feat(desktop): add zhihu publish adapter

Ship a Zhihu publish adapter that reuses the shared session fetch and
image pipeline: converts markdown to HTML via marked, uploads cover
and inline images through Zhihu's image token flow, creates a draft,
and publishes it, returning external article URLs. Wire it into the
adapter barrel and runtime-controller's publish adapter selector so
Zhihu publish tasks stop falling through to the scaffold result.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-04-20 11:45:08 +08:00
parent dc68ad044c
commit 4d0c4510ef
3 changed files with 398 additions and 0 deletions
@@ -1,3 +1,4 @@
export * from "./base";
export * from "./doubao";
export * from "./toutiao";
export * from "./zhihu";
@@ -0,0 +1,393 @@
import { Buffer } from "node:buffer";
import { createHash, createHmac, randomUUID } from "node:crypto";
import type { JsonValue } from "@geo/shared-types";
import { marked } from "marked";
import {
extractImageSources,
fetchImageBlob,
normalizeRemoteUrl,
sessionCookieValue,
sessionFetchJson,
} from "./common";
import type { PublishAdapter } from "./base";
type ZhihuMeResponse = {
uid?: string;
id?: string;
name?: string;
avatar_url?: string;
};
type ZhihuImageTokenResponse = {
upload_file?: {
state?: number;
object_key?: string;
};
upload_token?: {
access_id?: string;
access_key?: string;
access_token?: string;
};
};
type ZhihuDraftCreateResponse = {
id?: string;
};
type ZhihuPublishResponse = {
code?: number;
};
function buildHeaders(headers?: HeadersInit): Headers {
const next = new Headers(headers);
if (!next.has("x-requested-with")) {
next.set("x-requested-with", "fetch");
}
return next;
}
async function zhihuFetch<T>(
context: Parameters<NonNullable<PublishAdapter["publish"]>>[0],
input: string,
init?: RequestInit,
): Promise<T> {
return await sessionFetchJson<T>(context.session, input, {
...init,
headers: buildHeaders(init?.headers),
});
}
function markdownToHtml(markdown: string): string {
const source = markdown.trim();
if (!source) {
return "";
}
return marked.parse(source, {
async: false,
gfm: true,
breaks: false,
}) as string;
}
function baseContent(article: Parameters<NonNullable<PublishAdapter["publish"]>>[0]["article"]): string {
const html = article.html_content?.trim();
if (html) {
return html;
}
return markdownToHtml(article.markdown_content ?? "");
}
function wrapStandaloneImages(html: string): string {
return html.replace(/<img([^>]+src="[^"]+"[^>]*)>/gi, "<figure><img$1></figure>");
}
function convertTablesToZhihuFormat(html: string): string {
let next = html;
next = next.replace(/<\/thead>\s*<tbody>/gi, "");
next = next.replace(/<thead>/gi, "<tbody>");
next = next.replace(/<\/thead>/gi, "</tbody>");
next = next.replace(
/<table\b/gi,
'<table data-draft-node="block" data-draft-type="table" data-draft-padding="8"',
);
return next;
}
function transformContent(html: string): string {
let next = html.trim();
next = next.replace(/<section\b/gi, "<div").replace(/<\/section>/gi, "</div>");
next = next.replace(/<(script|style)[^>]*>[\s\S]*?<\/\1>/gi, "");
next = next.replace(/\sstyle="[^"]*"/gi, "");
next = next.replace(/\sdata-(?!draft)[a-z-]+="[^"]*"/gi, "");
next = next.replace(/<figure[^>]*>\s*(<img[\s\S]*?>)\s*<\/figure>/gi, "$1");
next = next.replace(/<pre><code class="language-([^"]+)">/gi, '<pre lang="$1"><code>');
next = wrapStandaloneImages(next);
next = convertTablesToZhihuFormat(next);
return next.trim();
}
function md5Hex(buffer: ArrayBuffer): string {
return createHash("md5").update(Buffer.from(buffer)).digest("hex");
}
function hmacSha1Base64(key: string, message: string): string {
return createHmac("sha1", key).update(message).digest("base64");
}
function randomTraceId(): string {
return `${Date.now()},${randomUUID()}`;
}
function buildPictureUrl(imageHash: string, mimeType: string): string {
const extension = mimeType.split("/")[1] || "png";
return `https://picx.zhimg.com/v2-${imageHash}.${extension}`;
}
async function uploadBinaryImage(
context: Parameters<NonNullable<PublishAdapter["publish"]>>[0],
sourceUrl: string,
): Promise<string | null> {
const blob = await fetchImageBlob(sourceUrl);
if (!blob || !blob.type.startsWith("image/")) {
return null;
}
const buffer = await blob.arrayBuffer();
const imageHash = md5Hex(buffer);
const token = await zhihuFetch<ZhihuImageTokenResponse>(context, "https://api.zhihu.com/images", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({
image_hash: imageHash,
source: "article",
}),
});
if (token.upload_file?.state === 2 && token.upload_file.object_key && token.upload_token) {
const ossDate = new Date().toUTCString();
const ossUserAgent = "aliyun-sdk-js/6.8.0 Chrome 139.0.0.0 on OS X 10.15.7 64-bit";
const stringToSign = `PUT\n\n${blob.type}\n${ossDate}\nx-oss-date:${ossDate}\nx-oss-security-token:${token.upload_token.access_token}\nx-oss-user-agent:${ossUserAgent}\n/zhihu-pics/v2-${imageHash}`;
const signature = hmacSha1Base64(token.upload_token.access_key || "", stringToSign);
const uploadResponse = await fetch(`https://zhihu-pics-upload.zhimg.com/${token.upload_file.object_key}`, {
method: "PUT",
headers: {
"content-type": blob.type,
"Accept-Language": "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2",
"x-oss-date": ossDate,
"x-oss-user-agent": ossUserAgent,
"x-oss-security-token": token.upload_token.access_token || "",
authorization: `OSS ${token.upload_token.access_id}:${signature}`,
},
body: blob,
});
if (!uploadResponse.ok) {
throw new Error(`zhihu_oss_upload_failed_${uploadResponse.status}`);
}
}
return buildPictureUrl(imageHash, blob.type);
}
async function processContentImages(
context: Parameters<NonNullable<PublishAdapter["publish"]>>[0],
html: string,
): Promise<string> {
const sources = extractImageSources(html);
if (!sources.length) {
return html;
}
let next = html;
const uploaded = new Map<string, string>();
for (const source of sources) {
if (/zhimg\.com/i.test(source)) {
continue;
}
const target = await uploadBinaryImage(context, source);
if (target) {
uploaded.set(source, target);
}
}
for (const [from, to] of uploaded.entries()) {
next = next.split(from).join(to);
}
return next;
}
async function detectZhihu(
context: Parameters<NonNullable<PublishAdapter["publish"]>>[0],
): Promise<ZhihuMeResponse | null> {
const me = await zhihuFetch<ZhihuMeResponse>(context, "https://www.zhihu.com/api/v4/me", {
method: "GET",
}).catch(() => null);
const uid = me?.uid || me?.id ? String(me?.uid || me?.id) : "";
if (!uid || !me?.name) {
return null;
}
return {
...me,
uid,
avatar_url: normalizeRemoteUrl(me.avatar_url) ?? undefined,
};
}
async function createDraft(
context: Parameters<NonNullable<PublishAdapter["publish"]>>[0],
titleImage: string | null,
): Promise<string> {
const title = context.article.title?.trim() || "未命名文章";
const transformedContent = transformContent(baseContent(context.article));
if (!transformedContent) {
throw new Error("article_content_empty");
}
context.reportProgress("zhihu.upload_content_images");
const content = await processContentImages(context, transformedContent);
context.reportProgress("zhihu.create_draft");
const created = await zhihuFetch<ZhihuDraftCreateResponse>(context, "https://zhuanlan.zhihu.com/api/articles/drafts", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({
delta_time: 0,
can_reward: false,
title,
content,
...(titleImage ? { titleImage } : {}),
}),
});
if (!created.id) {
throw new Error("zhihu_create_draft_failed");
}
return created.id;
}
async function publishDraft(
context: Parameters<NonNullable<PublishAdapter["publish"]>>[0],
draftId: string,
): Promise<boolean> {
const xsrfToken = await sessionCookieValue(context.session, "zhihu.com", "_xsrf");
context.reportProgress("zhihu.publish_draft");
const result = await zhihuFetch<ZhihuPublishResponse>(context, "https://www.zhihu.com/api/v4/content/publish", {
method: "POST",
headers: {
"content-type": "application/json",
"x-xsrftoken": xsrfToken,
},
body: JSON.stringify({
action: "article",
data: {
publish: {
traceId: randomTraceId(),
},
draft: {
disabled: 1,
id: draftId,
isPublished: false,
},
commentsPermission: {
comment_permission: "anyone",
},
creationStatement: {
disclaimer_type: "",
disclaimer_status: "",
},
contentsTables: {
table_of_contents_enabled: false,
},
commercialReportInfo: {
isReport: 0,
},
appreciate: {
can_reward: false,
tagline: "",
},
hybridInfo: {},
},
}),
});
return result.code === 0;
}
function buildResultPayload(
articleId: string,
mediaName: string,
externalManageUrl: string,
externalArticleUrl: string | null,
): Record<string, JsonValue> {
return {
platform: "zhihu",
media_name: mediaName,
external_article_id: articleId,
external_manage_url: externalManageUrl,
external_article_url: externalArticleUrl,
publish_type: "publish",
};
}
function buildFailureResult(error: unknown): ReturnType<PublishAdapter["publish"]> extends Promise<infer T> ? T : never {
const message = error instanceof Error ? error.message : String(error);
if (message === "article_content_empty") {
return {
status: "failed",
summary: "文章内容为空,无法推送到知乎。",
error: {
code: "article_content_empty",
message,
},
};
}
if (message === "zhihu_not_logged_in") {
return {
status: "failed",
summary: "知乎登录态失效,无法执行发布。",
error: {
code: "zhihu_not_logged_in",
message,
},
};
}
return {
status: "failed",
summary: "知乎发布失败。",
error: {
code: "zhihu_publish_failed",
message,
},
};
}
export const zhihuAdapter: PublishAdapter = {
platform: "zhihu",
executionMode: "session",
async publish(context) {
context.reportProgress("zhihu.detect_login");
const me = await detectZhihu(context);
if (!me?.uid || !me.name) {
return buildFailureResult(new Error("zhihu_not_logged_in"));
}
try {
context.reportProgress("zhihu.upload_cover");
const coverUrl = context.article.cover_asset_url?.trim() || null;
const titleImage = coverUrl ? await uploadBinaryImage(context, coverUrl) : null;
const draftId = await createDraft(context, titleImage);
const published = await publishDraft(context, draftId);
if (!published) {
return buildFailureResult(new Error("zhihu_publish_failed"));
}
const publishedUrl = `https://zhuanlan.zhihu.com/p/${draftId}`;
return {
status: "succeeded",
payload: buildResultPayload(draftId, me.name, `${publishedUrl}/edit`, publishedUrl),
summary: "知乎发布成功。",
};
} catch (error) {
return buildFailureResult(error);
}
},
};
@@ -13,6 +13,7 @@ import type {
import {
doubaoAdapter,
toutiaoAdapter,
zhihuAdapter,
type AdapterExecutionResult,
type MonitorAdapter,
type PublishAdapter,
@@ -1150,6 +1151,9 @@ function selectPublishAdapter(platform: string): PublishAdapter | null {
if (platform === toutiaoAdapter.platform) {
return toutiaoAdapter;
}
if (platform === zhihuAdapter.platform) {
return zhihuAdapter;
}
return null;
}