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我是帅哥 #16

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@nanami-wq nanami-wq commented Oct 5, 2024

我是帅哥,你说得对,但是马嘉祺超绝回头肘击。

Summary by CodeRabbit

Release Notes

  • New Features

    • Introduced a web application with user authentication via JWT, allowing for secure registration and login.
    • Added functionalities for posting and managing questions and answers.
    • Implemented new HTML templates for login, registration, and welcome pages, enhancing the user interface.
    • Added middleware for JWT authentication to secure specific endpoints.
    • New database connection setup for user management.
  • Bug Fixes

    • Updated the QA documentation to reflect recent changes.
  • Chores

    • Created a new Go module for managing dependencies.

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coderabbitai bot commented Oct 5, 2024

Walkthrough

The changes in this pull request introduce a new Go module for the QA project, including the creation of a go.mod file that specifies dependencies and the Go version. Several new files are added, including main.go, which implements a web application using the Gin framework and GORM for MySQL interactions. Additionally, multiple HTML templates for user authentication and a welcome page are introduced. The QA/README.md file is updated with a single line indicating updates.

Changes

File Change Summary
QA/README.md Added line stating "我做了更新" (I made updates).
QA/go.mod Introduced a new Go module file specifying module name, Go version 1.23.2, and a list of indirect dependencies.
QA/auth/auth.go Added functions for user authentication: GenerateSalt, HashPassword, GenerateJWT, and AuthenticateToken.
QA/config/config.go Added configuration for initializing MySQL database connections with GORM and automatic migrations.
QA/handlers/handlers.go Introduced HTTP handlers for user registration, login, question posting, answer posting, and management functions.
QA/main.go Established a web application with endpoints for user management and question handling.
QA/middleware/middleware.go Introduced JWTMiddleware for handling JWT authentication in HTTP requests.
QA/models/models.go Added data structures for User, Question, and Answer entities.
QA/template/login.tmpl Introduced a new HTML template for the login page with styled input fields and buttons.
QA/template/open.tmpl Added a new HTML template for a welcome page with a responsive design and links to login and registration.
QA/template/register.tmpl Introduced a new HTML template for the registration page, styled for user-friendly interaction.
QA/users.go Added a new Go file for establishing a MySQL database connection and creating a "users" database if it doesn't exist.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant WebApp
    participant Database

    User->>WebApp: Register
    WebApp->>Database: Create User
    Database-->>WebApp: User Created
    WebApp-->>User: Registration Success

    User->>WebApp: Login
    WebApp->>Database: Verify User
    Database-->>WebApp: User Verified
    WebApp-->>User: Login Success

    User->>WebApp: Post Question
    WebApp->>Database: Save Question
    Database-->>WebApp: Question Saved
    WebApp-->>User: Question Posted
Loading

🐰 "In the land of code, where rabbits hop,
New modules and templates, we just can't stop!
With login and questions, all set to play,
Hopping through changes, we brighten the day!
So here's to the updates, let's cheer and rejoice,
For every new feature, we all have a voice!" 🐇


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Actionable comments posted: 20

🧹 Outside diff range and nitpick comments (3)
QA/users.go (1)

21-27: Improve logging and error handling

While the database creation logic is correct, there are some improvements that can be made:

  1. Instead of using fmt.Println for success messages, consider using a proper logging package for consistency and better control in different environments.
  2. The error handling could be more informative by including context about what operation failed.

Here's an improved version:

import "log"

// ...

createDBSQL := "CREATE DATABASE IF NOT EXISTS users"
_, err = db.Exec(createDBSQL)
if err != nil {
    log.Fatalf("Failed to create database: %v", err)
}
log.Println("Database created successfully")

Also, consider adding more detailed logging throughout the application to aid in debugging and monitoring.

QA/template/open.tmpl (1)

1-32: Improve PR title and description to reflect actual changes.

The current PR title "我是帅哥" (I am handsome) and description do not provide meaningful information about the changes introduced in this pull request. The new open.tmpl file appears to be a welcome page template for Hdu.wiki, which is not reflected in the PR metadata.

Please update the PR title and description to accurately describe the changes you've made. For example:

Title: "Add welcome page template for Hdu.wiki"

Description:
"This PR introduces a new HTML template file (open.tmpl) for the Hdu.wiki platform's welcome page. The template includes:

  • Basic HTML structure
  • Inline CSS styles for buttons and images
  • Welcome message in Chinese
  • Login and registration links

Future improvements could include moving CSS to an external file and enhancing responsiveness."

Providing clear and descriptive PR metadata helps reviewers understand the context and purpose of your changes, leading to more effective code reviews.

QA/main.go (1)

66-67: Ensure Consistent Language and Keys in Error Messages

The error messages in the responses are a mix of Chinese and English, and they use different keys like "message" and "error". For better user experience and maintainability, it's advisable to:

  • Use a consistent language throughout all messages.
  • Standardize the JSON keys used in responses.

Consider choosing one language based on your target user base and stick with it. Also, decide on a standard key, such as "message" or "error", for all response messages.

Also applies to: 70-71, 75-77, 88-89, 94-95, 107-107, 129-130, 138-139, 184-185, 191-192, 202-203, 206-207

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 2102ded and a7db5a5.

⛔ Files ignored due to path filters (3)
  • QA/go.sum is excluded by !**/*.sum
  • QA/static/background.jpg is excluded by !**/*.jpg
  • QA/static/logo.jpg is excluded by !**/*.jpg
📒 Files selected for processing (7)
  • QA/README.md (1 hunks)
  • QA/go.mod (1 hunks)
  • QA/main.go (1 hunks)
  • QA/template/login.tmpl (1 hunks)
  • QA/template/open.tmpl (1 hunks)
  • QA/template/register.tmpl (1 hunks)
  • QA/users.go (1 hunks)
✅ Files skipped from review due to trivial changes (2)
  • QA/README.md
  • QA/go.mod
🔇 Additional comments (6)
QA/users.go (1)

1-9: LGTM: Package declaration and imports are correct.

The package declaration and imports are appropriate for creating a MySQL database connection in a Go program. The blank import of the MySQL driver is correctly used to register the driver.

QA/template/open.tmpl (1)

1-5: LGTM: HTML structure and metadata are well-formed.

The HTML structure follows HTML5 standards, and the document's title accurately reflects its purpose as a welcome page for Hdu.wiki.

Also applies to: 25-32

QA/template/login.tmpl (2)

1-6: HTML structure looks good!

The HTML structure is well-formed with proper doctype and language declaration. The viewport meta tag is correctly set for responsive design, and the title is appropriately set to "登录" (Login).

Also applies to: 75-76, 93-96


77-92: 🛠️ Refactor suggestion

Form structure is good, but consider these improvements:

  1. The form action /hdu.wiki/login seems unusual. Verify if this is the correct endpoint for your login API.

  2. For better accessibility, associate labels with inputs using the for attribute:

<label for="username"><b>学号</b></label>
<input id="username" type="text" placeholder="输入学号" name="username" required>

<label for="password"><b>密码</b></label>
<input id="password" type="password" placeholder="输入密码" name="password" required>
  1. Consider using a server-side redirect for the registration button instead of client-side JavaScript. This can be achieved by changing the registration button to a form submit button within a separate form:
<form action="/hdu.wiki/register" method="get" style="display: inline;">
    <button type="submit">注册</button>
</form>

To verify the login endpoint, run the following command:

#!/bin/bash
# Check if there's a route handler for /hdu.wiki/login
rg -i "route.*['\"]?/hdu\.wiki/login['\"]?" --type go
QA/template/register.tmpl (2)

1-99: Overall review summary

The template provides a functional registration form with responsive design. However, there are several areas that need improvement:

  1. Inconsistency between page title and form purpose.
  2. Duplicate CSS declarations that should be consolidated.
  3. Mismatched form action URL.
  4. Missing password confirmation field.

After addressing these issues, please ensure to test the form thoroughly, including:

  • Visual appearance across different devices and screen sizes.
  • Form submission with valid and invalid inputs.
  • Proper handling of the form data on the server-side.

To assist with testing, you could use a tool like html5validator to check for HTML validity. Run the following command:

#!/bin/bash
# Install html5validator if not already installed
pip install html5validator

# Validate the HTML file
html5validator QA/template/register.tmpl

This will help catch any HTML validity issues that might have been overlooked.


64-64: Review the background image path

The background image is set using a relative path '/static/background.jpg'. This assumes a specific directory structure which may not be portable across different environments.

Please verify if this path is correct for your project structure. If you're using a templating engine or a specific framework, you might need to adjust the path accordingly.

To check if the image exists and is accessible, you can run:

QA/users.go Outdated
Comment on lines 12 to 20
dsn := "username:password@tcp(localhost:3306)/"
db, err := sql.Open("mysql", dsn)
if err != nil {
log.Fatal(err)
}
defer db.Close()
if err := db.Ping(); err != nil {
log.Fatal(err)
}
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⚠️ Potential issue

Security concern: Hardcoded database credentials

The Data Source Name (DSN) contains hardcoded placeholder values for the username and password. This is a security risk and violates best practices for credential management.

Consider the following improvements:

  1. Use environment variables or a secure configuration management system to store and retrieve database credentials.
  2. Implement proper error handling to ensure the program fails gracefully if the credentials are missing or invalid.

Example using environment variables:

import "os"

// ...

username := os.Getenv("DB_USERNAME")
password := os.Getenv("DB_PASSWORD")
host := os.Getenv("DB_HOST")
port := os.Getenv("DB_PORT")

dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/", username, password, host, port)

Also, consider using a connection pool and setting appropriate connection parameters (e.g., max open connections, connection lifetime) for better performance and resource management.

QA/users.go Outdated
Comment on lines 11 to 27
func main() {
dsn := "username:password@tcp(localhost:3306)/"
db, err := sql.Open("mysql", dsn)
if err != nil {
log.Fatal(err)
}
defer db.Close()
if err := db.Ping(); err != nil {
log.Fatal(err)
}
createDBSQL := "CREATE DATABASE IF NOT EXISTS users"
_, err = db.Exec(createDBSQL)
if err != nil {
log.Fatal(err)
}
fmt.Println("Database created successfully")
}
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🛠️ Refactor suggestion

Refactor for better separation of concerns and error handling

The current structure of the main function violates the Single Responsibility Principle and uses abrupt error handling. Consider refactoring the code to improve maintainability and flexibility:

  1. Separate the database connection logic into its own function.
  2. Create a separate function for database creation.
  3. Use more flexible error handling instead of log.Fatal everywhere.

Here's a suggested refactoring:

func main() {
    db, err := connectDB()
    if err != nil {
        log.Printf("Failed to connect to database: %v", err)
        os.Exit(1)
    }
    defer db.Close()

    if err := createUsersDB(db); err != nil {
        log.Printf("Failed to create users database: %v", err)
        os.Exit(1)
    }

    log.Println("Database setup completed successfully")
}

func connectDB() (*sql.DB, error) {
    dsn := "username:password@tcp(localhost:3306)/"
    db, err := sql.Open("mysql", dsn)
    if err != nil {
        return nil, fmt.Errorf("failed to open database: %w", err)
    }

    if err := db.Ping(); err != nil {
        return nil, fmt.Errorf("failed to ping database: %w", err)
    }

    return db, nil
}

func createUsersDB(db *sql.DB) error {
    createDBSQL := "CREATE DATABASE IF NOT EXISTS users"
    _, err := db.Exec(createDBSQL)
    if err != nil {
        return fmt.Errorf("failed to create database: %w", err)
    }
    return nil
}

This refactoring improves the code structure, makes it more testable, and provides more informative error messages.

QA/users.go Outdated
Comment on lines 1 to 27
package main

import (
"database/sql"
"fmt"
"log"

_ "github.com/go-sql-driver/mysql"
)

func main() {
dsn := "username:password@tcp(localhost:3306)/"
db, err := sql.Open("mysql", dsn)
if err != nil {
log.Fatal(err)
}
defer db.Close()
if err := db.Ping(); err != nil {
log.Fatal(err)
}
createDBSQL := "CREATE DATABASE IF NOT EXISTS users"
_, err = db.Exec(createDBSQL)
if err != nil {
log.Fatal(err)
}
fmt.Println("Database created successfully")
}
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🛠️ Refactor suggestion

Enhance functionality and follow Go best practices

While the current code achieves the basic goal of creating a database, there are several improvements that could be made to enhance its functionality and adhere to Go best practices:

  1. Use constants for string literals, especially for the database name.
  2. Implement configuration management (e.g., using viper) for flexible settings.
  3. Add command-line argument parsing for more control (e.g., using cobra).
  4. Create necessary tables after creating the database.
  5. Implement a more robust logging system (e.g., using zap).

Here's an example of how you might start implementing these suggestions:

package main

import (
    "database/sql"
    "fmt"
    "log"
    "os"

    _ "github.com/go-sql-driver/mysql"
    "github.com/spf13/viper"
)

const (
    DBName = "users"
)

func main() {
    if err := loadConfig(); err != nil {
        log.Fatalf("Failed to load config: %v", err)
    }

    db, err := connectDB()
    if err != nil {
        log.Fatalf("Failed to connect to database: %v", err)
    }
    defer db.Close()

    if err := createDatabase(db); err != nil {
        log.Fatalf("Failed to create database: %v", err)
    }

    if err := createTables(db); err != nil {
        log.Fatalf("Failed to create tables: %v", err)
    }

    log.Println("Database setup completed successfully")
}

func loadConfig() error {
    viper.SetConfigName("config")
    viper.AddConfigPath(".")
    return viper.ReadInConfig()
}

func connectDB() (*sql.DB, error) {
    dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/",
        viper.GetString("db.user"),
        viper.GetString("db.password"),
        viper.GetString("db.host"),
        viper.GetString("db.port"))
    
    return sql.Open("mysql", dsn)
}

func createDatabase(db *sql.DB) error {
    _, err := db.Exec(fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s", DBName))
    return err
}

func createTables(db *sql.DB) error {
    _, err := db.Exec(fmt.Sprintf("USE %s", DBName))
    if err != nil {
        return err
    }

    // Add table creation SQL here
    _, err = db.Exec(`
        CREATE TABLE IF NOT EXISTS users (
            id INT AUTO_INCREMENT PRIMARY KEY,
            username VARCHAR(50) NOT NULL UNIQUE,
            email VARCHAR(100) NOT NULL UNIQUE,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    `)
    return err
}

This example demonstrates the use of constants, configuration management with viper, and a more structured approach to database and table creation. Remember to create a config.yaml file with the necessary database connection details.

Would you like assistance in implementing these improvements or creating a more comprehensive database initialization script?

Comment on lines +6 to +24
<style>
.button-style {
display: inline-block;
padding: 10px 20px;
background-color: #007bff;
color: white;
text-decoration: none;
border-radius: 5px;
cursor: pointer;
}
.image-style {
max-width: 100%;
height: auto;
}
h1 {
font-size: 30px;
}

</style>
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🛠️ Refactor suggestion

Consider moving CSS to an external file and enhancing responsiveness.

While the current inline CSS is functional, consider the following improvements:

  1. Move CSS to an external file for better maintainability and reusability.
  2. Implement a responsive design approach using media queries.
  3. Consider using a CSS reset or normalize.css for consistent styling across browsers.
  4. Add hover effects to buttons for better user interaction.

Here's a sample of how you could start refactoring the CSS:

/* styles.css */
body {
    font-family: Arial, sans-serif;
    text-align: center;
    padding: 20px;
}

.button-style {
    display: inline-block;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.button-style:hover {
    background-color: #0056b3;
}

.image-style {
    max-width: 100%;
    height: auto;
}

h1 {
    font-size: 30px;
}

@media (max-width: 600px) {
    h1 {
        font-size: 24px;
    }
    .button-style {
        display: block;
        margin: 10px auto;
    }
}

Then, in your HTML file, you can link to this external CSS:

<head>
    <title>Welcome to Hdu.wiki</title>
    <link rel="stylesheet" href="/static/styles.css">
</head>

Comment on lines +26 to +31
<body>
<h1>欢迎来到杭电论坛!</h1>
<img src="/static/logo.jpg" alt="Logo" class="image-style">
<a href="/hdu.wiki/login" class="button-style">登录</a>
<a href="/hdu.wiki/register" class="button-style">注册</a>
</body>
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🛠️ Refactor suggestion

Enhance robustness of image and link paths.

The body content is appropriate for a welcome page, but consider the following improvements:

  1. Use a more robust path for the image source:

    <img src="{{ .StaticURL }}/logo.jpg" alt="Hdu.wiki Logo" class="image-style">
  2. Use relative paths for links to improve portability:

    <a href="{{ .LoginURL }}" class="button-style">登录</a>
    <a href="{{ .RegisterURL }}" class="button-style">注册</a>
  3. Add more semantic HTML5 elements for better structure:

    <header>
      <h1>欢迎来到杭电论坛!</h1>
    </header>
    <main>
      <img src="{{ .StaticURL }}/logo.jpg" alt="Hdu.wiki Logo" class="image-style">
      <nav>
        <a href="{{ .LoginURL }}" class="button-style">登录</a>
        <a href="{{ .RegisterURL }}" class="button-style">注册</a>
      </nav>
    </main>

These changes will make your template more robust and semantically structured.

QA/main.go Outdated
c.JSON(http.StatusOK, questions)
}
func deleteQuestion(c *gin.Context) {
id, _ := strconv.Atoi(c.Param("id"))
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⚠️ Potential issue

Handle Errors When Parsing IDs from Route Parameters

Ignoring errors when converting route parameters to integers with strconv.Atoi can lead to unexpected behavior if the parameter is not a valid integer.

Apply this diff to handle the error:

-    id, _ := strconv.Atoi(c.Param("id"))
+    idStr := c.Param("id")
+    id, err := strconv.Atoi(idStr)
+    if err != nil {
+        c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid ID"})
+        return
+    }

Implement this change in both the deleteQuestion and deleteAnswer functions to ensure robust error handling.

Also applies to: 135-135

QA/main.go Outdated
Comment on lines 41 to 42
if _, err := rand.Read(bytes); err != nil {
panic("Error generating salt")
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⚠️ Potential issue

Avoid Using panic in GenerateSalt; Return an Error Instead

Using panic can cause your entire application to crash, which is undesirable in a production environment. It's better to return an error and handle it gracefully.

Modify the function as follows:

-func GenerateSalt() string {
+func GenerateSalt() (string, error) {
     bytes := make([]byte, 16)
     if _, err := rand.Read(bytes); err != nil {
-        panic("Error generating salt")
+        return "", err
     }
     return hex.EncodeToString(bytes), nil
 }

Update the places where GenerateSalt is called to handle the returned error appropriately.

Committable suggestion was skipped due to low confidence.

QA/main.go Outdated
Comment on lines 70 to 73
if len(u.ID) != StudentIdLen {
c.JSON(http.StatusBadRequest, gin.H{"error": "请使用你本人的学号"})
return false
}
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⚠️ Potential issue

Validate That Student IDs Are Numeric

Currently, the code checks only the length of the Student ID but doesn't verify if it contains only digits. This can lead to invalid IDs being accepted.

Apply this diff to validate the Student ID format:

+import (
+    ...
+    "regexp"
+)

 func yes(c *gin.Context, u User) bool {
     const (
         ...
     )

     if len(u.ID) != StudentIdLen {
         c.JSON(http.StatusBadRequest, gin.H{"error": "请使用你本人的学号"})
         return false
     }
+    if !regexp.MustCompile(`^\d+$`).MatchString(u.ID) {
+        c.JSON(http.StatusBadRequest, gin.H{"error": "学号只能包含数字"})
+        return false
+    }

This ensures that only valid numeric Student IDs are accepted.

Committable suggestion was skipped due to low confidence.

QA/main.go Outdated
Comment on lines 48 to 53
func HashPassword(password, salt string) string {
saltedPassword := password + salt
hash := sha256.New()
hash.Write([]byte(saltedPassword))
return hex.EncodeToString(hash.Sum(nil))
}
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⚠️ Potential issue

Use a Secure Password Hashing Algorithm Instead of SHA-256

Using SHA-256 for password hashing is not recommended because it's designed for speed and is vulnerable to brute-force attacks. It's better to use a specialized password hashing algorithm like bcrypt, scrypt, or Argon2.

[security]

Apply this diff to switch to bcrypt:

+import (
+    "golang.org/x/crypto/bcrypt"
+    ...
+)

-func HashPassword(password, salt string) string {
-    saltedPassword := password + salt
-    hash := sha256.New()
-    hash.Write([]byte(saltedPassword))
-    return hex.EncodeToString(hash.Sum(nil))
-}
+func HashPassword(password string) (string, error) {
+    hashedBytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+    return string(hashedBytes), err
+}

+func CheckPasswordHash(password, hash string) bool {
+    err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+    return err == nil
+}

Update the registration and login logic accordingly to handle errors and remove the use of salt.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
func HashPassword(password, salt string) string {
saltedPassword := password + salt
hash := sha256.New()
hash.Write([]byte(saltedPassword))
return hex.EncodeToString(hash.Sum(nil))
}
import (
"golang.org/x/crypto/bcrypt"
// ... (other imports)
)
func HashPassword(password string) (string, error) {
hashedBytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
return string(hashedBytes), err
}
func CheckPasswordHash(password, hash string) bool {
err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
return err == nil
}

QA/main.go Outdated
Comment on lines 121 to 123
var questions []Question
db2.Preload("Answers").Find(&questions)
c.JSON(http.StatusOK, questions)
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🛠️ Refactor suggestion

Implement Pagination in listQuestions to Improve Performance

Fetching all questions and preloading their answers without pagination can lead to performance issues as the data grows.

Consider adding pagination parameters to limit the number of records returned per request:

 func listQuestions(c *gin.Context) {
     var questions []Question
+    page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+    pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "10"))
+    offset := (page - 1) * pageSize
-    db2.Preload("Answers").Find(&questions)
+    db2.Preload("Answers").Limit(pageSize).Offset(offset).Find(&questions)
     c.JSON(http.StatusOK, questions)
 }

Ensure to handle errors when parsing query parameters.

Committable suggestion was skipped due to low confidence.

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Actionable comments posted: 6

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between a7db5a5 and 94a5fa1.

📒 Files selected for processing (1)
  • QA/main.go (1 hunks)
🧰 Additional context used

QA/main.go Outdated
Comment on lines 208 to 213
func searchQuestions(c *gin.Context) {
query := c.Query("query")
var results []Question
db2.Where("title LIKE ? OR content LIKE ?", "%"+query+"%", "%"+query+"%").Find(&results)
c.JSON(http.StatusOK, results)
}
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⚠️ Potential issue

Handle Empty Search Queries Appropriately

In the searchQuestions function, if the query parameter is empty, the function returns all questions. This might not be the intended behavior and could lead to performance issues as the data grows.

Consider returning an error when the search query is empty:

 func searchQuestions(c *gin.Context) {
     query := c.Query("query")
+    if strings.TrimSpace(query) == "" {
+        c.JSON(http.StatusBadRequest, gin.H{"error": "Search query cannot be empty"})
+        return
+    }
     var results []Question
     db2.Where("title LIKE ? OR content LIKE ?", "%"+query+"%", "%"+query+"%").Find(&results)
     c.JSON(http.StatusOK, results)
 }

This ensures that the client provides a valid search term.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
func searchQuestions(c *gin.Context) {
query := c.Query("query")
var results []Question
db2.Where("title LIKE ? OR content LIKE ?", "%"+query+"%", "%"+query+"%").Find(&results)
c.JSON(http.StatusOK, results)
}
func searchQuestions(c *gin.Context) {
query := c.Query("query")
if strings.TrimSpace(query) == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "Search query cannot be empty"})
return
}
var results []Question
db2.Where("title LIKE ? OR content LIKE ?", "%"+query+"%", "%"+query+"%").Find(&results)
c.JSON(http.StatusOK, results)
}

QA/main.go Outdated
var db1 *gorm.DB
var db2 *gorm.DB
var err error
var jwtKey = []byte("your_secret_key")
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⚠️ Potential issue

Avoid Hardcoding Secret Keys; Use Environment Variables Instead

Hardcoding secret keys like jwtKey in the code is a security risk. If the code is ever exposed, the secret key becomes compromised. It's recommended to use environment variables or configuration files to manage sensitive data securely.

Apply this diff to use an environment variable for the JWT secret key:

 import (
     // Other imports...
+    "os"
 )

-var jwtKey = []byte("your_secret_key")
+var jwtKey = []byte(os.Getenv("JWT_SECRET_KEY"))

Ensure that the environment variable JWT_SECRET_KEY is set appropriately in your deployment environment.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
var jwtKey = []byte("your_secret_key")
import (
// Other imports...
"os"
)
var jwtKey = []byte(os.Getenv("JWT_SECRET_KEY"))

QA/main.go Outdated
Comment on lines 199 to 207
func deleteAnswer(c *gin.Context) {
id, _ := strconv.Atoi(c.Param("id"))
result := db2.Delete(&Answer{}, id)
if result.RowsAffected == 0 {
c.JSON(http.StatusNotFound, gin.H{"error": "Answer not found"})
return
}
c.JSON(http.StatusOK, gin.H{"message": "Answer deleted"})
}
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⚠️ Potential issue

Restrict Answer Deletion to the Owner

In the deleteAnswer function, any authenticated user can delete any answer. To ensure security, only the user who posted the answer should be allowed to delete it. This ownership check is currently missing.

Apply this diff to verify answer ownership before deletion:

 func deleteAnswer(c *gin.Context) {
     id, _ := strconv.Atoi(c.Param("id"))
+    userID, exists := c.Get("userID")
+    if !exists {
+        c.JSON(http.StatusUnauthorized, gin.H{"error": "User not authenticated"})
+        return
+    }
+    var answer Answer
+    result := db2.Where("id = ?", id).First(&answer)
+    if result.RowsAffected == 0 {
+        c.JSON(http.StatusNotFound, gin.H{"error": "Answer not found"})
+        return
+    }
+    if answer.ID != userID.(string) {
+        c.JSON(http.StatusForbidden, gin.H{"error": "You are not authorized to delete this answer"})
+        return
+    }
     db2.Delete(&answer)
     c.JSON(http.StatusOK, gin.H{"message": "Answer deleted"})
 }

Update the route to include JWTMiddleware:

-server.DELETE("/hdu.wiki/answers/:id", deleteAnswer)
+server.DELETE("/hdu.wiki/answers/:id", JWTMiddleware(), deleteAnswer)

Committable suggestion was skipped due to low confidence.

QA/main.go Outdated
Comment on lines 165 to 184
func postAnswer(c *gin.Context) {
var answer Answer
c.BindJSON(&answer)
var existingquestion Question
res := db2.Where("question_id= ?", answer.QuestionID).First(&existingquestion)
if res.RowsAffected == 0 {
c.JSON(http.StatusBadRequest, gin.H{
"message": "未找到该问题",
})
return
}
if len(answer.Content) == 0 || len(answer.Content) > 1000 {
c.JSON(http.StatusBadRequest, gin.H{
"message": "回答请设置在1-1000字内",
})
return
}
db2.Create(&answer)
c.JSON(http.StatusCreated, answer)
}
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⚠️ Potential issue

Associate Answers with the Authenticated User

In the postAnswer function, the answer.ID field (which represents the user ID) should be set to the ID of the authenticated user. This ensures that each answer is correctly associated with the user who posted it. Currently, this association is missing.

Apply this diff to set the answer.ID to the authenticated user's ID:

 func postAnswer(c *gin.Context) {
     var answer Answer
     c.BindJSON(&answer)
+    userID, exists := c.Get("userID")
+    if !exists {
+        c.JSON(http.StatusUnauthorized, gin.H{"error": "User not authenticated"})
+        return
+    }
+    answer.ID = userID.(string)
     var existingquestion Question
     res := db2.Where("question_id= ?", answer.QuestionID).First(&existingquestion)
     if res.RowsAffected == 0 {
         c.JSON(http.StatusBadRequest, gin.H{
             "message": "未找到该问题",
         })
         return
     }
     if len(answer.Content) == 0 || len(answer.Content) > 1000 {
         c.JSON(http.StatusBadRequest, gin.H{
             "message": "回答请设置在1-1000字内",
         })
         return
     }
     db2.Create(&answer)
     c.JSON(http.StatusCreated, answer)
 }

Also, update the route to include JWTMiddleware:

-server.POST("/hdu.wiki/answers", postAnswer)
+server.POST("/hdu.wiki/answers", JWTMiddleware(), postAnswer)

Committable suggestion was skipped due to low confidence.

QA/main.go Outdated
Comment on lines 149 to 164
func postQuestion(c *gin.Context) {
var question Question
c.BindJSON(&question)
if len(question.Title) == 0 || len(question.Title) > 10 {
c.JSON(http.StatusBadRequest, gin.H{
"message": "标题请设置在1-10字内",
})
return
}
if len(question.Content) < 10 || len(question.Content) > 100 {
c.JSON(http.StatusBadRequest, gin.H{"error": "问题内容需要控制在10-100字内"})
return
}
db2.Create(&question)
c.JSON(http.StatusCreated, question)
}
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⚠️ Potential issue

Associate Questions with the Authenticated User

In the postQuestion function, the question.ID field (which represents the user ID) should be set to the ID of the authenticated user. This ensures that each question is correctly associated with the user who posted it. Currently, this association is missing.

Apply this diff to set the question.ID to the authenticated user's ID:

 func postQuestion(c *gin.Context) {
     var question Question
     c.BindJSON(&question)
+    userID, exists := c.Get("userID")
+    if !exists {
+        c.JSON(http.StatusUnauthorized, gin.H{"error": "User not authenticated"})
+        return
+    }
+    question.ID = userID.(string)
     if len(question.Title) == 0 || len(question.Title) > 10 {
         c.JSON(http.StatusBadRequest, gin.H{
             "message": "标题请设置在1-10字内",
         })
         return
     }
     if len(question.Content) < 10 || len(question.Content) > 100 {
         c.JSON(http.StatusBadRequest, gin.H{"error": "问题内容需要控制在10-100字内"})
         return
     }
     db2.Create(&question)
     c.JSON(http.StatusCreated, question)
 }

Also, ensure that the route is protected with JWTMiddleware to enforce authentication:

-server.POST("/hdu.wiki/question", postQuestion)
+server.POST("/hdu.wiki/question", JWTMiddleware(), postQuestion)

Committable suggestion was skipped due to low confidence.

QA/main.go Outdated
Comment on lines 190 to 198
func deleteQuestion(c *gin.Context) {
id, _ := strconv.Atoi(c.Param("id"))
result := db2.Delete(&Question{}, id)
if result.RowsAffected == 0 {
c.JSON(http.StatusNotFound, gin.H{"message": "这个问题不存在!"})
return
}
c.JSON(http.StatusOK, gin.H{"message": "这个问题已被删除"})
}
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⚠️ Potential issue

Restrict Question Deletion to the Owner

In the deleteQuestion function, any authenticated user can delete any question. To enhance security, only the user who posted the question should be allowed to delete it. Currently, this check is not implemented.

Apply this diff to verify question ownership before deletion:

 func deleteQuestion(c *gin.Context) {
     id, _ := strconv.Atoi(c.Param("id"))
+    userID, exists := c.Get("userID")
+    if !exists {
+        c.JSON(http.StatusUnauthorized, gin.H{"error": "User not authenticated"})
+        return
+    }
+    var question Question
+    result := db2.Where("question_id = ?", id).First(&question)
+    if result.RowsAffected == 0 {
+        c.JSON(http.StatusNotFound, gin.H{"message": "这个问题不存在!"})
+        return
+    }
+    if question.ID != userID.(string) {
+        c.JSON(http.StatusForbidden, gin.H{"error": "You are not authorized to delete this question"})
+        return
+    }
     db2.Delete(&question)
     c.JSON(http.StatusOK, gin.H{"message": "这个问题已被删除"})
 }

Also, ensure the route uses JWTMiddleware:

-server.DELETE("/hdu.wiki/questions/:id", deleteQuestion)
+server.DELETE("/hdu.wiki/questions/:id", JWTMiddleware(), deleteQuestion)

Committable suggestion was skipped due to low confidence.

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Actionable comments posted: 26

🧹 Outside diff range and nitpick comments (4)
QA/config/config.go (1)

1-31: Summary: Critical improvements needed for database configuration

This file introduces essential functionality for database connections, but several critical issues need to be addressed:

  1. Security: Remove hardcoded credentials and use environment variables or a secure configuration system.
  2. Architecture: Reconsider the need for two separate database connections or provide clear documentation justifying this design.
  3. Error Handling: Implement robust error handling and logging instead of panicking.
  4. Database Management: Consolidate migrations to ensure data consistency.

Addressing these issues is crucial for the security, reliability, and maintainability of your application. Please review and implement the suggested changes in the previous comments.

Consider implementing a more robust configuration management system that allows for different environments (development, staging, production) and secure credential management. This will improve the overall architecture and make your application more maintainable and secure.

QA/go.mod (1)

13-45: Indirect dependencies look appropriate

The indirect dependencies listed are automatically resolved by the Go module system and seem appropriate for the project's needs.

It's a good practice to periodically update these dependencies to ensure you're using the latest stable versions with bug fixes and security patches. You can use the following command to update all dependencies:

go get -u ./...

After running this command, review the changes and test your application thoroughly to ensure compatibility with the updated dependencies.

QA/middleware/middleware.go (1)

38-38: Ensure sensitive data is securely handled when setting user ID in context

Setting userID in the Gin context may expose sensitive information if not properly managed in subsequent handlers. Ensure that any handlers accessing userID from the context do not inadvertently expose it to clients or logs, and that proper data handling practices are followed.

QA/handlers/handlers.go (1)

43-46: Check database connection before proceeding

In the RegisterUser function, the database connection check occurs after processing the input. It would be more efficient to check the database connection before attempting to bind and validate the input.

Consider rearranging the code:

+    if config.DB1 == nil {
+        c.JSON(http.StatusInternalServerError, gin.H{"error": "Database connection is not initialized"})
+        return
+    }
     if err := c.ShouldBindJSON(&u); err != nil {
         c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid input"})
         return
     }
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 94a5fa1 and c4ce710.

⛔ Files ignored due to path filters (1)
  • QA/go.sum is excluded by !**/*.sum
📒 Files selected for processing (7)
  • QA/auth/auth.go (1 hunks)
  • QA/config/config.go (1 hunks)
  • QA/go.mod (1 hunks)
  • QA/handlers/handlers.go (1 hunks)
  • QA/main.go (1 hunks)
  • QA/middleware/middleware.go (1 hunks)
  • QA/models/models.go (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • QA/main.go
🧰 Additional context used
🔇 Additional comments (3)
QA/config/config.go (1)

1-8: LGTM: Package declaration and imports are appropriate.

The package name 'config' is suitable for a configuration file, and the imports are relevant for database operations using GORM with MySQL.

QA/go.mod (1)

5-11: Direct dependencies look good, consider checking for updates

The direct dependencies listed are appropriate for a web application with database interactions. However, it's a good practice to ensure you're using the latest stable versions of these libraries.

To check for any available updates, you can run:

Review the output and consider updating to the latest stable versions if any are available.

QA/handlers/handlers.go (1)

163-165: Verify safe parameter handling in SQL query

In the SearchQuestions function, the query parameter is used in the SQL LIKE clause. While GORM should handle parameterization safely, it's important to ensure that user input does not expose the application to SQL injection.

Confirm that GORM properly escapes the query parameter. If there's any doubt, consider using GORM's named parameter feature for added safety.

Comment on lines +3 to +8
type User struct {
Name string
StudentID string `gorm:"primaryKey"`
Password string
Salt string
}
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🛠️ Refactor suggestion

Consider enhancing security and adding field validations for the User struct.

While the overall structure is good, consider the following improvements:

  1. Password storage: Instead of storing the password as a string, consider using a byte slice ([]byte) to store the hashed password. This can help prevent accidental logging or exposure of the password in memory dumps.

  2. Field validations: Add validation tags (e.g., using the validator package) for the Name and StudentID fields to ensure data integrity.

  3. JSON tags: If you plan to use this struct for JSON serialization, consider adding JSON tags, omitting sensitive fields like Password and Salt.

Here's an example of how you could refactor the User struct:

type User struct {
    Name      string `json:"name" validate:"required,min=2,max=100"`
    StudentID string `json:"student_id" gorm:"primaryKey" validate:"required,min=5,max=20"`
    Password  []byte `json:"-"` // Omitted from JSON serialization
    Salt      string `json:"-"` // Omitted from JSON serialization
}

Remember to update any code that interacts with the Password field to handle it as a byte slice.

Comment on lines +9 to +15
type Question struct {
QuestionID int `json:"QuestionID" gorm:"primaryKey;AUTO_INCREMENT"`
Ask_userID string `json:"Ask_UserID"`
Title string `json:"title"`
Content string `json:"content"`
Answers []Answer `json:"answers" gorm:"foreignKey:QuestionID"`
}
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🛠️ Refactor suggestion

Improve consistency and add validations for the Question struct.

The Question struct is well-structured, but consider the following improvements:

  1. Naming consistency: Change Ask_userID to AskUserID to maintain camelCase convention.

  2. Field validations: Add validation tags for Title and Content fields to ensure data integrity.

  3. Relationship with User: Consider explicitly defining the relationship between Question and User using GORM tags.

Here's an example of how you could refactor the Question struct:

type Question struct {
    QuestionID int      `json:"questionID" gorm:"primaryKey;autoIncrement"`
    AskUserID  string   `json:"askUserID" gorm:"index"`
    Title      string   `json:"title" validate:"required,min=5,max=200"`
    Content    string   `json:"content" validate:"required,min=10"`
    Answers    []Answer `json:"answers" gorm:"foreignKey:QuestionID"`
    User       User     `json:"-" gorm:"foreignKey:AskUserID;references:StudentID"`
}

This refactoring improves naming consistency, adds validations, and explicitly defines the relationship with the User struct.

Comment on lines +17 to +21
type Answer struct {
Answer_userID string `json:"Answer_UserID"`
QuestionID int `json:"QuestionID"`
Content string `json:"content"`
}
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🛠️ Refactor suggestion

Enhance the Answer struct with explicit relationships and validations.

The Answer struct can be improved in several ways:

  1. Naming consistency: Change Answer_userID to AnswerUserID to maintain camelCase convention.

  2. Primary Key: Add a primary key field for the Answer struct.

  3. Relationships: Explicitly define relationships with User and Question using GORM tags.

  4. Validations: Add validation tags for the Content field.

Here's an example of how you could refactor the Answer struct:

type Answer struct {
    AnswerID     int    `json:"answerID" gorm:"primaryKey;autoIncrement"`
    AnswerUserID string `json:"answerUserID" gorm:"index"`
    QuestionID   int    `json:"questionID" gorm:"index"`
    Content      string `json:"content" validate:"required,min=10"`
    User         User   `json:"-" gorm:"foreignKey:AnswerUserID;references:StudentID"`
    Question     Question `json:"-" gorm:"foreignKey:QuestionID"`
}

This refactoring adds a primary key, improves naming consistency, explicitly defines relationships, and adds a basic validation for the Content field.

Comment on lines +1 to +21
package models

type User struct {
Name string
StudentID string `gorm:"primaryKey"`
Password string
Salt string
}
type Question struct {
QuestionID int `json:"QuestionID" gorm:"primaryKey;AUTO_INCREMENT"`
Ask_userID string `json:"Ask_UserID"`
Title string `json:"title"`
Content string `json:"content"`
Answers []Answer `json:"answers" gorm:"foreignKey:QuestionID"`
}

type Answer struct {
Answer_userID string `json:"Answer_UserID"`
QuestionID int `json:"QuestionID"`
Content string `json:"content"`
}
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🛠️ Refactor suggestion

Consider adding timestamps and enhancing relationships between models.

While the current structure provides a solid foundation for a Q&A system, consider the following overall improvements:

  1. Timestamps: Add CreatedAt and UpdatedAt fields to the Question and Answer structs. This will allow for tracking when questions and answers were posted or modified.

  2. Consistent relationship definitions: Ensure that all relationships between structs are explicitly defined using GORM tags.

  3. Common fields: Consider creating a base struct with common fields (like timestamps) that can be embedded in other structs.

Here's an example of how you could implement these suggestions:

package models

import "time"

type BaseModel struct {
    CreatedAt time.Time `json:"createdAt"`
    UpdatedAt time.Time `json:"updatedAt"`
}

type User struct {
    Name      string `json:"name" validate:"required,min=2,max=100"`
    StudentID string `json:"studentID" gorm:"primaryKey" validate:"required,min=5,max=20"`
    Password  []byte `json:"-"`
    Salt      string `json:"-"`
    BaseModel
}

type Question struct {
    QuestionID int      `json:"questionID" gorm:"primaryKey;autoIncrement"`
    AskUserID  string   `json:"askUserID" gorm:"index"`
    Title      string   `json:"title" validate:"required,min=5,max=200"`
    Content    string   `json:"content" validate:"required,min=10"`
    Answers    []Answer `json:"answers" gorm:"foreignKey:QuestionID"`
    User       User     `json:"-" gorm:"foreignKey:AskUserID;references:StudentID"`
    BaseModel
}

type Answer struct {
    AnswerID     int      `json:"answerID" gorm:"primaryKey;autoIncrement"`
    AnswerUserID string   `json:"answerUserID" gorm:"index"`
    QuestionID   int      `json:"questionID" gorm:"index"`
    Content      string   `json:"content" validate:"required,min=10"`
    User         User     `json:"-" gorm:"foreignKey:AnswerUserID;references:StudentID"`
    Question     Question `json:"-" gorm:"foreignKey:QuestionID"`
    BaseModel
}

This refactoring enhances the relationships between models, adds timestamp tracking, and improves overall consistency.

Comment on lines +10 to +12
var DB1 *gorm.DB
var DB2 *gorm.DB
var err error
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🛠️ Refactor suggestion

Consider refactoring global variables for better design and concurrency.

While global variables for database connections are common, they may lead to issues in concurrent environments. Consider the following suggestions:

  1. Instead of global variables, consider using a struct to encapsulate the database connections and passing it where needed.
  2. The use of two separate database connections (DB1 and DB2) seems unusual. Consider if a single connection could suffice, or if a more scalable approach is needed.
  3. The global 'err' variable could lead to race conditions in concurrent operations. It's better to handle errors locally within functions.

Here's a suggested refactoring:

type DBConnections struct {
    DB1 *gorm.DB
    DB2 *gorm.DB
}

func NewDBConnections() (*DBConnections, error) {
    // Initialize and return the connections
}

This approach encapsulates the connections and allows for better error handling and testability.

// PostAnswer 发布回答的处理器函数
func PostAnswer(c *gin.Context) {
var answer models.Answer
c.BindJSON(&answer)
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⚠️ Potential issue

Handle error returned by BindJSON

In the PostAnswer function, the error from c.BindJSON(&answer) is not checked. Failure to handle this error can lead to unexpected behavior.

Modify the code to handle the error:

-func PostAnswer(c *gin.Context) {
-    var answer models.Answer
-    c.BindJSON(&answer)
+func PostAnswer(c *gin.Context) {
+    var answer models.Answer
+    if err := c.ShouldBindJSON(&answer); err != nil {
+        c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid input"})
+        return
+    }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
c.BindJSON(&answer)
func PostAnswer(c *gin.Context) {
var answer models.Answer
if err := c.ShouldBindJSON(&answer); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid input"})
return
}

"strconv"
)

// Yes 验证注册时用户名学号密码的合理性
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⚠️ Potential issue

Adjust function comment to match function name

The comment for the yes function starts with // Yes, suggesting an exported function. Since the function is unexported (starts with a lowercase letter), the comment should reflect the actual function name to follow Go conventions.

Update the comment to:

-// Yes 验证注册时用户名学号密码的合理性
+// yes 验证注册时用户名学号密码的合理性

If you rename the function as suggested previously, adjust the comment accordingly:

-// Yes 验证注册时用户名学号密码的合理性
+// validateUserInput 验证注册时用户名学号密码的合理性
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
// Yes 验证注册时用户名学号密码的合理性
// yes 验证注册时用户名学号密码的合理性
```
Note: I've chosen the first suggestion that keeps the function name as "yes" and only adjusts the comment. If the function name is indeed changed to "validateUserInput" as mentioned in the review comment, the alternative suggestion would be more appropriate:
```suggestion
// validateUserInput 验证注册时用户名学号密码的合理性

// LoginUser 用户登录的处理器函数
func LoginUser(c *gin.Context) {
var u models.User
c.BindJSON(&u)
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⚠️ Potential issue

Handle error returned by BindJSON

In the LoginUser function, the error returned by c.BindJSON(&u) is not checked. Ignoring this error can lead to unexpected behavior if the JSON binding fails.

Modify the code to handle the error:

-func LoginUser(c *gin.Context) {
-    var u models.User
-    c.BindJSON(&u)
+func LoginUser(c *gin.Context) {
+    var u models.User
+    if err := c.ShouldBindJSON(&u); err != nil {
+        c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid input"})
+        return
+    }

Committable suggestion was skipped due to low confidence.

// PostQuestion 发布问题的处理器函数
func PostQuestion(c *gin.Context) {
var question models.Question
c.BindJSON(&question)
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⚠️ Potential issue

Handle error returned by BindJSON

In the PostQuestion function, the error from c.BindJSON(&question) is not checked. This could cause issues if the JSON binding fails.

Update the code to handle the error:

-func PostQuestion(c *gin.Context) {
-    var question models.Question
-    c.BindJSON(&question)
+func PostQuestion(c *gin.Context) {
+    var question models.Question
+    if err := c.ShouldBindJSON(&question); err != nil {
+        c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid input"})
+        return
+    }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
c.BindJSON(&question)
func PostQuestion(c *gin.Context) {
var question models.Question
if err := c.ShouldBindJSON(&question); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid input"})
return
}

Comment on lines +13 to +37
func yes(c *gin.Context, u models.User) bool {
const (
minNameLen = 2
maxNameLen = 5
StudentIdLen = 8
minPasswordLen = 6
maxPasswordLen = 20
)
if len(u.Name) < minNameLen || len(u.Name) > maxNameLen {
c.JSON(http.StatusBadRequest, gin.H{"error": "用户名请控制在2-5字内"})
return false
}

if len(u.StudentID) != StudentIdLen {
c.JSON(http.StatusBadRequest, gin.H{"error": "请使用你本人的学号"})
return false
}

if len(u.Password) < minPasswordLen || len(u.Password) > maxPasswordLen {
c.JSON(http.StatusBadRequest, gin.H{"error": "密码请控制在6-20字内"})
return false
}

return true
}
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🛠️ Refactor suggestion

Rename function yes to a more descriptive name

The function yes is responsible for validating user input during registration. The name yes is not descriptive and may lead to confusion. Consider renaming it to something like validateUserInput or validateRegistrationInput to improve code readability and maintainability.

Apply this diff to rename the function and update its usages:

-func yes(c *gin.Context, u models.User) bool {
+func validateUserInput(c *gin.Context, u models.User) bool {
     // function implementation
 }
 
-    if !yes(c, u) {
+    if !validateUserInput(c, u) {
         return
     }

Committable suggestion was skipped due to low confidence.

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Actionable comments posted: 2

🧹 Outside diff range and nitpick comments (1)
QA/auth/auth.go (1)

37-53: JWT generation looks good with room for minor improvement

The JWT generation logic is implemented correctly. It sets appropriate claims including expiration time and uses the HS256 algorithm.

Consider adding a unique identifier to the token claims, such as a UUID or the user's ID, to enhance security and make token revocation easier if needed:

 claims := MyClaims{
 	Username: u.Name,
 	StandardClaims: jwt.StandardClaims{
+		Id:        generateUniqueID(), // Add a unique identifier
 		NotBefore: time.Now().Unix() - 60,
 		ExpiresAt: time.Now().Unix() + 60*60*24*7,
 		Issuer:    u.Name,
 	},
 }

You'll need to implement the generateUniqueID() function, which could use a UUID library or any other method to generate a unique identifier.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between c4ce710 and 1aa7f2e.

📒 Files selected for processing (2)
  • QA/auth/auth.go (1 hunks)
  • QA/middleware/middleware.go (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • QA/middleware/middleware.go
🧰 Additional context used
🔇 Additional comments (2)
QA/auth/auth.go (2)

29-34: ⚠️ Potential issue

Use a secure password hashing algorithm

The current implementation uses SHA-256 for password hashing, which is not considered secure for this purpose. SHA-256 is designed to be fast, making it vulnerable to brute-force attacks. It's recommended to use a dedicated password hashing function like bcrypt, which is designed to be computationally expensive and includes salt management.

Consider replacing the current implementation with bcrypt:

+import "golang.org/x/crypto/bcrypt"

-func HashPassword(password, salt string) string {
-	saltedPassword := password + salt
-	hash := sha256.New()
-	hash.Write([]byte(saltedPassword))
-	return hex.EncodeToString(hash.Sum(nil))
+func HashPassword(password string) (string, error) {
+	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return "", fmt.Errorf("failed to hash password: %w", err)
+	}
+	return string(hashedPassword), nil
+}

+func ComparePasswords(hashedPassword, password string) error {
+	return bcrypt.CompareHashAndPassword([]byte(hashedPassword), []byte(password))
+}

This change eliminates the need for manual salt management as bcrypt handles it internally. Remember to update all calls to HashPassword() to handle the returned error and use ComparePasswords() for password verification.

Likely invalid or redundant comment.


16-22: ⚠️ Potential issue

Improve error handling in GenerateSalt function

The current implementation panics if there's an error generating the salt. This can lead to application crashes in production. It's better to return the error and let the caller decide how to handle it.

Apply this change to improve error handling:

-func GenerateSalt() string {
+func GenerateSalt() (string, error) {
 	bytes := make([]byte, 16)
 	if _, err := rand.Read(bytes); err != nil {
-		panic("Error generating salt")
+		return "", fmt.Errorf("error generating salt: %w", err)
 	}
-	return hex.EncodeToString(bytes)
+	return hex.EncodeToString(bytes), nil
 }

Remember to update all calls to GenerateSalt() to handle the returned error.

Likely invalid or redundant comment.

"crypto/sha256"
"encoding/hex"
"fmt"
"github.com/dgrijalva/jwt-go"
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⚠️ Potential issue

Update JWT package and secure the JWT key

  1. The github.com/dgrijalva/jwt-go package is deprecated and has known vulnerabilities. Consider switching to the maintained fork github.com/golang-jwt/jwt/v5.

  2. Hardcoding the JWT key in the source code is a security risk. It's recommended to load the key from a secure source, such as an environment variable or a configuration file.

Apply these changes:

  1. Update the JWT package:
-import "github.com/dgrijalva/jwt-go"
+import "github.com/golang-jwt/jwt/v5"
  1. Use an environment variable for the JWT key:
-var jwtKey = []byte("tobeempireofhduhelp")
+var jwtKey = []byte(os.Getenv("JWT_SECRET_KEY"))

Don't forget to import the os package:

 import (
+	"os"
 	// other imports...
 )

Ensure to set the JWT_SECRET_KEY environment variable in your deployment environment.

Also applies to: 13-13

Comment on lines +54 to +70
func AuthenticateToken(tokenString string) (*jwt.Token, error) {
token, err := jwt.ParseWithClaims(tokenString, &MyClaims{}, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
}
return jwtKey, nil
})
if err != nil {
return nil, err
}
if claims, ok := token.Claims.(*MyClaims); ok && token.Valid {
fmt.Println(claims.Username)
return token, nil
} else {
return nil, fmt.Errorf("invalid token")
}
}
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⚠️ Potential issue

Enhance token authentication security and error handling

The token authentication logic is generally correct, but there are a few areas for improvement:

  1. Returning the full token object might expose sensitive information.
  2. The error handling could be more specific to avoid leaking information about the token's validity.
  3. Printing the username to stdout (line 65) might be a security risk in production.

Consider applying these changes:

-func AuthenticateToken(tokenString string) (*jwt.Token, error) {
+func AuthenticateToken(tokenString string) (*MyClaims, error) {
 	token, err := jwt.ParseWithClaims(tokenString, &MyClaims{}, func(token *jwt.Token) (interface{}, error) {
 		if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
 			return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
 		}
 		return jwtKey, nil
 	})
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("failed to parse token: %w", err)
 	}
 	if claims, ok := token.Claims.(*MyClaims); ok && token.Valid {
-		fmt.Println(claims.Username)
-		return token, nil
+		return claims, nil
 	} else {
 		return nil, fmt.Errorf("invalid token")
 	}
 }

These changes:

  1. Return only the claims instead of the full token.
  2. Provide a more generic error message when parsing fails.
  3. Remove the print statement that could leak information.

Remember to update any code that calls AuthenticateToken() to work with the returned claims instead of the full token.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
func AuthenticateToken(tokenString string) (*jwt.Token, error) {
token, err := jwt.ParseWithClaims(tokenString, &MyClaims{}, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
}
return jwtKey, nil
})
if err != nil {
return nil, err
}
if claims, ok := token.Claims.(*MyClaims); ok && token.Valid {
fmt.Println(claims.Username)
return token, nil
} else {
return nil, fmt.Errorf("invalid token")
}
}
func AuthenticateToken(tokenString string) (*MyClaims, error) {
token, err := jwt.ParseWithClaims(tokenString, &MyClaims{}, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
}
return jwtKey, nil
})
if err != nil {
return nil, fmt.Errorf("failed to parse token: %w", err)
}
if claims, ok := token.Claims.(*MyClaims); ok && token.Valid {
return claims, nil
} else {
return nil, fmt.Errorf("invalid token")
}
}

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