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1 | <? |
2 | /** smtp.php |
3 | ** |
4 | ** This contains all the functions needed to send messages through |
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5 | ** an smtp server or sendmail. |
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6 | **/ |
7 | |
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8 | |
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9 | /* These next 2 functions are stub functions for implementations of |
10 | attachments */ |
11 | |
12 | // Returns true only if this message is multipart |
13 | function isMultipart () { |
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14 | global $attachments; |
15 | |
16 | if (count($attachments)>0) |
17 | return true; |
18 | else |
19 | return false; |
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20 | } |
21 | |
22 | // Attach the files that are due to be attached |
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23 | function attachFiles ($fp) { |
24 | global $attachments; |
25 | |
26 | while (list($localname, $remotename) = each($attachments)) { |
27 | $fileinfo = fopen ($localname.".info", "r"); |
28 | $filetype = fgets ($fileinfo, 8192); |
29 | fclose ($fileinfo); |
30 | $filetype = trim ($filetype); |
31 | if ($filetype=="") |
32 | $filetype = "application/octet-stream"; |
33 | |
34 | fputs ($fp, "--".mimeBoundary()."\n"); |
35 | fputs ($fp, "Content-Type: $filetype\n"); |
36 | fputs ($fp, "Content-Disposition: attachment; filename=\"$remotename\"\n"); |
37 | fputs ($fp, "Content-Transfer-Encoding: base64\n\n"); |
38 | |
39 | $file = fopen ($localname, "r"); |
40 | while ($tmp = fread($file, 57)) |
41 | fputs ($fp, chunk_split(base64_encode($tmp))); |
42 | fclose ($file); |
43 | |
44 | unlink ($localname); |
45 | unlink ($localname.".info"); |
46 | } |
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47 | } |
48 | |
49 | // Return a nice MIME-boundary |
50 | function mimeBoundary () { |
51 | global $mimeBoundaryString, $version, $REMOTE_ADDR, $SERVER_NAME, |
52 | $REMOTE_PORT; |
53 | |
54 | if ($mimeBoundaryString == "") { |
55 | $temp = "SquirrelMail".$version.$REMOTE_ADDR.$SERVER_NAME. |
56 | $REMOTE_PORT; |
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57 | $mimeBoundaryString = "=-_+".substr(md5($temp),1,20); |
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58 | } |
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59 | |
60 | return $mimeBoundaryString; |
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61 | } |
62 | |
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63 | /* Print all the needed RFC822 headers */ |
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64 | function write822Header ($fp, $t, $c, $b, $subject) { |
65 | global $REMOTE_ADDR, $SERVER_NAME; |
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66 | global $data_dir, $username, $domain, $version, $useSendmail; |
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67 | |
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68 | $to = parseAddrs($t); |
69 | $cc = parseAddrs($c); |
70 | $bcc = parseAddrs($b); |
71 | $from_addr = "$username@$domain"; |
72 | $reply_to = getPref($data_dir, $username, "reply_to"); |
73 | $from = getPref($data_dir, $username, "full_name"); |
74 | |
75 | $to_list = getLineOfAddrs($to); |
76 | $cc_list = getLineOfAddrs($cc); |
77 | $bcc_list = getLineOfAddrs($bcc); |
78 | |
79 | if ($from == "") |
80 | $from = "<$from_addr>"; |
81 | else |
82 | $from = $from . " <$from_addr>"; |
83 | |
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84 | /* This creates an RFC 822 date showing GMT */ |
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85 | $date = date("D, j M Y H:i:s +0000", gmmktime()); |
86 | |
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87 | /* Make an RFC822 Received: line */ |
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88 | fputs ($fp, "Received: from $REMOTE_ADDR by $SERVER_NAME with HTTP; "); |
89 | fputs ($fp, "$date\n"); |
90 | |
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91 | /* The rest of the header */ |
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92 | fputs ($fp, "Date: $date\n"); |
93 | fputs ($fp, "Subject: $subject\n"); // Subject |
94 | fputs ($fp, "From: $from\n"); // Subject |
95 | fputs ($fp, "To: $to_list\n"); // Who it's TO |
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96 | |
97 | if ($cc_list) { |
98 | fputs($fp, "Cc: $cc_list\n"); // Who the CCs are |
99 | } |
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100 | |
101 | if ($reply_to != "") |
102 | fputs($fp, "Reply-To: $reply_to\n"); |
103 | |
104 | if ($useSendmail) { |
105 | if ($bcc_list) { |
106 | // BCCs is removed from header by sendmail |
107 | fputs($fp, "Bcc: $bcc_list\n"); |
108 | } |
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109 | } |
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110 | |
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111 | fputs($fp, "X-Mailer: SquirrelMail (version $version)\n"); // Identify SquirrelMail |
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112 | |
113 | // Do the MIME-stuff |
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114 | fputs($fp, "MIME-Version: 1.0\n"); |
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115 | |
116 | if (isMultipart()) { |
117 | fputs ($fp, "Content-Type: multipart/mixed; boundary=\""); |
118 | fputs ($fp, mimeBoundary()); |
119 | fputs ($fp, "\"\n"); |
120 | } else { |
121 | fputs($fp, "Content-Type: text/plain; charset=ISO-8859-1\n"); |
122 | fputs($fp, "Content-Transfer-Encoding: 8bit\n"); |
123 | } |
124 | } |
125 | |
126 | // Send the body |
127 | function writeBody ($fp, $body) { |
128 | if (isMultipart()) { |
129 | fputs ($fp, "--".mimeBoundary()."\n"); |
130 | fputs ($fp, "Content-Type: text/plain; charset=ISO-8859-1\n"); |
131 | fputs ($fp, "Content-Transfer-Encoding: 8bit\n\n"); |
132 | fputs ($fp, "$body\n"); |
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133 | attachFiles($fp); |
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134 | fputs ($fp, "\n--".mimeBoundary()."--\n"); |
135 | } else { |
136 | fputs ($fp, "$body\n"); |
137 | } |
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138 | } |
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139 | |
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140 | // Send mail using the sendmail command |
141 | function sendSendmail($t, $c, $b, $subject, $body) { |
142 | global $sendmail_path, $username, $domain; |
143 | |
144 | // open pipe to sendmail |
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145 | $fp = popen (escapeshellcmd("$sendmail_path -t -f$username@$domain"), "w"); |
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146 | |
147 | write822Header ($fp, $t, $c, $b, $subject); |
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148 | writeBody($fp, $body); |
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149 | |
150 | pclose($fp); |
151 | } |
152 | |
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153 | function smtpReadData($smtpConnection) { |
154 | $read = fgets($smtpConnection, 1024); |
155 | $counter = 0; |
156 | while ($read) { |
157 | echo $read . "<BR>"; |
158 | $data[$counter] = $read; |
159 | $read = fgets($smtpConnection, 1024); |
160 | $counter++; |
161 | } |
162 | } |
163 | |
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164 | function sendSMTP($t, $c, $b, $subject, $body) { |
165 | global $username, $domain, $version, $smtpServerAddress, $smtpPort; |
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166 | |
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167 | $to = parseAddrs($t); |
168 | $cc = parseAddrs($c); |
169 | $bcc = parseAddrs($b); |
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170 | $from_addr = "$username@$domain"; |
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171 | |
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172 | $smtpConnection = fsockopen($smtpServerAddress, $smtpPort, $errorNumber, $errorString); |
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173 | if (!$smtpConnection) { |
174 | echo "Error connecting to SMTP Server.<br>"; |
175 | echo "$errorNumber : $errorString<br>"; |
176 | exit; |
177 | } |
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178 | $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024))); |
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179 | errorCheck($tmp); |
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180 | |
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181 | $to_list = getLineOfAddrs($to); |
182 | $cc_list = getLineOfAddrs($cc); |
183 | |
184 | /** Lets introduce ourselves */ |
185 | fputs($smtpConnection, "HELO $domain\n"); |
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186 | $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024))); |
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187 | errorCheck($tmp); |
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188 | |
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189 | /** Ok, who is sending the message? */ |
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190 | fputs($smtpConnection, "MAIL FROM:<$from_addr>\n"); |
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191 | $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024))); |
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192 | errorCheck($tmp); |
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193 | |
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194 | /** send who the recipients are */ |
195 | for ($i = 0; $i < count($to); $i++) { |
196 | fputs($smtpConnection, "RCPT TO:<$to[$i]>\n"); |
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197 | $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024))); |
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198 | errorCheck($tmp); |
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199 | } |
200 | for ($i = 0; $i < count($cc); $i++) { |
201 | fputs($smtpConnection, "RCPT TO:<$cc[$i]>\n"); |
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202 | $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024))); |
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203 | errorCheck($tmp); |
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204 | } |
205 | for ($i = 0; $i < count($bcc); $i++) { |
206 | fputs($smtpConnection, "RCPT TO:<$bcc[$i]>\n"); |
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207 | $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024))); |
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208 | errorCheck($tmp); |
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209 | } |
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210 | |
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211 | /** Lets start sending the actual message */ |
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212 | fputs($smtpConnection, "DATA\n"); |
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213 | $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024))); |
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214 | errorCheck($tmp); |
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215 | |
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216 | write822Header ($smtpConnection, $t, $c, $b, $subject); |
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217 | |
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218 | writeBody($smtpConnection, $body); // send the body of the message |
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219 | |
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220 | fputs($smtpConnection, ".\n"); // end the DATA part |
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221 | $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024))); |
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222 | $num = errorCheck($tmp); |
223 | if ($num != 250) { |
224 | echo "<HTML><BODY BGCOLOR=FFFFFF>ERROR<BR>Message not sent!<BR>Reason given: $tmp<BR></BODY></HTML>"; |
225 | } |
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226 | |
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227 | fputs($smtpConnection, "QUIT\n"); // log off |
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228 | |
229 | fclose($smtpConnection); |
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230 | } |
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231 | |
232 | |
233 | function errorCheck($line) { |
234 | // Status: 0 = fatal |
235 | // 5 = ok |
236 | |
237 | $err_num = substr($line, 0, strpos($line, " ")); |
238 | switch ($err_num) { |
239 | case 500: $message = "Syntax error; command not recognized"; |
240 | $status = 0; |
241 | break; |
242 | case 501: $message = "Syntax error in parameters or arguments"; |
243 | $status = 0; |
244 | break; |
245 | case 502: $message = "Command not implemented"; |
246 | $status = 0; |
247 | break; |
248 | case 503: $message = "Bad sequence of commands"; |
249 | $status = 0; |
250 | break; |
251 | case 504: $message = "Command parameter not implemented"; |
252 | $status = 0; |
253 | break; |
254 | |
255 | |
256 | case 211: $message = "System status, or system help reply"; |
257 | $status = 5; |
258 | break; |
259 | case 214: $message = "Help message"; |
260 | $status = 5; |
261 | break; |
262 | |
263 | |
264 | case 220: $message = "Service ready"; |
265 | $status = 5; |
266 | break; |
267 | case 221: $message = "Service closing transmission channel"; |
268 | $status = 5; |
269 | break; |
270 | case 421: $message = "Service not available, closing chanel"; |
271 | $status = 0; |
272 | break; |
273 | |
274 | |
275 | case 250: $message = "Requested mail action okay, completed"; |
276 | $status = 5; |
277 | break; |
278 | case 251: $message = "User not local; will forward"; |
279 | $status = 5; |
280 | break; |
281 | case 450: $message = "Requested mail action not taken: mailbox unavailable"; |
282 | $status = 0; |
283 | break; |
284 | case 550: $message = "Requested action not taken: mailbox unavailable"; |
285 | $status = 0; |
286 | break; |
287 | case 451: $message = "Requested action aborted: error in processing"; |
288 | $status = 0; |
289 | break; |
290 | case 551: $message = "User not local; please try forwarding"; |
291 | $status = 0; |
292 | break; |
293 | case 452: $message = "Requested action not taken: insufficient system storage"; |
294 | $status = 0; |
295 | break; |
296 | case 552: $message = "Requested mail action aborted: exceeding storage allocation"; |
297 | $status = 0; |
298 | break; |
299 | case 553: $message = "Requested action not taken: mailbox name not allowed"; |
300 | $status = 0; |
301 | break; |
302 | case 354: $message = "Start mail input; end with ."; |
303 | $status = 5; |
304 | break; |
305 | case 554: $message = "Transaction failed"; |
306 | $status = 0; |
307 | break; |
308 | default: $message = "Unknown response: $line"; |
309 | $status = 0; |
310 | $error_num = "001"; |
311 | break; |
312 | } |
313 | |
314 | if ($status == 0) { |
315 | echo "<HTML><BODY BGCOLOR=FFFFFF>"; |
316 | echo "<TT>"; |
317 | echo "<BR><B>ERROR</B><BR><BR>"; |
318 | echo " <B>Error Number: </B>$err_num<BR>"; |
319 | echo " <B>Reason: </B>$message<BR>"; |
320 | echo "<B>Server Response: </B>$line<BR>"; |
321 | echo "<BR>MAIL NOT SENT"; |
322 | echo "</TT></BODY></HTML>"; |
323 | exit; |
324 | } |
325 | return $err_num; |
326 | } |
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327 | |
328 | function sendMessage($t, $c, $b, $subject, $body) { |
329 | global $useSendmail; |
330 | |
331 | if ($useSendmail==true) { |
332 | sendSendmail($t, $c, $b, $subject, $body); |
333 | } else { |
334 | sendSMTP($t, $c, $b, $subject, $body); |
335 | } |
336 | |
337 | } |
338 | |
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339 | ?> |