/[fcproducts]/auth_POP3.php
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Contents of /auth_POP3.php

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Revision 1.1 - (show annotations)
Wed Jun 6 10:54:22 2001 UTC (18 years, 4 months ago) by ravilov
Branch: MAIN
CVS Tags: HEAD
Dodana POP3 i MD5 autorizacija, izbacena plaintext autorizacija.

1 <?
2
3 /*
4 Document manager auth_pop3.php module
5
6 WARNING: this modules uses e-mail address to check
7 login and password against pop3 server! e-mail must be
8 in following form:
9
10 login_on_pop3_server@pop3_server.domain
11
12 That should actually be also a vaild e-mail address
13
14
15 this module is based on class.POP3.php3 by cdi@thewebmasters.net
16 */
17
18 function auth_pop3($user) {
19 $email = explode("@",$user[3]);
20 $pop3 = new POP3();
21 $pop3->connect($email[1]);
22 if ($pop3->checklogin($email[0],$GLOBALS[PHP_AUTH_PW])) {
23 $pop3->quit();
24 return true;
25 }
26 $pop3->quit();
27 return false;
28 }
29
30 //--------------------------------------------------------------------------
31
32 /*
33 This is just a part of class.POP3.php3 which is needed for
34 auth_pop3.php module. Please look at original location for
35 whole class!
36
37 class.POP3.php3 v1.0 99/03/24 CDI cdi@thewebmasters.net
38 Copyright (c) 1999 - CDI (cdi@thewebmasters.net) All Rights Reserved
39
40 An RFC 1939 compliant wrapper class for the POP3 protocol.
41 */
42
43 class POP3
44 {
45 var $ERROR = ""; // Error string.
46
47 var $TIMEOUT = 60; // Default timeout before giving up on a
48 // network operation.
49
50 var $COUNT = -1; // Mailbox msg count
51
52 var $BUFFER = 512; // Socket buffer for socket fgets() calls.
53 // Per RFC 1939 the returned line a POP3
54 // server can send is 512 bytes.
55
56 var $FP = ""; // The connection to the server's
57 // file descriptor
58
59 var $MAILSERVER = ""; // Set this to hard code the server name
60
61 var $DEBUG = false;// set to true to echo pop3
62 // commands and responses to error_log
63 // this WILL log passwords!
64
65 var $BANNER = ""; // Holds the banner returned by the
66 // pop server - used for apop()
67
68 function POP3 ( $server = "", $timeout = "" )
69 {
70 settype($this->BUFFER,"integer");
71 if(!empty($server))
72 {
73 // Do not allow programs to alter MAILSERVER
74 // if it is already specified. They can get around
75 // this if they -really- want to, so don't count on it.
76 if(empty($this->MAILSERVER))
77 {
78 $this->MAILSERVER = $server;
79 }
80 }
81 if(!empty($timeout))
82 {
83 settype($timeout,"integer");
84 $this->TIMEOUT = $timeout;
85 set_time_limit($timeout);
86 }
87 return true;
88 }
89
90 function update_timer ()
91 {
92 set_time_limit($this->TIMEOUT);
93 return true;
94 }
95
96 function connect ($server, $port = 110)
97 {
98 // Opens a socket to the specified server. Unless overridden,
99 // port defaults to 110. Returns true on success, false on fail
100
101 // If MAILSERVER is set, override $server with it's value
102
103 if(!empty($this->MAILSERVER))
104 {
105 $server = $this->MAILSERVER;
106 }
107
108 if(empty($server))
109 {
110 $this->ERROR = "POP3 connect: No server specified";
111 unset($this->FP);
112 return false;
113 }
114
115 $fp = fsockopen("$server", $port, &$errno, &$errstr);
116
117 if(!$fp)
118 {
119 $this->ERROR = "POP3 connect: Error [$errno] [$errstr]";
120 unset($this->FP);
121 return false;
122 }
123
124 set_socket_blocking($fp,-1);
125 $this->update_timer();
126 $reply = fgets($fp,$this->BUFFER);
127 $reply = $this->strip_clf($reply);
128 if($this->DEBUG) { error_log("POP3 SEND [connect: $server] GOT [$reply]",0); }
129 if(!$this->is_ok($reply))
130 {
131 $this->ERROR = "POP3 connect: Error [$reply]";
132 unset($this->FP);
133 return false;
134 }
135 $this->FP = $fp;
136 $this->BANNER = $this->parse_banner($reply);
137 return true;
138 }
139
140 //-----------------------------
141
142 function checklogin ($user, $pass) {
143 $reply = $this->send_cmd("USER $user");
144 if(!$this->is_ok($reply))
145 {
146 $this->ERROR = "POP3 user: Error [$reply]";
147 return false;
148 }
149
150 $reply = $this->send_cmd("PASS $pass");
151 if(!$this->is_ok($reply))
152 {
153 $this->ERROR = "POP3 pass: authentication failed [$reply]";
154 $this->quit();
155 return false;
156 }
157 // Auth successful.
158 return true;
159 }
160
161 //-------------------------------------------
162
163 function noop ()
164 {
165 if(!isset($this->FP))
166 {
167 $this->ERROR = "POP3 noop: No connection to server";
168 return false;
169 }
170 $cmd = "NOOP";
171 $reply = $this->send_cmd($cmd);
172 if(!$this->is_ok($reply))
173 {
174 return false;
175 }
176 return true;
177 }
178
179 function send_cmd ( $cmd = "" )
180 {
181 // Sends a user defined command string to the
182 // POP server and returns the results. Useful for
183 // non-compliant or custom POP servers.
184 // Do NOT include the \r\n as part of your command
185 // string - it will be appended automatically.
186
187 // The return value is a standard fgets() call, which
188 // will read up to $this->BUFFER bytes of data, until it
189 // encounters a new line, or EOF, whichever happens first.
190
191 // This method works best if $cmd responds with only
192 // one line of data.
193
194 if(!isset($this->FP))
195 {
196 $this->ERROR = "POP3 send_cmd: No connection to server";
197 return false;
198 }
199
200 if(empty($cmd))
201 {
202 $this->ERROR = "POP3 send_cmd: Empty command string";
203 return "";
204 }
205
206 $fp = $this->FP;
207 $buffer = $this->BUFFER;
208 $this->update_timer();
209 fwrite($fp,"$cmd\r\n");
210 $reply = fgets($fp,$buffer);
211 $reply = $this->strip_clf($reply);
212 if($this->DEBUG) { @error_log("POP3 SEND [$cmd] GOT [$reply]",0); }
213 return $reply;
214 }
215
216 function quit ()
217 {
218 // Closes the connection to the POP3 server, deleting
219 // any msgs marked as deleted.
220
221 if(!isset($this->FP))
222 {
223 $this->ERROR = "POP3 quit: connection does not exist";
224 return false;
225 }
226 $fp = $this->FP;
227 $cmd = "QUIT";
228 fwrite($fp,"$cmd\r\n");
229 $reply = fgets($fp,$this->BUFFER);
230 $reply = $this->strip_clf($reply);
231 if($this->DEBUG) { @error_log("POP3 SEND [$cmd] GOT [$reply]",0); }
232 fclose($fp);
233 unset($this->FP);
234 return true;
235 }
236
237 // *********************************************************
238
239 // The following methods are internal to the class.
240
241 function is_ok ($cmd = "")
242 {
243 // Return true or false on +OK or -ERR
244
245 if(empty($cmd)) { return false; }
246 if ( ereg ("^\+OK", $cmd ) ) { return true; }
247 return false;
248 }
249
250 function strip_clf ($text = "")
251 {
252 // Strips \r\n from server responses
253
254 if(empty($text)) { return $text; }
255 $stripped = ereg_replace("\r","",$text);
256 $stripped = ereg_replace("\n","",$stripped);
257 return $stripped;
258 }
259
260 function parse_banner ( $server_text )
261 {
262 $outside = true;
263 $banner = "";
264 $length = strlen($server_text);
265 for($count =0; $count < $length; $count++)
266 {
267 $digit = substr($server_text,$count,1);
268 if(!empty($digit))
269 {
270 if( (!$outside) and ($digit != '<') and ($digit != '>') )
271 {
272 $banner .= $digit;
273 }
274 if ($digit == '<')
275 {
276 $outside = false;
277 }
278 if($digit == '>')
279 {
280 $outside = true;
281 }
282 }
283 }
284 $banner = $this->strip_clf($banner); // Just in case
285 return "<$banner>";
286 }
287
288 } // End class
289
290 ?>

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