-/*
- Copyright (C) 2004-2005 SKYRIX Software AG
+/* UIxMailPartHTMLViewer.m - this file is part of SOGo
+ *
+ * Copyright (C) 2007 Inverse groupe conseil
+ *
+ * Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
- This file is part of OpenGroupware.org.
+#import <Foundation/NSArray.h>
+#import <Foundation/NSDictionary.h>
+#import <SaxObjC/SaxAttributes.h>
+#import <SaxObjC/SaxContentHandler.h>
+#import <SaxObjC/SaxLexicalHandler.h>
+#import <SaxObjC/SaxXMLReader.h>
+#import <SaxObjC/SaxXMLReaderFactory.h>
+#import <NGExtensions/NSString+misc.h>
+#import <NGObjWeb/SoObjects.h>
- OGo is free software; you can redistribute it and/or modify it under
- the terms of the GNU Lesser General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
+#import "UIxMailPartHTMLViewer.h"
- OGo is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- License for more details.
+#define showWhoWeAre() NSLog(@"invoked '%@'", NSStringFromSelector(_cmd))
- You should have received a copy of the GNU Lesser General Public
- License along with OGo; see the file COPYING. If not, write to the
- Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-*/
+@interface _UIxHTMLMailContentHandler : NSObject <SaxContentHandler, SaxLexicalHandler>
+{
+ NSMutableString *result;
+ NSMutableString *css;
+ NSDictionary *attachmentIds;
+ BOOL inBody;
+ BOOL inStyle;
+ BOOL inScript;
+ BOOL inCSSDeclaration;
+ BOOL hasEmbeddedCSS;
+ NSMutableArray *crumb;
+}
-#include "UIxMailPartLinkViewer.h"
+- (NSString *) result;
-@interface UIxMailPartHTMLViewer : UIxMailPartLinkViewer
@end
-#include "common.h"
+@implementation _UIxHTMLMailContentHandler
+
+- (id) init
+{
+ if ((self = [super init]))
+ {
+ crumb = nil;
+ css = nil;
+ result = nil;
+ attachmentIds = nil;
+ }
+
+ return self;
+}
+
+- (void) dealloc
+{
+ if (crumb)
+ [crumb release];
+ if (result)
+ [result release];
+ if (css)
+ [css release];
+ [super dealloc];
+}
+
+- (void) setAttachmentIds: (NSDictionary *) newAttachmentIds
+{
+ attachmentIds = newAttachmentIds;
+}
+
+- (NSString *) css
+{
+ return [[css copy] autorelease];
+}
+
+- (NSString *) result
+{
+ return [[result copy] autorelease];
+}
+
+/* SaxContentHandler */
+- (void) startDocument
+{
+ if (crumb)
+ [crumb release];
+ if (result)
+ [result release];
+ if (css)
+ [css release];
+
+ result = [NSMutableString new];
+ css = [NSMutableString new];
+ crumb = [NSMutableArray new];
+ inBody = NO;
+ inStyle = NO;
+ inScript = NO;
+ inCSSDeclaration = NO;
+ hasEmbeddedCSS = NO;
+}
+
+- (void) endDocument
+{
+ unsigned int count, max;
+
+ max = [crumb count];
+ if (max > 0)
+ for (count = max - 1; count > -1; count--)
+ {
+ [result appendFormat: @"</%@>", [crumb objectAtIndex: count]];
+ [crumb removeObjectAtIndex: count];
+ }
+}
+
+- (void) startPrefixMapping: (NSString *)_prefix
+ uri: (NSString *)_uri
+{
+ showWhoWeAre();
+}
+
+- (void) endPrefixMapping: (NSString *)_prefix
+{
+ showWhoWeAre();
+}
+
+- (void) _appendStyle: (unichar *) _chars
+ length: (int) _len
+{
+ unsigned int count;
+ unichar *start, *currentChar;
+
+ start = _chars;
+ currentChar = start;
+ for (count = 0; count < _len; count++)
+ {
+ currentChar = _chars + count;
+ if (inCSSDeclaration)
+ {
+ if (*(char *) currentChar == '}')
+ {
+ inCSSDeclaration = NO;
+ hasEmbeddedCSS = NO;
+ }
+ }
+ else
+ {
+ if (*(char *) currentChar == '{')
+ inCSSDeclaration = YES;
+ if (*(char *) currentChar == ',')
+ hasEmbeddedCSS = NO;
+ else if (!hasEmbeddedCSS)
+ {
+ if (*(char *) currentChar == '@')
+ hasEmbeddedCSS = YES;
+ else
+ if (*(char *) currentChar > 32)
+ {
+ [css appendString: [NSString stringWithCharacters: start
+ length: (currentChar - start)]];
+ [css appendString: @".SOGoHTMLMail-CSS-Delimiter "];
+ hasEmbeddedCSS = YES;
+ start = currentChar;
+ }
+ }
+ }
+ }
+ [css appendString: [NSString stringWithCharacters: start
+ length: (currentChar - start)]];
+}
+
+- (void) startElement: (NSString *) _localName
+ namespace: (NSString *) _ns
+ rawName: (NSString *) _rawName
+ attributes: (id <SaxAttributes>) _attributes
+{
+ unsigned int count, max;
+ NSString *name, *value;
+ NSMutableString *resultPart;
+ BOOL skipAttribute;
+
+ if (inStyle || inScript)
+ ;
+ else if ([_localName caseInsensitiveCompare: @"body"] == NSOrderedSame)
+ inBody = YES;
+ else if ([_localName caseInsensitiveCompare: @"script"] == NSOrderedSame)
+ inScript = YES;
+ else if ([_localName caseInsensitiveCompare: @"style"] == NSOrderedSame)
+ inStyle = YES;
+ else if (inBody)
+ {
+ resultPart = [NSMutableString new];
+ [resultPart appendFormat: @"<%@", _rawName];
+
+ max = [_attributes count];
+ for (count = 0; count < max; count++)
+ {
+ skipAttribute = NO;
+ name = [_attributes nameAtIndex: count];
+ if ([[name lowercaseString] hasPrefix: @"on"])
+ skipAttribute = YES;
+ else if ([name caseInsensitiveCompare: @"src"] == NSOrderedSame)
+ {
+ value = [_attributes valueAtIndex: count];
+ if ([value hasPrefix: @"cid:"])
+ {
+ value = [attachmentIds
+ objectForKey: [value substringFromIndex: 4]];
+ skipAttribute = (value == nil);
+ }
+ else
+ skipAttribute = YES;
+ }
+ else
+ value = [_attributes valueAtIndex: count];
+ if (!skipAttribute)
+ [resultPart appendFormat: @" %@=\"%@\"",
+ name, [value stringByReplacingString: @"\""
+ withString: @"\\\""]];
+ }
+
+ [resultPart appendString: @">"];
+ [result appendString: resultPart];
+ }
+}
+
+- (void) endElement: (NSString *) _localName
+ namespace: (NSString *) _ns
+ rawName: (NSString *) _rawName
+{
+ if (inStyle)
+ {
+ if ([_localName caseInsensitiveCompare: @"style"] == NSOrderedSame)
+ {
+ inStyle = NO;
+ inCSSDeclaration = NO;
+ }
+ }
+ else if (inScript)
+ inScript = ([_localName caseInsensitiveCompare: @"script"] != NSOrderedSame);
+ else if (inBody)
+ {
+ if ([_localName caseInsensitiveCompare: @"body"] == NSOrderedSame)
+ inBody = NO;
+ else
+ [result appendFormat: @"</%@>", _localName];
+ }
+}
+
+- (void) characters: (unichar *) _chars
+ length: (int) _len
+{
+ NSString *tmpString;
+
+ if (!inScript)
+ {
+ if (inStyle)
+ [self _appendStyle: _chars length: _len];
+ if (inBody)
+ {
+ tmpString = [NSString stringWithCharacters: _chars length: _len];
+ [result appendString: [tmpString stringByEscapingHTMLString]];
+ }
+ }
+}
+
+- (void) ignorableWhitespace: (unichar *) _chars
+ length: (int) _len
+{
+ showWhoWeAre();
+}
+
+- (void) processingInstruction: (NSString *) _pi
+ data: (NSString *) _data
+{
+ showWhoWeAre();
+}
+
+- (void) setDocumentLocator: (id <NSObject, SaxLocator>) _locator
+{
+ showWhoWeAre();
+}
+
+- (void) skippedEntity: (NSString *) _entityName
+{
+ showWhoWeAre();
+}
+
+/* SaxLexicalHandler */
+- (void) comment: (unichar *) _chars
+ length: (int) _len
+{
+ if (inStyle)
+ [self _appendStyle: _chars length: _len];
+}
+
+- (void) startDTD: (NSString *) _name
+ publicId: (NSString *) _pub
+ systemId: (NSString *) _sys
+{
+ showWhoWeAre();
+}
+
+- (void) endDTD
+{
+ showWhoWeAre();
+}
+
+- (void) startEntity: (NSString *) _name
+{
+ showWhoWeAre();
+}
+
+- (void) endEntity: (NSString *) _name
+{
+ showWhoWeAre();
+}
+
+- (void) startCDATA
+{
+ showWhoWeAre();
+}
+
+- (void) endCDATA
+{
+ showWhoWeAre();
+}
+
+@end
+
+@interface NSDictionary (SOGoDebug)
+
+- (void) dump;
+
+@end
+
+@implementation NSDictionary (SOGoDebug)
+
+- (void) dump
+{
+ NSEnumerator *keys;
+ NSString *key;
+ NSMutableString *dump;
+
+ dump = [NSMutableString new];
+ [dump appendFormat: @"\nNSDictionary dump (%@):\n", self];
+ keys = [[self allKeys] objectEnumerator];
+ key = [keys nextObject];
+ while (key)
+ {
+ [dump appendFormat: @"%@: %@\n", key, [self objectForKey: key]];
+ key = [keys nextObject];
+ }
+ [dump appendFormat: @"--- end ---\n"];
+
+ NSLog (dump);
+ [dump release];
+}
+
+@end
@implementation UIxMailPartHTMLViewer
-@end /* UIxMailPartHTMLViewer */
+
+- (void) _convertReferencesForPart: (NSDictionary *) part
+ withCount: (unsigned int) count
+ andBaseURL: (NSString *) url
+ intoDictionary: (NSMutableDictionary *) attachmentIds
+{
+ NSString *bodyId;
+
+ bodyId = [part objectForKey: @"bodyId"];
+ if ([bodyId length] > 0)
+ {
+ NSLog(@"%@", part);
+ if ([bodyId hasPrefix: @"<"])
+ bodyId = [bodyId substringFromIndex: 1];
+ if ([bodyId hasSuffix: @">"])
+ bodyId = [bodyId substringToIndex: [bodyId length] - 1];
+ [attachmentIds setObject: [url stringByAppendingFormat: @"/%d", count]
+ forKey: bodyId];
+ }
+}
+
+- (NSDictionary *) _attachmentIds
+{
+ NSMutableDictionary *attachmentIds;
+ UIxMailPartViewer *parent;
+ unsigned int count, max;
+ NSMutableString *url;
+ NSString *baseURL;
+ NSArray *parts;
+
+ attachmentIds = [NSMutableDictionary new];
+ [attachmentIds autorelease];
+
+ parent = [self parent];
+ if ([NSStringFromClass ([parent class])
+ isEqualToString: @"UIxMailPartAlternativeViewer"])
+ {
+ baseURL = [[self clientObject] baseURLInContext: context];
+ url = [NSMutableString new];
+ [url appendString: baseURL];
+ [url appendFormat: @"/%@", [partPath componentsJoinedByString: @"/"]];
+ [url deleteCharactersInRange: NSMakeRange([url length] - 3, 2)];
+ parts = [[parent bodyInfo] objectForKey: @"parts"];
+ max = [parts count];
+ for (count = 0; count < max; count++)
+ [self _convertReferencesForPart: [parts objectAtIndex: count]
+ withCount: count + 1
+ andBaseURL: url
+ intoDictionary: attachmentIds];
+ [url release];
+ }
+
+ return attachmentIds;
+}
+
+- (NSString *) flatContentAsString
+{
+ id <NSObject, SaxXMLReader> parser;
+ _UIxHTMLMailContentHandler *handler;
+ NSString *preparsedContent, *content, *css;
+
+ preparsedContent = [super flatContentAsString];
+ parser = [[SaxXMLReaderFactory standardXMLReaderFactory]
+ createXMLReaderForMimeType: @"text/html"];
+
+ handler = [_UIxHTMLMailContentHandler new];
+ [handler setAttachmentIds: [self _attachmentIds]];
+ [parser setContentHandler: handler];
+ [parser setProperty: @"http://xml.org/sax/properties/lexical-handler"
+ to: handler];
+ [parser parseFromSource: preparsedContent];
+
+ css = [handler css];
+ if ([css length])
+ content
+ = [NSString stringWithFormat: @"<style type=\"text/css\">%@</style>%@",
+ css, [handler result]];
+ else
+ content = [handler result];
+ [handler release];
+
+ return content;
+}
+
+@end
projects / scalable-opengroupware.org / blobdiff