Solution: Gravatar profile pictures, Google fonts, and Google ajax cannot be used

Gravatar portraits are occasionally inaccessible in mainland China, and there are also a variety of google services that cannot be used. It is intolerable for "a programmer.
So he got a solution: Use nginx Reverse proxy Gravatar avatar, Google fonts, and Google ajax.
Before anti-proxy, make sure that nginx has installed the proxy_cache module and configured the path and parameters.

The following is the configuration code of the green onion in nginx. conf:

Http
{
# Other code ...#

Proxy_connect_timeout 5;
Proxy_read_timeout 60;
Proxy_send_timeout 5;
Proxy_buffer_size 16 k;
Proxy_buffers 4 64 k;
Proxy_busy_buffers_size 128 k;
Proxy_temp_file_write_size 128 k;
Proxy_temp_path/tmp/nginx_proxy_temp 1 2; # temporary file directory

# Other code ...#
}

Then there is a separate configuration file gravatar. conf, with # you need to modify it accordingly:

Proxy_cache_path/tmp/nginx_proxy_cache/gravatar levels = keys_zone = GRAVATAR: 32 m inactive = 7d max_size = 1g; # cache path

Server {
Listen 80;
Server_name gravatar.yuxiaoxi.com; # bound domain name

Location /{
Proxy_cache GRAVATAR;
Proxy_cache_key "$ scheme: // $ host $ request_uri ";
Proxy_cache_valid 200 304 7d;
Proxy_cache_valid 301 3d;
Proxy_cache_valid any 10 s;

Proxy_pass http://0.gravatar.com; # reverse domain name
Proxy_pass_header Server;
Proxy_redirect off;
Proxy_set_header Host 0.gravatar.com;
Proxy_set_header X-Real-IP $ remote_addr;
Proxy_set_header X-Scheme $ scheme;
Proxy_set_header X-Forwarded-For $ proxy_add_x_forwarded_for;
    }

Location ~ /Purge (/.*){
Allow 127.0.0.1;
Deny all;
Proxy_cache_purge GRAVATAR "$ scheme: // $ host $1 ";
    }

Location ~ * \. (Ftpquota | htaccess | htpasswd | asp | aspx | jsp | asa | mdb )? $ {
Deny all;
    }

Access_log/home/wwwroot/gravatar/log/access. log combined; # access_log end
Error_log/home/wwwroot/gravatar/log/error. log crit; # error_log end
}

Server
{
Listen 443 ssl spdy;
Server_name gravatar.yuxiaoxi.com; # bound domain name

Ssl on;
Ssl_certificate/usr/local/ssl/yuxiaoxi. crt; # ssl certificate
Ssl_certificate_key/usr/local/ssl/yuxiaoxi. pem; # ssl key
Ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
Ssl_ciphers 'ecdhe-RSA-AES128-GCM-SHA256: ECDHE-ECDSA-AES128-GCM-SHA256: ECDHE-RSA-AES256-GCM-SHA384: ECDHE-ECDSA-AES256-GCM-SHA384: DHE-RSA-AES128-GCM-SHA256: kEDH + AESGCM: DHE-DSS-AES128-GCM-SHA256: ECDHE-RSA-AES128-SHA256: ECDHE-ECDSA-AES128-SHA256: ECDHE-RSA-AES128-SHA: ECDHE-ECDSA-AES128-SHA: ECDHE-RSA-AES256-SHA384: ECDHE-ECDSA-AES256-SHA384: ECDHE-RSA-AES256-SHA: ECDHE-ECDSA-AES256-SHA: DHE-RSA-AES128-SHA25: 6: DHE-RSA-AES128-SHA: DHE-DSS-AES128-SHA256: DHE-RSA-AES256-SHA256: DHE-DSS-AES256-SHA: DHE-RSA-AES256-SHA: AES128-GCM-SHA256: AES128: AES256: AES :! ANULL :! ENULL :! EXPORT :! DES :! RC4 :! MD5 :! PSK ';
Ssl_prefer_server_ciphers on;
Ssl_session_timeout 5 m;
Ssl_session_cache shared: SSL: 10 m;
Ssl_trusted_certificate/usr/local/ssl/ca. crt; # CA root certificate

Location /{
Proxy_cache GRAVATAR;
Proxy_cache_key "$ scheme: // $ host $ request_uri ";
Proxy_cache_valid 200 304 7d;
Proxy_cache_valid 301 3d;
Proxy_cache_valid any 10 s;

Proxy_pass http://0.gravatar.com; # reverse domain name
Proxy_pass_header Server;
Proxy_redirect off;
Proxy_set_header Host 0.gravatar.com;
Proxy_set_header X-Real-IP $ remote_addr;
Proxy_set_header X-Scheme $ scheme;
Proxy_set_header X-Forwarded-For $ proxy_add_x_forwarded_for;
    }

Location ~ /Purge (/.*){
Allow 127.0.0.1;
Deny all;
Proxy_cache_purge GRAVATAR "$ scheme: // $ host $1 ";
    }

Location ~ * \. (Ftpquota | htaccess | htpasswd | asp | aspx | jsp | asa | mdb )? $ {
Deny all;
    }

Access_log/home/wwwroot/gravatar/log/access_ssl.log combined; # access_log end
Error_log/home/wwwroot/gravatar/log/error_ssl.log crit; # error_log end
}

Google fonts is similar to Google ajax configuration, so I will not post it. Please check the download link at the end of the article.
You can also use the green onion directly to support SSL ~ :

Replace www.gravatar.com, cn.gravatar.com, 0.gravatar.com, 1.gravatar.com, and 2.gravatar.com with gravatar.yuxiaoxi.com;
Replace fonts.gstatic.com with fonts.yuxiaoxi.com;
Replace ajax.googleapis.com with ajax.yuxiaoxi.com;

BYMT topic User modification method:

1. Open the functions. Php file in the/wp-content/themes/BYMT/directory.
2. Search for bymt_get_avatar and replace gravatar.duoshuo.com with gravatar.yuxiaoxi.com.
3. Search for bymt_avatar, start from // getting the avatar and cache, and replace it:
// Obtain the content through curl
Function bymt_curl_contents ($ url ){
$ Ch = curl_init ();
Curl_setopt ($ ch, CURLOPT_SSL_VERIFYPEER, FALSE );
Curl_setopt ($ ch, CURLOPT_RETURNTRANSFER, TRUE );
Curl_setopt ($ ch, CURLOPT_URL, $ url );
$ Response = curl_exec ($ ch );
Curl_close ($ ch );

/** Request is blank **/
If (empty ($ response )){
$ Response = '';
    }

Return $ response;
}

// Write an object
Function bymt_write_file ($ path, $ data, $ mode = 'WB '){
If (! $ Fp = @ fopen ($ path, $ mode )){
Return false;
    }

Flock ($ fp, LOCK_EX );
Fwrite ($ fp, $ data );
Flock ($ fp, LOCK_UN );
Fclose ($ fp );

Return true;
}

// Get the avatar and cache
Function bymt_avatar ($ email, $ size = '50', $ time = '000000') {// Default size: 50px valid for 14 days
If (! Is_numeric ($ size) $ size = '50 ';
If (! Is_numeric ($ time) $ time = '000000 ';
If (bymt_c ('Avatar _ cache ')){
$ Mailhash = md5 (strtolower (trim ($ email )));
$ Default = urlencode (get_option ('Avatar _ default '));
$ Rating = get_option ('Avatar _ rating ');
$ Ava_path = ABSPATH. 'Avatar/'. $ mailhash.'-'. $ size. '.jpg ';
If (! File_exists ($ ava_path) | filesize ($ ava_path) <1 | (time ()-filemtime ($ ava_path)> $ time ){
$ Ava_url = 'http: // gravatar.yuxiaoxi.com/avatar/'.w.mailhash .'? S = '. $ size.' & d = '. $ default.' & r = '. $ rating;
$ Avadata = bymt_curl_contents ($ ava_url );
Bymt_write_file ($ ava_path, $ avadata );
} Else {
$ Ava_url = esc_url (home_url ('/avatar/'). $ mailhash. '-'. $ size. '.jpg ';
        }
Return ' ';
} Else {
Return get_avatar ($ email, $ size );
    }
}

4. Open/wp-shortdes/script-loader.php, search ajax.googleapis.com with ajax.yuxiaoxi.com, search fonts.gstatic.com with fonts.yuxiaoxi.com;
Work done!