cc316430 |
1 | <?php |
2 | |
3 | function sqimap_parse_RFC822Header ($read, $hdr) { |
4 | $i = 0; |
5 | /* Set up some defaults */ |
6 | $hdr->type0 = "text"; |
7 | $hdr->type1 = "plain"; |
8 | $hdr->charset = "us-ascii"; |
9 | |
10 | $count = count($read); |
11 | while ($i < $count) { |
12 | /* unfold multi-line headers */ |
13 | while (($i + 1 < $count) && (strspn($read[$i + 1], "\t ") > 0) ) { |
14 | $read[$i + 1] = substr($read[$i], 0, -2) . ' ' . ltrim($read[$i+1]); |
15 | array_splice($read, $i, 1); |
16 | $count--; |
17 | } |
18 | $line = $read[$i]; |
19 | $c = strtolower($line{0}); |
20 | switch ($c) { |
21 | case 'm': |
22 | $c2 = strtolower($line{1}); |
23 | switch ($c2) { |
24 | case 'i': |
25 | if (substr($line, 0, 17) == "MIME-Version: 1.0") { |
26 | $hdr->mime = true; |
27 | } |
28 | $i++; |
29 | break; |
30 | case 'e': |
31 | /* MESSAGE ID */ |
32 | if (strtolower(substr($line, 0, 11)) == "message-id:") { |
33 | $hdr->message_id = trim(substr($line, 11)); |
34 | } |
35 | $i++; |
36 | break; |
37 | default: |
38 | $i++; |
39 | break; |
40 | } |
41 | break; |
42 | case 'c': |
43 | $c2 = strtolower($line{1}); |
44 | switch ($c2) { |
45 | case 'o': |
46 | /* Content-Transfer-Encoding */ |
47 | if (substr(strtolower($line), 0, 26) == "content-transfer-encoding:") { |
48 | $hdr->encoding = strtolower(trim(substr($line, 26))); |
49 | $i++; |
50 | } |
51 | /* Content-Type */ |
52 | else if (strtolower(substr($line, 0, 13)) == "content-type:") { |
53 | $cont = strtolower(trim(substr($line, 13))); |
54 | if (strpos($cont, ";")) { |
55 | $cont = substr($cont, 0, strpos($cont, ";")); |
56 | } |
57 | if (strpos($cont, "/")) { |
58 | $hdr->type0 = substr($cont, 0, strpos($cont, "/")); |
59 | $hdr->type1 = substr($cont, strpos($cont, "/")+1); |
60 | } else { |
61 | $hdr->type0 = $cont; |
62 | } |
63 | $line = $read[$i]; |
64 | $i++; |
65 | while ( (substr(substr($read[$i], 0, strpos($read[$i], " ")), -1) != ":") && (trim($read[$i]) != "") && (trim($read[$i]) != ")")) { |
66 | str_replace("\n", "", $line); |
67 | str_replace("\n", "", $read[$i]); |
68 | $line = "$line $read[$i]"; |
69 | $i++; |
70 | } |
71 | |
72 | /* Detect the boundary of a multipart message */ |
73 | if (eregi('boundary="([^"]+)"', $line, $regs)) { |
74 | $hdr->boundary = $regs[1]; |
75 | } |
76 | |
77 | /* Detect the charset */ |
78 | if (strpos(strtolower(trim($line)), "charset=")) { |
79 | $pos = strpos($line, "charset=") + 8; |
80 | $charset = trim($line); |
81 | if (strpos($line, ";", $pos) > 0) { |
82 | $charset = substr($charset, $pos, strpos($line, ";", $pos)-$pos); |
83 | } else { |
84 | $charset = substr($charset, $pos); |
85 | } |
86 | $charset = str_replace("\"", "", $charset); |
87 | $hdr->charset = $charset; |
88 | } else { |
89 | $hdr->charset = "us-ascii"; |
90 | } |
91 | /* Detect type in case of multipart/related */ |
92 | if (strpos(strtolower(trim($line)), "type=")) { |
93 | $pos = strpos($line, "type=") + 6; |
94 | $type = trim($line); |
95 | if (strpos($line, ";", $pos) > 0) { |
96 | $type = substr($type, $pos, strpos($line, ";", $pos)-$pos); |
97 | } else { |
98 | $type = substr($type, $pos); |
99 | } |
100 | $hdr->type = $type; |
101 | } |
102 | } |
103 | else if (strtolower(substr($line, 0, 20)) == "content-disposition:") { |
104 | /* Add better content-disposition support */ |
105 | $i++; |
106 | while ( (substr(substr($read[$i], 0, strpos($read[$i], " ")), -1) != ":") && (trim($read[$i]) != "") && (trim($read[$i]) != ")")) { |
107 | str_replace("\n", "", $line); |
108 | str_replace("\n", "", $read[$i]); |
109 | $line = "$line $read[$i]"; |
110 | $i++; |
111 | } |
112 | |
113 | /* Detects filename if any */ |
114 | if (strpos(strtolower(trim($line)), "filename=")) { |
115 | $pos = strpos($line, "filename=") + 9; |
116 | $name = trim($line); |
117 | if (strpos($line, " ", $pos) > 0) { |
118 | $name = substr($name, $pos, strpos($line, " ", $pos)); |
119 | } else { |
120 | $name = substr($name, $pos); |
121 | } |
122 | $name = str_replace("\"", "", $name); |
123 | $hdr->filename = $name; |
124 | } |
125 | } else $i++; |
126 | break; |
127 | case 'c': /* Cc */ |
128 | if (strtolower(substr($line, 0, 3)) == "cc:") { |
b6721590 |
129 | $hdr->cc = sqimap_parse_address(trim(substr($line, 3, strlen($line) - 4)), true); |
cc316430 |
130 | } |
131 | $i++; |
132 | break; |
133 | default: |
134 | $i++; |
135 | break; |
136 | } |
137 | break; |
138 | case 'r': /* Reply-To */ |
139 | if (strtolower(substr($line, 0, 9)) == "reply-to:") { |
140 | $hdr->replyto = sqimap_parse_address(trim(substr($line, 9, strlen($line) - 10)), false); |
141 | } |
142 | $i++; |
143 | break; |
144 | case 'f': /* From */ |
145 | if (strtolower(substr($line, 0, 5)) == "from:") { |
146 | $hdr->from=sqimap_parse_address(trim(substr($line, 5, strlen($line) - 6)), false); |
147 | if (! isset($hdr->replyto) || $hdr->replyto == "") { |
148 | $hdr->replyto = $hdr->from; |
149 | } |
150 | } |
151 | $i++; |
152 | break; |
153 | case 'd': |
154 | $c2 = strtolower($line{1}); |
155 | switch ($c2) { |
156 | case 'a': /* Date */ |
157 | if (strtolower(substr($line, 0, 5)) == "date:") { |
158 | $d = substr($read[$i], 5); |
159 | $d = trim($d); |
160 | $d = strtr($d, array(' ' => ' ')); |
161 | $d = explode(' ', $d); |
162 | $hdr->date = getTimeStamp($d); |
163 | } |
164 | $i++; |
165 | break; |
166 | case 'i': /* Disposition-Notification-To */ |
167 | if (strtolower(substr($line, 0, 28)) == "disposition-notification-to:") { |
168 | $dnt = trim(substr($read[$i], 28)); |
b6721590 |
169 | $hdr->dnt = sqimap_parse_address($dnt, false); |
cc316430 |
170 | } |
171 | $i++; |
172 | break; |
173 | default: |
174 | $i++; |
175 | break; |
176 | } |
177 | break; |
178 | case 's': |
179 | /* SUBJECT */ |
180 | if (strtolower(substr($line, 0, 8)) == "subject:") { |
181 | $hdr->subject = trim(substr($line, 8, strlen($line) - 9)); |
182 | if (strlen(Chop($hdr->subject)) == 0) { |
183 | $hdr->subject = _("(no subject)"); |
184 | } |
185 | } |
186 | $i++; |
187 | break; |
188 | case 'b': |
189 | /* BCC */ |
190 | if (strtolower(substr($line, 0, 4)) == "bcc:") { |
191 | $hdr->bcc = sqimap_parse_address(trim(substr($line, 4, strlen($line) - 5)), true); |
192 | } |
193 | $i++; |
194 | break; |
195 | case 't': |
196 | /* TO */ |
197 | if (strtolower(substr($line, 0, 3)) == "to:") { |
198 | $hdr->to = sqimap_parse_address(trim(substr($line, 3, strlen($line) - 4)), true); |
199 | } |
200 | $i++; |
201 | break; |
202 | case ')': |
203 | /* ERROR CORRECTION */ |
204 | if (strlen(trim($hdr->subject)) == 0) { |
205 | $hdr->subject = _("(no subject)"); |
206 | } |
8686f4b2 |
207 | if (!is_object($hdr->from) && strlen(trim($hdr->from)) == 0) { |
cc316430 |
208 | $hdr->from = _("(unknown sender)"); |
209 | } |
210 | if (strlen(trim($hdr->date)) == 0) { |
211 | $hdr->date = time(); |
212 | } |
213 | $i++; |
214 | break; |
215 | case 'x': |
216 | /* X-PRIORITY */ |
b6721590 |
217 | if (strtolower(substr($line, 0, 11)) == 'x-priority:') { |
cc316430 |
218 | $hdr->priority = trim(substr($line, 11)); |
b6721590 |
219 | } else if (strtolower(substr($line,0,9)) == 'x-mailer:') { |
220 | $hdr->xmailer = trim(substr($line, 9)); |
221 | } |
cc316430 |
222 | $i++; |
223 | break; |
224 | default: |
225 | $i++; |
226 | break; |
227 | } |
228 | } |
229 | return $hdr; |
230 | } |
231 | |
232 | /** |
233 | * function to process addresses. |
234 | */ |
235 | function sqimap_parse_address($address, $ar, $addr_ar = array(), $group = '') { |
236 | $pos = 0; |
237 | $j = strlen( $address ); |
238 | $name = ''; |
239 | $addr = ''; |
240 | |
241 | while ( $pos < $j ) { |
242 | if ($address{$pos} == '"') { /* get the personal name */ |
243 | $pos++; |
244 | while ( $address{$pos} != '"' && |
245 | $pos < $j ) { |
246 | if (substr($address, $pos, 2) == '\\"') { |
247 | $name .= $address{$pos}; |
248 | $pos++; |
249 | } elseif (substr($address, $pos, 2) == '\\\\') { |
250 | $name .= $address{$pos}; |
251 | $pos++; |
252 | } |
253 | $name .= $address{$pos}; |
254 | $pos++; |
255 | } |
256 | } elseif ($address{$pos} == '<') { /* get email address */ |
257 | $addr_start=$pos; |
258 | $pos++; |
259 | while ( $address{$pos} != '>' && |
260 | $pos < $j ) { |
261 | $addr .= $address{$pos}; |
262 | $pos++; |
263 | } |
264 | } elseif ($address{$pos} == '(') { /* rip off comments */ |
265 | $addr_start=$pos; |
266 | $pos++; |
267 | while ( $address{$pos} != ')' && |
268 | $pos < $j ) { |
269 | $addr .= $address{$pos}; |
270 | $pos++; |
271 | } |
272 | $address_start = substr($address,0,$addr_start); |
273 | $address_end = substr($address,$pos+1); |
274 | $address = $address_start . $address_end; |
275 | $j = strlen( $address ); |
276 | $pos = $addr_start; |
277 | } elseif ( $address{$pos} == ',' ) { /* we reached a delimiter */ |
278 | if ($addr == '') { |
279 | $addr = substr($address,0,$pos); |
280 | } elseif ($name == '') { |
281 | $name = substr($address,0,$addr_start); |
282 | } |
283 | $at = strpos($addr, '@'); |
284 | $addr_structure = new address_structure(); |
285 | $addr_structure->personal = $name; |
286 | $addr_structure->group = $group; |
287 | |
288 | if ($at) { |
289 | $addr_structure->mailbox = substr($addr,0,$at); |
290 | $addr_structure->host = substr($addr,$at+1); |
291 | } else { |
292 | $addr_structure->mailbox = $addr; |
293 | } |
294 | $address = substr($address,$pos+1); |
295 | $j = strlen( $address ); |
296 | $pos = 0; |
297 | $name = ''; |
298 | $addr = ''; |
299 | $addr_ar[] = $addr_structure; |
300 | |
301 | } elseif ( $address{$pos} == ":" ) { /* process the group addresses */ |
302 | /* group marker */ |
303 | $group = substr($address,0,$pos); |
304 | $address = substr($address,$pos+1); |
305 | $result = sqimap_parse_address($address, $ar, $addr_ar, $group); |
306 | $addr_ar = $result[0]; |
307 | $pos = $result[1]; |
308 | $address = substr($address,$pos); |
309 | $j = strlen( $address ); |
310 | $group = ''; |
311 | } elseif ($address{$pos} == ';' && $group ) { |
312 | $address = substr($address, 0, $pos-1); |
313 | break; |
314 | } |
315 | $pos++; |
316 | } |
317 | if ($addr == '') { |
318 | $addr = substr($address,0,$pos); |
319 | } elseif ($name == '') { |
320 | $name = substr($address,0,$addr_start); |
321 | } |
322 | $at = strpos($addr, '@'); |
323 | $addr_structure = new address_structure(); |
324 | $addr_structure->group = $group; |
325 | if ($at) { |
326 | $addr_structure->mailbox = trim(substr($addr,0,$at)); |
327 | $addr_structure->host = trim(substr($addr,$at+1)); |
328 | } else { |
329 | $addr_structure->mailbox = trim($addr); |
330 | } |
331 | |
332 | if ($group && $addr == '') { /* no addresses found in group */ |
333 | $name = "$group: Undisclosed recipients;"; |
334 | $addr_structure->personal = $name; |
335 | $addr_ar[] = $addr_structure; |
336 | return (array($addr_ar,$pos+1)); |
337 | } else { |
338 | $addr_structure->personal = $name; |
339 | if ($name || $addr) { |
340 | $addr_ar[] = $addr_structure; |
341 | } |
342 | } |
343 | if ($ar) { |
344 | return ($addr_ar); |
345 | } else { |
346 | return ($addr_ar[0]); |
347 | } |
348 | |
349 | } |
8686f4b2 |
350 | ?> |