| 1 | <? |
| 2 | /** mime.php |
| 3 | ** |
| 4 | ** This contains the functions necessary to detect and decode MIME messages. |
| 5 | **/ |
| 6 | |
| 7 | |
| 8 | function decodeMime($body, $bound, $type0, $type1) { |
| 9 | if ($type0 == "multipart") { |
| 10 | if ($body[0] == "") |
| 11 | $i = 1; |
| 12 | else |
| 13 | $i = 0; |
| 14 | |
| 15 | $bound = trim($bound); |
| 16 | $bound = "--$bound"; |
| 17 | while ($i < count($body)) { |
| 18 | if (trim($body[$i]) == $bound) { |
| 19 | $j = $i + 1; |
| 20 | $p = 0; |
| 21 | |
| 22 | while ((substr(trim($body[$j]), 0, strlen($bound)) != $bound) && (trim($body[$j]) != "")) { |
| 23 | $entity_header[$p] = $body[$j]; |
| 24 | $j++; |
| 25 | $p++; |
| 26 | } |
| 27 | |
| 28 | fetchEntityHeader($imapConnection, $entity_header, $ent_type0, $ent_type1, $ent_bound, $encoding, $charset, $filename); |
| 29 | |
| 30 | if ($ent_type0 == "text") { |
| 31 | while (substr(trim($body[$j]), 0, strlen($bound)) != $bound) { |
| 32 | $entity_body[$p] = $body[$j]; |
| 33 | $j++; |
| 34 | $p++; |
| 35 | } |
| 36 | } else { |
| 37 | $j++; |
| 38 | $entity_body = ""; |
| 39 | while (substr(trim($body[$j]), 0, strlen($bound)) != $bound) { |
| 40 | $entity_body .= $body[$j]; |
| 41 | $j++; |
| 42 | } |
| 43 | } |
| 44 | $entity = getEntity($entity_body, $ent_bound, $ent_type0, $ent_type1, $encoding, $charset, $filename); |
| 45 | |
| 46 | $q = count($full_message); |
| 47 | $full_message[$q] = $entity[0]; |
| 48 | } |
| 49 | $i++; |
| 50 | } |
| 51 | } else { |
| 52 | $full_message = getEntity($body, $bound, $type0, $type1); |
| 53 | } |
| 54 | |
| 55 | return $full_message; |
| 56 | } |
| 57 | |
| 58 | /** This gets one entity's properties **/ |
| 59 | function getEntity($body, $bound, $type0, $type1, $encoding, $charset, $filename) { |
| 60 | $msg[0]["TYPE0"] = $type0; |
| 61 | $msg[0]["TYPE1"] = $type1; |
| 62 | $msg[0]["ENCODING"] = $encoding; |
| 63 | $msg[0]["CHARSET"] = $charset; |
| 64 | $msg[0]["FILENAME"] = $filename; |
| 65 | |
| 66 | if ($type0 == "text") { |
| 67 | // error correcting if they didn't follow RFC standards |
| 68 | if (trim($type1) == "") |
| 69 | $type1 = "plain"; |
| 70 | |
| 71 | if ($type1 == "plain") { |
| 72 | for ($p = 0;$p < count($body);$p++) { |
| 73 | $msg[0]["BODY"][$p] = parsePlainTextMessage($body[$p]); |
| 74 | } |
| 75 | } else { |
| 76 | $msg[0]["BODY"] = $body; |
| 77 | } |
| 78 | } else { |
| 79 | $msg[0]["BODY"][0] = $body; |
| 80 | } |
| 81 | |
| 82 | return $msg; |
| 83 | } |
| 84 | |
| 85 | function containsType($message, $type0, $type1, &$ent_num) { |
| 86 | $type0 = strtolower($type0); |
| 87 | $type1 = strtolower($type1); |
| 88 | for ($i = 0; $i < count($message["ENTITIES"]); $i++) { |
| 89 | /** Check only on type0 **/ |
| 90 | if ( $type1 == "any_type" ) { |
| 91 | if ( ($message["ENTITIES"][$i]["TYPE0"] == $type0) ) { |
| 92 | $ent_num = $i; |
| 93 | return true; |
| 94 | } |
| 95 | |
| 96 | /** Check on type0 and type1 **/ |
| 97 | } else { |
| 98 | if ( ($message["ENTITIES"][$i]["TYPE0"] == $type0) && ($message["ENTITIES"][$i]["TYPE1"] == $type1) ) { |
| 99 | $ent_num = $i; |
| 100 | return true; |
| 101 | } |
| 102 | } |
| 103 | } |
| 104 | return false; |
| 105 | } |
| 106 | |
| 107 | function formatBody($message) { |
| 108 | if (containsType($message, "text", "html", $ent_num)) { |
| 109 | $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]); |
| 110 | } else if (containsType($message, "text", "plain", $ent_num)) { |
| 111 | $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]); |
| 112 | } // add other primary displaying message types here |
| 113 | |
| 114 | else { |
| 115 | // find any type that's displayable |
| 116 | if (containsType($message, "text", "any_type", $ent_num)) { |
| 117 | $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]); |
| 118 | } else if (containsType($message, "message", "any_type", $ent_num)) { |
| 119 | $body = decodeBody($message["ENTITIES"][$ent_num]["BODY"], $message["ENTITIES"][$ent_num]["ENCODING"]); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | |
| 124 | /** Display the ATTACHMENTS: message if there's more than one part **/ |
| 125 | if (count($message["ENTITIES"]) > 1) { |
| 126 | $pos = count($body); |
| 127 | $body[$pos] .= "<BR><TT><U><B>ATTACHMENTS:</B></U></TT><BR>"; |
| 128 | $num = 0; |
| 129 | |
| 130 | for ($i = 0; $i < count($message["ENTITIES"]); $i++) { |
| 131 | /** If we've displayed this entity, go to the next one **/ |
| 132 | if ($ent_num == $i) |
| 133 | continue; |
| 134 | |
| 135 | $type0 = strtolower($message["ENTITIES"][$i]["TYPE0"]); |
| 136 | $type1 = strtolower($message["ENTITIES"][$i]["TYPE1"]); |
| 137 | |
| 138 | $num++; |
| 139 | $filename = $message["ENTITIES"][$i]["FILENAME"]; |
| 140 | if (trim($filename) == "") { |
| 141 | $filename = "UNKNOWN_FORMAT_" . time() . $i; |
| 142 | $display_filename = "Attachment $i"; |
| 143 | } else { |
| 144 | $display_filename = $filename; |
| 145 | } |
| 146 | |
| 147 | $body[$pos] .= "<TT> <A HREF=\"../data/$filename\">" . $display_filename . "</A> <SMALL>(TYPE: $type0/$type1)</SMALL></TT><BR>"; |
| 148 | $file = fopen("../data/$filename", "w"); |
| 149 | |
| 150 | /** Determine what encoding type is used **/ |
| 151 | if ($message["ENTITIES"][$i]["ENCODING"] == "base64") { |
| 152 | $thefile = base64_decode($message["ENTITIES"][$i]["BODY"][0]); |
| 153 | } else { |
| 154 | $thefile = $message["ENTITIES"][$i]["BODY"][0]; |
| 155 | } |
| 156 | |
| 157 | fwrite($file, $thefile); |
| 158 | fclose($file); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | return $body; |
| 163 | } |
| 164 | |
| 165 | function decodeBody($body, $encoding) { |
| 166 | $encoding = strtolower($encoding); |
| 167 | if ($encoding == "us-ascii") { |
| 168 | $newbody = $body; // if only they all were this easy |
| 169 | } else if ($encoding == "quoted-printable") { |
| 170 | for ($q=0; $q < count($body); $q++) { |
| 171 | if (substr(trim($body[$q]), -1) == "=") { |
| 172 | $body[$q] = trim($body[$q]); |
| 173 | $body[$q] = substr($body[$q], 0, strlen($body[$q])-1); |
| 174 | } else if (substr(trim($body[$q]), -3) == "=20") { |
| 175 | $body[$q] = trim($body[$q]); |
| 176 | $body[$q] = substr($body[$q], 0, strlen($body[$q])-3); |
| 177 | $body[$q] = "$body[$q]\n"; // maybe should be \n.. dunno |
| 178 | } |
| 179 | } |
| 180 | for ($q=0;$q < count($body);$q++) { |
| 181 | $body[$q] = ereg_replace("=3D", "=", $body[$q]); |
| 182 | } |
| 183 | $newbody = $body; |
| 184 | } else { |
| 185 | $newbody = $body; |
| 186 | } |
| 187 | return $newbody; |
| 188 | } |
| 189 | ?> |