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 - (void) _setDrawInWebThread:(BOOL)draw;
 208 - (UIScrollView *) _scrollView;
 209 - (UIScroller *) _scroller;
 210 - (void) webView:(WebView *)view addMessageToConsole:(NSDictionary *)message;
 211 - (void) webView:(WebView *)view didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame;
 212 @end
 213
 214 @interface WebView (Apple)
 215 - (void) _setLayoutInterval:(float)interval;
 216 - (void) _setAllowsMessaging:(BOOL)allows;
 217 - (void) setShouldUpdateWhileOffscreen:(BOOL)update;
 218 @end
 219
 220 @protocol CydgetWebViewDelegate //<UIWebViewDelegate>
 221 - (void) webView:(WebView *)view didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame;
 222 @end
 223
 224 @class UIWebViewWebViewDelegate;
 225
 226 @interface CydgetWebView : UIWebView {
 227 }
 228
 229 @end
 230
 231 MSClassHook(UIApplication)
 232
 233 MSInstanceMessageHook1(void, UIApplication, openURL, NSURL *, url) {
 234     [self applicationOpenURL:url];
 235 }
 236
 237 @implementation NSURL (Cydget)
 238
 239 - (NSNumber *) cydget$isSpringboardHandledURL {
 240     return [NSNumber numberWithBool:[self isSpringboardHandledURL]];
 241 }
 242
 243 @end
 244
 245 MSClassHook(NSURL)
 246
 247 MSInstanceMessageHook0(BOOL, NSURL, isSpringboardHandledURL) {
 248     if (![NSThread isMainThread])
 249         return MSOldCall();
 250
 251     return [[self cydget$yieldToSelector:@selector(cydget$isSpringboardHandledURL)] boolValue];
 252 }
 253
 254 @implementation CydgetWebView
 255
 256 - (void) webView:(WebView *)view didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame {
 257     NSObject<CydgetWebViewDelegate> *delegate([self delegate]);
 258     if ([delegate respondsToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 259         [delegate webView:view didClearWindowObject:window forFrame:frame];
 260     if ([UIWebView instancesRespondToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 261         [super webView:view didClearWindowObject:window forFrame:frame];
 262 }
 263
 264 - (void) webView:(WebView *)view addMessageToConsole:(NSDictionary *)message {
 265     NSLog(@"addMessageToConsole:%@", message);
 266
 267     if ([UIWebView instancesRespondToSelector:@selector(webView:addMessageToConsole:)])
 268         [super webView:view addMessageToConsole:message];
 269 }
 270
 271 @end
 272
 273 @interface WebCydgetLockScreenView : UIView {
 274     CydgetWebView *webview_;
 275     UIScrollView *scroller_;
 276     NSString *cycript_;
 277 }
 278
 279 @end
 280
 281 @implementation WebCydgetLockScreenView
 282
 283 //#include "UICaboodle/UCInternal.h"
 284
 285 - (void) dealloc {
 286     [webview_ setDelegate:nil];
 287     [webview_ release];
 288     [super dealloc];
 289 }
 290
 291 - (void) loadRequest:(NSURLRequest *)request {
 292     [webview_ loadRequest:request];
 293 }
 294
 295 - (void) loadURL:(NSURL *)url cachePolicy:(NSURLRequestCachePolicy)policy {
 296     [self loadRequest:[NSURLRequest
 297         requestWithURL:url
 298         cachePolicy:policy
 299         timeoutInterval:30.0
 300     ]];
 301 }
 302
 303 - (void) loadURL:(NSURL *)url {
 304     [self loadURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy];
 305 }
 306
 307 - (id) init {
 308     CGRect frame = {{0, 0}, {320, 480}};
 309     frame.size.height -= 20; //[[[$SBStatusBarController sharedStatusBarController] statusBarView] frame].size.height;
 310
 311     if ((self = [super initWithFrame:frame]) != nil) {
 312         CGRect bounds([self bounds]);
 313         bounds.size.height -= [TPBottomLockBar defaultHeight];
 314
 315         webview_ = [[CydgetWebView alloc] initWithFrame:bounds];
 316         [webview_ setDelegate:self];
 317         [self addSubview:webview_];
 318
 319         if ([webview_ respondsToSelector:@selector(setDataDetectorTypes:)])
 320             [webview_ setDataDetectorTypes:0x80000000];
 321         else
 322             [webview_ setDetectsPhoneNumbers:NO];
 323
 324         [webview_ setScalesPageToFit:YES];
 325
 326         if ([webview_ respondsToSelector:@selector(_setDrawInWebThread:)])
 327             [webview_ _setDrawInWebThread:NO];
 328
 329         UIWebDocumentView *document([webview_ _documentView]);
 330         WebView *webview([document webView]);
 331         WebPreferences *preferences([webview preferences]);
 332
 333         [document setTileSize:CGSizeMake(bounds.size.width, 500)];
 334
 335         [document setBackgroundColor:[UIColor blackColor]];
 336         [document setDrawsBackground:NO];
 337
 338         [webview setPreferencesIdentifier:@"WebCycript"];
 339
 340         if ([webview respondsToSelector:@selector(_setLayoutInterval:)])
 341             [webview _setLayoutInterval:0];
 342         else
 343             [preferences _setLayoutInterval:0];
 344
 345         [preferences setCacheModel:WebCacheModelDocumentViewer];
 346         [preferences setJavaScriptCanOpenWindowsAutomatically:YES];
 347         [preferences setOfflineWebApplicationCacheEnabled:YES];
 348
 349         if ([webview respondsToSelector:@selector(setShouldUpdateWhileOffscreen:)])
 350             [webview setShouldUpdateWhileOffscreen:NO];
 351
 352         if ([document respondsToSelector:@selector(setAllowsMessaging:)])
 353             [document setAllowsMessaging:YES];
 354         if ([webview respondsToSelector:@selector(_setAllowsMessaging:)])
 355             [webview _setAllowsMessaging:YES];
 356
 357         if ([webview_ respondsToSelector:@selector(_scrollView)]) {
 358             scroller_ = [webview_ _scrollView];
 359
 360             [scroller_ setDirectionalLockEnabled:YES];
 361             [scroller_ setDecelerationRate:CYScrollViewDecelerationRateNormal];
 362             [scroller_ setDelaysContentTouches:NO];
 363
 364             [scroller_ setCanCancelContentTouches:YES];
 365
 366             [scroller_ setAlwaysBounceVertical:NO];
 367         } else if ([webview_ respondsToSelector:@selector(_scroller)]) {
 368             UIScroller *scroller([webview_ _scroller]);
 369             scroller_ = (UIScrollView *) scroller;
 370
 371             [scroller setDirectionalScrolling:YES];
 372             [scroller setScrollDecelerationFactor:CYScrollViewDecelerationRateNormal]; /* 0.989324 */
 373             [scroller setScrollHysteresis:0]; /* 8 */
 374
 375             [scroller setThumbDetectionEnabled:NO];
 376         }
 377
 378         [scroller_ setFixedBackgroundPattern:YES];
 379         [scroller_ setBackgroundColor:[UIColor blackColor]];
 380         [scroller_ setClipsSubviews:NO];
 381
 382         [scroller_ setBounces:YES];
 383         [scroller_ setShowBackgroundShadow:NO]; /* YES */
 384
 385         [self setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
 386         [webview_ setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
 387
 388         NSDictionary *configuration([$CydgetController currentConfiguration]);
 389
 390         cycript_ = [configuration objectForKey:@"CycriptURLs"];
 391
 392         [scroller_ setScrollingEnabled:[[configuration objectForKey:@"Scrollable"] boolValue]];
 393
 394         NSString *homepage([configuration objectForKey:@"Homepage"]);
 395         [self loadURL:[NSURL URLWithString:homepage]];
 396     } return self;
 397 }
 398
 399 - (void) webView:(WebView *)webview didClearWindowObject:(WebScriptObject *)window forFrame:(WebFrame *)frame {
 400     if (cycript_ != nil)
 401         if (NSString *href = [[[[frame dataSource] request] URL] absoluteString])
 402             if (Pcre([cycript_ UTF8String], 0 /*XXX:PCRE_UTF8*/)(href))
 403                 if (void *handle = dlopen("/usr/lib/libcycript.dylib", RTLD_LAZY | RTLD_GLOBAL))
 404                     if (void (*CYSetupContext)(JSGlobalContextRef) = reinterpret_cast<void (*)(JSGlobalContextRef)>(dlsym(handle, "CydgetSetupContext"))) {
 405                         WebFrame *frame([webview mainFrame]);
 406                         JSGlobalContextRef context([frame globalContext]);
 407                         CYSetupContext(context);
 408                     }
 409 }
 410
 411 @end
 412
 413 @interface WebCycriptLockScreenController : SBAwayViewPluginController {
 414 }
 415
 416 @end
 417
 418 #include <string>
 419
 420 struct State {
 421     unsigned state;
 422 };
 423
 424 // String Helpers {{{
 425 static const UChar *(*_ZNK7WebCore6String10charactersEv)(const WebCore::String *);
 426 static const UChar *(*_ZN7WebCore6String29charactersWithNullTerminationEv)(const WebCore::String *);
 427 static unsigned (*_ZNK7WebCore6String6lengthEv)(const WebCore::String *);
 428
 429 static bool StringGet(const WebCore::String &string, const UChar *&data, size_t &length) {
 430     bool terminated;
 431
 432     if (_ZNK7WebCore6String10charactersEv != NULL) {
 433         data = (*_ZNK7WebCore6String10charactersEv)(&string);
 434         terminated = false;
 435     } else if (_ZN7WebCore6String29charactersWithNullTerminationEv != NULL) {
 436         data = (*_ZN7WebCore6String29charactersWithNullTerminationEv)(&string);
 437         terminated = true;
 438     } else return false;
 439
 440     if (_ZNK7WebCore6String6lengthEv != NULL)
 441         length = (*_ZNK7WebCore6String6lengthEv)(&string);
 442     else if (terminated)
 443         for (length = 0; data[length] != 0; ++length);
 444     else return false;
 445
 446     return true;
 447 }
 448
 449 static bool StringEquals(const WebCore::String &string, const char *value) {
 450     const UChar *data;
 451     size_t size;
 452     if (!StringGet(string, data, size))
 453         return false;
 454
 455     size_t length(strlen(value));
 456     if (size != length)
 457         return false;
 458
 459     for (size_t index(0); index != length; ++index)
 460         if (data[index] != value[index])
 461             return false;
 462
 463     return true;
 464 }
 465 // }}}
 466 // State Machine {{{
 467 static bool cycript_;
 468
 469 MSHook(bool, _ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE, const WebCore::String &mime) {
 470     if (!StringEquals(mime, "text/cycript")) {
 471         cycript_ = false;
 472         return __ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE(mime);
 473     }
 474
 475     static void *handle(dlopen("/usr/lib/libcycript.dylib", RTLD_LAZY | RTLD_GLOBAL));
 476     if (handle == NULL)
 477         return false;
 478
 479     cycript_ = true;
 480     return true;
 481 }
 482 // }}}
 483 // Script Compiler {{{
 484 static void Log(const WebCore::String &string) {
 485 #if 0
 486     const UChar *data;
 487     size_t length;
 488     if (!StringGet(string, data, length))
 489         return;
 490
 491     UChar terminated[length + 1];
 492     terminated[length] = 0;
 493     memcpy(terminated, data, length * 2);
 494     NSLog(@"wtf %p:%zu:%S:", &string, length, terminated);
 495 #endif
 496 }
 497
 498 static void Cycriptify(apr_pool_t *pool, const uint16_t *&data, size_t &size) {
 499     cycript_ = false;
 500
 501     if (void *handle = dlopen("/usr/lib/libcycript.dylib", RTLD_LAZY | RTLD_GLOBAL))
 502         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")))
 503             CydgetPoolParse(pool, &data, &size);
 504 }
 505
 506 static void (*_ZN7WebCore6String6appendEPKtj)(WebCore::String *, const UChar *, unsigned);
 507 static void (*_ZN7WebCore6String8truncateEj)(WebCore::String *, unsigned);
 508
 509 static void Cycriptify(const WebCore::String &source, int *psize = NULL) {
 510     if (!cycript_)
 511         return;
 512
 513     const UChar *data;
 514     size_t length;
 515
 516     if (!StringGet(source, data, length)) {
 517         return;
 518     }
 519
 520     size_t size(length);
 521
 522     apr_pool_t *pool;
 523     apr_pool_create(&pool, NULL);
 524
 525     Cycriptify(pool, data, size);
 526
 527     WebCore::String &script(const_cast<WebCore::String &>(source));
 528
 529     _ZN7WebCore6String8truncateEj(&script, 0);
 530     _ZN7WebCore6String6appendEPKtj(&script, data, size);
 531
 532     if (psize != NULL)
 533         *psize = size;
 534
 535     apr_pool_destroy(pool);
 536
 537     Log(source);
 538 }
 539 // }}}
 540
 541 extern "C" void *_ZN3JSC7UString3Rep14nullBaseStringE __attribute__((__weak_import__));
 542 extern "C" void *_ZN3JSC7UString3Rep7destroyEv __attribute__((__weak_import__));
 543 extern "C" void *_ZN3JSC7UStringC1EPKti __attribute__((__weak_import__));
 544 extern "C" void *_ZN3JSC7UStringC1EPKc __attribute__((__weak_import__));
 545 extern "C" void *_ZNK3JSC7UString6substrEii __attribute__((__weak_import__));
 546 extern "C" void *_ZN3WTF10fastMallocEm __attribute__((__weak_import__));
 547 extern "C" void WTFReportAssertionFailure(const char *, int, const char *, const char *) __attribute__((__weak_import__));
 548 extern "C" void *_ZN3WTF8fastFreeEPv __attribute__((__weak_import__));
 549
 550 bool CYWeakHell() {
 551     return
 552         &_ZN3JSC7UString3Rep14nullBaseStringE == NULL ||
 553         &_ZN3JSC7UString3Rep7destroyEv == NULL ||
 554         &_ZN3JSC7UStringC1EPKti == NULL ||
 555         &_ZN3JSC7UStringC1EPKc == NULL ||
 556         &_ZNK3JSC7UString6substrEii == NULL ||
 557         &_ZN3WTF10fastMallocEm == NULL ||
 558         &WTFReportAssertionFailure == NULL ||
 559         &_ZN3WTF8fastFreeEPv == NULL ||
 560     false;
 561 }
 562
 563 static WebCore::String *string;
 564
 565 // iOS 2.x
 566 MSHook(State, _ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i, void *_this, const WebCore::String &string, State state, const WebCore::String &url, int line) {
 567     Cycriptify(string);
 568     return __ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i(_this, string, state, url, line);
 569 }
 570
 571 // iOS 3.x
 572 MSHook(void, _ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE, JSC::SourceCode **_this, JSC::JSGlobalData *global, int *line, JSC::UString *message) {
 573     if (cycript_) {
 574         JSC::SourceCode *source(_this[iOS32 ? 6 : 0]);
 575         const uint16_t *data(source->data());
 576         size_t size(source->length());
 577
 578         apr_pool_t *pool;
 579         apr_pool_create(&pool, NULL);
 580
 581         Cycriptify(pool, data, size);
 582         source->~SourceCode();
 583         // XXX: I actually don't have the original URL here: pants
 584         new (source) JSC::SourceCode(JSC::UStringSourceProvider::create(JSC::UString(data, size), "cycript://"), 1);
 585
 586         apr_pool_destroy(pool);
 587
 588     }
 589
 590     return __ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE(_this, global, line, message);
 591 }
 592
 593 // iOS 4.x cdata
 594 MSHook(void, _ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi, void *_this, const WebCore::String &source, const WebCore::KURL &url, int line) {
 595     Cycriptify(source);
 596     return __ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi(_this, source, url, line);
 597 }
 598
 599 // iOS 4.x @src=
 600 MSHook(const WebCore::String &, _ZN7WebCore12CachedScript6scriptEv, void *_this) {
 601     const WebCore::String &script(__ZN7WebCore12CachedScript6scriptEv(_this));
 602     string = const_cast<WebCore::String *>(&script);
 603     Log(script);
 604     return script;
 605 }
 606
 607 // iOS 4.x @src=
 608 MSHook(State, _ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE, void *_this, void *source, State state) {
 609     if (string != NULL) {
 610         if (iOS4)
 611             Cycriptify(*string, reinterpret_cast<int *>(source) + 3);
 612         else
 613             Cycriptify(*string);
 614     }
 615     string = NULL;
 616     return __ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE(_this, source, state);
 617 }
 618
 619 /* Cydget:// Protocol {{{ */
 620 @interface CydgetURLProtocol : NSURLProtocol {
 621 }
 622
 623 @end
 624
 625 @implementation CydgetURLProtocol
 626
 627 + (BOOL) canInitWithRequest:(NSURLRequest *)request {
 628     NSURL *url([request URL]);
 629     if (url == nil)
 630         return NO;
 631     NSString *scheme([[url scheme] lowercaseString]);
 632     if (scheme == nil || ![scheme isEqualToString:@"cydget"])
 633         return NO;
 634     return YES;
 635 }
 636
 637 + (NSURLRequest *) canonicalRequestForRequest:(NSURLRequest *)request {
 638     return request;
 639 }
 640
 641 - (void) _returnPNGWithImage:(UIImage *)icon forRequest:(NSURLRequest *)request {
 642     id<NSURLProtocolClient> client([self client]);
 643     if (icon == nil)
 644         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorFileDoesNotExist userInfo:nil]];
 645     else {
 646         NSData *data(UIImagePNGRepresentation(icon));
 647
 648         NSURLResponse *response([[[NSURLResponse alloc] initWithURL:[request URL] MIMEType:@"image/png" expectedContentLength:-1 textEncodingName:nil] autorelease]);
 649         [client URLProtocol:self didReceiveResponse:response cacheStoragePolicy:NSURLCacheStorageNotAllowed];
 650         [client URLProtocol:self didLoadData:data];
 651         [client URLProtocolDidFinishLoading:self];
 652     }
 653 }
 654
 655 - (void) startLoading {
 656     id<NSURLProtocolClient> client([self client]);
 657     NSURLRequest *request([self request]);
 658
 659     NSURL *url([request URL]);
 660     NSString *href([url absoluteString]);
 661
 662     NSString *path([href substringFromIndex:9]);
 663     NSRange slash([path rangeOfString:@"/"]);
 664
 665     NSString *command;
 666     if (slash.location == NSNotFound) {
 667         command = path;
 668         path = nil;
 669     } else {
 670         command = [path substringToIndex:slash.location];
 671         path = [path substringFromIndex:(slash.location + 1)];
 672     }
 673
 674     if ([command isEqualToString:@"_UIImageWithName"]) {
 675         if (path == nil)
 676             goto fail;
 677         path = [path stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
 678         UIImage *icon(_UIImageWithName(path));
 679         [self _returnPNGWithImage:icon forRequest:request];
 680     } else fail: {
 681         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorResourceUnavailable userInfo:nil]];
 682     }
 683 }
 684
 685 - (void) stopLoading {
 686 }
 687
 688 @end
 689 /* }}} */
 690 /* Cydget-CGI:// Protocol {{{ */
 691 @interface CydgetCGIURLProtocol : NSURLProtocol {
 692     pid_t pid_;
 693     CFHTTPMessageRef http_;
 694     NSFileHandle *handle_;
 695 }
 696
 697 @end
 698
 699 @implementation CydgetCGIURLProtocol
 700
 701 + (BOOL) canInitWithRequest:(NSURLRequest *)request {
 702     NSURL *url([request URL]);
 703     if (url == nil)
 704         return NO;
 705     NSString *scheme([[url scheme] lowercaseString]);
 706     if (scheme == nil || ![scheme isEqualToString:@"cydget-cgi"])
 707         return NO;
 708     return YES;
 709 }
 710
 711 + (NSURLRequest *) canonicalRequestForRequest:(NSURLRequest *)request {
 712     return request;
 713 }
 714
 715 - (id) initWithRequest:(NSURLRequest *)request cachedResponse:(NSCachedURLResponse *)response client:(id<NSURLProtocolClient>)client {
 716     if ((self = [super initWithRequest:request cachedResponse:response client:client]) != nil) {
 717         pid_ = -1;
 718     } return self;
 719 }
 720
 721 - (void) startLoading {
 722     id<NSURLProtocolClient> client([self client]);
 723     NSURLRequest *request([self request]);
 724     NSURL *url([request URL]);
 725
 726     NSString *path([url path]);
 727     if (path == nil) {
 728         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorResourceUnavailable userInfo:nil]];
 729         return;
 730     }
 731
 732     NSFileManager *manager([NSFileManager defaultManager]);
 733     if (![manager fileExistsAtPath:path]) {
 734         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorFileDoesNotExist userInfo:nil]];
 735         return;
 736     }
 737
 738     int fds[2];
 739     _assert(pipe(fds) != -1);
 740
 741     _assert(pid_ == -1);
 742     pid_ = fork();
 743     if (pid_ == -1) {
 744         _assert(close(fds[0]) != -1);
 745         _assert(close(fds[1]) != -1);
 746         [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorResourceUnavailable userInfo:nil]];
 747         return;
 748     }
 749
 750     if (pid_ == 0) {
 751         const char *script([path UTF8String]);
 752
 753         setenv("GATEWAY_INTERFACE", "CGI/1.1", true);
 754         setenv("SCRIPT_FILENAME", script, true);
 755         NSString *query([url query]);
 756         if (query != nil)
 757             setenv("QUERY_STRING", [query UTF8String], true);
 758
 759         _assert(dup2(fds[1], 1) != -1);
 760         _assert(close(fds[0]) != -1);
 761         _assert(close(fds[1]) != -1);
 762
 763         execl(script, script, NULL);
 764         exit(1);
 765         _assert(false);
 766     }
 767
 768     _assert(close(fds[1]) != -1);
 769
 770     _assert(http_ == NULL);
 771     http_ = CFHTTPMessageCreateEmpty(kCFAllocatorDefault, FALSE);
 772     CFHTTPMessageAppendBytes(http_, (const uint8_t *) "HTTP/1.1 200 OK\r\n", 17);
 773
 774     _assert(handle_ == nil);
 775     handle_ = [[NSFileHandle alloc] initWithFileDescriptor:fds[0] closeOnDealloc:YES];
 776
 777     [[NSNotificationCenter defaultCenter]
 778         addObserver:self
 779         selector:@selector(onRead:)
 780         name:@"NSFileHandleReadCompletionNotification"
 781         object:handle_
 782     ];
 783
 784     [handle_ readInBackgroundAndNotify];
 785 }
 786
 787 - (void) onRead:(NSNotification *)notification {
 788     NSFileHandle *handle([notification object]);
 789
 790     NSData *data([[notification userInfo] objectForKey:NSFileHandleNotificationDataItem]);
 791
 792     if (size_t length = [data length]) {
 793         CFHTTPMessageAppendBytes(http_, reinterpret_cast<const UInt8 *>([data bytes]), length);
 794         [handle readInBackgroundAndNotify];
 795     } else {
 796         id<NSURLProtocolClient> client([self client]);
 797
 798         CFStringRef mime(CFHTTPMessageCopyHeaderFieldValue(http_, CFSTR("Content-type")));
 799         if (mime == NULL)
 800             [client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorBadServerResponse userInfo:nil]];
 801         else {
 802             NSURLRequest *request([self request]);
 803
 804             NSURLResponse *response([[[NSURLResponse alloc] initWithURL:[request URL] MIMEType:(NSString *)mime expectedContentLength:-1 textEncodingName:nil] autorelease]);
 805             CFRelease(mime);
 806
 807             [client URLProtocol:self didReceiveResponse:response cacheStoragePolicy:NSURLCacheStorageNotAllowed];
 808
 809             CFDataRef body(CFHTTPMessageCopyBody(http_));
 810             [client URLProtocol:self didLoadData:(NSData *)body];
 811             CFRelease(body);
 812
 813             [client URLProtocolDidFinishLoading:self];
 814         }
 815
 816         CFRelease(http_);
 817         http_ = NULL;
 818     }
 819 }
 820
 821     //[client URLProtocol:self didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorNetworkConnectionLost userInfo:nil]];
 822
 823 - (void) stopLoading_ {
 824     [[NSNotificationCenter defaultCenter] removeObserver:self];
 825
 826     if (handle_ != nil) {
 827         [handle_ release];
 828         handle_ = nil;
 829     }
 830
 831     if (pid_ != -1) {
 832         kill(pid_, SIGTERM);
 833         int status;
 834         _syscall(waitpid(pid_, &status, 0));
 835         pid_ = -1;
 836     }
 837 }
 838
 839 - (void) stopLoading {
 840     [self
 841         performSelectorOnMainThread:@selector(stopLoading_)
 842         withObject:nil
 843         waitUntilDone:NO
 844     ];
 845 }
 846
 847 @end
 848 /* }}} */
 849
 850 template <typename Type_>
 851 static void nlset(Type_ &function, struct nlist *nl, size_t index) {
 852     struct nlist &name(nl[index]);
 853     uintptr_t value(name.n_value);
 854     if ((name.n_desc & N_ARM_THUMB_DEF) != 0)
 855         value |= 0x00000001;
 856     function = reinterpret_cast<Type_>(value);
 857 }
 858
 859 template <typename Type_>
 860 static void dlset(Type_ &function, const char *name) {
 861     function = reinterpret_cast<Type_>(dlsym(RTLD_DEFAULT, name));
 862 }
 863
 864 template <typename Type_>
 865 static void msset_(Type_ &function, const char *name, MSImageRef handle) {
 866     function = reinterpret_cast<Type_>(MSFindSymbol(handle, name));
 867 }
 868
 869 #define msset(function, handle) \
 870     msset_(function, "_" #function, handle)
 871
 872 @implementation WebCycriptLockScreenController
 873
 874 static void $UIWebViewWebViewDelegate$webView$addMessageToConsole$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, NSDictionary *message) {
 875     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 876     if ([uiWebView respondsToSelector:@selector(webView:addMessageToConsole:)])
 877         [uiWebView webView:view addMessageToConsole:message];
 878 }
 879
 880 static void $UIWebViewWebViewDelegate$webView$didClearWindowObject$forFrame$(UIWebViewWebViewDelegate *self, SEL sel, WebView *view, WebScriptObject *window, WebFrame *frame) {
 881     UIWebView *uiWebView(MSHookIvar<UIWebView *>(self, "uiWebView"));
 882     if ([uiWebView respondsToSelector:@selector(webView:didClearWindowObject:forFrame:)])
 883         [uiWebView webView:view didClearWindowObject:window forFrame:frame];
 884 }
 885
 886 + (void) initialize {
 887     if (Class $UIWebViewWebViewDelegate = objc_getClass("UIWebViewWebViewDelegate")) {
 888         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:addMessageToConsole:), (IMP) &$UIWebViewWebViewDelegate$webView$addMessageToConsole$, "v16@0:4@8@12");
 889         class_addMethod($UIWebViewWebViewDelegate, @selector(webView:didClearWindowObject:forFrame:), (IMP) &$UIWebViewWebViewDelegate$webView$didClearWindowObject$forFrame$, "v20@0:4@8@12@16");
 890     }
 891
 892     if (float *_UIScrollViewDecelerationRateNormal = reinterpret_cast<float *>(dlsym(RTLD_DEFAULT, "UIScrollViewDecelerationRateNormal")))
 893         CYScrollViewDecelerationRateNormal = *_UIScrollViewDecelerationRateNormal;
 894     else // XXX: this actually might be fast on some older systems: we should look into this
 895         CYScrollViewDecelerationRateNormal = 0.998;
 896
 897     iOS4 = kCFCoreFoundationVersionNumber >= 550.32;
 898     iOS32 = !iOS4 && kCFCoreFoundationVersionNumber >= 478.61;
 899
 900     int maxproc;
 901     size_t size(sizeof(maxproc));
 902     if (sysctlbyname("kern.maxproc", &maxproc, &size, NULL, 0) == -1)
 903         NSLog(@"sysctlbyname(\"kern.maxproc\", ?)");
 904     else if (maxproc < 72) {
 905         maxproc = 72;
 906         if (sysctlbyname("kern.maxproc", NULL, NULL, &maxproc, sizeof(maxproc)) == -1)
 907             NSLog(@"sysctlbyname(\"kern.maxproc\", #)");
 908     }
 909
 910     apr_initialize();
 911
 912     [NSURLProtocol registerClass:[CydgetURLProtocol class]];
 913     [WebView registerURLSchemeAsLocal:@"cydget"];
 914
 915     [NSURLProtocol registerClass:[CydgetCGIURLProtocol class]];
 916     [WebView registerURLSchemeAsLocal:@"cydget-cgi"];
 917
 918     if (!iOS4) {
 919         void (*_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE)(JSC::SourceCode **, JSC::JSGlobalData *, int *, JSC::UString *);
 920         dlset(_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE, "_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE");
 921         if (_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE != NULL)
 922             MSHookFunction(_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE, MSHake(_ZN3JSC6Parser5parseEPNS_12JSGlobalDataEPiPNS_7UStringE));
 923     }
 924
 925     struct nlist nl[9];
 926     memset(nl, 0, sizeof(nl));
 927
 928     nl[0].n_un.n_name = (char *) "__ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE";
 929
 930     nl[1].n_un.n_name = (char *) "__ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi";
 931
 932     nl[2].n_un.n_name = (char *) "__ZN7WebCore12CachedScript6scriptEv";
 933     nl[3].n_un.n_name = (char *) "__ZNK7WebCore20StringSourceProvider6sourceEv";
 934
 935     nl[4].n_un.n_name = (char *) "__ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i";
 936     nl[5].n_un.n_name = (char *) "__ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE";
 937
 938     nl[6].n_un.n_name = (char *) "__ZN7WebCore6String6appendEPKtj";
 939     nl[7].n_un.n_name = (char *) "__ZN7WebCore6String8truncateEj";
 940
 941     nlist("/System/Library/PrivateFrameworks/WebCore.framework/WebCore", nl);
 942
 943     bool (*_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE)(const WebCore::String &);
 944     nlset(_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE, nl, 0);
 945     if (_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE != NULL)
 946         MSHookFunction(_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE, MSHake(_ZN7WebCore16MIMETypeRegistry29isSupportedJavaScriptMIMETypeERKNS_6StringE));
 947
 948     void (*_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi)(void *, const WebCore::String &, const WebCore::KURL &, int);
 949     nlset(_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi, nl, 1);
 950     if (_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi != NULL)
 951         MSHookFunction(_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi, MSHake(_ZN7WebCore16ScriptSourceCodeC2ERKNS_6StringERKNS_4KURLEi));
 952
 953     if (iOS4) {
 954         const WebCore::String &(*_ZN7WebCore12CachedScript6scriptEv)(void *);
 955         nlset(_ZN7WebCore12CachedScript6scriptEv, nl, 2);
 956         if (_ZN7WebCore12CachedScript6scriptEv != NULL)
 957             MSHookFunction(_ZN7WebCore12CachedScript6scriptEv, MSHake(_ZN7WebCore12CachedScript6scriptEv));
 958     }
 959
 960     State (*_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i)(void *, const WebCore::String &, State, const WebCore::String &, int);
 961     nlset(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i, nl, 4);
 962     if (_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i != NULL)
 963         MSHookFunction(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i, MSHake(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_6StringENS0_5StateES3_i));
 964
 965     if (iOS4) {
 966         State (*_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE)(void *, void *, State);
 967         nlset(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE, nl, 5);
 968         if (_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE != NULL)
 969             MSHookFunction(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE, MSHake(_ZN7WebCore13HTMLTokenizer15scriptExecutionERKNS_16ScriptSourceCodeENS0_5StateE));
 970     }
 971
 972     nlset(_ZN7WebCore6String6appendEPKtj, nl, 6);
 973     nlset(_ZN7WebCore6String8truncateEj, nl, 7);
 974
 975     MSImageRef JavaScriptCore(MSGetImageByName("/System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore"));
 976     MSImageRef WebCore(MSGetImageByName("/System/Library/PrivateFrameworks/WebCore.framework/WebCore"));
 977
 978     if (_ZN7WebCore6String6appendEPKtj == NULL)
 979         msset(_ZN7WebCore6String6appendEPKtj, JavaScriptCore);
 980
 981     if (_ZN7WebCore6String8truncateEj == NULL)
 982         msset(_ZN7WebCore6String8truncateEj, JavaScriptCore);
 983
 984     msset(_ZNK7WebCore6String10charactersEv, WebCore);
 985     msset(_ZN7WebCore6String29charactersWithNullTerminationEv, JavaScriptCore);
 986     msset(_ZNK7WebCore6String6lengthEv, WebCore);
 987 }
 988
 989 + (id) rootViewController {
 990     return [[[self alloc] init] autorelease];
 991 }
 992
 993 - (void) loadView {
 994     [self setView:[[[WebCydgetLockScreenView alloc] init] autorelease]];
 995 }
 996
 997 @end
 998
 999 MSClassHook(WebView)
1000 MSMetaClassHook(WebView)
1001
1002 MSClassMessageHook0(void, WebView, enableWebThread) {
1003     NSLog(@"-[WebView enableWebThread]");
1004 }