Initial revision

1 files changed, 322 insertions, 0 deletions

diff --git a/program/lib/mime.inc b/program/lib/mime.inc
new file mode 100644
index 000000000..ad6561ed7
--- /dev/null
+++ b/program/lib/mime.inc
@@ -0,0 +1,322 @@
+<?php
+/////////////////////////////////////////////////////////
+//	
+//	Iloha MIME Library (IML)
+//
+//	(C)Copyright 2002 Ryo Chijiiwa <Ryo@IlohaMail.org>
+//
+//	This file is part of IlohaMail. IlohaMail is free software released 
+//	under the GPL license.  See enclosed file COPYING for details, or 
+//	see http://www.fsf.org/copyleft/gpl.html
+//
+/////////////////////////////////////////////////////////
+
+/********************************************************
+
+	FILE: include/mime.inc
+	PURPOSE:
+		Provide functions for handling mime messages.
+	USAGE:
+		Use iil_C_FetchStructureString to get IMAP structure stirng, then pass that through
+		iml_GetRawStructureArray() to get root node to a nested data structure.
+		Pass root node to the iml_GetPart*() functions to retreive individual bits of info.
+
+********************************************************/
+$MIME_INVALID = -1;
+$MIME_TEXT = 0;
+$MIME_MULTIPART = 1;
+$MIME_MESSAGE = 2;
+$MIME_APPLICATION = 3;
+$MIME_AUDIO = 4;
+$MIME_IMAGE = 5;
+$MIME_VIDEO = 6;
+$MIME_OTHER = 7;
+
+function iml_ClosingParenPos($str, $start){
+    $level=0;
+    $len = strlen($str);
+    $in_quote = 0;
+    for ($i=$start;$i<$len;$i++){
+    	if ($str[$i]=="\"") $in_quote = ($in_quote + 1) % 2;
+    	if (!$in_quote){
+        	if ($str[$i]=="(") $level++;
+        	else if (($level > 0) && ($str[$i]==")")) $level--;
+        	else if (($level == 0) && ($str[$i]==")")) return $i;
+    	}
+    }
+}
+
+function iml_ParseBSString($str){	
+    
+    $id = 0;
+    $a = array();
+    $len = strlen($str);
+    
+    $in_quote = 0;
+    for ($i=0; $i<$len; $i++){
+        if ($str[$i] == "\"") $in_quote = ($in_quote + 1) % 2;
+        else if (!$in_quote){
+            if ($str[$i] == " ") $id++; //space means new element
+            else if ($str[$i]=="("){ //new part
+                $i++;
+                $endPos = iml_ClosingParenPos($str, $i);
+                $partLen = $endPos - $i;
+                $part = substr($str, $i, $partLen);
+                $a[$id] = iml_ParseBSString($part); //send part string
+                if ($verbose){
+					echo "{>".$endPos."}";
+					flush();
+				}
+                $i = $endPos;
+            }else $a[$id].=$str[$i]; //add to current element in array
+        }else if ($in_quote){
+            if ($str[$i]=="\\") $i++; //escape backslashes
+            else $a[$id].=$str[$i]; //add to current element in array
+        }
+    }
+        
+    reset($a);
+    return $a;
+}
+
+function iml_GetRawStructureArray($str){
+    $line=substr($str, 1, strlen($str) - 2);
+    $line = str_replace(")(", ") (", $line);
+	
+	$struct = iml_ParseBSString($line);
+	if ((strcasecmp($struct[0], "message")==0) && (strcasecmp($struct[1], "rfc822")==0)){
+		$struct = array($struct);
+	}
+    return $struct;
+}
+
+function iml_GetPartArray($a, $part){
+	if (!is_array($a)) return false;
+	if (strpos($part, ".") > 0){
+		$original_part = $part;
+		$pos = strpos($part, ".");
+		$rest = substr($original_part, $pos+1);
+		$part = substr($original_part, 0, $pos);
+		if ((strcasecmp($a[0], "message")==0) && (strcasecmp($a[1], "rfc822")==0)){
+			$a = $a[8];
+		}
+		//echo "m - part: $original_part current: $part rest: $rest array: ".implode(" ", $a)."<br>\n";
+		return iml_GetPartArray($a[$part-1], $rest);
+	}else if ($part>0){
+		if ((strcasecmp($a[0], "message")==0) && (strcasecmp($a[1], "rfc822")==0)){
+			$a = $a[8];
+		}
+		//echo "s - part: $part rest: $rest array: ".implode(" ", $a)."<br>\n";
+		if (is_array($a[$part-1])) return $a[$part-1];
+		else return false;
+	}else if (($part==0) || (empty($part))){
+		return $a;
+	}
+}
+
+function iml_GetNumParts($a, $part){
+	if (is_array($a)){
+		$parent=iml_GetPartArray($a, $part);
+		
+		if ((strcasecmp($parent[0], "message")==0) && (strcasecmp($parent[1], "rfc822")==0)){
+			$parent = $parent[8];
+		}
+
+		$is_array=true;
+		$c=0;
+		while (( list ($key, $val) = each ($parent) )&&($is_array)){
+			$is_array=is_array($parent[$key]);
+			if ($is_array) $c++;
+		}
+		return $c;
+	}
+	
+	return false;
+}
+
+function iml_GetPartTypeString($a, $part){
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])){
+			$type_str = "MULTIPART/";
+			reset($part_a);
+			while(list($n,$element)=each($part_a)){
+				if (!is_array($part_a[$n])){
+					$type_str.=$part_a[$n];
+					break;
+				}
+			}
+			return $type_str;
+		}else return $part_a[0]."/".$part_a[1];
+	}else return false;
+}
+
+function iml_GetFirstTextPart($structure,$part){
+    if ($part==0) $part="";
+    $typeCode = -1;
+    while ($typeCode!=0){
+        $typeCode = iml_GetPartTypeCode($structure, $part);
+        if ($typeCode == 1){
+            $part .= (empty($part)?"":".")."1";
+        }else if ($typeCode > 0){
+            $parts_a = explode(".", $part);
+            $lastPart = count($parts_a) - 1;
+            $parts_a[$lastPart] = (int)$parts_a[$lastPart] + 1;
+            $part = implode(".", $parts_a);
+        }else if ($typeCode == -1){
+            return "";
+        }
+    }
+    
+    return $part;
+}
+
+function iml_GetPartTypeCode($a, $part){
+	$types=array(0=>"text",1=>"multipart",2=>"message",3=>"application",4=>"audio",5=>"image",6=>"video",7=>"other");
+
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])) $str="multipart";
+		else $str=$part_a[0];
+
+		$code=7;
+		while ( list($key, $val) = each($types)) if (strcasecmp($val, $str)==0) $code=$key;
+		return $code;
+	}else return -1;
+}
+
+function iml_GetPartEncodingCode($a, $part){
+	$encodings=array("7BIT", "8BIT", "BINARY", "BASE64", "QUOTED-PRINTABLE", "OTHER");
+
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])) return -1;
+		else $str=$part_a[5];
+
+		$code=5;
+		while ( list($key, $val) = each($encodings)) if (strcasecmp($val, $str)==0) $code=$key;
+
+		return $code;
+
+	}else return -1;
+}
+
+function iml_GetPartEncodingString($a, $part){
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])) return -1;
+		else return $part_a[5];
+	}else return -1;
+}
+
+function iml_GetPartSize($a, $part){
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])) return -1;
+		else return $part_a[6];
+	}else return -1;
+}
+
+function iml_GetPartID($a, $part){
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])) return -1;
+		else return $part_a[3];
+	}else return -1;
+}
+
+function iml_GetPartDisposition($a, $part){
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])) return -1;
+		else{
+            $id = count($part_a) - 2;
+			if (is_array($part_a[$id])) return $part_a[$id][0];
+			else return "";
+		}
+	}else return "";
+}
+
+function iml_GetPartName($a, $part){
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])) return -1;
+		else{
+            $name = "";
+			if (is_array($part_a[2])){
+                //first look in content type
+				$name="";
+				while ( list($key, $val) = each ($part_a[2])){
+                    if ((strcasecmp($val, "NAME")==0)||(strcasecmp($val, "FILENAME")==0)) 
+                        $name=$part_a[2][$key+1];
+                }
+			}
+            if (empty($name)){
+                //check in content disposition
+                $id = count($part_a) - 2;
+                if ((is_array($part_a[$id])) && (is_array($part_a[$id][1]))){
+                    $array = $part_a[$id][1];
+                    while ( list($key, $val) = each($array)){
+                        if ((strcasecmp($val, "NAME")==0)||(strcasecmp($val, "FILENAME")==0)) 
+                            $name=$array[$key+1];
+                    }
+                }
+            }
+			return $name;
+		}
+	}else return "";
+}
+
+
+function iml_GetPartCharset($a, $part){
+	$part_a=iml_GetPartArray($a, $part);
+	if ($part_a){
+		if (is_array($part_a[0])) return -1;
+		else{
+			if (is_array($part_a[2])){
+				$name="";
+				while ( list($key, $val) = each ($part_a[2])) if (strcasecmp($val, "charset")==0) $name=$part_a[2][$key+1];
+				return $name;
+			}
+			else return "";
+		}
+	}else return "";
+}
+
+function iml_GetPartList($a, $part){
+	//echo "MOO?"; flush();
+	$data = array();
+	$num_parts = iml_GetNumParts($a, $part);
+	//echo "($num_parts)"; flush();
+	if ($num_parts !== false){
+		//echo "<!-- ($num_parts parts)//-->\n";
+		for ($i = 0; $i<$num_parts; $i++){
+			$part_code = $part.(empty($part)?"":".").($i+1);
+			$part_type = iml_GetPartTypeCode($a, $part_code);
+			$part_disposition = iml_GetPartDisposition($a, $part_code);
+			//echo "<!-- part: $part_code type: $part_type //-->\n";
+			if (strcasecmp($part_disposition, "attachment")!=0 && 
+				(($part_type == 1) || ($part_type==2))){
+				$data = array_merge($data, iml_GetPartList($a, $part_code));
+			}else{
+				$data[$part_code]["typestring"] = iml_GetPartTypeString($a, $part_code);
+				$data[$part_code]["disposition"] = $part_disposition;
+				$data[$part_code]["size"] = iml_GetPartSize($a, $part_code);
+				$data[$part_code]["name"] = iml_GetPartName($a, $part_code);
+				$data[$part_code]["id"] = iml_GetPartID($a, $part_code);
+			}
+		}
+	}
+	return $data;
+}
+
+function iml_GetNextPart($part){
+	if (strpos($part, ".")===false) return $part++;
+	else{
+		$parts_a = explode(".", $part);
+		$num_levels = count($parts_a);
+		$parts_a[$num_levels-1]++;
+		return implode(".", $parts_a);
+	}
+}
+?>
\ No newline at end of file