1758 lines
60 KiB
Rust
1758 lines
60 KiB
Rust
/*
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||
* meli - parser module
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*
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* Copyright 2017 - 2020 Manos Pitsidianakis
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*
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* This file is part of meli.
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*
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* meli is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* meli is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with meli. If not, see <http://www.gnu.org/licenses/>.
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*/
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use crate::error::{MeliError, Result, ResultIntoMeliError};
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use nom::{
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branch::alt,
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bytes::complete::{is_a, is_not, tag, take_until, take_while},
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character::is_hex_digit,
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combinator::peek,
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error::ErrorKind,
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multi::{many0, many1, separated_list, separated_nonempty_list},
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number::complete::le_u8,
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sequence::{delimited, pair, preceded, separated_pair, terminated},
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};
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use std::borrow::Cow;
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#[derive(Debug, Eq, PartialEq)]
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pub struct ParsingError<I> {
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input: I,
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error: Cow<'static, str>,
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}
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pub type IResult<I, O, E = ParsingError<I>> = std::result::Result<(I, O), nom::Err<E>>;
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impl<'i> ParsingError<&'i str> {
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pub fn as_bytes(self) -> ParsingError<&'i [u8]> {
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ParsingError {
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input: self.input.as_bytes(),
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error: self.error,
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}
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}
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}
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impl<'i> From<(&'i [u8], &'static str)> for ParsingError<&'i [u8]> {
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fn from((input, error): (&'i [u8], &'static str)) -> Self {
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Self {
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input,
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error: error.into(),
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}
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}
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}
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impl<'i> From<(&'i [u8], String)> for ParsingError<&'i [u8]> {
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fn from((input, error): (&'i [u8], String)) -> Self {
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Self {
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input,
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error: error.into(),
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}
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}
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}
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impl<I> nom::error::ParseError<I> for ParsingError<I> {
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fn from_error_kind(input: I, kind: ErrorKind) -> Self {
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Self {
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input,
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error: kind.description().to_string().into(),
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}
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}
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fn append(input: I, kind: ErrorKind, other: Self) -> Self {
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Self {
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input,
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error: format!("{}, {}", kind.description(), other.error).into(),
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}
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}
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}
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impl<'i> From<ParsingError<&'i [u8]>> for MeliError {
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fn from(val: ParsingError<&'i [u8]>) -> MeliError {
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MeliError::new("Parsing error").set_summary(format!(
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r#"In input: "{}...",
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Error: {}"#,
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String::from_utf8_lossy(val.input)
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.chars()
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.take(30)
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.collect::<String>(),
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val.error
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))
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}
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}
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impl<'i> From<ParsingError<&'i str>> for MeliError {
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fn from(val: ParsingError<&'i str>) -> MeliError {
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MeliError::new("Parsing error").set_summary(format!(
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r#"In input: "{}...",
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Error: {}"#,
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val.input.chars().take(30).collect::<String>(),
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val.error
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))
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}
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}
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impl<'i> From<nom::Err<ParsingError<&'i [u8]>>> for MeliError {
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fn from(val: nom::Err<ParsingError<&'i [u8]>>) -> MeliError {
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match val {
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nom::Err::Incomplete(_) => MeliError::new("Parsing Error: Incomplete"),
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nom::Err::Error(err) | nom::Err::Failure(err) => err.into(),
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}
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}
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}
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impl<'i> From<nom::Err<ParsingError<&'i str>>> for MeliError {
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fn from(val: nom::Err<ParsingError<&'i str>>) -> MeliError {
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match val {
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nom::Err::Incomplete(_) => MeliError::new("Parsing Error: Incomplete"),
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nom::Err::Error(err) | nom::Err::Failure(err) => err.into(),
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}
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}
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}
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macro_rules! is_ctl_or_space {
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($var:ident) => {
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/* <any ASCII control character and DEL> */
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$var < 33 || $var == 127
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};
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($var:expr) => {
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/* <any ASCII control character and DEL> */
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$var < 33 || $var == 127
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};
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}
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macro_rules! is_whitespace {
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($var:ident) => {
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$var == b' ' || $var == b'\t' || $var == b'\n' || $var == b'\r'
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};
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($var:expr) => {
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$var == b' ' || $var == b'\t' || $var == b'\n' || $var == b'\r'
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};
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}
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pub trait BytesExt {
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fn rtrim(&self) -> &Self;
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fn ltrim(&self) -> &Self;
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fn trim(&self) -> &Self;
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fn find(&self, needle: &[u8]) -> Option<usize>;
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fn rfind(&self, needle: &[u8]) -> Option<usize>;
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fn replace(&self, from: &[u8], to: &[u8]) -> Vec<u8>;
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fn is_quoted(&self) -> bool;
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}
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impl BytesExt for [u8] {
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fn rtrim(&self) -> &Self {
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if let Some(last) = self.iter().rposition(|b| !is_whitespace!(*b)) {
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&self[..=last]
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} else {
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&[]
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}
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}
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fn ltrim(&self) -> &Self {
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if let Some(first) = self.iter().position(|b| !is_whitespace!(*b)) {
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&self[first..]
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} else {
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&[]
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}
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}
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fn trim(&self) -> &[u8] {
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self.rtrim().ltrim()
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}
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// https://stackoverflow.com/a/35907071
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fn find(&self, needle: &[u8]) -> Option<usize> {
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if needle.is_empty() {
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return None;
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}
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self.windows(needle.len())
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.position(|window| window == needle)
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}
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fn rfind(&self, needle: &[u8]) -> Option<usize> {
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if needle.is_empty() {
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return None;
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}
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self.windows(needle.len())
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.rposition(|window| window == needle)
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}
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fn replace(&self, from: &[u8], to: &[u8]) -> Vec<u8> {
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let mut ret = self.to_vec();
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if let Some(idx) = self.find(from) {
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ret.splice(idx..(idx + from.len()), to.iter().cloned());
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}
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ret
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}
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fn is_quoted(&self) -> bool {
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self.starts_with(b"\"") && self.ends_with(b"\"") && self.len() > 1
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}
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}
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pub trait BytesIterExt {
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fn join(&mut self, sep: u8) -> Vec<u8>;
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}
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impl<'a, P: for<'r> FnMut(&'r u8) -> bool> BytesIterExt for std::slice::Split<'a, u8, P> {
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fn join(&mut self, sep: u8) -> Vec<u8> {
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self.fold(vec![], |mut acc, el| {
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if !acc.is_empty() {
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acc.push(sep);
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}
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acc.extend(el.iter());
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acc
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})
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}
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}
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//fn parser(input: I) -> IResult<I, O, E>;
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pub fn mail(input: &[u8]) -> Result<(Vec<(&[u8], &[u8])>, &[u8])> {
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let (rest, result) = alt((
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separated_pair(
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headers::headers,
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alt((tag(b"\n"), tag(b"\r\n"))),
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take_while(|_| true),
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),
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pair(headers::headers, generic::eof),
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))(input)
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.chain_err_summary(|| "Could not parse mail")?;
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if !rest.is_empty() {
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return Err(MeliError::new("Got leftover bytes after parsing mail"));
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}
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Ok(result)
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}
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pub mod generic {
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use super::*;
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pub fn angle_bracket_delimeted_list(input: &[u8]) -> IResult<&[u8], Vec<&[u8]>> {
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separated_nonempty_list(is_a(","), delimited(tag("<"), take_until(">"), tag(">")))(
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input.rtrim(),
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)
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// separated_nonempty_list!(complete!(is_a!(",")), ws!(complete!(complete!(delimited!(tag!("<"), take_until1!(">"), tag!(">")))))));
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}
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pub fn date(input: &[u8]) -> Result<crate::datetime::UnixTimestamp> {
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let (_, mut parsed_result) = encodings::phrase(&eat_comments(input), false)?;
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if let Some(pos) = parsed_result.find(b"-0000") {
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parsed_result[pos] = b'+';
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}
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crate::datetime::rfc822_to_timestamp(parsed_result.trim())
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}
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fn eat_comments(input: &[u8]) -> Vec<u8> {
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let mut in_comment = false;
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input
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.iter()
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.fold(Vec::with_capacity(input.len()), |mut acc, x| {
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if *x == b'(' && !in_comment {
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in_comment = true;
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acc
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} else if *x == b')' && in_comment {
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in_comment = false;
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acc
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} else if in_comment {
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acc
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} else {
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acc.push(*x);
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acc
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}
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})
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}
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use crate::email::address::Address;
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use crate::email::mailto::Mailto;
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pub fn mailto(mut input: &[u8]) -> IResult<&[u8], Mailto> {
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if !input.starts_with(b"mailto:") {
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return Err(nom::Err::Error(
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(input, "mailto(): input doesn't start with `mailto:`").into(),
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));
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}
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input = &input[b"mailto:".len()..];
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let end = input.iter().position(|e| *e == b'?').unwrap_or(input.len());
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let address: Address;
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if let Ok((_, addr)) = crate::email::parser::address::address(&input[..end]) {
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address = addr;
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input = if input[end..].is_empty() {
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&input[end..]
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} else {
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&input[end + 1..]
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};
|
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} else {
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||
return Err(nom::Err::Error(
|
||
(input, "mailto(): address not found in input").into(),
|
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));
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}
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let mut subject = None;
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let mut cc = None;
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let mut bcc = None;
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let mut body = None;
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while !input.is_empty() {
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let tag = if let Some(tag_pos) = input.iter().position(|e| *e == b'=') {
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let ret = &input[0..tag_pos];
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input = &input[tag_pos + 1..];
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ret
|
||
} else {
|
||
return Err(nom::Err::Error(
|
||
(input, "mailto(): extra characters found in input").into(),
|
||
));
|
||
};
|
||
|
||
let value_end = input.iter().position(|e| *e == b'&').unwrap_or(input.len());
|
||
|
||
let value = String::from_utf8_lossy(&input[..value_end]).to_string();
|
||
match tag {
|
||
b"subject" if subject.is_none() => {
|
||
subject = Some(value);
|
||
}
|
||
b"cc" if cc.is_none() => {
|
||
cc = Some(value);
|
||
}
|
||
b"bcc" if bcc.is_none() => {
|
||
bcc = Some(value);
|
||
}
|
||
b"body" if body.is_none() => {
|
||
/* FIXME:
|
||
* Parse escaped characters properly.
|
||
*/
|
||
body = Some(value.replace("%20", " ").replace("%0A", "\n"));
|
||
}
|
||
_ => {
|
||
return Err(nom::Err::Error(
|
||
(input, "mailto(): unknown tag in input").into(),
|
||
));
|
||
}
|
||
}
|
||
if input[value_end..].is_empty() {
|
||
break;
|
||
}
|
||
input = &input[value_end + 1..];
|
||
}
|
||
Ok((
|
||
input,
|
||
Mailto {
|
||
address,
|
||
subject,
|
||
cc,
|
||
bcc,
|
||
body,
|
||
},
|
||
))
|
||
}
|
||
|
||
pub struct HeaderIterator<'a>(pub &'a [u8]);
|
||
|
||
impl<'a> Iterator for HeaderIterator<'a> {
|
||
type Item = (&'a [u8], &'a [u8]);
|
||
fn next(&mut self) -> Option<(&'a [u8], &'a [u8])> {
|
||
if self.0.is_empty() {
|
||
return None;
|
||
}
|
||
|
||
match super::headers::header(self.0) {
|
||
Ok((rest, value)) => {
|
||
self.0 = rest;
|
||
Some(value)
|
||
}
|
||
_ => {
|
||
self.0 = &[];
|
||
None
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
pub fn eof(input: &[u8]) -> IResult<&[u8], &[u8]> {
|
||
if input.is_empty() {
|
||
Ok((input, input))
|
||
} else {
|
||
Err(nom::Err::Error((input, "expected EOF").into()))
|
||
}
|
||
}
|
||
}
|
||
|
||
pub mod headers {
|
||
use super::*;
|
||
|
||
pub fn headers(input: &[u8]) -> IResult<&[u8], Vec<(&[u8], &[u8])>> {
|
||
many1(header)(input)
|
||
}
|
||
|
||
pub fn header(input: &[u8]) -> IResult<&[u8], (&[u8], &[u8])> {
|
||
alt((header_without_val, header_with_val))(input)
|
||
}
|
||
|
||
pub fn header_without_val(input: &[u8]) -> IResult<&[u8], (&[u8], &[u8])> {
|
||
if input.is_empty() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_without_val(): input is empty").into(),
|
||
));
|
||
} else if input.starts_with(b"\n") || input.starts_with(b"\r\n") {
|
||
return Err(nom::Err::Error(
|
||
(
|
||
input,
|
||
"header_without_val(): input starts with folding whitespace",
|
||
)
|
||
.into(),
|
||
));
|
||
}
|
||
let mut ptr = 0;
|
||
let mut name: &[u8] = &[];
|
||
let mut has_colon = false;
|
||
/* field-name = 1*<any CHAR, excluding CTLs, SPACE, and ":"> */
|
||
for (i, x) in input.iter().enumerate() {
|
||
if input[i..].starts_with(b"\r\n") {
|
||
name = &input[0..i];
|
||
ptr = i + 2;
|
||
break;
|
||
} else if *x == b':' {
|
||
name = &input[0..i];
|
||
has_colon = true;
|
||
ptr = i;
|
||
break;
|
||
} else if *x == b'\n' {
|
||
name = &input[0..i];
|
||
ptr = i;
|
||
break;
|
||
} else if is_ctl_or_space!(*x) {
|
||
return Err(nom::Err::Error((
|
||
input,
|
||
r#"header_without_val(): field-name should contain "any CHAR, excluding CTLs, SPACE, and ":""#,
|
||
).into()));
|
||
}
|
||
}
|
||
if name.is_empty() || input.len() <= ptr {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_without_val(): not enough input").into(),
|
||
));
|
||
}
|
||
if input[ptr] == b':' {
|
||
ptr += 1;
|
||
has_colon = true;
|
||
if ptr >= input.len() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_without_val(): EOF after colon").into(),
|
||
));
|
||
}
|
||
}
|
||
|
||
if !has_colon {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_without_val(): no colon found").into(),
|
||
));
|
||
}
|
||
|
||
while input[ptr] == b' ' {
|
||
ptr += 1;
|
||
if ptr >= input.len() {
|
||
return Err(nom::Err::Error(
|
||
(
|
||
input,
|
||
"header_without_val(): expected start of next field, found EOF",
|
||
)
|
||
.into(),
|
||
));
|
||
}
|
||
}
|
||
if input[ptr..].starts_with(b"\n") {
|
||
ptr += 1;
|
||
if ptr >= input.len() {
|
||
return Err(nom::Err::Error(
|
||
(
|
||
input,
|
||
"header_without_val(): expected folding whitespace, found EOF",
|
||
)
|
||
.into(),
|
||
));
|
||
}
|
||
if input.len() > ptr && input[ptr] != b' ' && input[ptr] != b'\t' {
|
||
Ok((&input[ptr..], (name, b"")))
|
||
} else {
|
||
Err(nom::Err::Error(
|
||
(
|
||
input,
|
||
"header_without_val(): expected folding whitespace, found EOF",
|
||
)
|
||
.into(),
|
||
))
|
||
}
|
||
} else if input[ptr..].starts_with(b"\r\n") {
|
||
ptr += 2;
|
||
if ptr > input.len() {
|
||
return Err(nom::Err::Error(
|
||
(
|
||
input,
|
||
"header_without_val(): expected folding whitespace, found EOF",
|
||
)
|
||
.into(),
|
||
));
|
||
}
|
||
if input.len() > ptr && input[ptr] != b' ' && input[ptr] != b'\t' {
|
||
Ok((&input[ptr..], (name, b"")))
|
||
} else {
|
||
Err(nom::Err::Error(
|
||
(
|
||
&input[ptr..],
|
||
"header_without_val(): expected folding whitespace, found EOF",
|
||
)
|
||
.into(),
|
||
))
|
||
}
|
||
} else {
|
||
Err(nom::Err::Error(
|
||
(
|
||
&input[ptr..],
|
||
"header_without_val(): expected folding whitespace (newline)",
|
||
)
|
||
.into(),
|
||
))
|
||
}
|
||
}
|
||
|
||
/* A header can span multiple lines, eg:
|
||
*
|
||
* Received: from -------------------- (-------------------------)
|
||
* by --------------------- (--------------------- [------------------]) (-----------------------)
|
||
* with ESMTP id ------------ for <------------------->;
|
||
* Tue, 5 Jan 2016 21:30:44 +0100 (CET)
|
||
*/
|
||
|
||
pub fn header_value(input: &[u8]) -> IResult<&[u8], &[u8]> {
|
||
let input_len = input.len();
|
||
for (i, x) in input.iter().enumerate() {
|
||
if *x == b'\n'
|
||
&& (((i + 1) < input_len && input[i + 1] != b' ' && input[i + 1] != b'\t')
|
||
|| i + 1 == input_len)
|
||
{
|
||
return Ok((&input[(i + 1)..], &input[0..i]));
|
||
} else if input[i..].starts_with(b"\r\n")
|
||
&& (((i + 2) < input_len && input[i + 2] != b' ' && input[i + 2] != b'\t')
|
||
|| i + 2 == input_len)
|
||
{
|
||
return Ok((&input[(i + 2)..], &input[0..i]));
|
||
}
|
||
}
|
||
Err(nom::Err::Error(
|
||
(
|
||
input,
|
||
"header_value(): expected new line after header value",
|
||
)
|
||
.into(),
|
||
))
|
||
}
|
||
|
||
/* Parse a single header as a tuple */
|
||
pub fn header_with_val(input: &[u8]) -> IResult<&[u8], (&[u8], &[u8])> {
|
||
if input.is_empty() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_with_val(): empty input").into(),
|
||
));
|
||
} else if input.starts_with(b"\n") || input.starts_with(b"\r\n") {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_with_val(): field name starts with new line").into(),
|
||
));
|
||
}
|
||
let mut ptr = 0;
|
||
let mut name: &[u8] = &[];
|
||
/* field-name = 1*<any CHAR, excluding CTLs, SPACE, and ":"> */
|
||
for (i, x) in input.iter().enumerate() {
|
||
if *x == b':' {
|
||
name = &input[0..i];
|
||
ptr = i + 1;
|
||
break;
|
||
} else if is_ctl_or_space!(*x) {
|
||
return Err(nom::Err::Error(
|
||
(
|
||
&input[i..],
|
||
format!("header_with_val(): invalid character: {:?}", *x as char),
|
||
)
|
||
.into(),
|
||
));
|
||
}
|
||
}
|
||
if name.is_empty() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_with_val(): found empty header name ").into(),
|
||
));
|
||
}
|
||
if ptr >= input.len() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_with_val(): found EOF").into(),
|
||
));
|
||
}
|
||
|
||
if input[ptr] == b'\n' {
|
||
ptr += 1;
|
||
if ptr >= input.len() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_with_val(): found EOF").into(),
|
||
));
|
||
}
|
||
} else if input[ptr..].starts_with(b"\r\n") {
|
||
ptr += 2;
|
||
if ptr > input.len() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_with_val(): found EOF").into(),
|
||
));
|
||
}
|
||
}
|
||
if ptr >= input.len() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_with_val(): found EOF").into(),
|
||
));
|
||
}
|
||
while input[ptr] == b' ' || input[ptr] == b'\t' {
|
||
ptr += 1;
|
||
if ptr >= input.len() {
|
||
return Err(nom::Err::Error(
|
||
(input, "header_with_val(): found EOF").into(),
|
||
));
|
||
}
|
||
}
|
||
header_value(&input[ptr..]).map(|(rest, value)| (rest, (name, value)))
|
||
}
|
||
|
||
pub fn headers_raw(input: &[u8]) -> IResult<&[u8], &[u8]> {
|
||
if input.is_empty() {
|
||
return Err(nom::Err::Error(
|
||
(input, "headers_raw(): input is empty").into(),
|
||
));
|
||
}
|
||
for i in 0..input.len() {
|
||
if input[i..].starts_with(b"\n\n") {
|
||
return Ok((&input[(i + 1)..], &input[0..=i]));
|
||
} else if input[i..].starts_with(b"\r\n\r\n") {
|
||
return Ok((&input[(i + 2)..], &input[0..=i]));
|
||
}
|
||
}
|
||
Err(nom::Err::Error(
|
||
(input, "headers_raw(): got EOF while looking for new line").into(),
|
||
))
|
||
}
|
||
}
|
||
|
||
pub mod attachments {
|
||
use super::*;
|
||
use crate::email::address::*;
|
||
use crate::email::attachment_types::{ContentDisposition, ContentDispositionKind};
|
||
pub fn attachment(input: &[u8]) -> IResult<&[u8], (std::vec::Vec<(&[u8], &[u8])>, &[u8])> {
|
||
alt((
|
||
separated_pair(
|
||
many0(headers::header),
|
||
alt((tag(b"\n"), tag(b"\r\n"))),
|
||
take_while(|_| true),
|
||
),
|
||
pair(headers::headers, generic::eof),
|
||
))(input)
|
||
}
|
||
|
||
pub fn multipart_parts<'a>(
|
||
input: &'a [u8],
|
||
boundary: &[u8],
|
||
) -> IResult<&'a [u8], Vec<StrBuilder>> {
|
||
let mut ret: Vec<_> = Vec::new();
|
||
let mut input = input;
|
||
let mut offset = 0;
|
||
loop {
|
||
let b_start = if let Some(v) = input.find(boundary) {
|
||
v
|
||
} else {
|
||
return Err(nom::Err::Error(
|
||
(input, "multipart_parts(): could not find starting boundary").into(),
|
||
));
|
||
};
|
||
|
||
if b_start < 2 {
|
||
return Err(nom::Err::Error(
|
||
(input, "multipart_parts(): malformed boundary").into(),
|
||
));
|
||
}
|
||
offset += b_start - 2;
|
||
input = &input[b_start - 2..];
|
||
if &input[0..2] == b"--" {
|
||
offset += 2 + boundary.len();
|
||
input = &input[2 + boundary.len()..];
|
||
if input[0] == b'\n' {
|
||
offset += 1;
|
||
input = &input[1..];
|
||
} else if input[0..].starts_with(b"\r\n") {
|
||
offset += 2;
|
||
input = &input[2..];
|
||
} else {
|
||
continue;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
loop {
|
||
if input.len() < boundary.len() + 4 {
|
||
return Err(nom::Err::Error(
|
||
(input, "multipart_parts(): found EOF").into(),
|
||
));
|
||
}
|
||
if let Some(end) = input.find(boundary) {
|
||
if &input[end - 2..end] != b"--" {
|
||
return Err(nom::Err::Error(
|
||
(input, "multipart_parts(): malformed boundary").into(),
|
||
));
|
||
}
|
||
if input[..end - 2].ends_with(b"\r\n") {
|
||
ret.push(StrBuilder {
|
||
offset,
|
||
length: end - 4,
|
||
});
|
||
} else {
|
||
ret.push(StrBuilder {
|
||
offset,
|
||
length: end - 3,
|
||
});
|
||
}
|
||
offset += end + boundary.len();
|
||
input = &input[end + boundary.len()..];
|
||
if input.len() < 2 || input[0] != b'\n' || &input[0..2] == b"--" {
|
||
break;
|
||
}
|
||
if input[0] == b'\n' {
|
||
offset += 1;
|
||
input = &input[1..];
|
||
} else if input[0..].starts_with(b"\r\n") {
|
||
offset += 2;
|
||
input = &input[2..];
|
||
}
|
||
} else {
|
||
ret.push(StrBuilder {
|
||
offset,
|
||
length: input.len(),
|
||
});
|
||
break;
|
||
}
|
||
}
|
||
Ok((input, ret))
|
||
}
|
||
|
||
fn parts_f(boundary: &[u8]) -> impl Fn(&[u8]) -> IResult<&[u8], Vec<&[u8]>> + '_ {
|
||
move |input: &[u8]| -> IResult<&[u8], Vec<&[u8]>> {
|
||
let mut ret: Vec<&[u8]> = Vec::new();
|
||
let mut input = input;
|
||
loop {
|
||
let b_start = if let Some(v) = input.find(boundary) {
|
||
v
|
||
} else {
|
||
return Err(nom::Err::Error(
|
||
(input, "parts_f(): could not find starting boundary").into(),
|
||
));
|
||
};
|
||
|
||
if b_start < 2 {
|
||
return Err(nom::Err::Error(
|
||
(input, "parts_f(): malformed boundary").into(),
|
||
));
|
||
}
|
||
input = &input[b_start - 2..];
|
||
if &input[0..2] == b"--" {
|
||
input = &input[2 + boundary.len()..];
|
||
if input[0] == b'\n' {
|
||
input = &input[1..];
|
||
} else if input[0..].starts_with(b"\r\n") {
|
||
input = &input[2..];
|
||
} else {
|
||
continue;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
loop {
|
||
if input.len() < boundary.len() + 4 {
|
||
return Err(nom::Err::Error((input, "parts_f(): found EOF").into()));
|
||
}
|
||
if let Some(end) = input.find(boundary) {
|
||
if &input[end - 2..end] != b"--" {
|
||
return Err(nom::Err::Error((input, "parts_f(): found EOF").into()));
|
||
}
|
||
if input[..end - 2].ends_with(b"\r\n") {
|
||
ret.push(&input[..end - 4]);
|
||
} else {
|
||
ret.push(&input[..end - 3]);
|
||
}
|
||
input = &input[end + boundary.len()..];
|
||
if input.len() < 2
|
||
|| (input[0] != b'\n' && &input[0..2] != b"\r\n")
|
||
|| &input[0..2] == b"--"
|
||
{
|
||
break;
|
||
}
|
||
if input[0] == b'\n' {
|
||
input = &input[1..];
|
||
} else if input[0..].starts_with(b"\r\n") {
|
||
input = &input[2..];
|
||
}
|
||
} else {
|
||
ret.push(input);
|
||
break;
|
||
}
|
||
}
|
||
Ok((input, ret))
|
||
}
|
||
}
|
||
|
||
pub fn parts<'a>(input: &'a [u8], boundary: &[u8]) -> IResult<&'a [u8], Vec<&'a [u8]>> {
|
||
alt((
|
||
parts_f(boundary),
|
||
|input: &'a [u8]| -> IResult<&'a [u8], Vec<&'a [u8]>> {
|
||
let (input, _) = take_until(&b"--"[..])(input)?;
|
||
let (input, _) = take_until(boundary)(input)?;
|
||
Ok((input, Vec::<&[u8]>::new()))
|
||
},
|
||
))(input)
|
||
/*
|
||
alt_complete!(call!(parts_f, boundary) | do_parse!(
|
||
take_until_and_consume!(&b"--"[..]) >>
|
||
take_until_and_consume!(boundary) >>
|
||
( { Vec::<&[u8]>::new() } ))
|
||
));
|
||
*/
|
||
}
|
||
|
||
/* Caution: values should be passed through phrase() */
|
||
pub fn content_type_parameter(input: &[u8]) -> IResult<&[u8], (&[u8], &[u8])> {
|
||
let (input, _) = tag(";")(input.ltrim())?;
|
||
let (input, name) = terminated(take_until("="), tag("="))(input.ltrim())?;
|
||
let (input, value) = alt((
|
||
delimited(tag("\""), take_until("\""), tag("\"")),
|
||
is_not(";"),
|
||
))(input.ltrim())?;
|
||
|
||
Ok((input, (name, value)))
|
||
}
|
||
|
||
pub fn content_type(input: &[u8]) -> IResult<&[u8], (&[u8], &[u8], Vec<(&[u8], &[u8])>)> {
|
||
let (input, _type) = take_until("/")(input.ltrim())?;
|
||
let (input, _) = tag("/")(input)?;
|
||
let (input, _subtype) = is_not(";")(input)?;
|
||
let (input, parameters) = many0(content_type_parameter)(input)?;
|
||
Ok((input, (_type, _subtype, parameters)))
|
||
/*
|
||
do_parse!(
|
||
_type: take_until!("/") >>
|
||
tag!("/") >>
|
||
_subtype: is_not!(";") >>
|
||
parameters: many0!(complete!(content_type_parameter)) >>
|
||
( {
|
||
(_type, _subtype, parameters)
|
||
} )
|
||
));
|
||
*/
|
||
}
|
||
|
||
/* Caution: values should be passed through phrase() */
|
||
pub fn content_disposition_parameter(input: &[u8]) -> IResult<&[u8], (&[u8], &[u8])> {
|
||
let (input, _) = tag(";")(input.ltrim())?;
|
||
let (input, name) = terminated(take_until("="), tag("="))(input.ltrim())?;
|
||
let (input, value) = alt((
|
||
delimited(tag("\""), take_until("\""), tag("\"")),
|
||
is_not(";"),
|
||
))(input.ltrim())?;
|
||
|
||
Ok((input, (name, value)))
|
||
}
|
||
|
||
pub fn content_disposition(input: &[u8]) -> IResult<&[u8], ContentDisposition> {
|
||
let (input, kind) = alt((take_until(";"), take_while(|_| true)))(input.trim())?;
|
||
let mut ret = ContentDisposition {
|
||
kind: if kind.trim().eq_ignore_ascii_case(b"attachment") {
|
||
ContentDispositionKind::Attachment
|
||
} else {
|
||
ContentDispositionKind::Inline
|
||
},
|
||
..ContentDisposition::default()
|
||
};
|
||
if input.is_empty() {
|
||
return Ok((input, ret));
|
||
}
|
||
let (input, parameters) = many0(content_disposition_parameter)(input.ltrim())?;
|
||
for (k, v) in parameters {
|
||
if k.eq_ignore_ascii_case(b"filename") {
|
||
ret.filename =
|
||
Some(String::from_utf8_lossy(&super::encodings::phrase(v, false)?.1).into());
|
||
} else if k.eq_ignore_ascii_case(b"size") {
|
||
ret.size =
|
||
Some(String::from_utf8_lossy(&super::encodings::phrase(v, false)?.1).into());
|
||
} else if k.eq_ignore_ascii_case(b"creation-date") {
|
||
ret.creation_date =
|
||
Some(String::from_utf8_lossy(&super::encodings::phrase(v, false)?.1).into());
|
||
} else if k.eq_ignore_ascii_case(b"modification-date") {
|
||
ret.modification_date =
|
||
Some(String::from_utf8_lossy(&super::encodings::phrase(v, false)?.1).into());
|
||
} else if k.eq_ignore_ascii_case(b"read-date") {
|
||
ret.read_date =
|
||
Some(String::from_utf8_lossy(&super::encodings::phrase(v, false)?.1).into());
|
||
} else {
|
||
ret.parameter
|
||
.push(String::from_utf8_lossy(&super::encodings::phrase(v, false)?.1).into());
|
||
}
|
||
}
|
||
Ok((input, ret))
|
||
}
|
||
}
|
||
|
||
pub mod encodings {
|
||
use super::*;
|
||
use crate::email::attachment_types::Charset;
|
||
use data_encoding::BASE64_MIME;
|
||
use encoding::all::*;
|
||
use encoding::{DecoderTrap, Encoding};
|
||
pub fn quoted_printable_byte(input: &[u8]) -> IResult<&[u8], u8> {
|
||
if input.len() < 3 {
|
||
Err(nom::Err::Error(
|
||
(
|
||
input,
|
||
"quoted_printable_byte(): input too short to be quoted_printable",
|
||
)
|
||
.into(),
|
||
))
|
||
} else if input[0] == b'=' && is_hex_digit(input[1]) && is_hex_digit(input[2]) {
|
||
let a = if input[1] < b':' {
|
||
input[1] - 48
|
||
} else if input[1] < b'[' {
|
||
input[1] - 55
|
||
} else {
|
||
input[1] - 87
|
||
};
|
||
let b = if input[2] < b':' {
|
||
input[2] - 48
|
||
} else if input[2] < b'[' {
|
||
input[2] - 55
|
||
} else {
|
||
input[2] - 87
|
||
};
|
||
Ok((&input[3..], a * 16 + b))
|
||
} else if input.starts_with(b"\r\n") {
|
||
Ok((&input[2..], b'\n'))
|
||
} else {
|
||
Err(nom::Err::Error(
|
||
(input, "quoted_printable_byte(): invalid input").into(),
|
||
))
|
||
}
|
||
}
|
||
|
||
/* Encoded words
|
||
*"=?charset?encoding?encoded text?=".
|
||
*/
|
||
fn encoded_word(input: &[u8]) -> IResult<&[u8], Vec<u8>> {
|
||
if input.is_empty() {
|
||
return Ok((&[], Vec::with_capacity(0)));
|
||
}
|
||
if input.len() < 5 {
|
||
return Err(nom::Err::Error(
|
||
(input, "encoded_word(): input too short to be encoded_word").into(),
|
||
));
|
||
} else if input[0] != b'=' || input[1] != b'?' {
|
||
return Err(nom::Err::Error(
|
||
(input, "encoded_word(): invalid input").into(),
|
||
));
|
||
}
|
||
/* find end of Charset tag:
|
||
* =?charset?encoding?encoded text?=
|
||
* ---------^
|
||
*/
|
||
let mut tag_end_idx = None;
|
||
for (idx, b) in input[2..].iter().enumerate() {
|
||
if *b == b'?' {
|
||
tag_end_idx = Some(idx + 2);
|
||
break;
|
||
}
|
||
}
|
||
if tag_end_idx.is_none() {
|
||
return Err(nom::Err::Error(
|
||
(input, "encoded_word(): expected end tag").into(),
|
||
));
|
||
}
|
||
let tag_end_idx = tag_end_idx.unwrap();
|
||
|
||
if tag_end_idx + 2 >= input.len() || input[2 + tag_end_idx] != b'?' {
|
||
return Err(nom::Err::Error(
|
||
(input, "encoded_word(): expected valid end tag").into(),
|
||
));
|
||
}
|
||
/* See if input ends with "?=" and get ending index
|
||
* =?charset?encoding?encoded text?=
|
||
* -------------------------------^
|
||
*/
|
||
let mut encoded_end_idx = None;
|
||
for i in (3 + tag_end_idx)..input.len() {
|
||
if input[i] == b'?' && i + 1 < input.len() && input[i + 1] == b'=' {
|
||
encoded_end_idx = Some(i);
|
||
break;
|
||
}
|
||
}
|
||
if encoded_end_idx.is_none() {
|
||
return Err(nom::Err::Error(
|
||
(input, "encoded_word(): expected input after end tag").into(),
|
||
));
|
||
}
|
||
let encoded_end_idx = encoded_end_idx.unwrap();
|
||
let encoded_text = &input[3 + tag_end_idx..encoded_end_idx];
|
||
|
||
let s: Vec<u8> = match input[tag_end_idx + 1] {
|
||
b'b' | b'B' => match BASE64_MIME.decode(encoded_text) {
|
||
Ok(v) => v,
|
||
Err(_) => encoded_text.to_vec(),
|
||
},
|
||
b'q' | b'Q' => match quoted_printable_bytes_header(encoded_text) {
|
||
Ok((b"", s)) => s,
|
||
_ => {
|
||
return Err(nom::Err::Error(
|
||
(input, "encoded_word(): invalid quoted_printable").into(),
|
||
))
|
||
}
|
||
},
|
||
_ => {
|
||
return Err(nom::Err::Error(
|
||
(input, "encoded_word(): expected 'b|q'").into(),
|
||
))
|
||
}
|
||
};
|
||
|
||
let charset = Charset::from(&input[2..tag_end_idx]);
|
||
|
||
if let Charset::UTF8 = charset {
|
||
Ok((&input[encoded_end_idx + 2..], s))
|
||
} else {
|
||
match decode_charset(&s, charset) {
|
||
Ok(v) => Ok((&input[encoded_end_idx + 2..], v.into_bytes())),
|
||
_ => Err(nom::Err::Error(
|
||
(
|
||
input,
|
||
format!("encoded_word(): unknown charset {:?}", charset),
|
||
)
|
||
.into(),
|
||
)),
|
||
}
|
||
}
|
||
}
|
||
|
||
pub fn decode_charset(s: &[u8], charset: Charset) -> Result<String> {
|
||
match charset {
|
||
Charset::UTF8 | Charset::Ascii => Ok(String::from_utf8_lossy(s).to_string()),
|
||
Charset::ISO8859_1 => Ok(ISO_8859_1.decode(s, DecoderTrap::Strict)?),
|
||
Charset::ISO8859_2 => Ok(ISO_8859_2.decode(s, DecoderTrap::Strict)?),
|
||
Charset::ISO8859_7 => Ok(ISO_8859_7.decode(s, DecoderTrap::Strict)?),
|
||
Charset::ISO8859_15 => Ok(ISO_8859_15.decode(s, DecoderTrap::Strict)?),
|
||
Charset::GBK => Ok(GBK.decode(s, DecoderTrap::Strict)?),
|
||
Charset::Windows1250 => Ok(WINDOWS_1250.decode(s, DecoderTrap::Strict)?),
|
||
Charset::Windows1251 => Ok(WINDOWS_1251.decode(s, DecoderTrap::Strict)?),
|
||
Charset::Windows1252 => Ok(WINDOWS_1252.decode(s, DecoderTrap::Strict)?),
|
||
Charset::Windows1253 => Ok(WINDOWS_1253.decode(s, DecoderTrap::Strict)?),
|
||
// Unimplemented:
|
||
Charset::GB2312 => Ok(String::from_utf8_lossy(s).to_string()),
|
||
Charset::UTF16 => Ok(String::from_utf8_lossy(s).to_string()),
|
||
Charset::BIG5 => Ok(String::from_utf8_lossy(s).to_string()),
|
||
Charset::ISO2022JP => Ok(String::from_utf8_lossy(s).to_string()),
|
||
}
|
||
}
|
||
|
||
fn quoted_printable_soft_break(input: &[u8]) -> IResult<&[u8], &[u8]> {
|
||
if input.len() < 2 {
|
||
Err(nom::Err::Error(
|
||
(input, "quoted_printable_soft_break(): found EOF").into(),
|
||
))
|
||
} else if input[0] == b'=' && input[1] == b'\n' {
|
||
Ok((&input[2..], &input[0..2])) // `=\n` is an escaped space character.
|
||
} else if input.len() > 3 && input.starts_with(b"=\r\n") {
|
||
Ok((&input[3..], &input[0..3])) // `=\r\n` is an escaped space character.
|
||
} else {
|
||
Err(nom::Err::Error(
|
||
(input, "quoted_printable_soft_break(): invalid input").into(),
|
||
))
|
||
}
|
||
}
|
||
|
||
pub fn qp_underscore_header(input: &[u8]) -> IResult<&[u8], u8> {
|
||
let (rest, _) = tag(b"_")(input)?;
|
||
Ok((rest, 0x20))
|
||
}
|
||
|
||
// With MIME, headers in quoted printable format can contain underscores that represent spaces.
|
||
// In non-header context, an underscore is just a plain underscore.
|
||
pub fn quoted_printable_bytes_header(input: &[u8]) -> IResult<&[u8], Vec<u8>> {
|
||
many0(alt((quoted_printable_byte, qp_underscore_header, le_u8)))(input)
|
||
}
|
||
|
||
// For atoms in Header values.
|
||
pub fn quoted_printable_bytes(input: &[u8]) -> IResult<&[u8], Vec<u8>> {
|
||
many0(alt((
|
||
preceded(quoted_printable_soft_break, quoted_printable_byte),
|
||
preceded(quoted_printable_soft_break, le_u8),
|
||
quoted_printable_byte,
|
||
le_u8,
|
||
)))(input)
|
||
}
|
||
|
||
pub fn space(input: &[u8]) -> IResult<&[u8], ()> {
|
||
let (rest, _) =
|
||
take_while(|c: u8| c == b' ' || c == b'\t' || c == b'\r' || c == b'\n')(input)?;
|
||
Ok((rest, ()))
|
||
//eat_separator!());
|
||
}
|
||
|
||
pub fn encoded_word_list(input: &[u8]) -> IResult<&[u8], Vec<u8>> {
|
||
let (input, list) = separated_nonempty_list(space, encoded_word)(input)?;
|
||
let list_len = list.iter().fold(0, |mut acc, x| {
|
||
acc += x.len();
|
||
acc
|
||
});
|
||
Ok((
|
||
input,
|
||
list.iter()
|
||
.fold(Vec::with_capacity(list_len), |mut acc, x| {
|
||
acc.append(&mut x.clone());
|
||
acc
|
||
}),
|
||
))
|
||
}
|
||
|
||
pub fn ascii_token(input: &[u8]) -> IResult<&[u8], Vec<u8>> {
|
||
let (input, word) = alt((
|
||
terminated(take_until(" =?"), peek(preceded(tag(b" "), encoded_word))),
|
||
take_while(|_| true),
|
||
))(input)?;
|
||
Ok((input, word.to_vec()))
|
||
}
|
||
|
||
pub fn phrase(
|
||
input: &[u8],
|
||
multiline: /* preserve newlines */ bool,
|
||
) -> IResult<&[u8], Vec<u8>> {
|
||
if input.is_empty() {
|
||
return Ok((&[], Vec::with_capacity(0)));
|
||
}
|
||
|
||
let mut input = input.ltrim();
|
||
let mut acc: Vec<u8> = Vec::new();
|
||
let mut ptr = 0;
|
||
|
||
while ptr < input.len() {
|
||
let mut flag = false;
|
||
// Check if word is encoded.
|
||
while let Ok((rest, v)) = encoded_word(&input[ptr..]) {
|
||
flag = true;
|
||
input = rest;
|
||
ptr = 0;
|
||
acc.extend(v);
|
||
|
||
// consume whitespace
|
||
while ptr < input.len() && (is_whitespace!(input[ptr])) {
|
||
ptr += 1;
|
||
}
|
||
|
||
if ptr >= input.len() {
|
||
break;
|
||
}
|
||
}
|
||
if flag && ptr < input.len() && ptr != 0 {
|
||
acc.push(b' ');
|
||
}
|
||
let end = input[ptr..].find(b"=?");
|
||
|
||
let end = end.unwrap_or_else(|| input.len() - ptr) + ptr;
|
||
let ascii_s = ptr;
|
||
let mut ascii_e = 0;
|
||
|
||
while ptr < end && !(is_whitespace!(input[ptr])) {
|
||
ptr += 1;
|
||
}
|
||
if !multiline {
|
||
ascii_e = ptr;
|
||
}
|
||
|
||
while ptr < input.len() && (is_whitespace!(input[ptr])) {
|
||
ptr += 1;
|
||
}
|
||
if multiline {
|
||
ascii_e = ptr;
|
||
}
|
||
if ptr >= input.len() {
|
||
acc.extend(ascii_token(&input[ascii_s..ascii_e])?.1);
|
||
break;
|
||
}
|
||
if ascii_s >= ascii_e {
|
||
/* We have the start of an encoded word but not the end, so parse it as ascii */
|
||
ascii_e = input[ascii_s..]
|
||
.find(b" ")
|
||
.unwrap_or_else(|| ascii_s + input[ascii_s..].len());
|
||
ptr = ascii_e;
|
||
}
|
||
if ascii_s >= ascii_e {
|
||
return Err(nom::Err::Error(
|
||
(input, "phrase(): start of an encoded word but no end").into(),
|
||
));
|
||
}
|
||
|
||
acc.extend(ascii_token(&input[ascii_s..ascii_e])?.1);
|
||
if ptr != ascii_e {
|
||
acc.push(b' ');
|
||
}
|
||
}
|
||
Ok((&input[ptr..], acc))
|
||
}
|
||
}
|
||
|
||
pub mod address {
|
||
use super::*;
|
||
use crate::email::address::*;
|
||
pub fn display_addr(input: &[u8]) -> IResult<&[u8], Address> {
|
||
if input.is_empty() || input.len() < 3 {
|
||
Err(nom::Err::Error((input, "display_addr(): EOF").into()))
|
||
} else if !is_whitespace!(input[0]) {
|
||
let mut display_name = StrBuilder {
|
||
offset: 0,
|
||
length: 0,
|
||
};
|
||
let mut flag = false;
|
||
for (i, b) in input[0..].iter().enumerate() {
|
||
if *b == b'<' {
|
||
display_name.length = i.saturating_sub(1); // if i != 0 { i - 1 } else { 0 };
|
||
flag = true;
|
||
break;
|
||
}
|
||
}
|
||
if !flag {
|
||
let (rest, output) = match super::encodings::phrase(input, false) {
|
||
Ok(v) => v,
|
||
_ => {
|
||
return Err(nom::Err::Error(
|
||
(input, "display_addr(): no '<' found").into(),
|
||
))
|
||
}
|
||
};
|
||
if output.contains(&b'<') {
|
||
let (_, address) = match display_addr(&output) {
|
||
Ok(v) => v,
|
||
_ => {
|
||
return Err(nom::Err::Error(
|
||
(input, "display_addr(): invalid input").into(),
|
||
))
|
||
}
|
||
};
|
||
return Ok((rest, address));
|
||
}
|
||
return Err(nom::Err::Error(
|
||
(input, "display_addr(): invalid input").into(),
|
||
));
|
||
}
|
||
let mut end = input.len();
|
||
let mut at_flag = false;
|
||
let mut flag = false;
|
||
for (i, b) in input[display_name.length + 2..].iter().enumerate() {
|
||
match *b {
|
||
b'@' => at_flag = true,
|
||
b'>' => {
|
||
end = i;
|
||
flag = true;
|
||
break;
|
||
}
|
||
_ => {}
|
||
}
|
||
}
|
||
if at_flag && flag {
|
||
let (_, raw) =
|
||
super::encodings::phrase(&input[0..end + display_name.length + 3], false)?;
|
||
let display_name_end = raw.find(b"<").unwrap();
|
||
display_name.length = raw[0..display_name_end].trim().len();
|
||
let address_spec = if display_name_end == 0 {
|
||
StrBuilder {
|
||
offset: 1,
|
||
length: end + 1,
|
||
}
|
||
} else {
|
||
StrBuilder {
|
||
offset: display_name_end + 1,
|
||
length: end,
|
||
}
|
||
};
|
||
|
||
if display_name.display(&raw).as_bytes().is_quoted() {
|
||
display_name.offset += 1;
|
||
display_name.length -= 2;
|
||
}
|
||
|
||
let rest_start = if input.len() > end + display_name.length + 2 {
|
||
end + display_name.length + 3
|
||
} else {
|
||
end + display_name.length + 2
|
||
};
|
||
|
||
Ok((
|
||
input.get(rest_start..).unwrap_or_default(),
|
||
Address::Mailbox(MailboxAddress {
|
||
raw,
|
||
display_name,
|
||
address_spec,
|
||
}),
|
||
))
|
||
} else {
|
||
Err(nom::Err::Error(
|
||
(input, "display_addr(): did not find both '@' and '>'").into(),
|
||
))
|
||
}
|
||
} else {
|
||
Err(nom::Err::Error(
|
||
(input, "display_addr(): unexpected whitespace").into(),
|
||
))
|
||
}
|
||
}
|
||
|
||
fn addr_spec(input: &[u8]) -> IResult<&[u8], Address> {
|
||
if input.is_empty() || input.len() < 3 {
|
||
Err(nom::Err::Error((input, "addr_spec(): found EOF").into()))
|
||
} else if !is_whitespace!(input[0]) {
|
||
let mut end = input[1..].len();
|
||
let mut flag = false;
|
||
for (i, b) in input[1..].iter().enumerate() {
|
||
if *b == b'@' {
|
||
flag = true;
|
||
}
|
||
if is_whitespace!(*b) {
|
||
end = i;
|
||
break;
|
||
}
|
||
}
|
||
if flag {
|
||
Ok((
|
||
&input[end..],
|
||
Address::Mailbox(MailboxAddress {
|
||
raw: input[0..=end].into(),
|
||
display_name: StrBuilder {
|
||
offset: 0,
|
||
length: 0,
|
||
},
|
||
address_spec: StrBuilder {
|
||
offset: 0,
|
||
length: input[0..=end].len(),
|
||
},
|
||
}),
|
||
))
|
||
} else {
|
||
Err(nom::Err::Error((input, "addr_spec(): expected '@'").into()))
|
||
}
|
||
} else {
|
||
Err(nom::Err::Error(
|
||
(input, "addr_spec(): unexpected whitespace").into(),
|
||
))
|
||
}
|
||
}
|
||
|
||
pub fn mailbox(input: &[u8]) -> IResult<&[u8], Address> {
|
||
alt((display_addr, addr_spec))(input)
|
||
//ws!(alt_complete!(display_addr | addr_spec))
|
||
}
|
||
|
||
pub fn mailbox_list(input: &[u8]) -> IResult<&[u8], Vec<Address>> {
|
||
many0(mailbox)(input)
|
||
// many0!(mailbox));
|
||
}
|
||
|
||
/*
|
||
* group of recipients eg. undisclosed-recipients;
|
||
*/
|
||
fn group(input: &[u8]) -> IResult<&[u8], Address> {
|
||
let mut flag = false;
|
||
let mut dlength = 0;
|
||
for (i, b) in input.iter().enumerate() {
|
||
if *b == b';' {
|
||
flag = true;
|
||
dlength = i;
|
||
break;
|
||
}
|
||
}
|
||
if !flag {
|
||
return Err(nom::Err::Error(
|
||
(input, "group(): expected to find ';'").into(),
|
||
));
|
||
}
|
||
|
||
let (rest, vec) = mailbox_list(&input[dlength..])?;
|
||
let size: usize =
|
||
(rest.as_ptr() as usize).wrapping_sub((&input[0..] as &[u8]).as_ptr() as usize);
|
||
Ok((
|
||
rest,
|
||
Address::Group(GroupAddress {
|
||
raw: input[0..size].into(),
|
||
display_name: StrBuilder {
|
||
offset: 0,
|
||
length: dlength,
|
||
},
|
||
mailbox_list: vec,
|
||
}),
|
||
))
|
||
}
|
||
|
||
pub fn address(input: &[u8]) -> IResult<&[u8], Address> {
|
||
alt((mailbox, group))(input.ltrim())
|
||
// ws!(alt_complete!(mailbox | group))
|
||
}
|
||
|
||
pub fn rfc2822address_list(input: &[u8]) -> IResult<&[u8], SmallVec<[Address; 1]>> {
|
||
separated_list_smallvec(is_a(","), address)(input.ltrim())
|
||
// ws!( separated_list!(is_a!(","), address))
|
||
}
|
||
|
||
pub fn address_list(input: &[u8]) -> IResult<&[u8], String> {
|
||
let (input, list) = alt((
|
||
super::encodings::encoded_word_list,
|
||
super::encodings::ascii_token,
|
||
))(input)?;
|
||
let list: Vec<&[u8]> = list.split(|c| *c == b',').collect();
|
||
let string_len = list.iter().fold(0, |mut acc, x| {
|
||
acc += x.trim().len();
|
||
acc
|
||
}) + list.len()
|
||
- 1;
|
||
let list_len = list.len();
|
||
let mut i = 0;
|
||
Ok((
|
||
input,
|
||
list.iter()
|
||
.fold(String::with_capacity(string_len), |acc, x| {
|
||
let mut acc = acc
|
||
+ &String::from_utf8_lossy(
|
||
x.replace(b"\n", b"")
|
||
.replace(b"\r", b"")
|
||
.replace(b"\t", b" ")
|
||
.trim(),
|
||
);
|
||
if i != list_len - 1 {
|
||
acc.push_str(" ");
|
||
i += 1;
|
||
}
|
||
acc
|
||
}),
|
||
))
|
||
}
|
||
|
||
pub fn message_id(input: &[u8]) -> IResult<&[u8], &[u8]> {
|
||
delimited(tag("<"), take_until(">"), tag(">"))(input.ltrim())
|
||
//complete!(delimited!(ws!(tag!("<")), take_until1!(">"), tag!(">")))
|
||
}
|
||
|
||
fn message_id_peek(input: &[u8]) -> IResult<&[u8], &[u8]> {
|
||
let input_length = input.len();
|
||
if input.is_empty() {
|
||
Err(nom::Err::Error(
|
||
(input, "message_id_peek(): found EOF").into(),
|
||
))
|
||
} else if input_length == 2 || input[0] != b'<' {
|
||
Err(nom::Err::Error(
|
||
(input, "message_id_peek(): expected '<'").into(),
|
||
))
|
||
} else {
|
||
for (i, &x) in input.iter().take(input_length).enumerate().skip(1) {
|
||
if x == b'>' {
|
||
return Ok((&input[i + 1..], &input[0..=i]));
|
||
}
|
||
}
|
||
Err(nom::Err::Error(
|
||
(input, "message_id_peek(): expected closing '>'").into(),
|
||
))
|
||
}
|
||
}
|
||
|
||
pub fn references(input: &[u8]) -> IResult<&[u8], Vec<&[u8]>> {
|
||
separated_list(is_a(" \n\t\r"), message_id_peek)(input)
|
||
// separated_list!(complete!(is_a!(" \n\t\r")), message_id_peek));
|
||
}
|
||
|
||
use smallvec::SmallVec;
|
||
pub fn separated_list_smallvec<I, O, Sep, E, F, G>(
|
||
sep: G,
|
||
f: F,
|
||
) -> impl FnMut(I) -> IResult<I, SmallVec<[O; 1]>, E>
|
||
where
|
||
I: Clone + PartialEq,
|
||
F: Fn(I) -> IResult<I, O, E>,
|
||
G: Fn(I) -> IResult<I, Sep, E>,
|
||
E: nom::error::ParseError<I>,
|
||
{
|
||
move |i: I| {
|
||
let mut res = SmallVec::new();
|
||
let mut i = i;
|
||
|
||
// Parse the first element
|
||
match f(i.clone()) {
|
||
Err(e) => return Err(e),
|
||
Ok((i1, o)) => {
|
||
if i1 == i {
|
||
return Err(nom::Err::Error(E::from_error_kind(
|
||
i1,
|
||
ErrorKind::SeparatedList,
|
||
)));
|
||
}
|
||
|
||
res.push(o);
|
||
i = i1;
|
||
}
|
||
}
|
||
|
||
loop {
|
||
match sep(i.clone()) {
|
||
Err(nom::Err::Error(_)) => return Ok((i, res)),
|
||
Err(e) => return Err(e),
|
||
Ok((i1, _)) => {
|
||
if i1 == i {
|
||
return Err(nom::Err::Error(E::from_error_kind(
|
||
i1,
|
||
ErrorKind::SeparatedList,
|
||
)));
|
||
}
|
||
|
||
match f(i1.clone()) {
|
||
Err(nom::Err::Error(_)) => return Ok((i, res)),
|
||
Err(e) => return Err(e),
|
||
Ok((i2, o)) => {
|
||
if i2 == i {
|
||
return Err(nom::Err::Error(E::from_error_kind(
|
||
i2,
|
||
ErrorKind::SeparatedList,
|
||
)));
|
||
}
|
||
|
||
res.push(o);
|
||
i = i2;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod tests {
|
||
use super::{address::*, encodings::*, generic::*, *};
|
||
use crate::email::address::*;
|
||
use crate::make_address;
|
||
|
||
#[test]
|
||
fn test_phrase() {
|
||
let words = b"=?iso-8859-7?B?W215Y291cnNlcy5udHVhLmdyIC0gyvXs4fTp6t4g6uHpIMri4e306ere?=
|
||
=?iso-8859-7?B?INb18+nq3l0gzd3hIMHt4erv3+358+c6IMzF0c/TIMHQz9TFy8XTzMHU?=
|
||
=?iso-8859-7?B?2c0gwiDUzC4gysHNLiDFzsXUwdPH0yAyMDE3LTE4OiDTx8zFydnTxw==?=";
|
||
assert_eq!("[mycourses.ntua.gr - Κυματική και Κβαντική Φυσική] Νέα Ανακοίνωση: ΜΕΡΟΣ ΑΠΟΤΕΛΕΣΜΑΤΩΝ Β ΤΜ. ΚΑΝ. ΕΞΕΤΑΣΗΣ 2017-18: ΣΗΜΕΙΩΣΗ" , std::str::from_utf8(&phrase(words.trim(), false).unwrap().1).unwrap());
|
||
let words = b"=?UTF-8?Q?=CE=A0=CF=81=CF=8C=CF=83=CE=B8=CE=B5?= =?UTF-8?Q?=CF=84=CE=B7_=CE=B5=CE=BE=CE=B5=CF=84?= =?UTF-8?Q?=CE=B1=CF=83=CF=84=CE=B9=CE=BA=CE=AE?=";
|
||
assert_eq!(
|
||
"Πρόσθετη εξεταστική",
|
||
std::str::from_utf8(&phrase(words.trim(), false).unwrap().1).unwrap()
|
||
);
|
||
let words = b"[Advcomparch] =?utf-8?b?zqPPhc68z4DOtc+BzrnPhs6/z4HOrCDPg861IGZs?=\n\t=?utf-8?b?dXNoIM67z4zOs8+JIG1pc3ByZWRpY3Rpb24gzrrOsc+Ezqwgz4TOt869?=\n\t=?utf-8?b?IM61zrrPhM6tzrvOtc+Dzrcgc3RvcmU=?=";
|
||
assert_eq!(
|
||
"[Advcomparch] Συμπεριφορά σε flush λόγω misprediction κατά την εκτέλεση store",
|
||
std::str::from_utf8(&phrase(words.trim(), false).unwrap().1).unwrap()
|
||
);
|
||
let words = b"Re: [Advcomparch] =?utf-8?b?zqPPhc68z4DOtc+BzrnPhs6/z4HOrCDPg861IGZs?=
|
||
=?utf-8?b?dXNoIM67z4zOs8+JIG1pc3ByZWRpY3Rpb24gzrrOsc+Ezqwgz4TOt869?=
|
||
=?utf-8?b?IM61zrrPhM6tzrvOtc+Dzrcgc3RvcmU=?=";
|
||
assert_eq!(
|
||
"Re: [Advcomparch] Συμπεριφορά σε flush λόγω misprediction κατά την εκτέλεση store",
|
||
std::str::from_utf8(&phrase(words.trim(), false).unwrap().1).unwrap()
|
||
);
|
||
let words = b"sdf";
|
||
assert_eq!(
|
||
"sdf",
|
||
std::str::from_utf8(&phrase(words, false).unwrap().1).unwrap()
|
||
);
|
||
let words = b"=?iso-8859-7?b?U2VnIGZhdWx0IPP05+0g5er03evl8+cg9O/1?= =?iso-8859-7?q?_example_ru_n_=5Fsniper?=";
|
||
assert_eq!(
|
||
"Seg fault στην εκτέλεση του example ru n _sniper",
|
||
std::str::from_utf8(&phrase(words, false).unwrap().1).unwrap()
|
||
);
|
||
let words = b"Re: [Advcomparch]
|
||
=?iso-8859-7?b?U2VnIGZhdWx0IPP05+0g5er03evl8+cg9O/1?=
|
||
=?iso-8859-7?q?_example_ru_n_=5Fsniper?=";
|
||
|
||
assert_eq!(
|
||
"Re: [Advcomparch] Seg fault στην εκτέλεση του example ru n _sniper",
|
||
std::str::from_utf8(&phrase(words, false).unwrap().1).unwrap()
|
||
);
|
||
|
||
let words = r#"[internal] =?UTF-8?B?zp3Orc6/z4Igzp/OtM63zrPPjM+CIM6jz4XOs86zz4E=?=
|
||
=?UTF-8?B?zrHPhs6uz4I=?="#;
|
||
assert_eq!(
|
||
"[internal] Νέος Οδηγός Συγγραφής",
|
||
std::str::from_utf8(&phrase(words.as_bytes(), false).unwrap().1).unwrap()
|
||
);
|
||
|
||
let words = r#"=?UTF-8?Q?Re=3a_Climate_crisis_reality_check_=e2=80=93=c2=a0EcoHust?=
|
||
=?UTF-8?Q?ler?="#;
|
||
assert_eq!(
|
||
"Re: Climate crisis reality check –\u{a0}EcoHustler",
|
||
std::str::from_utf8(&phrase(words.as_bytes(), false).unwrap().1).unwrap()
|
||
);
|
||
|
||
let words = r#"Re: Climate crisis reality check =?windows-1250?B?lqBFY29IdXN0?=
|
||
=?windows-1250?B?bGVy?="#;
|
||
assert_eq!(
|
||
"Re: Climate crisis reality check –\u{a0}EcoHustler",
|
||
std::str::from_utf8(&phrase(words.as_bytes(), false).unwrap().1).unwrap()
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_address_list() {
|
||
let s = b"Obit Oppidum <user@domain>,
|
||
list <list@domain.tld>, list2 <list2@domain.tld>,
|
||
Bobit Boppidum <user@otherdomain.com>, Cobit Coppidum <user2@otherdomain.com>, <user@domain.tld>";
|
||
assert_eq!(
|
||
(
|
||
&s[0..0],
|
||
smallvec::smallvec![
|
||
make_address!("Obit Oppidum", "user@domain"),
|
||
make_address!("list", "list@domain.tld"),
|
||
make_address!("list2", "list2@domain.tld"),
|
||
make_address!("Bobit Boppidum", "user@otherdomain.com"),
|
||
make_address!("Cobit Coppidum", "user2@otherdomain.com"),
|
||
make_address!("", "user@domain.tld")
|
||
]
|
||
),
|
||
rfc2822address_list(s).unwrap()
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_date() {
|
||
let s = b"Thu, 31 Aug 2017 13:43:37 +0000 (UTC)";
|
||
let _s = b"Thu, 31 Aug 2017 13:43:37 +0000";
|
||
let __s = b"=?utf-8?q?Thu=2C_31_Aug_2017_13=3A43=3A37_-0000?=";
|
||
debug!("{:?}, {:?}", date(s), date(_s));
|
||
debug!("{:?}", date(__s));
|
||
assert_eq!(date(s).unwrap(), date(_s).unwrap());
|
||
assert_eq!(date(_s).unwrap(), date(__s).unwrap());
|
||
let val = b"Fri, 23 Dec 0001 21:20:36 -0800 (PST)";
|
||
assert_eq!(date(val).unwrap(), 0);
|
||
}
|
||
|
||
#[test]
|
||
fn test_attachments() {
|
||
//FIXME: add file
|
||
return;
|
||
/*
|
||
use std::io::Read;
|
||
let mut buffer: Vec<u8> = Vec::new();
|
||
let _ = std::fs::File::open("").unwrap().read_to_end(&mut buffer);
|
||
let boundary = b"b1_4382d284f0c601a737bb32aaeda53160";
|
||
let (_, body) = match mail(&buffer) {
|
||
Ok(v) => v,
|
||
Err(_) => panic!(),
|
||
};
|
||
let attachments = parts(body, boundary).unwrap().1;
|
||
assert_eq!(attachments.len(), 4);
|
||
let v: Vec<&str> = attachments
|
||
.iter()
|
||
.map(|v| std::str::from_utf8(v).unwrap())
|
||
.collect();
|
||
println!("attachments {:?}", v);
|
||
*/
|
||
}
|
||
#[test]
|
||
fn test_addresses() {
|
||
{
|
||
let s = b"=?iso-8859-7?B?0/Th/fHv8iDM4ev03ebv8g==?= <maltezos@central.ntua.gr>";
|
||
let r = mailbox(s).unwrap().1;
|
||
match r {
|
||
Address::Mailbox(ref m) => assert!(
|
||
"Σταύρος Μαλτέζος"
|
||
== std::str::from_utf8(&m.display_name.display_bytes(&m.raw)).unwrap()
|
||
&& std::str::from_utf8(&m.address_spec.display_bytes(&m.raw)).unwrap()
|
||
== "maltezos@central.ntua.gr"
|
||
),
|
||
_ => assert!(false),
|
||
}
|
||
}
|
||
{
|
||
let s = b"user@domain";
|
||
let r = mailbox(s).unwrap().1;
|
||
match r {
|
||
Address::Mailbox(ref m) => assert!(
|
||
m.display_name.display_bytes(&m.raw) == b""
|
||
&& m.address_spec.display_bytes(&m.raw) == b"user@domain"
|
||
),
|
||
_ => assert!(false),
|
||
}
|
||
}
|
||
{
|
||
let s = b"Name <user@domain>";
|
||
let r = display_addr(s).unwrap().1;
|
||
match r {
|
||
Address::Mailbox(ref m) => assert!(
|
||
b"Name" == m.display_name.display_bytes(&m.raw)
|
||
&& b"user@domain" == m.address_spec.display_bytes(&m.raw)
|
||
),
|
||
_ => {}
|
||
}
|
||
}
|
||
{
|
||
let s = b"user@domain";
|
||
let r = mailbox(s).unwrap().1;
|
||
match r {
|
||
Address::Mailbox(ref m) => assert!(
|
||
b"" == m.display_name.display_bytes(&m.raw)
|
||
&& b"user@domain" == m.address_spec.display_bytes(&m.raw)
|
||
),
|
||
_ => {}
|
||
}
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_quoted_printable() {
|
||
let input = r#"<=21-- SEPARATOR -->
|
||
<tr>
|
||
<td style=3D=22padding-left: 10px;padding-right: 10px;background-color:=
|
||
=23f3f5fa;=22>
|
||
<table width=3D=22100%=22 cellspacing=3D=220=22 cellpadding=3D=220=22 =
|
||
border=3D=220=22>
|
||
<tr>
|
||
<td style=3D=22height:5px;background-color: =23f3f5fa;=22> </td>
|
||
</tr>
|
||
</table>
|
||
</td>
|
||
</tr>"#;
|
||
assert_eq!(
|
||
quoted_printable_bytes(input.as_bytes())
|
||
.as_ref()
|
||
.map(|(_, b)| unsafe { std::str::from_utf8_unchecked(b) }),
|
||
Ok(r#"<!-- SEPARATOR -->
|
||
<tr>
|
||
<td style="padding-left: 10px;padding-right: 10px;background-color: #f3f5fa;">
|
||
<table width="100%" cellspacing="0" cellpadding="0" border="0">
|
||
<tr>
|
||
<td style="height:5px;background-color: #f3f5fa;"> </td>
|
||
</tr>
|
||
</table>
|
||
</td>
|
||
</tr>"#)
|
||
);
|
||
}
|
||
}
|