use mail_parser::HeaderName;
use crate::compiler::{
grammar::{
actions::action_mime::MimeOpts,
instruction::{CompilerState, MapLocalVars},
Capability, Comparator,
},
lexer::{word::Word, Token},
CompileError, ErrorType, Value,
};
use crate::compiler::grammar::{test::Test, MatchType};
#[derive(Debug, Clone, PartialEq, Eq)]
#[cfg_attr(
any(test, feature = "serde"),
derive(serde::Serialize, serde::Deserialize)
)]
#[cfg_attr(
feature = "rkyv",
derive(rkyv::Serialize, rkyv::Deserialize, rkyv::Archive)
)]
pub(crate) struct TestHeader {
pub header_list: Vec<Value>,
pub key_list: Vec<Value>,
pub match_type: MatchType,
pub comparator: Comparator,
pub index: Option<i32>,
pub mime_opts: MimeOpts<Value>,
pub mime_anychild: bool,
pub is_not: bool,
}
impl CompilerState<'_> {
pub(crate) fn parse_test_header(&mut self) -> Result<Test, CompileError> {
let mut match_type = MatchType::Is;
let mut comparator = Comparator::AsciiCaseMap;
let mut header_list = None;
let mut key_list;
let mut index = None;
let mut index_last = false;
let mut mime = false;
let mut mime_opts = MimeOpts::None;
let mut mime_anychild = false;
loop {
let token_info = self.tokens.unwrap_next()?;
match token_info.token {
Token::Tag(
word @ (Word::Is
| Word::Contains
| Word::Matches
| Word::Value
| Word::Count
| Word::Regex
| Word::List),
) => {
self.validate_argument(
1,
match word {
Word::Value | Word::Count => Capability::Relational.into(),
Word::Regex => Capability::Regex.into(),
Word::List => Capability::ExtLists.into(),
_ => None,
},
token_info.line_num,
token_info.line_pos,
)?;
match_type = self.parse_match_type(word)?;
}
Token::Tag(Word::Comparator) => {
self.validate_argument(2, None, token_info.line_num, token_info.line_pos)?;
comparator = self.parse_comparator()?;
}
Token::Tag(Word::Index) => {
self.validate_argument(
3,
Capability::Index.into(),
token_info.line_num,
token_info.line_pos,
)?;
index = (self.tokens.expect_number(u16::MAX as usize)? as i32).into();
}
Token::Tag(Word::Last) => {
self.validate_argument(
4,
Capability::Index.into(),
token_info.line_num,
token_info.line_pos,
)?;
index_last = true;
}
Token::Tag(Word::Mime) => {
self.validate_argument(
5,
Capability::Mime.into(),
token_info.line_num,
token_info.line_pos,
)?;
mime = true;
}
Token::Tag(Word::AnyChild) => {
self.validate_argument(
6,
Capability::Mime.into(),
token_info.line_num,
token_info.line_pos,
)?;
mime_anychild = true;
}
Token::Tag(
word @ (Word::Type | Word::Subtype | Word::ContentType | Word::Param),
) => {
self.validate_argument(
7,
Capability::Mime.into(),
token_info.line_num,
token_info.line_pos,
)?;
mime_opts = self.parse_mimeopts(word)?;
}
_ => {
if header_list.is_none() {
let headers = self.parse_strings_token(token_info)?;
for header in &headers {
if let Value::Text(header_name) = &header {
if HeaderName::parse(header_name.as_ref()).is_none() {
return Err(self
.tokens
.unwrap_next()?
.custom(ErrorType::InvalidHeaderName));
}
}
}
header_list = headers.into();
} else {
key_list = self.parse_strings_token(token_info)?;
break;
}
}
}
}
if !mime && (mime_anychild || mime_opts != MimeOpts::None) {
return Err(self.tokens.unwrap_next()?.missing_tag(":mime"));
}
self.validate_match(&match_type, &mut key_list)?;
Ok(Test::Header(TestHeader {
header_list: header_list.unwrap(),
key_list,
match_type,
comparator,
index: if index_last { index.map(|i| -i) } else { index },
mime_opts,
mime_anychild,
is_not: false,
}))
}
}
impl MapLocalVars for MimeOpts<Value> {
fn map_local_vars(&mut self, last_id: usize) {
if let MimeOpts::Param(value) = self {
value.map_local_vars(last_id)
}
}
}