CyteKit/MFMailComposeViewController-MailToURL.mm

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cydia is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cydia is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cydia.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "CyteKit/MFMailComposeViewController-MailToURL.h"
  23
  24 #include <objc/runtime.h>
  25 #include <dlfcn.h>
  26
  27 static void $MFMailComposeViewController$setMailToURL$(MFMailComposeViewController *self, SEL _cmd, NSURL *url) {
  28     NSString *scheme([url scheme]);
  29
  30     if (scheme == nil || ![[scheme lowercaseString] isEqualToString:@"mailto"])
  31         [NSException raise:NSInvalidArgumentException format:@"-[MFMailComposeViewController setMailToURL:] - non-mailto: URL"];
  32
  33     NSString *href([url absoluteString]);
  34     NSRange question([href rangeOfString:@"?"]);
  35
  36     NSMutableArray *to([NSMutableArray arrayWithCapacity:1]);
  37
  38     NSString *target, *query;
  39     if (question.location == NSNotFound) {
  40         target = [href substringFromIndex:7];
  41         query = nil;
  42     } else {
  43         target = [href substringWithRange:NSMakeRange(7, question.location - 7)];
  44         query = [href substringFromIndex:(question.location + 1)];
  45     }
  46
  47     if ([target length] != 0)
  48         [to addObject:target];
  49
  50     if (query != nil && [query length] != 0) {
  51         NSMutableArray *cc([NSMutableArray arrayWithCapacity:1]);
  52         NSMutableArray *bcc([NSMutableArray arrayWithCapacity:1]);
  53
  54         for (NSString *assign in [query componentsSeparatedByString:@"&"]) {
  55             NSRange equal([assign rangeOfString:@"="]);
  56             if (equal.location == NSNotFound)
  57                 continue;
  58
  59             NSString *name([assign substringToIndex:equal.location]);
  60             NSString *value([assign substringFromIndex:(equal.location + 1)]);
  61             value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
  62
  63             if (false);
  64             else if ([name isEqualToString:@"attachment"]) {
  65                 if (NSData *data = [NSData dataWithContentsOfFile:value])
  66                     [self addAttachmentData:data mimeType:@"application/octet-stream" fileName:[value lastPathComponent]];
  67             } else if ([name isEqualToString:@"bcc"])
  68                 [bcc addObject:value];
  69             else if ([name isEqualToString:@"body"])
  70                 [self setMessageBody:value isHTML:NO];
  71             else if ([name isEqualToString:@"cc"])
  72                 [cc addObject:value];
  73             else if ([name isEqualToString:@"subject"])
  74                 [self setSubject:value];
  75             else if ([name isEqualToString:@"to"])
  76                 [to addObject:value];
  77         }
  78
  79         [self setCcRecipients:cc];
  80         [self setBccRecipients:bcc];
  81     }
  82
  83     [self setToRecipients:to];
  84 }
  85
  86 __attribute__((__constructor__)) static void MFMailComposeViewController_CyteMailToURL() {
  87     dlopen("/System/Library/Frameworks/MessageUI.framework/MessageUI", RTLD_GLOBAL | RTLD_LAZY);
  88     if (Class MFMailComposeViewController = objc_getClass("MFMailComposeViewController"))
  89         class_addMethod(MFMailComposeViewController, @selector(setMailToURL:), (IMP) $MFMailComposeViewController$setMailToURL$, "v12@0:4@8");
  90 }