| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "errors" |
| 5 | "fmt" |
| 6 | "io" |
| 7 | "os" |
| 8 | "os/exec" |
| 9 | "path/filepath" |
| 10 | "strings" |
| 11 | "sync" |
| 12 | "time" |
| 13 | |
| 14 | "reasonix/internal/config" |
| 15 | ) |
| 16 | |
| 17 | const ( |
| 18 | externalOpenerFileManager = "file-manager" |
| 19 | externalOpenerEditor = "editor" |
| 20 | externalOpenerTerminal = "terminal" |
| 21 | externalOpenerCatalogTTL = 15 * time.Second |
| 22 | ) |
| 23 | |
| 24 | // ExternalOpenerView is the renderer-safe description of one installed app. |
| 25 | // Target executable paths and launch arguments stay in the native shell so the |
| 26 | // frontend can never turn this feature into an arbitrary command runner. |
| 27 | type ExternalOpenerView struct { |
| 28 | ID string `json:"id"` |
| 29 | Name string `json:"name"` |
| 30 | Kind string `json:"kind"` |
| 31 | IconDataURL string `json:"iconDataUrl,omitempty"` |
| 32 | } |
| 33 | |
| 34 | // ExternalOpenersView is the complete state for the Codex-style Open control. |
| 35 | type ExternalOpenersView struct { |
| 36 | Openers []ExternalOpenerView `json:"openers"` |
| 37 | Preferred string `json:"preferred"` |
| 38 | WorkspaceOpenable bool `json:"workspaceOpenable,omitempty"` |
| 39 | } |
| 40 | |
| 41 | type externalOpenerSpec struct { |
| 42 | View ExternalOpenerView |
| 43 | Target string |
| 44 | LaunchMode string |
| 45 | IconSource string |
| 46 | } |
| 47 | |
| 48 | type externalOpenerCatalogCache struct { |
| 49 | mu sync.Mutex |
| 50 | ttl time.Duration |
| 51 | discover func() []externalOpenerSpec |
| 52 | now func() time.Time |
| 53 | loaded bool |
| 54 | loadedAt time.Time |
| 55 | specs []externalOpenerSpec |
| 56 | refreshDone chan struct{} |
| 57 | } |
| 58 | |
| 59 | var platformExternalOpenerCatalog = newExternalOpenerCatalogCache(externalOpenerCatalogTTL, platformExternalOpenerSpecs) |
| 60 | |
| 61 | func newExternalOpenerCatalogCache(ttl time.Duration, discover func() []externalOpenerSpec) *externalOpenerCatalogCache { |
| 62 | return &externalOpenerCatalogCache{ttl: ttl, discover: discover, now: time.Now} |
| 63 | } |
| 64 | |
| 65 | func cloneExternalOpenerSpecs(specs []externalOpenerSpec) []externalOpenerSpec { |
| 66 | return append([]externalOpenerSpec(nil), specs...) |
| 67 | } |
| 68 | |
| 69 | func (c *externalOpenerCatalogCache) get() []externalOpenerSpec { |
| 70 | for { |
| 71 | c.mu.Lock() |
| 72 | now := c.now() |
| 73 | if c.loaded && now.Sub(c.loadedAt) < c.ttl { |
| 74 | specs := cloneExternalOpenerSpecs(c.specs) |
| 75 | c.mu.Unlock() |
| 76 | return specs |
| 77 | } |
| 78 | if done := c.refreshDone; done != nil { |
| 79 | c.mu.Unlock() |
| 80 | <-done |
| 81 | continue |
| 82 | } |
| 83 | |
| 84 | done := make(chan struct{}) |
| 85 | c.refreshDone = done |
| 86 | discover := c.discover |
| 87 | c.mu.Unlock() |
| 88 | |
| 89 | specs := discover() |
| 90 | |
| 91 | c.mu.Lock() |
| 92 | c.specs = cloneExternalOpenerSpecs(specs) |
| 93 | c.loaded = true |
| 94 | c.loadedAt = c.now() |
| 95 | c.refreshDone = nil |
| 96 | close(done) |
| 97 | result := cloneExternalOpenerSpecs(c.specs) |
| 98 | c.mu.Unlock() |
| 99 | return result |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | func cachedPlatformExternalOpenerSpecs() []externalOpenerSpec { |
| 104 | return platformExternalOpenerCatalog.get() |
| 105 | } |
| 106 | |
| 107 | // startDetachedExternalOpener reaps the launched process in the background so |
| 108 | // exited children do not pile up as zombies for the desktop app's lifetime. |
| 109 | func startDetachedExternalOpener(cmd *exec.Cmd) error { |
| 110 | if err := cmd.Start(); err != nil { |
| 111 | return err |
| 112 | } |
| 113 | go func() { _ = cmd.Wait() }() |
| 114 | return nil |
| 115 | } |
| 116 | |
| 117 | func externalOpenerByID(specs []externalOpenerSpec, id string) (externalOpenerSpec, bool) { |
| 118 | id = strings.ToLower(strings.TrimSpace(id)) |
| 119 | for _, spec := range specs { |
| 120 | if spec.View.ID == id { |
| 121 | return spec, true |
| 122 | } |
| 123 | } |
| 124 | return externalOpenerSpec{}, false |
| 125 | } |
| 126 | |
| 127 | func resolveExternalOpener(specs []externalOpenerSpec, preferred string) (externalOpenerSpec, bool) { |
| 128 | if spec, ok := externalOpenerByID(specs, preferred); ok { |
| 129 | return spec, true |
| 130 | } |
| 131 | for _, spec := range specs { |
| 132 | if spec.View.Kind == externalOpenerFileManager { |
| 133 | return spec, true |
| 134 | } |
| 135 | } |
| 136 | if len(specs) == 0 { |
| 137 | return externalOpenerSpec{}, false |
| 138 | } |
| 139 | return specs[0], true |
| 140 | } |
| 141 | |
| 142 | func externalOpenerViews(specs []externalOpenerSpec) []ExternalOpenerView { |
| 143 | views := make([]ExternalOpenerView, 0, len(specs)) |
| 144 | seen := make(map[string]bool, len(specs)) |
| 145 | for _, spec := range specs { |
| 146 | id := strings.ToLower(strings.TrimSpace(spec.View.ID)) |
| 147 | if id == "" || seen[id] || strings.TrimSpace(spec.View.Name) == "" { |
| 148 | continue |
| 149 | } |
| 150 | spec.View.ID = id |
| 151 | views = append(views, spec.View) |
| 152 | seen[id] = true |
| 153 | } |
| 154 | return views |
| 155 | } |
| 156 | |
| 157 | func externalOpenerViewsWithIcons(specs []externalOpenerSpec) []ExternalOpenerView { |
| 158 | withIcons := make([]externalOpenerSpec, len(specs)) |
| 159 | copy(withIcons, specs) |
| 160 | for i := range withIcons { |
| 161 | withIcons[i].View.IconDataURL = externalOpenerIconDataURL(withIcons[i]) |
| 162 | } |
| 163 | return externalOpenerViews(withIcons) |
| 164 | } |
| 165 | |
| 166 | func (a *App) preferredExternalOpenerID() string { |
| 167 | cfg, _, err := a.loadDesktopUserConfigForView() |
| 168 | if err != nil || cfg == nil { |
| 169 | return "" |
| 170 | } |
| 171 | return cfg.DesktopExternalOpener() |
| 172 | } |
| 173 | |
| 174 | // ExternalOpeners returns only applications detected on the current machine. |
| 175 | // If a preference was copied from another OS or the app was uninstalled, the |
| 176 | // returned preferred id falls back without rewriting the user's config. |
| 177 | func (a *App) ExternalOpeners() ExternalOpenersView { |
| 178 | specs := cachedPlatformExternalOpenerSpecs() |
| 179 | views := externalOpenerViewsWithIcons(specs) |
| 180 | selected, ok := resolveExternalOpener(specs, a.preferredExternalOpenerID()) |
| 181 | if !ok { |
| 182 | return ExternalOpenersView{Openers: views} |
| 183 | } |
| 184 | return ExternalOpenersView{Openers: views, Preferred: selected.View.ID} |
| 185 | } |
| 186 | |
| 187 | // ExternalOpenersForTab adds the tab-scoped local-workspace capability used by |
| 188 | // the chat-header Open control. Scope is intentionally not part of the check: |
| 189 | // both project tabs and Global tabs can own a real local workspace directory. |
| 190 | func (a *App) ExternalOpenersForTab(tabID string) ExternalOpenersView { |
| 191 | if _, err := a.externalOpenerWorkspacePathForTab(tabID); err != nil { |
| 192 | return ExternalOpenersView{Openers: []ExternalOpenerView{}} |
| 193 | } |
| 194 | view := a.ExternalOpeners() |
| 195 | view.WorkspaceOpenable = true |
| 196 | return view |
| 197 | } |
| 198 | |
| 199 | // SetPreferredExternalOpener persists an installed, platform-owned opener id. |
| 200 | func (a *App) SetPreferredExternalOpener(id string) error { |
| 201 | specs := cachedPlatformExternalOpenerSpecs() |
| 202 | spec, ok := externalOpenerByID(specs, id) |
| 203 | if !ok { |
| 204 | return fmt.Errorf("external opener %q is not available", strings.TrimSpace(id)) |
| 205 | } |
| 206 | return a.applyConfigOnly(func(c *config.Config) error { |
| 207 | return c.SetDesktopExternalOpener(spec.View.ID) |
| 208 | }) |
| 209 | } |
| 210 | |
| 211 | // OpenWorkspaceInExternalOpenerForTab is tab-scoped so a rapid tab switch cannot |
| 212 | // send the wrong project to an external application. |
| 213 | func (a *App) OpenWorkspaceInExternalOpenerForTab(tabID, id string) error { |
| 214 | path, err := a.externalOpenerWorkspacePathForTab(tabID) |
| 215 | if err != nil { |
| 216 | return err |
| 217 | } |
| 218 | |
| 219 | specs := cachedPlatformExternalOpenerSpecs() |
| 220 | var spec externalOpenerSpec |
| 221 | var ok bool |
| 222 | if strings.TrimSpace(id) == "" { |
| 223 | spec, ok = resolveExternalOpener(specs, a.preferredExternalOpenerID()) |
| 224 | } else { |
| 225 | spec, ok = externalOpenerByID(specs, id) |
| 226 | } |
| 227 | if !ok { |
| 228 | return fmt.Errorf("external opener %q is not available", strings.TrimSpace(id)) |
| 229 | } |
| 230 | return launchPlatformExternalOpener(spec, path, true) |
| 231 | } |
| 232 | |
| 233 | func (a *App) externalOpenerWorkspacePathForTab(tabID string) (string, error) { |
| 234 | root, _, ok := a.workspaceTargetForTab(tabID) |
| 235 | if !ok { |
| 236 | return "", os.ErrNotExist |
| 237 | } |
| 238 | // A bound tab with no root has no stable workspace to expose. Keep the legacy |
| 239 | // no-tab current-directory fallback, but do not turn an incomplete tab into |
| 240 | // an opener for the Desktop process's launch directory. |
| 241 | if strings.TrimSpace(root) == "" { |
| 242 | return "", os.ErrNotExist |
| 243 | } |
| 244 | path, err := workspaceBaseFromRoot(root) |
| 245 | if err != nil { |
| 246 | return "", err |
| 247 | } |
| 248 | info, err := os.Stat(path) |
| 249 | if err != nil { |
| 250 | return "", err |
| 251 | } |
| 252 | if !info.IsDir() { |
| 253 | return "", fmt.Errorf("workspace is not a directory") |
| 254 | } |
| 255 | return path, nil |
| 256 | } |
| 257 | |
| 258 | // OpenLocalPathInExternalOpener opens an absolute local path with one of the |
| 259 | // detected, platform-owned applications. It shares OpenLocalPath's safety |
| 260 | // checks so a markdown link cannot turn an AI-generated executable path into |
| 261 | // an executable launch. |
| 262 | func (a *App) OpenLocalPathInExternalOpener(path, id string) error { |
| 263 | path, err := normalizeLocalOpenPath(path) |
| 264 | if err != nil { |
| 265 | return err |
| 266 | } |
| 267 | info, err := os.Stat(path) |
| 268 | if err != nil { |
| 269 | return err |
| 270 | } |
| 271 | if !openTargetPathAllowed(path, info) { |
| 272 | return fmt.Errorf("refusing to open executable target %q", path) |
| 273 | } |
| 274 | |
| 275 | specs := cachedPlatformExternalOpenerSpecs() |
| 276 | var spec externalOpenerSpec |
| 277 | var ok bool |
| 278 | if strings.TrimSpace(id) == "" { |
| 279 | spec, ok = resolveExternalOpener(specs, a.preferredExternalOpenerID()) |
| 280 | } else { |
| 281 | spec, ok = externalOpenerByID(specs, id) |
| 282 | } |
| 283 | if !ok { |
| 284 | return fmt.Errorf("external opener %q is not available", strings.TrimSpace(id)) |
| 285 | } |
| 286 | return launchPlatformExternalOpener(spec, path, info.IsDir()) |
| 287 | } |
| 288 | |
| 289 | // SaveLocalPathAs copies a local file to a user-selected destination without |
| 290 | // changing the source. Directories are intentionally excluded: Finder's |
| 291 | // reveal action is the appropriate operation for them. |
| 292 | func (a *App) SaveLocalPathAs(path string) (string, error) { |
| 293 | path, err := normalizeLocalOpenPath(path) |
| 294 | if err != nil { |
| 295 | return "", err |
| 296 | } |
| 297 | info, err := os.Stat(path) |
| 298 | if err != nil { |
| 299 | return "", err |
| 300 | } |
| 301 | if info.IsDir() { |
| 302 | return "", fmt.Errorf("cannot save a directory as a file") |
| 303 | } |
| 304 | if a.ctx == nil { |
| 305 | return "", nil |
| 306 | } |
| 307 | target, err := a.nativeHost().SaveFileDialog(a.ctx, nativeDialogOptions{ |
| 308 | Title: "Save file as", |
| 309 | DefaultDirectory: filepath.Dir(path), |
| 310 | DefaultFilename: filepath.Base(path), |
| 311 | CanCreateDirectories: true, |
| 312 | }) |
| 313 | if err != nil || target == "" { |
| 314 | return "", err |
| 315 | } |
| 316 | if filepath.Clean(target) == filepath.Clean(path) { |
| 317 | return "", fmt.Errorf("destination is the same as the source") |
| 318 | } |
| 319 | if err := copyLocalPathAs(path, target); err != nil { |
| 320 | return "", err |
| 321 | } |
| 322 | return target, nil |
| 323 | } |
| 324 | |
| 325 | func copyLocalPathAs(path, target string) (err error) { |
| 326 | src, err := os.Open(path) |
| 327 | if err != nil { |
| 328 | return err |
| 329 | } |
| 330 | defer src.Close() |
| 331 | sourceInfo, err := src.Stat() |
| 332 | if err != nil { |
| 333 | return err |
| 334 | } |
| 335 | if sourceInfo.IsDir() { |
| 336 | return fmt.Errorf("cannot save a directory as a file") |
| 337 | } |
| 338 | sameFile, err := localSaveDestinationIsSource(sourceInfo, target) |
| 339 | if err != nil { |
| 340 | return err |
| 341 | } |
| 342 | if sameFile { |
| 343 | return fmt.Errorf("destination is the same as the source") |
| 344 | } |
| 345 | |
| 346 | tmp, err := os.CreateTemp(filepath.Dir(target), "."+filepath.Base(target)+".reasonix-copy-*") |
| 347 | if err != nil { |
| 348 | return err |
| 349 | } |
| 350 | tmpName := tmp.Name() |
| 351 | defer func() { |
| 352 | if tmpName != "" { |
| 353 | _ = os.Remove(tmpName) |
| 354 | } |
| 355 | }() |
| 356 | if _, err = io.Copy(tmp, src); err != nil { |
| 357 | _ = tmp.Close() |
| 358 | return err |
| 359 | } |
| 360 | if err = tmp.Sync(); err != nil { |
| 361 | _ = tmp.Close() |
| 362 | return err |
| 363 | } |
| 364 | if err = tmp.Chmod(sourceInfo.Mode().Perm()); err != nil { |
| 365 | _ = tmp.Close() |
| 366 | return err |
| 367 | } |
| 368 | if err = tmp.Close(); err != nil { |
| 369 | return err |
| 370 | } |
| 371 | if err = replaceLocalSaveDestination(tmpName, target); err != nil { |
| 372 | return err |
| 373 | } |
| 374 | tmpName = "" |
| 375 | return nil |
| 376 | } |
| 377 | |
| 378 | // localSaveDestinationIsSource compares filesystem identity, not just path |
| 379 | // spelling. os.Stat follows aliases, so this catches case-insensitive paths, |
| 380 | // symlinks, and hard links before the destination is replaced. |
| 381 | func localSaveDestinationIsSource(sourceInfo os.FileInfo, target string) (bool, error) { |
| 382 | targetInfo, err := os.Stat(target) |
| 383 | if errors.Is(err, os.ErrNotExist) { |
| 384 | return false, nil |
| 385 | } |
| 386 | if err != nil { |
| 387 | return false, err |
| 388 | } |
| 389 | return os.SameFile(sourceInfo, targetInfo), nil |
| 390 | } |
| 391 | |
| 392 | // externalOpenerWorkingDirectory returns a valid directory for process launch. |
| 393 | // Editors still receive the original file path as an argument; only the |
| 394 | // process CWD changes when the requested path is a regular file. |
| 395 | func externalOpenerWorkingDirectory(path string) string { |
| 396 | info, err := os.Stat(path) |
| 397 | if err == nil && !info.IsDir() { |
| 398 | return filepath.Dir(path) |
| 399 | } |
| 400 | return path |
| 401 | } |
| 402 | |
| 403 | func externalOpenerLaunchPath(spec externalOpenerSpec, path string) string { |
| 404 | if spec.View.Kind == externalOpenerTerminal || isTerminalLaunchMode(spec.LaunchMode) { |
| 405 | return externalOpenerWorkingDirectory(path) |
| 406 | } |
| 407 | return path |
| 408 | } |
| 409 | |
| 410 | func isTerminalLaunchMode(mode string) bool { |
| 411 | switch mode { |
| 412 | case "ghostty", "gnome-terminal", "konsole", "kitty", "alacritty", "cwd", "windows-terminal", "console": |
| 413 | return true |
| 414 | default: |
| 415 | return false |
| 416 | } |
| 417 | } |
| 418 |