internal/store/repos.go
299 lines · 9401 bytes
1package store
2
3import (
4 "database/sql"
5 "encoding/json"
6 "errors"
7 "fmt"
8 "strings"
9)
10
11type Repo struct {
12 ID int64
13 OwnerKind string // user | org
14 OwnerID int64
15 OwnerName string // resolved for display and disk paths
16 Name string
17 Visibility string // public | private
18 DefaultBranch string
19 ForkOf int64 // 0 when not a fork
20 Settings RepoSettings
21}
22
23type RepoSettings struct {
24 ProtectedBranches []string `json:"protected_branches,omitempty"`
25 RequireSignedCommits bool `json:"require_signed_commits,omitempty"`
26 RequireChecks bool `json:"require_checks,omitempty"`
27 RequireApprovals int `json:"require_approvals,omitempty"`
28 RequireResolved bool `json:"require_resolved,omitempty"`
29 GitDaemon bool `json:"git_daemon,omitempty"`
30 Archived bool `json:"archived,omitempty"`
31 Website string `json:"website,omitempty"`
32}
33
34// Path returns the canonical owner/name form.
35func (r Repo) Path() string { return r.OwnerName + "/" + r.Name }
36
37func (s *Store) CreateRepo(ownerKind string, ownerID int64, name, visibility string) (int64, error) {
38 res, err := s.DB.Exec(
39 "INSERT INTO repos (owner_kind, owner_id, name, visibility) VALUES (?, ?, ?, ?)",
40 ownerKind, ownerID, name, visibility)
41 if err != nil {
42 if isUniqueErr(err) {
43 return 0, fmt.Errorf("repository %q already exists", name)
44 }
45 return 0, err
46 }
47 return res.LastInsertId()
48}
49
50// repoSelect resolves the owner name from whichever table owns the repo.
51const repoSelect = `
52 SELECT r.id, r.owner_kind, r.owner_id, COALESCE(u.username, o.name),
53 r.name, r.visibility, r.default_branch, COALESCE(r.fork_of, 0), r.settings_json
54 FROM repos r
55 LEFT JOIN users u ON r.owner_kind = 'user' AND u.id = r.owner_id
56 LEFT JOIN orgs o ON r.owner_kind = 'org' AND o.id = r.owner_id`
57
58func scanRepo(row interface{ Scan(...any) error }) (Repo, error) {
59 var r Repo
60 var settingsJSON string
61 err := row.Scan(&r.ID, &r.OwnerKind, &r.OwnerID, &r.OwnerName, &r.Name, &r.Visibility, &r.DefaultBranch, &r.ForkOf, &settingsJSON)
62 if err != nil {
63 return r, err
64 }
65 if err := json.Unmarshal([]byte(settingsJSON), &r.Settings); err != nil {
66 return r, fmt.Errorf("repo %d settings: %w", r.ID, err)
67 }
68 return r, nil
69}
70
71// RepoByPath resolves "owner/name"; the owner may be a user or an org.
72func (s *Store) RepoByPath(path string) (Repo, error) {
73 owner, name, ok := strings.Cut(strings.TrimSuffix(strings.TrimPrefix(path, "/"), ".git"), "/")
74 if !ok || owner == "" || name == "" || strings.Contains(name, "/") {
75 return Repo{}, fmt.Errorf("%w: repository path must be owner/name", ErrNotFound)
76 }
77 r, err := scanRepo(s.DB.QueryRow(
78 repoSelect+" WHERE COALESCE(u.username, o.name) = ? AND r.name = ?", owner, name))
79 if errors.Is(err, sql.ErrNoRows) {
80 return Repo{}, ErrNotFound
81 }
82 return r, err
83}
84
85func (s *Store) SetRepoSettings(repoID int64, settings RepoSettings) error {
86 raw, err := json.Marshal(settings)
87 if err != nil {
88 return err
89 }
90 _, err = s.DB.Exec("UPDATE repos SET settings_json = ? WHERE id = ?", string(raw), repoID)
91 return err
92}
93
94func (s *Store) SetForkOf(repoID, parentID int64) error {
95 _, err := s.DB.Exec("UPDATE repos SET fork_of = ? WHERE id = ?", parentID, repoID)
96 return err
97}
98
99func (s *Store) DeleteRepo(repoID int64) error {
100 res, err := s.DB.Exec("DELETE FROM repos WHERE id = ?", repoID)
101 if err != nil {
102 return err
103 }
104 if n, _ := res.RowsAffected(); n == 0 {
105 return ErrNotFound
106 }
107 return nil
108}
109
110// ListReposForUser returns repos the user owns, reaches through an org
111// (unless the org scopes members to 'none'), has an explicit grant on, or
112// reaches through a team.
113func (s *Store) ListReposForUser(userID int64) ([]Repo, error) {
114 rows, err := s.DB.Query(repoSelect+`
115 LEFT JOIN repo_access a ON a.repo_id = r.id AND a.subject_kind = 'user' AND a.subject_id = ?
116 LEFT JOIN org_members m ON r.owner_kind = 'org' AND m.org_id = r.owner_id AND m.user_id = ?
117 LEFT JOIN orgs og ON r.owner_kind = 'org' AND og.id = r.owner_id
118 WHERE (r.owner_kind = 'user' AND r.owner_id = ?)
119 OR a.subject_id IS NOT NULL
120 OR (m.user_id IS NOT NULL AND (m.role = 'admin' OR og.members_role <> 'none'))
121 OR EXISTS (SELECT 1 FROM team_repos tr
122 JOIN team_members tm ON tm.team_id = tr.team_id AND tm.user_id = ?
123 WHERE tr.repo_id = r.id)
124 GROUP BY r.id
125 ORDER BY 4, r.name`, userID, userID, userID, userID)
126 if err != nil {
127 return nil, err
128 }
129 defer rows.Close()
130 var out []Repo
131 for rows.Next() {
132 r, err := scanRepo(rows)
133 if err != nil {
134 return nil, err
135 }
136 out = append(out, r)
137 }
138 return out, rows.Err()
139}
140
141// AccessRole returns the user's effective role on the repo ("" if none):
142// the strongest of any explicit grant, the role derived from org
143// membership (org admin -> admin; plain member -> the org's members_role,
144// 'write' by default so the pre-teams model is the degenerate case), and
145// any team grants on the repo.
146func (s *Store) AccessRole(repoID, userID int64) (string, error) {
147 rank := map[string]int{"": 0, "none": 0, "read": 1, "write": 2, "admin": 3}
148 best := ""
149 better := func(role string) {
150 if rank[role] > rank[best] {
151 best = role
152 }
153 }
154
155 var explicit string
156 err := s.DB.QueryRow(
157 "SELECT role FROM repo_access WHERE repo_id = ? AND subject_kind = 'user' AND subject_id = ?",
158 repoID, userID).Scan(&explicit)
159 if err != nil && !errors.Is(err, sql.ErrNoRows) {
160 return "", err
161 }
162 better(explicit)
163
164 var orgRole, membersRole string
165 err = s.DB.QueryRow(`
166 SELECT m.role, o.members_role FROM repos r
167 JOIN org_members m ON r.owner_kind = 'org' AND m.org_id = r.owner_id AND m.user_id = ?
168 JOIN orgs o ON o.id = r.owner_id
169 WHERE r.id = ?`, userID, repoID).Scan(&orgRole, &membersRole)
170 if err != nil && !errors.Is(err, sql.ErrNoRows) {
171 return "", err
172 }
173 if orgRole == "admin" {
174 better("admin")
175 } else if orgRole == "member" {
176 better(membersRole) // write | read | none
177 }
178
179 var teamRole string
180 err = s.DB.QueryRow(`
181 SELECT tr.role FROM team_repos tr
182 JOIN team_members tm ON tm.team_id = tr.team_id AND tm.user_id = ?
183 WHERE tr.repo_id = ?
184 ORDER BY CASE tr.role WHEN 'admin' THEN 3 WHEN 'write' THEN 2 ELSE 1 END DESC
185 LIMIT 1`, userID, repoID).Scan(&teamRole)
186 if err != nil && !errors.Is(err, sql.ErrNoRows) {
187 return "", err
188 }
189 better(teamRole)
190 return best, nil
191}
192
193func (s *Store) GrantAccess(repoID, userID int64, role string) error {
194 _, err := s.DB.Exec(`
195 INSERT INTO repo_access (repo_id, subject_kind, subject_id, role) VALUES (?, 'user', ?, ?)
196 ON CONFLICT (repo_id, subject_kind, subject_id) DO UPDATE SET role = excluded.role`,
197 repoID, userID, role)
198 return err
199}
200
201func (s *Store) RevokeAccess(repoID, userID int64) error {
202 res, err := s.DB.Exec(
203 "DELETE FROM repo_access WHERE repo_id = ? AND subject_kind = 'user' AND subject_id = ?",
204 repoID, userID)
205 if err != nil {
206 return err
207 }
208 if n, _ := res.RowsAffected(); n == 0 {
209 return ErrNotFound
210 }
211 return nil
212}
213
214type AccessEntry struct {
215 Username string
216 Role string
217}
218
219func (s *Store) ListAccess(repoID int64) ([]AccessEntry, error) {
220 rows, err := s.DB.Query(`
221 SELECT u.username, a.role FROM repo_access a
222 JOIN users u ON a.subject_kind = 'user' AND u.id = a.subject_id
223 WHERE a.repo_id = ? ORDER BY u.username`, repoID)
224 if err != nil {
225 return nil, err
226 }
227 defer rows.Close()
228 var out []AccessEntry
229 for rows.Next() {
230 var e AccessEntry
231 if err := rows.Scan(&e.Username, &e.Role); err != nil {
232 return nil, err
233 }
234 out = append(out, e)
235 }
236 return out, rows.Err()
237}
238
239func (s *Store) RepoByID(id int64) (Repo, error) {
240 r, err := scanRepo(s.DB.QueryRow(repoSelect+" WHERE r.id = ?", id))
241 if errors.Is(err, sql.ErrNoRows) {
242 return Repo{}, ErrNotFound
243 }
244 return r, err
245}
246
247// ListPublicRepos returns all public repositories, for the anonymous index.
248func (s *Store) ListPublicRepos() ([]Repo, error) {
249 rows, err := s.DB.Query(repoSelect + " WHERE r.visibility = 'public' ORDER BY 4, r.name")
250 if err != nil {
251 return nil, err
252 }
253 defer rows.Close()
254 var out []Repo
255 for rows.Next() {
256 r, err := scanRepo(rows)
257 if err != nil {
258 return nil, err
259 }
260 out = append(out, r)
261 }
262 return out, rows.Err()
263}
264
265func (s *Store) UpdateDefaultBranch(repoID int64, branch string) error {
266 _, err := s.DB.Exec("UPDATE repos SET default_branch = ? WHERE id = ?", branch, repoID)
267 return err
268}
269
270// ListReposForOwner returns every repo owned by one user or org; the caller
271// filters by viewer visibility.
272func (s *Store) ListReposForOwner(ownerKind string, ownerID int64) ([]Repo, error) {
273 rows, err := s.DB.Query(repoSelect+" WHERE r.owner_kind = ? AND r.owner_id = ? ORDER BY r.name",
274 ownerKind, ownerID)
275 if err != nil {
276 return nil, err
277 }
278 defer rows.Close()
279 var out []Repo
280 for rows.Next() {
281 r, err := scanRepo(rows)
282 if err != nil {
283 return nil, err
284 }
285 out = append(out, r)
286 }
287 return out, rows.Err()
288}
289
290// TransferRepo moves a repository to a new owner. The unique index on
291// (owner_kind, owner_id, name) refuses collisions in the target namespace.
292func (s *Store) TransferRepo(repoID int64, newKind string, newOwnerID int64) error {
293 _, err := s.DB.Exec("UPDATE repos SET owner_kind = ?, owner_id = ? WHERE id = ?",
294 newKind, newOwnerID, repoID)
295 if isUniqueErr(err) {
296 return fmt.Errorf("the target owner already has a repository by that name")
297 }
298 return err
299}