4 ** This contains the functions necessary to detect and decode MIME messages.
8 /** This is the first function called. It decides if this is a multipart
9 message or if it should be handled as a single entity
11 function decodeMime($body, $bound, $type0, $type1, &$entities) {
12 if ($type0 == "multipart") {
13 $bound = trim($bound);
15 while (($i < count($body)) && (substr($body[$i], 0, strlen("--$bound--")) != "--$bound--")) {
16 if (trim($body[$i]) == "--$bound") {
20 /** Lets find the header for this entity **/
21 /** If the first line after the boundary is blank, we use default values **/
22 if (trim($body[$j]) == "") {
25 $charset = "us-ascii";
27 /** If the first line ISNT blank, read in the header for this entity **/
29 while ((substr(trim($body[$j]), 0, strlen("--$bound")) != "--$bound") && (trim($body[$j]) != "")) {
30 $entity_header[$p] = $body[$j];
34 /** All of these values are getting passed back to us **/
35 sqimap_get_entity_header($imapConnection, $entity_header, $ent_type0, $ent_type1, $ent_bound, $encoding, $charset, $filename);
39 /** OK, we have the header information, now lets decide what to do with it **/
40 if ($ent_type0 == "multipart") {
42 while (substr($body[$j], 0, strlen("--$bound--")) != "--$bound--") {
43 $ent_body[$y] = $body[$j];
47 $ent = decodeMime($ent_body, $ent_bound, $ent_type0, $ent_type1, $entities);
52 while (substr(trim($body[$j]), 0, strlen("--$bound")) != "--$bound") {
53 $entity_body .= $body[$j];
56 $count = count($entities);
57 $entities[$count] = getEntity($entity_body, $ent_bound, $ent_type0, $ent_type1, $encoding, $charset, $filename);
63 /** If this isn't a multipart message **/
66 while ($j < count($body)) {
67 $entity_body .= $body[$j];
71 $count = count($entities);
72 $entities[$count] = getEntity($entity_body, $bound, $type0, $type1, $encoding, $charset, $filename);
78 /** This gets one entity's properties **/
79 function getEntity($body, $bound, $type0, $type1, $encoding, $charset, $filename) {
80 $msg["TYPE0"] = $type0;
81 $msg["TYPE1"] = $type1;
82 $msg["ENCODING"] = $encoding;
83 $msg["CHARSET"] = $charset;
84 $msg["FILENAME"] = $filename;
91 /** This will check whether or not the message contains a certain type. It
92 searches through all the entities for a match.
94 function containsType($message, $type0, $type1, &$ent_num) {
95 $type0 = strtolower($type0);
96 $type1 = strtolower($type1);
97 for ($i = 0; $i < count($message["ENTITIES"]); $i++
) {
98 /** Check only on type0 **/
99 if ( $type1 == "any_type" ) {
100 if ( ($message["ENTITIES"][$i]["TYPE0"] == $type0) ) {
105 /** Check on type0 and type1 **/
107 if ( ($message["ENTITIES"][$i]["TYPE0"] == $type0) && ($message["ENTITIES"][$i]["TYPE1"] == $type1) ) {
116 /** This returns a parsed string called $body. That string can then be displayed
117 as the actual message in the HTML. It contains everything needed, including
118 HTML Tags, Attachments at the bottom, etc.
120 function formatBody($message, $color, $wrap_at) {
122 /** this if statement checks for the entity to show as the primary message. To
123 add more of them, just put them in the order that is their priority.
125 $id = $message["INFO"]["ID"];
126 $urlmailbox = urlencode($message["INFO"]["MAILBOX"]);
128 if (containsType($message, "text", "html", $ent_num)) {
129 $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]);
130 } else if (containsType($message, "text", "plain", $ent_num)) {
131 $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]);
133 // add other primary displaying message types here
135 // find any type that's displayable
136 if (containsType($message, "text", "any_type", $ent_num)) {
137 $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]);
138 } else if (containsType($message, "message", "any_type", $ent_num)) {
139 $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]);
143 /** If there are other types that shouldn't be formatted, add them here **/
144 if ($message["ENTITIES"][$ent_num]["TYPE1"] != "html")
145 $body = translateText($body, $wrap_at);
148 $body .= "<BR><SMALL><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$ent_num&mailbox=$urlmailbox\">". _("Download this as a file") ."</A></CENTER><BR></SMALL>";
150 /** Display the ATTACHMENTS: message if there's more than one part **/
151 if (count($message["ENTITIES"]) > 1) {
152 $body .= "<TABLE WIDTH=100% CELLSPACING=0 CELLPADDING=4 BORDER=0><TR><TD BGCOLOR=\"$color[0]\">";
153 $body .= "<TT><B>ATTACHMENTS:</B></TT>";
154 $body .= "</TD></TR><TR><TD BGCOLOR=\"$color[0]\">";
157 for ($i = 0; $i < count($message["ENTITIES"]); $i++
) {
158 /** If we've displayed this entity, go to the next one **/
162 $type0 = strtolower($message["ENTITIES"][$i]["TYPE0"]);
163 $type1 = strtolower($message["ENTITIES"][$i]["TYPE1"]);
166 $filename = $message["ENTITIES"][$i]["FILENAME"];
167 if (trim($filename) == "") {
168 $display_filename = "untitled$i";
170 $display_filename = $filename;
173 $urlMailbox = urlencode($message["INFO"]["MAILBOX"]);
174 $id = $message["INFO"]["ID"];
175 $body .= "<TT> <A HREF=\"../src/download.php?passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$i\">" . $display_filename . "</A> <SMALL>(TYPE: $type0/$type1)</SMALL></TT><BR>";
177 $body .= "</TD></TR></TABLE>";
184 /** this function decodes the body depending on the encoding type. **/
185 function decodeBody($body, $encoding) {
186 $encoding = strtolower($encoding);
188 if ($encoding == "us-ascii") {
189 $newbody = $body; // if only they all were this easy
191 } else if ($encoding == "quoted-printable") {
192 $body_ary = explode("\n", $body);
194 for ($q=0; $q < count($body_ary); $q++
) {
195 if (substr(trim($body_ary[$q]), -1) == "=") {
196 $body_ary[$q] = trim($body_ary[$q]);
197 $body_ary[$q] = substr($body_ary[$q], 0, strlen($body_ary[$q])-1);
198 } else if (substr(trim($body_ary[$q]), -3) == "=20") {
199 $body_ary[$q] = trim($body_ary[$q]);
200 $body_ary[$q] = substr($body_ary[$q], 0, strlen($body_ary[$q])-3);
201 $body_ary[$q] = "$body_ary[$q]\n";
205 for ($q=0;$q < count($body_ary);$q++
) {
206 $body_ary[$q] = ereg_replace("=3D", "=", $body_ary[$q]);
210 for ($i = 0; $i < count($body_ary); $i++
) {
211 $body .= "$body_ary[$i]\n";
215 } else if ($encoding == "base64") {
216 $newbody = base64_decode($body);
225 // This functions decode strings that is encoded according to
226 // RFC1522 (MIME Part Two: Message Header Extensions for Non-ASCII Text).
227 function rfc1522Decode ($string) {
228 // Recognizing only US-ASCII and ISO-8859. Other charsets should
229 // probably be recognized as well.
230 if (eregi('=\?(us-ascii|iso-8859-([0-9])+)\?(q|b)\?([^?]+)\?=',
232 if (ucfirst($res[3]) == "B") {
233 $replace = base64_decode($res[4]);
235 $replace = ereg_replace("_", " ", $res[4]);
236 $replace = quoted_printable_decode($replace);
239 // Only US-ASCII and ISO-8859-1 can be displayed without further ado
240 if ($res[2] != "" && $res[2] != "1") {
241 // This get rid of all characters with over 0x9F
242 $replace = strtr($replace, "\240\241\242\243\244\245\246\247".
243 "\250\251\252\253\254\255\256\257".
244 "\260\261\262\263\264\265\266\267".
245 "\270\271\272\273\274\275\276\277".
246 "\300\301\302\303\304\305\306\307".
247 "\310\311\312\313\314\315\316\317".
248 "\320\321\322\323\324\325\326\327".
249 "\330\331\332\333\334\335\336\337".
250 "\340\341\342\343\344\345\346\347".
251 "\350\351\352\353\354\355\356\357".
252 "\360\361\362\363\364\365\366\367".
253 "\370\371\372\373\374\375\376\377",
254 "????????????????????????????????????????".
255 "????????????????????????????????????????".
256 "????????????????????????????????????????".
260 $string = eregi_replace
261 ('=\?(us-ascii|iso-8859-([0-9])+)\?(q|b)\?([^?]+)\?=',
264 return (rfc1522Decode($string));