Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "websurfx"
-version = "1.10.9"
+version = "1.9.20"
 edition = "2021"
 description = "An open-source alternative to Searx that provides clean, ad-free, and organic results with incredible speed while keeping privacy and security in mind."
 repository = "https://github.com/neon-mmd/websurfx"
@@ -14,7 +14,7 @@ path = "src/bin/websurfx.rs"
 
 [dependencies]
 reqwest = {version="0.11.24", default-features=false, features=["rustls-tls","brotli", "gzip"]}
-tokio = {version="1.32.0",features=["rt-multi-thread","macros", "fs", "io-util"], default-features = false}
+tokio = {version="1.32.0",features=["rt-multi-thread","macros"], default-features = false}
 serde = {version="1.0.196", default-features=false, features=["derive"]}
 serde_json = {version="1.0.109", default-features=false}
 maud = {version="0.25.0", default-features=false, features=["actix-web"]}
@@ -38,7 +38,7 @@ mimalloc = { version = "0.1.38", default-features = false }
 async-once-cell = {version="0.5.3", default-features=false}
 actix-governor = {version="0.5.0", default-features=false}
 mini-moka = { version="0.10", optional = true, default-features=false, features=["sync"]}
-async-compression = { version = "0.4.6", default-features = false, features=["brotli","tokio"], optional=true}
+brotli = { version = "3.4.0", default-features = false, features=["std"], optional=true}
 chacha20poly1305={version="0.10.1", default-features=false, features=["alloc","getrandom"], optional=true}
 chacha20 = {version="0.9.1", default-features=false, optional=true}
 base64 = {version="0.21.5", default-features=false, features=["std"], optional=true}
@@ -84,7 +84,7 @@ default = ["memory-cache"]
 dhat-heap = ["dep:dhat"] 
 memory-cache = ["dep:mini-moka"]
 redis-cache = ["dep:redis","dep:base64"]
-compress-cache-results = ["dep:async-compression","dep:cfg-if"]
+compress-cache-results = ["dep:brotli","dep:cfg-if"]
 encrypt-cache-results = ["dep:chacha20poly1305","dep:chacha20"]
 cec-cache-results = ["compress-cache-results","encrypt-cache-results"]
 

src/cache/cacher.rs

@@ -93,7 +93,7 @@ pub trait Cacher: Send + Sync {
         feature = "encrypt-cache-results",
         feature = "cec-cache-results"
     ))]
-    async fn encrypt_or_decrypt_results(
+    fn encrypt_or_decrypt_results(
         &mut self,
         mut bytes: Vec<u8>,
         encrypt: bool,
@@ -137,19 +137,11 @@ pub trait Cacher: Send + Sync {
     /// Returns the compressed bytes on success otherwise it returns a CacheError
     /// on failure.
     #[cfg(any(feature = "compress-cache-results", feature = "cec-cache-results"))]
-    async fn compress_results(
+    fn compress_results(&mut self, mut bytes: Vec<u8>) -> Result<Vec<u8>, Report<CacheError>> {
-        &mut self,
+        use std::io::Write;
-        mut bytes: Vec<u8>,
+        let mut writer = brotli::CompressorWriter::new(Vec::new(), 4096, 11, 22);
-    ) -> Result<Vec<u8>, Report<CacheError>> {
-        use tokio::io::AsyncWriteExt;
-        let mut writer = async_compression::tokio::write::BrotliEncoder::new(Vec::new());
         writer
             .write_all(&bytes)
-            .await
-            .map_err(|_| CacheError::CompressionError)?;
-        writer
-            .shutdown()
-            .await
             .map_err(|_| CacheError::CompressionError)?;
         bytes = writer.into_inner();
         Ok(bytes)
@@ -167,17 +159,17 @@ pub trait Cacher: Send + Sync {
     /// Returns the compressed and encrypted bytes on success otherwise it returns a CacheError
     /// on failure.
     #[cfg(feature = "cec-cache-results")]
-    async fn compress_encrypt_compress_results(
+    fn compress_encrypt_compress_results(
         &mut self,
         mut bytes: Vec<u8>,
     ) -> Result<Vec<u8>, Report<CacheError>> {
         // compress first
-        bytes = self.compress_results(bytes).await?;
+        bytes = self.compress_results(bytes)?;
         // encrypt
-        bytes = self.encrypt_or_decrypt_results(bytes, true).await?;
+        bytes = self.encrypt_or_decrypt_results(bytes, true)?;
 
         // compress again;
-        bytes = self.compress_results(bytes).await?;
+        bytes = self.compress_results(bytes)?;
 
         Ok(bytes)
     }
@@ -195,11 +187,11 @@ pub trait Cacher: Send + Sync {
     /// on failure.
 
     #[cfg(any(feature = "compress-cache-results", feature = "cec-cache-results"))]
-    async fn decompress_results(&mut self, bytes: &[u8]) -> Result<Vec<u8>, Report<CacheError>> {
+    fn decompress_results(&mut self, bytes: &[u8]) -> Result<Vec<u8>, Report<CacheError>> {
         cfg_if::cfg_if! {
              if #[cfg(feature = "compress-cache-results")]
             {
-               decompress_util(bytes).await
+               decompress_util(bytes)
 
             }
             else if  #[cfg(feature = "cec-cache-results")]
@@ -207,7 +199,7 @@ pub trait Cacher: Send + Sync {
                 let decompressed = decompress_util(bytes)?;
                 let decrypted = self.encrypt_or_decrypt_results(decompressed, false)?;
 
-                decompress_util(&decrypted).await
+                decompress_util(&decrypted)
 
             }
         }
@@ -224,7 +216,7 @@ pub trait Cacher: Send + Sync {
     /// # Error
     /// Returns a Vec of compressed or encrypted bytes on success otherwise it returns a CacheError
     /// on failure.
-    async fn pre_process_search_results(
+    fn pre_process_search_results(
         &mut self,
         search_results: &SearchResults,
     ) -> Result<Vec<u8>, Report<CacheError>> {
@@ -232,20 +224,19 @@ pub trait Cacher: Send + Sync {
         let mut bytes: Vec<u8> = search_results.try_into()?;
         #[cfg(feature = "compress-cache-results")]
         {
-            let compressed = self.compress_results(bytes).await?;
+            let compressed = self.compress_results(bytes)?;
             bytes = compressed;
         }
 
         #[cfg(feature = "encrypt-cache-results")]
         {
-            let encrypted = self.encrypt_or_decrypt_results(bytes, true).await?;
+            let encrypted = self.encrypt_or_decrypt_results(bytes, true)?;
             bytes = encrypted;
         }
 
         #[cfg(feature = "cec-cache-results")]
         {
-            let compressed_encrypted_compressed =
+            let compressed_encrypted_compressed = self.compress_encrypt_compress_results(bytes)?;
-                self.compress_encrypt_compress_results(bytes).await?;
             bytes = compressed_encrypted_compressed;
         }
 
@@ -265,25 +256,25 @@ pub trait Cacher: Send + Sync {
     /// on failure.
 
     #[allow(unused_mut)] // needs to be mutable when any of the features is enabled
-    async fn post_process_search_results(
+    fn post_process_search_results(
         &mut self,
         mut bytes: Vec<u8>,
     ) -> Result<SearchResults, Report<CacheError>> {
         #[cfg(feature = "compress-cache-results")]
         {
-            let decompressed = self.decompress_results(&bytes).await?;
+            let decompressed = self.decompress_results(&bytes)?;
             bytes = decompressed
         }
 
         #[cfg(feature = "encrypt-cache-results")]
         {
-            let decrypted = self.encrypt_or_decrypt_results(bytes, false).await?;
+            let decrypted = self.encrypt_or_decrypt_results(bytes, false)?;
             bytes = decrypted
         }
 
         #[cfg(feature = "cec-cache-results")]
         {
-            let decompressed_decrypted = self.decompress_results(&bytes).await?;
+            let decompressed_decrypted = self.decompress_results(&bytes)?;
             bytes = decompressed_decrypted;
         }
 
@@ -304,19 +295,16 @@ pub trait Cacher: Send + Sync {
 /// on failure.
 
 #[cfg(any(feature = "compress-cache-results", feature = "cec-cache-results"))]
-async fn decompress_util(input: &[u8]) -> Result<Vec<u8>, Report<CacheError>> {
+fn decompress_util(input: &[u8]) -> Result<Vec<u8>, Report<CacheError>> {
-    use tokio::io::AsyncWriteExt;
+    use std::io::Write;
-    let mut writer = async_compression::tokio::write::BrotliDecoder::new(Vec::new());
+    let mut writer = brotli::DecompressorWriter::new(Vec::new(), 4096);
 
     writer
         .write_all(input)
-        .await
         .map_err(|_| CacheError::CompressionError)?;
-    writer
+    let bytes = writer
-        .shutdown()
+        .into_inner()
-        .await
         .map_err(|_| CacheError::CompressionError)?;
-    let bytes = writer.into_inner();
     Ok(bytes)
 }
 
@@ -341,7 +329,7 @@ impl Cacher for RedisCache {
         let bytes = base64::engine::general_purpose::STANDARD_NO_PAD
             .decode(base64_string)
             .map_err(|_| CacheError::Base64DecodingOrEncodingError)?;
-        self.post_process_search_results(bytes).await
+        self.post_process_search_results(bytes)
     }
 
     async fn cache_results(
@@ -357,7 +345,7 @@ impl Cacher for RedisCache {
         let mut bytes = Vec::with_capacity(search_results_len);
 
         for result in search_results {
-            let processed = self.pre_process_search_results(result).await?;
+            let processed = self.pre_process_search_results(result)?;
             bytes.push(processed);
         }
 
@@ -417,7 +405,7 @@ impl Cacher for InMemoryCache {
     async fn cached_results(&mut self, url: &str) -> Result<SearchResults, Report<CacheError>> {
         let hashed_url_string = self.hash_url(url);
         match self.cache.get(&hashed_url_string) {
-            Some(res) => self.post_process_search_results(res).await,
+            Some(res) => self.post_process_search_results(res),
             None => Err(Report::new(CacheError::MissingValue)),
         }
     }
@@ -429,7 +417,7 @@ impl Cacher for InMemoryCache {
     ) -> Result<(), Report<CacheError>> {
         for (url, search_result) in urls.iter().zip(search_results.iter()) {
             let hashed_url_string = self.hash_url(url);
-            let bytes = self.pre_process_search_results(search_result).await?;
+            let bytes = self.pre_process_search_results(search_result)?;
             self.cache.insert(hashed_url_string, bytes);
         }
 

src/results/aggregator.rs

@@ -14,12 +14,12 @@ use regex::Regex;
 use reqwest::{Client, ClientBuilder};
 use std::sync::Arc;
 use std::time::{SystemTime, UNIX_EPOCH};
-use tokio::{
+use std::{fs::File, io::BufRead};
-    fs::File,
+use std::{
-    io::{AsyncBufReadExt, BufReader},
+    io::{BufReader, Read},
-    task::JoinHandle,
     time::Duration,
 };
+use tokio::task::JoinHandle;
 
 /// A constant for holding the prebuilt Client globally in the app.
 static CLIENT: std::sync::OnceLock<Client> = std::sync::OnceLock::new();
@@ -169,15 +169,13 @@ pub async fn aggregate(
             &mut result_map,
             &mut blacklist_map,
             file_path(FileType::BlockList)?,
-        )
+        )?;
-        .await?;
 
         filter_with_lists(
             &mut blacklist_map,
             &mut result_map,
             file_path(FileType::AllowList)?,
-        )
+        )?;
-        .await?;
 
         drop(blacklist_map);
     }
@@ -198,16 +196,15 @@ pub async fn aggregate(
 /// # Errors
 ///
 /// Returns an error if the file at `file_path` cannot be opened or read, or if a regex pattern is invalid.
-pub async fn filter_with_lists(
+pub fn filter_with_lists(
     map_to_be_filtered: &mut Vec<(String, SearchResult)>,
     resultant_map: &mut Vec<(String, SearchResult)>,
     file_path: &str,
 ) -> Result<(), Box<dyn std::error::Error>> {
-    let reader = BufReader::new(File::open(file_path).await?);
+    let mut reader = BufReader::new(File::open(file_path)?);
-    let mut lines = reader.lines();
 
-    while let Some(line) = lines.next_line().await? {
+    for line in reader.by_ref().lines() {
-        let re = Regex::new(line.trim())?;
+        let re = Regex::new(line?.trim())?;
 
         let mut length = map_to_be_filtered.len();
         let mut idx: usize = Default::default();
@@ -239,8 +236,8 @@ mod tests {
     use std::io::Write;
     use tempfile::NamedTempFile;
 
-    #[tokio::test]
+    #[test]
-    async fn test_filter_with_lists() -> Result<(), Box<dyn std::error::Error>> {
+    fn test_filter_with_lists() -> Result<(), Box<dyn std::error::Error>> {
         // Create a map of search results to filter
         let mut map_to_be_filtered = Vec::new();
         map_to_be_filtered.push((
@@ -274,8 +271,7 @@ mod tests {
             &mut map_to_be_filtered,
             &mut resultant_map,
             file.path().to_str().unwrap(),
-        )
+        )?;
-        .await?;
 
         assert_eq!(resultant_map.len(), 2);
         assert!(resultant_map
@@ -289,8 +285,8 @@ mod tests {
         Ok(())
     }
 
-    #[tokio::test]
+    #[test]
-    async fn test_filter_with_lists_wildcard() -> Result<(), Box<dyn std::error::Error>> {
+    fn test_filter_with_lists_wildcard() -> Result<(), Box<dyn std::error::Error>> {
         let mut map_to_be_filtered = Vec::new();
         map_to_be_filtered.push((
             "https://www.example.com".to_owned(),
@@ -323,8 +319,7 @@ mod tests {
             &mut map_to_be_filtered,
             &mut resultant_map,
             file.path().to_str().unwrap(),
-        )
+        )?;
-        .await?;
 
         assert_eq!(resultant_map.len(), 1);
         assert!(resultant_map
@@ -338,8 +333,8 @@ mod tests {
         Ok(())
     }
 
-    #[tokio::test]
+    #[test]
-    async fn test_filter_with_lists_file_not_found() {
+    fn test_filter_with_lists_file_not_found() {
         let mut map_to_be_filtered = Vec::new();
 
         let mut resultant_map = Vec::new();
@@ -351,11 +346,11 @@ mod tests {
             "non-existent-file.txt",
         );
 
-        assert!(result.await.is_err());
+        assert!(result.is_err());
     }
 
-    #[tokio::test]
+    #[test]
-    async fn test_filter_with_lists_invalid_regex() {
+    fn test_filter_with_lists_invalid_regex() {
         let mut map_to_be_filtered = Vec::new();
         map_to_be_filtered.push((
             "https://www.example.com".to_owned(),
@@ -381,6 +376,6 @@ mod tests {
             file.path().to_str().unwrap(),
         );
 
-        assert!(result.await.is_err());
+        assert!(result.is_err());
     }
 }

src/server/router.rs

@@ -7,7 +7,7 @@ use crate::{
     handler::{file_path, FileType},
 };
 use actix_web::{get, http::header::ContentType, web, HttpRequest, HttpResponse};
-use tokio::fs::read_to_string;
+use std::fs::read_to_string;
 
 /// Handles the route of index page or main page of the `websurfx` meta search engine website.
 #[get("/")]
@@ -43,7 +43,7 @@ pub async fn not_found(
 #[get("/robots.txt")]
 pub async fn robots_data(_req: HttpRequest) -> Result<HttpResponse, Box<dyn std::error::Error>> {
     let page_content: String =
-        read_to_string(format!("{}/robots.txt", file_path(FileType::Theme)?)).await?;
+        read_to_string(format!("{}/robots.txt", file_path(FileType::Theme)?))?;
     Ok(HttpResponse::Ok()
         .content_type(ContentType::plaintext())
         .body(page_content))

src/server/routes/search.rs

@@ -13,12 +13,12 @@ use crate::{
 };
 use actix_web::{get, http::header::ContentType, web, HttpRequest, HttpResponse};
 use regex::Regex;
-use std::borrow::Cow;
+use std::{
-use tokio::{
+    borrow::Cow,
     fs::File,
-    io::{AsyncBufReadExt, BufReader},
+    io::{BufRead, BufReader, Read},
-    join,
 };
+use tokio::join;
 
 /// Handles the route of search page of the `websurfx` meta search engine website and it takes
 /// two search url parameters `q` and `page` where `page` parameter is optional.
@@ -188,7 +188,7 @@ async fn results(
                 let mut results: SearchResults = SearchResults::default();
 
                 let flag: bool =
-                    !is_match_from_filter_list(file_path(FileType::BlockList)?, query).await?;
+                    !is_match_from_filter_list(file_path(FileType::BlockList)?, query)?;
                 // Return early when query contains disallowed words,
                 if flag {
                     results.set_disallowed();
@@ -252,14 +252,13 @@ async fn results(
 ///
 /// Returns a bool indicating whether the results were found in the list or not on success
 /// otherwise returns a standard error type on a failure.
-async fn is_match_from_filter_list(
+fn is_match_from_filter_list(
     file_path: &str,
     query: &str,
 ) -> Result<bool, Box<dyn std::error::Error>> {
-    let reader = BufReader::new(File::open(file_path).await?);
+    let mut reader = BufReader::new(File::open(file_path)?);
-    let mut lines = reader.lines();
+    for line in reader.by_ref().lines() {
-    while let Some(line) = lines.next_line().await? {
+        let re = Regex::new(&line?)?;
-        let re = Regex::new(&line)?;
         if re.is_match(query) {
             return Ok(true);
         }