When possible, use MFMailComposeViewController for _openMailToURL:.

1 files changed, 108 insertions, 0 deletions

diff --git a/CyteKit/MFMailComposeViewController-MailToURL.mm b/CyteKit/MFMailComposeViewController-MailToURL.mm
new file mode 100644
index 0000000..ed6b9eb
--- /dev/null
+++ b/CyteKit/MFMailComposeViewController-MailToURL.mm
@@ -0,0 +1,108 @@
+/* Cydia - iPhone UIKit Front-End for Debian APT
+ * Copyright (C) 2008-2011  Jay Freeman (saurik)
+*/
+
+/* Modified BSD License {{{ */
+/*
+ *        Redistribution and use in source and binary
+ * forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the
+ *    above copyright notice, this list of conditions
+ *    and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the
+ *    above copyright notice, this list of conditions
+ *    and the following disclaimer in the documentation
+ *    and/or other materials provided with the
+ *    distribution.
+ * 3. The name of the author may not be used to endorse
+ *    or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/* }}} */
+
+#include "CyteKit/MFMailComposeViewController-MailToURL.h"
+
+#include <objc/runtime.h>
+#include <dlfcn.h>
+
+static void $MFMailComposeViewController$setMailToURL$(MFMailComposeViewController *self, SEL _cmd, NSURL *url) {
+    NSString *scheme([url scheme]);
+
+    if (scheme == nil || ![[scheme lowercaseString] isEqualToString:@"mailto"])
+        [NSException raise:NSInvalidArgumentException format:@"-[MFMailComposeViewController setMailToURL:] - non-mailto: URL"];
+
+    NSString *href([url absoluteString]);
+    NSRange question([href rangeOfString:@"?"]);
+
+    NSMutableArray *to([NSMutableArray arrayWithCapacity:1]);
+
+    NSString *target, *query;
+    if (question.location == NSNotFound) {
+        target = [href substringFromIndex:7];
+        query = nil;
+    } else {
+        target = [href substringWithRange:NSMakeRange(7, question.location - 7)];
+        query = [href substringFromIndex:(question.location + 1)];
+    }
+
+    if ([target length] != 0)
+        [to addObject:target];
+
+    if (query != nil && [query length] != 0) {
+        NSMutableArray *cc([NSMutableArray arrayWithCapacity:1]);
+        NSMutableArray *bcc([NSMutableArray arrayWithCapacity:1]);
+
+        for (NSString *assign in [query componentsSeparatedByString:@"&"]) {
+            NSRange equal([assign rangeOfString:@"="]);
+            if (equal.location == NSNotFound)
+                continue;
+
+            NSString *name([assign substringToIndex:equal.location]);
+            NSString *value([assign substringFromIndex:(equal.location + 1)]);
+            value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
+
+            if (false);
+            else if ([name isEqualToString:@"attachment"]) {
+                if (NSData *data = [NSData dataWithContentsOfFile:value])
+                    [self addAttachmentData:data mimeType:@"application/octet-stream" fileName:[value lastPathComponent]];
+            } else if ([name isEqualToString:@"bcc"])
+                [bcc addObject:value];
+            else if ([name isEqualToString:@"body"])
+                [self setMessageBody:value isHTML:NO];
+            else if ([name isEqualToString:@"cc"])
+                [cc addObject:value];
+            else if ([name isEqualToString:@"subject"])
+                [self setSubject:value];
+            else if ([name isEqualToString:@"to"])
+                [to addObject:value];
+        }
+
+        [self setCcRecipients:cc];
+        [self setBccRecipients:bcc];
+    }
+
+    [self setToRecipients:to];
+}
+
+__attribute__((__constructor__)) static void MFMailComposeViewController_CyteMailToURL() {
+    dlopen("/System/Library/Frameworks/MessageUI.framework/MessageUI", RTLD_GLOBAL | RTLD_LAZY);
+    if (Class MFMailComposeViewController = objc_getClass("MFMailComposeViewController"))
+        class_addMethod(MFMailComposeViewController, @selector(setMailToURL:), (IMP) $MFMailComposeViewController$setMailToURL$, "v12@0:4@8");
+}