fixed problems with viewing messages ending with a )
[squirrelmail.git] / functions / mime.php
CommitLineData
aceb0d5c 1<?
2 /** mime.php
3 **
4 ** This contains the functions necessary to detect and decode MIME messages.
5 **/
6
7
4809f489 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
10 **/
11 function decodeMime($body, $bound, $type0, $type1, &$entities) {
aceb0d5c 12 if ($type0 == "multipart") {
aceb0d5c 13 $bound = trim($bound);
f7835374 14 $i = 0;
4809f489 15 while (($i < count($body)) && (substr($body[$i], 0, strlen("--$bound--")) != "--$bound--")) {
16 if (trim($body[$i]) == "--$bound") {
17 $j = $i+1;
aceb0d5c 18 $p = 0;
19
4809f489 20 /** Lets find the header for this entity **/
21 /** If the first line after the boundary is blank, we use default values **/
22 if (trim($body[$j]) == "") {
23 $ent_type0 = "text";
24 $ent_type1 = "plain";
25 $charset = "us-ascii";
aceb0d5c 26 $j++;
4809f489 27 /** If the first line ISNT blank, read in the header for this entity **/
28 } else {
29 while ((substr(trim($body[$j]), 0, strlen("--$bound")) != "--$bound") && (trim($body[$j]) != "")) {
30 $entity_header[$p] = $body[$j];
31 $j++;
32 $p++;
33 }
34 /** All of these values are getting passed back to us **/
d29aac0e 35 sqimap_get_entity_header($imapConnection, $entity_header, $ent_type0, $ent_type1, $ent_bound, $encoding, $charset, $filename);
aceb0d5c 36 }
bcb432a3 37
bcb432a3 38
4809f489 39 /** OK, we have the header information, now lets decide what to do with it **/
40 if ($ent_type0 == "multipart") {
41 $y = 0;
42 while (substr($body[$j], 0, strlen("--$bound--")) != "--$bound--") {
43 $ent_body[$y] = $body[$j];
44 $y++;
45 $j++;
46 }
47 $ent = decodeMime($ent_body, $ent_bound, $ent_type0, $ent_type1, $entities);
48 $entities = $ent;
bcb432a3 49 } else {
7c9499e1 50 $j++;
51 $entity_body = "";
4809f489 52 while (substr(trim($body[$j]), 0, strlen("--$bound")) != "--$bound") {
bcb432a3 53 $entity_body .= $body[$j];
54 $j++;
55 }
4809f489 56 $count = count($entities);
57 $entities[$count] = getEntity($entity_body, $ent_bound, $ent_type0, $ent_type1, $encoding, $charset, $filename);
bcb432a3 58 }
aceb0d5c 59 }
60 $i++;
61 }
d4467150 62 } else {
7831268e 63 /** If this isn't a multipart message **/
64 $j = 0;
65 $entity_body = "";
78509c54 66 while ($j < count($body)) {
7831268e 67 $entity_body .= $body[$j];
68 $j++;
69 }
70
4809f489 71 $count = count($entities);
7831268e 72 $entities[$count] = getEntity($entity_body, $bound, $type0, $type1, $encoding, $charset, $filename);
d4467150 73 }
74
4809f489 75 return $entities;
d4467150 76 }
77
78 /** This gets one entity's properties **/
7c9499e1 79 function getEntity($body, $bound, $type0, $type1, $encoding, $charset, $filename) {
4809f489 80 $msg["TYPE0"] = $type0;
81 $msg["TYPE1"] = $type1;
82 $msg["ENCODING"] = $encoding;
83 $msg["CHARSET"] = $charset;
84 $msg["FILENAME"] = $filename;
d4467150 85
7831268e 86 $msg["BODY"] = $body;
aceb0d5c 87
d4467150 88 return $msg;
89 }
90
4809f489 91 /** This will check whether or not the message contains a certain type. It
92 searches through all the entities for a match.
93 **/
b1dadc61 94 function containsType($message, $type0, $type1, &$ent_num) {
95 $type0 = strtolower($type0);
96 $type1 = strtolower($type1);
d4467150 97 for ($i = 0; $i < count($message["ENTITIES"]); $i++) {
b1dadc61 98 /** Check only on type0 **/
99 if ( $type1 == "any_type" ) {
100 if ( ($message["ENTITIES"][$i]["TYPE0"] == $type0) ) {
101 $ent_num = $i;
102 return true;
103 }
104
105 /** Check on type0 and type1 **/
106 } else {
107 if ( ($message["ENTITIES"][$i]["TYPE0"] == $type0) && ($message["ENTITIES"][$i]["TYPE1"] == $type1) ) {
108 $ent_num = $i;
109 return true;
110 }
d4467150 111 }
112 }
b1dadc61 113 return false;
114 }
8405ee35 115
4809f489 116 /** This returns a parsed string called $body. That string can then be displayed
117 as the actual message in the HTML. It contains everything needed, including
118 HTML Tags, Attachments at the bottom, etc.
119 **/
a8648d75 120 function formatBody($message, $color, $wrap_at) {
7831268e 121
4809f489 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.
124 **/
7085fa78 125 $id = $message["INFO"]["ID"];
126 $urlmailbox = urlencode($message["INFO"]["MAILBOX"]);
7085fa78 127
b1dadc61 128 if (containsType($message, "text", "html", $ent_num)) {
a8648d75 129 $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]);
b1dadc61 130 } else if (containsType($message, "text", "plain", $ent_num)) {
a8648d75 131 $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]);
4809f489 132 }
133 // add other primary displaying message types here
b1dadc61 134 else {
135 // find any type that's displayable
136 if (containsType($message, "text", "any_type", $ent_num)) {
a8648d75 137 $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]);
b1dadc61 138 } else if (containsType($message, "message", "any_type", $ent_num)) {
a8648d75 139 $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]);
8405ee35 140 }
141 }
142
78509c54 143 /** If there are other types that shouldn't be formatted, add them here **/
144 if ($message["ENTITIES"][$ent_num]["TYPE1"] != "html")
a8648d75 145 $body = translateText($body, $wrap_at);
146
78509c54 147
9f9d7d28 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>";
7831268e 149
b1dadc61 150 /** Display the ATTACHMENTS: message if there's more than one part **/
151 if (count($message["ENTITIES"]) > 1) {
7831268e 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]\">";
b1dadc61 155 $num = 0;
156
157 for ($i = 0; $i < count($message["ENTITIES"]); $i++) {
158 /** If we've displayed this entity, go to the next one **/
159 if ($ent_num == $i)
160 continue;
161
162 $type0 = strtolower($message["ENTITIES"][$i]["TYPE0"]);
163 $type1 = strtolower($message["ENTITIES"][$i]["TYPE1"]);
164
165 $num++;
7c9499e1 166 $filename = $message["ENTITIES"][$i]["FILENAME"];
b1dadc61 167 if (trim($filename) == "") {
7085fa78 168 $display_filename = "untitled$i";
b1dadc61 169 } else {
170 $display_filename = $filename;
171 }
7c9499e1 172
97be2168 173 $urlMailbox = urlencode($message["INFO"]["MAILBOX"]);
174 $id = $message["INFO"]["ID"];
7831268e 175 $body .= "<TT>&nbsp;&nbsp;&nbsp;<A HREF=\"../src/download.php?passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$i\">" . $display_filename . "</A>&nbsp;&nbsp;<SMALL>(TYPE: $type0/$type1)</SMALL></TT><BR>";
8405ee35 176 }
7831268e 177 $body .= "</TD></TR></TABLE>";
8405ee35 178 }
d4467150 179 return $body;
180 }
181
4809f489 182
183
184 /** this function decodes the body depending on the encoding type. **/
d4467150 185 function decodeBody($body, $encoding) {
186 $encoding = strtolower($encoding);
7831268e 187
d4467150 188 if ($encoding == "us-ascii") {
189 $newbody = $body; // if only they all were this easy
7831268e 190
d4467150 191 } else if ($encoding == "quoted-printable") {
db87f79c 192 $body_ary = explode("\n", $body);
193
194 for ($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";
202 }
203 }
204
205 for ($q=0;$q < count($body_ary);$q++) {
206 $body_ary[$q] = ereg_replace("=3D", "=", $body_ary[$q]);
207 }
7831268e 208
db87f79c 209 $body = "";
210 for ($i = 0; $i < count($body_ary); $i++) {
211 $body .= "$body_ary[$i]\n";
212 }
213
214 $newbody = $body;
97be2168 215 } else if ($encoding == "base64") {
216 $newbody = base64_decode($body);
7831268e 217
d4467150 218 } else {
219 $newbody = $body;
220 }
221 return $newbody;
aceb0d5c 222 }
9f9d7d28 223?>