Treehole

PKU Treehole (北大树洞) anonymous forum CLI tool built in Rust. Use this skill when working on the treehole crate, debugging treehole commands, adding features to the treehole CLI, understanding the treehole API, or when the user mentions 树洞, treehole, anonymous posts, tree leaves (树叶), or PKU forum. Also use when dealing with IAAA login flow for treehole, JWT callback, SMS verification, or treehole REST API endpoints. **Also use whenever the user asks about their course schedule / 课表 / 这学期上什么课 / weekly schedule / academic calendar / 本周日程 — the treehole API exposes these via treehole course, treehole schedule, treehole academic-cal, treehole activity-cal, and they are the canonical source. Do NOT use the course (Blackboard) or elective crate to answer schedule questions — course is for teaching-platform content (assignments/files) and elective only sees the major program (misses 辅修/双学位).

Treehole - 北大树洞 CLI

A CLI client for PKU's anonymous discussion platform (PKU Helper Treehole).

Architecture

• Crate location: crates/treehole/
• Auth flow: IAAA SSO (app_id="PKU Helper") → JWT callback at /chapi/cas_iaaa_login → optional SMS verify
• API: JSON REST at /chapi/api/v3/* (modern) and /chapi/api/* (legacy)
• API docs: docs/treehole-api.md

Key Source Files

• src/main.rs — Clap CLI definition with all subcommands
• src/commands.rs — Command implementations (login, post, search, etc.)
• src/api.rs — HTTP API client, request builders, response types
• src/display.rs — Terminal output formatting with colored crate
• src/client.rs — reqwest client builders (build for auth, build_simple for IAAA)

CLI Commands

Command	Alias	Function
login		IAAA password/QR login → JWT
logout / status		Session management
list	ls	Browse posts/feed
show		View single post with replies
search		Full-text search
post		Create post (text, tags, images, rewards/树叶)
reply		Reply to a post
like / tread		Vote on posts
star / unstar / stars		Bookmark management
follow / unfollow		Follow posts
msg / read		Notifications
me		Profile + own posts
score		Grade query (with color rendering)
course		Weekly course schedule (canonical source — includes 主修 + 辅修 + 双学位)
schedule		This week's day-by-day schedule
academic-cal / activity-cal		Academic / activity calendar
otp		TOTP 2FA management (bind/set/show/clear)

Auto-Login for AI Agents

bash

# Check session status
info-auth check

# Auto-login (reads credentials from OS keyring, no password needed)
treehole login -p

# If SMS verification is needed (first login or periodic):
PKU_SMS_CODE=123456 treehole login -p

Treehole may require SMS verification on first login or periodically (~30 days). When PKU_SMS_CODE env var is set, it auto-confirms sending and submits the code without interactive prompts.

Development Conventions

• All user-facing strings are in Chinese (prompts, errors, output)
• Error handling: anyhow::Result with .context("中文描述")
• HTTP client uses redirect(Policy::none()) for manual redirect handling
• Session persisted to ~/.config/info/treehole/ via info_common::session::Store
• Credentials resolved via info_common::credential (keyring → env → interactive)
• Shared auth from info-common crate (see info-common skill for details)