From a02d4e989ec1ecf82da7044375b4010f1b572883 Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Sun, 5 Mar 2017 00:11:32 -0800
Subject: Try to abstract CydiaURLProtocol as CyteKit class.

---
 CyteKit/CyteKit.h      |  1 +
 CyteKit/URLProtocol.h  | 36 +++++++++++++++++++
 CyteKit/URLProtocol.mm | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 135 insertions(+)
 create mode 100644 CyteKit/URLProtocol.h
 create mode 100644 CyteKit/URLProtocol.mm

(limited to 'CyteKit')

diff --git a/CyteKit/CyteKit.h b/CyteKit/CyteKit.h
index 0bfba3c..7f1df37 100644
--- a/CyteKit/CyteKit.h
+++ b/CyteKit/CyteKit.h
@@ -28,6 +28,7 @@
 #include "CyteKit/TableViewCell.h"
 #include "CyteKit/TabBarController.h"
 #include "CyteKit/URLCache.h"
+#include "CyteKit/URLProtocol.h"
 #include "CyteKit/WebViewController.h"
 #include "CyteKit/WebViewTableViewCell.h"
 #include "CyteKit/Window.h"
diff --git a/CyteKit/URLProtocol.h b/CyteKit/URLProtocol.h
new file mode 100644
index 0000000..9b1796d
--- /dev/null
+++ b/CyteKit/URLProtocol.h
@@ -0,0 +1,36 @@
+/* Cydia - iPhone UIKit Front-End for Debian APT
+ * Copyright (C) 2008-2015  Jay Freeman (saurik)
+*/
+
+/* GNU General Public License, Version 3 {{{ */
+/*
+ * Cydia 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 3 of the License,
+ * or (at your option) any later version.
+ *
+ * Cydia 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 Cydia.  If not, see <http://www.gnu.org/licenses/>.
+**/
+/* }}} */
+
+#ifndef CyteKit_URLProtocol_H
+#define CyteKit_URLProtocol_H
+
+#include <UIKit/UIKit.h>
+
+@interface CyteURLProtocol : NSURLProtocol
+
++ (NSString *) scheme;
+
+- (void) _returnPNGWithImage:(UIImage *)icon forRequest:(NSURLRequest *)request;
+- (bool) loadForPath:(NSString *)path ofRequest:(NSURLRequest *)request;
+
+@end
+
+#endif//CyteKit_URLProtocol_H
diff --git a/CyteKit/URLProtocol.mm b/CyteKit/URLProtocol.mm
new file mode 100644
index 0000000..eccd2f7
--- /dev/null
+++ b/CyteKit/URLProtocol.mm
@@ -0,0 +1,98 @@
+/* Cydia - iPhone UIKit Front-End for Debian APT
+ * Copyright (C) 2008-2015  Jay Freeman (saurik)
+*/
+
+/* GNU General Public License, Version 3 {{{ */
+/*
+ * Cydia 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 3 of the License,
+ * or (at your option) any later version.
+ *
+ * Cydia 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 Cydia.  If not, see <http://www.gnu.org/licenses/>.
+**/
+/* }}} */
+
+#include "CyteKit/UCPlatform.h"
+
+#include "CyteKit/URLProtocol.h"
+
+#include "iPhonePrivate.h"
+#include <Menes/ObjectHandle.h>
+
+@implementation CyteURLProtocol {
+}
+
++ (NSString *) scheme {
+    return NULL;
+}
+
++ (BOOL) canInitWithRequest:(NSURLRequest *)request {
+    NSURL *url([request URL]);
+    if (url == nil)
+        return NO;
+
+    auto local([self scheme]);
+    _assert(local != NULL);
+
+    NSString *scheme([[url scheme] lowercaseString]);
+    if (scheme != nil && [scheme isEqualToString:local])
+        return YES;
+    if ([[url absoluteString] hasPrefix:[NSString stringWithFormat:@"about:%@-", local]])
+        return YES;
+
+    return NO;
+}
+
++ (NSURLRequest *) canonicalRequestForRequest:(NSURLRequest *)request {
+    return request;
+}
+
+- (void) _returnPNGWithImage:(UIImage *)icon forRequest:(NSURLRequest *)request {
+    id<NSURLProtocolClient> client([self client]);
+    if (icon == nil)
+        [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorFileDoesNotExist userInfo:nil]];
+    else {
+        NSData *data(UIImagePNGRepresentation(icon));
+
+        NSURLResponse *response([[[NSURLResponse alloc] initWithURL:[request URL] MIMEType:@"image/png" expectedContentLength:-1 textEncodingName:nil] autorelease]);
+        [client URLProtocol:self didReceiveResponse:response cacheStoragePolicy:NSURLCacheStorageNotAllowed];
+        [client URLProtocol:self didLoadData:data];
+        [client URLProtocolDidFinishLoading:self];
+    }
+}
+
+- (bool) loadForPath:(NSString *)path ofRequest:(NSURLRequest *)request {
+    return false;
+}
+
+- (void) startLoading {
+    id<NSURLProtocolClient> client([self client]);
+    NSURLRequest *request([self request]);
+
+    NSURL *url([request URL]);
+    NSString *href([url absoluteString]);
+    NSString *scheme([[url scheme] lowercaseString]);
+
+    NSString *path;
+
+    if ([scheme isEqualToString:@"cydia"])
+        path = [href substringFromIndex:8];
+    else if ([scheme isEqualToString:@"about"])
+        path = [href substringFromIndex:12];
+    else _assert(false);
+
+    if (![self loadForPath:path ofRequest:request])
+        [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorResourceUnavailable userInfo:nil]];
+}
+
+- (void) stopLoading {
+}
+
+@end
-- 
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