File size: 15,632 Bytes
2c1d035 f62633d 2c1d035 2c61080 2c1d035 2c61080 2c1d035 93807fb 2c1d035 93807fb 2c1d035 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 | export function createReaderSource(readerContext) {
function readerContentUrl(url) {
try {
const parsed = new URL(url, location.href);
if (parsed.origin === location.origin && parsed.pathname === "/api/reader-bucket-resource")
return parsed.href;
if (parsed.origin === "https://huggingface.co" && !parsed.username && !parsed.password && !parsed.search && !parsed.hash) {
const prefix = /^\/buckets\/(vomebook\/(?:pdf-pages-v2|reader-assets-v2))\/resolve\//.exec(parsed.pathname);
const path = prefix && decodeURIComponent(parsed.pathname.slice(prefix[0].length));
if (path && VoiceOfMLReader.isBucketPath(path, true, prefix[1]))
return `/api/reader-bucket-resource?path=${encodeURIComponent(path)}`;
}
} catch (_) {}
return `/api/reader-content?url=${encodeURIComponent(url)}`;
}
function readerDownloadApiUrl(path) {
return path;
}
function readerDownloadUrl(filename, link) {
return readerContext.readerDownloadApiUrl(`/api/download?file=${encodeURIComponent(filename || "file")}&link=${encodeURIComponent(link || "")}`);
}
async function startReaderDownload(event) {
event.preventDefault();
const button = event.currentTarget;
if (button.hasAttribute("aria-busy")) return;
readerContext.showDownloadFeedback("正在准备下载…", 0);
const controller = new AbortController();
let timer;
button.setAttribute("aria-busy", "true");
try {
// ID-only links share the Reader's in-flight resolution, not its render phase.
if (!readerContext.downloadUrl) await readerContext.readerSourcePromise;
if (!readerContext.downloadUrl) throw new Error("无法获取原文件地址");
const filename = readerContext.documentState.title || "file";
const checkUrl = readerContext.readerDownloadApiUrl(`/api/download/check?link=${encodeURIComponent(readerContext.downloadUrl)}`);
timer = setTimeout(() => controller.abort(), 8000);
const response = await fetch(checkUrl, { signal: controller.signal, cache: "no-store" });
const result = await response.json().catch(() => null);
if (!response.ok || result?.ok !== true) throw new Error(result?.error || "下载检查失败，请重试");
if (readerContext.readerLifecycle.disposed) return;
const frame = document.createElement("iframe");
frame.hidden = true;
frame.setAttribute("aria-hidden", "true");
frame.src = readerContext.readerDownloadUrl(filename, readerContext.downloadUrl);
document.body.appendChild(frame);
setTimeout(() => frame.remove(), 60000);
readerContext.showDownloadFeedback("已发起下载");
} catch (error) {
if (!readerContext.readerLifecycle.disposed) {
readerContext.showDownloadFeedback(error?.name === "AbortError" ? "下载检查超时，请重试" : (error.message || "下载失败，请重试"));
}
} finally {
clearTimeout(timer);
button.removeAttribute("aria-busy");
}
}
function normalizeSourceUrl(url) {
return url.startsWith("/api/reader-bucket-resource?") ? new URL(url, location.origin).href : url;
}
async function resolveReaderId(id) {
const endpoint = `/api/reader-resolve?id=${encodeURIComponent(id)}`;
for (let attempt = 0; attempt < 2; attempt++) {
const early = window.__VOICE_READER_RESOLVE__;
if (!attempt && early?.id === id) {
window.__VOICE_READER_RESOLVE__ = null;
const untrack = readerContext.trackReaderResource(early.dispose);
let result;
try { result = await readerContext.awaitReader(early.promise); }
catch (error) {
readerContext.assertReaderActive();
if (!["TimeoutError", "TypeError"].includes(error?.name)) throw error;
continue;
}
finally { untrack(); early.dispose(); }
if (result.ok) return result.data;
if (![408, 429, 500, 502, 503, 504].includes(result.status))
throw new Error(`HTTP ${result.status}`);
await readerContext.waitForReader(350);
continue;
}
const response = await readerContext.readerRequestManager.requestBuffered(
endpoint, readerContext.READER_PROXY_TIMEOUT_MS, VoiceOfMLReaderSecurity.LIMITS.manifestBytes);
if (response.ok) return response.json();
await response.body?.cancel();
if (![408, 429, 500, 502, 503, 504].includes(response.status) || attempt)
throw new Error(`HTTP ${response.status}`);
await readerContext.waitForReader(350);
}
throw new Error("Reader ID resolution failed");
}
function applyReaderMetadata(data) {
if (data) readerContext.resolvedReaderData = { ...(readerContext.resolvedReaderData || {}), ...data };
if (data?.ReaderOcrManifest || data?.ocr_manifest) {
readerContext.ocrManifestUrl = data.ReaderOcrManifest || data.ocr_manifest;
readerContext.params.set("ocr_manifest", readerContext.ocrManifestUrl);
}
readerContext.readerRuntime.update("source", { metadata: readerContext.resolvedReaderData });
const title = String(readerContext.resolvedReaderData?.title || readerContext.params.get("title") || readerContext.sourceName).trim();
const suffix = String(
readerContext.resolvedReaderData?.original_extension || (readerContext.extension === "pdf-pages" ? "pdf" : readerContext.extension)
)
.toLowerCase()
.replace(/^\./, "");
const value = title + (suffix && !title.toLowerCase().endsWith(`.${suffix}`) ? `.${suffix}` : "");
readerContext.updateDocumentState({ title: value });
document.querySelector("#title").textContent = value;
document.title = `${value} - VoiceOfML Reader`;
readerContext.applyReaderPathMetadata(readerContext.resolvedReaderData);
}
function applyReaderPathMetadata(data) {
const folder = Array.isArray(data?.folder) ? data.folder.join("/") : String(data?.folder || "");
const value = String(
data?.path || [data?.repo, folder].filter(Boolean).join("/") || readerContext.readerPathLabel
).replace(/^\/+|\/+$/g, "");
readerContext.folderNavigationTarget = null;
try {
const target = new URL(readerContext.folderReturnUrl, location.origin);
if (
readerContext.folderReturnUrl &&
target.origin === location.origin &&
target.pathname.split("/").filter(Boolean).length === 1
)
readerContext.folderNavigationTarget = target;
} catch (_) {}
if (!readerContext.folderNavigationTarget && data?.repo) {
readerContext.folderNavigationTarget = new URL("/" + encodeURIComponent(data.repo), location.origin);
if (folder) readerContext.folderNavigationTarget.searchParams.set("folder_self", folder);
}
readerContext.readerPath.textContent = value;
readerContext.readerPath.hidden = !value;
readerContext.readerPath.disabled = !readerContext.folderNavigationTarget;
readerContext.readerPath.setAttribute("aria-label", `筛选文件夹：${value}`);
}
function validSource(raw) {
try {
const url = new URL(raw);
const bucketPath = url.searchParams.get("path") || "";
if (
(url.origin === location.origin || url.origin === "https://voiceofml-search.hf.space") &&
url.pathname === "/api/reader-bucket-resource" &&
url.searchParams.getAll("path").length === 1 &&
[...url.searchParams.keys()].every((key) => key === "path") &&
(VoiceOfMLReader.isBucketPath(bucketPath, true, "vomebook/pdf-pages-v2") ||
VoiceOfMLReader.isBucketPath(bucketPath, true, "vomebook/reader-assets-v2"))
)
return true;
if (url.protocol === "https:" && url.hostname === "huggingface.co" &&
(url.pathname.startsWith("/buckets/vomebook/pdf-pages-v2/resolve/") ||
url.pathname.startsWith("/buckets/vomebook/reader-assets-v2/resolve/")) && !url.search && !url.hash) {
const prefix = url.pathname.startsWith("/buckets/vomebook/pdf-pages-v2/resolve/")
? "/buckets/vomebook/pdf-pages-v2/resolve/"
: "/buckets/vomebook/reader-assets-v2/resolve/";
const path = decodeURIComponent(url.pathname.slice(prefix.length));
const bucket = prefix.includes("pdf-pages-v2") ? "vomebook/pdf-pages-v2" : "vomebook/reader-assets-v2";
return VoiceOfMLReader.isBucketPath(path, true, bucket);
}
if (url.protocol !== "https:" || !["huggingface.co", "hf-mirror.com"].includes(url.hostname))
return false;
const readerAsset = VoiceOfMLReader.isAssetSourcePath(url.pathname);
return /^\/datasets\/VoiceOfML\/[^/]+\/(resolve|raw)\//.test(url.pathname) || readerAsset;
} catch (_) {
return false;
}
}
function validOcr(raw) {
try {
const url = new URL(raw, location.origin);
return url.origin === location.origin && url.pathname.startsWith("/txt/");
} catch (_) {
return false;
}
}
function validFallback(raw) {
try {
const url = new URL(raw);
return (
url.protocol === "https:" &&
["huggingface.co", "hf-mirror.com"].includes(url.hostname) &&
/\/datasets\/vomebook\/Reader-Assets\/resolve\/[^/]+\/objects\/[0-9a-f]{2}\/[0-9a-f]{64}\/(?:linearized\.pdf|(?:[a-z0-9-]+\/)?document\.pdf)$/.test(
url.pathname
)
);
} catch (_) {
return false;
}
}
function readerAssetObjectFamily(raw, base = location.href) {
try {
const url = new URL(raw, base);
if (url.origin === "https://voiceofml-search.hf.space" && url.pathname === "/api/reader-bucket-resource") {
const bucketPath = url.searchParams.get("path") || "";
const match = bucketPath.match(/^(chapters\/ebook\/(?:epub|mobi|azw3|fb2|chm)\/[0-9a-f]{64}\/[0-9a-f]{16}\/)/);
if (url.hash || url.searchParams.getAll("path").length !== 1 ||
[...url.searchParams.keys()].some((key) => key !== "path") || !match ||
!VoiceOfMLReader.isBucketPath(bucketPath, true, "vomebook/reader-assets-v2")) return null;
return { url, prefix: match[1], bucket: true, bucketPath };
}
if (
url.protocol !== "https:" ||
!["huggingface.co", "hf-mirror.com"].includes(url.hostname) ||
url.username ||
url.password
)
return null;
const match = url.pathname.match(
/^\/datasets\/vomebook\/Reader-Assets\/resolve\/[^/]+\/(objects\/[0-9a-f]{2}\/[0-9a-f]{64}\/(?:[a-z0-9-]+\/)?)/
);
return match
? { url, prefix: url.pathname.slice(0, url.pathname.indexOf(match[1])) + match[1], bucket: false }
: null;
} catch (_) {
return null;
}
}
function trustedReaderAssetManifestUrl(raw) {
const family = readerContext.readerAssetObjectFamily(raw);
const manifestPath = family?.bucket ? family.bucketPath : family?.url.pathname;
return family &&
(family.bucket || !family.url.search) &&
(family.bucket || !family.url.hash) &&
/\/chapter-manifest\.json$/i.test(manifestPath || "")
? family.url.href
: null;
}
function trustedChapterUrl(raw, base) {
const manifest = readerContext.readerAssetObjectFamily(base);
const manifestPath = manifest?.bucket ? manifest.bucketPath : new URL(base, location.href).pathname;
if (!manifest || !/\/chapter-manifest\.json$/i.test(manifestPath))
return null;
try {
if (manifest.bucket) {
const url = new URL(String(raw || ""), `https://bucket.invalid/${manifest.bucketPath}`);
const path = decodeURIComponent(url.pathname.slice(1));
if (url.origin !== "https://bucket.invalid" || url.search || url.hash ||
!path.startsWith(manifest.prefix) ||
!/(?:\/chapters\/chapter-[0-9]{4}\.xhtml|\/epub-search-index\.json\.gz)$/i.test(path) ||
!VoiceOfMLReader.isBucketPath(path, true, "vomebook/reader-assets-v2")) return null;
return `${manifest.url.origin}/api/reader-bucket-resource?path=${encodeURIComponent(path)}`;
}
const url = new URL(raw, base);
return !url.search &&
!url.hash &&
url.origin === manifest.url.origin &&
url.pathname.startsWith(manifest.prefix) &&
/(?:\.(?:xhtml?|html?)|\/epub-search-index\.json\.gz)$/i.test(url.pathname)
? url.href
: null;
} catch (_) {
return null;
}
}
function trustedChapterReferenceUrl(raw, base, manifestBase) {
const family = readerContext.readerAssetObjectFamily(manifestBase);
if (!family) return null;
try {
if (family.bucket) {
const current = readerContext.readerAssetObjectFamily(base);
if (!current?.bucket) return null;
const url = new URL(String(raw || ""), `https://bucket.invalid/${current.bucketPath}`);
const path = decodeURIComponent(url.pathname.slice(1));
if (url.origin !== "https://bucket.invalid" || url.search ||
!path.startsWith(family.prefix) || !/\/chapters\/chapter-[0-9]{4}\.xhtml$/i.test(path) ||
!VoiceOfMLReader.isBucketPath(path, true, "vomebook/reader-assets-v2")) return null;
return { url: `${family.url.origin}/api/reader-bucket-resource?path=${encodeURIComponent(path)}`,
fragment: url.hash };
}
const url = new URL(raw, base);
return !url.search && url.origin === family.url.origin && url.pathname.startsWith(family.prefix) &&
/\/(?:chapters\/)?[^/]+\.xhtml?$/i.test(url.pathname)
? { url: url.href, fragment: url.hash } : null;
} catch (_) {
return null;
}
}
function trustedChapterResourceUrl(raw, base, attribute, manifestBase) {
const value = String(raw || "").trim();
if (!value || /^(?:data:|mailto:|tel:|javascript:)/i.test(value)) return null;
// Chapters and resources can be siblings within the manifest's asset directory.
const family = readerContext.readerAssetObjectFamily(manifestBase);
if (!family) return null;
try {
if (family.bucket) {
const current = readerContext.readerAssetObjectFamily(base);
if (!current?.bucket) return null;
const url = new URL(value, `https://bucket.invalid/${current.bucketPath}`);
const path = decodeURIComponent(url.pathname.slice(1));
if (url.origin !== "https://bucket.invalid" || url.search || url.hash ||
!path.startsWith(family.prefix) || !VoiceOfMLReader.isBucketPath(path, true, "vomebook/reader-assets-v2")) return null;
const resource = `${family.url.origin}/api/reader-bucket-resource?path=${encodeURIComponent(path)}`;
return attribute === "href" ? resource : resource;
}
const url = new URL(value, base),
path = url.pathname.toLowerCase();
if (url.origin !== family.url.origin || !url.pathname.startsWith(family.prefix)) return null;
const allowed =
attribute === "href"
? /\.(?:x?html?|css|svg|png|jpe?g|gif|webp|woff2?|ttf|otf|mp3|mp4|m4a|webm|ogg)$/i.test(
path
)
: /\.(?:svg|png|jpe?g|gif|webp|woff2?|ttf|otf|mp3|mp4|m4a|webm|ogg)$/i.test(path);
return allowed ? url.href : null;
} catch (_) {
return null;
}
}
return {
readerContentUrl,
readerDownloadApiUrl,
readerDownloadUrl,
startReaderDownload,
normalizeSourceUrl,
resolveReaderId,
applyReaderMetadata,
applyReaderPathMetadata,
validSource,
validOcr,
validFallback,
readerAssetObjectFamily,
trustedReaderAssetManifestUrl,
trustedChapterUrl,
trustedChapterReferenceUrl,
trustedChapterResourceUrl
};
}
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