Revision control
Copy as Markdown
Other Tools
/*
* Copyright Stalwart Labs Ltd. See the COPYING
* file at the top-level directory of this distribution.
*
* Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
* option. This file may not be copied, modified, or distributed
* except according to those terms.
*/
use std::borrow::Cow;
use crate::parsers::MessageStream;
#[inline(always)]
pub fn base64_decode(bytes: &[u8]) -> Option<Vec<u8>> {
base64_decode_stream(bytes.iter(), bytes.len(), u8::MAX)
}
pub fn base64_decode_stream<'x>(
stream: impl Iterator<Item = &'x u8>,
stream_len: usize,
stop_char: u8,
) -> Option<Vec<u8>> {
let mut chunk: u32 = 0;
let mut byte_count: u8 = 0;
let mut buf = Vec::with_capacity(stream_len / 4 * 3);
for &ch in stream {
#[cfg(feature = "ludicrous_mode")]
let val = unsafe {
*BASE64_MAP
.get_unchecked(byte_count as usize)
.get_unchecked(ch as usize)
};
#[cfg(not(feature = "ludicrous_mode"))]
let val = BASE64_MAP[byte_count as usize][ch as usize];
if val < 0x01ffffff {
byte_count = (byte_count + 1) & 3;
if byte_count == 1 {
chunk = val;
} else {
chunk |= val;
if byte_count == 0 {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.extend_from_slice(chunk.to_le_bytes().get_unchecked(0..3));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.extend_from_slice(&chunk.to_le_bytes()[0..3]);
}
}
} else {
match ch {
b'=' => match byte_count {
1 | 2 => {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.push(*chunk.to_le_bytes().get_unchecked(0));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.push(chunk.to_le_bytes()[0]);
byte_count = 0;
}
3 => {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.extend_from_slice(chunk.to_le_bytes().get_unchecked(0..2));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.extend_from_slice(&chunk.to_le_bytes()[0..2]);
byte_count = 0;
}
0 => (),
_ => {
return None;
}
},
b' ' | b'\t' | b'\r' | b'\n' => (),
_ => return if ch == stop_char { buf.into() } else { None },
}
}
}
buf.into()
}
impl<'x> MessageStream<'x> {
pub fn decode_base64_mime(&mut self, boundary: &[u8]) -> (usize, Cow<'x, [u8]>) {
let mut chunk: u32 = 0;
let mut byte_count: u8 = 0;
let mut buf = Vec::with_capacity(self.remaining() / 4 * 3);
let mut last_ch = b'\n';
let mut before_last_ch = 0;
let mut end_pos = self.offset();
self.checkpoint();
while let Some(&ch) = self.next() {
#[cfg(feature = "ludicrous_mode")]
let val = unsafe {
*BASE64_MAP
.get_unchecked(byte_count as usize)
.get_unchecked(ch as usize)
};
#[cfg(not(feature = "ludicrous_mode"))]
let val = BASE64_MAP[byte_count as usize][ch as usize];
if val < 0x01ffffff {
byte_count = (byte_count + 1) & 3;
if byte_count == 1 {
chunk = val;
} else {
chunk |= val;
if byte_count == 0 {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.extend_from_slice(chunk.to_le_bytes().get_unchecked(0..3));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.extend_from_slice(&chunk.to_le_bytes()[0..3]);
}
}
} else {
match ch {
b'=' => match byte_count {
1 | 2 => {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.push(*chunk.to_le_bytes().get_unchecked(0));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.push(chunk.to_le_bytes()[0]);
byte_count = 0;
}
3 => {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.extend_from_slice(chunk.to_le_bytes().get_unchecked(0..2));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.extend_from_slice(&chunk.to_le_bytes()[0..2]);
byte_count = 0;
}
0 => (),
_ => {
self.restore();
return (usize::MAX, b""[..].into());
}
},
b'\n' => {
end_pos = if last_ch == b'\r' {
self.offset() - 2
} else {
self.offset() - 1
}
}
b' ' | b'\t' | b'\r' => (),
b'-' => {
if last_ch == b'-' {
return if !boundary.is_empty() && self.try_skip(boundary) {
buf.shrink_to_fit();
(
if before_last_ch == b'\n' {
end_pos
} else {
self.offset() - boundary.len() - 2
},
buf.into(),
)
} else {
self.restore();
(usize::MAX, b""[..].into())
};
}
}
_ => {
self.restore();
return (usize::MAX, b""[..].into());
}
}
}
before_last_ch = last_ch;
last_ch = ch;
}
buf.shrink_to_fit();
(
if boundary.is_empty() {
self.offset()
} else {
self.restore();
usize::MAX
},
buf.into(),
)
}
pub fn decode_base64_word(&mut self) -> Option<Vec<u8>> {
let mut chunk: u32 = 0;
let mut byte_count: u8 = 0;
let mut buf = Vec::with_capacity(64);
while let Some(&ch) = self.next() {
match ch {
b'=' => {
match byte_count {
1 | 2 => {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.push(*chunk.to_le_bytes().get_unchecked(0));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.push(chunk.to_le_bytes()[0]);
byte_count = 0;
}
3 => {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.extend_from_slice(chunk.to_le_bytes().get_unchecked(0..2));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.extend_from_slice(&chunk.to_le_bytes()[0..2]);
byte_count = 0;
}
0 => (),
_ => {
// Invalid
break;
}
}
}
b'?' => {
if let Some(b'=') = self.next() {
return Some(buf);
} else {
break;
}
}
b'\n' => {
if !self.next_is_space() {
break;
}
}
b' ' | b'\t' | b'\r' => (),
_ => {
#[cfg(feature = "ludicrous_mode")]
let val = unsafe {
*BASE64_MAP
.get_unchecked(byte_count as usize)
.get_unchecked(ch as usize)
};
#[cfg(not(feature = "ludicrous_mode"))]
let val = BASE64_MAP[byte_count as usize][ch as usize];
if val < 0x01ffffff {
byte_count = (byte_count + 1) & 3;
if byte_count == 1 {
chunk = val;
} else {
chunk |= val;
if byte_count == 0 {
#[cfg(feature = "ludicrous_mode")]
unsafe {
buf.extend_from_slice(chunk.to_le_bytes().get_unchecked(0..3));
}
#[cfg(not(feature = "ludicrous_mode"))]
buf.extend_from_slice(&chunk.to_le_bytes()[0..3]);
}
}
} else {
break;
}
}
}
}
None
}
}
/*
* Table adapted from Nick Galbreath's "High performance base64 encoder / decoder"
*
* Copyright 2005, 2006, 2007 Nick Galbreath -- nickg [at] modp [dot] com
* All rights reserved.
*
*
* Released under bsd license.
*
*/
pub static BASE64_MAP: &[&[u32]] = &[
&[
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x000000f8, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x000000fc, 0x000000d0,
0x000000d4, 0x000000d8, 0x000000dc, 0x000000e0, 0x000000e4, 0x000000e8, 0x000000ec,
0x000000f0, 0x000000f4, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x00000000, 0x00000004, 0x00000008, 0x0000000c, 0x00000010,
0x00000014, 0x00000018, 0x0000001c, 0x00000020, 0x00000024, 0x00000028, 0x0000002c,
0x00000030, 0x00000034, 0x00000038, 0x0000003c, 0x00000040, 0x00000044, 0x00000048,
0x0000004c, 0x00000050, 0x00000054, 0x00000058, 0x0000005c, 0x00000060, 0x00000064,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x00000068,
0x0000006c, 0x00000070, 0x00000074, 0x00000078, 0x0000007c, 0x00000080, 0x00000084,
0x00000088, 0x0000008c, 0x00000090, 0x00000094, 0x00000098, 0x0000009c, 0x000000a0,
0x000000a4, 0x000000a8, 0x000000ac, 0x000000b0, 0x000000b4, 0x000000b8, 0x000000bc,
0x000000c0, 0x000000c4, 0x000000c8, 0x000000cc, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
],
&[
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x0000e003, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x0000f003, 0x00004003,
0x00005003, 0x00006003, 0x00007003, 0x00008003, 0x00009003, 0x0000a003, 0x0000b003,
0x0000c003, 0x0000d003, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x00000000, 0x00001000, 0x00002000, 0x00003000, 0x00004000,
0x00005000, 0x00006000, 0x00007000, 0x00008000, 0x00009000, 0x0000a000, 0x0000b000,
0x0000c000, 0x0000d000, 0x0000e000, 0x0000f000, 0x00000001, 0x00001001, 0x00002001,
0x00003001, 0x00004001, 0x00005001, 0x00006001, 0x00007001, 0x00008001, 0x00009001,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x0000a001,
0x0000b001, 0x0000c001, 0x0000d001, 0x0000e001, 0x0000f001, 0x00000002, 0x00001002,
0x00002002, 0x00003002, 0x00004002, 0x00005002, 0x00006002, 0x00007002, 0x00008002,
0x00009002, 0x0000a002, 0x0000b002, 0x0000c002, 0x0000d002, 0x0000e002, 0x0000f002,
0x00000003, 0x00001003, 0x00002003, 0x00003003, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
],
&[
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x00800f00, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x00c00f00, 0x00000d00,
0x00400d00, 0x00800d00, 0x00c00d00, 0x00000e00, 0x00400e00, 0x00800e00, 0x00c00e00,
0x00000f00, 0x00400f00, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x00000000, 0x00400000, 0x00800000, 0x00c00000, 0x00000100,
0x00400100, 0x00800100, 0x00c00100, 0x00000200, 0x00400200, 0x00800200, 0x00c00200,
0x00000300, 0x00400300, 0x00800300, 0x00c00300, 0x00000400, 0x00400400, 0x00800400,
0x00c00400, 0x00000500, 0x00400500, 0x00800500, 0x00c00500, 0x00000600, 0x00400600,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x00800600,
0x00c00600, 0x00000700, 0x00400700, 0x00800700, 0x00c00700, 0x00000800, 0x00400800,
0x00800800, 0x00c00800, 0x00000900, 0x00400900, 0x00800900, 0x00c00900, 0x00000a00,
0x00400a00, 0x00800a00, 0x00c00a00, 0x00000b00, 0x00400b00, 0x00800b00, 0x00c00b00,
0x00000c00, 0x00400c00, 0x00800c00, 0x00c00c00, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
],
&[
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x003e0000, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x003f0000, 0x00340000,
0x00350000, 0x00360000, 0x00370000, 0x00380000, 0x00390000, 0x003a0000, 0x003b0000,
0x003c0000, 0x003d0000, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x00000000, 0x00010000, 0x00020000, 0x00030000, 0x00040000,
0x00050000, 0x00060000, 0x00070000, 0x00080000, 0x00090000, 0x000a0000, 0x000b0000,
0x000c0000, 0x000d0000, 0x000e0000, 0x000f0000, 0x00100000, 0x00110000, 0x00120000,
0x00130000, 0x00140000, 0x00150000, 0x00160000, 0x00170000, 0x00180000, 0x00190000,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x001a0000,
0x001b0000, 0x001c0000, 0x001d0000, 0x001e0000, 0x001f0000, 0x00200000, 0x00210000,
0x00220000, 0x00230000, 0x00240000, 0x00250000, 0x00260000, 0x00270000, 0x00280000,
0x00290000, 0x002a0000, 0x002b0000, 0x002c0000, 0x002d0000, 0x002e0000, 0x002f0000,
0x00300000, 0x00310000, 0x00320000, 0x00330000, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
0x01ffffff, 0x01ffffff, 0x01ffffff, 0x01ffffff,
],
];
#[cfg(test)]
mod tests {
use crate::parsers::MessageStream;
#[test]
fn decode_base64() {
for (encoded_str, expected_result) in [
("VGVzdA==", "Test"),
("WWU=", "Ye"),
("QQ==", "A"),
("cm8=", "ro"),
(
"QXJlIHlvdSBhIFNoaW1hbm8gb3IgQ2FtcGFnbm9sbyBwZXJzb24/",
"Are you a Shimano or Campagnolo person?",
),
(
"PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8Ym9keT4KPC9ib2R5Pgo8L2h0bWw+Cg==",
"<!DOCTYPE html>\n<html>\n<body>\n</body>\n</html>\n",
),
(
"PCFET0NUWVBFIGh0bWw+CjxodG1sPg\no8Ym9ke\nT4KPC 9ib2R5Pg\n o8L2h0bWw+Cg==",
"<!DOCTYPE html>\n<html>\n<body>\n</body>\n</html>\n",
),
("w6HDqcOtw7PDug==", "áéíóú"),
("====", ""),
("w6HDq!cOtw7PDug=", ""),
("w6 HD qcOt", "áéí"),
("cmáé", ""),
("áé", ""),
("w\n6\nH\nD\nq\nc\nO\nt\nw\n7\n P\tD u g\n==", "áéíóú"),
("w6HDqcOtw7PDug==", "áéíóú"),
] {
assert_eq!(
super::base64_decode(encoded_str.as_bytes()).unwrap_or_default(),
expected_result.as_bytes(),
"Failed for {encoded_str:?}",
);
}
}
#[test]
fn decode_base64_mime() {
for (encoded_str, expected_result) in [
("VGVzdA==\r\n--boundary\n", "Test"),
(
"PCFET0NUWVBFIGh0bWw+CjxodG1sPg\no8Ym9ke\nT4KPC 9ib2R5Pg\n o8L2h0bWw+Cg==\r\n--boundary--\r\n",
"<!DOCTYPE html>\n<html>\n<body>\n</body>\n</html>\n",
),
("w6HDqcOtw7PDug==\r\n--boundary \n", "áéíóú"),
("w\n6\nH\nD\nq\nc\nO\nt\nw\n7\n P\tD u g\n==\r\n--boundary\n", "áéíóú"),
("w6HDqcOtw7PDug==--boundary", "áéíóú"),
(
"w6HDqcOtw7PDug==\n--boundary--",
"áéíóú",
),
(
"w\n6\nH\nD\nq\nc\nO\nt\nw\n7\n P\tD u g\n==\n--boundary",
"áéíóú",
),
] {
let mut s = MessageStream::new(encoded_str.as_bytes());
let (_, result) = s.decode_base64_mime(b"boundary");
assert_eq!(
result,
expected_result.as_bytes(),
"Failed for {encoded_str:?}",
);
}
}
#[test]
fn decode_base64_word() {
for (encoded_str, expected_result) in [
("w 6 H D q c O t w 7 P D u g== ?=", "áéíóú"),
("w6HDqcOtw7PDug==?=", "áéíóú"),
("w6HDqc\n Otw7PDug==?=", "áéíóú"),
("w6HDqcOtw7PDug================?=", "áéíóú"),
("?=", ""),
] {
let mut s = MessageStream::new(encoded_str.as_bytes());
assert_eq!(
s.decode_base64_word().unwrap(),
expected_result.as_bytes(),
"Failed for {encoded_str:?}",
);
}
}
}