| 1 | import crypto from 'crypto' |
| 2 | import fs from 'fs' |
| 3 | import path from 'path' |
| 4 | import type { SessionPageRecord } from '../db/database' |
| 5 | import { GitHistoryService } from '../history/git-history-service' |
| 6 | import { |
| 7 | ensureMasterStyleLink, |
| 8 | hasUniqueMasterStyleLink, |
| 9 | isMasterElementsDisabled, |
| 10 | setMasterElementsDisabled, |
| 11 | setMasterPageNumber |
| 12 | } from '../presentation/html/master-link' |
| 13 | import { |
| 14 | copyProjectFontResources, |
| 15 | resolveProjectFontResources |
| 16 | } from '../presentation/fonts/font-registry' |
| 17 | import type { IpcContext } from '../ipc/context' |
| 18 | import { |
| 19 | getMasterFontFamilies, |
| 20 | MASTER_CSS_RELATIVE_PATH, |
| 21 | MASTER_HTML_RELATIVE_PATH, |
| 22 | normalizeMasterConfig, |
| 23 | type SessionMasterConfig, |
| 24 | type SessionMasterStatus |
| 25 | } from '@shared/master' |
| 26 | import { |
| 27 | MASTER_LAYOUTS_RELATIVE_PATH, |
| 28 | normalizeSessionLayoutLibrary, |
| 29 | type SessionLayoutLibrary, |
| 30 | type SessionLayoutLibraryStatus |
| 31 | } from '@shared/layout-master' |
| 32 | import { |
| 33 | getSessionMasterHtmlPath, |
| 34 | getSessionMasterLayoutsPath, |
| 35 | getSessionMasterPath, |
| 36 | readSessionLayoutLibrary, |
| 37 | readSessionMaster, |
| 38 | writeSessionLayoutLibrary, |
| 39 | writeSessionMaster |
| 40 | } from './master-service' |
| 41 | |
| 42 | type FileSnapshot = { |
| 43 | path: string |
| 44 | exists: boolean |
| 45 | content?: Buffer |
| 46 | } |
| 47 | |
| 48 | type ExistingPage = { |
| 49 | record: SessionPageRecord |
| 50 | htmlPath: string |
| 51 | html: string |
| 52 | } |
| 53 | |
| 54 | type PageCounts = Pick< |
| 55 | SessionMasterStatus, |
| 56 | 'linkedPageCount' | 'unlinkedPageCount' | 'missingPageCount' | 'totalPageCount' |
| 57 | > |
| 58 | |
| 59 | const sessionLocks = new Map<string, Promise<void>>() |
| 60 | |
| 61 | const runExclusive = async <T>(sessionId: string, task: () => Promise<T>): Promise<T> => { |
| 62 | let release: () => void = () => undefined |
| 63 | const current = new Promise<void>((resolve) => { |
| 64 | release = resolve |
| 65 | }) |
| 66 | const previous = sessionLocks.get(sessionId) || Promise.resolve() |
| 67 | sessionLocks.set(sessionId, current) |
| 68 | await previous |
| 69 | try { |
| 70 | return await task() |
| 71 | } finally { |
| 72 | release() |
| 73 | if (sessionLocks.get(sessionId) === current) sessionLocks.delete(sessionId) |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | const isInside = (candidate: string, root: string): boolean => { |
| 78 | const relative = path.relative(root, candidate) |
| 79 | return relative === '' || (!relative.startsWith('..') && !path.isAbsolute(relative)) |
| 80 | } |
| 81 | |
| 82 | const readSnapshot = async (filePath: string): Promise<FileSnapshot> => { |
| 83 | try { |
| 84 | return { path: filePath, exists: true, content: await fs.promises.readFile(filePath) } |
| 85 | } catch (error) { |
| 86 | if ((error as NodeJS.ErrnoException).code === 'ENOENT') return { path: filePath, exists: false } |
| 87 | throw error |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | const writeAtomically = async (filePath: string, content: string | Buffer): Promise<void> => { |
| 92 | const tempPath = `${filePath}.${crypto.randomUUID()}.tmp` |
| 93 | await fs.promises.mkdir(path.dirname(filePath), { recursive: true }) |
| 94 | try { |
| 95 | await fs.promises.writeFile(tempPath, content) |
| 96 | await fs.promises.rename(tempPath, filePath) |
| 97 | } finally { |
| 98 | await fs.promises.rm(tempPath, { force: true }).catch(() => undefined) |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | const restoreSnapshot = async (snapshot: FileSnapshot): Promise<void> => { |
| 103 | if (!snapshot.exists) { |
| 104 | await fs.promises.rm(snapshot.path, { force: true }) |
| 105 | return |
| 106 | } |
| 107 | await writeAtomically(snapshot.path, snapshot.content || Buffer.alloc(0)) |
| 108 | } |
| 109 | |
| 110 | const getRevision = (css: string): string => |
| 111 | crypto.createHash('sha256').update(css, 'utf8').digest('hex') |
| 112 | |
| 113 | const assertMutableSession = (ctx: IpcContext, sessionId: string): void => { |
| 114 | const runState = ctx.sessionRunStates.get(sessionId) |
| 115 | if (runState?.status === 'queued' || runState?.status === 'running') { |
| 116 | throw new Error('当前会话正在生成或编辑，暂时不能修改母版。') |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | const resolveExistingPages = async ( |
| 121 | projectDir: string, |
| 122 | records: SessionPageRecord[] |
| 123 | ): Promise<{ pages: ExistingPage[]; missingPageCount: number }> => { |
| 124 | const projectRoot = await fs.promises.realpath(projectDir) |
| 125 | const pages: ExistingPage[] = [] |
| 126 | let missingPageCount = 0 |
| 127 | for (const record of records) { |
| 128 | const rawPath = typeof record.html_path === 'string' ? record.html_path.trim() : '' |
| 129 | const candidate = path.resolve(projectRoot, rawPath || `${record.file_slug}.html`) |
| 130 | try { |
| 131 | const htmlPath = await fs.promises.realpath(candidate) |
| 132 | if (!isInside(htmlPath, projectRoot)) { |
| 133 | missingPageCount += 1 |
| 134 | continue |
| 135 | } |
| 136 | pages.push({ record, htmlPath, html: await fs.promises.readFile(htmlPath, 'utf-8') }) |
| 137 | } catch { |
| 138 | missingPageCount += 1 |
| 139 | } |
| 140 | } |
| 141 | return { pages, missingPageCount } |
| 142 | } |
| 143 | |
| 144 | const summarizePages = async ( |
| 145 | projectDir: string, |
| 146 | records: SessionPageRecord[], |
| 147 | masterExists: boolean |
| 148 | ): Promise<PageCounts> => { |
| 149 | const { pages, missingPageCount } = await resolveExistingPages(projectDir, records) |
| 150 | const linkedPageCount = masterExists |
| 151 | ? pages.filter((page) => hasUniqueMasterStyleLink(page.html)).length |
| 152 | : 0 |
| 153 | return { |
| 154 | linkedPageCount, |
| 155 | unlinkedPageCount: pages.length - linkedPageCount, |
| 156 | missingPageCount, |
| 157 | totalPageCount: records.length |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | const getStatus = async ( |
| 162 | ctx: IpcContext, |
| 163 | sessionId: string, |
| 164 | projectDir: string |
| 165 | ): Promise<SessionMasterStatus> => { |
| 166 | const [master, records] = await Promise.all([ |
| 167 | readSessionMaster(projectDir), |
| 168 | ctx.db.listSessionPages(sessionId) |
| 169 | ]) |
| 170 | return { |
| 171 | ...master, |
| 172 | revision: getRevision(`${master.css}\n${master.html}`), |
| 173 | ...(await summarizePages(projectDir, records, master.exists)), |
| 174 | disabledPageIds: (await resolveExistingPages(projectDir, records)).pages |
| 175 | .filter((page) => isMasterElementsDisabled(page.html)) |
| 176 | .map((page) => page.record.id) |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | const getAllowedPaths = async (projectDir: string, pages: ExistingPage[]): Promise<string[]> => { |
| 181 | const root = await fs.promises.realpath(projectDir) |
| 182 | return [ |
| 183 | MASTER_CSS_RELATIVE_PATH, |
| 184 | MASTER_HTML_RELATIVE_PATH, |
| 185 | ...pages.map((page) => path.relative(root, page.htmlPath).split(path.sep).join('/')) |
| 186 | ] |
| 187 | } |
| 188 | |
| 189 | const getFontAllowedPaths = async ( |
| 190 | projectDir: string, |
| 191 | resources: Awaited<ReturnType<typeof resolveProjectFontResources>> |
| 192 | ): Promise<string[]> => { |
| 193 | const root = path.resolve(projectDir) |
| 194 | return resources.assets |
| 195 | .map((asset) => path.relative(root, path.resolve(asset.targetPath)).split(path.sep).join('/')) |
| 196 | .filter((relativePath) => relativePath.startsWith('assets/fonts/')) |
| 197 | } |
| 198 | |
| 199 | const getBackgroundImageAllowedPaths = async ( |
| 200 | projectDir: string, |
| 201 | config: SessionMasterConfig |
| 202 | ): Promise<string[]> => { |
| 203 | if (config.backgroundStyle !== 'image' || !config.backgroundImage) return [] |
| 204 | const projectRoot = await fs.promises.realpath(projectDir) |
| 205 | const imageRootPath = path.resolve(projectRoot, 'images') |
| 206 | const imagePath = path.resolve(projectRoot, config.backgroundImage) |
| 207 | const relativePath = path.relative(projectRoot, imagePath).split(path.sep).join('/') |
| 208 | if (!relativePath.startsWith('images/') || !isInside(imagePath, imageRootPath)) { |
| 209 | throw new Error('母版背景图片路径无效。') |
| 210 | } |
| 211 | const [imageRoot, imageStat] = await Promise.all([ |
| 212 | fs.promises.realpath(imageRootPath).catch(() => ''), |
| 213 | fs.promises.lstat(imagePath).catch(() => null) |
| 214 | ]) |
| 215 | if ( |
| 216 | !imageRoot || |
| 217 | !isInside(imageRoot, projectRoot) || |
| 218 | !imageStat?.isFile() || |
| 219 | imageStat.isSymbolicLink() |
| 220 | ) { |
| 221 | throw new Error('母版背景图片不存在或不安全。') |
| 222 | } |
| 223 | const resolvedImagePath = await fs.promises.realpath(imagePath).catch(() => '') |
| 224 | if (!resolvedImagePath || !isInside(resolvedImagePath, imageRoot)) { |
| 225 | throw new Error('母版背景图片不存在或不安全。') |
| 226 | } |
| 227 | return [relativePath] |
| 228 | } |
| 229 | |
| 230 | const getMasterElementImageAllowedPaths = async ( |
| 231 | projectDir: string, |
| 232 | config: SessionMasterConfig |
| 233 | ): Promise<string[]> => { |
| 234 | const elements = normalizeMasterConfig(config).elements |
| 235 | if (!elements?.logoImage) return [] |
| 236 | const projectRoot = await fs.promises.realpath(projectDir) |
| 237 | const imageRootPath = path.resolve(projectRoot, 'images') |
| 238 | const imagePath = path.resolve(projectRoot, elements.logoImage) |
| 239 | const relativePath = path.relative(projectRoot, imagePath).split(path.sep).join('/') |
| 240 | if (!relativePath.startsWith('images/') || !isInside(imagePath, imageRootPath)) { |
| 241 | throw new Error('母版 Logo 图片路径无效。') |
| 242 | } |
| 243 | const [imageRoot, imageStat] = await Promise.all([ |
| 244 | fs.promises.realpath(imageRootPath).catch(() => ''), |
| 245 | fs.promises.lstat(imagePath).catch(() => null) |
| 246 | ]) |
| 247 | if ( |
| 248 | !imageRoot || |
| 249 | !isInside(imageRoot, projectRoot) || |
| 250 | !imageStat?.isFile() || |
| 251 | imageStat.isSymbolicLink() |
| 252 | ) { |
| 253 | throw new Error('母版 Logo 图片不存在或不安全。') |
| 254 | } |
| 255 | const resolvedImagePath = await fs.promises.realpath(imagePath).catch(() => '') |
| 256 | if (!resolvedImagePath || !isInside(resolvedImagePath, imageRoot)) { |
| 257 | throw new Error('母版 Logo 图片不存在或不安全。') |
| 258 | } |
| 259 | return [relativePath] |
| 260 | } |
| 261 | |
| 262 | const rewriteUnlinkedPages = (pages: ExistingPage[]): Array<{ path: string; html: string }> => |
| 263 | pages |
| 264 | .map((page) => ({ |
| 265 | path: page.htmlPath, |
| 266 | html: setMasterPageNumber(ensureMasterStyleLink(page.html), page.record.page_number) |
| 267 | })) |
| 268 | .filter((page, index) => page.html !== pages[index]?.html) |
| 269 | |
| 270 | const restoreAll = async (snapshots: FileSnapshot[]): Promise<void> => { |
| 271 | for (const snapshot of [...snapshots].reverse()) await restoreSnapshot(snapshot) |
| 272 | } |
| 273 | |
| 274 | export async function getSessionMasterStatus( |
| 275 | ctx: IpcContext, |
| 276 | sessionId: string |
| 277 | ): Promise<SessionMasterStatus> { |
| 278 | const projectDir = await ctx.resolveSessionProjectDir(sessionId) |
| 279 | return getStatus(ctx, sessionId, projectDir) |
| 280 | } |
| 281 | |
| 282 | export async function getSessionLayoutLibraryStatus( |
| 283 | ctx: IpcContext, |
| 284 | sessionId: string |
| 285 | ): Promise<SessionLayoutLibraryStatus> { |
| 286 | const projectDir = await ctx.resolveSessionProjectDir(sessionId) |
| 287 | const result = await readSessionLayoutLibrary(projectDir) |
| 288 | return { |
| 289 | ...result, |
| 290 | revision: getRevision(JSON.stringify(result.library)) |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | export async function saveSessionLayoutLibrary( |
| 295 | ctx: IpcContext, |
| 296 | sessionId: string, |
| 297 | library: SessionLayoutLibrary |
| 298 | ): Promise<SessionLayoutLibraryStatus> { |
| 299 | return runExclusive(sessionId, async () => { |
| 300 | assertMutableSession(ctx, sessionId) |
| 301 | const projectDir = await ctx.resolveSessionProjectDir(sessionId) |
| 302 | const history = new GitHistoryService(ctx.db) |
| 303 | await history.ensureBaseline(sessionId, projectDir) |
| 304 | const snapshot = await readSnapshot(getSessionMasterLayoutsPath(projectDir)) |
| 305 | try { |
| 306 | const result = await writeSessionLayoutLibrary( |
| 307 | projectDir, |
| 308 | normalizeSessionLayoutLibrary(library) |
| 309 | ) |
| 310 | const operation = await history.recordOperation({ |
| 311 | sessionId, |
| 312 | projectDir, |
| 313 | type: 'edit', |
| 314 | scope: 'session', |
| 315 | prompt: '更新演示版式母版', |
| 316 | metadata: { feature: 'layout-master', action: 'save-layout-mappings' }, |
| 317 | allowedPaths: [MASTER_LAYOUTS_RELATIVE_PATH] |
| 318 | }) |
| 319 | try { |
| 320 | return { |
| 321 | ...result, |
| 322 | revision: getRevision(JSON.stringify(result.library)) |
| 323 | } |
| 324 | } catch (error) { |
| 325 | if (operation) { |
| 326 | await history.rollbackCommittedOperation({ |
| 327 | sessionId, |
| 328 | projectDir, |
| 329 | operation, |
| 330 | allowedPaths: [MASTER_LAYOUTS_RELATIVE_PATH], |
| 331 | reason: error instanceof Error ? error.message : String(error) |
| 332 | }) |
| 333 | } |
| 334 | throw error |
| 335 | } |
| 336 | } catch (error) { |
| 337 | await restoreSnapshot(snapshot).catch(() => undefined) |
| 338 | throw error |
| 339 | } |
| 340 | }) |
| 341 | } |
| 342 | |
| 343 | export async function saveSessionMaster( |
| 344 | ctx: IpcContext, |
| 345 | sessionId: string, |
| 346 | config: SessionMasterConfig |
| 347 | ): Promise<SessionMasterStatus> { |
| 348 | return runExclusive(sessionId, async () => { |
| 349 | assertMutableSession(ctx, sessionId) |
| 350 | const normalizedConfig = normalizeMasterConfig(config) |
| 351 | const projectDir = await ctx.resolveSessionProjectDir(sessionId) |
| 352 | const history = new GitHistoryService(ctx.db) |
| 353 | await history.ensureBaseline(sessionId, projectDir) |
| 354 | const records = await ctx.db.listSessionPages(sessionId) |
| 355 | const { pages, missingPageCount } = await resolveExistingPages(projectDir, records) |
| 356 | if (missingPageCount > 0) throw new Error('存在缺失或不安全的页面文件，无法保存并应用母版。') |
| 357 | const fontResources = await resolveProjectFontResources( |
| 358 | getMasterFontFamilies(normalizedConfig), |
| 359 | projectDir |
| 360 | ) |
| 361 | const backgroundImageAllowedPaths = await getBackgroundImageAllowedPaths( |
| 362 | projectDir, |
| 363 | normalizedConfig |
| 364 | ) |
| 365 | const masterElementImageAllowedPaths = await getMasterElementImageAllowedPaths( |
| 366 | projectDir, |
| 367 | normalizedConfig |
| 368 | ) |
| 369 | const masterSnapshot = await readSnapshot(getSessionMasterPath(projectDir)) |
| 370 | const masterHtmlSnapshot = await readSnapshot(getSessionMasterHtmlPath(projectDir)) |
| 371 | const rewrittenPages = rewriteUnlinkedPages(pages) |
| 372 | const pageSnapshots = await Promise.all(rewrittenPages.map((page) => readSnapshot(page.path))) |
| 373 | const fontSnapshots = await Promise.all( |
| 374 | fontResources.assets.map((asset) => readSnapshot(asset.targetPath)) |
| 375 | ) |
| 376 | const allowedPaths = [ |
| 377 | ...(await getAllowedPaths(projectDir, pages)), |
| 378 | ...(await getFontAllowedPaths(projectDir, fontResources)), |
| 379 | ...backgroundImageAllowedPaths, |
| 380 | ...masterElementImageAllowedPaths |
| 381 | ] |
| 382 | try { |
| 383 | await copyProjectFontResources(fontResources) |
| 384 | await writeSessionMaster(projectDir, normalizedConfig, fontResources.css) |
| 385 | for (const page of rewrittenPages) await writeAtomically(page.path, page.html) |
| 386 | const operation = await history.recordOperation({ |
| 387 | sessionId, |
| 388 | projectDir, |
| 389 | type: 'edit', |
| 390 | scope: 'session', |
| 391 | prompt: '修改并应用演示母版', |
| 392 | metadata: { feature: 'slide-master', action: 'save-and-apply' }, |
| 393 | allowedPaths |
| 394 | }) |
| 395 | try { |
| 396 | return await getStatus(ctx, sessionId, projectDir) |
| 397 | } catch (error) { |
| 398 | if (operation) { |
| 399 | await history.rollbackCommittedOperation({ |
| 400 | sessionId, |
| 401 | projectDir, |
| 402 | operation, |
| 403 | allowedPaths, |
| 404 | reason: error instanceof Error ? error.message : String(error) |
| 405 | }) |
| 406 | } |
| 407 | throw error |
| 408 | } |
| 409 | } catch (error) { |
| 410 | await restoreAll([ |
| 411 | masterSnapshot, |
| 412 | masterHtmlSnapshot, |
| 413 | ...pageSnapshots, |
| 414 | ...fontSnapshots |
| 415 | ]).catch(() => undefined) |
| 416 | throw error |
| 417 | } |
| 418 | }) |
| 419 | } |
| 420 | |
| 421 | export async function setSessionMasterPageOverride( |
| 422 | ctx: IpcContext, |
| 423 | sessionId: string, |
| 424 | pageId: string, |
| 425 | disabled: boolean |
| 426 | ): Promise<{ disabled: boolean }> { |
| 427 | return runExclusive(sessionId, async () => { |
| 428 | assertMutableSession(ctx, sessionId) |
| 429 | const projectDir = await ctx.resolveSessionProjectDir(sessionId) |
| 430 | const records = await ctx.db.listSessionPages(sessionId) |
| 431 | const { pages, missingPageCount } = await resolveExistingPages(projectDir, records) |
| 432 | if (missingPageCount > 0) throw new Error('存在缺失或不安全的页面文件，无法更新页面母版设置。') |
| 433 | const page = pages.find( |
| 434 | (item) => item.record.id === pageId || item.record.file_slug === pageId || item.record.legacy_page_id === pageId |
| 435 | ) |
| 436 | if (!page) throw new Error('未找到要更新的页面。') |
| 437 | if (isMasterElementsDisabled(page.html) === disabled) return { disabled } |
| 438 | |
| 439 | const history = new GitHistoryService(ctx.db) |
| 440 | await history.ensureBaseline(sessionId, projectDir) |
| 441 | const snapshot = await readSnapshot(page.htmlPath) |
| 442 | const html = setMasterElementsDisabled(page.html, disabled) |
| 443 | const root = await fs.promises.realpath(projectDir) |
| 444 | const allowedPaths = [path.relative(root, page.htmlPath).split(path.sep).join('/')] |
| 445 | try { |
| 446 | await writeAtomically(page.htmlPath, html) |
| 447 | await history.recordOperation({ |
| 448 | sessionId, |
| 449 | projectDir, |
| 450 | type: 'edit', |
| 451 | scope: 'page', |
| 452 | prompt: disabled ? '隐藏本页母版全局元素' : '显示本页母版全局元素', |
| 453 | metadata: { feature: 'slide-master', action: 'set-page-elements-override', disabled }, |
| 454 | allowedPaths |
| 455 | }) |
| 456 | return { disabled } |
| 457 | } catch (error) { |
| 458 | await restoreSnapshot(snapshot).catch(() => undefined) |
| 459 | throw error |
| 460 | } |
| 461 | }) |
| 462 | } |
| 463 |