analysis communication of ucenter
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1.机器状况:
A机器:192.168.1.101
B机器:192.168.1.204
2.AB之间调通ucenter
3.A机器发送uc通信包到B机器,抓包可见
No. Time Source Destination Protocol Info
16 5.934133 192.168.1.101 192.168.1.204 HTTP POST /mall/forum/api/uc.php?code=52c5AmNlWGVhj3Px%2FYIvW09KKpdR7ouLlCcsc4opnBYHwzrPauwCLlhYWcV2PMEBEXwf7nmybkM8Brw9NuY&__times__=1 HTTP/1.0
Frame 16 (1224 bytes on wire, 1224 bytes captured)
Ethernet II, Src: Intel_89:bd:3e (00:18:de:89:bd:3e), Dst: fe:ff:ff:ff:ff:ff (fe:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.1.101 (192.168.1.101), Dst: 192.168.1.204 (192.168.1.204)
Transmission Control Protocol, Src Port: 1384 (1384), Dst Port: http (80), Seq: 1, Ack: 1, Len: 1170
Hypertext Transfer Protocol
POST /mall/forum/api/uc.php?code=52c5AmNlWGVhj3Px%2FYIvW09KKpdR7ouLlCcsc4opnBYHwzrPauwCLlhYWcV2PMEBEXwf7nmybkM8Brw9NuY&__times__=1 HTTP/1.0/r/n
Accept: */*/r/n
Accept-Language: zh-cn/r/n
Content-Type: multipart/form-data;/r/n
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.8.1.18) Gecko/20081029 Firefox/2.0.0.18/r/n
Host: 192.168.1.204/r/n
Content-Length: 752
Connection: Close/r/n
Cache-Control: no-cache/r/n
Cookie: /r/n
/r/n
The multipart dissector could not find the required boundary parameter.
Data (752 bytes)
0000 3c 3f 78 6d 6c 20 76 65 72 73 69 6f 6e 3d 22 31 <?xml version="1
0010 2e 30 22 20 65 6e 63 6f 64 69 6e 67 3d 22 49 53 .0" encoding="IS
0020 4f 2d 38 38 35 39 2d 31 22 3f 3e 3c 72 6f 6f 74 O-8859-1"?><root
0030 3e 20 3c 69 74 65 6d 5f 33 3e 20 3c 61 70 70 69 > <item_3> <appi
0040 64 3e 33 3c 2f 61 70 70 69 64 3e 20 3c 74 79 70 d>3</appid> <typ
0050 65 3e 44 49 53 43 55 5a 3c 2f 74 79 70 65 3e 20 e>DISCUZ</type>
0060 3c 6e 61 6d 65 3e e5 8d 97 e7 93 9c e8 ae ba e5 <name>..........
0070 9d 9b 3c 2f 6e 61 6d 65 3e 20 3c 75 72 6c 3e 68 ..</name> <url>h
0080 74 74 70 3a 2f 2f 31 39 32 2e 31 36 38 2e 31 2e ttp://192.168.1.
0090 32 30 34 2f 6d 61 6c 6c 2f 66 6f 72 75 6d 3c 2f 204/mall/forum</
00a0 75 72 6c 3e 20 3c 69 70 3e 3c 2f 69 70 3e 20 3c url> <ip></ip> <
00b0 63 68 61 72 73 65 74 3e 3c 2f 63 68 61 72 73 65 charset></charse
00c0 74 3e 20 3c 73 79 6e 6c 6f 67 69 6e 3e 31 3c 2f t> <synlogin>1</
00d0 73 79 6e 6c 6f 67 69 6e 3e 20 3c 65 78 74 72 61 synlogin> <extra
00e0 3e 4e 3b 3c 2f 65 78 74 72 61 3e 20 3c 72 65 63 >N;</extra> <rec
00f0 76 6e 6f 74 65 3e 31 3c 2f 72 65 63 76 6e 6f 74 vnote>1</recvnot
0100 65 3e 20 3c 2f 69 74 65 6d 5f 33 3e 20 3c 69 74 e> </item_3> <it
0110 65 6d 5f 32 3e 20 3c 61 70 70 69 64 3e 32 3c 2f em_2> <appid>2</
0120 61 70 70 69 64 3e 20 3c 74 79 70 65 3e 45 43 53 appid> <type>ECS
0130 48 4f 50 3c 2f 74 79 70 65 3e 20 3c 6e 61 6d 65 HOP</type> <name
0140 3e e5 8d 97 e7 93 9c e7 bd 91 3c 2f 6e 61 6d 65 >.........</name
0150 3e 20 3c 75 72 6c 3e 68 74 74 70 3a 2f 2f 31 32 > <url>http://12
0160 37 2e 30 2e 30 2e 31 2f 6e 61 6e 67 75 61 3c 2f 7.0.0.1/nangua</
0170 75 72 6c 3e 20 3c 69 70 3e 3c 2f 69 70 3e 20 3c url> <ip></ip> <
0180 63 68 61 72 73 65 74 3e 75 74 66 2d 38 3c 2f 63 charset>utf-8</c
0190 68 61 72 73 65 74 3e 20 3c 73 79 6e 6c 6f 67 69 harset> <synlogi
01a0 6e 3e 31 3c 2f 73 79 6e 6c 6f 67 69 6e 3e 20 3c n>1</synlogin> <
01b0 65 78 74 72 61 3e 4e 3b 3c 2f 65 78 74 72 61 3e extra>N;</extra>
01c0 20 3c 72 65 63 76 6e 6f 74 65 3e 31 3c 2f 72 65 <recvnote>1</re
01d0 63 76 6e 6f 74 65 3e 20 3c 2f 69 74 65 6d 5f 32 cvnote> </item_2
01e0 3e 20 3c 69 74 65 6d 5f 34 3e 20 3c 61 70 70 69 > <item_4> <appi
01f0 64 3e 34 3c 2f 61 70 70 69 64 3e 20 3c 74 79 70 d>4</appid> <typ
0200 65 3e 4f 54 48 45 52 3c 2f 74 79 70 65 3e 20 3c e>OTHER</type> <
0210 6e 61 6d 65 3e 44 45 44 45 43 4d 53 3c 2f 6e 61 name>DEDECMS</na
0220 6d 65 3e 20 3c 75 72 6c 3e 68 74 74 70 3a 2f 2f me> <url>http://
0230 31 39 32 2e 31 36 38 2e 31 2e 32 30 34 2f 64 65 192.168.1.204/de
0240 64 65 63 6d 73 3c 2f 75 72 6c 3e 20 3c 69 70 3e decms</url> <ip>
0250 3c 2f 69 70 3e 20 3c 63 68 61 72 73 65 74 3e 75 </ip> <charset>u
0260 74 66 2d 38 3c 2f 63 68 61 72 73 65 74 3e 20 3c tf-8</charset> <
0270 73 79 6e 6c 6f 67 69 6e 3e 31 3c 2f 73 79 6e 6c synlogin>1</synl
0280 6f 67 69 6e 3e 20 3c 65 78 74 72 61 3e 4e 3b 3c ogin> <extra>N;<
0290 2f 65 78 74 72 61 3e 20 3c 72 65 63 76 6e 6f 74 /extra> <recvnot
02a0 65 3e 31 3c 2f 72 65 63 76 6e 6f 74 65 3e 20 3c e>1</recvnote> <
02b0 2f 69 74 65 6d 5f 34 3e 20 3c 55 43 5f 41 50 49 /item_4> <UC_API
02c0 3e 68 74 74 70 3a 2f 2f 31 32 37 2e 30 2e 30 2e >http://127.0.0.
02d0 31 2f 6e 61 6e 67 75 61 2f 75 63 65 6e 74 65 72 1/nangua/ucenter
02e0 3c 2f 55 43 5f 41 50 49 3e 3c 2f 72 6f 6f 74 3e </UC_API></root>
No. Time Source Destination Protocol Info
18 5.941275 192.168.1.204 192.168.1.101 HTTP HTTP/1.1 200 OK (text/html)
Frame 18 (238 bytes on wire, 238 bytes captured)
Ethernet II, Src: fe:ff:ff:ff:ff:ff (fe:ff:ff:ff:ff:ff), Dst: Intel_89:bd:3e (00:18:de:89:bd:3e)
Internet Protocol, Src: 192.168.1.204 (192.168.1.204), Dst: 192.168.1.101 (192.168.1.101)
Transmission Control Protocol, Src Port: http (80), Dst Port: 1384 (1384), Seq: 1, Ack: 1171, Len: 184
Hypertext Transfer Protocol
HTTP/1.1 200 OK/r/n
Date: Wed, 10 Dec 2008 05:20:35 GMT/r/n
Server: Apache/2.2.9 (Unix) PHP/5.2.6/r/n
X-Powered-By: PHP/5.2.6/r/n
Content-Length: 1
Connection: close/r/n
Content-Type: text/html/r/n
/r/n
Line-based text data: text/html
1
4.查看代码,可知道,uc是通过下面代码加密key及一些参数后进行通信
function get_url_code($operation, $getdata, $appid) {
$app = $this->apps[$appid];
$authkey = $this->db->result_first("SELECT authkey FROM ".UC_DBTABLEPRE."applications WHERE appid='$appid'");
$url = $app['url'];
$action = $this->operations[$operation][1];
$code = urlencode(uc_authcode("$action&".($getdata ? "$getdata&" : '')."time=".$this->base->time, 'ENCODE', $authkey));
return $url."/api/uc.php?code=$code";
}
5.所以两边要通信必须密钥要对,另外通信的url加上/api/uc.php这个东西要存在,因为是post到这里通信的
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