curl：配置自定义错误页面时最多遵循 (47) (50) 个重定向

问题描述 投票：0回答：1

所以首先我想解释一下我目前的情况以及我想要实现的目标：

我想制作一个以 

code
作为参数的 php 文件，然后处理每个传递的错误代码，遗憾的是这并没有按预期工作，因为它总是返回错误代码为 
0
的自定义页面，即使实际的错误代码是不同（403 或 404）。

server {
    listen 80;
    server_name genefit.cc www.genefit.cc;
    root /var/www/html;
    index index.htm index.html index.php;

    charset utf-8;

    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt { access_log off; log_not_found off; }

    access_log off;
    error_log /var/log/nginx/error.log error;

    sendfile off;

    client_max_body_size 100m;

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass genefit.cc:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_intercept_errors on;
        fastcgi_buffer_size 16k;
        fastcgi_buffers 4 16k;
    }

    location ~ /\.ht {
        deny all;
    }

    # Error page configuration
    error_page 400 401 402 403 404 500 502 503 504 /error.php?code=$request_uri;


    location ~ /error.php$ {
        root /var/www/html;
        try_files $uri $uri/ =404;
        internal;
        fastcgi_pass genefit.cc:9000;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root/error.php;
        fastcgi_param QUERY_STRING $query_string;
    }
}

<?php
$status_code = isset($_GET['code']) ? intval($_GET['code']) : 500;
http_response_code($status_code);
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Error</title>
    <style>
        body {
            text-align: center;
            font-family: Arial, sans-serif;
            color: red;
        }
        .container {
            margin-top: 50px;
        }
        img {
            max-width: 100%;
            height: auto;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Error <?php echo $status_code; ?></h1>
        <p>Something went wrong. Please try again later.</p>
        <img src="https://http.cat/<?php echo $status_code; ?>" alt="Error <?php echo $status_code; ?>">
    </div>
</body>
</html>

========

在尝试解决上述问题大约1小时后，我放弃了并开始在错误目录中制作单独的php文件，例如

error/403.php
和
error/404.php
。这导致了本文标题中提到的太多重定向错误：

server {
    listen 80;
    server_name genefit.cc www.genefit.cc;
    root /var/www/html;
    index index.htm index.html index.php;

    charset utf-8;

    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt { access_log off; log_not_found off; }

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    sendfile off;

    client_max_body_size 100m;

    location ~ /\.ht {
        deny all;
    }

    # PHP files handling
    location ~ \.php$ {
        include fastcgi_params;

        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass genefit.cc:9000;
        fastcgi_index index.php;
        fastcgi_intercept_errors on;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_buffer_size 16k;
        fastcgi_buffers 4 16k;
    }

    # Error pages
    error_page 400 /error/400.php;
    error_page 401 /error/401.php;
    error_page 402 /error/402.php;
    error_page 403 /error/403.php;
    error_page 404 /error/404.php;
    error_page 500 /error/500.php;
    error_page 502 /error/502.php;
    error_page 503 /error/503.php;
    error_page 504 /error/504.php;
    
    location / {
        try_files $uri $uri/ /error/404.php;
    }

    # Serve error pages from the /error/ directory
    location /error/ {
        internal;
        root /var/www/html/;
        alias /var/www/html/error/;
        try_files $uri $uri/ =404;

        # PHP files handling
        location ~ \.php$ {
            include snippets/fastcgi-php.conf;
            fastcgi_pass genefit.cc:9000;
            fastcgi_intercept_errors off;        
        }
    }
}

<?php
// Define the static variable for the error code
$error_code = 404;

// Set the HTTP response code
http_response_code($error_code);
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Error <?php echo $error_code; ?></title>
    <style>
        body {
            text-align: center;
            font-family: Arial, sans-serif;
            color: red;
        }
        .container {
            margin-top: 50px;
        }
        img {
            max-width: 100%;
            height: auto;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Error <?php echo $error_code; ?></h1>
        <p>Page not found. Please check the URL or try again later.</p>
        <img src="https://http.cat/<?php echo $error_code; ?>" alt="Error <?php echo $error_code; ?>">
    </div>
</body>
</html>
php docker nginx error-handling containers
1个回答
0
投票

看看你问题的第二部分......

您有 

fastcgi_intercept_errors on;
，这可能是处理其他 PHP 脚本中的错误所必需的。

但是，您的“错误”处理脚本还将 HTTP 响应代码设置为“200 OK”以外的其他代码。这可能是重定向循环的原因。

我说“可能是”是因为 Nginx 通常会避免 

error_page
处理，当它当前正在处理 
error_page
时。

如果这是问题所在，您可以创建另一个位置块来处理“错误”脚本。

例如：

location ~ ^/error/.*\.php$ {
    include fastcgi_params;

    fastcgi_pass genefit.cc:9000;
    fastcgi_param SCRIPT_FILENAME $request_filename;
}

将此块放置在上方

location ~ \.php$
，因为正则表达式位置将按顺序求值，直到找到匹配项。

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