patch of 2FA logins gatekept · round #2 · pull #1 · baileytownsend.dev/pds-gatekeeper

+10

Cargo.lock

···

       287
        
       dependencies = [

     

       288
        
        "android-tzdata",

     

       289
        
        "iana-time-zone",

     

       0
        
       
     

       290
        
        "num-traits",

     

       0
        
       
     

       291
        
        "windows-link",

     

       292
        
       ]

     

       293
        
       

     
···

       1652
        
       name = "pds_gatekeeper"

     

       1653
        
       version = "0.1.0"

     

       1654
        
       dependencies = [

     

       0
        
       
     

       1655
        
        "axum",

     

       1656
        
        "axum-template",

     

       0
        
       
     

       1657
        
        "dotenvy",

     

       1658
        
        "handlebars",

     

       1659
        
        "hex",

     

       1660
        
        "hyper-util",

     

       1661
        
        "jwt-compact",

     

       1662
        
        "lettre",

     

       0
        
       
     

       1663
        
        "rust-embed",

     

       1664
        
        "scrypt",

     

       1665
        
        "serde",

     

       1666
        
        "serde_json",

     

       0
        
       
     

       1667
        
        "sqlx",

     

       1668
        
        "tokio",

     

       1669
        
        "tower-http",

     
···

       2393
        
       dependencies = [

     

       2394
        
        "base64",

     

       2395
        
        "bytes",

     

       0
        
       
     

       2396
        
        "crc",

     

       2397
        
        "crossbeam-queue",

     

       2398
        
        "either",

     
···

       2470
        
        "bitflags",

     

       2471
        
        "byteorder",

     

       2472
        
        "bytes",

     

       0
        
       
     

       2473
        
        "crc",

     

       2474
        
        "digest",

     

       2475
        
        "dotenvy",

     
···

       2511
        
        "base64",

     

       2512
        
        "bitflags",

     

       2513
        
        "byteorder",

     

       0
        
       
     

       2514
        
        "crc",

     

       2515
        
        "dotenvy",

     

       2516
        
        "etcetera",

     
···

       2545
        
       checksum = "c2d12fe70b2c1b4401038055f90f151b78208de1f9f89a7dbfd41587a10c3eea"

     

       2546
        
       dependencies = [

     

       2547
        
        "atoi",

     

       0
        
       
     

       2548
        
        "flume",

     

       2549
        
        "futures-channel",

     

       2550
        
        "futures-core",

···

       287
        
       dependencies = [

     

       288
        
        "android-tzdata",

     

       289
        
        "iana-time-zone",

     

       290
       +
        "js-sys",

     

       291
        
        "num-traits",

     

       292
       +
        "wasm-bindgen",

     

       293
        
        "windows-link",

     

       294
        
       ]

     

       295
        
       

     
···

       1654
        
       name = "pds_gatekeeper"

     

       1655
        
       version = "0.1.0"

     

       1656
        
       dependencies = [

     

       1657
       +
        "anyhow",

     

       1658
        
        "axum",

     

       1659
        
        "axum-template",

     

       1660
       +
        "chrono",

     

       1661
        
        "dotenvy",

     

       1662
        
        "handlebars",

     

       1663
        
        "hex",

     

       1664
        
        "hyper-util",

     

       1665
        
        "jwt-compact",

     

       1666
        
        "lettre",

     

       1667
       +
        "rand 0.9.2",

     

       1668
        
        "rust-embed",

     

       1669
        
        "scrypt",

     

       1670
        
        "serde",

     

       1671
        
        "serde_json",

     

       1672
       +
        "sha2",

     

       1673
        
        "sqlx",

     

       1674
        
        "tokio",

     

       1675
        
        "tower-http",

     
···

       2399
        
       dependencies = [

     

       2400
        
        "base64",

     

       2401
        
        "bytes",

     

       2402
       +
        "chrono",

     

       2403
        
        "crc",

     

       2404
        
        "crossbeam-queue",

     

       2405
        
        "either",

     
···

       2477
        
        "bitflags",

     

       2478
        
        "byteorder",

     

       2479
        
        "bytes",

     

       2480
       +
        "chrono",

     

       2481
        
        "crc",

     

       2482
        
        "digest",

     

       2483
        
        "dotenvy",

     
···

       2519
        
        "base64",

     

       2520
        
        "bitflags",

     

       2521
        
        "byteorder",

     

       2522
       +
        "chrono",

     

       2523
        
        "crc",

     

       2524
        
        "dotenvy",

     

       2525
        
        "etcetera",

     
···

       2554
        
       checksum = "c2d12fe70b2c1b4401038055f90f151b78208de1f9f89a7dbfd41587a10c3eea"

     

       2555
        
       dependencies = [

     

       2556
        
        "atoi",

     

       2557
       +
        "chrono",

     

       2558
        
        "flume",

     

       2559
        
        "futures-channel",

     

       2560
        
        "futures-core",

+5 -1

Cargo.toml

···

       6
        
       [dependencies]

     

       7
        
       axum = { version = "0.8.4", features = ["macros", "json"] }

     

       8
        
       tokio = { version = "1.47.1", features = ["rt-multi-thread", "macros", "signal"] }

     

       9
       -
       sqlx = { version = "0.8.6", features = ["runtime-tokio-rustls", "sqlite", "migrate"] }

     

       10
        
       dotenvy = "0.15.7"

     

       11
        
       serde = { version = "1.0", features = ["derive"] }

     

       12
        
       serde_json = "1.0"

     
···

       22
        
       handlebars = { version = "6.3.2", features = ["rust-embed"] }

     

       23
        
       rust-embed = "8.7.2"

     

       24
        
       axum-template = { version = "3.0.0", features = ["handlebars"] }

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0

···

       6
        
       [dependencies]

     

       7
        
       axum = { version = "0.8.4", features = ["macros", "json"] }

     

       8
        
       tokio = { version = "1.47.1", features = ["rt-multi-thread", "macros", "signal"] }

     

       9
       +
       sqlx = { version = "0.8.6", features = ["runtime-tokio-rustls", "sqlite", "migrate", "chrono"] }

     

       10
        
       dotenvy = "0.15.7"

     

       11
        
       serde = { version = "1.0", features = ["derive"] }

     

       12
        
       serde_json = "1.0"

     
···

       22
        
       handlebars = { version = "6.3.2", features = ["rust-embed"] }

     

       23
        
       rust-embed = "8.7.2"

     

       24
        
       axum-template = { version = "3.0.0", features = ["handlebars"] }

     

       25
       +
       rand = "0.9.2"

     

       26
       +
       anyhow = "1.0.99"

     

       27
       +
       chrono = "0.4.41"

     

       28
       +
       sha2 = "0.10"

+5 -6

README.md

···

       12
        
       

     

       13
        
       ## 2FA

     

       14
        
       

     

       15
       -
       - [x] Ability to turn on/off 2FA

     

       16
       -
       - [x] getSession overwrite to set the `emailAuthFactor` flag if the user has 2FA turned on

     

       17
       -
       - [x] send an email using the `PDS_EMAIL_SMTP_URL` with a handlebar email template like Bluesky's 2FA sign in email.

     

       18
       -
       - [ ] generate a 2FA code

     

       19
       -
       - [ ] createSession gatekeeping (It does stop logins, just eh, doesn't actually send a real code or check it yet)

     

       20
       -
       - [ ] oauth endpoint gatekeeping

     

       21
        
       

     

       22
        
       ## Captcha on Create Account

     

       23
        
       

     
···

       25
        
       

     

       26
        
       # Setup

     

       27
        
       

     

       0
        
       
     

       0
        
       
     

       28
        
       Nothing here yet! If you are brave enough to try before full release, let me know and I'll help you set it up.

     

       29
        
       But I want to run it locally on my own PDS first to test run it a bit.

     

       30
        
       

     
···

       37
        
               path /xrpc/com.atproto.server.getSession

     

       38
        
               path /xrpc/com.atproto.server.updateEmail

     

       39
        
               path /xrpc/com.atproto.server.createSession

     

       0
        
       
     

       40
        
           }

     

       41
        
       

     

       42
        
           handle @gatekeeper {

···

       12
        
       

     

       13
        
       ## 2FA

     

       14
        
       

     

       15
       +
       - Overrides The login endpoint to add 2FA for both Bluesky client logged in and OAuth logins

     

       16
       +
       - Overrides the settings endpoints as well. As long as you have a confirmed email you can turn on 2FA

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       17
        
       

     

       18
        
       ## Captcha on Create Account

     

       19
        
       

     
···

       21
        
       

     

       22
        
       # Setup

     

       23
        
       

     

       24
       +
       We are getting close! Testing now

     

       25
       +
       

     

       26
        
       Nothing here yet! If you are brave enough to try before full release, let me know and I'll help you set it up.

     

       27
        
       But I want to run it locally on my own PDS first to test run it a bit.

     

       28
        
       

     
···

       35
        
               path /xrpc/com.atproto.server.getSession

     

       36
        
               path /xrpc/com.atproto.server.updateEmail

     

       37
        
               path /xrpc/com.atproto.server.createSession

     

       38
       +
               path /@atproto/oauth-provider/~api/sign-in

     

       39
        
           }

     

       40
        
       

     

       41
        
           handle @gatekeeper {

-3

migrations_bells_and_whistles/.keep

···

       1
       -
       # This directory holds SQLx migrations for the bells_and_whistles.sqlite database.

     

       2
       -
       # It is intentionally empty for now; running `sqlx::migrate!` will still ensure the

     

       3
       -
       # migrations table exists and succeed with zero migrations.

+524

src/helpers.rs

···

       1
       +
       use crate::AppState;

     

       2
       +
       use crate::helpers::TokenCheckError::InvalidToken;

     

       3
       +
       use anyhow::anyhow;

     

       4
       +
       use axum::body::{Body, to_bytes};

     

       5
       +
       use axum::extract::Request;

     

       6
       +
       use axum::http::header::CONTENT_TYPE;

     

       7
       +
       use axum::http::{HeaderMap, StatusCode, Uri};

     

       8
       +
       use axum::response::{IntoResponse, Response};

     

       9
       +
       use axum_template::TemplateEngine;

     

       10
       +
       use chrono::Utc;

     

       11
       +
       use lettre::message::{MultiPart, SinglePart, header};

     

       12
       +
       use lettre::{AsyncTransport, Message};

     

       13
       +
       use rand::Rng;

     

       14
       +
       use serde::de::DeserializeOwned;

     

       15
       +
       use serde_json::{Map, Value};

     

       16
       +
       use sha2::{Digest, Sha256};

     

       17
       +
       use sqlx::SqlitePool;

     

       18
       +
       use tracing::{error, log};

     

       19
       +
       

     

       20
       +
       ///Used to generate the email 2fa code

     

       21
       +
       const UPPERCASE_BASE32_CHARS: &[u8] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";

     

       22
       +
       

     

       23
       +
       /// The result of a proxied call that attempts to parse JSON.

     

       24
       +
       pub enum ProxiedResult<T> {

     

       25
       +
           /// Successfully parsed JSON body along with original response headers.

     

       26
       +
           Parsed { value: T, _headers: HeaderMap },

     

       27
       +
           /// Could not or should not parse: return the original (or rebuilt) response as-is.

     

       28
       +
           Passthrough(Response<Body>),

     

       29
       +
       }

     

       30
       +
       

     

       31
       +
       /// Proxy the incoming request to the PDS base URL plus the provided path and attempt to parse

     

       32
       +
       /// the successful response body as JSON into `T`.

     

       33
       +
       ///

     

       34
       +
       pub async fn proxy_get_json<T>(

     

       35
       +
           state: &AppState,

     

       36
       +
           mut req: Request,

     

       37
       +
           path: &str,

     

       38
       +
       ) -> Result<ProxiedResult<T>, StatusCode>

     

       39
       +
       where

     

       40
       +
           T: DeserializeOwned,

     

       41
       +
       {

     

       42
       +
           let uri = format!("{}{}", state.pds_base_url, path);

     

       43
       +
           *req.uri_mut() = Uri::try_from(uri).map_err(|_| StatusCode::BAD_REQUEST)?;

     

       44
       +
       

     

       45
       +
           let result = state

     

       46
       +
               .reverse_proxy_client

     

       47
       +
               .request(req)

     

       48
       +
               .await

     

       49
       +
               .map_err(|_| StatusCode::BAD_REQUEST)?

     

       50
       +
               .into_response();

     

       51
       +
       

     

       52
       +
           if result.status() != StatusCode::OK {

     

       53
       +
               return Ok(ProxiedResult::Passthrough(result));

     

       54
       +
           }

     

       55
       +
       

     

       56
       +
           let response_headers = result.headers().clone();

     

       57
       +
           let body = result.into_body();

     

       58
       +
           let body_bytes = to_bytes(body, usize::MAX)

     

       59
       +
               .await

     

       60
       +
               .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       61
       +
       

     

       62
       +
           match serde_json::from_slice::<T>(&body_bytes) {

     

       63
       +
               Ok(value) => Ok(ProxiedResult::Parsed {

     

       64
       +
                   value,

     

       65
       +
                   _headers: response_headers,

     

       66
       +
               }),

     

       67
       +
               Err(err) => {

     

       68
       +
                   error!(%err, "failed to parse proxied JSON response; returning original body");

     

       69
       +
                   let mut builder = Response::builder().status(StatusCode::OK);

     

       70
       +
                   if let Some(headers) = builder.headers_mut() {

     

       71
       +
                       *headers = response_headers;

     

       72
       +
                   }

     

       73
       +
                   let resp = builder

     

       74
       +
                       .body(Body::from(body_bytes))

     

       75
       +
                       .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       76
       +
                   Ok(ProxiedResult::Passthrough(resp))

     

       77
       +
               }

     

       78
       +
           }

     

       79
       +
       }

     

       80
       +
       

     

       81
       +
       /// Build a JSON error response with the required Content-Type header

     

       82
       +
       /// Content-Type: application/json;charset=utf-8

     

       83
       +
       /// Body shape: { "error": string, "message": string }

     

       84
       +
       pub fn json_error_response(

     

       85
       +
           status: StatusCode,

     

       86
       +
           error: impl Into<String>,

     

       87
       +
           message: impl Into<String>,

     

       88
       +
       ) -> Result<Response<Body>, StatusCode> {

     

       89
       +
           let body_str = match serde_json::to_string(&serde_json::json!({

     

       90
       +
               "error": error.into(),

     

       91
       +
               "message": message.into(),

     

       92
       +
           })) {

     

       93
       +
               Ok(s) => s,

     

       94
       +
               Err(_) => return Err(StatusCode::BAD_REQUEST),

     

       95
       +
           };

     

       96
       +
       

     

       97
       +
           Response::builder()

     

       98
       +
               .status(status)

     

       99
       +
               .header(CONTENT_TYPE, "application/json;charset=utf-8")

     

       100
       +
               .body(Body::from(body_str))

     

       101
       +
               .map_err(|_| StatusCode::BAD_REQUEST)

     

       102
       +
       }

     

       103
       +
       

     

       104
       +
       /// Build a JSON error response with the required Content-Type header

     

       105
       +
       /// Content-Type: application/json (oauth endpoint does not like utf ending)

     

       106
       +
       /// Body shape: { "error": string, "error_description": string }

     

       107
       +
       pub fn oauth_json_error_response(

     

       108
       +
           status: StatusCode,

     

       109
       +
           error: impl Into<String>,

     

       110
       +
           message: impl Into<String>,

     

       111
       +
       ) -> Result<Response<Body>, StatusCode> {

     

       112
       +
           let body_str = match serde_json::to_string(&serde_json::json!({

     

       113
       +
               "error": error.into(),

     

       114
       +
               "error_description": message.into(),

     

       115
       +
           })) {

     

       116
       +
               Ok(s) => s,

     

       117
       +
               Err(_) => return Err(StatusCode::BAD_REQUEST),

     

       118
       +
           };

     

       119
       +
       

     

       120
       +
           Response::builder()

     

       121
       +
               .status(status)

     

       122
       +
               .header(CONTENT_TYPE, "application/json")

     

       123
       +
               .body(Body::from(body_str))

     

       124
       +
               .map_err(|_| StatusCode::BAD_REQUEST)

     

       125
       +
       }

     

       126
       +
       

     

       127
       +
       /// Creates a random token of 10 characters for email 2FA

     

       128
       +
       pub fn get_random_token() -> String {

     

       129
       +
           let mut rng = rand::rng();

     

       130
       +
       

     

       131
       +
           let mut full_code = String::with_capacity(10);

     

       132
       +
           for _ in 0..10 {

     

       133
       +
               let idx = rng.random_range(0..UPPERCASE_BASE32_CHARS.len());

     

       134
       +
               full_code.push(UPPERCASE_BASE32_CHARS[idx] as char);

     

       135
       +
           }

     

       136
       +
       

     

       137
       +
           //The PDS implementation creates in lowercase, then converts to uppercase.

     

       138
       +
           //Just going a head and doing uppercase here.

     

       139
       +
           let slice_one = &full_code[0..5].to_ascii_uppercase();

     

       140
       +
           let slice_two = &full_code[5..10].to_ascii_uppercase();

     

       141
       +
           format!("{slice_one}-{slice_two}")

     

       142
       +
       }

     

       143
       +
       

     

       144
       +
       pub enum TokenCheckError {

     

       145
       +
           InvalidToken,

     

       146
       +
           ExpiredToken,

     

       147
       +
       }

     

       148
       +
       

     

       149
       +
       pub enum AuthResult {

     

       150
       +
           WrongIdentityOrPassword,

     

       151
       +
           /// The string here is the email address to create a hint for oauth

     

       152
       +
           TwoFactorRequired(String),

     

       153
       +
           /// User does not have 2FA enabled, or using an app password, or passes it

     

       154
       +
           ProxyThrough,

     

       155
       +
           TokenCheckFailed(TokenCheckError),

     

       156
       +
       }

     

       157
       +
       

     

       158
       +
       pub enum IdentifierType {

     

       159
       +
           Email,

     

       160
       +
           Did,

     

       161
       +
           Handle,

     

       162
       +
       }

     

       163
       +
       

     

       164
       +
       impl IdentifierType {

     

       165
       +
           fn what_is_it(identifier: String) -> Self {

     

       166
       +
               if identifier.contains("@") {

     

       167
       +
                   IdentifierType::Email

     

       168
       +
               } else if identifier.contains("did:") {

     

       169
       +
                   IdentifierType::Did

     

       170
       +
               } else {

     

       171
       +
                   IdentifierType::Handle

     

       172
       +
               }

     

       173
       +
           }

     

       174
       +
       }

     

       175
       +
       

     

       176
       +
       /// Creates a hex string from the password and salt to find app passwords

     

       177
       +
       fn scrypt_hex(password: &str, salt: &str) -> anyhow::Result<String> {

     

       178
       +
           let params = scrypt::Params::new(14, 8, 1, 64)?;

     

       179
       +
           let mut derived = [0u8; 64];

     

       180
       +
           scrypt::scrypt(password.as_bytes(), salt.as_bytes(), &params, &mut derived)?;

     

       181
       +
           Ok(hex::encode(derived))

     

       182
       +
       }

     

       183
       +
       

     

       184
       +
       /// Hashes the app password. did is used as the salt.

     

       185
       +
       pub fn hash_app_password(did: &str, password: &str) -> anyhow::Result<String> {

     

       186
       +
           let mut hasher = Sha256::new();

     

       187
       +
           hasher.update(did.as_bytes());

     

       188
       +
           let sha = hasher.finalize();

     

       189
       +
           let salt = hex::encode(&sha[..16]);

     

       190
       +
           let hash_hex = scrypt_hex(password, &salt)?;

     

       191
       +
           Ok(format!("{salt}:{hash_hex}"))

     

       192
       +
       }

     

       193
       +
       

     

       194
       +
       async fn verify_password(password: &str, password_scrypt: &str) -> anyhow::Result<bool> {

     

       195
       +
           // Expected format: "salt:hash" where hash is hex of scrypt(password, salt, 64 bytes)

     

       196
       +
           let mut parts = password_scrypt.splitn(2, ':');

     

       197
       +
           let salt = match parts.next() {

     

       198
       +
               Some(s) if !s.is_empty() => s,

     

       199
       +
               _ => return Ok(false),

     

       200
       +
           };

     

       201
       +
           let stored_hash_hex = match parts.next() {

     

       202
       +
               Some(h) if !h.is_empty() => h,

     

       203
       +
               _ => return Ok(false),

     

       204
       +
           };

     

       205
       +
       

     

       206
       +
           // Derive using the shared helper and compare

     

       207
       +
           let derived_hex = match scrypt_hex(password, salt) {

     

       208
       +
               Ok(h) => h,

     

       209
       +
               Err(_) => return Ok(false),

     

       210
       +
           };

     

       211
       +
       

     

       212
       +
           Ok(derived_hex.as_str() == stored_hash_hex)

     

       213
       +
       }

     

       214
       +
       

     

       215
       +
       /// Handles the auth checks along with sending a 2fa email

     

       216
       +
       pub async fn preauth_check(

     

       217
       +
           state: &AppState,

     

       218
       +
           identifier: &str,

     

       219
       +
           password: &str,

     

       220
       +
           two_factor_code: Option<String>,

     

       221
       +
           oauth: bool,

     

       222
       +
       ) -> anyhow::Result<AuthResult> {

     

       223
       +
           // Determine identifier type

     

       224
       +
           let id_type = IdentifierType::what_is_it(identifier.to_string());

     

       225
       +
       

     

       226
       +
           // Query account DB for did and passwordScrypt based on identifier type

     

       227
       +
           let account_row: Option<(String, String, String, String)> = match id_type {

     

       228
       +
               IdentifierType::Email => {

     

       229
       +
                   sqlx::query_as::<_, (String, String, String, String)>(

     

       230
       +
                       "SELECT account.did, account.passwordScrypt, account.email, actor.handle

     

       231
       +
                        FROM actor

     

       232
       +
                        LEFT JOIN account ON actor.did = account.did

     

       233
       +
                        where account.email = ? LIMIT 1",

     

       234
       +
                   )

     

       235
       +
                   .bind(identifier)

     

       236
       +
                   .fetch_optional(&state.account_pool)

     

       237
       +
                   .await?

     

       238
       +
               }

     

       239
       +
               IdentifierType::Handle => {

     

       240
       +
                   sqlx::query_as::<_, (String, String, String, String)>(

     

       241
       +
                       "SELECT account.did, account.passwordScrypt, account.email, actor.handle

     

       242
       +
                        FROM actor

     

       243
       +
                        LEFT JOIN account ON actor.did = account.did

     

       244
       +
                        where actor.handle = ? LIMIT 1",

     

       245
       +
                   )

     

       246
       +
                   .bind(identifier)

     

       247
       +
                   .fetch_optional(&state.account_pool)

     

       248
       +
                   .await?

     

       249
       +
               }

     

       250
       +
               IdentifierType::Did => {

     

       251
       +
                   sqlx::query_as::<_, (String, String, String, String)>(

     

       252
       +
                       "SELECT account.did, account.passwordScrypt, account.email, actor.handle

     

       253
       +
                        FROM actor

     

       254
       +
                        LEFT JOIN account ON actor.did = account.did

     

       255
       +
                        where account.did = ? LIMIT 1",

     

       256
       +
                   )

     

       257
       +
                   .bind(identifier)

     

       258
       +
                   .fetch_optional(&state.account_pool)

     

       259
       +
                   .await?

     

       260
       +
               }

     

       261
       +
           };

     

       262
       +
       

     

       263
       +
           if let Some((did, password_scrypt, email, handle)) = account_row {

     

       264
       +
               // Verify password before proceeding to 2FA email step

     

       265
       +
               let verified = verify_password(password, &password_scrypt).await?;

     

       266
       +
               if !verified {

     

       267
       +
                   if oauth {

     

       268
       +
                       //OAuth does not allow app password logins so just go ahead and send it along it's way

     

       269
       +
                       return Ok(AuthResult::WrongIdentityOrPassword);

     

       270
       +
                   }

     

       271
       +
                   //Theres a chance it could be an app password so check that as well

     

       272
       +
                   return match verify_app_password(&state.account_pool, &did, password).await {

     

       273
       +
                       Ok(valid) => {

     

       274
       +
                           if valid {

     

       275
       +
                               //Was a valid app password up to the PDS now

     

       276
       +
                               Ok(AuthResult::ProxyThrough)

     

       277
       +
                           } else {

     

       278
       +
                               Ok(AuthResult::WrongIdentityOrPassword)

     

       279
       +
                           }

     

       280
       +
                       }

     

       281
       +
                       Err(err) => {

     

       282
       +
                           log::error!("Error checking the app password: {err}");

     

       283
       +
                           Err(err)

     

       284
       +
                       }

     

       285
       +
                   };

     

       286
       +
               }

     

       287
       +
       

     

       288
       +
               // Check two-factor requirement for this DID in the gatekeeper DB

     

       289
       +
               let required_opt = sqlx::query_as::<_, (u8,)>(

     

       290
       +
                   "SELECT required FROM two_factor_accounts WHERE did = ? LIMIT 1",

     

       291
       +
               )

     

       292
       +
               .bind(did.clone())

     

       293
       +
               .fetch_optional(&state.pds_gatekeeper_pool)

     

       294
       +
               .await?;

     

       295
       +
       

     

       296
       +
               let two_factor_required = match required_opt {

     

       297
       +
                   Some(row) => row.0 != 0,

     

       298
       +
                   None => false,

     

       299
       +
               };

     

       300
       +
       

     

       301
       +
               if two_factor_required {

     

       302
       +
                   //Two factor is required and a taken was provided

     

       303
       +
                   if let Some(two_factor_code) = two_factor_code {

     

       304
       +
                       //if the two_factor_code is set need to see if we have a valid token

     

       305
       +
                       if !two_factor_code.is_empty() {

     

       306
       +
                           return match assert_valid_token(

     

       307
       +
                               &state.account_pool,

     

       308
       +
                               did.clone(),

     

       309
       +
                               two_factor_code,

     

       310
       +
                           )

     

       311
       +
                           .await

     

       312
       +
                           {

     

       313
       +
                               Ok(_) => {

     

       314
       +
                                   let result_of_cleanup =

     

       315
       +
                                       delete_all_email_tokens(&state.account_pool, did.clone()).await;

     

       316
       +
                                   if result_of_cleanup.is_err() {

     

       317
       +
                                       log::error!(

     

       318
       +
                                           "There was an error deleting the email tokens after login: {:?}",

     

       319
       +
                                           result_of_cleanup.err()

     

       320
       +
                                       )

     

       321
       +
                                   }

     

       322
       +
                                   Ok(AuthResult::ProxyThrough)

     

       323
       +
                               }

     

       324
       +
                               Err(err) => Ok(AuthResult::TokenCheckFailed(err)),

     

       325
       +
                           };

     

       326
       +
                       }

     

       327
       +
                   }

     

       328
       +
       

     

       329
       +
                   return match create_two_factor_token(&state.account_pool, did).await {

     

       330
       +
                       Ok(code) => {

     

       331
       +
                           let mut email_data = Map::new();

     

       332
       +
                           email_data.insert("token".to_string(), Value::from(code.clone()));

     

       333
       +
                           email_data.insert("handle".to_string(), Value::from(handle.clone()));

     

       334
       +
                           let email_body = state

     

       335
       +
                               .template_engine

     

       336
       +
                               .render("two_factor_code.hbs", email_data)?;

     

       337
       +
       

     

       338
       +
                           let email_message = Message::builder()

     

       339
       +
                               //TODO prob get the proper type in the state

     

       340
       +
                               .from(state.mailer_from.parse()?)

     

       341
       +
                               .to(email.parse()?)

     

       342
       +
                               .subject("Sign in to Bluesky")

     

       343
       +
                               .multipart(

     

       344
       +
                                   MultiPart::alternative() // This is composed of two parts.

     

       345
       +
                                       .singlepart(

     

       346
       +
                                           SinglePart::builder()

     

       347
       +
                                               .header(header::ContentType::TEXT_PLAIN)

     

       348
       +
                                               .body(format!("We received a sign-in request for the account @{handle}. Use the code: {code} to sign in. If this wasn't you, we recommend taking steps to protect your account by changing your password at https://bsky.app/settings.")), // Every message should have a plain text fallback.

     

       349
       +
                                       )

     

       350
       +
                                       .singlepart(

     

       351
       +
                                           SinglePart::builder()

     

       352
       +
                                               .header(header::ContentType::TEXT_HTML)

     

       353
       +
                                               .body(email_body),

     

       354
       +
                                       ),

     

       355
       +
                               )?;

     

       356
       +
                           match state.mailer.send(email_message).await {

     

       357
       +
                               Ok(_) => Ok(AuthResult::TwoFactorRequired(mask_email(email))),

     

       358
       +
                               Err(err) => {

     

       359
       +
                                   log::error!("Error sending the 2FA email: {err}");

     

       360
       +
                                   Err(anyhow!(err))

     

       361
       +
                               }

     

       362
       +
                           }

     

       363
       +
                       }

     

       364
       +
                       Err(err) => {

     

       365
       +
                           log::error!("error on creating a 2fa token: {err}");

     

       366
       +
                           Err(anyhow!(err))

     

       367
       +
                       }

     

       368
       +
                   };

     

       369
       +
               }

     

       370
       +
           }

     

       371
       +
       

     

       372
       +
           // No local 2FA requirement (or account not found)

     

       373
       +
           Ok(AuthResult::ProxyThrough)

     

       374
       +
       }

     

       375
       +
       

     

       376
       +
       pub async fn create_two_factor_token(

     

       377
       +
           account_db: &SqlitePool,

     

       378
       +
           did: String,

     

       379
       +
       ) -> anyhow::Result<String> {

     

       380
       +
           let purpose = "2fa_code";

     

       381
       +
       

     

       382
       +
           let token = get_random_token();

     

       383
       +
           let right_now = Utc::now();

     

       384
       +
       

     

       385
       +
           let res = sqlx::query(

     

       386
       +
               "INSERT INTO email_token (purpose, did, token, requestedAt)

     

       387
       +
                            VALUES (?, ?, ?, ?)

     

       388
       +
                            ON CONFLICT(purpose, did) DO UPDATE SET

     

       389
       +
                              token=excluded.token,

     

       390
       +
                              requestedAt=excluded.requestedAt

     

       391
       +
                              WHERE did=excluded.did",

     

       392
       +
           )

     

       393
       +
           .bind(purpose)

     

       394
       +
           .bind(&did)

     

       395
       +
           .bind(&token)

     

       396
       +
           .bind(right_now)

     

       397
       +
           .execute(account_db)

     

       398
       +
           .await;

     

       399
       +
       

     

       400
       +
           match res {

     

       401
       +
               Ok(_) => Ok(token),

     

       402
       +
               Err(err) => {

     

       403
       +
                   log::error!("Error creating a two factor token: {err}");

     

       404
       +
                   Err(anyhow::anyhow!(err))

     

       405
       +
               }

     

       406
       +
           }

     

       407
       +
       }

     

       408
       +
       

     

       409
       +
       pub async fn delete_all_email_tokens(account_db: &SqlitePool, did: String) -> anyhow::Result<()> {

     

       410
       +
           sqlx::query("DELETE FROM email_token WHERE did = ?")

     

       411
       +
               .bind(did)

     

       412
       +
               .execute(account_db)

     

       413
       +
               .await?;

     

       414
       +
           Ok(())

     

       415
       +
       }

     

       416
       +
       

     

       417
       +
       pub async fn assert_valid_token(

     

       418
       +
           account_db: &SqlitePool,

     

       419
       +
           did: String,

     

       420
       +
           token: String,

     

       421
       +
       ) -> Result<(), TokenCheckError> {

     

       422
       +
           let token_upper = token.to_ascii_uppercase();

     

       423
       +
           let purpose = "2fa_code";

     

       424
       +
       

     

       425
       +
           let row: Option<(String,)> = sqlx::query_as(

     

       426
       +
               "SELECT requestedAt FROM email_token WHERE purpose = ? AND did = ? AND token = ? LIMIT 1",

     

       427
       +
           )

     

       428
       +
           .bind(purpose)

     

       429
       +
           .bind(did)

     

       430
       +
           .bind(token_upper)

     

       431
       +
           .fetch_optional(account_db)

     

       432
       +
           .await

     

       433
       +
           .map_err(|err| {

     

       434
       +
               log::error!("Error getting the 2fa token: {err}");

     

       435
       +
               InvalidToken

     

       436
       +
           })?;

     

       437
       +
       

     

       438
       +
           match row {

     

       439
       +
               None => Err(InvalidToken),

     

       440
       +
               Some(row) => {

     

       441
       +
                   // Token lives for 15 minutes

     

       442
       +
                   let expiration_ms = 15 * 60_000;

     

       443
       +
       

     

       444
       +
                   let requested_at_utc = match chrono::DateTime::parse_from_rfc3339(&row.0) {

     

       445
       +
                       Ok(dt) => dt.with_timezone(&Utc),

     

       446
       +
                       Err(_) => {

     

       447
       +
                           return Err(TokenCheckError::InvalidToken);

     

       448
       +
                       }

     

       449
       +
                   };

     

       450
       +
       

     

       451
       +
                   let now = Utc::now();

     

       452
       +
                   let age_ms = (now - requested_at_utc).num_milliseconds();

     

       453
       +
                   let expired = age_ms > expiration_ms;

     

       454
       +
                   if expired {

     

       455
       +
                       return Err(TokenCheckError::ExpiredToken);

     

       456
       +
                   }

     

       457
       +
       

     

       458
       +
                   Ok(())

     

       459
       +
               }

     

       460
       +
           }

     

       461
       +
       }

     

       462
       +
       

     

       463
       +
       /// We just need to confirm if it's there or not. Will let the PDS do the actual figuring of permissions

     

       464
       +
       pub async fn verify_app_password(

     

       465
       +
           account_db: &SqlitePool,

     

       466
       +
           did: &str,

     

       467
       +
           password: &str,

     

       468
       +
       ) -> anyhow::Result<bool> {

     

       469
       +
           let password_scrypt = hash_app_password(did, password)?;

     

       470
       +
       

     

       471
       +
           let row: Option<(i64,)> = sqlx::query_as(

     

       472
       +
               "SELECT Count(*) FROM app_password WHERE did = ? AND passwordScrypt = ? LIMIT 1",

     

       473
       +
           )

     

       474
       +
           .bind(did)

     

       475
       +
           .bind(password_scrypt)

     

       476
       +
           .fetch_optional(account_db)

     

       477
       +
           .await?;

     

       478
       +
       

     

       479
       +
           Ok(match row {

     

       480
       +
               None => false,

     

       481
       +
               Some((count,)) => count > 0,

     

       482
       +
           })

     

       483
       +
       }

     

       484
       +
       

     

       485
       +
       /// Mask an email address into a hint like "2***0@p***m".

     

       486
       +
       pub fn mask_email(email: String) -> String {

     

       487
       +
           // Basic split on first '@'

     

       488
       +
           let mut parts = email.splitn(2, '@');

     

       489
       +
           let local = match parts.next() {

     

       490
       +
               Some(l) => l,

     

       491
       +
               None => return email.to_string(),

     

       492
       +
           };

     

       493
       +
           let domain_rest = match parts.next() {

     

       494
       +
               Some(d) if !d.is_empty() => d,

     

       495
       +
               _ => return email.to_string(),

     

       496
       +
           };

     

       497
       +
       

     

       498
       +
           // Helper to mask a single label (keep first and last, middle becomes ***).

     

       499
       +
           fn mask_label(s: &str) -> String {

     

       500
       +
               let chars: Vec<char> = s.chars().collect();

     

       501
       +
               match chars.len() {

     

       502
       +
                   0 => String::new(),

     

       503
       +
                   1 => format!("{}***", chars[0]),

     

       504
       +
                   2 => format!("{}***{}", chars[0], chars[1]),

     

       505
       +
                   _ => format!("{}***{}", chars[0], chars[chars.len() - 1]),

     

       506
       +
               }

     

       507
       +
           }

     

       508
       +
       

     

       509
       +
           // Mask local

     

       510
       +
           let masked_local = mask_label(local);

     

       511
       +
       

     

       512
       +
           // Mask first domain label only, keep the rest of the domain intact

     

       513
       +
           let mut dom_parts = domain_rest.splitn(2, '.');

     

       514
       +
           let first_label = dom_parts.next().unwrap_or("");

     

       515
       +
           let rest = dom_parts.next();

     

       516
       +
           let masked_first = mask_label(first_label);

     

       517
       +
           let masked_domain = if let Some(rest) = rest {

     

       518
       +
               format!("{}.{rest}", masked_first)

     

       519
       +
           } else {

     

       520
       +
               masked_first

     

       521
       +
           };

     

       522
       +
       

     

       523
       +
           format!("{masked_local}@{masked_domain}")

     

       524
       +
       }

+53 -26

src/main.rs

···

       0
        
       
     

       0
        
       
     

       1
        
       use crate::xrpc::com_atproto_server::{create_session, get_session, update_email};

     

       2
       -
       use axum::middleware as ax_middleware;

     

       3
       -
       mod middleware;

     

       4
        
       use axum::body::Body;

     

       5
        
       use axum::handler::Handler;

     

       6
        
       use axum::http::{Method, header};

     

       0
        
       
     

       7
        
       use axum::routing::post;

     

       8
        
       use axum::{Router, routing::get};

     

       9
        
       use axum_template::engine::Engine;

     
···

       21
        
       use tower_governor::governor::GovernorConfigBuilder;

     

       22
        
       use tower_http::compression::CompressionLayer;

     

       23
        
       use tower_http::cors::{Any, CorsLayer};

     

       24
       -
       use tracing::{error, log};

     

       25
        
       use tracing_subscriber::{EnvFilter, fmt, prelude::*};

     

       26
        
       

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       27
        
       mod xrpc;

     

       28
        
       

     

       29
        
       type HyperUtilClient = hyper_util::client::legacy::Client<HttpConnector, Body>;

     
···

       34
        
       struct EmailTemplates;

     

       35
        
       

     

       36
        
       #[derive(Clone)]

     

       37
       -
       struct AppState {

     

       38
        
           account_pool: SqlitePool,

     

       39
        
           pds_gatekeeper_pool: SqlitePool,

     

       40
        
           reverse_proxy_client: HyperUtilClient,

     
···

       73
        
       

     

       74
        
           let intro = "\n\nThis is a PDS gatekeeper\n\nCode: https://tangled.sh/@baileytownsend.dev/pds-gatekeeper\n";

     

       75
        
       

     

       76
       -
           let banner = format!("         {}\n{}", body, intro);

     

       77
        
       

     

       78
        
           (

     

       79
        
               [(header::CONTENT_TYPE, "text/plain; charset=utf-8")],

     
···

       84
        
       #[tokio::main]

     

       85
        
       async fn main() -> Result<(), Box<dyn std::error::Error>> {

     

       86
        
           setup_tracing();

     

       87
       -
           //TODO prod

     

       88
        
           dotenvy::from_path(Path::new("./pds.env"))?;

     

       89
        
           let pds_root = env::var("PDS_DATA_DIRECTORY")?;

     

       90
       -
           // let pds_root = "/home/baileytownsend/Documents/code/docker_compose/pds/pds_data";

     

       91
       -
           let account_db_url = format!("{}/account.sqlite", pds_root);

     

       92
       -
           log::info!("accounts_db_url: {}", account_db_url);

     

       93
        
       

     

       94
        
           let account_options = SqliteConnectOptions::new()

     

       95
       -
               .journal_mode(SqliteJournalMode::Wal)

     

       96
       -
               .filename(account_db_url);

     

       97
        
       

     

       98
        
           let account_pool = SqlitePoolOptions::new()

     

       99
        
               .max_connections(5)

     

       100
        
               .connect_with(account_options)

     

       101
        
               .await?;

     

       102
        
       

     

       103
       -
           let bells_db_url = format!("{}/pds_gatekeeper.sqlite", pds_root);

     

       104
        
           let options = SqliteConnectOptions::new()

     

       105
        
               .journal_mode(SqliteJournalMode::Wal)

     

       106
        
               .filename(bells_db_url)

     

       107
       -
               .create_if_missing(true);

     

       0
        
       
     

       108
        
           let pds_gatekeeper_pool = SqlitePoolOptions::new()

     

       109
        
               .max_connections(5)

     

       110
        
               .connect_with(options)

     

       111
        
               .await?;

     

       112
        
       

     

       113
       -
           // Run migrations for the bells_and_whistles database

     

       114
        
           // Note: the migrations are embedded at compile time from the given directory

     

       115
        
           // sqlx

     

       116
        
           sqlx::migrate!("./migrations")

     
···

       130
        
               AsyncSmtpTransport::<Tokio1Executor>::from_url(smtp_url.as_str())?.build();

     

       131
        
           //Email templates setup

     

       132
        
           let mut hbs = Handlebars::new();

     

       133
       -
           let _ = hbs.register_embed_templates::<EmailTemplates>();

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       134
        
       

     

       135
        
           let state = AppState {

     

       136
        
               account_pool,

     

       137
        
               pds_gatekeeper_pool,

     

       138
        
               reverse_proxy_client: client,

     

       139
       -
               //TODO should be env prob

     

       140
       -
               pds_base_url: "http://localhost:3000".to_string(),

     

       141
        
               mailer,

     

       142
        
               mailer_from: sent_from,

     

       143
        
               template_engine: Engine::from(hbs),

     
···

       145
        
       

     

       146
        
           // Rate limiting

     

       147
        
           //Allows 5 within 60 seconds, and after 60 should drop one off? So hit 5, then goes to 4 after 60 seconds.

     

       148
       -
           let governor_conf = GovernorConfigBuilder::default()

     

       149
        
               .per_second(60)

     

       150
        
               .burst_size(5)

     

       151
        
               .finish()

     

       152
       -
               .unwrap();

     

       153
       -
           let governor_limiter = governor_conf.limiter().clone();

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       154
        
           let interval = Duration::from_secs(60);

     

       155
        
           // a separate background task to clean up

     

       156
        
           std::thread::spawn(move || {

     

       157
        
               loop {

     

       158
        
                   std::thread::sleep(interval);

     

       159
       -
                   tracing::info!("rate limiting storage size: {}", governor_limiter.len());

     

       160
       -
                   governor_limiter.retain_recent();

     

       161
        
               }

     

       162
        
           });

     

       163
        
       

     
···

       176
        
                   "/xrpc/com.atproto.server.updateEmail",

     

       177
        
                   post(update_email).layer(ax_middleware::from_fn(middleware::extract_did)),

     

       178
        
               )

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       179
        
               .route(

     

       180
        
                   "/xrpc/com.atproto.server.createSession",

     

       181
       -
                   post(create_session.layer(GovernorLayer::new(governor_conf))),

     

       182
        
               )

     

       183
        
               .layer(CompressionLayer::new())

     

       184
        
               .layer(cors)

     

       185
        
               .with_state(state);

     

       186
        
       

     

       187
       -
           let host = env::var("HOST").unwrap_or_else(|_| "127.0.0.1".to_string());

     

       188
       -
           let port: u16 = env::var("PORT")

     

       189
        
               .ok()

     

       190
        
               .and_then(|s| s.parse().ok())

     

       191
        
               .unwrap_or(8080);

     
···

       202
        
           .with_graceful_shutdown(shutdown_signal());

     

       203
        
       

     

       204
        
           if let Err(err) = server.await {

     

       205
       -
               error!(error = %err, "server error");

     

       206
        
           }

     

       207
        
       

     

       208
        
           Ok(())

···

       1
       +
       #![warn(clippy::unwrap_used)]

     

       2
       +
       use crate::oauth_provider::sign_in;

     

       3
        
       use crate::xrpc::com_atproto_server::{create_session, get_session, update_email};

     

       0
        
       
     

       0
        
       
     

       4
        
       use axum::body::Body;

     

       5
        
       use axum::handler::Handler;

     

       6
        
       use axum::http::{Method, header};

     

       7
       +
       use axum::middleware as ax_middleware;

     

       8
        
       use axum::routing::post;

     

       9
        
       use axum::{Router, routing::get};

     

       10
        
       use axum_template::engine::Engine;

     
···

       22
        
       use tower_governor::governor::GovernorConfigBuilder;

     

       23
        
       use tower_http::compression::CompressionLayer;

     

       24
        
       use tower_http::cors::{Any, CorsLayer};

     

       25
       +
       use tracing::log;

     

       26
        
       use tracing_subscriber::{EnvFilter, fmt, prelude::*};

     

       27
        
       

     

       28
       +
       pub mod helpers;

     

       29
       +
       mod middleware;

     

       30
       +
       mod oauth_provider;

     

       31
        
       mod xrpc;

     

       32
        
       

     

       33
        
       type HyperUtilClient = hyper_util::client::legacy::Client<HttpConnector, Body>;

     
···

       38
        
       struct EmailTemplates;

     

       39
        
       

     

       40
        
       #[derive(Clone)]

     

       41
       +
       pub struct AppState {

     

       42
        
           account_pool: SqlitePool,

     

       43
        
           pds_gatekeeper_pool: SqlitePool,

     

       44
        
           reverse_proxy_client: HyperUtilClient,

     
···

       77
        
       

     

       78
        
           let intro = "\n\nThis is a PDS gatekeeper\n\nCode: https://tangled.sh/@baileytownsend.dev/pds-gatekeeper\n";

     

       79
        
       

     

       80
       +
           let banner = format!("         {body}\n{intro}");

     

       81
        
       

     

       82
        
           (

     

       83
        
               [(header::CONTENT_TYPE, "text/plain; charset=utf-8")],

     
···

       88
        
       #[tokio::main]

     

       89
        
       async fn main() -> Result<(), Box<dyn std::error::Error>> {

     

       90
        
           setup_tracing();

     

       91
       +
           //TODO may need to change where this reads from? Like an env variable for it's location? Or arg?

     

       92
        
           dotenvy::from_path(Path::new("./pds.env"))?;

     

       93
        
           let pds_root = env::var("PDS_DATA_DIRECTORY")?;

     

       94
       +
           let account_db_url = format!("{pds_root}/account.sqlite");

     

       0
        
       
     

       0
        
       
     

       95
        
       

     

       96
        
           let account_options = SqliteConnectOptions::new()

     

       97
       +
               .filename(account_db_url)

     

       98
       +
               .busy_timeout(Duration::from_secs(5));

     

       99
        
       

     

       100
        
           let account_pool = SqlitePoolOptions::new()

     

       101
        
               .max_connections(5)

     

       102
        
               .connect_with(account_options)

     

       103
        
               .await?;

     

       104
        
       

     

       105
       +
           let bells_db_url = format!("{pds_root}/pds_gatekeeper.sqlite");

     

       106
        
           let options = SqliteConnectOptions::new()

     

       107
        
               .journal_mode(SqliteJournalMode::Wal)

     

       108
        
               .filename(bells_db_url)

     

       109
       +
               .create_if_missing(true)

     

       110
       +
               .busy_timeout(Duration::from_secs(5));

     

       111
        
           let pds_gatekeeper_pool = SqlitePoolOptions::new()

     

       112
        
               .max_connections(5)

     

       113
        
               .connect_with(options)

     

       114
        
               .await?;

     

       115
        
       

     

       116
       +
           // Run migrations for the extra database

     

       117
        
           // Note: the migrations are embedded at compile time from the given directory

     

       118
        
           // sqlx

     

       119
        
           sqlx::migrate!("./migrations")

     
···

       133
        
               AsyncSmtpTransport::<Tokio1Executor>::from_url(smtp_url.as_str())?.build();

     

       134
        
           //Email templates setup

     

       135
        
           let mut hbs = Handlebars::new();

     

       136
       +
       

     

       137
       +
           let users_email_directory = env::var("GATEKEEPER_EMAIL_TEMPLATES_DIRECTORY");

     

       138
       +
           if let Ok(users_email_directory) = users_email_directory {

     

       139
       +
               hbs.register_template_file(

     

       140
       +
                   "two_factor_code.hbs",

     

       141
       +
                   format!("{users_email_directory}/two_factor_code.hbs"),

     

       142
       +
               )?;

     

       143
       +
           } else {

     

       144
       +
               let _ = hbs.register_embed_templates::<EmailTemplates>();

     

       145
       +
           }

     

       146
       +
       

     

       147
       +
           let pds_base_url =

     

       148
       +
               env::var("PDS_BASE_URL").unwrap_or_else(|_| "http://localhost:3000".to_string());

     

       149
        
       

     

       150
        
           let state = AppState {

     

       151
        
               account_pool,

     

       152
        
               pds_gatekeeper_pool,

     

       153
        
               reverse_proxy_client: client,

     

       154
       +
               pds_base_url,

     

       0
        
       
     

       155
        
               mailer,

     

       156
        
               mailer_from: sent_from,

     

       157
        
               template_engine: Engine::from(hbs),

     
···

       159
        
       

     

       160
        
           // Rate limiting

     

       161
        
           //Allows 5 within 60 seconds, and after 60 should drop one off? So hit 5, then goes to 4 after 60 seconds.

     

       162
       +
           let create_session_governor_conf = GovernorConfigBuilder::default()

     

       163
        
               .per_second(60)

     

       164
        
               .burst_size(5)

     

       165
        
               .finish()

     

       166
       +
               .expect("failed to create governor config. this should not happen and is a bug");

     

       167
       +
       

     

       168
       +
           // Create a second config with the same settings for the other endpoint

     

       169
       +
           let sign_in_governor_conf = GovernorConfigBuilder::default()

     

       170
       +
               .per_second(60)

     

       171
       +
               .burst_size(5)

     

       172
       +
               .finish()

     

       173
       +
               .expect("failed to create governor config. this should not happen and is a bug");

     

       174
       +
       

     

       175
       +
           let create_session_governor_limiter = create_session_governor_conf.limiter().clone();

     

       176
       +
           let sign_in_governor_limiter = sign_in_governor_conf.limiter().clone();

     

       177
        
           let interval = Duration::from_secs(60);

     

       178
        
           // a separate background task to clean up

     

       179
        
           std::thread::spawn(move || {

     

       180
        
               loop {

     

       181
        
                   std::thread::sleep(interval);

     

       182
       +
                   create_session_governor_limiter.retain_recent();

     

       183
       +
                   sign_in_governor_limiter.retain_recent();

     

       184
        
               }

     

       185
        
           });

     

       186
        
       

     
···

       199
        
                   "/xrpc/com.atproto.server.updateEmail",

     

       200
        
                   post(update_email).layer(ax_middleware::from_fn(middleware::extract_did)),

     

       201
        
               )

     

       202
       +
               .route(

     

       203
       +
                   "/@atproto/oauth-provider/~api/sign-in",

     

       204
       +
                   post(sign_in).layer(GovernorLayer::new(sign_in_governor_conf)),

     

       205
       +
               )

     

       206
        
               .route(

     

       207
        
                   "/xrpc/com.atproto.server.createSession",

     

       208
       +
                   post(create_session.layer(GovernorLayer::new(create_session_governor_conf))),

     

       209
        
               )

     

       210
        
               .layer(CompressionLayer::new())

     

       211
        
               .layer(cors)

     

       212
        
               .with_state(state);

     

       213
        
       

     

       214
       +
           let host = env::var("GATEKEEPER_HOST").unwrap_or_else(|_| "127.0.0.1".to_string());

     

       215
       +
           let port: u16 = env::var("GATEKEEPER_PORT")

     

       216
        
               .ok()

     

       217
        
               .and_then(|s| s.parse().ok())

     

       218
        
               .unwrap_or(8080);

     
···

       229
        
           .with_graceful_shutdown(shutdown_signal());

     

       230
        
       

     

       231
        
           if let Err(err) = server.await {

     

       232
       +
               log::error!("server error:{err}");

     

       233
        
           }

     

       234
        
       

     

       235
        
           Ok(())

+19 -34

src/middleware.rs

···

       1
       -
       use crate::xrpc::helpers::json_error_response;

     

       2
        
       use axum::extract::Request;

     

       3
        
       use axum::http::{HeaderMap, StatusCode};

     

       4
        
       use axum::middleware::Next;

     
···

       7
        
       use jwt_compact::{AlgorithmExt, Claims, Token, UntrustedToken, ValidationError};

     

       8
        
       use serde::{Deserialize, Serialize};

     

       9
        
       use std::env;

     

       0
        
       
     

       10
        
       

     

       11
        
       #[derive(Clone, Debug)]

     

       12
        
       pub struct Did(pub Option<String>);

     
···

       22
        
           match token {

     

       23
        
               Ok(token) => {

     

       24
        
                   match token {

     

       25
       -
                       None => {

     

       26
       -
                           return json_error_response(

     

       27
       -
                               StatusCode::BAD_REQUEST,

     

       28
       -
                               "TokenRequired",

     

       29
       -
                               "",

     

       30
       -
                           ).unwrap();

     

       31
       -
                       }

     

       32
        
                       Some(token) => {

     

       33
        
                           let token = UntrustedToken::new(&token);

     

       34
       -
                           //Doing weird unwraps cause I can't do Result for middleware?

     

       35
        
                           if token.is_err() {

     

       36
       -
                               return json_error_response(

     

       37
       -
                                   StatusCode::BAD_REQUEST,

     

       38
       -
                                   "TokenRequired",

     

       39
       -
                                   "",

     

       40
       -
                               ).unwrap();

     

       41
        
                           }

     

       42
       -
                           let parsed_token = token.unwrap();

     

       43
        
                           let claims: Result<Claims<TokenClaims>, ValidationError> =

     

       44
        
                               parsed_token.deserialize_claims_unchecked();

     

       45
        
                           if claims.is_err() {

     

       46
       -
                               return json_error_response(

     

       47
       -
                                   StatusCode::BAD_REQUEST,

     

       48
       -
                                   "TokenRequired",

     

       49
       -
                                   "",

     

       50
       -
                               ).unwrap();

     

       51
        
                           }

     

       52
        
       

     

       53
       -
                           let key = Hs256Key::new(env::var("PDS_JWT_SECRET").unwrap());

     

       0
        
       
     

       0
        
       
     

       54
        
                           let token: Result<Token<TokenClaims>, ValidationError> =

     

       55
        
                               Hs256.validator(&key).validate(&parsed_token);

     

       56
        
                           if token.is_err() {

     

       57
       -
                               return json_error_response(

     

       58
       -
                                   StatusCode::BAD_REQUEST,

     

       59
       -
                                   "InvalidToken",

     

       60
       -
                                   "",

     

       61
       -
                               ).unwrap();

     

       62
        
                           }

     

       63
       -
                           let token = token.unwrap();

     

       64
        
                           //Not going to worry about expiration since it still goes to the PDS

     

       65
       -
       

     

       66
        
                           req.extensions_mut()

     

       67
        
                               .insert(Did(Some(token.claims().custom.sub.clone())));

     

       68
        
                           next.run(req).await

     

       69
        
                       }

     

       70
        
                   }

     

       71
        
               }

     

       72
       -
               Err(_) => {

     

       73
       -
                   return json_error_response(

     

       74
       -
                       StatusCode::BAD_REQUEST,

     

       75
       -
                       "InvalidToken",

     

       76
       -
                       "",

     

       77
       -
                   ).unwrap();

     

       78
        
               }

     

       79
        
           }

     

       80
        
       }

···

       1
       +
       use crate::helpers::json_error_response;

     

       2
        
       use axum::extract::Request;

     

       3
        
       use axum::http::{HeaderMap, StatusCode};

     

       4
        
       use axum::middleware::Next;

     
···

       7
        
       use jwt_compact::{AlgorithmExt, Claims, Token, UntrustedToken, ValidationError};

     

       8
        
       use serde::{Deserialize, Serialize};

     

       9
        
       use std::env;

     

       10
       +
       use tracing::log;

     

       11
        
       

     

       12
        
       #[derive(Clone, Debug)]

     

       13
        
       pub struct Did(pub Option<String>);

     
···

       23
        
           match token {

     

       24
        
               Ok(token) => {

     

       25
        
                   match token {

     

       26
       +
                       None => json_error_response(StatusCode::BAD_REQUEST, "TokenRequired", "")

     

       27
       +
                           .expect("Error creating an error response"),

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       28
        
                       Some(token) => {

     

       29
        
                           let token = UntrustedToken::new(&token);

     

       0
        
       
     

       30
        
                           if token.is_err() {

     

       31
       +
                               return json_error_response(StatusCode::BAD_REQUEST, "TokenRequired", "")

     

       32
       +
                                   .expect("Error creating an error response");

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       33
        
                           }

     

       34
       +
                           let parsed_token = token.expect("Already checked for error");

     

       35
        
                           let claims: Result<Claims<TokenClaims>, ValidationError> =

     

       36
        
                               parsed_token.deserialize_claims_unchecked();

     

       37
        
                           if claims.is_err() {

     

       38
       +
                               return json_error_response(StatusCode::BAD_REQUEST, "TokenRequired", "")

     

       39
       +
                                   .expect("Error creating an error response");

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       40
        
                           }

     

       41
        
       

     

       42
       +
                           let key = Hs256Key::new(

     

       43
       +
                               env::var("PDS_JWT_SECRET").expect("PDS_JWT_SECRET not set in the pds.env"),

     

       44
       +
                           );

     

       45
        
                           let token: Result<Token<TokenClaims>, ValidationError> =

     

       46
        
                               Hs256.validator(&key).validate(&parsed_token);

     

       47
        
                           if token.is_err() {

     

       48
       +
                               return json_error_response(StatusCode::BAD_REQUEST, "InvalidToken", "")

     

       49
       +
                                   .expect("Error creating an error response");

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       50
        
                           }

     

       51
       +
                           let token = token.expect("Already checked for error,");

     

       52
        
                           //Not going to worry about expiration since it still goes to the PDS

     

       0
        
       
     

       53
        
                           req.extensions_mut()

     

       54
        
                               .insert(Did(Some(token.claims().custom.sub.clone())));

     

       55
        
                           next.run(req).await

     

       56
        
                       }

     

       57
        
                   }

     

       58
        
               }

     

       59
       +
               Err(err) => {

     

       60
       +
                   log::error!("Error extracting token: {err}");

     

       61
       +
                   json_error_response(StatusCode::BAD_REQUEST, "InvalidToken", "")

     

       62
       +
                       .expect("Error creating an error response")

     

       0
        
       
     

       0
        
       
     

       63
        
               }

     

       64
        
           }

     

       65
        
       }

+141

src/oauth_provider.rs

···

       1
       +
       use crate::AppState;

     

       2
       +
       use crate::helpers::{AuthResult, oauth_json_error_response, preauth_check};

     

       3
       +
       use axum::body::Body;

     

       4
       +
       use axum::extract::State;

     

       5
       +
       use axum::http::header::CONTENT_TYPE;

     

       6
       +
       use axum::http::{HeaderMap, HeaderName, HeaderValue, StatusCode};

     

       7
       +
       use axum::response::{IntoResponse, Response};

     

       8
       +
       use axum::{Json, extract};

     

       9
       +
       use serde::{Deserialize, Serialize};

     

       10
       +
       use tracing::log;

     

       11
       +
       

     

       12
       +
       #[derive(Serialize, Deserialize, Clone)]

     

       13
       +
       pub struct SignInRequest {

     

       14
       +
           pub username: String,

     

       15
       +
           pub password: String,

     

       16
       +
           pub remember: bool,

     

       17
       +
           pub locale: String,

     

       18
       +
           #[serde(skip_serializing_if = "Option::is_none", rename = "emailOtp")]

     

       19
       +
           pub email_otp: Option<String>,

     

       20
       +
       }

     

       21
       +
       

     

       22
       +
       pub async fn sign_in(

     

       23
       +
           State(state): State<AppState>,

     

       24
       +
           headers: HeaderMap,

     

       25
       +
           Json(mut payload): extract::Json<SignInRequest>,

     

       26
       +
       ) -> Result<Response<Body>, StatusCode> {

     

       27
       +
           let identifier = payload.username.clone();

     

       28
       +
           let password = payload.password.clone();

     

       29
       +
           let auth_factor_token = payload.email_otp.clone();

     

       30
       +
       

     

       31
       +
           match preauth_check(&state, &identifier, &password, auth_factor_token, true).await {

     

       32
       +
               Ok(result) => match result {

     

       33
       +
                   AuthResult::WrongIdentityOrPassword => oauth_json_error_response(

     

       34
       +
                       StatusCode::BAD_REQUEST,

     

       35
       +
                       "invalid_request",

     

       36
       +
                       "Invalid identifier or password",

     

       37
       +
                   ),

     

       38
       +
                   AuthResult::TwoFactorRequired(masked_email) => {

     

       39
       +
                       // Email sending step can be handled here if needed in the future.

     

       40
       +
       

     

       41
       +
                       // {"error":"second_authentication_factor_required","error_description":"emailOtp authentication factor required (hint: 2***0@p***m)","type":"emailOtp","hint":"2***0@p***m"}

     

       42
       +
                       let body_str = match serde_json::to_string(&serde_json::json!({

     

       43
       +
                           "error": "second_authentication_factor_required",

     

       44
       +
                           "error_description": format!("emailOtp authentication factor required (hint: {})", masked_email),

     

       45
       +
                           "type": "emailOtp",

     

       46
       +
                           "hint": masked_email,

     

       47
       +
                       })) {

     

       48
       +
                           Ok(s) => s,

     

       49
       +
                           Err(_) => return Err(StatusCode::BAD_REQUEST),

     

       50
       +
                       };

     

       51
       +
       

     

       52
       +
                       Response::builder()

     

       53
       +
                           .status(StatusCode::BAD_REQUEST)

     

       54
       +
                           .header(CONTENT_TYPE, "application/json")

     

       55
       +
                           .body(Body::from(body_str))

     

       56
       +
                           .map_err(|_| StatusCode::BAD_REQUEST)

     

       57
       +
                   }

     

       58
       +
                   AuthResult::ProxyThrough => {

     

       59
       +
                       //No 2FA or already passed

     

       60
       +
                       let uri = format!(

     

       61
       +
                           "{}{}",

     

       62
       +
                           state.pds_base_url, "/@atproto/oauth-provider/~api/sign-in"

     

       63
       +
                       );

     

       64
       +
       

     

       65
       +
                       let mut req = axum::http::Request::post(uri);

     

       66
       +
                       if let Some(req_headers) = req.headers_mut() {

     

       67
       +
                           // Copy headers but remove problematic ones. There was an issue with the PDS not parsing the body fully if i forwarded all headers

     

       68
       +
                           copy_filtered_headers(&headers, req_headers);

     

       69
       +
                           //Setting the content type to application/json manually

     

       70
       +
                           req_headers.insert(CONTENT_TYPE, HeaderValue::from_static("application/json"));

     

       71
       +
                       }

     

       72
       +
       

     

       73
       +
                       //Clears the email_otp because the pds will reject a request with it.

     

       74
       +
                       payload.email_otp = None;

     

       75
       +
                       let payload_bytes =

     

       76
       +
                           serde_json::to_vec(&payload).map_err(|_| StatusCode::BAD_REQUEST)?;

     

       77
       +
       

     

       78
       +
                       let req = req

     

       79
       +
                           .body(Body::from(payload_bytes))

     

       80
       +
                           .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       81
       +
       

     

       82
       +
                       let proxied = state

     

       83
       +
                           .reverse_proxy_client

     

       84
       +
                           .request(req)

     

       85
       +
                           .await

     

       86
       +
                           .map_err(|_| StatusCode::BAD_REQUEST)?

     

       87
       +
                           .into_response();

     

       88
       +
       

     

       89
       +
                       Ok(proxied)

     

       90
       +
                   }

     

       91
       +
                   //Ignoring the type of token check failure. Looks like oauth on the entry treads them the same.

     

       92
       +
                   AuthResult::TokenCheckFailed(_) => oauth_json_error_response(

     

       93
       +
                       StatusCode::BAD_REQUEST,

     

       94
       +
                       "invalid_request",

     

       95
       +
                       "Unable to sign-in due to an unexpected server error",

     

       96
       +
                   ),

     

       97
       +
               },

     

       98
       +
               Err(err) => {

     

       99
       +
                   log::error!(

     

       100
       +
                       "Error during pre-auth check. This happens on the create_session endpoint when trying to decide if the user has access:\n {err}"

     

       101
       +
                   );

     

       102
       +
                   oauth_json_error_response(

     

       103
       +
                       StatusCode::BAD_REQUEST,

     

       104
       +
                       "pds_gatekeeper_error",

     

       105
       +
                       "This error was not generated by the PDS, but PDS Gatekeeper. Please contact your PDS administrator for help and for them to review the server logs.",

     

       106
       +
                   )

     

       107
       +
               }

     

       108
       +
           }

     

       109
       +
       }

     

       110
       +
       

     

       111
       +
       fn is_disallowed_header(name: &HeaderName) -> bool {

     

       112
       +
           // possible problematic headers with proxying

     

       113
       +
           matches!(

     

       114
       +
               name.as_str(),

     

       115
       +
               "connection"

     

       116
       +
                   | "keep-alive"

     

       117
       +
                   | "proxy-authenticate"

     

       118
       +
                   | "proxy-authorization"

     

       119
       +
                   | "te"

     

       120
       +
                   | "trailer"

     

       121
       +
                   | "transfer-encoding"

     

       122
       +
                   | "upgrade"

     

       123
       +
                   | "host"

     

       124
       +
                   | "content-length"

     

       125
       +
                   | "content-encoding"

     

       126
       +
                   | "expect"

     

       127
       +
                   | "accept-encoding"

     

       128
       +
           )

     

       129
       +
       }

     

       130
       +
       

     

       131
       +
       fn copy_filtered_headers(src: &HeaderMap, dst: &mut HeaderMap) {

     

       132
       +
           for (name, value) in src.iter() {

     

       133
       +
               if is_disallowed_header(name) {

     

       134
       +
                   continue;

     

       135
       +
               }

     

       136
       +
               // Only copy valid headers

     

       137
       +
               if let Ok(hv) = HeaderValue::from_bytes(value.as_bytes()) {

     

       138
       +
                   dst.insert(name.clone(), hv);

     

       139
       +
               }

     

       140
       +
           }

     

       141
       +
       }

+66 -211

src/xrpc/com_atproto_server.rs

···

       1
        
       use crate::AppState;

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       2
        
       use crate::middleware::Did;

     

       3
       -
       use crate::xrpc::helpers::{ProxiedResult, json_error_response, proxy_get_json};

     

       4
        
       use axum::body::Body;

     

       5
        
       use axum::extract::State;

     

       6
        
       use axum::http::{HeaderMap, StatusCode};

     

       7
        
       use axum::response::{IntoResponse, Response};

     

       8
        
       use axum::{Extension, Json, debug_handler, extract, extract::Request};

     

       9
       -
       use axum_template::TemplateEngine;

     

       10
       -
       use lettre::message::{MultiPart, SinglePart, header};

     

       11
       -
       use lettre::{AsyncTransport, Message};

     

       12
        
       use serde::{Deserialize, Serialize};

     

       13
        
       use serde_json;

     

       14
       -
       use serde_json::Value;

     

       15
       -
       use serde_json::value::Map;

     

       16
        
       use tracing::log;

     

       17
        
       

     

       18
        
       #[derive(Serialize, Deserialize, Debug, Clone)]

     
···

       58
        
       pub struct CreateSessionRequest {

     

       59
        
           identifier: String,

     

       60
        
           password: String,

     

       61
       -
           auth_factor_token: String,

     

       62
       -
           allow_takendown: bool,

     

       63
       -
       }

     

       64
       -
       

     

       65
       -
       pub enum AuthResult {

     

       66
       -
           WrongIdentityOrPassword,

     

       67
       -
           TwoFactorRequired,

     

       68
       -
           TwoFactorFailed,

     

       69
       -
           /// User does not have 2FA enabled, or passes it

     

       70
       -
           ProxyThrough,

     

       71
       -
       }

     

       72
       -
       

     

       73
       -
       pub enum IdentifierType {

     

       74
       -
           Email,

     

       75
       -
           DID,

     

       76
       -
           Handle,

     

       77
       -
       }

     

       78
       -
       

     

       79
       -
       impl IdentifierType {

     

       80
       -
           fn what_is_it(identifier: String) -> Self {

     

       81
       -
               if identifier.contains("@") {

     

       82
       -
                   IdentifierType::Email

     

       83
       -
               } else if identifier.contains("did:") {

     

       84
       -
                   IdentifierType::DID

     

       85
       -
               } else {

     

       86
       -
                   IdentifierType::Handle

     

       87
       -
               }

     

       88
       -
           }

     

       89
       -
       }

     

       90
       -
       

     

       91
       -
       async fn verify_password(password: &str, password_scrypt: &str) -> Result<bool, StatusCode> {

     

       92
       -
           // Expected format: "salt:hash" where hash is hex of scrypt(password, salt, 64 bytes)

     

       93
       -
           let mut parts = password_scrypt.splitn(2, ':');

     

       94
       -
           let salt = match parts.next() {

     

       95
       -
               Some(s) if !s.is_empty() => s,

     

       96
       -
               _ => return Ok(false),

     

       97
       -
           };

     

       98
       -
           let stored_hash_hex = match parts.next() {

     

       99
       -
               Some(h) if !h.is_empty() => h,

     

       100
       -
               _ => return Ok(false),

     

       101
       -
           };

     

       102
       -
       

     

       103
       -
           //Sets up scrypt to mimic node's scrypt

     

       104
       -
           let params = match scrypt::Params::new(14, 8, 1, 64) {

     

       105
       -
               Ok(p) => p,

     

       106
       -
               Err(_) => return Ok(false),

     

       107
       -
           };

     

       108
       -
           let mut derived = [0u8; 64];

     

       109
       -
           if scrypt::scrypt(password.as_bytes(), salt.as_bytes(), &params, &mut derived).is_err() {

     

       110
       -
               return Ok(false);

     

       111
       -
           }

     

       112
       -
       

     

       113
       -
           let stored_bytes = match hex::decode(stored_hash_hex) {

     

       114
       -
               Ok(b) => b,

     

       115
       -
               Err(e) => {

     

       116
       -
                   log::error!("Error decoding stored hash: {}", e);

     

       117
       -
                   return Ok(false);

     

       118
       -
               }

     

       119
       -
           };

     

       120
       -
       

     

       121
       -
           Ok(derived.as_slice() == stored_bytes.as_slice())

     

       122
       -
       }

     

       123
       -
       

     

       124
       -
       async fn preauth_check(

     

       125
       -
           state: &AppState,

     

       126
       -
           identifier: &str,

     

       127
       -
           password: &str,

     

       128
       -
       ) -> Result<AuthResult, StatusCode> {

     

       129
       -
           // Determine identifier type

     

       130
       -
           let id_type = IdentifierType::what_is_it(identifier.to_string());

     

       131
       -
       

     

       132
       -
           // Query account DB for did and passwordScrypt based on identifier type

     

       133
       -
           let account_row: Option<(String, String, String)> = match id_type {

     

       134
       -
               IdentifierType::Email => sqlx::query_as::<_, (String, String, String)>(

     

       135
       -
                   "SELECT did, passwordScrypt, account.email FROM account WHERE email = ? LIMIT 1",

     

       136
       -
               )

     

       137
       -
               .bind(identifier)

     

       138
       -
               .fetch_optional(&state.account_pool)

     

       139
       -
               .await

     

       140
       -
               .map_err(|_| StatusCode::BAD_REQUEST)?,

     

       141
       -
               IdentifierType::Handle => sqlx::query_as::<_, (String, String, String)>(

     

       142
       -
                   "SELECT account.did, account.passwordScrypt, account.email

     

       143
       -
                        FROM actor

     

       144
       -
                        LEFT JOIN account ON actor.did = account.did

     

       145
       -
                        where actor.handle =? LIMIT 1",

     

       146
       -
               )

     

       147
       -
               .bind(identifier)

     

       148
       -
               .fetch_optional(&state.account_pool)

     

       149
       -
               .await

     

       150
       -
               .map_err(|_| StatusCode::BAD_REQUEST)?,

     

       151
       -
               IdentifierType::DID => sqlx::query_as::<_, (String, String, String)>(

     

       152
       -
                   "SELECT did, passwordScrypt, account.email FROM account WHERE did = ? LIMIT 1",

     

       153
       -
               )

     

       154
       -
               .bind(identifier)

     

       155
       -
               .fetch_optional(&state.account_pool)

     

       156
       -
               .await

     

       157
       -
               .map_err(|_| StatusCode::BAD_REQUEST)?,

     

       158
       -
           };

     

       159
       -
       

     

       160
       -
           if let Some((did, password_scrypt, email)) = account_row {

     

       161
       -
               // Check two-factor requirement for this DID in the gatekeeper DB

     

       162
       -
               let required_opt = sqlx::query_as::<_, (u8,)>(

     

       163
       -
                   "SELECT required FROM two_factor_accounts WHERE did = ? LIMIT 1",

     

       164
       -
               )

     

       165
       -
               .bind(&did)

     

       166
       -
               .fetch_optional(&state.pds_gatekeeper_pool)

     

       167
       -
               .await

     

       168
       -
               .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       169
       -
       

     

       170
       -
               let two_factor_required = match required_opt {

     

       171
       -
                   Some(row) => row.0 != 0,

     

       172
       -
                   None => false,

     

       173
       -
               };

     

       174
       -
       

     

       175
       -
               if two_factor_required {

     

       176
       -
                   // Verify password before proceeding to 2FA email step

     

       177
       -
                   let verified = verify_password(password, &password_scrypt).await?;

     

       178
       -
                   if !verified {

     

       179
       -
                       return Ok(AuthResult::WrongIdentityOrPassword);

     

       180
       -
                   }

     

       181
       -
                   let mut email_data = Map::new();

     

       182
       -
                   //TODO these need real values

     

       183
       -
                   let token = "test".to_string();

     

       184
       -
                   let handle = "baileytownsend.dev".to_string();

     

       185
       -
                   email_data.insert("token".to_string(), Value::from(token.clone()));

     

       186
       -
                   email_data.insert("handle".to_string(), Value::from(handle.clone()));

     

       187
       -
                   //TODO bad unwrap

     

       188
       -
                   let email_body = state

     

       189
       -
                       .template_engine

     

       190
       -
                       .render("two_factor_code.hbs", email_data)

     

       191
       -
                       .unwrap();

     

       192
       -
       

     

       193
       -
                   let email = Message::builder()

     

       194
       -
                       //TODO prob get the proper type in the state

     

       195
       -
                       .from(state.mailer_from.parse().unwrap())

     

       196
       -
                       .to(email.parse().unwrap())

     

       197
       -
                       .subject("Sign in to Bluesky")

     

       198
       -
                       .multipart(

     

       199
       -
                           MultiPart::alternative() // This is composed of two parts.

     

       200
       -
                               .singlepart(

     

       201
       -
                                   SinglePart::builder()

     

       202
       -
                                       .header(header::ContentType::TEXT_PLAIN)

     

       203
       -
                                       .body(format!("We received a sign-in request for the account @{}. Use the code: {} to sign in. If this wasn't you, we recommend taking steps to protect your account by changing your password at https://bsky.app/settings.", handle, token)), // Every message should have a plain text fallback.

     

       204
       -
                               )

     

       205
       -
                               .singlepart(

     

       206
       -
                                   SinglePart::builder()

     

       207
       -
                                       .header(header::ContentType::TEXT_HTML)

     

       208
       -
                                       .body(email_body),

     

       209
       -
                               ),

     

       210
       -
                       )

     

       211
       -
                       //TODO bad

     

       212
       -
                       .unwrap();

     

       213
       -
                   return match state.mailer.send(email).await {

     

       214
       -
                       Ok(_) => Ok(AuthResult::TwoFactorRequired),

     

       215
       -
                       Err(err) => {

     

       216
       -
                           log::error!("Error sending the 2FA email: {}", err);

     

       217
       -
                           Err(StatusCode::BAD_REQUEST)

     

       218
       -
                       }

     

       219
       -
                   };

     

       220
       -
               }

     

       221
       -
           }

     

       222
       -
       

     

       223
       -
           // No local 2FA requirement (or account not found)

     

       224
       -
           Ok(AuthResult::ProxyThrough)

     

       225
        
       }

     

       226
        
       

     

       227
        
       pub async fn create_session(

     
···

       231
        
       ) -> Result<Response<Body>, StatusCode> {

     

       232
        
           let identifier = payload.identifier.clone();

     

       233
        
           let password = payload.password.clone();

     

       0
        
       
     

       234
        
       

     

       235
        
           // Run the shared pre-auth logic to validate and check 2FA requirement

     

       236
       -
           match preauth_check(&state, &identifier, &password).await? {

     

       237
       -
               AuthResult::WrongIdentityOrPassword => json_error_response(

     

       238
       -
                   StatusCode::UNAUTHORIZED,

     

       239
       -
                   "AuthenticationRequired",

     

       240
       -
                   "Invalid identifier or password",

     

       241
       -
               ),

     

       242
       -
               AuthResult::TwoFactorRequired => {

     

       243
       -
                   // Email sending step can be handled here if needed in the future.

     

       244
       -
                   json_error_response(

     

       245
        
                       StatusCode::UNAUTHORIZED,

     

       246
       -
                       "AuthFactorTokenRequired",

     

       247
       -
                       "A sign in code has been sent to your email address",

     

       248
       -
                   )

     

       249
       -
               }

     

       250
       -
               AuthResult::TwoFactorFailed => {

     

       251
       -
                   //Not sure what the errors are for this response is yet

     

       252
       -
                   json_error_response(StatusCode::UNAUTHORIZED, "PLACEHOLDER", "PLACEHOLDER")

     

       253
       -
               }

     

       254
       -
               AuthResult::ProxyThrough => {

     

       255
       -
                   //No 2FA or already passed

     

       256
       -
                   let uri = format!(

     

       257
       -
                       "{}{}",

     

       258
       -
                       state.pds_base_url, "/xrpc/com.atproto.server.createSession"

     

       259
       -
                   );

     

       260
       -
       

     

       261
       -
                   let mut req = axum::http::Request::post(uri);

     

       262
       -
                   if let Some(req_headers) = req.headers_mut() {

     

       263
       -
                       req_headers.extend(headers.clone());

     

       264
        
                   }

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       265
        
       

     

       266
       -
                   let payload_bytes =

     

       267
       -
                       serde_json::to_vec(&payload).map_err(|_| StatusCode::BAD_REQUEST)?;

     

       268
       -
                   let req = req

     

       269
       -
                       .body(Body::from(payload_bytes))

     

       270
       -
                       .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       271
        
       

     

       272
       -
                   let proxied = state

     

       273
       -
                       .reverse_proxy_client

     

       274
       -
                       .request(req)

     

       275
       -
                       .await

     

       276
       -
                       .map_err(|_| StatusCode::BAD_REQUEST)?

     

       277
       -
                       .into_response();

     

       278
        
       

     

       279
       -
                   Ok(proxied)

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       280
        
               }

     

       281
        
           }

     

       282
        
       }

     
···

       290
        
       ) -> Result<Response<Body>, StatusCode> {

     

       291
        
           //If email auth is not set at all it is a update email address

     

       292
        
           let email_auth_not_set = payload.email_auth_factor.is_none();

     

       293
       -
           //If email aurth is set it is to either turn on or off 2fa

     

       294
        
           let email_auth_update = payload.email_auth_factor.unwrap_or(false);

     

       295
        
       

     

       296
        
           // Email update asked for

     
···

       350
        
               }

     

       351
        
           }

     

       352
        
       

     

       353
       -
           // Updating the acutal email address

     

       354
        
           let uri = format!(

     

       355
        
               "{}{}",

     

       356
        
               state.pds_base_url, "/xrpc/com.atproto.server.updateEmail"

···

       1
        
       use crate::AppState;

     

       2
       +
       use crate::helpers::{

     

       3
       +
           AuthResult, ProxiedResult, TokenCheckError, json_error_response, preauth_check, proxy_get_json,

     

       4
       +
       };

     

       5
        
       use crate::middleware::Did;

     

       0
        
       
     

       6
        
       use axum::body::Body;

     

       7
        
       use axum::extract::State;

     

       8
        
       use axum::http::{HeaderMap, StatusCode};

     

       9
        
       use axum::response::{IntoResponse, Response};

     

       10
        
       use axum::{Extension, Json, debug_handler, extract, extract::Request};

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       11
        
       use serde::{Deserialize, Serialize};

     

       12
        
       use serde_json;

     

       0
        
       
     

       0
        
       
     

       13
        
       use tracing::log;

     

       14
        
       

     

       15
        
       #[derive(Serialize, Deserialize, Debug, Clone)]

     
···

       55
        
       pub struct CreateSessionRequest {

     

       56
        
           identifier: String,

     

       57
        
           password: String,

     

       58
       +
           #[serde(skip_serializing_if = "Option::is_none")]

     

       59
       +
           auth_factor_token: Option<String>,

     

       60
       +
           #[serde(skip_serializing_if = "Option::is_none")]

     

       61
       +
           allow_takendown: Option<bool>,

     

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       62
        
       }

     

       63
        
       

     

       64
        
       pub async fn create_session(

     
···

       68
        
       ) -> Result<Response<Body>, StatusCode> {

     

       69
        
           let identifier = payload.identifier.clone();

     

       70
        
           let password = payload.password.clone();

     

       71
       +
           let auth_factor_token = payload.auth_factor_token.clone();

     

       72
        
       

     

       73
        
           // Run the shared pre-auth logic to validate and check 2FA requirement

     

       74
       +
           match preauth_check(&state, &identifier, &password, auth_factor_token, false).await {

     

       75
       +
               Ok(result) => match result {

     

       76
       +
                   AuthResult::WrongIdentityOrPassword => json_error_response(

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       77
        
                       StatusCode::UNAUTHORIZED,

     

       78
       +
                       "AuthenticationRequired",

     

       79
       +
                       "Invalid identifier or password",

     

       80
       +
                   ),

     

       81
       +
                   AuthResult::TwoFactorRequired(_) => {

     

       82
       +
                       // Email sending step can be handled here if needed in the future.

     

       83
       +
                       json_error_response(

     

       84
       +
                           StatusCode::UNAUTHORIZED,

     

       85
       +
                           "AuthFactorTokenRequired",

     

       86
       +
                           "A sign in code has been sent to your email address",

     

       87
       +
                       )

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       88
        
                   }

     

       89
       +
                   AuthResult::ProxyThrough => {

     

       90
       +
                       log::info!("Proxying through");

     

       91
       +
                       //No 2FA or already passed

     

       92
       +
                       let uri = format!(

     

       93
       +
                           "{}{}",

     

       94
       +
                           state.pds_base_url, "/xrpc/com.atproto.server.createSession"

     

       95
       +
                       );

     

       96
       +
       

     

       97
       +
                       let mut req = axum::http::Request::post(uri);

     

       98
       +
                       if let Some(req_headers) = req.headers_mut() {

     

       99
       +
                           req_headers.extend(headers.clone());

     

       100
       +
                       }

     

       101
        
       

     

       102
       +
                       let payload_bytes =

     

       103
       +
                           serde_json::to_vec(&payload).map_err(|_| StatusCode::BAD_REQUEST)?;

     

       104
       +
                       let req = req

     

       105
       +
                           .body(Body::from(payload_bytes))

     

       106
       +
                           .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       107
        
       

     

       108
       +
                       let proxied = state

     

       109
       +
                           .reverse_proxy_client

     

       110
       +
                           .request(req)

     

       111
       +
                           .await

     

       112
       +
                           .map_err(|_| StatusCode::BAD_REQUEST)?

     

       113
       +
                           .into_response();

     

       114
        
       

     

       115
       +
                       Ok(proxied)

     

       116
       +
                   }

     

       117
       +
                   AuthResult::TokenCheckFailed(err) => match err {

     

       118
       +
                       TokenCheckError::InvalidToken => {

     

       119
       +
                           json_error_response(StatusCode::BAD_REQUEST, "InvalidToken", "Token is invalid")

     

       120
       +
                       }

     

       121
       +
                       TokenCheckError::ExpiredToken => {

     

       122
       +
                           json_error_response(StatusCode::BAD_REQUEST, "ExpiredToken", "Token is expired")

     

       123
       +
                       }

     

       124
       +
                   },

     

       125
       +
               },

     

       126
       +
               Err(err) => {

     

       127
       +
                   log::error!(

     

       128
       +
                       "Error during pre-auth check. This happens on the create_session endpoint when trying to decide if the user has access:\n {err}"

     

       129
       +
                   );

     

       130
       +
                   json_error_response(

     

       131
       +
                       StatusCode::INTERNAL_SERVER_ERROR,

     

       132
       +
                       "InternalServerError",

     

       133
       +
                       "This error was not generated by the PDS, but PDS Gatekeeper. Please contact your PDS administrator for help and for them to review the server logs.",

     

       134
       +
                   )

     

       135
        
               }

     

       136
        
           }

     

       137
        
       }

     
···

       145
        
       ) -> Result<Response<Body>, StatusCode> {

     

       146
        
           //If email auth is not set at all it is a update email address

     

       147
        
           let email_auth_not_set = payload.email_auth_factor.is_none();

     

       148
       +
           //If email auth is set it is to either turn on or off 2fa

     

       149
        
           let email_auth_update = payload.email_auth_factor.unwrap_or(false);

     

       150
        
       

     

       151
        
           // Email update asked for

     
···

       205
        
               }

     

       206
        
           }

     

       207
        
       

     

       208
       +
           // Updating the actual email address by sending it on to the PDS

     

       209
        
           let uri = format!(

     

       210
        
               "{}{}",

     

       211
        
               state.pds_base_url, "/xrpc/com.atproto.server.updateEmail"

-150

src/xrpc/helpers.rs

···

       1
       -
       use axum::body::{Body, to_bytes};

     

       2
       -
       use axum::extract::Request;

     

       3
       -
       use axum::http::{HeaderMap, Method, StatusCode, Uri};

     

       4
       -
       use axum::http::header::CONTENT_TYPE;

     

       5
       -
       use axum::response::{IntoResponse, Response};

     

       6
       -
       use serde::de::DeserializeOwned;

     

       7
       -
       use tracing::error;

     

       8
       -
       

     

       9
       -
       use crate::AppState;

     

       10
       -
       

     

       11
       -
       /// The result of a proxied call that attempts to parse JSON.

     

       12
       -
       pub enum ProxiedResult<T> {

     

       13
       -
           /// Successfully parsed JSON body along with original response headers.

     

       14
       -
           Parsed { value: T, _headers: HeaderMap },

     

       15
       -
           /// Could not or should not parse: return the original (or rebuilt) response as-is.

     

       16
       -
           Passthrough(Response<Body>),

     

       17
       -
       }

     

       18
       -
       

     

       19
       -
       /// Proxy the incoming request to the PDS base URL plus the provided path and attempt to parse

     

       20
       -
       /// the successful response body as JSON into `T`.

     

       21
       -
       ///

     

       22
       -
       /// Behavior:

     

       23
       -
       /// - If the proxied response is non-200, returns Passthrough with the original response.

     

       24
       -
       /// - If the response is 200 but JSON parsing fails, returns Passthrough with the original body and headers.

     

       25
       -
       /// - If parsing succeeds, returns Parsed { value, headers }.

     

       26
       -
       pub async fn proxy_get_json<T>(

     

       27
       -
           state: &AppState,

     

       28
       -
           mut req: Request,

     

       29
       -
           path: &str,

     

       30
       -
       ) -> Result<ProxiedResult<T>, StatusCode>

     

       31
       -
       where

     

       32
       -
           T: DeserializeOwned,

     

       33
       -
       {

     

       34
       -
           let uri = format!("{}{}", state.pds_base_url, path);

     

       35
       -
           *req.uri_mut() = Uri::try_from(uri).map_err(|_| StatusCode::BAD_REQUEST)?;

     

       36
       -
       

     

       37
       -
           let result = state

     

       38
       -
               .reverse_proxy_client

     

       39
       -
               .request(req)

     

       40
       -
               .await

     

       41
       -
               .map_err(|_| StatusCode::BAD_REQUEST)?

     

       42
       -
               .into_response();

     

       43
       -
       

     

       44
       -
           if result.status() != StatusCode::OK {

     

       45
       -
               return Ok(ProxiedResult::Passthrough(result));

     

       46
       -
           }

     

       47
       -
       

     

       48
       -
           let response_headers = result.headers().clone();

     

       49
       -
           let body = result.into_body();

     

       50
       -
           let body_bytes = to_bytes(body, usize::MAX)

     

       51
       -
               .await

     

       52
       -
               .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       53
       -
       

     

       54
       -
           match serde_json::from_slice::<T>(&body_bytes) {

     

       55
       -
               Ok(value) => Ok(ProxiedResult::Parsed {

     

       56
       -
                   value,

     

       57
       -
                   _headers: response_headers,

     

       58
       -
               }),

     

       59
       -
               Err(err) => {

     

       60
       -
                   error!(%err, "failed to parse proxied JSON response; returning original body");

     

       61
       -
                   let mut builder = Response::builder().status(StatusCode::OK);

     

       62
       -
                   if let Some(headers) = builder.headers_mut() {

     

       63
       -
                       *headers = response_headers;

     

       64
       -
                   }

     

       65
       -
                   let resp = builder

     

       66
       -
                       .body(Body::from(body_bytes))

     

       67
       -
                       .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       68
       -
                   Ok(ProxiedResult::Passthrough(resp))

     

       69
       -
               }

     

       70
       -
           }

     

       71
       -
       }

     

       72
       -
       

     

       73
       -
       /// Proxy the incoming request as a POST to the PDS base URL plus the provided path and attempt to parse

     

       74
       -
       /// the successful response body as JSON into `T`.

     

       75
       -
       ///

     

       76
       -
       /// Behavior mirrors `proxy_get_json`:

     

       77
       -
       /// - If the proxied response is non-200, returns Passthrough with the original response.

     

       78
       -
       /// - If the response is 200 but JSON parsing fails, returns Passthrough with the original body and headers.

     

       79
       -
       /// - If parsing succeeds, returns Parsed { value, headers }.

     

       80
       -
       pub async fn _proxy_post_json<T>(

     

       81
       -
           state: &AppState,

     

       82
       -
           mut req: Request,

     

       83
       -
           path: &str,

     

       84
       -
       ) -> Result<ProxiedResult<T>, StatusCode>

     

       85
       -
       where

     

       86
       -
           T: DeserializeOwned,

     

       87
       -
       {

     

       88
       -
           let uri = format!("{}{}", state.pds_base_url, path);

     

       89
       -
           *req.uri_mut() = Uri::try_from(uri).map_err(|_| StatusCode::BAD_REQUEST)?;

     

       90
       -
           *req.method_mut() = Method::POST;

     

       91
       -
       

     

       92
       -
           let result = state

     

       93
       -
               .reverse_proxy_client

     

       94
       -
               .request(req)

     

       95
       -
               .await

     

       96
       -
               .map_err(|_| StatusCode::BAD_REQUEST)?

     

       97
       -
               .into_response();

     

       98
       -
       

     

       99
       -
           if result.status() != StatusCode::OK {

     

       100
       -
               return Ok(ProxiedResult::Passthrough(result));

     

       101
       -
           }

     

       102
       -
       

     

       103
       -
           let response_headers = result.headers().clone();

     

       104
       -
           let body = result.into_body();

     

       105
       -
           let body_bytes = to_bytes(body, usize::MAX)

     

       106
       -
               .await

     

       107
       -
               .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       108
       -
       

     

       109
       -
           match serde_json::from_slice::<T>(&body_bytes) {

     

       110
       -
               Ok(value) => Ok(ProxiedResult::Parsed {

     

       111
       -
                   value,

     

       112
       -
                   _headers: response_headers,

     

       113
       -
               }),

     

       114
       -
               Err(err) => {

     

       115
       -
                   error!(%err, "failed to parse proxied JSON response (POST); returning original body");

     

       116
       -
                   let mut builder = Response::builder().status(StatusCode::OK);

     

       117
       -
                   if let Some(headers) = builder.headers_mut() {

     

       118
       -
                       *headers = response_headers;

     

       119
       -
                   }

     

       120
       -
                   let resp = builder

     

       121
       -
                       .body(Body::from(body_bytes))

     

       122
       -
                       .map_err(|_| StatusCode::BAD_REQUEST)?;

     

       123
       -
                   Ok(ProxiedResult::Passthrough(resp))

     

       124
       -
               }

     

       125
       -
           }

     

       126
       -
       }

     

       127
       -
       

     

       128
       -
       

     

       129
       -
       /// Build a JSON error response with the required Content-Type header

     

       130
       -
       /// Content-Type: application/json;charset=utf-8

     

       131
       -
       /// Body shape: { "error": string, "message": string }

     

       132
       -
       pub fn json_error_response(

     

       133
       -
           status: StatusCode,

     

       134
       -
           error: impl Into<String>,

     

       135
       -
           message: impl Into<String>,

     

       136
       -
       ) -> Result<Response<Body>, StatusCode> {

     

       137
       -
           let body_str = match serde_json::to_string(&serde_json::json!({

     

       138
       -
               "error": error.into(),

     

       139
       -
               "message": message.into(),

     

       140
       -
           })) {

     

       141
       -
               Ok(s) => s,

     

       142
       -
               Err(_) => return Err(StatusCode::BAD_REQUEST),

     

       143
       -
           };

     

       144
       -
       

     

       145
       -
           Response::builder()

     

       146
       -
               .status(status)

     

       147
       -
               .header(CONTENT_TYPE, "application/json;charset=utf-8")

     

       148
       -
               .body(Body::from(body_str))

     

       149
       -
               .map_err(|_| StatusCode::BAD_REQUEST)

     

       150
       -
       }

-1

src/xrpc/mod.rs

···

       1
        
       pub mod com_atproto_server;

     

       2
       -
       pub mod helpers;

···

       1
        
       pub mod com_atproto_server;

     

       0