Legado Book Source Developer

Legado (阅读) Android app book source development skill. For creating book sources for novel/manga websites, debugging existing book source rules, querying Legado knowledge (CSS selectors, rule formats, POST requests), and analyzing website HTML structure. Covers searchUrl, ruleSearch, ruleToc, ruleContent, ruleBookInfo configuration. Use only with user-owned or authorized websites.

A toolkit for creating, debugging, and managing Legado book sources. Includes analysis tools, real book source examples, and a knowledge base built from Legado source code.

Quick Start

text

1. Detect encoding → 2. Fetch real HTML → 3. Query knowledge base → 4. Analyze structure → 5. Create book source

Rules should be derived from actual HTML analysis rather than assumptions.

Usage Scope

This skill is intended for developing book sources for websites the user owns or has authorization to access. The included tools (URL analysis, HTML fetching, source uploading) should only be used on target sites with the user's explicit consent. Do not use these tools for unauthorized scraping, bypassing access controls, or accessing content without permission.

Tools

Knowledge Query

Tool	Purpose
search_knowledge(query)	Search knowledge base
get_css_selector_rules()	CSS selector reference (paginated)
get_real_book_source_examples(limit)	Real book source analysis results
get_book_source_templates(limit)	Proven book source templates
read_file_paginated(path, page)	Read large files with pagination
list_all_knowledge_files()	List all knowledge files

HTML Analysis

Tool	Purpose
smart_fetch_html(url, method, body, headers, charset)	Fetch HTML with encoding support
smart_web_analyzer(html)	Full page structure analysis
smart_bookinfo_analyzer(html)	Book info page analysis
smart_toc_analyzer(html)	Table of contents analysis
smart_content_analyzer(html)	Content page analysis

Book Source Management

Tool	Purpose
edit_book_source(complete_source="JSON")	Create/edit book source
validate_book_source.py	Validate book source JSON (in tools/)

Analysis Scripts (in tools/)

Script	Deps	Purpose
analyze_url.py	requests, bs4	Website analysis (encoding + structure + search API)
analyze_url.sh	curl	Website analysis (no Python required)
quick_analyze.py	requests, bs4	Quick analysis with auto HTML storage
js_param_analyzer.py	requests, bs4	JS parameter/endpoint analysis
validate_book_source.py	—	Book source JSON validation (no deps)
upload_book_source.py	requests	Upload book source to public image host (default: tu.406np.xyz) for shareable direct links

No Python? See references/no_python_workflow.md for using host MCP tools (browser, HTTP, code execution).

3-Phase Workflow

Phase 1: Information Collection

Step 1: Query Knowledge Base

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search_knowledge("CSS选择器格式 提取类型 @text @html @href @src")
get_real_book_source_examples(limit=5)
get_book_source_templates(limit=3)

Step 2: Detect Encoding (once, at start)

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detect_charset(url="http://example.com")

• UTF-8 → omit charset (default)
• GBK/GB2312 → add "charset":"gbk" to all requests

Step 3: Fetch Real HTML

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smart_fetch_html(url="http://example.com/search", charset="gbk")
smart_fetch_html(url="http://example.com/search", method="POST",
                 body="keyword={{key}}&t=1", charset="gbk")

Step 4: Analyze Structure

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smart_web_analyzer(html="...")
smart_bookinfo_analyzer(html="...")
smart_toc_analyzer(html="...")
smart_content_analyzer(html="...")

Phase 2: Review

1. Write rules based on knowledge base + real HTML analysis
2. Validate CSS selectors, extraction types, regex format
3. Handle special cases (no cover, lazy loading, merged info)

When uncertain, ask the user rather than guessing.

Phase 3: Create Book Source

1. Prepare complete JSON with all required fields
2. Call edit_book_source(complete_source="完整JSON")
3. Output as standard JSON array (no comments, no code blocks)

Rule String Format

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CSS选择器@提取类型##正则表达式##替换内容

Extraction Types:

• @text — text content (includes children)
• @ownText — element text only (excludes children)
• @html — HTML structure
• @textNode — text nodes
• @href — link URL
• @src — image source
• @js — JavaScript processing

Numeric Indices:

• .0 = first, .-1 = last (NOT :first-child / :last-child)

Text Selection:

• text.关键词 (NOT :contains())

Common Patterns

Standard list with cover:

json

{"bookList": ".book-list .item", "name": ".title@text", "bookUrl": "a@href", "coverUrl": "img@src"}

No cover on search page:

json

{"coverUrl": ""}

Lazy loading images:

json

{"coverUrl": "img@data-original||img@src"}

nextContentUrl rule: Chapter number changes → SET it. Page number only → LEAVE EMPTY.

Known Constraints

Unsupported fields (not in Legado source):

• prevContentUrl does not exist
• :contains() pseudo-class is not supported (use text.关键词)
• :first-child / :last-child are not supported (use .0 / .-1)

Recommended practices:

• Base rules on real HTML analysis rather than assumptions
• Query the knowledge base before writing rules
• Detect encoding once at the start

Required fields: See references/legado_data_structures.md for complete field specs from BookSource.kt, SearchRule.kt, TocRule.kt, ContentRule.kt, BookInfoRule.kt.

References

File	Content
references/legado_development_guide.md	Workflow, HTML patterns, encoding, regex, troubleshooting
references/legado_data_structures.md	Source code analysis: data structures, rule engine, DB schema
references/Legado书源开发完整指南.md	Comprehensive development guide
references/用户交互指南.md	Common scenario interaction flows
references/方法-JS扩展类.md	JavaScript API documentation
references/Legado书源编码处理指南.md	Encoding handling guide
references/knowledge_base/book_sources/	Real book source analysis (MD)
references/book_source_database/book_sources/	Book source database (JSON)

Most Used Patterns (from real sources)

CSS Selectors: img(40x), h1(30x), div(13x), content(12x), intro(11x), h3(9x)

Extraction Types: @href(81x), @text(72x), src(60x), @html(33x), @js(25x)