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refactor one occassion of determinig transfer encoding

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This commit is contained in:
holger krekel
2019-09-29 13:55:06 +02:00
parent a6a6fc48c1
commit 064337b5d3
1 changed files with 8 additions and 13 deletions
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21
src/dc_mimeparser.rs
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@@ -5,6 +5,7 @@ use std::ptr;
use charset::Charset;
use deltachat_derive::{FromSql, ToSql};
use libc::{strcmp, strlen, strncmp};
use mmime::display::display_mime;
use mmime::mailimf::types::*;
use mmime::mailimf::*;
use mmime::mailmime::content::*;
@@ -1159,20 +1160,9 @@ pub unsafe fn mailmime_transfer_decode(mime: *mut Mailmime) -> Result<Vec<u8>, E
let mut mime_transfer_encoding = MAILMIME_MECHANISM_BINARY as libc::c_int;
let mime_transfer_encoding = wrapmime::get_mime_transfer_encoding(mmime)
.unwrap_or(MAILMIME_MECHANISM_BINARY);
let mime_data = (*mime).mm_data.mm_single;
if !(*mime).mm_mime_fields.is_null() {
for cur in (*(*(*mime).mm_mime_fields).fld_list).into_iter() {
let field = cur as *mut mailmime_field;
if !field.is_null()
&& (*field).fld_type == MAILMIME_FIELD_TRANSFER_ENCODING as libc::c_int
&& !(*field).fld_data.fld_encoding.is_null()
{
mime_transfer_encoding = (*(*field).fld_data.fld_encoding).enc_type;
break;
}
}
}
if mime_transfer_encoding == MAILMIME_MECHANISM_7BIT as libc::c_int
|| mime_transfer_encoding == MAILMIME_MECHANISM_8BIT as libc::c_int
@@ -1188,6 +1178,7 @@ pub unsafe fn mailmime_transfer_decode(mime: *mut Mailmime) -> Result<Vec<u8>, E
return Ok(result.to_vec());
}
}
display_mime(mime);
let mut current_index = 0;
let mut transfer_decoding_buffer = ptr::null_mut();
@@ -1209,12 +1200,16 @@ pub unsafe fn mailmime_transfer_decode(mime: *mut Mailmime) -> Result<Vec<u8>, E
let result =
std::slice::from_raw_parts(transfer_decoding_buffer as *const u8, decoded_data_bytes)
.to_vec();
// we return a fresh vec and transfer_decoding_buffer is not used or passed anywhere
// so it's safe to free it right away, as mailman_part_parse has
// allocated it fresh.
mmap_string_unref(transfer_decoding_buffer);
return Ok(result);
}
Err(format_err!("Failed to to decode"))
}
pub fn mailimf_get_recipients(imffields: *mut mailimf_fields) -> HashSet<String> {