| 1 | package cli |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "math" |
| 6 | "os" |
| 7 | "os/exec" |
| 8 | "path/filepath" |
| 9 | "regexp" |
| 10 | "runtime" |
| 11 | "strconv" |
| 12 | "strings" |
| 13 | |
| 14 | tea "charm.land/bubbletea/v2" |
| 15 | "github.com/atotto/clipboard" |
| 16 | |
| 17 | "reasonix/internal/control" |
| 18 | "reasonix/internal/provider" |
| 19 | "reasonix/internal/secrets" |
| 20 | "reasonix/internal/shellparse" |
| 21 | ) |
| 22 | |
| 23 | // This file holds the chat TUI's paste & image-attachment input layer: folding |
| 24 | // long pasted text into a deletable [Pasted text #N] token, turning |
| 25 | // dragged/pasted images and file paths into @references, and the clipboard |
| 26 | // commands behind them. The composer state it operates on (pastedBlocks / |
| 27 | // nextPasteID / pendingPastes) lives on chatTUI; these are split out of |
| 28 | // chat_tui.go as a self-contained concern. |
| 29 | |
| 30 | func pastedLineCount(s string) int { |
| 31 | if s == "" { |
| 32 | return 0 |
| 33 | } |
| 34 | return strings.Count(strings.ReplaceAll(strings.ReplaceAll(s, "\r\n", "\n"), "\r", "\n"), "\n") + 1 |
| 35 | } |
| 36 | |
| 37 | func foldedPasteLabel(id, lines int) string { |
| 38 | return fmt.Sprintf("[Pasted text #%d · %d lines]", id, lines) |
| 39 | } |
| 40 | |
| 41 | func renderFoldedPasteBlock(block pastedBlock) string { |
| 42 | return fmt.Sprintf("%s\n\n--- Begin %s ---\n%s\n--- End %s ---", block.label, block.label, block.text, block.label) |
| 43 | } |
| 44 | |
| 45 | func shouldFoldPastedText(s string) bool { |
| 46 | return len([]rune(s)) >= foldedPasteMinChars || pastedLineCount(s) >= foldedPasteMinLines |
| 47 | } |
| 48 | |
| 49 | func (m *chatTUI) shouldFoldPaste(s string) bool { |
| 50 | return shouldFoldPastedText(s) |
| 51 | } |
| 52 | |
| 53 | func (m *chatTUI) insertFoldedPaste(s string) { |
| 54 | m.deleteComposerSelection() |
| 55 | label := foldedPasteLabel(m.takeNextPasteID(), pastedLineCount(s)) |
| 56 | m.pastedBlocks = append(m.pastedBlocks, pastedBlock{label: label, text: s}) |
| 57 | m.input.InsertString(label + " ") |
| 58 | } |
| 59 | |
| 60 | // insertImageRef puts a deletable [image #N] token in the input box (mapped to |
| 61 | // the saved attachment's @ref, expanded on submit) so a dragged/pasted image is |
| 62 | // edited and removed like any other text, not stranded in a separate tray. |
| 63 | func (m *chatTUI) insertImageRef(path string) { |
| 64 | m.deleteComposerSelection() |
| 65 | label := fmt.Sprintf("[image #%d]", m.takeNextPasteID()) |
| 66 | m.pastedBlocks = append(m.pastedBlocks, pastedBlock{label: label, text: "@" + path, image: true}) |
| 67 | m.input.InsertString(label + " ") |
| 68 | m.growInputToFit() |
| 69 | m.updateCompletion() |
| 70 | } |
| 71 | |
| 72 | func (m *chatTUI) expandPastedBlocks(displayed string) string { |
| 73 | sent := displayed |
| 74 | for _, block := range m.pastedBlocks { |
| 75 | if !strings.Contains(sent, block.label) { |
| 76 | continue |
| 77 | } |
| 78 | repl := renderFoldedPasteBlock(block) |
| 79 | if block.image { |
| 80 | repl = block.text |
| 81 | } |
| 82 | sent = strings.ReplaceAll(sent, block.label, repl) |
| 83 | } |
| 84 | // Recover orphaned paste labels that lost their block entries during a |
| 85 | // session reload. Each label follows the format |
| 86 | // [Pasted text #N · M lines]; the original content was expanded into the |
| 87 | // transcript the last time it was submitted. Scan the conversation |
| 88 | // history for a prior user message carrying the matching Begin/End block |
| 89 | // and re-expand from there. Labels with no verified content remain literal. |
| 90 | sent = m.recoverOrphanedPasteLabels(sent) |
| 91 | return sent |
| 92 | } |
| 93 | |
| 94 | var foldedPasteLabelRe = regexp.MustCompile(`\[Pasted text #(\d+) · (\d+) lines\]`) |
| 95 | |
| 96 | // recoverOrphanedPasteLabels restores paste content only at the explicit |
| 97 | // resubmission boundary. Persisted history remains byte-stable for prefix-cache |
| 98 | // reuse; labels that cannot be proven to belong to a prior expanded user |
| 99 | // message are left unchanged rather than rewriting literal user text. |
| 100 | func (m *chatTUI) recoverOrphanedPasteLabels(sent string) string { |
| 101 | var history []provider.Message |
| 102 | if m.ctrl != nil { |
| 103 | history = m.ctrl.History() |
| 104 | } |
| 105 | return recoverOrphanedPasteLabelsFromHistory(sent, m.pastedBlocks, history) |
| 106 | } |
| 107 | |
| 108 | func recoverOrphanedPasteLabelsFromHistory(sent string, knownBlocks []pastedBlock, history []provider.Message) string { |
| 109 | // Fast path: no label-like tokens at all. |
| 110 | if !strings.Contains(sent, "[Pasted text #") { |
| 111 | return sent |
| 112 | } |
| 113 | matches := foldedPasteLabelRe.FindAllString(sent, -1) |
| 114 | if len(matches) == 0 { |
| 115 | return sent |
| 116 | } |
| 117 | // Collect the labels we already know about so we only attempt recovery |
| 118 | // for genuinely orphaned ones. |
| 119 | known := make(map[string]bool, len(knownBlocks)) |
| 120 | for _, b := range knownBlocks { |
| 121 | known[b.label] = true |
| 122 | } |
| 123 | seen := make(map[string]bool, len(matches)) |
| 124 | for _, label := range matches { |
| 125 | if known[label] || seen[label] || strings.Contains(sent, "--- Begin "+label+" ---") { |
| 126 | continue |
| 127 | } |
| 128 | seen[label] = true |
| 129 | var recovered string |
| 130 | found := false |
| 131 | ambiguous := false |
| 132 | for i := len(history) - 1; i >= 0; i-- { |
| 133 | if history[i].Role != provider.RoleUser { |
| 134 | continue |
| 135 | } |
| 136 | for _, body := range expandedPasteBodies(history[i].Content, label) { |
| 137 | if !found { |
| 138 | recovered = body |
| 139 | found = true |
| 140 | continue |
| 141 | } |
| 142 | if recovered != body { |
| 143 | ambiguous = true |
| 144 | break |
| 145 | } |
| 146 | } |
| 147 | if ambiguous { |
| 148 | break |
| 149 | } |
| 150 | } |
| 151 | if found && !ambiguous { |
| 152 | sent = strings.ReplaceAll(sent, label, renderFoldedPasteBlock(pastedBlock{ |
| 153 | label: label, |
| 154 | text: recovered, |
| 155 | })) |
| 156 | } |
| 157 | } |
| 158 | return sent |
| 159 | } |
| 160 | |
| 161 | func expandedPasteBodies(content, label string) []string { |
| 162 | expectedLines, ok := foldedPasteLineCount(label) |
| 163 | if !ok { |
| 164 | return nil |
| 165 | } |
| 166 | beginMarker := "--- Begin " + label + " ---" |
| 167 | endMarker := "\n--- End " + label + " ---" |
| 168 | var bodies []string |
| 169 | for searchFrom := 0; searchFrom < len(content); { |
| 170 | beginOffset := strings.Index(content[searchFrom:], beginMarker) |
| 171 | if beginOffset < 0 { |
| 172 | break |
| 173 | } |
| 174 | bodyStart := searchFrom + beginOffset + len(beginMarker) |
| 175 | if bodyStart >= len(content) || content[bodyStart] != '\n' { |
| 176 | searchFrom = bodyStart |
| 177 | continue |
| 178 | } |
| 179 | bodyStart++ |
| 180 | endSearchFrom := bodyStart |
| 181 | foundEnd := false |
| 182 | for endSearchFrom < len(content) { |
| 183 | endOffset := strings.Index(content[endSearchFrom:], endMarker) |
| 184 | if endOffset < 0 { |
| 185 | break |
| 186 | } |
| 187 | bodyEnd := endSearchFrom + endOffset |
| 188 | searchFrom = bodyEnd + len(endMarker) |
| 189 | body := content[bodyStart:bodyEnd] |
| 190 | if body != "" && pastedLineCount(body) == expectedLines { |
| 191 | bodies = append(bodies, body) |
| 192 | foundEnd = true |
| 193 | break |
| 194 | } |
| 195 | endSearchFrom = searchFrom |
| 196 | } |
| 197 | if !foundEnd { |
| 198 | break |
| 199 | } |
| 200 | } |
| 201 | return bodies |
| 202 | } |
| 203 | |
| 204 | func foldedPasteLineCount(label string) (int, bool) { |
| 205 | match := foldedPasteLabelRe.FindStringSubmatch(label) |
| 206 | if len(match) < 3 || match[0] != label { |
| 207 | return 0, false |
| 208 | } |
| 209 | lines, err := strconv.Atoi(match[2]) |
| 210 | if err != nil || lines < 1 { |
| 211 | return 0, false |
| 212 | } |
| 213 | return lines, true |
| 214 | } |
| 215 | |
| 216 | // nextPasteIDForHistory prevents labels from being reused after resume or |
| 217 | // restart. Older sessions may contain duplicate legacy IDs; starting above the |
| 218 | // maximum keeps every newly created label unambiguous. |
| 219 | func nextPasteIDForHistory(history []provider.Message) int { |
| 220 | next, _ := pasteIDStateForHistory(history) |
| 221 | return next |
| 222 | } |
| 223 | |
| 224 | func pasteIDStateForHistory(history []provider.Message) (int, map[int]struct{}) { |
| 225 | next := 1 |
| 226 | used := make(map[int]struct{}) |
| 227 | for _, msg := range history { |
| 228 | for _, match := range foldedPasteLabelRe.FindAllStringSubmatch(msg.Content, -1) { |
| 229 | if len(match) < 2 { |
| 230 | continue |
| 231 | } |
| 232 | id, err := strconv.Atoi(match[1]) |
| 233 | if err != nil || id < 1 { |
| 234 | continue |
| 235 | } |
| 236 | used[id] = struct{}{} |
| 237 | if id >= next && id < math.MaxInt { |
| 238 | next = id + 1 |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | return next, used |
| 243 | } |
| 244 | |
| 245 | func (m *chatTUI) takeNextPasteID() int { |
| 246 | if m.ctrl != nil { |
| 247 | m.syncPasteIDStateFromHistory(m.ctrl.History()) |
| 248 | } |
| 249 | candidate := m.nextPasteID |
| 250 | if candidate < 1 { |
| 251 | candidate = 1 |
| 252 | } |
| 253 | if m.usedPasteIDs == nil { |
| 254 | m.usedPasteIDs = make(map[int]struct{}) |
| 255 | } |
| 256 | for { |
| 257 | if _, used := m.usedPasteIDs[candidate]; !used { |
| 258 | m.usedPasteIDs[candidate] = struct{}{} |
| 259 | if candidate == math.MaxInt { |
| 260 | m.nextPasteID = 1 |
| 261 | } else { |
| 262 | m.nextPasteID = candidate + 1 |
| 263 | } |
| 264 | return candidate |
| 265 | } |
| 266 | if candidate == math.MaxInt { |
| 267 | candidate = 1 |
| 268 | } else { |
| 269 | candidate++ |
| 270 | } |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | func (m *chatTUI) syncPasteIDStateFromHistory(history []provider.Message) { |
| 275 | next, used := pasteIDStateForHistory(history) |
| 276 | if m.usedPasteIDs == nil { |
| 277 | m.usedPasteIDs = make(map[int]struct{}, len(used)) |
| 278 | } |
| 279 | for id := range used { |
| 280 | m.usedPasteIDs[id] = struct{}{} |
| 281 | } |
| 282 | if m.nextPasteID < 1 || next > m.nextPasteID { |
| 283 | m.nextPasteID = next |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | func (m *chatTUI) pasteLabelsIn(s string) []string { |
| 288 | var labels []string |
| 289 | for _, block := range m.pastedBlocks { |
| 290 | if strings.Contains(s, block.label) { |
| 291 | labels = append(labels, block.label) |
| 292 | } |
| 293 | } |
| 294 | return labels |
| 295 | } |
| 296 | |
| 297 | func (m *chatTUI) clearSubmittedPastes() { |
| 298 | if len(m.pendingPastes) == 0 { |
| 299 | return |
| 300 | } |
| 301 | submitted := make(map[string]bool, len(m.pendingPastes)) |
| 302 | for _, label := range m.pendingPastes { |
| 303 | submitted[label] = true |
| 304 | } |
| 305 | kept := m.pastedBlocks[:0] |
| 306 | for _, block := range m.pastedBlocks { |
| 307 | if !submitted[block.label] { |
| 308 | kept = append(kept, block) |
| 309 | } |
| 310 | } |
| 311 | m.pastedBlocks = kept |
| 312 | m.pendingPastes = nil |
| 313 | } |
| 314 | |
| 315 | func pasteClipboardImage() tea.Cmd { |
| 316 | return func() tea.Msg { |
| 317 | path, err := control.SaveClipboardImage() |
| 318 | return clipboardImageMsg{path: path, err: err} |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | type clipboardTextPasteMsg struct { |
| 323 | text string |
| 324 | err error |
| 325 | remote bool |
| 326 | } |
| 327 | |
| 328 | var readNativeClipboardText = clipboard.ReadAll |
| 329 | |
| 330 | // pasteClipboardText backs the captured-mouse right-click path. Keyboard text |
| 331 | // paste still arrives from the terminal as a bracketed tea.PasteMsg; this read |
| 332 | // is deliberately text-only so right-click never probes for an image first. |
| 333 | func pasteClipboardText() tea.Cmd { |
| 334 | return func() tea.Msg { |
| 335 | if remoteClipboardSession() { |
| 336 | return clipboardTextPasteMsg{remote: true} |
| 337 | } |
| 338 | text, err := readNativeClipboardText() |
| 339 | return clipboardTextPasteMsg{text: text, err: err} |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | func imagePasteShortcut(keyName, goos string) bool { |
| 344 | if goos == "windows" { |
| 345 | return keyName == "alt+v" |
| 346 | } |
| 347 | return keyName == "ctrl+v" |
| 348 | } |
| 349 | |
| 350 | func (m *chatTUI) beginClipboardImagePaste() tea.Cmd { |
| 351 | if m.clipboardImagePending { |
| 352 | return nil |
| 353 | } |
| 354 | m.clipboardImagePending = true |
| 355 | return pasteClipboardImage() |
| 356 | } |
| 357 | |
| 358 | var ( |
| 359 | readTmuxPasteBuffer = readTmuxBuffer |
| 360 | readPrimaryPasteSelection = readPrimarySelection |
| 361 | newPasteCommand = exec.Command |
| 362 | ) |
| 363 | |
| 364 | // pasteMiddleClick returns a tea.Cmd that reads from the selection owner for the |
| 365 | // current terminal environment and sends the result through the canonical paste |
| 366 | // path. tmux normally owns middle-click and pastes its current buffer, but forwards |
| 367 | // the event when an application enables mouse reporting; honor that same contract |
| 368 | // here instead of unexpectedly switching to the desktop PRIMARY selection. |
| 369 | func pasteMiddleClick() tea.Cmd { |
| 370 | return func() tea.Msg { |
| 371 | if os.Getenv("TMUX") != "" { |
| 372 | text, err := readTmuxPasteBuffer() |
| 373 | if err != nil || text == "" { |
| 374 | return nil |
| 375 | } |
| 376 | return tea.PasteMsg{Content: text} |
| 377 | } |
| 378 | if remoteClipboardSession() { |
| 379 | return clipboardTextPasteMsg{remote: true} |
| 380 | } |
| 381 | text, err := readPrimaryPasteSelection() |
| 382 | if err != nil || text == "" { |
| 383 | return nil |
| 384 | } |
| 385 | return tea.PasteMsg{Content: text} |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | // readTmuxBuffer retrieves the current tmux buffer verbatim. The inherited TMUX |
| 390 | // environment variable identifies the correct server socket, just as the tmux |
| 391 | // client command does for an interactive shell inside the pane. |
| 392 | func readTmuxBuffer() (string, error) { |
| 393 | cmd := newPasteCommand("tmux", "save-buffer", "-") |
| 394 | cmd.Env = secrets.ProcessEnv() |
| 395 | out, err := cmd.Output() |
| 396 | if err != nil { |
| 397 | return "", fmt.Errorf("read tmux paste buffer: %w", err) |
| 398 | } |
| 399 | return string(out), nil |
| 400 | } |
| 401 | |
| 402 | // readPrimarySelection attempts to retrieve text from the PRIMARY selection by |
| 403 | // trying wl-paste (Wayland), xclip (X11), and xsel (X11) in order. |
| 404 | func readPrimarySelection() (string, error) { |
| 405 | // Match the order used by SaveClipboardImage: Wayland tool first, then X11. |
| 406 | for _, args := range [][]string{ |
| 407 | {"wl-paste", "--primary", "--type", "text", "--no-newline"}, |
| 408 | {"xclip", "-selection", "primary", "-o"}, |
| 409 | {"xsel", "--output", "--primary"}, |
| 410 | } { |
| 411 | cmd := newPasteCommand(args[0], args[1:]...) |
| 412 | cmd.Env = secrets.ProcessEnv() |
| 413 | out, err := cmd.Output() |
| 414 | if err == nil { |
| 415 | return string(out), nil |
| 416 | } |
| 417 | } |
| 418 | return "", fmt.Errorf("no primary selection tool found (need wl-paste, xclip, or xsel)") |
| 419 | } |
| 420 | |
| 421 | func (m *chatTUI) attachPastedImages(text string) bool { |
| 422 | sources, ok := pastedImageSources(text) |
| 423 | if !ok { |
| 424 | return false |
| 425 | } |
| 426 | attached := false |
| 427 | for _, src := range sources { |
| 428 | path, err := savePastedImageSource(src) |
| 429 | if err != nil { |
| 430 | m.notice("paste image: " + err.Error()) |
| 431 | continue |
| 432 | } |
| 433 | m.insertImageRef(path) |
| 434 | attached = true |
| 435 | } |
| 436 | if !attached && m.validComposerSelection() && !m.composerSel.empty() { |
| 437 | // A failed attachment must not replace an active selection. The notice |
| 438 | // above explains the failure; callers otherwise fall back to text paste. |
| 439 | return true |
| 440 | } |
| 441 | return attached |
| 442 | } |
| 443 | |
| 444 | var markdownImageSourceRe = regexp.MustCompile(`!\[[^\]]*\]\(([^)]+)\)`) |
| 445 | |
| 446 | type pastedImageSource struct { |
| 447 | value string |
| 448 | shellDecoded bool |
| 449 | } |
| 450 | |
| 451 | func pastedImageSources(text string) ([]pastedImageSource, bool) { |
| 452 | return pastedImageSourcesForOS(text, runtime.GOOS) |
| 453 | } |
| 454 | |
| 455 | func pastedImageSourcesForOS(text, goos string) ([]pastedImageSource, bool) { |
| 456 | trimmed := strings.TrimSpace(text) |
| 457 | if trimmed == "" { |
| 458 | return nil, false |
| 459 | } |
| 460 | if isDataImage(trimmed) { |
| 461 | return []pastedImageSource{{value: trimmed}}, true |
| 462 | } |
| 463 | if matches := markdownImageSourceRe.FindAllStringSubmatch(trimmed, -1); len(matches) > 0 { |
| 464 | rest := strings.TrimSpace(markdownImageSourceRe.ReplaceAllString(trimmed, "")) |
| 465 | if rest == "" { |
| 466 | sources := make([]pastedImageSource, 0, len(matches)) |
| 467 | for _, m := range matches { |
| 468 | sources = append(sources, pastedImageSource{value: m[1]}) |
| 469 | } |
| 470 | return sources, true |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | lines := nonEmptyPasteLines(trimmed) |
| 475 | lineSources := rawPastedImageSources(lines) |
| 476 | if len(lines) > 0 && allImageSources(lineSources, goos) { |
| 477 | return lineSources, true |
| 478 | } |
| 479 | fields := splitPastePathTokens(trimmed) |
| 480 | fieldSources := rawPastedImageSources(fields) |
| 481 | if len(fields) > 1 && allImageSources(fieldSources, goos) { |
| 482 | return fieldSources, true |
| 483 | } |
| 484 | if staticFields, malformed := shellparse.StaticFields(trimmed); malformed == "" && len(staticFields) > 1 { |
| 485 | sources := make([]pastedImageSource, 0, len(staticFields)) |
| 486 | for _, field := range staticFields { |
| 487 | sources = append(sources, pastedImageSource{value: field, shellDecoded: true}) |
| 488 | } |
| 489 | if allImageSources(sources, goos) { |
| 490 | return sources, true |
| 491 | } |
| 492 | } |
| 493 | return nil, false |
| 494 | } |
| 495 | |
| 496 | func rawPastedImageSources(values []string) []pastedImageSource { |
| 497 | sources := make([]pastedImageSource, 0, len(values)) |
| 498 | for _, value := range values { |
| 499 | sources = append(sources, pastedImageSource{value: value}) |
| 500 | } |
| 501 | return sources |
| 502 | } |
| 503 | |
| 504 | // splitPastePathTokens splits pasted text into path tokens the way a shell |
| 505 | // would hand them to a program: unescaped, unquoted whitespace separates |
| 506 | // tokens, while backslash escapes and token-leading quotes keep a path with |
| 507 | // spaces together. Tokens keep their original escapes/quotes so each one |
| 508 | // round-trips through pastedImagePath. Quotes only open at the start of a |
| 509 | // token, so an apostrophe inside a word ("it's") never swallows the rest of |
| 510 | // the text. |
| 511 | func splitPastePathTokens(s string) []string { |
| 512 | var tokens []string |
| 513 | var b strings.Builder |
| 514 | var quote byte |
| 515 | escaped := false |
| 516 | flush := func() { |
| 517 | if b.Len() > 0 { |
| 518 | tokens = append(tokens, b.String()) |
| 519 | b.Reset() |
| 520 | } |
| 521 | } |
| 522 | for i := 0; i < len(s); i++ { |
| 523 | ch := s[i] |
| 524 | switch { |
| 525 | case escaped: |
| 526 | b.WriteByte(ch) |
| 527 | escaped = false |
| 528 | case quote != 0: |
| 529 | b.WriteByte(ch) |
| 530 | if ch == quote { |
| 531 | quote = 0 |
| 532 | } |
| 533 | case ch == '\\': |
| 534 | b.WriteByte(ch) |
| 535 | escaped = true |
| 536 | case (ch == '\'' || ch == '"') && b.Len() == 0: |
| 537 | b.WriteByte(ch) |
| 538 | quote = ch |
| 539 | case ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n': |
| 540 | flush() |
| 541 | default: |
| 542 | b.WriteByte(ch) |
| 543 | } |
| 544 | } |
| 545 | flush() |
| 546 | return tokens |
| 547 | } |
| 548 | |
| 549 | func nonEmptyPasteLines(text string) []string { |
| 550 | var out []string |
| 551 | for _, line := range strings.Split(strings.ReplaceAll(text, "\r\n", "\n"), "\n") { |
| 552 | line = strings.TrimSpace(line) |
| 553 | if line != "" { |
| 554 | out = append(out, line) |
| 555 | } |
| 556 | } |
| 557 | return out |
| 558 | } |
| 559 | |
| 560 | func allImageSources(sources []pastedImageSource, goos string) bool { |
| 561 | if len(sources) == 0 { |
| 562 | return false |
| 563 | } |
| 564 | for _, src := range sources { |
| 565 | if !looksLikeImageSource(src, goos) { |
| 566 | return false |
| 567 | } |
| 568 | } |
| 569 | return true |
| 570 | } |
| 571 | |
| 572 | func looksLikeImageSource(src pastedImageSource, goos string) bool { |
| 573 | if isDataImage(strings.TrimSpace(src.value)) { |
| 574 | return true |
| 575 | } |
| 576 | for _, path := range pastedPathCandidates(src.value, goos, src.shellDecoded) { |
| 577 | switch strings.ToLower(filepath.Ext(path)) { |
| 578 | case ".png", ".jpg", ".jpeg", ".gif", ".webp": |
| 579 | return true |
| 580 | } |
| 581 | } |
| 582 | return false |
| 583 | } |
| 584 | |
| 585 | func savePastedImageSource(src pastedImageSource) (string, error) { |
| 586 | value := strings.TrimSpace(src.value) |
| 587 | if isDataImage(value) { |
| 588 | return control.SaveImageDataURL(value) |
| 589 | } |
| 590 | var lastErr error |
| 591 | for _, path := range pastedPathCandidates(value, runtime.GOOS, src.shellDecoded) { |
| 592 | if !looksLikeImagePath(path) { |
| 593 | continue |
| 594 | } |
| 595 | saved, err := control.SaveImageFile(path) |
| 596 | if err == nil { |
| 597 | return saved, nil |
| 598 | } |
| 599 | lastErr = err |
| 600 | } |
| 601 | if lastErr != nil { |
| 602 | return "", lastErr |
| 603 | } |
| 604 | return "", fmt.Errorf("unsupported pasted image source") |
| 605 | } |
| 606 | |
| 607 | func looksLikeImagePath(path string) bool { |
| 608 | switch strings.ToLower(filepath.Ext(path)) { |
| 609 | case ".png", ".jpg", ".jpeg", ".gif", ".webp": |
| 610 | return true |
| 611 | default: |
| 612 | return false |
| 613 | } |
| 614 | } |
| 615 | |
| 616 | func isDataImage(src string) bool { |
| 617 | return strings.HasPrefix(strings.ToLower(strings.TrimSpace(src)), "data:image/") |
| 618 | } |
| 619 | |
| 620 | // pastedImagePathForOS returns the preferred syntactic candidate with the OS |
| 621 | // injected so platform-specific path handling is testable everywhere. |
| 622 | func pastedImagePathForOS(src, goos string) (string, bool) { |
| 623 | candidates := pastedPathCandidates(src, goos, false) |
| 624 | if len(candidates) == 0 { |
| 625 | return "", false |
| 626 | } |
| 627 | return candidates[0], true |
| 628 | } |
| 629 | |
| 630 | func hasUnescapedPathWhitespace(s string) bool { |
| 631 | escaped := false |
| 632 | for i := 0; i < len(s); i++ { |
| 633 | ch := s[i] |
| 634 | if escaped { |
| 635 | escaped = false |
| 636 | continue |
| 637 | } |
| 638 | if ch == '\\' { |
| 639 | escaped = true |
| 640 | continue |
| 641 | } |
| 642 | if ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n' { |
| 643 | return true |
| 644 | } |
| 645 | } |
| 646 | return false |
| 647 | } |
| 648 | |
| 649 | // unescapeShellPath applies POSIX backslash semantics to an unquoted pasted |
| 650 | // path: a backslash makes the next byte literal, whatever it is — zsh and |
| 651 | // bash escape any byte they consider special that way (space, parens, ^, |
| 652 | // comma, $, ...), so a whitelist would always lag behind. A trailing |
| 653 | // backslash stays literal. Quoted paths and Windows paths never reach here. |
| 654 | func unescapeShellPath(s string) string { |
| 655 | var b strings.Builder |
| 656 | b.Grow(len(s)) |
| 657 | for i := 0; i < len(s); i++ { |
| 658 | if s[i] == '\\' && i+1 < len(s) { |
| 659 | i++ |
| 660 | } |
| 661 | b.WriteByte(s[i]) |
| 662 | } |
| 663 | return b.String() |
| 664 | } |
| 665 | |
| 666 | // pastedFileRef turns a dragged/pasted non-image file path into an @reference so |
| 667 | // it attaches instead of landing as literal text (and, for a POSIX path, being |
| 668 | // misread as a slash command). Images are handled earlier; only path-shaped |
| 669 | // content (a separator) that points at a real file qualifies, so an ordinary |
| 670 | // pasted word is left alone. Whitespace in the path is escaped so the ref |
| 671 | // survives @-token parsing on submit. |
| 672 | func pastedFileRef(content string) (string, bool) { |
| 673 | path, ok := resolveExistingPastedPath(content, runtime.GOOS, false, pastedPathExists) |
| 674 | if !ok || !strings.ContainsAny(path, `/\`) { |
| 675 | return "", false |
| 676 | } |
| 677 | return "@" + control.EscapeRefPath(path), true |
| 678 | } |
| 679 |