feat(zhihu): add interaction commands

README.md

@@ -132,6 +132,7 @@ git clone git@github.com:jackwener/opencli.git && cd opencli && npm install && n
 | **hupu** | `hot` `search` `detail` `mentions` `reply` `like` `unlike` |
 | **twitter** | `trending` `search` `timeline` `bookmarks` `post` `download` `profile` `article` `like` `likes` `notifications` `reply` `reply-dm` `thread` `follow` `unfollow` `followers` `following` `block` `unblock` `bookmark` `unbookmark` `delete` `hide-reply` `accept` |
 | **reddit** | `hot` `frontpage` `popular` `search` `subreddit` `read` `user` `user-posts` `user-comments` `upvote` `upvoted` `save` `saved` `comment` `subscribe` |
+| **zhihu** | `hot` `search` `question` `download` `follow` `like` `favorite` `comment` `answer` |
 | **amazon** | `bestsellers` `search` `product` `offer` `discussion` `movers-shakers` `new-releases` |
 | **1688** | `search` `item` `assets` `download` `store` |
 | **gemini** | `new` `ask` `image` `deep-research` `deep-research-result` |

README.zh-CN.md

@@ -149,7 +149,7 @@ npx skills add jackwener/opencli --skill opencli-oneshot     # 快速命令参
 | **xiaoe** | `courses` `detail` `catalog` `play-url` `content` | 浏览器 |
 | **apple-podcasts** | `search` `episodes` `top` | 公开 |
 | **xiaoyuzhou** | `podcast` `podcast-episodes` `episode` | 公开 |
-| **zhihu** | `hot` `search` `question` `download` | 浏览器 |
+| **zhihu** | `hot` `search` `question` `download` `follow` `like` `favorite` `comment` `answer` | 浏览器 |
 | **weixin** | `download` | 浏览器 |
 | **youtube** | `search` `video` `transcript` | 浏览器 |
 | **boss** | `search` `detail` `recommend` `joblist` `greet` `batchgreet` `send` `chatlist` `chatmsg` `invite` `mark` `exchange` `resume` `stats` | 浏览器 |

clis/zhihu/answer.test.ts

@@ -0,0 +1,103 @@
+import { describe, expect, it, vi } from 'vitest';
+import { getRegistry } from '@jackwener/opencli/registry';
+import './answer.js';
+
+describe('zhihu answer', () => {
+  it('rejects create mode when the current user already answered the question', async () => {
+    const cmd = getRegistry().get('zhihu/answer');
+    expect(cmd?.func).toBeTypeOf('function');
+
+    const page = {
+      goto: vi.fn().mockResolvedValue(undefined),
+      evaluate: vi.fn()
+        .mockResolvedValueOnce({ slug: 'alice' })
+        .mockResolvedValueOnce({ entryPathSafe: false, hasExistingAnswerByCurrentUser: true }),
+    } as any;
+
+    await expect(
+      cmd!.func!(page, { target: 'question:1', text: 'hello', execute: true }),
+    ).rejects.toMatchObject({ code: 'ACTION_NOT_AVAILABLE' });
+  });
+
+  it('rejects anonymous mode instead of toggling it', async () => {
+    const cmd = getRegistry().get('zhihu/answer');
+    const page = {
+      goto: vi.fn().mockResolvedValue(undefined),
+      evaluate: vi.fn()
+        .mockResolvedValueOnce({ slug: 'alice' })
+        .mockResolvedValueOnce({ entryPathSafe: true, hasExistingAnswerByCurrentUser: false })
+        .mockResolvedValueOnce({ editorState: 'fresh_empty', anonymousMode: 'on' }),
+    } as any;
+
+    await expect(
+      cmd!.func!(page, { target: 'question:1', text: 'hello', execute: true }),
+    ).rejects.toMatchObject({ code: 'ACTION_NOT_AVAILABLE' });
+  });
+
+  it('rejects when a unique safe answer composer cannot be proven', async () => {
+    const cmd = getRegistry().get('zhihu/answer');
+    const page = {
+      goto: vi.fn().mockResolvedValue(undefined),
+      evaluate: vi.fn()
+        .mockResolvedValueOnce({ slug: 'alice' })
+        .mockResolvedValueOnce({ entryPathSafe: false, hasExistingAnswerByCurrentUser: false }),
+    } as any;
+
+    await expect(
+      cmd!.func!(page, { target: 'question:1', text: 'hello', execute: true }),
+    ).rejects.toMatchObject({ code: 'ACTION_NOT_AVAILABLE' });
+  });
+
+  it('rejects when anonymous mode cannot be proven off', async () => {
+    const cmd = getRegistry().get('zhihu/answer');
+    const page = {
+      goto: vi.fn().mockResolvedValue(undefined),
+      evaluate: vi.fn()
+        .mockResolvedValueOnce({ slug: 'alice' })
+        .mockResolvedValueOnce({ entryPathSafe: true, hasExistingAnswerByCurrentUser: false })
+        .mockResolvedValueOnce({ editorState: 'fresh_empty', anonymousMode: 'unknown' }),
+    } as any;
+
+    await expect(
+      cmd!.func!(page, { target: 'question:1', text: 'hello', execute: true }),
+    ).rejects.toMatchObject({ code: 'ACTION_NOT_AVAILABLE' });
+  });
+
+  it('requires a side-effect-free entry path and exact editor content before publish', async () => {
+    const cmd = getRegistry().get('zhihu/answer');
+    const page = {
+      goto: vi.fn().mockResolvedValue(undefined),
+      evaluate: vi.fn()
+        .mockResolvedValueOnce({ slug: 'alice' })
+        .mockResolvedValueOnce({ entryPathSafe: true })
+        .mockResolvedValueOnce({ editorState: 'fresh_empty', anonymousMode: 'off' })
+        .mockResolvedValueOnce({ editorContent: 'hello', bodyMatches: true })
+        .mockResolvedValueOnce({
+          createdTarget: 'answer:1:2',
+          createdUrl: 'https://www.zhihu.com/question/1/answer/2',
+          authorIdentity: 'alice',
+          bodyMatches: true,
+        }),
+    } as any;
+
+    await expect(
+      cmd!.func!(page, { target: 'question:1', text: 'hello', execute: true }),
+    ).resolves.toEqual([
+      expect.objectContaining({
+        outcome: 'created',
+        created_target: 'answer:1:2',
+        created_url: 'https://www.zhihu.com/question/1/answer/2',
+        author_identity: 'alice',
+      }),
+    ]);
+
+    expect(page.evaluate.mock.calls[1][0]).toContain('composerCandidates.length === 1');
+    expect(page.evaluate.mock.calls[1][0]).not.toContain('writeAnswerButton');
+    expect(page.evaluate.mock.calls[1][0]).toContain('const readAnswerAuthorSlug = (node) =>');
+    expect(page.evaluate.mock.calls[1][0]).toContain('const answerAuthorScopeSelector = ".AuthorInfo, .AnswerItem-authorInfo, .ContentItem-meta, [itemprop=\\"author\\"]"');
+    expect(page.evaluate.mock.calls[1][0]).not.toContain("node.querySelector('a[href^=\"/people/\"]')");
+    expect(page.evaluate.mock.calls[3][0]).toContain('composerCandidates.length !== 1');
+    expect(page.evaluate.mock.calls[4][0]).toContain('const readAnswerAuthorSlug = (node) =>');
+    expect(page.evaluate.mock.calls[4][0]).not.toContain("answerContainer?.querySelector('a[href^=\"/people/\"]')");
+  });
+});

clis/zhihu/answer.ts

@@ -0,0 +1,212 @@
+import { CliError, CommandExecutionError } from '@jackwener/opencli/errors';
+import { cli, Strategy } from '@jackwener/opencli/registry';
+import type { IPage } from '@jackwener/opencli/types';
+import { assertAllowedKinds, parseTarget, type ZhihuTarget } from './target.js';
+import { buildResultRow, requireExecute, resolveCurrentUserIdentity, resolvePayload } from './write-shared.js';
+
+const ANSWER_AUTHOR_SCOPE_SELECTOR = '.AuthorInfo, .AnswerItem-authorInfo, .ContentItem-meta, [itemprop="author"]';
+
+cli({
+  site: 'zhihu',
+  name: 'answer',
+  description: 'Answer a Zhihu question',
+  domain: 'www.zhihu.com',
+  strategy: Strategy.UI,
+  browser: true,
+  args: [
+    { name: 'target', positional: true, required: true, help: 'Zhihu question URL or typed target' },
+    { name: 'text', positional: true, help: 'Answer text' },
+    { name: 'file', help: 'Answer text file path' },
+    { name: 'execute', type: 'boolean', help: 'Actually perform the write action' },
+  ],
+  columns: ['status', 'outcome', 'message', 'target_type', 'target', 'created_target', 'created_url', 'author_identity'],
+  func: async (page: IPage | null, kwargs: Record<string, unknown>) => {
+    if (!page) throw new CommandExecutionError('Browser session required for zhihu answer');
+
+    requireExecute(kwargs);
+    const rawTarget = String(kwargs.target);
+    const target = assertAllowedKinds('answer', parseTarget(rawTarget));
+    const questionTarget = target as Extract<ZhihuTarget, { kind: 'question' }>;
+    const payload = await resolvePayload(kwargs);
+
+    await page.goto(target.url);
+    const authorIdentity = await resolveCurrentUserIdentity(page);
+
+    const entryPath = await page.evaluate(`(() => {
+      const currentUserSlug = ${JSON.stringify(authorIdentity)};
+      const answerAuthorScopeSelector = ${JSON.stringify(ANSWER_AUTHOR_SCOPE_SELECTOR)};
+      const readAnswerAuthorSlug = (node) => {
+        const authorScopes = Array.from(node.querySelectorAll(answerAuthorScopeSelector));
+        const slugs = Array.from(new Set(authorScopes
+          .flatMap((scope) => Array.from(scope.querySelectorAll('a[href^="/people/"]')))
+          .map((link) => (link.getAttribute('href') || '').match(/^\\/people\\/([A-Za-z0-9_-]+)/)?.[1] || null)
+          .filter(Boolean)));
+        return slugs.length === 1 ? slugs[0] : null;
+      };
+      const restoredDraft = !!document.querySelector('[contenteditable="true"][data-draft-restored], textarea[data-draft-restored]');
+      const composerCandidates = Array.from(document.querySelectorAll('[contenteditable="true"], textarea')).map((editor) => {
+        const container = editor.closest('form, .AnswerForm, .DraftEditor-root, [data-za-module*="Answer"]') || editor.parentElement;
+        const text = 'value' in editor ? editor.value || '' : (editor.textContent || '');
+        const submitButton = Array.from((container || document).querySelectorAll('button')).find((node) => /发布|提交/.test(node.textContent || ''));
+        const nestedComment = Boolean(container?.closest('[data-comment-id], .CommentItem'));
+        return { editor, container, text, submitButton, nestedComment };
+      }).filter((candidate) => candidate.container && candidate.submitButton && !candidate.nestedComment);
+      const hasExistingAnswerByCurrentUser = Array.from(document.querySelectorAll('[data-zop-question-answer], article')).some((node) => {
+        return readAnswerAuthorSlug(node) === currentUserSlug;
+      });
+      return {
+        entryPathSafe: composerCandidates.length === 1
+          && !String(composerCandidates[0].text || '').trim()
+          && !restoredDraft
+          && !hasExistingAnswerByCurrentUser,
+        hasExistingAnswerByCurrentUser,
+      };
+    })()`) as { entryPathSafe?: boolean; hasExistingAnswerByCurrentUser?: boolean };
+
+    if (entryPath.hasExistingAnswerByCurrentUser) {
+      throw new CliError('ACTION_NOT_AVAILABLE', 'zhihu answer only supports creating a new answer when the current user has not already answered this question');
+    }
+    if (!entryPath.entryPathSafe) {
+      throw new CliError('ACTION_NOT_AVAILABLE', 'Answer editor entry path was not proven side-effect free');
+    }
+
+    const editorState = await page.evaluate(`(async () => {
+      const composerCandidates = Array.from(document.querySelectorAll('[contenteditable="true"], textarea')).map((editor) => {
+        const container = editor.closest('form, .AnswerForm, .DraftEditor-root, [data-za-module*="Answer"]') || editor.parentElement;
+        const text = 'value' in editor ? editor.value || '' : (editor.textContent || '');
+        const submitButton = Array.from((container || document).querySelectorAll('button')).find((node) => /发布|提交/.test(node.textContent || ''));
+        const nestedComment = Boolean(container?.closest('[data-comment-id], .CommentItem'));
+        return { editor, container, text, submitButton, nestedComment };
+      }).filter((candidate) => candidate.container && candidate.submitButton && !candidate.nestedComment);
+      if (composerCandidates.length !== 1) return { editorState: 'unsafe', anonymousMode: 'unknown' };
+      const { editor, text } = composerCandidates[0];
+      const anonymousLabeledControl =
+        (composerCandidates[0].container && composerCandidates[0].container.querySelector('[aria-label*="匿名"], [title*="匿名"]'))
+        || Array.from((composerCandidates[0].container || document).querySelectorAll('label, button, [role="switch"], [role="checkbox"]')).find((node) => /匿名/.test(node.textContent || ''))
+        || null;
+      const anonymousToggle =
+        anonymousLabeledControl?.matches?.('input[type="checkbox"], [role="switch"], [role="checkbox"], button')
+          ? anonymousLabeledControl
+          : anonymousLabeledControl?.querySelector?.('input[type="checkbox"], [role="switch"], [role="checkbox"], button')
+            || null;
+      let anonymousMode = 'unknown';
+      if (anonymousToggle) {
+        const ariaChecked = anonymousToggle.getAttribute && anonymousToggle.getAttribute('aria-checked');
+        const checked = 'checked' in anonymousToggle ? anonymousToggle.checked === true : false;
+        if (ariaChecked === 'true' || checked) anonymousMode = 'on';
+        else if (ariaChecked === 'false' || ('checked' in anonymousToggle && anonymousToggle.checked === false)) anonymousMode = 'off';
+      }
+      return {
+        editorState: editor && !text.trim() ? 'fresh_empty' : 'unsafe',
+        anonymousMode,
+      };
+    })()`) as { editorState?: string; anonymousMode?: 'on' | 'off' | 'unknown' };
+
+    if (editorState.editorState !== 'fresh_empty') {
+      throw new CliError('ACTION_NOT_AVAILABLE', 'Answer editor was not fresh and empty');
+    }
+    if (editorState.anonymousMode !== 'off') {
+      throw new CliError('ACTION_NOT_AVAILABLE', 'Anonymous answer mode could not be proven off for zhihu answer');
+    }
+
+    const editorCheck = await page.evaluate(`(async () => {
+      const textToInsert = ${JSON.stringify(payload)};
+      const composerCandidates = Array.from(document.querySelectorAll('[contenteditable="true"], textarea')).map((editor) => {
+        const container = editor.closest('form, .AnswerForm, .DraftEditor-root, [data-za-module*="Answer"]') || editor.parentElement;
+        const submitButton = Array.from((container || document).querySelectorAll('button')).find((node) => /发布|提交/.test(node.textContent || ''));
+        const nestedComment = Boolean(container?.closest('[data-comment-id], .CommentItem'));
+        return { editor, container, submitButton, nestedComment };
+      }).filter((candidate) => candidate.container && candidate.submitButton && !candidate.nestedComment);
+      if (composerCandidates.length !== 1) return { editorContent: '', bodyMatches: false };
+      const { editor } = composerCandidates[0];
+      editor.focus();
+      if ('value' in editor) {
+        editor.value = '';
+        editor.dispatchEvent(new Event('input', { bubbles: true }));
+        editor.value = textToInsert;
+        editor.dispatchEvent(new Event('input', { bubbles: true }));
+      } else {
+        editor.textContent = '';
+        document.execCommand('insertText', false, textToInsert);
+        editor.dispatchEvent(new InputEvent('input', { bubbles: true, data: textToInsert, inputType: 'insertText' }));
+      }
+      await new Promise((resolve) => setTimeout(resolve, 200));
+      const content = 'value' in editor ? editor.value : (editor.textContent || '');
+      return { editorContent: content, bodyMatches: content === textToInsert };
+    })()`) as { editorContent?: string; bodyMatches?: boolean };
+
+    if (editorCheck.editorContent !== payload || !editorCheck.bodyMatches) {
+      throw new CliError('OUTCOME_UNKNOWN', 'Answer editor content did not exactly match the requested payload before publish');
+    }
+
+    const proof = await page.evaluate(`(async () => {
+      const normalize = (value) => value.replace(/\\s+/g, ' ').trim();
+      const answerAuthorScopeSelector = ${JSON.stringify(ANSWER_AUTHOR_SCOPE_SELECTOR)};
+      const readAnswerAuthorSlug = (node) => {
+        const authorScopes = Array.from(node.querySelectorAll(answerAuthorScopeSelector));
+        const slugs = Array.from(new Set(authorScopes
+          .flatMap((scope) => Array.from(scope.querySelectorAll('a[href^="/people/"]')))
+          .map((link) => (link.getAttribute('href') || '').match(/^\\/people\\/([A-Za-z0-9_-]+)/)?.[1] || null)
+          .filter(Boolean)));
+        return slugs.length === 1 ? slugs[0] : null;
+      };
+      const composerCandidates = Array.from(document.querySelectorAll('[contenteditable="true"], textarea')).map((editor) => {
+        const container = editor.closest('form, [role="dialog"], .AnswerForm, .DraftEditor-root, [data-za-module*="Answer"]') || editor.parentElement;
+        const submitButton = Array.from((container || document).querySelectorAll('button')).find((node) => /发布|提交/.test(node.textContent || ''));
+        const nestedComment = Boolean(container?.closest('[data-comment-id], .CommentItem'));
+        return { editor, container, submitButton, nestedComment };
+      }).filter((candidate) => candidate.container && candidate.submitButton && !candidate.nestedComment);
+      if (composerCandidates.length !== 1) return { createdTarget: null, createdUrl: null, authorIdentity: null, bodyMatches: false };
+      const submitScope = composerCandidates[0].container || document;
+      const submit = Array.from(submitScope.querySelectorAll('button')).find((node) => /发布|提交/.test(node.textContent || ''));
+      submit && submit.click();
+      await new Promise((resolve) => setTimeout(resolve, 1500));
+      const href = location.href;
+      const match = href.match(/question\\/(\\d+)\\/answer\\/(\\d+)/);
+      const targetHref = match ? '/question/' + match[1] + '/answer/' + match[2] : null;
+      const answerContainer = targetHref
+        ? Array.from(document.querySelectorAll('[data-zop-question-answer], article')).find((node) => {
+            const dataAnswerId = node.getAttribute('data-answerid') || node.getAttribute('data-zop-question-answer') || '';
+            if (dataAnswerId && dataAnswerId.includes(match[2])) return true;
+            return Array.from(node.querySelectorAll('a[href*="/answer/"]')).some((link) => {
+              const hrefValue = link.getAttribute('href') || '';
+              return hrefValue.includes(targetHref);
+            });
+          })
+        : null;
+      const authorSlug = answerContainer ? readAnswerAuthorSlug(answerContainer) : null;
+      const bodyNode =
+        answerContainer?.querySelector('[itemprop="text"]')
+        || answerContainer?.querySelector('.RichContent-inner')
+        || answerContainer?.querySelector('.RichText')
+        || answerContainer;
+      const bodyText = normalize(bodyNode?.textContent || '');
+      return match
+        ? {
+            createdTarget: 'answer:' + match[1] + ':' + match[2],
+            createdUrl: href,
+            authorIdentity: authorSlug,
+            bodyMatches: bodyText === normalize(${JSON.stringify(payload)}),
+          }
+        : { createdTarget: null, createdUrl: null, authorIdentity: authorSlug, bodyMatches: false };
+    })()`) as {
+      createdTarget?: string | null;
+      createdUrl?: string | null;
+      authorIdentity?: string | null;
+      bodyMatches?: boolean;
+    };
+
+    if (proof.authorIdentity !== authorIdentity) {
+      throw new CliError('OUTCOME_UNKNOWN', 'Answer was created but authorship could not be proven for the frozen current user');
+    }
+    if (!proof.createdTarget || !proof.bodyMatches || proof.createdTarget.split(':')[1] !== questionTarget.id) {
+      throw new CliError('OUTCOME_UNKNOWN', 'Created answer proof did not match the requested question or payload');
+    }
+
+    return buildResultRow(`Answered question ${questionTarget.id}`, target.kind, rawTarget, 'created', {
+      created_target: proof.createdTarget,
+      created_url: proof.createdUrl,
+      author_identity: authorIdentity,
+    });
+  },
+});