diff options
author | Alex Crichton <alex@alexcrichton.com> | 2018-11-01 20:08:59 -0700 |
---|---|---|
committer | Alex Crichton <alex@alexcrichton.com> | 2018-11-01 20:08:59 -0700 |
commit | 79a49bb29ab606f908c19ebeeb8611fbf69e611f (patch) | |
tree | 90250243545521856ec412bba306b36d36285a07 |
Initial commit
-rw-r--r-- | .gitignore | 2 | ||||
-rw-r--r-- | Cargo.lock | 435 | ||||
-rw-r--r-- | Cargo.toml | 15 | ||||
-rw-r--r-- | mailmap.toml | 5 | ||||
-rw-r--r-- | src/main.rs | 269 |
5 files changed, 726 insertions, 0 deletions
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0000000..f8a37c2 --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,15 @@ +[package] +name = "mailgun-mailmap" +version = "0.1.0" +authors = ["Alex Crichton <alex@alexcrichton.com>"] +edition = '2018' + +[dependencies] +curl = "0.4" +toml = "0.4" +failure = "0.1" +serde = "1" +serde_derive = "1" +serde_json = "1" +log = "0.4" +env_logger = { version = "0.5", default-features = false } diff --git a/mailmap.toml b/mailmap.toml new file mode 100644 index 0000000..dcf7686 --- /dev/null +++ b/mailmap.toml @@ -0,0 +1,5 @@ +[[lists]] +address = 'another@rustlang.com' +access_level = 'everyone' +members = [ +] diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..49846da --- /dev/null +++ b/src/main.rs @@ -0,0 +1,269 @@ +use std::cell::RefCell; +use std::collections::{HashMap, HashSet}; +use std::env; +use std::fs; +use std::str; + +use curl::easy::{Easy, Form}; +use failure::{bail, format_err, Error, ResultExt}; + +#[derive(serde_derive::Deserialize)] +struct Mailmap { + lists: Vec<List>, +} + +#[derive(serde_derive::Deserialize)] +struct List { + address: String, + access_level: String, + members: Vec<String>, +} + +mod api { + #[derive(serde_derive::Deserialize)] + pub struct ListResponse { + pub items: Vec<List>, + pub paging: Paging, + } + + #[derive(serde_derive::Deserialize)] + pub struct List { + pub access_level: String, + pub address: String, + pub members_count: u64, + } + + #[derive(serde_derive::Deserialize)] + pub struct Paging { + pub first: String, + pub last: String, + pub next: String, + pub previous: String, + } + + #[derive(serde_derive::Deserialize)] + pub struct MembersResponse { + pub items: Vec<Member>, + pub paging: Paging, + } + + #[derive(serde_derive::Deserialize)] + pub struct Member { + pub address: String, + } +} + +#[derive(serde_derive::Deserialize)] +struct Empty {} + +fn main() { + env_logger::init(); + if let Err(e) = run() { + eprintln!("error: {}", e); + for e in e.iter_causes() { + eprintln!(" cause: {}", e); + } + std::process::exit(1); + } +} + +fn run() -> Result<(), Error> { + let mailmap = fs::read_to_string("mailmap.toml") + .with_context(|_| "failed to read `mailmap.toml`")?; + + let mailmap: Mailmap = toml::from_str(&mailmap) + .with_context(|_| "failed to deserialize toml mailmap")?; + + let mut lists = Vec::new(); + let mut response = get::<api::ListResponse>("/lists/pages")?; + while response.items.len() > 0 { + lists.extend(response.items); + response = get::<api::ListResponse>(&response.paging.next)?; + } + + let mut addr2list = HashMap::new(); + for list in mailmap.lists.iter() { + if addr2list.insert(&list.address, list).is_some() { + bail!("duplicate address: {}", list.address); + } + } + + for prev_list in lists { + let address = &prev_list.address; + match addr2list.remove(address) { + Some(new_list) => { + sync(&prev_list, &new_list) + .with_context(|_| format!("failed to sync {}", address))? + } + None => { + del(&prev_list) + .with_context(|_| format!("failed to delete {}", address))? + } + } + } + + for (_, list) in addr2list.iter() { + create(list) + .with_context(|_| format!("failed to create {}", list.address))?; + } + + Ok(()) +} + +fn create(new: &List) -> Result<(), Error> { + let mut form = Form::new(); + form.part("address").contents(new.address.as_bytes()).add()?; + form.part("access_level").contents(new.access_level.as_bytes()).add()?; + post::<Empty>("/lists", form)?; + + add_members(&new.address, &new.members)?; + Ok(()) +} + +fn sync(prev: &api::List, new: &List) -> Result<(), Error> { + assert_eq!(prev.address, new.address); + let url = format!("/lists/{}", prev.address); + if prev.access_level != new.access_level { + let mut form = Form::new(); + form.part("access_level").contents(new.access_level.as_bytes()).add()?; + put::<Empty>(&url, form)?; + } + + let url = format!("{}/members/pages", url); + let mut prev_members = HashSet::new(); + let mut response = get::<api::MembersResponse>(&url)?; + while response.items.len() > 0 { + prev_members.extend(response.items.into_iter().map(|member| member.address)); + response = get::<api::MembersResponse>(&response.paging.next)?; + } + + let mut to_add = Vec::new(); + for member in new.members.iter() { + if !prev_members.remove(member) { + to_add.push(member.clone()); + } + } + + if to_add.len() > 0 { + add_members(&new.address, &to_add)?; + } + for member in prev_members { + delete::<Empty>(&format!("/lists/{}/members/{}", new.address, member))?; + } + + Ok(()) +} + +fn add_members(address: &str, members: &[String]) -> Result<(), Error> { + let url = format!("/lists/{}/members.json", address); + let data = serde_json::to_string(members)?; + let mut form = Form::new(); + form.part("members").contents(data.as_bytes()).add()?; + post::<Empty>(&url, form)?; + Ok(()) +} + +fn del(prev: &api::List) -> Result<(), Error> { + delete::<Empty>(&format!("/lists/{}", prev.address))?; + Ok(()) +} + +fn get<T: for<'de> serde::Deserialize<'de>>(url: &str) -> Result<T, Error> { + execute(url, Method::Get) +} + +fn post<T: for<'de> serde::Deserialize<'de>>( + url: &str, + form: Form, +) -> Result<T, Error> { + execute(url, Method::Post(form)) +} + +fn put<T: for<'de> serde::Deserialize<'de>>( + url: &str, + form: Form, +) -> Result<T, Error> { + execute(url, Method::Put(form)) +} + +fn delete<T: for<'de> serde::Deserialize<'de>>(url: &str) -> Result<T, Error> { + execute(url, Method::Delete) +} + +enum Method { + Get, + Delete, + Post(Form), + Put(Form), +} + +fn execute<T: for<'de> serde::Deserialize<'de>>( + url: &str, + method: Method, +) -> Result<T, Error> { + thread_local!(static HANDLE: RefCell<Easy> = RefCell::new(Easy::new())); + let password = env::var("MAILGUN_API_TOKEN") + .map_err(|_| format_err!("must set $MAILGUN_API_TOKEN"))?; + let result = HANDLE.with(|handle| { + let mut handle = handle.borrow_mut(); + handle.reset(); + let url = if url.starts_with("https://") { + url.to_string() + } else { + format!("https://api.mailgun.net/v3{}", url) + }; + handle.url(&url)?; + match method { + Method::Get => { + log::debug!("GET {}", url); + handle.get(true)?; + } + Method::Delete => { + log::debug!("DELETE {}", url); + handle.custom_request("DELETE")?; + } + Method::Post(form) => { + log::debug!("POST {}", url); + handle.httppost(form)?; + } + Method::Put(form) => { + log::debug!("PUT {}", url); + handle.httppost(form)?; + handle.custom_request("PUT")?; + } + } + handle.username("api")?; + handle.password(&password)?; + handle.useragent("rust-lang/rust membership update")?; + // handle.verbose(true)?; + let mut result = Vec::new(); + let mut headers = Vec::new(); + { + let mut transfer = handle.transfer(); + transfer.write_function(|data| { + result.extend_from_slice(data); + Ok(data.len()) + })?; + transfer.header_function(|header| { + if let Ok(s) = str::from_utf8(header) { + headers.push(s.to_string()); + } + true + })?; + transfer.perform()?; + } + + let result = String::from_utf8(result) + .map_err(|_| format_err!("response was invalid utf-8"))?; + + log::trace!("headers: {:#?}", headers); + log::trace!("json: {}", result); + let code = handle.response_code()?; + if code != 200 { + bail!("failed to get a 200 code, got {}\n\n{}", code, result) + } + Ok(serde_json::from_str(&result) + .with_context(|_| "failed to parse json response")?) + }); + Ok(result.with_context(|_| format!("failed to send request to {}", url))?) +} |