LockScreen.mm

   1 /* Cydget - open-source AwayView plugin multiplexer
   2  * Copyright (C) 2009-2011  Jay Freeman (saurik)
   3 */
   4
   5 /*
   6  *        Redistribution and use in source and binary
   7  * forms, with or without modification, are permitted
   8  * provided that the following conditions are met:
   9  *
  10  * 1. Redistributions of source code must retain the
  11  *    above copyright notice, this list of conditions
  12  *    and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the
  14  *    above copyright notice, this list of conditions
  15  *    and the following disclaimer in the documentation
  16  *    and/or other materials provided with the
  17  *    distribution.
  18  * 3. The name of the author may not be used to endorse
  19  *    or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
  23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
  24  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
  27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  28  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  32  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  33  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  34  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  35  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36 */
  37
  38 #include <substrate.h>
  39 #include <sys/sysctl.h>
  40
  41 #import <GraphicsServices/GraphicsServices.h>
  42 #import <UIKit/UIKit.h>
  43 #import <AddressBook/AddressBook.h>
  44
  45 #import <SpringBoard/SBStatusBarController.h>
  46 #import <SpringBoardUI/SBAwayViewPluginController.h>
  47 #import <TelephonyUI/TPBottomLockBar.h>
  48
  49 #import <QuartzCore/CALayer.h>
  50 // XXX: fix the minimum requirement
  51 extern NSString * const kCAFilterNearest;
  52
  53 #include <WebKit/DOMCSSPrimitiveValue.h>
  54 #include <WebKit/DOMCSSStyleDeclaration.h>
  55 #include <WebKit/DOMDocument.h>
  56 #include <WebKit/DOMHTMLBodyElement.h>
  57 #include <WebKit/DOMNodeList.h>
  58 #include <WebKit/DOMRGBColor.h>
  59
  60 #include <WebKit/WebFrame.h>
  61 #include <WebKit/WebPolicyDelegate.h>
  62 #include <WebKit/WebPreferences.h>
  63 #include <WebKit/WebScriptObject.h>
  64
  65 #import <WebKit/WebView.h>
  66 #import <WebKit/WebView-WebPrivate.h>
  67
  68 #include <WebCore/Page.h>
  69 #include <WebCore/Settings.h>
  70
  71 #include <WebCore/WebCoreThread.h>
  72 #include <WebKit/WebPreferences-WebPrivate.h>
  73
  74 #include "JSGlobalData.h"
  75
  76 #include "SourceCode.h"
  77
  78 #include "yieldToSelector.h"
  79
  80 #include <apr-1/apr_pools.h>
  81 #include <pcre.h>
  82
  83 #define _transient
  84 #define _forever for (;;)
  85
  86 _disused static unsigned trace_;
  87
  88 #define _trace() do { \
  89     NSLog(@"_trace(%u)@%s:%u[%s](%p)\n", \
  90         trace_++, __FILE__, __LINE__, __FUNCTION__, pthread_self() \
  91     ); \
  92 } while (false)
  93
  94 #define _assert(test) do \
  95     if (!(test)) { \
  96         fprintf(stderr, "_assert(%d:%s)@%s:%u[%s]\n", errno, #test, __FILE__, __LINE__, __FUNCTION__); \
  97         exit(-1); \
  98     } \
  99 while (false)
 100
 101 #define _syscall(expr) \
 102     do if ((long) (expr) != -1) \
 103         break; \
 104     else switch (errno) { \
 105         case EINTR: \
 106             continue; \
 107         default: \
 108             _assert(false); \
 109     } while (true)
 110
 111 @protocol CydgetController
 112 - (NSDictionary *) currentConfiguration;
 113 @end
 114
 115 static Class $CydgetController(objc_getClass("CydgetController"));
 116
 117 static bool iOS32, iOS4;
 118
 119 @interface NSString (UIKit)
 120 - (NSString *) stringByAddingPercentEscapes;
 121 @end
 122
 123 @implementation UIWebDocumentView (WebCycript)
 124
 125 - (void) _setScrollerOffset:(CGPoint)offset {
 126     UIScroller *scroller([self _scroller]);
 127
 128     CGSize size([scroller contentSize]);
 129     CGSize bounds([scroller bounds].size);
 130
 131     CGPoint max;
 132     max.x = size.width - bounds.width;
 133     max.y = size.height - bounds.height;
 134
 135     // wtf Apple?!
 136     if (max.x < 0)
 137         max.x = 0;
 138     if (max.y < 0)
 139         max.y = 0;
 140
 141     offset.x = offset.x < 0 ? 0 : offset.x > max.x ? max.x : offset.x;
 142     offset.y = offset.y < 0 ? 0 : offset.y > max.y ? max.y : offset.y;
 143
 144     [scroller setOffset:offset];
 145 }
 146
 147 @end
 148
 149 /* Perl-Compatible RegEx {{{ */
 150 class Pcre {
 151   private:
 152     pcre *code_;
 153     pcre_extra *study_;
 154     int capture_;
 155     int *matches_;
 156     const char *data_;
 157
 158   public:
 159     Pcre(const char *regex, int options = 0) :
 160         study_(NULL)
 161     {
 162         const char *error;
 163         int offset;
 164         code_ = pcre_compile(regex, options, &error, &offset, NULL);
 165
 166         if (code_ == NULL)
 167             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:[NSString stringWithFormat:@"*** Pcre(,): [%u] %s", offset, error] userInfo:nil];
 168
 169         pcre_fullinfo(code_, study_, PCRE_INFO_CAPTURECOUNT, &capture_);
 170         matches_ = new int[(capture_ + 1) * 3];
 171     }
 172
 173     ~Pcre() {
 174         pcre_free(code_);
 175         delete matches_;
 176     }
 177
 178     NSString *operator [](size_t match) {
 179         return [[[NSString alloc] initWithBytes:(data_ + matches_[match * 2]) length:(matches_[match * 2 + 1] - matches_[match * 2]) encoding:NSUTF8StringEncoding] autorelease];
 180     }
 181
 182     bool operator ()(NSString *data) {
 183         // XXX: length is for characters, not for bytes
 184         return operator ()([data UTF8String], [data length]);
 185     }
 186
 187     bool operator ()(const char *data, size_t size) {
 188         data_ = data;
 189         return pcre_exec(code_, study_, data, size, 0, 0, matches_, (capture_ + 1) * 3) >= 0;
 190     }
 191 };
 192 /* }}} */
 193
 194 static float CYScrollViewDecelerationRateNormal;
 195
 196 @interface NSURL (Apple)
 197 - (BOOL) isSpringboardHandledURL;
 198 @end
 199
 200 @interface UIScrollView (Apple)
 201 - (void) setDecelerationRate:(float)value;
 202 - (void) setScrollingEnabled:(BOOL)enabled;
 203 @end
 204
 205 @interface UIWebView (Apple)
 206 - (void) setDataDetectorTypes:(int)types;
 207 - (UIScrollView *) _scrollView;
 208 - (UIScroller *) _scroller;
 209 - (void) webView:(WebView *)view addMessageToConsole:(NSDictionary *)message;
 210 - (void) webView:(WebView *)view didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame;
 211 @end
 212
 213 @interface WebView (Apple)
 214 - (void) _setLayoutInterval:(float)interval;
 215 - (void) _setAllowsMessaging:(BOOL)allows;
 216 - (void) setShouldUpdateWhileOffscreen:(BOOL)update;
 217 @end
 218
 219 @protocol CydgetWebViewDelegate //<UIWebViewDelegate>
 220 - (void) webView:(WebView *)view didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame;
 221 @end
 222
 223 @class UIWebViewWebViewDelegate;
 224
 225 @interface CydgetWebView : UIWebView {
 226 }
 227
 228 @end
 229
 230 MSClassHook(UIApplication)
 231
 232 MSInstanceMessageHook1(void, UIApplication, openURL, NSURL *, url) {
 233     [self applicationOpenURL:url];
 234 }
 235
 236 @implementation NSURL (Cydget)
 237
 238 - (NSNumber *) cydget$isSpringboardHandledURL {
 239     return [NSNumber numberWithBool:[self isSpringboardHandledURL]];
 240 }
 241
 242 @end
 243
 244 MSClassHook(NSURL)
 245
 246 MSInstanceMessageHook0(BOOL, NSURL, isSpringboardHandledURL) {
 247     if (![NSThread isMainThread])
 248         return MSOldCall();
 249
 250     return [[self cydget$yieldToSelector:@selector(cydget$isSpringboardHandledURL)] boolValue];
 251 }
 252
 253 @implementation CydgetWebView
 254
 255 - (void) webView:(WebView *)view didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame {
 256     NSObject<CydgetWebViewDelegate> *delegate([self delegate]);
 257     if ([delegate respondsToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 258         [delegate webView:view didClearWindowObject:window forFrame:frame];
 259     if ([UIWebView instancesRespondToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 260         [super webView:view didClearWindowObject:window forFrame:frame];
 261 }
 262
 263 - (void) webView:(WebView *)view addMessageToConsole:(NSDictionary *)message {
 264     NSLog(@"addMessageToConsole:%@", message);
 265
 266     if ([UIWebView instancesRespondToSelector:@selector(webView:addMessageToConsole:)])
 267         [super webView:view addMessageToConsole:message];
 268 }
 269
 270 @end
 271
 272 @interface WebCydgetLockScreenView : UIView {
 273     CydgetWebView *webview_;
 274     UIScrollView *scroller_;
 275     NSString *cycript_;
 276 }
 277
 278 @end
 279
 280 @implementation WebCydgetLockScreenView
 281
 282 //#include "UICaboodle/UCInternal.h"
 283
 284 - (void) dealloc {
 285     [webview_ setDelegate:nil];
 286     [webview_ release];
 287     [super dealloc];
 288 }
 289
 290 - (void) loadRequest:(NSURLRequest *)request {
 291     [webview_ loadRequest:request];
 292 }
 293
 294 - (void) loadURL:(NSURL *)url cachePolicy:(NSURLRequestCachePolicy)policy {
 295     [self loadRequest:[NSURLRequest
 296         requestWithURL:url
 297         cachePolicy:policy
 298         timeoutInterval:30.0
 299     ]];
 300 }
 301
 302 - (void) loadURL:(NSURL *)url {
 303     [self loadURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy];
 304 }
 305
 306 - (id) init {
 307     CGRect frame = {{0, 0}, {320, 480}};
 308     frame.size.height -= 20; //[[[$SBStatusBarController sharedStatusBarController] statusBarView] frame].size.height;
 309
 310     if ((self = [super initWithFrame:frame]) != nil) {
 311         CGRect bounds([self bounds]);
 312         bounds.size.height -= [TPBottomLockBar defaultHeight];
 313
 314         webview_ = [[CydgetWebView alloc] initWithFrame:bounds];
 315         [webview_ setDelegate:self];
 316         [self addSubview:webview_];
 317
 318         if ([webview_ respondsToSelector:@selector(setDataDetectorTypes:)])
 319             [webview_ setDataDetectorTypes:0x80000000];
 320         else
 321             [webview_ setDetectsPhoneNumbers:NO];
 322
 323         [webview_ setScalesPageToFit:YES];
 324
 325         UIWebDocumentView *document([webview_ _documentView]);
 326         WebView *webview([document webView]);
 327         WebPreferences *preferences([webview preferences]);
 328
 329         [document setTileSize:CGSizeMake(bounds.size.width, 500)];
 330
 331         [document setBackgroundColor:[UIColor blackColor]];
 332         [document setDrawsBackground:NO];
 333
 334         [webview setPreferencesIdentifier:@"WebCycript"];
 335
 336         if ([webview respondsToSelector:@selector(_setLayoutInterval:)])
 337             [webview _setLayoutInterval:0];
 338         else
 339             [preferences _setLayoutInterval:0];
 340
 341         [preferences setCacheModel:WebCacheModelDocumentViewer];
 342         [preferences setJavaScriptCanOpenWindowsAutomatically:YES];
 343         [preferences setOfflineWebApplicationCacheEnabled:YES];
 344
 345         if ([webview respondsToSelector:@selector(setShouldUpdateWhileOffscreen:)])
 346             [webview setShouldUpdateWhileOffscreen:NO];
 347
 348         if ([document respondsToSelector:@selector(setAllowsMessaging:)])
 349             [document setAllowsMessaging:YES];
 350         if ([webview respondsToSelector:@selector(_setAllowsMessaging:)])
 351             [webview _setAllowsMessaging:YES];
 352
 353         if ([webview_ respondsToSelector:@selector(_scrollView)]) {
 354             scroller_ = [webview_ _scrollView];
 355
 356             [scroller_ setDirectionalLockEnabled:YES];
 357             [scroller_ setDecelerationRate:CYScrollViewDecelerationRateNormal];
 358             [scroller_ setDelaysContentTouches:NO];
 359
 360             [scroller_ setCanCancelContentTouches:YES];
 361
 362             [scroller_ setAlwaysBounceVertical:NO];
 363         } else if ([webview_ respondsToSelector:@selector(_scroller)]) {
 364             UIScroller *scroller([webview_ _scroller]);
 365             scroller_ = (UIScrollView *) scroller;
 366
 367             [scroller setDirectionalScrolling:YES];
 368             [scroller setScrollDecelerationFactor:CYScrollViewDecelerationRateNormal]; /* 0.989324 */
 369             [scroller setScrollHysteresis:0]; /* 8 */
 370
 371             [scroller setThumbDetectionEnabled:NO];
 372         }
 373
 374         [scroller_ setFixedBackgroundPattern:YES];
 375         [scroller_ setBackgroundColor:[UIColor blackColor]];
 376         [scroller_ setClipsSubviews:NO];
 377
 378         [scroller_ setBounces:YES];
 379         [scroller_ setShowBackgroundShadow:NO]; /* YES */
 380
 381         [self setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
 382         [webview_ setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
 383
 384         NSDictionary *configuration([$CydgetController currentConfiguration]);
 385
 386         cycript_ = [configuration objectForKey:@"CycriptURLs"];
 387
 388         [scroller_ setScrollingEnabled:[[configuration objectForKey:@"Scrollable"] boolValue]];
 389
 390         NSString *homepage([configuration objectForKey:@"Homepage"]);
 391         [self loadURL:[NSURL URLWithString:homepage]];
 392     } return self;
 393 }
 394
 395 - (void) webView:(WebView *)webview didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame {
 396     if (cycript_ != nil)
 397         if (NSString *href = [[[[frame dataSource] request] URL] absoluteString])
 398             if (Pcre([cycript_ UTF8String], 0 /*XXX:PCRE_UTF8*/)(href))
 399                 if (void *handle = dlopen("/usr/lib/libcycript.dylib", RTLD_LAZY | RTLD_GLOBAL))
 400                     if (void (*CYSetupContext)(JSGlobalContextRef) = reinterpret_cast<void (*)(JSGlobalContextRef)>(dlsym(handle, "CydgetSetupContext"))) {
 401                         WebFrame *frame([webview mainFrame]);
 402                         JSGlobalContextRef context([frame globalContext]);
 403                         CYSetupContext(context);
 404                     }
 405 }
 406
 407 @end
 408
 409 @interface WebCycriptLockScreenController : SBAwayViewPluginController {
 410 }
 411
 412 @end
 413
 414 #include <string>
 415
 416 struct State {
 417     unsigned state;
 418 };
 419
 420 // String Helpers {{{
 421 static const UChar *(*_ZNK7WebCore6String10charactersEv)(const WebCore::String *);
 422 static const UChar *(*_ZN7WebCore6String29charactersWithNullTerminationEv)(const WebCore::String *);
 423 static unsigned (*_ZNK7WebCore6String6lengthEv)(const WebCore::String *);
 424
 425 static bool StringGet(const WebCore::String &string, const UChar *&data, size_t &length) {
 426     bool terminated;
 427
 428     if (_ZNK7WebCore6String10charactersEv != NULL) {
 429         data = (*_ZNK7WebCore6String10charactersEv)(&string);
 430         terminated = false;
 431     } else if (_ZN7WebCore6String29charactersWithNullTerminationEv != NULL) {
 432         data = (*_ZN7WebCore6String29charactersWithNullTerminationEv)(&string);
 433         terminated = true;
 434     } else return false;
 435
 436     if (_ZNK7WebCore6String6lengthEv != NULL)
 437         length = (*_ZNK7WebCore6String6lengthEv)(&string);
 438     else if (terminated)
 439         for (length = 0; data[length] != 0; ++length);
 440     else return false;
 441
 442     return true;
 443 }
 444
 445 static bool StringEquals(const WebCore::String &string, const char *value) {
 446     const UChar *data;
 447     size_t size;
 448     if (!StringGet(string, data, size))
 449         return false;
 450
 451     size_t length(strlen(value));
 452     if (size != length)
 453         return false;
 454
 455     for (size_t index(0); index != length; ++index)
 456         if (data[index] != value[index])
 457             return false;
 458
 459     return true;
 460 }
 461 // }}}
 462 // State Machine {{{
 463 static bool cycript_;
 464
 465 MSHook(bool, _ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE, const WebCore::String &mime) {
 466     if (!StringEquals(mime, "text/cycript")) {
 467         cycript_ = false;
 468         return __ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE(mime);
 469     }
 470
 471     static void *handle(dlopen("/usr/lib/libcycript.dylib", RTLD_LAZY | RTLD_GLOBAL));
 472     if (handle == NULL)
 473         return false;
 474
 475     cycript_ = true;
 476     return true;
 477 }
 478 // }}}
 479 // Script Compiler {{{
 480 static void Log(const WebCore::String &string) {
 481 #if 0
 482     const UChar *data;
 483     size_t length;
 484     if (!StringGet(string, data, length))
 485         return;
 486
 487     UChar terminated[length + 1];
 488     terminated[length] = 0;
 489     memcpy(terminated, data, length * 2);
 490     NSLog(@"wtf %p:%zu:%S:", &string, length, terminated);
 491 #endif
 492 }
 493
 494 static void Cycriptify(apr_pool_t *pool, const uint16_t *&data, size_t &size) {
 495     cycript_ = false;
 496
 497     if (void *handle = dlopen("/usr/lib/libcycript.dylib", RTLD_LAZY | RTLD_GLOBAL))
 498         if (void (*CydgetPoolParse)(apr_pool_t *, const uint16_t **, size_t *) = reinterpret_cast<void (*)(apr_pool_t *, const uint16_t **, size_t *)>(dlsym(handle, "CydgetPoolParse")))
 499             CydgetPoolParse(pool, &data, &size);
 500 }
 501
 502 static void (*_ZN7WebCore6String6appendEPKtj)(WebCore::String *, const UChar *, unsigned);
 503 static void (*_ZN7WebCore6String8truncateEj)(WebCore::String *, unsigned);
 504
 505 static void Cycriptify(const WebCore::String &source, int *psize = NULL) {
 506     if (!cycript_)
 507         return;
 508
 509     const UChar *data;
 510     size_t length;
 511
 512     if (!StringGet(source, data, length)) {
 513         return;
 514     }
 515
 516     size_t size(length);
 517
 518     apr_pool_t *pool;
 519     apr_pool_create(&pool, NULL);
 520
 521     Cycriptify(pool, data, size);
 522
 523     WebCore::String &script(const_cast<WebCore::String &>(source));
 524
 525     _ZN7WebCore6String8truncateEj(&script, 0);
 526     _ZN7WebCore6String6appendEPKtj(&script, data, size);
 527
 528     if (psize != NULL)
 529         *psize = size;
 530
 531     apr_pool_destroy(pool);
 532
 533     Log(source);
 534 }
 535 // }}}
 536
 537 extern "C" void *_ZN3JSC7UString3Rep14nullBaseStringE __attribute__((__weak_import__));
 538 extern "C" void *_ZN3JSC7UString3Rep7destroyEv __attribute__((__weak_import__));
 539 extern "C" void *_ZN3JSC7UStringC1EPKti __attribute__((__weak_import__));
 540 extern "C" void *_ZN3JSC7UStringC1EPKc __attribute__((__weak_import__));
 541 extern "C" void *_ZNK3JSC7UString6substrEii __attribute__((__weak_import__));
 542 extern "C" void *_ZN3WTF10fastMallocEm __attribute__((__weak_import__));
 543 extern "C" void WTFReportAssertionFailure(const char *, int, const char *, const char *) __attribute__((__weak_import__));
 544 extern "C" void *_ZN3WTF8fastFreeEPv __attribute__((__weak_import__));
 545
 546 bool CYWeakHell() {
 547     return
 548         &_ZN3JSC7UString3Rep14nullBaseStringE == NULL ||
 549         &_ZN3JSC7UString3Rep7destroyEv == NULL ||
 550         &_ZN3JSC7UStringC1EPKti == NULL ||
 551         &_ZN3JSC7UStringC1EPKc == NULL ||
 552         &_ZNK3JSC7UString6substrEii == NULL ||
 553         &_ZN3WTF10fastMallocEm == NULL ||
 554         &WTFReportAssertionFailure == NULL ||
 555         &_ZN3WTF8fastFreeEPv == NULL ||
 556     false;
 557 }
 558
 559 static WebCore::String *string;
 560
 561 // iOS 2.x
 562 MSHook(State, _ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i, void *_this, const WebCore::String &string, State state, const WebCore::String &url, int line) {
 563     Cycriptify(string);
 564     return __ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i(_this, string, state, url, line);
 565 }
 566
 567 // iOS 3.x
 568 MSHook(void, _ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE, JSC::SourceCode **_this, JSC::JSGlobalData *global, int *line, JSC::UString *message) {
 569     if (cycript_) {
 570         JSC::SourceCode *source(_this[iOS32 ? 6 : 0]);
 571         const uint16_t *data(source->data());
 572         size_t size(source->length());
 573
 574         apr_pool_t *pool;
 575         apr_pool_create(&pool, NULL);
 576
 577         Cycriptify(pool, data, size);
 578         source->~SourceCode();
 579         // XXX: I actually don't have the original URL here: pants
 580         new (source) JSC::SourceCode(JSC::UStringSourceProvider::create(JSC::UString(data, size), "cycript://"), 1);
 581
 582         apr_pool_destroy(pool);
 583
 584     }
 585
 586     return __ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE(_this, global, line, message);
 587 }
 588
 589 // iOS 4.x cdata
 590 MSHook(void, _ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi, void *_this, const WebCore::String &source, const WebCore::KURL &url, int line) {
 591     Cycriptify(source);
 592     return __ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi(_this, source, url, line);
 593 }
 594
 595 // iOS 4.x @src=
 596 MSHook(const WebCore::String &, _ZN7WebCore12CachedScript6scriptEv, void *_this) {
 597     const WebCore::String &script(__ZN7WebCore12CachedScript6scriptEv(_this));
 598     string = const_cast<WebCore::String *>(&script);
 599     Log(script);
 600     return script;
 601 }
 602
 603 // iOS 4.x @src=
 604 MSHook(State, _ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE, void *_this, void *source, State state) {
 605     if (string != NULL) {
 606         if (iOS4)
 607             Cycriptify(*string, reinterpret_cast<int *>(source) + 3);
 608         else
 609             Cycriptify(*string);
 610     }
 611     string = NULL;
 612     return __ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE(_this, source, state);
 613 }
 614
 615 /* Cydget:// Protocol {{{ */
 616 @interface CydgetURLProtocol : NSURLProtocol {
 617 }
 618
 619 @end
 620
 621 @implementation CydgetURLProtocol
 622
 623 + (BOOL) canInitWithRequest:(NSURLRequest *)request {
 624     NSURL *url([request URL]);
 625     if (url == nil)
 626         return NO;
 627     NSString *scheme([[url scheme] lowercaseString]);
 628     if (scheme == nil || ![scheme isEqualToString:@"cydget"])
 629         return NO;
 630     return YES;
 631 }
 632
 633 + (NSURLRequest *) canonicalRequestForRequest:(NSURLRequest *)request {
 634     return request;
 635 }
 636
 637 - (void) _returnPNGWithImage:(UIImage *)icon forRequest:(NSURLRequest *)request {
 638     id<NSURLProtocolClient> client([self client]);
 639     if (icon == nil)
 640         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorFileDoesNotExist userInfo:nil]];
 641     else {
 642         NSData *data(UIImagePNGRepresentation(icon));
 643
 644         NSURLResponse *response([[[NSURLResponse alloc] initWithURL:[request URL] MIMEType:@"image/png" expectedContentLength:-1 textEncodingName:nil] autorelease]);
 645         [client URLProtocol:self didReceiveResponse:response cacheStoragePolicy:NSURLCacheStorageNotAllowed];
 646         [client URLProtocol:self didLoadData:data];
 647         [client URLProtocolDidFinishLoading:self];
 648     }
 649 }
 650
 651 - (void) startLoading {
 652     id<NSURLProtocolClient> client([self client]);
 653     NSURLRequest *request([self request]);
 654
 655     NSURL *url([request URL]);
 656     NSString *href([url absoluteString]);
 657
 658     NSString *path([href substringFromIndex:9]);
 659     NSRange slash([path rangeOfString:@"/"]);
 660
 661     NSString *command;
 662     if (slash.location == NSNotFound) {
 663         command = path;
 664         path = nil;
 665     } else {
 666         command = [path substringToIndex:slash.location];
 667         path = [path substringFromIndex:(slash.location + 1)];
 668     }
 669
 670     if ([command isEqualToString:@"_UIImageWithName"]) {
 671         if (path == nil)
 672             goto fail;
 673         path = [path stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
 674         UIImage *icon(_UIImageWithName(path));
 675         [self _returnPNGWithImage:icon forRequest:request];
 676     } else fail: {
 677         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorResourceUnavailable userInfo:nil]];
 678     }
 679 }
 680
 681 - (void) stopLoading {
 682 }
 683
 684 @end
 685 /* }}} */
 686 /* Cydget-CGI:// Protocol {{{ */
 687 @interface CydgetCGIURLProtocol : NSURLProtocol {
 688     pid_t pid_;
 689     CFHTTPMessageRef http_;
 690     NSFileHandle *handle_;
 691 }
 692
 693 @end
 694
 695 @implementation CydgetCGIURLProtocol
 696
 697 + (BOOL) canInitWithRequest:(NSURLRequest *)request {
 698     NSURL *url([request URL]);
 699     if (url == nil)
 700         return NO;
 701     NSString *scheme([[url scheme] lowercaseString]);
 702     if (scheme == nil || ![scheme isEqualToString:@"cydget-cgi"])
 703         return NO;
 704     return YES;
 705 }
 706
 707 + (NSURLRequest *) canonicalRequestForRequest:(NSURLRequest *)request {
 708     return request;
 709 }
 710
 711 - (id) initWithRequest:(NSURLRequest *)request cachedResponse:(NSCachedURLResponse *)response client:(id<NSURLProtocolClient>)client {
 712     if ((self = [super initWithRequest:request cachedResponse:response client:client]) != nil) {
 713         pid_ = -1;
 714     } return self;
 715 }
 716
 717 - (void) startLoading {
 718     id<NSURLProtocolClient> client([self client]);
 719     NSURLRequest *request([self request]);
 720     NSURL *url([request URL]);
 721
 722     NSString *path([url path]);
 723     if (path == nil) {
 724         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorResourceUnavailable userInfo:nil]];
 725         return;
 726     }
 727
 728     NSFileManager *manager([NSFileManager defaultManager]);
 729     if (![manager fileExistsAtPath:path]) {
 730         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorFileDoesNotExist userInfo:nil]];
 731         return;
 732     }
 733
 734     int fds[2];
 735     _assert(pipe(fds) != -1);
 736
 737     _assert(pid_ == -1);
 738     pid_ = fork();
 739     if (pid_ == -1) {
 740         _assert(close(fds[0]) != -1);
 741         _assert(close(fds[1]) != -1);
 742         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorResourceUnavailable userInfo:nil]];
 743         return;
 744     }
 745
 746     if (pid_ == 0) {
 747         const char *script([path UTF8String]);
 748
 749         setenv("GATEWAY_INTERFACE", "CGI/1.1", true);
 750         setenv("SCRIPT_FILENAME", script, true);
 751         NSString *query([url query]);
 752         if (query != nil)
 753             setenv("QUERY_STRING", [query UTF8String], true);
 754
 755         _assert(dup2(fds[1], 1) != -1);
 756         _assert(close(fds[0]) != -1);
 757         _assert(close(fds[1]) != -1);
 758
 759         execl(script, script, NULL);
 760         exit(1);
 761         _assert(false);
 762     }
 763
 764     _assert(close(fds[1]) != -1);
 765
 766     _assert(http_ == NULL);
 767     http_ = CFHTTPMessageCreateEmpty(kCFAllocatorDefault, FALSE);
 768     CFHTTPMessageAppendBytes(http_, (const uint8_t *) "HTTP/1.1 200 OK\r\n", 17);
 769
 770     _assert(handle_ == nil);
 771     handle_ = [[NSFileHandle alloc] initWithFileDescriptor:fds[0] closeOnDealloc:YES];
 772
 773     [[NSNotificationCenter defaultCenter]
 774         addObserver:self
 775         selector:@selector(onRead:)
 776         name:@"NSFileHandleReadCompletionNotification"
 777         object:handle_
 778     ];
 779
 780     [handle_ readInBackgroundAndNotify];
 781 }
 782
 783 - (void) onRead:(NSNotification *)notification {
 784     NSFileHandle *handle([notification object]);
 785
 786     NSData *data([[notification userInfo] objectForKey:NSFileHandleNotificationDataItem]);
 787
 788     if (size_t length = [data length]) {
 789         CFHTTPMessageAppendBytes(http_, reinterpret_cast<const UInt8 *>([data bytes]), length);
 790         [handle readInBackgroundAndNotify];
 791     } else {
 792         id<NSURLProtocolClient> client([self client]);
 793
 794         CFStringRef mime(CFHTTPMessageCopyHeaderFieldValue(http_, CFSTR("Content-type")));
 795         if (mime == NULL)
 796             [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorBadServerResponse userInfo:nil]];
 797         else {
 798             NSURLRequest *request([self request]);
 799
 800             NSURLResponse *response([[[NSURLResponse alloc] initWithURL:[request URL] MIMEType:(NSString *)mime expectedContentLength:-1 textEncodingName:nil] autorelease]);
 801             CFRelease(mime);
 802
 803             [client URLProtocol:self didReceiveResponse:response cacheStoragePolicy:NSURLCacheStorageNotAllowed];
 804
 805             CFDataRef body(CFHTTPMessageCopyBody(http_));
 806             [client URLProtocol:self didLoadData:(NSData *)body];
 807             CFRelease(body);
 808
 809             [client URLProtocolDidFinishLoading:self];
 810         }
 811
 812         CFRelease(http_);
 813         http_ = NULL;
 814     }
 815 }
 816
 817     //[client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorNetworkConnectionLost userInfo:nil]];
 818
 819 - (void) stopLoading_ {
 820     [[NSNotificationCenter defaultCenter] removeObserver:self];
 821
 822     if (handle_ != nil) {
 823         [handle_ release];
 824         handle_ = nil;
 825     }
 826
 827     if (pid_ != -1) {
 828         kill(pid_, SIGTERM);
 829         int status;
 830         _syscall(waitpid(pid_, &status, 0));
 831         pid_ = -1;
 832     }
 833 }
 834
 835 - (void) stopLoading {
 836     [self
 837         performSelectorOnMainThread:@selector(stopLoading_)
 838         withObject:nil
 839         waitUntilDone:NO
 840     ];
 841 }
 842
 843 @end
 844 /* }}} */
 845
 846 template <typename Type_>
 847 static void nlset(Type_ &function, struct nlist *nl, size_t index) {
 848     struct nlist &name(nl[index]);
 849     uintptr_t value(name.n_value);
 850     if ((name.n_desc & N_ARM_THUMB_DEF) != 0)
 851         value |= 0x00000001;
 852     function = reinterpret_cast<Type_>(value);
 853 }
 854
 855 template <typename Type_>
 856 static void dlset(Type_ &function, const char *name) {
 857     function = reinterpret_cast<Type_>(dlsym(RTLD_DEFAULT, name));
 858 }
 859
 860 template <typename Type_>
 861 static void msset_(Type_ &function, const char *name, MSImageRef handle) {
 862     function = reinterpret_cast<Type_>(MSFindSymbol(handle, name));
 863 }
 864
 865 #define msset(function, handle) \
 866     msset_(function, "_" #function, handle)
 867
 868 @implementation WebCycriptLockScreenController
 869
 870 static void $UIWebViewWebViewDelegate$webView$addMessageToConsole$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, NSDictionary *message) {
 871     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 872     if ([uiWebView respondsToSelector:@selector(webView:addMessageToConsole:)])
 873         [uiWebView webView:view addMessageToConsole:message];
 874 }
 875
 876 static void $UIWebViewWebViewDelegate$webView$didClearWindowObject$forFrame$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, WebScriptObject *window, WebFrame *frame) {
 877     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 878     if ([uiWebView respondsToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 879         [uiWebView webView:view didClearWindowObject:window forFrame:frame];
 880 }
 881
 882 + (void) initialize {
 883     if (Class $UIWebViewWebViewDelegate = objc_getClass("UIWebViewWebViewDelegate")) {
 884         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:addMessageToConsole:), (IMP) &$UIWebViewWebViewDelegate$webView$addMessageToConsole$, "v16@0:4@8@12");
 885         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:didClearWindowObject:forFrame:), (IMP) &$UIWebViewWebViewDelegate$webView$didClearWindowObject$forFrame$, "v20@0:4@8@12@16");
 886     }
 887
 888     if (float *_UIScrollViewDecelerationRateNormal = reinterpret_cast<float *>(dlsym(RTLD_DEFAULT, "UIScrollViewDecelerationRateNormal")))
 889         CYScrollViewDecelerationRateNormal = *_UIScrollViewDecelerationRateNormal;
 890     else // XXX: this actually might be fast on some older systems: we should look into this
 891         CYScrollViewDecelerationRateNormal = 0.998;
 892
 893     iOS4 = kCFCoreFoundationVersionNumber >= 550.32;
 894     iOS32 = !iOS4 && kCFCoreFoundationVersionNumber >= 478.61;
 895
 896     int maxproc;
 897     size_t size(sizeof(maxproc));
 898     if (sysctlbyname("kern.maxproc", &maxproc, &size, NULL, 0) == -1)
 899         NSLog(@"sysctlbyname(\"kern.maxproc\", ?)");
 900     else if (maxproc < 72) {
 901         maxproc = 72;
 902         if (sysctlbyname("kern.maxproc", NULL, NULL, &maxproc, sizeof(maxproc)) == -1)
 903             NSLog(@"sysctlbyname(\"kern.maxproc\", #)");
 904     }
 905
 906     apr_initialize();
 907
 908     [NSURLProtocol registerClass:[CydgetURLProtocol class]];
 909     [WebView registerURLSchemeAsLocal:@"cydget"];
 910
 911     [NSURLProtocol registerClass:[CydgetCGIURLProtocol class]];
 912     [WebView registerURLSchemeAsLocal:@"cydget-cgi"];
 913
 914     if (!iOS4) {
 915         void (*_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE)(JSC::SourceCode **, JSC::JSGlobalData *, int *, JSC::UString *);
 916         dlset(_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE, "_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE");
 917         if (_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE != NULL)
 918             MSHookFunction(_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE, MSHake(_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE));
 919     }
 920
 921     struct nlist nl[9];
 922     memset(nl, 0, sizeof(nl));
 923
 924     nl[0].n_un.n_name = (char *) "__ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE";
 925
 926     nl[1].n_un.n_name = (char *) "__ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi";
 927
 928     nl[2].n_un.n_name = (char *) "__ZN7WebCore12CachedScript6scriptEv";
 929     nl[3].n_un.n_name = (char *) "__ZNK7WebCore20StringSourceProvider6sourceEv";
 930
 931     nl[4].n_un.n_name = (char *) "__ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i";
 932     nl[5].n_un.n_name = (char *) "__ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE";
 933
 934     nl[6].n_un.n_name = (char *) "__ZN7WebCore6String6appendEPKtj";
 935     nl[7].n_un.n_name = (char *) "__ZN7WebCore6String8truncateEj";
 936
 937     nlist("/System/Library/PrivateFrameworks/WebCore.framework/WebCore", nl);
 938
 939     bool (*_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE)(const WebCore::String &);
 940     nlset(_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE, nl, 0);
 941     if (_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE != NULL)
 942         MSHookFunction(_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE, MSHake(_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE));
 943
 944     void (*_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi)(void *, const WebCore::String &, const WebCore::KURL &, int);
 945     nlset(_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi, nl, 1);
 946     if (_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi != NULL)
 947         MSHookFunction(_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi, MSHake(_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi));
 948
 949     if (iOS4) {
 950         const WebCore::String &(*_ZN7WebCore12CachedScript6scriptEv)(void *);
 951         nlset(_ZN7WebCore12CachedScript6scriptEv, nl, 2);
 952         if (_ZN7WebCore12CachedScript6scriptEv != NULL)
 953             MSHookFunction(_ZN7WebCore12CachedScript6scriptEv, MSHake(_ZN7WebCore12CachedScript6scriptEv));
 954     }
 955
 956     State (*_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i)(void *, const WebCore::String &, State, const WebCore::String &, int);
 957     nlset(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i, nl, 4);
 958     if (_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i != NULL)
 959         MSHookFunction(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i, MSHake(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i));
 960
 961     if (iOS4) {
 962         State (*_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE)(void *, void *, State);
 963         nlset(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE, nl, 5);
 964         if (_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE != NULL)
 965             MSHookFunction(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE, MSHake(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE));
 966     }
 967
 968     nlset(_ZN7WebCore6String6appendEPKtj, nl, 6);
 969     nlset(_ZN7WebCore6String8truncateEj, nl, 7);
 970
 971     MSImageRef JavaScriptCore(MSGetImageByName("/System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore"));
 972     MSImageRef WebCore(MSGetImageByName("/System/Library/PrivateFrameworks/WebCore.framework/WebCore"));
 973
 974     if (_ZN7WebCore6String6appendEPKtj == NULL)
 975         msset(_ZN7WebCore6String6appendEPKtj, JavaScriptCore);
 976
 977     if (_ZN7WebCore6String8truncateEj == NULL)
 978         msset(_ZN7WebCore6String8truncateEj, JavaScriptCore);
 979
 980     msset(_ZNK7WebCore6String10charactersEv, WebCore);
 981     msset(_ZN7WebCore6String29charactersWithNullTerminationEv, JavaScriptCore);
 982     msset(_ZNK7WebCore6String6lengthEv, WebCore);
 983 }
 984
 985 + (id) rootViewController {
 986     return [[[self alloc] init] autorelease];
 987 }
 988
 989 - (void) loadView {
 990     [self setView:[[[WebCydgetLockScreenView alloc] init] autorelease]];
 991 }
 992
 993 @end
 994
 995 MSClassHook(WebView)
 996 MSMetaClassHook(WebView)
 997
 998 MSClassMessageHook0(void, WebView, enableWebThread) {
 999     NSLog(@"-[WebView enableWebThread]");
1000 }