fix(compress): downgrade non-compressible log level and expand excluded file types (#1780)

crates/ecstore/src/compress.rs

@@ -14,38 +14,93 @@
 
 use rustfs_utils::string::{has_pattern, has_string_suffix_in_slice};
 use std::env;
-use tracing::error;
+use std::sync::OnceLock;
+use tracing::debug;
 
 pub const MIN_COMPRESSIBLE_SIZE: usize = 4096;
 
 // Environment variable name to control whether compression is enabled
 pub const ENV_COMPRESSION_ENABLED: &str = "RUSTFS_COMPRESSION_ENABLED";
 
+// Environment variable for additional extensions to exclude from compression (comma-separated, e.g. ".foo,.bar")
+pub const ENV_ADDED_EXCLUDE_COMPRESS_EXTENSIONS: &str = "RUSTFS_ADDED_EXCLUDE_COMPRESS_EXTENSIONS";
+
+/// Parses RUSTFS_COMPRESSION_ENABLED. Called once at first use via OnceLock.
+fn parse_compression_enabled() -> bool {
+    env::var(ENV_COMPRESSION_ENABLED)
+        .map(|s| s.to_lowercase() == "true")
+        .unwrap_or(false)
+}
+
+/// Parses RUSTFS_ADDED_EXCLUDE_COMPRESS_EXTENSIONS (comma-separated). Called once at first use via OnceLock.
+pub(crate) fn parse_added_exclude_extensions() -> Vec<String> {
+    env::var(ENV_ADDED_EXCLUDE_COMPRESS_EXTENSIONS)
+        .ok()
+        .map(|s| {
+            s.split(',')
+                .map(|v| {
+                    let v = v.trim().to_lowercase();
+                    if v.is_empty() {
+                        String::new()
+                    } else if v.starts_with('.') {
+                        v
+                    } else {
+                        format!(".{v}")
+                    }
+                })
+                .filter(|v| !v.is_empty())
+                .collect()
+        })
+        .unwrap_or_default()
+}
+
+// Parsed once at first use, then reused for all is_compressible() checks.
+static COMPRESSION_ENABLED: OnceLock<bool> = OnceLock::new();
+static ADDED_EXCLUDE_COMPRESS_EXTENSIONS: OnceLock<Vec<String>> = OnceLock::new();
+
 // Some standard object extensions which we strictly dis-allow for compression.
+#[rustfmt::skip]
 pub const STANDARD_EXCLUDE_COMPRESS_EXTENSIONS: &[&str] = &[
-    ".gz", ".bz2", ".rar", ".zip", ".7z", ".xz", ".mp4", ".mkv", ".mov", ".jpg", ".png", ".gif",
+    // Compressed archives
+    ".gz", ".bz2", ".rar", ".zip", ".7z", ".xz", ".zst", ".lz4", ".br", ".lzo", ".sz", ".tgz",
+    // Images
+    ".jpg", ".jpeg", ".png", ".gif", ".webp", ".avif", ".heic", ".heif", ".jxl",
+    // Video
+    ".mp4", ".mkv", ".mov", ".avi", ".wmv", ".flv", ".webm", ".m4v", ".mpeg", ".mpg",
+    // Audio
+    ".mp3", ".aac", ".ogg", ".flac", ".wma", ".m4a", ".opus",
+    // Documents (internally compressed)
+    ".pdf", ".docx", ".xlsx", ".pptx",
+    // Package formats
+    ".deb", ".rpm", ".jar", ".war", ".apk",
+    // Web fonts
+    ".woff", ".woff2",
 ];
 
 // Some standard content-types which we strictly dis-allow for compression.
 pub const STANDARD_EXCLUDE_COMPRESS_CONTENT_TYPES: &[&str] = &[
     "video/*",
     "audio/*",
+    "image/*",
     "application/zip",
     "application/x-gzip",
     "application/x-zip-compressed",
     "application/x-compress",
     "application/x-spoon",
+    "application/x-rar-compressed",
+    "application/x-7z-compressed",
+    "application/x-bzip2",
+    "application/x-xz",
+    "application/zstd",
+    "application/pdf",
+    "application/wasm",
+    "font/*",
 ];
 
 pub fn is_compressible(headers: &http::HeaderMap, object_name: &str) -> bool {
-    // Check if compression is enabled via environment variable, default disabled
-    if let Ok(compression_enabled) = env::var(ENV_COMPRESSION_ENABLED) {
-        if compression_enabled.to_lowercase() != "true" {
-            error!("Compression is disabled by environment variable");
-            return false;
-        }
-    } else {
-        // Default disabled when environment variable is not set
+    // Check if compression is enabled (read once at first use, then fixed for process lifetime)
+    if !*COMPRESSION_ENABLED.get_or_init(parse_compression_enabled) {
+        debug!("Compression is disabled by environment variable");
         return false;
     }
 
@@ -54,12 +109,18 @@ pub fn is_compressible(headers: &http::HeaderMap, object_name: &str) -> bool {
     // TODO: crypto request return false
 
     if has_string_suffix_in_slice(object_name, STANDARD_EXCLUDE_COMPRESS_EXTENSIONS) {
-        error!("object_name: {} is not compressible", object_name);
+        debug!("object_name: {} is not compressible", object_name);
+        return false;
+    }
+
+    let added = ADDED_EXCLUDE_COMPRESS_EXTENSIONS.get_or_init(parse_added_exclude_extensions);
+    if !added.is_empty() && has_string_suffix_in_slice(object_name, added) {
+        debug!("object_name: {} is not compressible (added exclusion)", object_name);
         return false;
     }
 
     if !content_type.is_empty() && has_pattern(STANDARD_EXCLUDE_COMPRESS_CONTENT_TYPES, content_type) {
-        error!("content_type: {} is not compressible", content_type);
+        debug!("content_type: {} is not compressible", content_type);
         return false;
     }
     true
@@ -72,33 +133,78 @@ mod tests {
     use super::*;
     use temp_env;
 
+    #[test]
+    fn test_parse_compression_enabled() {
+        temp_env::with_var(ENV_COMPRESSION_ENABLED, Some("true"), || {
+            assert!(parse_compression_enabled());
+        });
+        temp_env::with_var(ENV_COMPRESSION_ENABLED, Some("false"), || {
+            assert!(!parse_compression_enabled());
+        });
+        temp_env::with_var(ENV_COMPRESSION_ENABLED, Some("FALSE"), || {
+            assert!(!parse_compression_enabled());
+        });
+        temp_env::with_var_unset(ENV_COMPRESSION_ENABLED, || {
+            assert!(!parse_compression_enabled());
+        });
+    }
+
     #[test]
     fn test_is_compressible() {
         use http::HeaderMap;
 
         let headers = HeaderMap::new();
 
-        // Test environment variable control
-        temp_env::with_var(ENV_COMPRESSION_ENABLED, Some("false"), || {
-            assert!(!is_compressible(&headers, "file.txt"));
-        });
-
+        // COMPRESSION_ENABLED is cached in OnceLock at first use; test with "true" so extension/content-type logic is exercised.
+        // For env false/unset behavior see test_parse_compression_enabled.
         temp_env::with_var(ENV_COMPRESSION_ENABLED, Some("true"), || {
             assert!(is_compressible(&headers, "file.txt"));
         });
 
-        temp_env::with_var_unset(ENV_COMPRESSION_ENABLED, || {
-            assert!(!is_compressible(&headers, "file.txt"));
-        });
-
         temp_env::with_var(ENV_COMPRESSION_ENABLED, Some("true"), || {
             let mut headers = HeaderMap::new();
-            // Test non-compressible extensions
+            // Test non-compressible extensions - compressed archives
             headers.insert("content-type", "text/plain".parse().unwrap());
             assert!(!is_compressible(&headers, "file.gz"));
             assert!(!is_compressible(&headers, "file.zip"));
-            assert!(!is_compressible(&headers, "file.mp4"));
+            assert!(!is_compressible(&headers, "file.7z"));
+            assert!(!is_compressible(&headers, "file.zst"));
+            assert!(!is_compressible(&headers, "file.br"));
+            assert!(!is_compressible(&headers, "file.tgz"));
+
+            // Test non-compressible extensions - images
             assert!(!is_compressible(&headers, "file.jpg"));
+            assert!(!is_compressible(&headers, "file.jpeg"));
+            assert!(!is_compressible(&headers, "file.png"));
+            assert!(!is_compressible(&headers, "file.gif"));
+            assert!(!is_compressible(&headers, "file.webp"));
+            assert!(!is_compressible(&headers, "file.avif"));
+
+            // Test non-compressible extensions - video
+            assert!(!is_compressible(&headers, "file.mp4"));
+            assert!(!is_compressible(&headers, "file.mkv"));
+            assert!(!is_compressible(&headers, "file.webm"));
+
+            // Test non-compressible extensions - audio
+            assert!(!is_compressible(&headers, "file.mp3"));
+            assert!(!is_compressible(&headers, "file.aac"));
+            assert!(!is_compressible(&headers, "file.ogg"));
+            assert!(!is_compressible(&headers, "file.flac"));
+            assert!(!is_compressible(&headers, "file.opus"));
+
+            // Test non-compressible extensions - documents
+            assert!(!is_compressible(&headers, "file.pdf"));
+            assert!(!is_compressible(&headers, "file.docx"));
+            assert!(!is_compressible(&headers, "file.xlsx"));
+            assert!(!is_compressible(&headers, "file.pptx"));
+
+            // Test non-compressible extensions - packages
+            assert!(!is_compressible(&headers, "file.deb"));
+            assert!(!is_compressible(&headers, "file.rpm"));
+            assert!(!is_compressible(&headers, "file.jar"));
+
+            // Test non-compressible extensions - web fonts
+            assert!(!is_compressible(&headers, "file.woff2"));
 
             // Test non-compressible content types
             headers.insert("content-type", "video/mp4".parse().unwrap());
@@ -107,12 +213,27 @@ mod tests {
             headers.insert("content-type", "audio/mpeg".parse().unwrap());
             assert!(!is_compressible(&headers, "file.txt"));
 
+            headers.insert("content-type", "image/png".parse().unwrap());
+            assert!(!is_compressible(&headers, "file.txt"));
+
+            headers.insert("content-type", "image/webp".parse().unwrap());
+            assert!(!is_compressible(&headers, "file.txt"));
+
             headers.insert("content-type", "application/zip".parse().unwrap());
             assert!(!is_compressible(&headers, "file.txt"));
 
             headers.insert("content-type", "application/x-gzip".parse().unwrap());
             assert!(!is_compressible(&headers, "file.txt"));
 
+            headers.insert("content-type", "application/x-7z-compressed".parse().unwrap());
+            assert!(!is_compressible(&headers, "file.txt"));
+
+            headers.insert("content-type", "application/pdf".parse().unwrap());
+            assert!(!is_compressible(&headers, "file.txt"));
+
+            headers.insert("content-type", "font/woff2".parse().unwrap());
+            assert!(!is_compressible(&headers, "file.txt"));
+
             // Test compressible cases
             headers.insert("content-type", "text/plain".parse().unwrap());
             assert!(is_compressible(&headers, "file.txt"));
@@ -125,4 +246,34 @@ mod tests {
             assert!(is_compressible(&headers, "file.json"));
         });
     }
+
+    #[test]
+    fn test_added_exclude_compress_extensions_parsing() {
+        temp_env::with_var(ENV_ADDED_EXCLUDE_COMPRESS_EXTENSIONS, Some(".foo,.bar"), || {
+            let added = parse_added_exclude_extensions();
+            assert_eq!(added, [".foo", ".bar"]);
+        });
+        temp_env::with_var(ENV_ADDED_EXCLUDE_COMPRESS_EXTENSIONS, Some("baz, .qux"), || {
+            let added = parse_added_exclude_extensions();
+            assert_eq!(added, [".baz", ".qux"]);
+        });
+        temp_env::with_var_unset(ENV_ADDED_EXCLUDE_COMPRESS_EXTENSIONS, || {
+            let added = parse_added_exclude_extensions();
+            assert!(added.is_empty());
+        });
+    }
+
+    #[test]
+    fn test_added_exclude_compress_extensions_default_compressible() {
+        use http::HeaderMap;
+
+        let mut headers = HeaderMap::new();
+        headers.insert("content-type", "text/plain".parse().unwrap());
+        temp_env::with_var(ENV_COMPRESSION_ENABLED, Some("true"), || {
+            temp_env::with_var_unset(ENV_ADDED_EXCLUDE_COMPRESS_EXTENSIONS, || {
+                assert!(is_compressible(&headers, "file.foo"));
+                assert!(is_compressible(&headers, "file.bar"));
+            });
+        });
+    }
 }

crates/utils/src/string.rs

@@ -157,10 +157,11 @@ pub fn has_pattern(patterns: &[&str], match_str: &str) -> bool {
 /// assert!(has_string_suffix_in_slice("document.TXT", &suffixes));
 /// assert!(!has_string_suffix_in_slice("image.png", &suffixes));
 /// ```
-pub fn has_string_suffix_in_slice(str: &str, list: &[&str]) -> bool {
+pub fn has_string_suffix_in_slice(str: &str, list: &[impl AsRef<str>]) -> bool {
     let str = str.to_lowercase();
     for v in list {
-        if *v == "*" {
+        let v = v.as_ref();
+        if v == "*" {
             return true;
         }