WeChat public platform developer center security mode message body encryption and decryption implementation, public developers

Keywords: WeChat public platform message body signature message body encryption and decryption EncodingAESKey security mode

Original text http://www.cnblogs.com/txw1958/p/weixin-aes-encrypt-decrypt.html

1. Message body encryption and decryption

When configuring the server, the WeChat public platform provides three encryption and decryption modes for developers to choose, namely plaintext mode, compatibility mode, and security mode. Before selecting compatibility mode and security mode, you need to fill in the message addition in the developer center Decryption key EncodingAESKey.

Clear text mode: Maintain the existing mode, no new encryption and decryption features are adapted, message body is sent and received in plain text, the default setting is plain text mode
Compatibility mode: The content of messages sent by the public platform will include both plain text and cipher text, and the length of the message packet will be increased to about 3 times the original; the public account can reply in plain text or cipher text, without affecting the existing message sending and receiving; developers can Debugging in this mode
Safe mode (recommended): The content of the message body sent by the public platform only contains ciphertext, and the message body replied by the public account is also ciphertext. It is recommended that developers use this mode to send and receive messages after successful debugging

What is EncodingAESKey?

The WeChat public platform uses the AES symmetric encryption algorithm to encrypt the message body pushed to the public account. EncodingAESKey is the secret key used for encryption. The public account uses this secret key to decrypt the received ciphertext message body, and the reply message body is also encrypted with this secret key. For the principle of AES symmetric encryption algorithm, please refer to http://www.cnblogs.com/txw1958/p/aes.html

For detailed technical solutions for encryption and decryption, please refer to the official document http://mp.weixin.qq.com/wiki/index.php?title=%E6%8A%80%E6%9C%AF%E6%96% B9%E6%A1%88

Applicable public account types

Verified subscription number
Service ID

cannot be used for unauthenticated subscription accounts because they do not have the appid parameter

2. Development, implementation and data analysis

1. Configuration

Assume that the URL in this development configuration is

http:<span>//</span><span>www.fangbei.org/index.php</span>

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The following three parameters need to be configured in the interface program

<span>/*</span><span>
    方倍工作室 http://www.cnblogs.com/txw1958/
    CopyRight 2014 All Rights Reserved
</span><span>*/</span>
<span>define</span>("TOKEN", "weixin"<span>);
</span><span>define</span>("AppID", "wxbad0b45542aa0b5e"<span>);
</span><span>define</span>("EncodingAESKey", "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFG"<span>);
</span><span>require_once</span>('wxBizMsgCrypt.php');

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2. Encryption and decryption implementation

When a user sends a message to a public account, the WeChat public account will bring signature, timestamp, nonce, encrypt_type, msg_signature and other parameters in the URL, as shown below

http:<span>//</span><span>www.fangbei.org/index.php?signature=35703636de2f9df2a77a662b68e521ce17c34db4&timestamp=1414243737&nonce=1792106704&encrypt_type=aes&msg_signature=6147984331daf7a1a9eed6e0ec3ba69055256154</span>

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At the same time, push the following XML message to the interface, which is an encrypted message

<span><</span><span>xml</span><span>></span>
    <span><</span><span>ToUserName</span><span>></span><span><![CDATA[</span><span>gh_680bdefc8c5d</span><span>]]></span><span></</span><span>ToUserName</span><span>></span>
    <span><</span><span>Encrypt</span><span>></span><span><![CDATA[</span><span>MNn4+jJ/VsFh2gUyKAaOJArwEVYCvVmyN0iXzNarP3O6vXzK62ft1/KG2/XPZ4y5bPWU/jfIfQxODRQ7sLkUsrDRqsWimuhIT8Eq+w4E/28m+XDAQKEOjWTQIOp1p6kNsIV1DdC3B+AtcKcKSNAeJDr7x7GHLx5DZYK09qQsYDOjP6R5NqebFjKt/NpEl/GU3gWFwG8LCtRNuIYdK5axbFSfmXbh5CZ6Bk5wSwj5fu5aS90cMAgUhGsxrxZTY562QR6c+3ydXxb+GHI5w+qA+eqJjrQqR7u5hS+1x5sEsA7vS+bZ5LYAR3+PZ243avQkGllQ+rg7a6TeSGDxxhvLw+mxxinyk88BNHkJnyK//hM1k9PuvuLAASdaud4vzRQlAmnYOslZl8CN7gjCjV41skUTZv3wwGPxvEqtm/nf5fQ=</span><span>]]></span><span></</span><span>Encrypt</span><span>></span>
<span></</span><span>xml</span><span>></span>

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At this time, the program needs to obtain the following parameters from the url

<span>$timestamp</span>  = <span>$_GET</span>['timestamp'<span>];
</span><span>$nonce</span> = <span>$_GET</span>["nonce"<span>];
</span><span>$msg_signature</span>  = <span>$_GET</span>['msg_signature'<span>];
</span><span>$encrypt_type</span> = <span>$_GET</span>['encrypt_type'];

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These parameters will be used in the encryption and decryption process

After receiving the message, first decrypt it. Part of the decryption code is as follows

<span>$postStr</span> = <span>$GLOBALS</span>["HTTP_RAW_POST_DATA"<span>];
</span><span>if</span> (<span>$encrypt_type</span> == 'aes'<span>){
    </span><span>$pc</span> = <span>new</span> WXBizMsgCrypt(TOKEN, EncodingAESKey,<span> AppID);                
    </span><span>$this</span>->logger(" D \r\n".<span>$postStr</span><span>);
    </span><span>$decryptMsg</span> = "";  <span>//</span><span>解密后的明文</span>
    <span>$errCode</span> = <span>$pc</span>->DecryptMsg(<span>$msg_signature</span>, <span>$timestamp</span>, <span>$nonce</span>, <span>$postStr</span>, <span>$decryptMsg</span><span>);
    </span><span>$postStr</span> = <span>$decryptMsg</span><span>;
}</span>

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After decryption is completed, the decrypted content is returned to $postStr. This is to ensure that the decrypted content in the message is unified with the message in plaintext mode to facilitate subsequent processing. The decrypted XML is as follows

<span><</span><span>xml</span><span>></span>
    <span><</span><span>ToUserName</span><span>></span><span><![CDATA[</span><span>gh_680bdefc8c5d</span><span>]]></span><span></</span><span>ToUserName</span><span>></span>
    <span><</span><span>FromUserName</span><span>></span><span><![CDATA[</span><span>oIDrpjpQ8j8mBuQ8nM26HWzNEZgg</span><span>]]></span><span></</span><span>FromUserName</span><span>></span>
    <span><</span><span>CreateTime</span><span>></span>1414243737<span></</span><span>CreateTime</span><span>></span>
    <span><</span><span>MsgType</span><span>></span><span><![CDATA[</span><span>text</span><span>]]></span><span></</span><span>MsgType</span><span>></span>
    <span><</span><span>Content</span><span>></span><span><![CDATA[</span><span>?</span><span>]]></span><span></</span><span>Content</span><span>></span>
    <span><</span><span>MsgId</span><span>></span>6074130599188426998<span></</span><span>MsgId</span><span>></span>
<span></</span><span>xml</span><span>></span>

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Process the message in your own original code. After completion, the message to be replied is as follows

<span><</span><span>xml</span><span>></span>
    <span><</span><span>ToUserName</span><span>></span><span><![CDATA[</span><span>oIDrpjpQ8j8mBuQ8nM26HWzNEZgg</span><span>]]></span><span></</span><span>ToUserName</span><span>></span>
    <span><</span><span>FromUserName</span><span>></span><span><![CDATA[</span><span>gh_680bdefc8c5d</span><span>]]></span><span></</span><span>FromUserName</span><span>></span>
    <span><</span><span>CreateTime</span><span>></span>1414243733<span></</span><span>CreateTime</span><span>></span>
    <span><</span><span>MsgType</span><span>></span><span><![CDATA[</span><span>text</span><span>]]></span><span></</span><span>MsgType</span><span>></span>
    <span><</span><span>Content</span><span>></span><span><![CDATA[</span><span>2014-10-25 21:28:53
技术支持 方倍工作室
http://www.fangbei.org/</span><span>]]></span><span></</span><span>Content</span><span>></span>
<span></</span><span>xml</span><span>></span>

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Encrypt the above message and return it to the WeChat public account

<span>//</span><span>加密</span>
<span>if</span> (<span>$encrypt_type</span> == 'aes'<span>){
    </span><span>$encryptMsg</span> = ''; <span>//</span><span>加密后的密文</span>
    <span>$errCode</span> = <span>$pc</span>->encryptMsg(<span>$result</span>, <span>$timeStamp</span>, <span>$nonce</span>, <span>$encryptMsg</span><span>);
    </span><span>$result</span> = <span>$encryptMsg</span><span>;
    </span><span>$this</span>->logger(" E \r\n".<span>$result</span><span>);
}</span>

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The encrypted content is as follows

<span><</span><span>xml</span><span>></span>
    <span><</span><span>Encrypt</span><span>></span><span><![CDATA[</span><span>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</span><span>]]></span><span></</span><span>Encrypt</span><span>></span>
    <span><</span><span>MsgSignature</span><span>></span><span><![CDATA[</span><span>6c46904dc1f58b2ddf2dd0399f1c6cf41f33ecb9</span><span>]]></span><span></</span><span>MsgSignature</span><span>></span>
    <span><</span><span>TimeStamp</span><span>></span>1414243733<span></</span><span>TimeStamp</span><span>></span>
    <span><</span><span>Nonce</span><span>></span><span><![CDATA[</span><span>1792106704</span><span>]]></span><span></</span><span>Nonce</span><span>></span>
<span></</span><span>xml</span><span>></span>

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In this way, the encryption and decryption of messages in safe mode is completed.

3. Complete code

<span>  1</span> <?<span>php
</span><span>  2</span> <span>/*</span>
<span>  3</span> <span>    方倍工作室 http://www.cnblogs.com/txw1958/
</span><span>  4</span> <span>    CopyRight 2014 All Rights Reserved
</span><span>  5</span> <span>*/</span>
<span>  6</span> <span>define</span>("TOKEN", "weixin"<span>);
</span><span>  7</span> <span>define</span>("AppID", "wxbad0b45542aa0b5e"<span>);
</span><span>  8</span> <span>define</span>("EncodingAESKey", "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFG"<span>);
</span><span>  9</span> <span>require_once</span>('wxBizMsgCrypt.php'<span>);
</span><span> 10</span> 
<span> 11</span> <span>$wechatObj</span> = <span>new</span><span> wechatCallbackapiTest();
</span><span> 12</span> <span>if</span> (!<span>isset</span>(<span>$_GET</span>['echostr'<span>])) {
</span><span> 13</span>     <span>$wechatObj</span>-><span>responseMsg();
</span><span> 14</span> }<span>else</span><span>{
</span><span> 15</span>     <span>$wechatObj</span>-><span>valid();
</span><span> 16</span> <span>}
</span><span> 17</span> 
<span> 18</span> <span>class</span><span> wechatCallbackapiTest
</span><span> 19</span> <span>{
</span><span> 20</span>     <span>//</span><span>验证签名</span>
<span> 21</span>     <span>public</span> <span>function</span><span> valid()
</span><span> 22</span> <span>    {
</span><span> 23</span>         <span>$echoStr</span> = <span>$_GET</span>["echostr"<span>];
</span><span> 24</span>         <span>$signature</span> = <span>$_GET</span>["signature"<span>];
</span><span> 25</span>         <span>$timestamp</span> = <span>$_GET</span>["timestamp"<span>];
</span><span> 26</span>         <span>$nonce</span> = <span>$_GET</span>["nonce"<span>];
</span><span> 27</span>         <span>$tmpArr</span> = <span>array</span>(TOKEN, <span>$timestamp</span>, <span>$nonce</span><span>);
</span><span> 28</span>         <span>sort</span>(<span>$tmpArr</span><span>);
</span><span> 29</span>         <span>$tmpStr</span> = <span>implode</span>(<span>$tmpArr</span><span>);
</span><span> 30</span>         <span>$tmpStr</span> = <span>sha1</span>(<span>$tmpStr</span><span>);
</span><span> 31</span>         <span>if</span>(<span>$tmpStr</span> == <span>$signature</span><span>){
</span><span> 32</span>             <span>echo</span> <span>$echoStr</span><span>;
</span><span> 33</span>             <span>exit</span><span>;
</span><span> 34</span> <span>        }
</span><span> 35</span> <span>    }
</span><span> 36</span> 
<span> 37</span>     <span>//</span><span>响应消息</span>
<span> 38</span>     <span>public</span> <span>function</span><span> responseMsg()
</span><span> 39</span> <span>    {
</span><span> 40</span>         <span>$timestamp</span>  = <span>$_GET</span>['timestamp'<span>];
</span><span> 41</span>         <span>$nonce</span> = <span>$_GET</span>["nonce"<span>];
</span><span> 42</span>         <span>$msg_signature</span>  = <span>$_GET</span>['msg_signature'<span>];
</span><span> 43</span>         <span>$encrypt_type</span> = (<span>isset</span>(<span>$_GET</span>['encrypt_type']) && (<span>$_GET</span>['encrypt_type'] == 'aes')) ? "aes" : "raw"<span>;
</span><span> 44</span>         
<span> 45</span>         <span>$postStr</span> = <span>$GLOBALS</span>["HTTP_RAW_POST_DATA"<span>];
</span><span> 46</span>         <span>if</span> (!<span>empty</span>(<span>$postStr</span><span>)){
</span><span> 47</span>             <span>//</span><span>解密</span>
<span> 48</span>             <span>if</span> (<span>$encrypt_type</span> == 'aes'<span>){
</span><span> 49</span>                 <span>$pc</span> = <span>new</span> WXBizMsgCrypt(TOKEN, EncodingAESKey,<span> AppID);                
</span><span> 50</span>                 <span>$this</span>->logger(" D \r\n".<span>$postStr</span><span>);
</span><span> 51</span>                 <span>$decryptMsg</span> = "";  <span>//</span><span>解密后的明文</span>
<span> 52</span>                 <span>$errCode</span> = <span>$pc</span>->DecryptMsg(<span>$msg_signature</span>, <span>$timestamp</span>, <span>$nonce</span>, <span>$postStr</span>, <span>$decryptMsg</span><span>);
</span><span> 53</span>                 <span>$postStr</span> = <span>$decryptMsg</span><span>;
</span><span> 54</span> <span>            }
</span><span> 55</span>             <span>$this</span>->logger(" R \r\n".<span>$postStr</span><span>);
</span><span> 56</span>             <span>$postObj</span> = <span>simplexml_load_string</span>(<span>$postStr</span>, 'SimpleXMLElement',<span> LIBXML_NOCDATA);
</span><span> 57</span>             <span>$RX_TYPE</span> = <span>trim</span>(<span>$postObj</span>-><span>MsgType);
</span><span> 58</span> 
<span> 59</span>             <span>//</span><span>消息类型分离</span>
<span> 60</span>             <span>switch</span> (<span>$RX_TYPE</span><span>)
</span><span> 61</span> <span>            {
</span><span> 62</span>                 <span>case</span> "event":
<span> 63</span>                     <span>$result</span> = <span>$this</span>->receiveEvent(<span>$postObj</span><span>);
</span><span> 64</span>                     <span>break</span><span>;
</span><span> 65</span>                 <span>case</span> "text":
<span> 66</span>                     <span>$result</span> = <span>$this</span>->receiveText(<span>$postObj</span><span>);
</span><span> 67</span>                     <span>break</span><span>;
</span><span> 68</span> <span>            }
</span><span> 69</span>             <span>$this</span>->logger(" R \r\n".<span>$result</span><span>);
</span><span> 70</span>             <span>//</span><span>加密</span>
<span> 71</span>             <span>if</span> (<span>$encrypt_type</span> == 'aes'<span>){
</span><span> 72</span>                 <span>$encryptMsg</span> = ''; <span>//</span><span>加密后的密文</span>
<span> 73</span>                 <span>$errCode</span> = <span>$pc</span>->encryptMsg(<span>$result</span>, <span>$timeStamp</span>, <span>$nonce</span>, <span>$encryptMsg</span><span>);
</span><span> 74</span>                 <span>$result</span> = <span>$encryptMsg</span><span>;
</span><span> 75</span>                 <span>$this</span>->logger(" E \r\n".<span>$result</span><span>);
</span><span> 76</span> <span>            }
</span><span> 77</span>             <span>echo</span> <span>$result</span><span>;
</span><span> 78</span>         }<span>else</span><span> {
</span><span> 79</span>             <span>echo</span> ""<span>;
</span><span> 80</span>             <span>exit</span><span>;
</span><span> 81</span> <span>        }
</span><span> 82</span> <span>    }
</span><span> 83</span> 
<span> 84</span>     <span>//</span><span>接收事件消息</span>
<span> 85</span>     <span>private</span> <span>function</span> receiveEvent(<span>$object</span><span>)
</span><span> 86</span> <span>    {
</span><span> 87</span>         <span>$content</span> = ""<span>;
</span><span> 88</span>         <span>switch</span> (<span>$object</span>-><span>Event)
</span><span> 89</span> <span>        {
</span><span> 90</span>             <span>case</span> "subscribe":
<span> 91</span>                 <span>$content</span> = "欢迎关注方倍工作室 "<span>;
</span><span> 92</span>                 <span>break</span><span>;
</span><span> 93</span> <span>        }
</span><span> 94</span> 
<span> 95</span>         <span>$result</span> = <span>$this</span>->transmitText(<span>$object</span>, <span>$content</span><span>);
</span><span> 96</span>         <span>return</span> <span>$result</span><span>;
</span><span> 97</span> <span>    }
</span><span> 98</span> 
<span> 99</span>     <span>//</span><span>接收文本消息</span>
<span>100</span>     <span>private</span> <span>function</span> receiveText(<span>$object</span><span>)
</span><span>101</span> <span>    {
</span><span>102</span>         <span>$keyword</span> = <span>trim</span>(<span>$object</span>-><span>Content);
</span><span>103</span>         <span>if</span> (<span>strstr</span>(<span>$keyword</span>, "文本"<span>)){
</span><span>104</span>             <span>$content</span> = "这是个文本消息"<span>;
</span><span>105</span>         }<span>else</span> <span>if</span> (<span>strstr</span>(<span>$keyword</span>, "单图文"<span>)){
</span><span>106</span>             <span>$content</span> = <span>array</span><span>();
</span><span>107</span>             <span>$content</span>[] = <span>array</span>("Title"=>"单图文标题",  "Description"=>"单图文内容", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958"<span>);
</span><span>108</span>         }<span>else</span> <span>if</span> (<span>strstr</span>(<span>$keyword</span>, "图文") || <span>strstr</span>(<span>$keyword</span>, "多图文"<span>)){
</span><span>109</span>             <span>$content</span> = <span>array</span><span>();
</span><span>110</span>             <span>$content</span>[] = <span>array</span>("Title"=>"多图文1标题", "Description"=>"", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958"<span>);
</span><span>111</span>             <span>$content</span>[] = <span>array</span>("Title"=>"多图文2标题", "Description"=>"", "PicUrl"=>"http://d.hiphotos.bdimg.com/wisegame/pic/item/f3529822720e0cf3ac9f1ada0846f21fbe09aaa3.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958"<span>);
</span><span>112</span>             <span>$content</span>[] = <span>array</span>("Title"=>"多图文3标题", "Description"=>"", "PicUrl"=>"http://g.hiphotos.bdimg.com/wisegame/pic/item/18cb0a46f21fbe090d338acc6a600c338644adfd.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958"<span>);
</span><span>113</span>         }<span>else</span> <span>if</span> (<span>strstr</span>(<span>$keyword</span>, "音乐"<span>)){
</span><span>114</span>             <span>$content</span> = <span>array</span><span>();
</span><span>115</span>             <span>$content</span> = <span>array</span>("Title"=>"最炫民族风", "Description"=>"歌手：凤凰传奇", "MusicUrl"=>"http://121.199.4.61/music/zxmzf.mp3", "HQMusicUrl"=>"http://121.199.4.61/music/zxmzf.mp3"<span>);
</span><span>116</span>         }<span>else</span><span>{
</span><span>117</span>             <span>$content</span> = <span>date</span>("Y-m-d H:i:s",<span>time</span>())."\n".<span>$object</span>->FromUserName."\n技术支持 方倍工作室"<span>;
</span><span>118</span> <span>        }
</span><span>119</span> 
<span>120</span>         <span>if</span>(<span>is_array</span>(<span>$content</span><span>)){
</span><span>121</span>             <span>if</span> (<span>isset</span>(<span>$content</span>[0<span>])){
</span><span>122</span>                 <span>$result</span> = <span>$this</span>->transmitNews(<span>$object</span>, <span>$content</span><span>);
</span><span>123</span>             }<span>else</span> <span>if</span> (<span>isset</span>(<span>$content</span>['MusicUrl'<span>])){
</span><span>124</span>                 <span>$result</span> = <span>$this</span>->transmitMusic(<span>$object</span>, <span>$content</span><span>);
</span><span>125</span> <span>            }
</span><span>126</span>         }<span>else</span><span>{
</span><span>127</span>             <span>$result</span> = <span>$this</span>->transmitText(<span>$object</span>, <span>$content</span><span>);
</span><span>128</span> <span>        }
</span><span>129</span>         <span>return</span> <span>$result</span><span>;
</span><span>130</span> <span>    }
</span><span>131</span> 
<span>132</span>     <span>//</span><span>回复文本消息</span>
<span>133</span>     <span>private</span> <span>function</span> transmitText(<span>$object</span>, <span>$content</span><span>)
</span><span>134</span> <span>    {
</span><span>135</span>         <span>$xmlTpl</span> = "<span><xml>
</span><span>136</span> <span>    <ToUserName><![CDATA[%s]]></ToUserName>
</span><span>137</span> <span>    <FromUserName><![CDATA[%s]]></FromUserName>
</span><span>138</span> <span>    <CreateTime>%s</CreateTime>
</span><span>139</span> <span>    <MsgType><![CDATA[text]]></MsgType>
</span><span>140</span> <span>    <Content><![CDATA[%s]]></Content>
</span><span>141</span> </xml>"<span>;
</span><span>142</span>         <span>$result</span> = <span>sprintf</span>(<span>$xmlTpl</span>, <span>$object</span>->FromUserName, <span>$object</span>->ToUserName, <span>time</span>(), <span>$content</span><span>);
</span><span>143</span>         <span>return</span> <span>$result</span><span>;
</span><span>144</span> <span>    }
</span><span>145</span> 
<span>146</span>     <span>//</span><span>回复图文消息</span>
<span>147</span>     <span>private</span> <span>function</span> transmitNews(<span>$object</span>, <span>$newsArray</span><span>)
</span><span>148</span> <span>    {
</span><span>149</span>         <span>if</span>(!<span>is_array</span>(<span>$newsArray</span><span>)){
</span><span>150</span>             <span>return</span><span>;
</span><span>151</span> <span>        }
</span><span>152</span>         <span>$itemTpl</span> = "<span>        <item>
</span><span>153</span> <span>            <Title><![CDATA[%s]]></Title>
</span><span>154</span> <span>            <Description><![CDATA[%s]]></Description>
</span><span>155</span> <span>            <PicUrl><![CDATA[%s]]></PicUrl>
</span><span>156</span> <span>            <Url><![CDATA[%s]]></Url>
</span><span>157</span> <span>        </item>
</span><span>158</span> "<span>;
</span><span>159</span>         <span>$item_str</span> = ""<span>;
</span><span>160</span>         <span>foreach</span> (<span>$newsArray</span> <span>as</span> <span>$item</span><span>){
</span><span>161</span>             <span>$item_str</span> .= <span>sprintf</span>(<span>$itemTpl</span>, <span>$item</span>['Title'], <span>$item</span>['Description'], <span>$item</span>['PicUrl'], <span>$item</span>['Url'<span>]);
</span><span>162</span> <span>        }
</span><span>163</span>         <span>$xmlTpl</span> = "<span><xml>
</span><span>164</span> <span>    <ToUserName><![CDATA[%s]]></ToUserName>
</span><span>165</span> <span>    <FromUserName><![CDATA[%s]]></FromUserName>
</span><span>166</span> <span>    <CreateTime>%s</CreateTime>
</span><span>167</span> <span>    <MsgType><![CDATA[news]]></MsgType>
</span><span>168</span> <span>    <ArticleCount>%s</ArticleCount>
</span><span>169</span> <span>    <Articles>
</span><span>170</span> <span>$item_str</span><span>    </Articles>
</span><span>171</span> </xml>"<span>;
</span><span>172</span> 
<span>173</span>         <span>$result</span> = <span>sprintf</span>(<span>$xmlTpl</span>, <span>$object</span>->FromUserName, <span>$object</span>->ToUserName, <span>time</span>(), <span>count</span>(<span>$newsArray</span><span>));
</span><span>174</span>         <span>return</span> <span>$result</span><span>;
</span><span>175</span> <span>    }
</span><span>176</span> 
<span>177</span>     <span>//</span><span>回复音乐消息</span>
<span>178</span>     <span>private</span> <span>function</span> transmitMusic(<span>$object</span>, <span>$musicArray</span><span>)
</span><span>179</span> <span>    {
</span><span>180</span>         <span>$itemTpl</span> = "<span><Music>
</span><span>181</span> <span>        <Title><![CDATA[%s]]></Title>
</span><span>182</span> <span>        <Description><![CDATA[%s]]></Description>
</span><span>183</span> <span>        <MusicUrl><![CDATA[%s]]></MusicUrl>
</span><span>184</span> <span>        <HQMusicUrl><![CDATA[%s]]></HQMusicUrl>
</span><span>185</span>     </Music>"<span>;
</span><span>186</span> 
<span>187</span>         <span>$item_str</span> = <span>sprintf</span>(<span>$itemTpl</span>, <span>$musicArray</span>['Title'], <span>$musicArray</span>['Description'], <span>$musicArray</span>['MusicUrl'], <span>$musicArray</span>['HQMusicUrl'<span>]);
</span><span>188</span> 
<span>189</span>         <span>$xmlTpl</span> = "<span><xml>
</span><span>190</span> <span>    <ToUserName><![CDATA[%s]]></ToUserName>
</span><span>191</span> <span>    <FromUserName><![CDATA[%s]]></FromUserName>
</span><span>192</span> <span>    <CreateTime>%s</CreateTime>
</span><span>193</span> <span>    <MsgType><![CDATA[music]]></MsgType>
</span><span>194</span>     <span>$item_str</span>
<span>195</span> </xml>"<span>;
</span><span>196</span> 
<span>197</span>         <span>$result</span> = <span>sprintf</span>(<span>$xmlTpl</span>, <span>$object</span>->FromUserName, <span>$object</span>->ToUserName, <span>time</span><span>());
</span><span>198</span>         <span>return</span> <span>$result</span><span>;
</span><span>199</span> <span>    }
</span><span>200</span> 
<span>201</span>     <span>//</span><span>日志记录</span>
<span>202</span>     <span>public</span> <span>function</span> logger(<span>$log_content</span><span>)
</span><span>203</span> <span>    {
</span><span>204</span>         <span>if</span>(<span>isset</span>(<span>$_SERVER</span>['HTTP_APPNAME'])){   <span>//</span><span>SAE</span>
<span>205</span>             sae_set_display_errors(<span>false</span><span>);
</span><span>206</span>             sae_debug(<span>$log_content</span><span>);
</span><span>207</span>             sae_set_display_errors(<span>true</span><span>);
</span><span>208</span>         }<span>else</span> <span>if</span>(<span>$_SERVER</span>['REMOTE_ADDR'] != "127.0.0.1"){ <span>//</span><span>LOCAL</span>
<span>209</span>             <span>$max_size</span> = 500000<span>;
</span><span>210</span>             <span>$log_filename</span> = "log.xml"<span>;
</span><span>211</span>             <span>if</span>(<span>file_exists</span>(<span>$log_filename</span>) and (<span>abs</span>(<span>filesize</span>(<span>$log_filename</span>)) > <span>$max_size</span>)){<span>unlink</span>(<span>$log_filename</span><span>);}
</span><span>212</span>             <span>file_put_contents</span>(<span>$log_filename</span>, <span>date</span>('Y-m-d H:i:s').<span>$log_content</span>."\r\n",<span> FILE_APPEND);
</span><span>213</span> <span>        }
</span><span>214</span> <span>    }
</span><span>215</span> <span>}
</span><span>216</span> ?>

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