commit 8136a36b99a4e0a0450d642f3a78cc0cba269e5f · anil.recoil.org/ocaml-jmap

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bin/dune

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        (public_name fastmail-list)

     

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        (package jmap)

     

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        (modules fastmail_list)

     

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        (libraries jmap jmap_mail lwt.unix))

···

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        (public_name fastmail-list)

     

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        (package jmap)

     

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        (modules fastmail_list)

     

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        (libraries jmap jmap_mail lwt.unix logs logs.fmt))

+94 -15

bin/fastmail_list.ml

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        *

     

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        * This binary connects to the Fastmail JMAP API using an authentication token

     

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        * from the JMAP_API_TOKEN environment variable and lists the most recent 100

     

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        * emails with their subjects and sender details.

     

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        *

     

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        * Usage: 

     

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        *   JMAP_API_TOKEN=your_api_token ./fastmail_list

     

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        *)

     

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       open Lwt.Syntax

     
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       module Mail = Jmap_mail.Types

     

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       (** Prints the email details *)

     

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       let print_email (email : Mail.email) =

     

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         let sender = 

     

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           match email.from with

     

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           | Some (addr :: _) -> 

     
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           | None -> "<no subject>"

     

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         in

     

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         let date = email.received_at in

     

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         Printf.printf "%s | %s | %s\n" date sender subject

     

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       (** Main function *)

     

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       let main () =

     

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         match Sys.getenv_opt "JMAP_API_TOKEN" with

     

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         | None -> 

     

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             Printf.eprintf "Error: JMAP_API_TOKEN environment variable not set\n";

     

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             Printf.eprintf "Usage: JMAP_API_TOKEN=your_token ./fastmail_list\n";

     

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             exit 1

     

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         | Some token ->

     

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             Printf.printf "Using API token: %s\n" token;

     

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             (* Connect to Fastmail JMAP API *)

     

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             (* Check token format and print helpful messages *)

     

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             let formatted_token = token in

     

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             Printf.printf "\nFastmail API Instructions:\n";

     

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             Printf.printf "1. Get a token from: https://app.fastmail.com/settings/tokens\n";

     

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             Printf.printf "2. Create a new token with Mail scope (read/write)\n";

     

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             Printf.printf "3. Copy the full token (example: 3de40-5fg1h2-a1b2c3...)\n";

     

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             Printf.printf "4. Run: env JMAP_API_TOKEN=\"your_full_token\" opam exec -- dune exec bin/fastmail_list.exe\n\n";

     

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             Printf.printf "Note: This example is working correctly but needs a valid Fastmail token.\n\n";

     

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             let* result = login_with_token 

     

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               ~uri:"https://api.fastmail.com/jmap/session" 

     

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               ~api_token:formatted_token

     
···

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                           | Api.Authentication_error -> "Authentication error");

     

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                         Lwt.return 1

     

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                     | Ok emails ->

     

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                         Printf.printf "Listing the most recent %d emails in your inbox:\n" (List.length emails);

     

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                         Printf.printf "--------------------------------------------\n";

     

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                         List.iter print_email emails;

     

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                         Lwt.return 0

     

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       (** Program entry point *)

···

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        *

     

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        * This binary connects to the Fastmail JMAP API using an authentication token

     

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        * from the JMAP_API_TOKEN environment variable and lists the most recent 100

     

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        * emails with their subjects, sender details, and labels.

     

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        *

     

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        * Usage: 

     

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        *   JMAP_API_TOKEN=your_api_token ./fastmail_list [options]

     

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        *

     

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        * Options:

     

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        *   -unread       List only unread messages

     

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        *   -labels       Show labels/keywords associated with messages

     

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        *   -debug LEVEL  Set debug level (0-4, where 4 is most verbose)

     

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        *)

     

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       open Lwt.Syntax

     
···

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       module Mail = Jmap_mail.Types

     

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       (** Prints the email details *)

     

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       let print_email ~show_labels (email : Mail.email) =

     

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         let sender = 

     

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           match email.from with

     

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           | Some (addr :: _) -> 

     
···

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           | None -> "<no subject>"

     

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         in

     

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         let date = email.received_at in

     

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       +
         

     

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         (* Format labels/keywords if requested *)

     

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         let labels_str = 

     

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           if show_labels then

     

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             let active_keywords = 

     

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               List.filter_map (fun (keyword, active) -> 

     

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                 if active then Some (Jmap_mail.Json.string_of_keyword keyword) else None

     

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               ) email.keywords

     

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             in

     

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             if List.length active_keywords > 0 then

     

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               " [" ^ String.concat ", " active_keywords ^ "]"

     

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             else

     

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               ""

     

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           else

     

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             ""

     

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         in

     

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         Printf.printf "%s | %s | %s%s\n" date sender subject labels_str

     

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       +
       

     

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       (** Check if an email is unread *)

     

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       let is_unread (email : Mail.email) =

     

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         let is_unread_keyword = 

     

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           List.exists (fun (kw, active) -> 

     

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             kw = Mail.Unread && active

     

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           ) email.keywords

     

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         in

     

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         let is_not_seen = 

     

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           not (List.exists (fun (kw, active) -> 

     

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             kw = Mail.Seen && active

     

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           ) email.keywords)

     

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         in

     

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         is_unread_keyword || is_not_seen

     

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       (** Main function *)

     

       72
        
       let main () =

     

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         (* Parse command-line arguments *)

     

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         let unread_only = ref false in

     

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         let show_labels = ref false in

     

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         let debug_level = ref 0 in

     

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       +
         

     

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         let args = [

     

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           ("-unread", Arg.Set unread_only, "List only unread messages");

     

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           ("-labels", Arg.Set show_labels, "Show labels/keywords associated with messages");

     

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           ("-debug", Arg.Int (fun level -> debug_level := level), "Set debug level (0-4, where 4 is most verbose)");

     

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         ] in

     

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       +
         

     

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         let usage_msg = "Usage: JMAP_API_TOKEN=your_token fastmail_list [options]" in

     

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         Arg.parse args (fun _ -> ()) usage_msg;

     

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       +
         

     

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         (* Configure logging *)

     

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         init_logging ~level:!debug_level ~enable_logs:(!debug_level > 0) ~redact_sensitive:true ();

     

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       +
         

     

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         match Sys.getenv_opt "JMAP_API_TOKEN" with

     

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         | None -> 

     

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             Printf.eprintf "Error: JMAP_API_TOKEN environment variable not set\n";

     

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             Printf.eprintf "Usage: JMAP_API_TOKEN=your_token ./fastmail_list [options]\n";

     

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             Printf.eprintf "Options:\n";

     

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             Printf.eprintf "  -unread       List only unread messages\n";

     

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             Printf.eprintf "  -labels       Show labels/keywords associated with messages\n";

     

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             Printf.eprintf "  -debug LEVEL  Set debug level (0-4, where 4 is most verbose)\n";

     

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             exit 1

     

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         | Some token ->

     

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             (* Only print token info at Info level or higher *)

     

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             Logs.info (fun m -> m "Using API token: %s" (redact_token token));

     

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       +
             

     

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             (* Connect to Fastmail JMAP API *)

     

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             let formatted_token = token in

     

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       +
             

     

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             (* Only print instructions at Info level *)

     

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             let level = match Logs.level () with

     

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               | None -> 0

     

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               | Some Logs.Error -> 1

     

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               | Some Logs.Info -> 2 

     

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               | Some Logs.Debug -> 3

     

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               | _ -> 2

     

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             in

     

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             if level >= 2 then begin

     

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               Printf.printf "\nFastmail API Instructions:\n";

     

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               Printf.printf "1. Get a token from: https://app.fastmail.com/settings/tokens\n";

     

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               Printf.printf "2. Create a new token with Mail scope (read/write)\n";

     

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               Printf.printf "3. Copy the full token (example: 3de40-5fg1h2-a1b2c3...)\n";

     

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               Printf.printf "4. Run: env JMAP_API_TOKEN=\"your_full_token\" opam exec -- dune exec bin/fastmail_list.exe [options]\n\n";

     

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               Printf.printf "Note: This example is working correctly but needs a valid Fastmail token.\n\n";

     

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             end;

     

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             let* result = login_with_token 

     

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               ~uri:"https://api.fastmail.com/jmap/session" 

     

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               ~api_token:formatted_token

     
···

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                           | Api.Authentication_error -> "Authentication error");

     

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                         Lwt.return 1

     

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                     | Ok emails ->

     

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                         (* Filter emails if unread-only mode is enabled *)

     

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                         let filtered_emails = 

     

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                           if !unread_only then

     

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                             List.filter is_unread emails

     

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                           else 

     

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                             emails

     

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                         in

     

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                         Printf.printf "Listing %s %d emails in your inbox:\n" 

     

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                           (if !unread_only then "unread" else "the most recent")

     

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                           (List.length filtered_emails);

     

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                         Printf.printf "--------------------------------------------\n";

     

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                         List.iter (print_email ~show_labels:!show_labels) filtered_emails;

     

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                         Lwt.return 0

     

       205
        
       

     

       206
        
       (** Program entry point *)

+1 -1

lib/dune

···

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         (name jmap)

     

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         (public_name jmap)

     

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         (modules jmap)

     

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         (libraries str ezjsonm ptime cohttp cohttp-lwt-unix uri lwt))

     

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       (library

     

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         (name jmap_mail)

···

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         (name jmap)

     

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         (public_name jmap)

     

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         (modules jmap)

     

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         (libraries str ezjsonm ptime cohttp cohttp-lwt-unix uri lwt logs logs.fmt))

     

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       (library

     

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         (name jmap_mail)

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lib/jmap.ml

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        * https://datatracker.ietf.org/doc/html/rfc8620

     

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        *)

     

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       (** Module for managing JMAP capability URIs and other constants *)

     

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       module Capability = struct

     

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         (** Core JMAP capability URI *)

     
···

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           let open Cohttp_lwt_unix in

     

       449
        
           let headers = Header.add_list (Header.init ()) headers in

     

       450
        
           

     

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           (* Debug: print request details *)

     

       452
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           Printf.printf "\n===== HTTP REQUEST =====\n";

     

       453
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           Printf.printf "URI: %s\n" (Uri.to_string uri);

     

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           Printf.printf "METHOD: %s\n" method_;

     

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           Printf.printf "HEADERS:\n";

     

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           Header.iter (fun k v -> Printf.printf "  %s: %s\n" k v) headers;

     

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           Printf.printf "BODY:\n%s\n" body;

     

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           Printf.printf "======================\n\n";

     

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           Lwt.catch

     

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             (fun () ->

     
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               let* body_str = Cohttp_lwt.Body.to_string body in

     

       469
        
               let status = Response.status resp |> Code.code_of_status in

     

       470
        
               

     

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               (* Debug: print response details *)

     

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               Printf.printf "\n===== HTTP RESPONSE =====\n";

     

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               Printf.printf "STATUS: %d\n" status;

     

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               Printf.printf "HEADERS:\n";

     

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               Response.headers resp |> Header.iter (fun k v -> Printf.printf "  %s: %s\n" k v);

     

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               Printf.printf "BODY:\n%s\n" body_str;

     

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               Printf.printf "========================\n\n";

     

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               if status >= 200 && status < 300 then

     

       480
        
                 Lwt.return (Ok body_str)

     
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                 Lwt.return (Error (HTTP_error (status, body_str))))

     

       483
        
             (fun e -> 

     

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               let error_msg = Printexc.to_string e in

     

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               Printf.printf "\n===== HTTP ERROR =====\n%s\n======================\n\n" error_msg;

     

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               Lwt.return (Error (Connection_error error_msg)))

     

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       488
        
         (** Make a raw JMAP API request 

     
···

       499
        
               (* API token (bearer authentication) *)

     

       500
        
               "Bearer " ^ config.authentication_token

     

       501
        
           in

     

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           Printf.printf "Using authorization header: %s\n" auth_header;

     

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           let headers = [

     

       504
        
             ("Content-Type", "application/json");

     

       505
        
             ("Content-Length", string_of_int (String.length body));

     
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           match result with

     

       510
        
           | Ok response_body ->

     

       511
        
               (match parse_json_string response_body with

     

       512
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                | Ok json -> Lwt.return (parse_response json)

     

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                | Error e -> Lwt.return (Error e))

     

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           | Error e -> Lwt.return (Error e)

     

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         (** Parse a JSON object as a Session object *)

     

       517
        
         let parse_session_object json =

     
···

       577
        
             match (username, authentication_token, api_token) with

     

       578
        
             | (Some u, Some t, _) -> 

     

       579
        
                 let auth = "Basic " ^ Base64.encode_string (u ^ ":" ^ t) in

     

       580
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                 Printf.printf "Session using Basic auth: %s\n" auth;

     

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       581
        
                 [

     

       582
        
                   ("Content-Type", "application/json");

     

       583
        
                   ("Authorization", auth)

     

       584
        
                 ]

     

       585
        
             | (_, _, Some token) -> 

     

       586
        
                 let auth = "Bearer " ^ token in

     

       587
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                 Printf.printf "Session using Bearer auth: %s\n" auth;

     

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       588
        
                 [

     

       589
        
                   ("Content-Type", "application/json");

     

       590
        
                   ("Authorization", auth)

     
···

       596
        
           match result with

     

       597
        
           | Ok response_body ->

     

       598
        
               (match parse_json_string response_body with

     

       599
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                | Ok json -> Lwt.return (parse_session_object json)

     

       600
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                | Error e -> Lwt.return (Error e))

     

       601
       -
           | Error e -> Lwt.return (Error e)

     

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       603
        
         (** Upload a binary blob to the server

     

       604

···

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        * https://datatracker.ietf.org/doc/html/rfc8620

     

       4
        
        *)

     

       5
        
       

     

       6
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       (** Whether to redact sensitive information *)

     

       7
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       let should_redact_sensitive = ref true

     

       8
       +
       

     

       9
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       (** Initialize and configure logging for JMAP *)

     

       10
       +
       let init_logging ?(level=2) ?(enable_logs=true) ?(redact_sensitive=true) () =

     

       11
       +
         if enable_logs then begin

     

       12
       +
           Logs.set_reporter (Logs.format_reporter ());

     

       13
       +
           match level with

     

       14
       +
           | 0 -> Logs.set_level None

     

       15
       +
           | 1 -> Logs.set_level (Some Logs.Error)

     

       16
       +
           | 2 -> Logs.set_level (Some Logs.Info)

     

       17
       +
           | 3 -> Logs.set_level (Some Logs.Debug)

     

       18
       +
           | _ -> Logs.set_level (Some Logs.Debug)

     

       19
       +
         end else

     

       20
       +
           Logs.set_level None;

     

       21
       +
         should_redact_sensitive := redact_sensitive

     

       22
       +
       

     

       23
       +
       (** Redact sensitive data like tokens *)

     

       24
       +
       let redact_token ?(redact=true) token =

     

       25
       +
         if redact && !should_redact_sensitive && String.length token > 8 then

     

       26
       +
           let prefix = String.sub token 0 4 in

     

       27
       +
           let suffix = String.sub token (String.length token - 4) 4 in

     

       28
       +
           prefix ^ "..." ^ suffix

     

       29
       +
         else

     

       30
       +
           token

     

       31
       +
       

     

       32
       +
       (** Redact sensitive headers like Authorization *)

     

       33
       +
       let redact_headers headers =

     

       34
       +
         List.map (fun (k, v) ->

     

       35
       +
           if String.lowercase_ascii k = "authorization" then

     

       36
       +
             if !should_redact_sensitive then

     

       37
       +
               let parts = String.split_on_char ' ' v in

     

       38
       +
               match parts with

     

       39
       +
               | scheme :: token :: _ -> (k, scheme ^ " " ^ redact_token token)

     

       40
       +
               | _ -> (k, v)

     

       41
       +
             else (k, v)

     

       42
       +
           else (k, v)

     

       43
       +
         ) headers

     

       44
       +
       

     

       45
       +
       (* Initialize logging with defaults *)

     

       46
       +
       let () = init_logging ()

     

       47
       +
       

     

       48
        
       (** Module for managing JMAP capability URIs and other constants *)

     

       49
        
       module Capability = struct

     

       50
        
         (** Core JMAP capability URI *)

     
···

       490
        
           let open Cohttp_lwt_unix in

     

       491
        
           let headers = Header.add_list (Header.init ()) headers in

     

       492
        
           

     

       493
       +
           (* Log request details at debug level *)

     

       494
       +
           let header_list = Cohttp.Header.to_list headers in

     

       495
       +
           let redacted_headers = redact_headers header_list in

     

       496
       +
           Logs.debug (fun m -> 

     

       497
       +
             m "\n===== HTTP REQUEST =====\n\

     

       498
       +
                URI: %s\n\

     

       499
       +
                METHOD: %s\n\

     

       500
       +
                HEADERS:\n%s\n\

     

       501
       +
                BODY:\n%s\n\

     

       502
       +
                ======================\n"

     

       503
       +
               (Uri.to_string uri)

     

       504
       +
               method_

     

       505
       +
               (String.concat "\n" (List.map (fun (k, v) -> Printf.sprintf "  %s: %s" k v) redacted_headers))

     

       506
       +
               body);

     

       507
        
           

     

       508
        
           Lwt.catch

     

       509
        
             (fun () ->

     
···

       516
        
               let* body_str = Cohttp_lwt.Body.to_string body in

     

       517
        
               let status = Response.status resp |> Code.code_of_status in

     

       518
        
               

     

       519
       +
               (* Log response details at debug level *)

     

       520
       +
               let header_list = Cohttp.Header.to_list (Response.headers resp) in

     

       521
       +
               let redacted_headers = redact_headers header_list in

     

       522
       +
               Logs.debug (fun m -> 

     

       523
       +
                 m "\n===== HTTP RESPONSE =====\n\

     

       524
       +
                    STATUS: %d\n\

     

       525
       +
                    HEADERS:\n%s\n\

     

       526
       +
                    BODY:\n%s\n\

     

       527
       +
                    ======================\n"

     

       528
       +
                   status

     

       529
       +
                   (String.concat "\n" (List.map (fun (k, v) -> Printf.sprintf "  %s: %s" k v) redacted_headers))

     

       530
       +
                   body_str);

     

       531
        
               

     

       532
        
               if status >= 200 && status < 300 then

     

       533
        
                 Lwt.return (Ok body_str)

     
···

       535
        
                 Lwt.return (Error (HTTP_error (status, body_str))))

     

       536
        
             (fun e -> 

     

       537
        
               let error_msg = Printexc.to_string e in

     

       538
       +
               Logs.err (fun m -> m "%s" error_msg);

     

       539
        
               Lwt.return (Error (Connection_error error_msg)))

     

       540
        
       

     

       541
        
         (** Make a raw JMAP API request 

     
···

       552
        
               (* API token (bearer authentication) *)

     

       553
        
               "Bearer " ^ config.authentication_token

     

       554
        
           in

     

       555
       +
           

     

       556
       +
           (* Log auth header at debug level with redaction *)

     

       557
       +
           let redacted_header =

     

       558
       +
             if String.length config.username > 0 then

     

       559
       +
               "Basic " ^ redact_token (Base64.encode_string (config.username ^ ":" ^ config.authentication_token))

     

       560
       +
             else

     

       561
       +
               "Bearer " ^ redact_token config.authentication_token

     

       562
       +
           in

     

       563
       +
           Logs.debug (fun m -> m "Using authorization header: %s" redacted_header);

     

       564
       +
           

     

       565
        
           let headers = [

     

       566
        
             ("Content-Type", "application/json");

     

       567
        
             ("Content-Length", string_of_int (String.length body));

     
···

       571
        
           match result with

     

       572
        
           | Ok response_body ->

     

       573
        
               (match parse_json_string response_body with

     

       574
       +
                | Ok json -> 

     

       575
       +
                    Logs.debug (fun m -> m "Successfully parsed JSON response");

     

       576
       +
                    Lwt.return (parse_response json)

     

       577
       +
                | Error e -> 

     

       578
       +
                    let msg = match e with Parse_error m -> m | _ -> "unknown error" in

     

       579
       +
                    Logs.err (fun m -> m "Failed to parse response: %s" msg);

     

       580
       +
                    Lwt.return (Error e))

     

       581
       +
           | Error e -> 

     

       582
       +
               (match e with

     

       583
       +
                | Connection_error msg -> Logs.err (fun m -> m "Connection error: %s" msg)

     

       584
       +
                | HTTP_error (code, _) -> Logs.err (fun m -> m "HTTP error %d" code)

     

       585
       +
                | Parse_error msg -> Logs.err (fun m -> m "Parse error: %s" msg)

     

       586
       +
                | Authentication_error -> Logs.err (fun m -> m "Authentication error"));

     

       587
       +
               Lwt.return (Error e)

     

       588
        
       

     

       589
        
         (** Parse a JSON object as a Session object *)

     

       590
        
         let parse_session_object json =

     
···

       650
        
             match (username, authentication_token, api_token) with

     

       651
        
             | (Some u, Some t, _) -> 

     

       652
        
                 let auth = "Basic " ^ Base64.encode_string (u ^ ":" ^ t) in

     

       653
       +
                 let redacted_auth = "Basic " ^ redact_token (Base64.encode_string (u ^ ":" ^ t)) in

     

       654
       +
                 Logs.info (fun m -> m "Session using Basic auth: %s" redacted_auth);

     

       655
        
                 [

     

       656
        
                   ("Content-Type", "application/json");

     

       657
        
                   ("Authorization", auth)

     

       658
        
                 ]

     

       659
        
             | (_, _, Some token) -> 

     

       660
        
                 let auth = "Bearer " ^ token in

     

       661
       +
                 let redacted_token = redact_token token in

     

       662
       +
                 Logs.info (fun m -> m "Session using Bearer auth: %s" ("Bearer " ^ redacted_token));

     

       663
        
                 [

     

       664
        
                   ("Content-Type", "application/json");

     

       665
        
                   ("Authorization", auth)

     
···

       671
        
           match result with

     

       672
        
           | Ok response_body ->

     

       673
        
               (match parse_json_string response_body with

     

       674
       +
                | Ok json -> 

     

       675
       +
                    Logs.debug (fun m -> m "Successfully parsed session response");

     

       676
       +
                    Lwt.return (parse_session_object json)

     

       677
       +
                | Error e -> 

     

       678
       +
                    let msg = match e with Parse_error m -> m | _ -> "unknown error" in

     

       679
       +
                    Logs.err (fun m -> m "Failed to parse session response: %s" msg);

     

       680
       +
                    Lwt.return (Error e))

     

       681
       +
           | Error e -> 

     

       682
       +
               let err_msg = match e with

     

       683
       +
                | Connection_error msg -> "Connection error: " ^ msg

     

       684
       +
                | HTTP_error (code, _) -> Printf.sprintf "HTTP error %d" code

     

       685
       +
                | Parse_error msg -> "Parse error: " ^ msg

     

       686
       +
                | Authentication_error -> "Authentication error"

     

       687
       +
               in

     

       688
       +
               Logs.err (fun m -> m "Failed to get session: %s" err_msg);

     

       689
       +
               Lwt.return (Error e)

     

       690
        
       

     

       691
        
         (** Upload a binary blob to the server

     

       692

lib/jmap.mli

···

       3
        
        * https://datatracker.ietf.org/doc/html/rfc8620

     

       4
        
        *)

     

       5
        
       

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       6
        
       (** Module for managing JMAP capability URIs and other constants *)

     

       7
        
       module Capability : sig

     

       8
        
         (** Core JMAP capability URI *)

···

       3
        
        * https://datatracker.ietf.org/doc/html/rfc8620

     

       4
        
        *)

     

       5
        
       

     

       6
       +
       (** Initialize and configure logging for JMAP *)

     

       7
       +
       val init_logging : ?level:int -> ?enable_logs:bool -> ?redact_sensitive:bool -> unit -> unit

     

       8
       +
       

     

       9
       +
       (** Redact sensitive data like tokens *)

     

       10
       +
       val redact_token : ?redact:bool -> string -> string

     

       11
       +
       

     

       12
        
       (** Module for managing JMAP capability URIs and other constants *)

     

       13
        
       module Capability : sig

     

       14
        
         (** Core JMAP capability URI *)