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)