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binary detection and utf16

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This commit is contained in:
phiresky 2023-02-21 11:43:17 +01:00
parent 9d9b34f9cc
commit b8cca54770
9 changed files with 111 additions and 53 deletions
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9
src/adapters.rs
View File

@ -9,6 +9,7 @@ pub mod writing;
pub mod zip;
use crate::{adapted_iter::AdaptedFilesIterBox, config::RgaConfig, matching::*};
use anyhow::{format_err, Context, Result};
use async_trait::async_trait;
use custom::CustomAdapterConfig;
use custom::BUILTIN_SPAWNING_ADAPTERS;
use log::*;
@ -76,11 +77,17 @@ impl AdapterMeta {
pub trait GetMetadata {
fn metadata(&self) -> &AdapterMeta;
}
#[async_trait]
pub trait FileAdapter: GetMetadata + Send + Sync {
/// adapt a file.
///
/// detection_reason is the Matcher that was used to identify this file. Unless --rga-accurate was given, it is always a FastMatcher
fn adapt(&self, a: AdaptInfo, detection_reason: &FileMatcher) -> Result<AdaptedFilesIterBox>;
async fn adapt(
&self,
a: AdaptInfo,
detection_reason: &FileMatcher,
) -> Result<AdaptedFilesIterBox>;
}
pub struct AdaptInfo {

7
src/adapters/custom.rs
View File

@ -224,8 +224,9 @@ impl CustomSpawningFileAdapter {
Ok(command)
}
}
#[async_trait]
impl FileAdapter for CustomSpawningFileAdapter {
fn adapt<'a>(
async fn adapt(
&self,
ai: AdaptInfo,
_detection_reason: &FileMatcher,
@ -314,7 +315,7 @@ mod test {
let (a, d) = simple_adapt_info(&filepath, Box::pin(File::open(&filepath).await?));
// let r = adapter.adapt(a, &d)?;
let r = loop_adapt(&adapter, d, a)?;
let r = loop_adapt(&adapter, d, a).await?;
let o = adapted_to_vec(r).await?;
assert_eq!(
String::from_utf8(o)?,
@ -368,7 +369,7 @@ PREFIX:Page 1:
Path::new("foo.txt"),
Box::pin(Cursor::new(Vec::from(input))),
);
let output = adapter.adapt(a, &d).unwrap();
let output = adapter.adapt(a, &d).await.unwrap();
let oup = adapted_to_vec(output).await?;
println!("output: {}", String::from_utf8_lossy(&oup));

11
src/adapters/decompress.rs
View File

@ -93,8 +93,13 @@ fn get_inner_filename(filename: &Path) -> PathBuf {
filename.with_file_name(format!("{}{}", stem, new_extension))
}
#[async_trait]
impl FileAdapter for DecompressAdapter {
fn adapt(&self, ai: AdaptInfo, detection_reason: &FileMatcher) -> Result<AdaptedFilesIterBox> {
async fn adapt(
&self,
ai: AdaptInfo,
detection_reason: &FileMatcher,
) -> Result<AdaptedFilesIterBox> {
Ok(one_file(AdaptInfo {
filepath_hint: get_inner_filename(&ai.filepath_hint),
is_real_file: false,
@ -137,7 +142,7 @@ mod tests {
let filepath = test_data_dir().join("hello.gz");
let (a, d) = simple_adapt_info(&filepath, Box::pin(File::open(&filepath).await?));
let r = adapter.adapt(a, &d)?;
let r = adapter.adapt(a, &d).await?;
let o = adapted_to_vec(r).await?;
assert_eq!(String::from_utf8(o)?, "hello\n");
Ok(())
@ -150,7 +155,7 @@ mod tests {
let filepath = test_data_dir().join("short.pdf.gz");
let (a, d) = simple_adapt_info(&filepath, Box::pin(File::open(&filepath).await?));
let r = loop_adapt(&adapter, d, a)?;
let r = loop_adapt(&adapter, d, a).await?;
let o = adapted_to_vec(r).await?;
assert_eq!(
String::from_utf8(o)?,

57
src/adapters/postproc.rs
View File

@ -4,6 +4,7 @@
use anyhow::Result;
use async_stream::stream;
use async_trait::async_trait;
use bytes::Bytes;
use encoding_rs::Encoding;
use encoding_rs_io::DecodeReaderBytesBuilder;
@ -44,8 +45,9 @@ impl GetMetadata for PostprocPrefix {
&METADATA
}
}
#[async_trait]
impl FileAdapter for PostprocPrefix {
fn adapt<'a>(
async fn adapt(
&self,
a: super::AdaptInfo,
_detection_reason: &crate::matching::FileMatcher,
@ -87,18 +89,12 @@ async fn postproc_encoding(
let mut beginning = inp.take(1 << 13);
beginning.read_to_end(&mut fourk).await?;
let has_binary = fourk.contains(&0u8);
if fourk.contains(&0u8) {
log::debug!("detected binary");
let v = "[rga: binary data]";
return Ok(Box::pin(std::io::Cursor::new(v)));
}
let enc = Encoding::for_bom(&fourk);
let inp = std::io::Cursor::new(fourk).chain(beginning.into_inner());
let inp = Cursor::new(fourk).chain(beginning.into_inner());
match enc {
None => Ok(Box::pin(inp)),
Some((enc, _)) if enc == encoding_rs::UTF_8 => Ok(Box::pin(inp)),
Some(_) => {
Some((enc, _)) if enc != encoding_rs::UTF_8 => {
// detected UTF16LE or UTF16BE, convert to UTF8 in separate thread
// TODO: parse these options from ripgrep's configuration
let encoding = None; // detect bom but usually assume utf8
@ -120,7 +116,14 @@ async fn postproc_encoding(
Ok(oup)
})
.await??;
Ok(Box::pin(std::io::Cursor::new(oup)))
Ok(Box::pin(Cursor::new(oup)))
}
_ => {
if has_binary {
log::debug!("detected binary");
return Ok(Box::pin(Cursor::new("[rga: binary data]")));
}
Ok(Box::pin(inp))
}
}
}
@ -169,13 +172,14 @@ impl GetMetadata for PostprocPageBreaks {
&METADATA
}
}
#[async_trait]
impl FileAdapter for PostprocPageBreaks {
fn adapt<'a>(
async fn adapt(
&self,
a: super::AdaptInfo,
_detection_reason: &crate::matching::FileMatcher,
) -> Result<AdaptedFilesIterBox> {
let read = postproc_pagebreaks(postproc_encoding(&a.line_prefix, a.inp)?);
let read = postproc_pagebreaks(postproc_encoding(&a.line_prefix, a.inp).await?);
// keep adapt info (filename etc) except replace inp
let ai = AdaptInfo {
inp: Box::pin(read),
@ -287,7 +291,7 @@ mod tests {
let fname = test_data_dir().join("twoblankpages.pdf");
let rd = File::open(&fname).await?;
let (a, d) = simple_adapt_info(&fname, Box::pin(rd));
let res = loop_adapt(&adapter, d, a)?;
let res = loop_adapt(&adapter, d, a).await?;
let buf = adapted_to_vec(res).await?;
@ -332,7 +336,8 @@ PREFIX:Page 3:
b: &str,
) -> Result<()> {
let mut oup = Vec::new();
let inp = postproc_encoding("", a)?;
let inp = Box::pin(Cursor::new(a));
let inp = postproc_encoding("", inp).await?;
if pagebreaks {
postproc_pagebreaks(inp).read_to_end(&mut oup).await?;
} else {
@ -346,6 +351,23 @@ PREFIX:Page 3:
Ok(())
}
#[tokio::test]
async fn test_utf16() -> Result<()> {
let utf16lebom: &[u8] = &[
0xff, 0xfe, 0x68, 0x00, 0x65, 0x00, 0x6c, 0x00, 0x6c, 0x00, 0x6f, 0x00, 0x20, 0x00,
0x77, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x6c, 0x00, 0x64, 0x00, 0x20, 0x00, 0x3d, 0xd8,
0xa9, 0xdc, 0x0a, 0x00,
];
let utf16bebom: &[u8] = &[
0xfe, 0xff, 0x00, 0x68, 0x00, 0x65, 0x00, 0x6c, 0x00, 0x6c, 0x00, 0x6f, 0x00, 0x20,
0x00, 0x77, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x6c, 0x00, 0x64, 0x00, 0x20, 0xd8, 0x3d,
0xdc, 0xa9, 0x00, 0x0a,
];
test_from_bytes(false, "", utf16lebom, "hello world 💩\n").await?;
test_from_bytes(false, "", utf16bebom, "hello world 💩\n").await?;
Ok(())
}
#[tokio::test]
async fn post1() -> Result<()> {
let inp = "What is this\nThis is a test\nFoo";
@ -367,8 +389,7 @@ PREFIX:Page 3:
Ok(())
}
/*
todo: uncomment when fixed
#[tokio::test]
async fn test_binary_content() -> Result<()> {
test_from_strs(
@ -380,7 +401,7 @@ PREFIX:Page 3:
.await?;
test_from_strs(false, "foo:", "\0", "foo:[rga: binary data]").await?;
Ok(())
}*/
}
/*#[test]
fn chardet() -> Result<()> {

2
src/adapters/sqlite.rs
View File

@ -137,7 +137,7 @@ mod test {
let adapter: Box<dyn FileAdapter> = Box::new(SqliteAdapter::default());
let fname = test_data_dir().join("hello.sqlite3");
let (a, d) = simple_fs_adapt_info(&fname).await?;
let res = adapter.adapt(a, &d)?;
let res = adapter.adapt(a, &d).await?;
let buf = adapted_to_vec(res).await?;

10
src/adapters/tar.rs
View File

@ -6,6 +6,7 @@ use crate::{
};
use anyhow::*;
use async_stream::stream;
use async_trait::async_trait;
use lazy_static::lazy_static;
use log::*;
use std::path::PathBuf;
@ -45,8 +46,13 @@ impl GetMetadata for TarAdapter {
}
}
#[async_trait]
impl FileAdapter for TarAdapter {
fn adapt(&self, ai: AdaptInfo, _detection_reason: &FileMatcher) -> Result<AdaptedFilesIterBox> {
async fn adapt(
&self,
ai: AdaptInfo,
_detection_reason: &FileMatcher,
) -> Result<AdaptedFilesIterBox> {
let AdaptInfo {
filepath_hint,
inp,
@ -103,7 +109,7 @@ mod tests {
let (a, d) = simple_adapt_info(&filepath, Box::pin(File::open(&filepath).await?));
let adapter = TarAdapter::new();
let r = loop_adapt(&adapter, d, a).context("adapt")?;
let r = loop_adapt(&adapter, d, a).await.context("adapt")?;
let o = adapted_to_vec(r).await.context("adapted_to_vec")?;
assert_eq!(
String::from_utf8(o).context("parsing utf8")?,

3
src/adapters/writing.rs
View File

@ -41,11 +41,12 @@ macro_rules! async_writeln {
}
pub(crate) use async_writeln;
#[async_trait]
impl<T> FileAdapter for T
where
T: WritingFileAdapter,
{
fn adapt(
async fn adapt(
&self,
a: super::AdaptInfo,
detection_reason: &crate::matching::FileMatcher,

14
src/adapters/zip.rs
View File

@ -36,8 +36,13 @@ impl GetMetadata for ZipAdapter {
}
}
#[async_trait]
impl FileAdapter for ZipAdapter {
fn adapt(&self, ai: AdaptInfo, _detection_reason: &FileMatcher) -> Result<AdaptedFilesIterBox> {
async fn adapt(
&self,
ai: AdaptInfo,
_detection_reason: &FileMatcher,
) -> Result<AdaptedFilesIterBox> {
// let (s, r) = mpsc::channel(1);
let AdaptInfo {
inp,
@ -52,8 +57,8 @@ impl FileAdapter for ZipAdapter {
if is_real_file {
use async_zip::read::fs::ZipFileReader;
let s = stream! {
let zip = ZipFileReader::new(&filepath_hint).await?;
let s = stream! {
for i in 0..zip.entries().len() {
let reader = zip.entry_reader(i).await?;
let file = reader.entry();
@ -183,7 +188,6 @@ impl<'a> AdaptedFilesIter for ZipAdaptIter<'a> {
mod test {
use async_zip::{write::ZipFileWriter, Compression, ZipEntryBuilder};
use super::*;
use crate::{preproc::loop_adapt, test_utils::*};
use pretty_assertions::assert_eq;
@ -213,7 +217,7 @@ mod test {
async fn only_seek_zip_fs() -> Result<()> {
let zip = test_data_dir().join("only-seek-zip.zip");
let (a, d) = simple_fs_adapt_info(&zip).await?;
let _v = adapted_to_vec(loop_adapt(&ZipAdapter::new(), d, a)?).await?;
let _v = adapted_to_vec(loop_adapt(&ZipAdapter::new(), d, a).await?).await?;
// assert_eq!(String::from_utf8(v)?, "");
Ok(())
@ -236,7 +240,7 @@ mod test {
&PathBuf::from("outer.zip"),
Box::pin(std::io::Cursor::new(zipfile)),
);
let buf = adapted_to_vec(loop_adapt(&adapter, d, a)?).await?;
let buf = adapted_to_vec(loop_adapt(&adapter, d, a).await?).await?;
assert_eq!(
String::from_utf8(buf)?,

19
src/preproc.rs
View File

@ -11,11 +11,14 @@ use crate::{
use anyhow::*;
use async_compression::tokio::bufread::ZstdDecoder;
use async_stream::stream;
// use futures::future::{BoxFuture, FutureExt};
use log::*;
use path_clean::PathClean;
use postproc::PostprocPrefix;
use std::future::Future;
use std::io::Cursor;
use std::path::Path;
use std::pin::Pin;
use std::sync::Arc;
use tokio::io::AsyncBufRead;
use tokio::io::AsyncBufReadExt;
@ -185,7 +188,7 @@ async fn adapt_caching(
Some(cached) => Ok(Box::pin(ZstdDecoder::new(Cursor::new(cached)))),
None => {
debug!("cache MISS, running adapter with caching...");
let inp = loop_adapt(adapter.as_ref(), detection_reason, ai)?;
let inp = loop_adapt(adapter.as_ref(), detection_reason, ai).await?;
let inp = concat_read_streams(inp);
let inp = async_read_and_write_to_cache(
inp,
@ -213,9 +216,19 @@ pub fn loop_adapt(
adapter: &dyn FileAdapter,
detection_reason: FileMatcher,
ai: AdaptInfo,
) -> Pin<Box<dyn Future<Output = anyhow::Result<AdaptedFilesIterBox>> + Send + '_>> {
Box::pin(async move { loop_adapt_inner(adapter, detection_reason, ai).await })
}
pub async fn loop_adapt_inner(
adapter: &dyn FileAdapter,
detection_reason: FileMatcher,
ai: AdaptInfo,
) -> anyhow::Result<AdaptedFilesIterBox> {
let fph = ai.filepath_hint.clone();
let inp = adapter.adapt(ai, &detection_reason).with_context(|| {
let inp = adapter
.adapt(ai, &detection_reason)
.await
.with_context(|| {
format!(
"adapting {} via {} failed",
fph.to_string_lossy(),
@ -243,7 +256,7 @@ pub fn loop_adapt(
ai.filepath_hint.to_string_lossy(),
&adapter.metadata().name
);
for await ifile in loop_adapt(adapter.as_ref(), detection_reason, ai)? {
for await ifile in loop_adapt(adapter.as_ref(), detection_reason, ai).await? {
yield ifile;
}
}