nel.pet
1package xrpc
2
3import (
4 "encoding/json"
5 "log/slog"
6 "net/http"
7 "strings"
8
9 securejoin "github.com/cyphar/filepath-securejoin"
10 "tangled.org/core/api/tangled"
11 "tangled.org/core/idresolver"
12 "tangled.org/core/jetstream"
13 "tangled.org/core/knotserver/config"
14 "tangled.org/core/knotserver/db"
15 "tangled.org/core/notifier"
16 "tangled.org/core/rbac"
17 xrpcerr "tangled.org/core/xrpc/errors"
18 "tangled.org/core/xrpc/serviceauth"
19
20 "github.com/go-chi/chi/v5"
21)
22
23type Xrpc struct {
24 Config *config.Config
25 Db *db.DB
26 Ingester *jetstream.JetstreamClient
27 Enforcer *rbac.Enforcer
28 Logger *slog.Logger
29 Notifier *notifier.Notifier
30 Resolver *idresolver.Resolver
31 ServiceAuth *serviceauth.ServiceAuth
32}
33
34func (x *Xrpc) Router() http.Handler {
35 r := chi.NewRouter()
36
37 r.Group(func(r chi.Router) {
38 r.Use(x.ServiceAuth.VerifyServiceAuth)
39
40 r.Post("/"+tangled.RepoSetDefaultBranchNSID, x.SetDefaultBranch)
41 r.Post("/"+tangled.RepoCreateNSID, x.CreateRepo)
42 r.Post("/"+tangled.RepoDeleteNSID, x.DeleteRepo)
43 r.Post("/"+tangled.RepoForkStatusNSID, x.ForkStatus)
44 r.Post("/"+tangled.RepoForkSyncNSID, x.ForkSync)
45 r.Post("/"+tangled.RepoHiddenRefNSID, x.HiddenRef)
46 r.Post("/"+tangled.RepoMergeNSID, x.Merge)
47 })
48
49 // merge check is an open endpoint
50 //
51 // TODO: should we constrain this more?
52 // - we can calculate on PR submit/resubmit/gitRefUpdate etc.
53 // - use ETags on clients to keep requests to a minimum
54 r.Post("/"+tangled.RepoMergeCheckNSID, x.MergeCheck)
55
56 // repo query endpoints (no auth required)
57 r.Get("/"+tangled.RepoTreeNSID, x.RepoTree)
58 r.Get("/"+tangled.RepoLogNSID, x.RepoLog)
59 r.Get("/"+tangled.RepoBranchesNSID, x.RepoBranches)
60 r.Get("/"+tangled.RepoTagsNSID, x.RepoTags)
61 r.Get("/"+tangled.RepoBlobNSID, x.RepoBlob)
62 r.Get("/"+tangled.RepoDiffNSID, x.RepoDiff)
63 r.Get("/"+tangled.RepoCompareNSID, x.RepoCompare)
64 r.Get("/"+tangled.RepoGetDefaultBranchNSID, x.RepoGetDefaultBranch)
65 r.Get("/"+tangled.RepoBranchNSID, x.RepoBranch)
66 r.Get("/"+tangled.RepoArchiveNSID, x.RepoArchive)
67 r.Get("/"+tangled.RepoLanguagesNSID, x.RepoLanguages)
68
69 // knot query endpoints (no auth required)
70 r.Get("/"+tangled.KnotListKeysNSID, x.ListKeys)
71 r.Get("/"+tangled.KnotVersionNSID, x.Version)
72
73 // service query endpoints (no auth required)
74 r.Get("/"+tangled.OwnerNSID, x.Owner)
75
76 return r
77}
78
79// parseRepoParam parses a repo parameter in 'did/repoName' format and returns
80// the full repository path on disk
81func (x *Xrpc) parseRepoParam(repo string) (string, error) {
82 if repo == "" {
83 return "", xrpcerr.NewXrpcError(
84 xrpcerr.WithTag("InvalidRequest"),
85 xrpcerr.WithMessage("missing repo parameter"),
86 )
87 }
88
89 // Parse repo string (did/repoName format)
90 parts := strings.SplitN(repo, "/", 2)
91 if len(parts) != 2 {
92 return "", xrpcerr.NewXrpcError(
93 xrpcerr.WithTag("InvalidRequest"),
94 xrpcerr.WithMessage("invalid repo format, expected 'did/repoName'"),
95 )
96 }
97
98 did := parts[0]
99 repoName := parts[1]
100
101 // Construct repository path using the same logic as didPath
102 didRepoPath, err := securejoin.SecureJoin(did, repoName)
103 if err != nil {
104 return "", xrpcerr.RepoNotFoundError
105 }
106
107 repoPath, err := securejoin.SecureJoin(x.Config.Repo.ScanPath, didRepoPath)
108 if err != nil {
109 return "", xrpcerr.RepoNotFoundError
110 }
111
112 return repoPath, nil
113}
114
115func writeError(w http.ResponseWriter, e xrpcerr.XrpcError, status int) {
116 w.Header().Set("Content-Type", "application/json")
117 w.WriteHeader(status)
118 json.NewEncoder(w).Encode(e)
119}
120
121func writeJson(w http.ResponseWriter, response any) {
122 w.Header().Set("Content-Type", "application/json")
123 if err := json.NewEncoder(w).Encode(response); err != nil {
124 writeError(w, xrpcerr.GenericError(err), http.StatusInternalServerError)
125 return
126 }
127}