[ISSUE #2192]💫ADefaultMappedFile implement rename_to🍻 #2193
Conversation
WalkthroughThe pull request implements the Changes
Assessment against linked issues
Possibly related PRs
Suggested labels
Suggested reviewers
Poem
Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media? 🪧 TipsChatThere are 3 ways to chat with CodeRabbit:
Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments. CodeRabbit Commands (Invoked using PR comments)
Other keywords and placeholders
Documentation and Community
|
|
🔊@mxsm 🚀Thanks for your contribution🎉！ 💡CodeRabbit(AI) will review your code first🔥！ Note 🚨The code review suggestions from CodeRabbit are to be used as a reference only, and the PR submitter can decide whether to make changes based on their own judgment. Ultimately, the project management personnel will conduct the final code review💥. |
rocketmq-rust-bot
added
AI review first
rocketmq-rust-bot
requested review from
rocketmq-rust-bot,
SpaceXCN and
TeslaRustor
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 2
🧹 Nitpick comments (2)
rocketmq-store/src/log_file/mapped_file/default_mapped_file_impl.rs (2)
223-236: Add documentation for the rename_to method.The method lacks documentation about its behavior, parameters, return value, and possible failure cases. Consider adding comprehensive documentation.
Add this documentation above the method:
/// Renames the mapped file to the specified name and updates internal state. /// /// # Arguments /// /// * `file_name` - The new name for the file /// /// # Returns /// /// Returns `Ok(())` if the rename operation succeeds, or an error if: /// * The file couldn't be renamed /// * The renamed file couldn't be reopened /// * The memory mapping couldn't be updated /// /// # Safety /// /// This operation is not atomic. If the file is successfully renamed but /// reopening fails, the internal state may become inconsistent.
223-236: Consider making the rename operation atomic.The current implementation has a critical window where the file is renamed but the internal state is inconsistent. Consider implementing a more atomic approach:
- Create a new file with the target name
- Copy the content
- Swap the files
- Clean up the old file
Would you like me to provide a more detailed implementation for this atomic approach?
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
rocketmq-store/src/log_file/mapped_file/default_mapped_file_impl.rs(2 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (9)
- GitHub Check: build (windows-latest, nightly)
- GitHub Check: build (windows-latest, stable)
- GitHub Check: build (macos-latest, nightly)
- GitHub Check: build (macos-latest, stable)
- GitHub Check: test
- GitHub Check: build (ubuntu-latest, nightly)
- GitHub Check: auto-approve
- GitHub Check: build
- GitHub Check: build (ubuntu-latest, stable)
🔇 Additional comments (1)
rocketmq-store/src/log_file/mapped_file/default_mapped_file_impl.rs (1)
22-22: LGTM!The
Pathimport is correctly added and necessary for the file renaming functionality.
| let new_file = Path::new(file_name); | ||
| match std::fs::rename(self.file_name.as_str(), new_file) { | ||
| Ok(_) => { | ||
| self.file_name = CheetahString::from(file_name); | ||
| match fs::File::open(new_file) { | ||
| Ok(new_file) => { | ||
| self.file = new_file; | ||
| } | ||
| Err(_) => return false, | ||
| } | ||
| true | ||
| } | ||
| Err(_) => false, | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve error handling and logging.
The current implementation silently discards error details. Consider:
- Logging the error details for debugging
- Returning a
Resulttype instead ofboolto provide more context about failures
Here's a suggested improvement:
- fn rename_to(&mut self, file_name: &str) -> bool {
+ fn rename_to(&mut self, file_name: &str) -> std::io::Result<()> {
let new_file = Path::new(file_name);
- match std::fs::rename(self.file_name.as_str(), new_file) {
- Ok(_) => {
- self.file_name = CheetahString::from(file_name);
- match fs::File::open(new_file) {
- Ok(new_file) => {
- self.file = new_file;
- }
- Err(_) => return false,
- }
- true
- }
- Err(_) => false,
+ std::fs::rename(self.file_name.as_str(), new_file).map_err(|e| {
+ error!("Failed to rename file from {} to {}: {}", self.file_name, file_name, e);
+ e
+ })?;
+
+ self.file_name = CheetahString::from(file_name);
+ self.file = fs::File::open(new_file).map_err(|e| {
+ error!("Failed to open renamed file {}: {}", file_name, e);
+ e
+ })?;
+
+ // Update memory mapping
+ self.mmapped_file = unsafe {
+ MmapMut::map_mut(&self.file).map_err(|e| {
+ error!("Failed to remap file {}: {}", file_name, e);
+ e
+ })?
}
+ Ok(())
}Committable suggestion skipped: line range outside the PR's diff.
💡 Codebase verification
Path traversal vulnerability confirmed in rename_to method
The codebase lacks path validation mechanisms, making the rename_to method vulnerable to path traversal attacks. The method directly uses the input file name without:
- Validating against directory traversal sequences (../, ./)
- Ensuring the target path remains within allowed directories
- Canonicalizing or normalizing the path
🔗 Analysis chain
Add input validation to prevent path traversal attacks.
The current implementation doesn't validate the input file name, which could allow path traversal attacks. Consider adding validation to ensure the new path is within the expected directory.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check if there are any existing path validation functions in the codebase
rg -A 5 'fn.*validate.*path'
Length of output: 30
Script:
#!/bin/bash
# Search for path-related security checks and manipulations
rg -i "path|canonicalize|normalize" --type rust -A 3
# Look for any security-related functions
ast-grep --pattern 'fn $FUNC($$$) {
$$$
path$$$
$$$
}'
Length of output: 66107
rocketmq-rust-bot
added
approved
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #2193 +/- ##
==========================================
- Coverage 28.75% 28.74% -0.01%
==========================================
Files 498 498
Lines 71059 71069 +10
==========================================
Hits 20430 20430
- Misses 50629 50639 +10 ☔ View full report in Codecov by Sentry. |
Which Issue(s) This PR Fixes(Closes)
Fixes #2192
Brief Description
How Did You Test This Change?
Summary by CodeRabbit
Bug Fixes
Refactor