CyteKit/WebView.mm

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2013  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/dispatchEvent.h"
  23 #include "CyteKit/WebView.h"
  24
  25 #include <CydiaSubstrate/CydiaSubstrate.h>
  26
  27 #include "iPhonePrivate.h"
  28
  29 // CYWebPolicyDecision* {{{
  30 @interface CYWebPolicyDecisionMediator : NSObject <
  31     WebPolicyDecisionListener
  32 > {
  33     id<WebPolicyDecisionListener> listener_;
  34     CYWebPolicyDecision decision_;
  35 }
  36
  37 - (id) initWithListener:(id<WebPolicyDecisionListener>)listener;
  38
  39 - (CYWebPolicyDecision) decision;
  40 - (bool) decided;
  41 - (bool) decide;
  42
  43 @end
  44
  45 @implementation CYWebPolicyDecisionMediator
  46
  47 - (id) initWithListener:(id<WebPolicyDecisionListener>)listener {
  48     if ((self = [super init]) != nil) {
  49         listener_ = listener;
  50     } return self;
  51 }
  52
  53 - (CYWebPolicyDecision) decision {
  54     return decision_;
  55 }
  56
  57 - (bool) decided {
  58     return decision_ != CYWebPolicyDecisionUnknown;
  59 }
  60
  61 - (bool) decide {
  62     switch (decision_) {
  63         case CYWebPolicyDecisionUnknown:
  64         default:
  65             NSLog(@"CYWebPolicyDecisionUnknown");
  66             return false;
  67
  68         case CYWebPolicyDecisionDownload: [listener_ download]; break;
  69         case CYWebPolicyDecisionIgnore: [listener_ ignore]; break;
  70         case CYWebPolicyDecisionUse: [listener_ use]; break;
  71     }
  72
  73     return true;
  74 }
  75
  76 - (void) download {
  77     decision_ = CYWebPolicyDecisionDownload;
  78 }
  79
  80 - (void) ignore {
  81     decision_ = CYWebPolicyDecisionIgnore;
  82 }
  83
  84 - (void) use {
  85     decision_ = CYWebPolicyDecisionUse;
  86 }
  87
  88 @end
  89 // }}}
  90
  91 @implementation CyteWebView : UIWebView
  92
  93 #if ShowInternals
  94 #include "CyteKit/UCInternal.h"
  95 #endif
  96
  97 - (id) initWithFrame:(CGRect)frame {
  98     if ((self = [super initWithFrame:frame]) != nil) {
  99     } return self;
 100 }
 101
 102 - (void) dealloc {
 103     if (kCFCoreFoundationVersionNumber < kCFCoreFoundationVersionNumber_iPhoneOS_3_0) {
 104         UIWebViewInternal *&_internal(MSHookIvar<UIWebViewInternal *>(self, "_internal"));
 105         if (&_internal != NULL) {
 106             UIWebViewWebViewDelegate *&webViewDelegate(MSHookIvar<UIWebViewWebViewDelegate *>(_internal, "webViewDelegate"));
 107             if (&webViewDelegate != NULL)
 108                 [webViewDelegate _clearUIWebView];
 109         }
 110     }
 111
 112     [super dealloc];
 113 }
 114
 115 - (NSString *) description {
 116     return [NSString stringWithFormat:@"<%s: %p, %@>", class_getName([self class]), self, [[[self request] URL] absoluteString]];
 117 }
 118
 119 - (id<CyteWebViewDelegate>) delegate {
 120     return (id<CyteWebViewDelegate>) [super delegate];
 121 }
 122
 123 - (void) setDelegate:(id<CyteWebViewDelegate>)delegate {
 124     [super setDelegate:delegate];
 125 }
 126
 127 /*- (WebView *) webView:(WebView *)view createWebViewWithRequest:(NSURLRequest *)request {
 128     id<CyteWebViewDelegate> delegate([self delegate]);
 129     WebView *created(nil);
 130     if (created == nil && [delegate respondsToSelector:@selector(webView:createWebViewWithRequest:)])
 131         created = [delegate webView:view createWebViewWithRequest:request];
 132     if (created == nil && [UIWebView instancesRespondToSelector:@selector(webView:createWebViewWithRequest:)])
 133         created = [super webView:view createWebViewWithRequest:request];
 134     return created;
 135 }*/
 136
 137 // webView:addMessageToConsole: (X.Xx) {{{
 138 static void $UIWebViewWebViewDelegate$webView$addMessageToConsole$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, NSDictionary *message) {
 139     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 140     if ([uiWebView respondsToSelector:@selector(webView:addMessageToConsole:)])
 141         [uiWebView webView:view addMessageToConsole:message];
 142 }
 143
 144 - (void) webView:(WebView *)view addMessageToConsole:(NSDictionary *)message {
 145     id<CyteWebViewDelegate> delegate([self delegate]);
 146     if ([delegate respondsToSelector:@selector(webView:addMessageToConsole:)])
 147         [delegate webView:view addMessageToConsole:message];
 148     if ([UIWebView instancesRespondToSelector:@selector(webView:addMessageToConsole:)])
 149         [super webView:view addMessageToConsole:message];
 150 }
 151 // }}}
 152 // webView:decidePolicyForNavigationAction:request:frame:decisionListener: (2.0+) {{{
 153 - (void) webView:(WebView *)view decidePolicyForNavigationAction:(NSDictionary *)action request:(NSURLRequest *)request frame:(WebFrame *)frame decisionListener:(id<WebPolicyDecisionListener>)listener {
 154     id<CyteWebViewDelegate> delegate([self delegate]);
 155     CYWebPolicyDecisionMediator *mediator([[[CYWebPolicyDecisionMediator alloc] initWithListener:listener] autorelease]);
 156     if (![mediator decided] && [delegate respondsToSelector:@selector(webView:decidePolicyForNavigationAction:request:frame:decisionListener:)])
 157         [delegate webView:view decidePolicyForNavigationAction:action request:request frame:frame decisionListener:mediator];
 158     if (![mediator decided] && [UIWebView instancesRespondToSelector:@selector(webView:decidePolicyForNavigationAction:request:frame:decisionListener:)])
 159         [super webView:view decidePolicyForNavigationAction:action request:request frame:frame decisionListener:mediator];
 160     if ([delegate respondsToSelector:@selector(webView:didDecidePolicy:forNavigationAction:request:frame:)])
 161         [delegate webView:view didDecidePolicy:[mediator decision] forNavigationAction:action request:request frame:frame];
 162     [mediator decide];
 163 }
 164 // }}}
 165 // webView:decidePolicyForNewWindowAction:request:newFrameName:decisionListener: (3.0+) {{{
 166 static void $UIWebViewWebViewDelegate$webView$decidePolicyForNewWindowAction$request$newFrameName$decisionListener$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, NSDictionary *action, NSURLRequest *request, NSString *frame, id<WebPolicyDecisionListener> listener) {
 167     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 168     if ([uiWebView respondsToSelector:@selector(webView:decidePolicyForNewWindowAction:request:newFrameName:decisionListener:)])
 169         [uiWebView webView:view decidePolicyForNewWindowAction:action request:request newFrameName:frame decisionListener:listener];
 170 }
 171
 172 - (void) webView:(WebView *)view decidePolicyForNewWindowAction:(NSDictionary *)action request:(NSURLRequest *)request newFrameName:(NSString *)frame decisionListener:(id<WebPolicyDecisionListener>)listener {
 173     id<CyteWebViewDelegate> delegate([self delegate]);
 174     CYWebPolicyDecisionMediator *mediator([[[CYWebPolicyDecisionMediator alloc] initWithListener:listener] autorelease]);
 175     if (![mediator decided] && [delegate respondsToSelector:@selector(webView:decidePolicyForNewWindowAction:request:newFrameName:decisionListener:)])
 176         [delegate webView:view decidePolicyForNewWindowAction:action request:request newFrameName:frame decisionListener:mediator];
 177     if (![mediator decided] && [UIWebView instancesRespondToSelector:@selector(webView:decidePolicyForNewWindowAction:request:newFrameName:decisionListener:)])
 178         [super webView:view decidePolicyForNewWindowAction:action request:request newFrameName:frame decisionListener:mediator];
 179     [mediator decide];
 180 }
 181 // }}}
 182 // webView:didClearWindowObject:forFrame: (3.2+) {{{
 183 static void $UIWebViewWebViewDelegate$webView$didClearWindowObject$forFrame$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, WebScriptObject *window, WebFrame *frame) {
 184     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 185     if ([uiWebView respondsToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 186         [uiWebView webView:view didClearWindowObject:window forFrame:frame];
 187 }
 188
 189 - (void) webView:(WebView *)view didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame {
 190     id<CyteWebViewDelegate> delegate([self delegate]);
 191     if ([delegate respondsToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 192         [delegate webView:view didClearWindowObject:window forFrame:frame];
 193     if ([UIWebView instancesRespondToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 194         [super webView:view didClearWindowObject:window forFrame:frame];
 195 }
 196 // }}}
 197 // webView:didCommitLoadForFrame: (3.0+) {{{
 198 static void $UIWebViewWebViewDelegate$webView$didCommitLoadForFrame$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, WebFrame *frame) {
 199     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 200     if ([uiWebView respondsToSelector:@selector(webView:didCommitLoadForFrame:)])
 201         [uiWebView webView:view didCommitLoadForFrame:frame];
 202 }
 203
 204 - (void) webView:(WebView *)view didCommitLoadForFrame:(WebFrame *)frame {
 205     id<CyteWebViewDelegate> delegate([self delegate]);
 206     if ([delegate respondsToSelector:@selector(webView:didCommitLoadForFrame:)])
 207         [delegate webView:view didCommitLoadForFrame:frame];
 208     if ([UIWebView instancesRespondToSelector:@selector(webView:didCommitLoadForFrame:)])
 209         [super webView:view didCommitLoadForFrame:frame];
 210 }
 211 // }}}
 212 // webView:didFailLoadWithError:forFrame: (2.0+) {{{
 213 - (void) webView:(WebView *)view didFailLoadWithError:(NSError *)error forFrame:(WebFrame *)frame {
 214     id<CyteWebViewDelegate> delegate([self delegate]);
 215     if ([delegate respondsToSelector:@selector(webView:didFailLoadWithError:forFrame:)])
 216         [delegate webView:view didFailLoadWithError:error forFrame:frame];
 217     if ([UIWebView instancesRespondToSelector:@selector(webView:didFailLoadWithError:forFrame:)])
 218         [super webView:view didFailLoadWithError:error forFrame:frame];
 219 }
 220 // }}}
 221 // webView:didFailProvisionalLoadWithError:forFrame: (2.0+) {{{
 222 - (void) webView:(WebView *)view didFailProvisionalLoadWithError:(NSError *)error forFrame:(WebFrame *)frame {
 223     id<CyteWebViewDelegate> delegate([self delegate]);
 224     if ([delegate respondsToSelector:@selector(webView:didFailProvisionalLoadWithError:forFrame:)])
 225         [delegate webView:view didFailProvisionalLoadWithError:error forFrame:frame];
 226     if ([UIWebView instancesRespondToSelector:@selector(webView:didFailProvisionalLoadWithError:forFrame:)])
 227         [super webView:view didFailProvisionalLoadWithError:error forFrame:frame];
 228 }
 229 // }}}
 230 // webView:didFinishLoadForFrame: (2.0+) {{{
 231 - (void) webView:(WebView *)view didFinishLoadForFrame:(WebFrame *)frame {
 232     id<CyteWebViewDelegate> delegate([self delegate]);
 233     if ([delegate respondsToSelector:@selector(webView:didFinishLoadForFrame:)])
 234         [delegate webView:view didFinishLoadForFrame:frame];
 235     if ([UIWebView instancesRespondToSelector:@selector(webView:didFinishLoadForFrame:)])
 236         [super webView:view didFinishLoadForFrame:frame];
 237 }
 238 // }}}
 239 // webView:didReceiveTitle:forFrame: (3.2+) {{{
 240 static void $UIWebViewWebViewDelegate$webView$didReceiveTitle$forFrame$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, NSString *title, WebFrame *frame) {
 241     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 242     if ([uiWebView respondsToSelector:@selector(webView:didReceiveTitle:forFrame:)])
 243         [uiWebView webView:view didReceiveTitle:title forFrame:frame];
 244 }
 245
 246 - (void) webView:(WebView *)view didReceiveTitle:(NSString *)title forFrame:(WebFrame *)frame {
 247     id<CyteWebViewDelegate> delegate([self delegate]);
 248     if ([delegate respondsToSelector:@selector(webView:didReceiveTitle:forFrame:)])
 249         [delegate webView:view didReceiveTitle:title forFrame:frame];
 250     if ([UIWebView instancesRespondToSelector:@selector(webView:didReceiveTitle:forFrame:)])
 251         [super webView:view didReceiveTitle:title forFrame:frame];
 252 }
 253 // }}}
 254 // webView:didStartProvisionalLoadForFrame: (2.0+) {{{
 255 - (void) webView:(WebView *)view didStartProvisionalLoadForFrame:(WebFrame *)frame {
 256     id<CyteWebViewDelegate> delegate([self delegate]);
 257     if ([delegate respondsToSelector:@selector(webView:didStartProvisionalLoadForFrame:)])
 258         [delegate webView:view didStartProvisionalLoadForFrame:frame];
 259     if ([UIWebView instancesRespondToSelector:@selector(webView:didStartProvisionalLoadForFrame:)])
 260         [super webView:view didStartProvisionalLoadForFrame:frame];
 261 }
 262 // }}}
 263 // webView:resource:willSendRequest:redirectResponse:fromDataSource: (3.2+) {{{
 264 static NSURLRequest *$UIWebViewWebViewDelegate$webView$resource$willSendRequest$redirectResponse$fromDataSource$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, id identifier, NSURLRequest *request, NSURLResponse *response, WebDataSource *source) {
 265     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 266     if ([uiWebView respondsToSelector:@selector(webView:resource:willSendRequest:redirectResponse:fromDataSource:)])
 267         request = [uiWebView webView:view resource:identifier willSendRequest:request redirectResponse:response fromDataSource:source];
 268     return request;
 269 }
 270
 271 - (NSURLRequest *) webView:(WebView *)view resource:(id)identifier willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)response fromDataSource:(WebDataSource *)source {
 272     id<CyteWebViewDelegate> delegate([self delegate]);
 273     if ([UIWebView instancesRespondToSelector:@selector(webView:resource:willSendRequest:redirectResponse:fromDataSource:)])
 274         request = [super webView:view resource:identifier willSendRequest:request redirectResponse:response fromDataSource:source];
 275     if ([delegate respondsToSelector:@selector(webView:resource:willSendRequest:redirectResponse:fromDataSource:)])
 276         request = [delegate webView:view resource:identifier willSendRequest:request redirectResponse:response fromDataSource:source];
 277     return request;
 278 }
 279 // }}}
 280 // webView:runJavaScriptAlertPanelWithMessage:initiatedByFrame: (2.1+) {{{
 281 - (void) webView:(WebView *)view runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {
 282     [[self retain] autorelease];
 283     id<CyteWebViewDelegate> delegate([self delegate]);
 284     if ([UIWebView instancesRespondToSelector:@selector(webView:runJavaScriptAlertPanelWithMessage:initiatedByFrame:)])
 285         if (
 286             ![delegate respondsToSelector:@selector(webView:shouldRunJavaScriptAlertPanelWithMessage:initiatedByFrame:)] ||
 287             [delegate webView:view shouldRunJavaScriptAlertPanelWithMessage:message initiatedByFrame:frame]
 288         )
 289             [super webView:view runJavaScriptAlertPanelWithMessage:message initiatedByFrame:frame];
 290 }
 291 // }}}
 292 // webView:runJavaScriptConfirmPanelWithMessage:initiatedByFrame: (2.1+) {{{
 293 - (BOOL) webView:(WebView *)view runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {
 294     [[self retain] autorelease];
 295     id<CyteWebViewDelegate> delegate([self delegate]);
 296     if ([UIWebView instancesRespondToSelector:@selector(webView:runJavaScriptConfirmPanelWithMessage:initiatedByFrame:)])
 297         if (
 298             ![delegate respondsToSelector:@selector(webView:shouldRunJavaScriptConfirmPanelWithMessage:initiatedByFrame:)] ||
 299             [delegate webView:view shouldRunJavaScriptConfirmPanelWithMessage:message initiatedByFrame:frame]
 300         )
 301             return [super webView:view runJavaScriptConfirmPanelWithMessage:message initiatedByFrame:frame];
 302     return NO;
 303 }
 304 // }}}
 305 // webView:runJavaScriptTextInputPanelWithPrompt:defaultText:initiatedByFrame: (2.1+) {{{
 306 - (NSString *) webView:(WebView *)view runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)text initiatedByFrame:(WebFrame *)frame {
 307     [[self retain] autorelease];
 308     id<CyteWebViewDelegate> delegate([self delegate]);
 309     if ([UIWebView instancesRespondToSelector:@selector(webView:runJavaScriptTextInputPanelWithPrompt:defaultText:initiatedByFrame:)])
 310         if (
 311             ![delegate respondsToSelector:@selector(webView:shouldRunJavaScriptTextInputPanelWithPrompt:defaultText:initiatedByFrame:)] ||
 312             [delegate webView:view shouldRunJavaScriptTextInputPanelWithPrompt:prompt defaultText:text initiatedByFrame:frame]
 313         )
 314             return [super webView:view runJavaScriptTextInputPanelWithPrompt:prompt defaultText:text initiatedByFrame:frame];
 315     return nil;
 316 }
 317 // }}}
 318 // webViewClose: (3.2+) {{{
 319 static void $UIWebViewWebViewDelegate$webViewClose$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view) {
 320     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 321     if ([uiWebView respondsToSelector:@selector(webViewClose:)])
 322         [uiWebView webViewClose:view];
 323 }
 324
 325 - (void) webViewClose:(WebView *)view {
 326     id<CyteWebViewDelegate> delegate([self delegate]);
 327     if ([delegate respondsToSelector:@selector(webViewClose:)])
 328         [delegate webViewClose:view];
 329     if ([UIWebView instancesRespondToSelector:@selector(webViewClose:)])
 330         [super webViewClose:view];
 331 }
 332 // }}}
 333
 334 - (void) _updateViewSettings {
 335     [super _updateViewSettings];
 336
 337     id<CyteWebViewDelegate> delegate([self delegate]);
 338     if ([delegate respondsToSelector:@selector(webViewUpdateViewSettings:)])
 339         [delegate webViewUpdateViewSettings:self];
 340 }
 341
 342 - (void) dispatchEvent:(NSString *)event {
 343     [[self _documentView] dispatchEvent:event];
 344 }
 345
 346 - (void) reloadFromOrigin {
 347     [[[self _documentView] webView] reloadFromOrigin:nil];
 348 }
 349
 350 - (UIScrollView *) scrollView {
 351     if ([self respondsToSelector:@selector(_scrollView)])
 352         return [self _scrollView];
 353     else if ([self respondsToSelector:@selector(_scroller)])
 354         return (UIScrollView *) [self _scroller];
 355     else return nil;
 356 }
 357
 358 - (void) setNeedsLayout {
 359     [super setNeedsLayout];
 360
 361     WebFrame *frame([[[self _documentView] webView] mainFrame]);
 362     if ([frame respondsToSelector:@selector(setNeedsLayout)])
 363         [frame setNeedsLayout];
 364 }
 365
 366 - (NSURLRequest *) request {
 367     WebFrame *frame([[[self _documentView] webView] mainFrame]);
 368     return [([frame provisionalDataSource] ?: [frame dataSource]) request];
 369 }
 370
 371 @end
 372
 373 static void $UIWebViewWebViewDelegate$_clearUIWebView(UIWebViewWebViewDelegate *self, SEL sel) {
 374     MSHookIvar<UIWebView *>(self, "uiWebView") = nil;
 375 }
 376
 377 __attribute__((__constructor__)) static void $() {
 378     if (Class $UIWebViewWebViewDelegate = objc_getClass("UIWebViewWebViewDelegate")) {
 379         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:addMessageToConsole:), (IMP) &$UIWebViewWebViewDelegate$webView$addMessageToConsole$, "v16@0:4@8@12");
 380         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:decidePolicyForNewWindowAction:request:newFrameName:decisionListener:), (IMP) &$UIWebViewWebViewDelegate$webView$decidePolicyForNewWindowAction$request$newFrameName$decisionListener$, "v28@0:4@8@12@16@20@24");
 381         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:didClearWindowObject:forFrame:), (IMP) &$UIWebViewWebViewDelegate$webView$didClearWindowObject$forFrame$, "v20@0:4@8@12@16");
 382         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:didCommitLoadForFrame:), (IMP) &$UIWebViewWebViewDelegate$webView$didCommitLoadForFrame$, "v16@0:4@8@12");
 383         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:didReceiveTitle:forFrame:), (IMP) &$UIWebViewWebViewDelegate$webView$didReceiveTitle$forFrame$, "v20@0:4@8@12@16");
 384         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:resource:willSendRequest:redirectResponse:fromDataSource:), (IMP) &$UIWebViewWebViewDelegate$webView$resource$willSendRequest$redirectResponse$fromDataSource$, "@28@0:4@8@12@16@20@24");
 385         class_addMethod($UIWebViewWebViewDelegate, @selector(webViewClose:), (IMP) &$UIWebViewWebViewDelegate$webViewClose$, "v12@0:4@8");
 386         class_addMethod($UIWebViewWebViewDelegate, @selector(_clearUIWebView), (IMP) &$UIWebViewWebViewDelegate$_clearUIWebView, "v8@0:4");
 387     }
 388 }