woops gotta clone outside the loop
This commit is contained in:
parent
3f726f3129
commit
7f7a4a115a
2 changed files with 1 additions and 531 deletions
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//! Module that implements parsers for all of the IMAP types.
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mod literal;
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mod old;
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use std::fmt::Debug;
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use std::mem;
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use std::str::FromStr;
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use pest::{error::Error, iterators::Pair, ParseResult as PestResult, Parser, ParserState};
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use crate::response::*;
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#[derive(Parser)]
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#[grammar = "parser/rfc3501.pest"]
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struct Rfc3501;
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pub type ParseResult<T, E = Error<Rule>> = Result<T, E>;
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pub fn parse_capability(s: impl AsRef<str>) -> ParseResult<Capability> {
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let mut pairs = Rfc3501::parse(Rule::capability, s.as_ref())?;
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let pair = pairs.next().unwrap();
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Ok(build_capability(pair))
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}
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pub fn parse_response(s: impl AsRef<str>) -> ParseResult<Response> {
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let mut pairs = Rfc3501::parse(Rule::response, s.as_ref())?;
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let pair = pairs.next().unwrap();
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Ok(build_response(pair))
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}
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fn build_response(pair: Pair<Rule>) -> Response {
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assert!(matches!(pair.as_rule(), Rule::response));
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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match pair.as_rule() {
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Rule::response_done => {
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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match pair.as_rule() {
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Rule::response_tagged => {
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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let tag = pair.as_str().to_owned();
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let pair = pairs.next().unwrap();
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let (status, code, information) = build_resp_cond_state(pair);
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Response::Done {
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tag,
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status,
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code,
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information,
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}
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}
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_ => unreachable!("{:#?}", pair),
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}
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}
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Rule::response_data => {
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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match pair.as_rule() {
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Rule::resp_cond_state => {
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let (status, code, information) = build_resp_cond_state(pair);
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Response::Data {
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status,
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code,
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information,
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}
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}
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Rule::mailbox_data => Response::MailboxData(build_mailbox_data(pair)),
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Rule::capability_data => Response::Capabilities(build_capabilities(pair)),
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Rule::message_data => {
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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let seq: u32 = build_number(pair);
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let pair = pairs.next().unwrap();
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match pair.as_rule() {
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Rule::message_data_expunge => Response::Expunge(seq),
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Rule::message_data_fetch => {
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let mut pairs = pair.into_inner();
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let msg_att = pairs.next().unwrap();
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let attrs = msg_att.into_inner().map(build_msg_att).collect();
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Response::Fetch(seq, attrs)
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}
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_ => unreachable!("{:#?}", pair),
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}
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}
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_ => unreachable!("{:#?}", pair),
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}
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}
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Rule::continue_req => {
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let (code, s) = build_resp_text(unwrap1(pair));
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Response::Continue {
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code,
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information: Some(s),
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}
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}
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_ => unreachable!("{:#?}", pair),
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}
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}
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fn build_resp_text(pair: Pair<Rule>) -> (Option<ResponseCode>, String) {
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assert!(matches!(pair.as_rule(), Rule::resp_text));
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let mut pairs = pair.into_inner();
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let mut pair = pairs.next().unwrap();
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let mut resp_code = None;
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if let Rule::resp_text_code = pair.as_rule() {
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resp_code = build_resp_text_code(pair);
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pair = pairs.next().unwrap();
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}
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assert!(matches!(pair.as_rule(), Rule::text));
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let s = pair.as_str().to_owned();
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(resp_code, s)
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}
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fn build_msg_att(pair: Pair<Rule>) -> AttributeValue {
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if !matches!(pair.as_rule(), Rule::msg_att_dyn_or_stat) {
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unreachable!("{:#?}", pair);
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}
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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match pair.as_rule() {
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Rule::msg_att_dynamic => AttributeValue::Flags(pair.into_inner().map(build_flag).collect()),
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Rule::msg_att_static => build_msg_att_static(pair),
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_ => unreachable!("{:#?}", pair),
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}
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}
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fn build_msg_att_static(pair: Pair<Rule>) -> AttributeValue {
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if !matches!(pair.as_rule(), Rule::msg_att_static) {
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unreachable!("{:#?}", pair);
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}
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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match pair.as_rule() {
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Rule::msg_att_static_internaldate => {
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AttributeValue::InternalDate(build_string(unwrap1(pair)))
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}
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Rule::msg_att_static_rfc822_size => AttributeValue::Rfc822Size(build_number(unwrap1(pair))),
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Rule::msg_att_static_envelope => AttributeValue::Envelope(build_envelope(unwrap1(pair))),
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// TODO: do this
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Rule::msg_att_static_body => AttributeValue::BodySection {
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section: None,
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index: None,
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data: None,
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},
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_ => unreachable!("{:#?}", pair),
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}
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}
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fn build_envelope(_pair: Pair<Rule>) -> Envelope {
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// TODO: do this
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Envelope::default()
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}
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fn build_resp_cond_state(pair: Pair<Rule>) -> (Status, Option<ResponseCode>, Option<String>) {
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if !matches!(pair.as_rule(), Rule::resp_cond_state) {
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unreachable!("{:#?}", pair);
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}
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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let status = build_status(pair);
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let mut code = None;
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let mut information = None;
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let pair = pairs.next().unwrap();
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let pairs = pair.into_inner();
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for pair in pairs {
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match pair.as_rule() {
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Rule::resp_text_code => code = build_resp_text_code(pair),
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Rule::text => information = Some(pair.as_str().to_owned()),
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_ => unreachable!("{:#?}", pair),
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}
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}
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(status, code, information)
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}
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fn build_resp_text_code(pair: Pair<Rule>) -> Option<ResponseCode> {
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if !matches!(pair.as_rule(), Rule::resp_text_code) {
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unreachable!("{:#?}", pair);
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}
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let mut pairs = pair.into_inner();
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let pair = pairs.next()?;
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Some(match pair.as_rule() {
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Rule::capability_data => ResponseCode::Capabilities(build_capabilities(pair)),
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Rule::resp_text_code_readwrite => ResponseCode::ReadWrite,
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Rule::resp_text_code_uidvalidity => ResponseCode::UidValidity(build_number(unwrap1(pair))),
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Rule::resp_text_code_uidnext => ResponseCode::UidNext(build_number(unwrap1(pair))),
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Rule::resp_text_code_unseen => ResponseCode::Unseen(build_number(unwrap1(pair))),
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// TODO: maybe have an actual type for these flags instead of just string
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Rule::resp_text_code_permanentflags => {
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ResponseCode::PermanentFlags(pair.into_inner().map(|p| p.as_str().to_owned()).collect())
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}
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Rule::resp_text_code_other => {
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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let a = pair.as_str().to_owned();
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let mut b = None;
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if let Some(pair) = pairs.next() {
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b = Some(pair.as_str().to_owned());
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}
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ResponseCode::Other(a, b)
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}
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_ => unreachable!("{:#?}", pair),
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})
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}
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fn build_capability(pair: Pair<Rule>) -> Capability {
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if !matches!(pair.as_rule(), Rule::capability) {
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unreachable!("{:#?}", pair);
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}
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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match pair.as_rule() {
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Rule::auth_type => Capability::Auth(pair.as_str().to_uppercase().to_owned()),
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Rule::atom => match pair.as_str() {
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"IMAP4rev1" => Capability::Imap4rev1,
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s => Capability::Atom(s.to_uppercase().to_owned()),
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},
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_ => unreachable!("{:?}", pair),
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}
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}
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fn build_capabilities(pair: Pair<Rule>) -> Vec<Capability> {
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if !matches!(pair.as_rule(), Rule::capability_data) {
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unreachable!("{:#?}", pair);
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}
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pair.into_inner().map(build_capability).collect()
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}
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fn build_status(pair: Pair<Rule>) -> Status {
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match pair.as_rule() {
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Rule::resp_status => match pair.as_str().to_uppercase().as_str() {
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"OK" => Status::Ok,
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"NO" => Status::No,
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"BAD" => Status::Bad,
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s => unreachable!("invalid status {:?}", s),
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},
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_ => unreachable!("{:?}", pair),
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}
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}
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fn build_flag_list(pair: Pair<Rule>) -> Vec<MailboxFlag> {
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if !matches!(pair.as_rule(), Rule::flag_list) {
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unreachable!("{:#?}", pair);
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}
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pair.into_inner().map(build_flag).collect()
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}
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fn build_flag(mut pair: Pair<Rule>) -> MailboxFlag {
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if matches!(pair.as_rule(), Rule::flag_fetch) {
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let mut pairs = pair.into_inner();
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pair = pairs.next().unwrap();
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if matches!(pair.as_rule(), Rule::flag_fetch_recent) {
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return MailboxFlag::Recent;
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}
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}
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if !matches!(pair.as_rule(), Rule::flag) {
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unreachable!("{:#?}", pair);
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}
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match pair.as_str() {
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"\\Answered" => MailboxFlag::Answered,
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"\\Flagged" => MailboxFlag::Flagged,
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"\\Deleted" => MailboxFlag::Deleted,
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"\\Seen" => MailboxFlag::Seen,
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"\\Draft" => MailboxFlag::Draft,
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// s if s.starts_with("\\") => MailboxFlag::Ext(s.to_owned()),
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// TODO: what??
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s => MailboxFlag::Ext(s.to_owned()),
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}
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}
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fn build_mailbox_data(pair: Pair<Rule>) -> MailboxData {
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if !matches!(pair.as_rule(), Rule::mailbox_data) {
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unreachable!("{:#?}", pair);
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}
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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match pair.as_rule() {
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Rule::mailbox_data_exists => MailboxData::Exists(build_number(unwrap1(pair))),
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Rule::mailbox_data_flags => {
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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let flags = build_flag_list(pair);
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MailboxData::Flags(flags)
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}
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Rule::mailbox_data_recent => MailboxData::Recent(build_number(unwrap1(pair))),
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Rule::mailbox_data_list => {
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let mut pairs = pair.into_inner();
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let pair = pairs.next().unwrap();
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let (flags, delimiter, name) = build_mailbox_list(pair);
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MailboxData::List {
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flags,
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delimiter,
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name,
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}
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}
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_ => unreachable!("{:#?}", pair),
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}
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}
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fn build_mailbox_list(pair: Pair<Rule>) -> (Vec<String>, Option<String>, String) {
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if !matches!(pair.as_rule(), Rule::mailbox_list) {
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unreachable!("{:#?}", pair);
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}
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let mut pairs = pair.into_inner();
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let mut pair = pairs.next().unwrap();
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// let mut flags = Vec::new();
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let flags = if let Rule::mailbox_list_flags = pair.as_rule() {
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let pairs_ = pair.into_inner();
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let mut flags = Vec::new();
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for pair in pairs_ {
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flags.extend(build_mbx_list_flags(pair));
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}
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pair = pairs.next().unwrap();
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flags
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} else {
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Vec::new()
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};
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assert!(matches!(pair.as_rule(), Rule::mailbox_list_string));
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let s = build_nstring(pair);
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pair = pairs.next().unwrap();
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assert!(matches!(pair.as_rule(), Rule::mailbox));
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let mailbox = build_string(pair);
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(flags, s, mailbox)
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}
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fn build_mbx_list_flags(pair: Pair<Rule>) -> Vec<String> {
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assert!(matches!(pair.as_rule(), Rule::mbx_list_flags));
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pair.into_inner()
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.map(|pair| pair.as_str().to_owned())
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.collect()
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}
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/// Unwraps a singleton pair (a pair that only has one element in its `inner` list)
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fn unwrap1(pair: Pair<Rule>) -> Pair<Rule> {
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let mut pairs = pair.into_inner();
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pairs.next().unwrap()
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}
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/// Extracts a numerical type, generic over anything that could possibly be read as a number
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// TODO: should probably restrict this to a few cases
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fn build_number<T>(pair: Pair<Rule>) -> T
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where
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T: FromStr,
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T::Err: Debug,
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{
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if !matches!(pair.as_rule(), Rule::nz_number | Rule::number) {
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unreachable!("not a number {:#?}", pair);
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}
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pair.as_str().parse::<T>().unwrap()
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}
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/// Wrapper around [build_string][1], except return None for the `nil` case
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///
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/// [1]: self::build_string
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fn build_nstring(pair: Pair<Rule>) -> Option<String> {
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if matches!(pair.as_rule(), Rule::nil) {
|
|
||||||
return None;
|
|
||||||
}
|
|
||||||
Some(build_string(pair))
|
|
||||||
}
|
|
||||||
|
|
||||||
/// Extracts a string-type, discarding the surrounding quotes and unescaping the escaped characters
|
|
||||||
fn build_string(pair: Pair<Rule>) -> String {
|
|
||||||
// TODO: actually get rid of the quotes and escaped chars
|
|
||||||
pair.as_str().to_owned()
|
|
||||||
}
|
|
||||||
|
|
||||||
fn parse_literal(s: impl AsRef<str>) -> ParseResult<String> {
|
|
||||||
let mut pairs = Rfc3501::parse(Rule::literal, s.as_ref())?;
|
|
||||||
let pair = pairs.next().unwrap();
|
|
||||||
Ok(build_literal(pair))
|
|
||||||
}
|
|
||||||
|
|
||||||
fn build_literal(pair: Pair<Rule>) -> String {
|
|
||||||
assert!(matches!(pair.as_rule(), Rule::literal));
|
|
||||||
|
|
||||||
let mut pairs = pair.into_inner();
|
|
||||||
let _ = pairs.next().unwrap();
|
|
||||||
let literal_str = pairs.next().unwrap();
|
|
||||||
literal_str.as_str().to_owned()
|
|
||||||
}
|
|
||||||
|
|
||||||
#[cfg(test)]
|
|
||||||
mod tests {
|
|
||||||
use super::*;
|
|
||||||
use crate::response::*;
|
|
||||||
use pest::Parser;
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn test_literal() {
|
|
||||||
assert_eq!(parse_literal("{7}\r\nhellosu"), Ok("hellosu".to_owned()));
|
|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
#[rustfmt::skip]
|
|
||||||
fn test_capability() {
|
|
||||||
assert_eq!(parse_capability("IMAP4rev1"), Ok(Capability::Imap4rev1));
|
|
||||||
assert_eq!(parse_capability("LOGINDISABLED"), Ok(Capability::Atom("LOGINDISABLED".to_owned())));
|
|
||||||
assert_eq!(parse_capability("AUTH=PLAIN"), Ok(Capability::Auth("PLAIN".to_owned())));
|
|
||||||
assert_eq!(parse_capability("auth=plain"), Ok(Capability::Auth("PLAIN".to_owned())));
|
|
||||||
|
|
||||||
assert!(parse_capability("(OSU)").is_err());
|
|
||||||
assert!(parse_capability("\x01HELLO").is_err());
|
|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
#[rustfmt::skip]
|
|
||||||
fn test_nil() {
|
|
||||||
assert!(Rfc3501::parse(Rule::nil, "NIL").is_ok());
|
|
||||||
assert!(Rfc3501::parse(Rule::nil, "anything else").is_err());
|
|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn test_section_8() {
|
|
||||||
// this little exchange is from section 8 of rfc3501
|
|
||||||
// https://tools.ietf.org/html/rfc3501#section-8
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response("* OK IMAP4rev1 Service Ready\r\n"),
|
|
||||||
Ok(Response::Data {
|
|
||||||
status: Status::Ok,
|
|
||||||
code: None,
|
|
||||||
information: Some("IMAP4rev1 Service Ready".to_owned()),
|
|
||||||
})
|
|
||||||
);
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response("a001 OK LOGIN completed\r\n"),
|
|
||||||
Ok(Response::Done {
|
|
||||||
tag: "a001".to_owned(),
|
|
||||||
status: Status::Ok,
|
|
||||||
code: None,
|
|
||||||
information: Some("LOGIN completed".to_owned()),
|
|
||||||
})
|
|
||||||
);
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response("* 18 EXISTS\r\n"),
|
|
||||||
Ok(Response::MailboxData(MailboxData::Exists(18)))
|
|
||||||
);
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response("* FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)\r\n"),
|
|
||||||
Ok(Response::MailboxData(MailboxData::Flags(vec![
|
|
||||||
MailboxFlag::Answered,
|
|
||||||
MailboxFlag::Flagged,
|
|
||||||
MailboxFlag::Deleted,
|
|
||||||
MailboxFlag::Seen,
|
|
||||||
MailboxFlag::Draft,
|
|
||||||
])))
|
|
||||||
);
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response("* 2 RECENT\r\n"),
|
|
||||||
Ok(Response::MailboxData(MailboxData::Recent(2)))
|
|
||||||
);
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response("* OK [UNSEEN 17] Message 17 is the first unseen message\r\n"),
|
|
||||||
Ok(Response::Data {
|
|
||||||
status: Status::Ok,
|
|
||||||
code: Some(ResponseCode::Unseen(17)),
|
|
||||||
information: Some("Message 17 is the first unseen message".to_owned()),
|
|
||||||
})
|
|
||||||
);
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response("* OK [UIDVALIDITY 3857529045] UIDs valid\r\n"),
|
|
||||||
Ok(Response::Data {
|
|
||||||
status: Status::Ok,
|
|
||||||
code: Some(ResponseCode::UidValidity(3857529045)),
|
|
||||||
information: Some("UIDs valid".to_owned()),
|
|
||||||
})
|
|
||||||
);
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response("a002 OK [READ-WRITE] SELECT completed\r\n"),
|
|
||||||
Ok(Response::Done {
|
|
||||||
tag: "a002".to_owned(),
|
|
||||||
status: Status::Ok,
|
|
||||||
code: Some(ResponseCode::ReadWrite),
|
|
||||||
information: Some("SELECT completed".to_owned()),
|
|
||||||
})
|
|
||||||
);
|
|
||||||
|
|
||||||
assert_eq!(
|
|
||||||
parse_response(concat!(
|
|
||||||
r#"* 12 FETCH (FLAGS (\Seen) INTERNALDATE "17-Jul-1996 02:44:25 -0700" RFC822.SIZE 4286 ENVELOPE ("Wed, 17 Jul 1996 02:23:25 -0700 (PDT)" "IMAP4rev1 WG mtg summary and minutes" (("Terry Gray" NIL "gray" "cac.washington.edu")) (("Terry Gray" NIL "gray" "cac.washington.edu")) (("Terry Gray" NIL "gray" "cac.washington.edu")) ((NIL NIL "imap" "cac.washington.edu")) ((NIL NIL "minutes" "CNRI.Reston.VA.US")("John Klensin" NIL "KLENSIN" "MIT.EDU")) NIL NIL "<B27397-0100000@cac.washington.edu>") BODY ("TEXT" "PLAIN" ("CHARSET" "US-ASCII") NIL NIL "7BIT" 302892))"#,
|
|
||||||
"\r\n",
|
|
||||||
)),
|
|
||||||
Ok(Response::Fetch(
|
|
||||||
12,
|
|
||||||
vec![
|
|
||||||
AttributeValue::Flags(vec![MailboxFlag::Seen]),
|
|
||||||
AttributeValue::InternalDate("\"17-Jul-1996 02:44:25 -0700\"".to_owned()),
|
|
||||||
AttributeValue::Rfc822Size(4286),
|
|
||||||
AttributeValue::Envelope(Envelope::default()),
|
|
||||||
AttributeValue::BodySection {
|
|
||||||
section: None,
|
|
||||||
index: None,
|
|
||||||
data: None,
|
|
||||||
},
|
|
||||||
]
|
|
||||||
))
|
|
||||||
);
|
|
||||||
}
|
|
||||||
}
|
|
|
@ -61,6 +61,7 @@ pub async fn run_mail(
|
||||||
}
|
}
|
||||||
|
|
||||||
for acct in config.mail_accounts.into_iter() {
|
for acct in config.mail_accounts.into_iter() {
|
||||||
|
let mail2ui_tx = mail2ui_tx.clone();
|
||||||
let handle = tokio::spawn(async move {
|
let handle = tokio::spawn(async move {
|
||||||
// debug!("opening imap connection for {:?}", acct);
|
// debug!("opening imap connection for {:?}", acct);
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue