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解决奔驰POC项目关于沙箱加密问题 #3

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53d8efa
添加打开PDF解密定制逻辑
songxingjie Nov 9, 2018
56cbcf6
UexEMMGTMBase64 文件名修改
songxingjie Nov 10, 2018
827fd30
完善逻辑添加是否加密或解密逻辑
songxingjie May 14, 2019
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16 changes: 16 additions & 0 deletions EUExPDFReader/EUExPDFReader.xcodeproj/project.pbxproj
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,7 @@
5A9FF0C71890A84500E16C52 /* ThumbsMainToolbar.m in Sources */ = {isa = PBXBuildFile; fileRef = 5A9FF0B01890A84500E16C52 /* ThumbsMainToolbar.m */; settings = {COMPILER_FLAGS = "-fno-objc-arc"; }; };
5A9FF0C81890A84500E16C52 /* ThumbsViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 5A9FF0B21890A84500E16C52 /* ThumbsViewController.m */; settings = {COMPILER_FLAGS = "-fno-objc-arc"; }; };
5A9FF0C91890A84500E16C52 /* UIXToolbarView.m in Sources */ = {isa = PBXBuildFile; fileRef = 5A9FF0B41890A84500E16C52 /* UIXToolbarView.m */; settings = {COMPILER_FLAGS = "-fno-objc-arc"; }; };
C628055D2192FAA60033CBDC /* UexPDFGTMBase64.m in Sources */ = {isa = PBXBuildFile; fileRef = C628055B2192FAA60033CBDC /* UexPDFGTMBase64.m */; settings = {COMPILER_FLAGS = "-fno-objc-arc"; }; };
/* End PBXBuildFile section */

/* Begin PBXContainerItemProxy section */
Expand Down Expand Up @@ -140,6 +141,9 @@
5A9FF0B21890A84500E16C52 /* ThumbsViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ThumbsViewController.m; sourceTree = "<group>"; };
5A9FF0B31890A84500E16C52 /* UIXToolbarView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = UIXToolbarView.h; sourceTree = "<group>"; };
5A9FF0B41890A84500E16C52 /* UIXToolbarView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = UIXToolbarView.m; sourceTree = "<group>"; };
C628055A2192FAA60033CBDC /* UexPDFGTMBase64.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = UexPDFGTMBase64.h; sourceTree = "<group>"; };
C628055B2192FAA60033CBDC /* UexPDFGTMBase64.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = UexPDFGTMBase64.m; sourceTree = "<group>"; };
C628055C2192FAA60033CBDC /* UexEMMGTMDefines.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = UexEMMGTMDefines.h; sourceTree = "<group>"; };
FC16252A18AB6BCD00BEF700 /* EUExPDFReader.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = EUExPDFReader.h; sourceTree = "<group>"; };
/* End PBXFileReference section */

Expand Down Expand Up @@ -249,6 +253,7 @@
5A9FF08A1890A84400E16C52 /* sourceCode */ = {
isa = PBXGroup;
children = (
C62805592192FA880033CBDC /* GTMBase64 */,
427A05481EADE91A002BC8DE /* AppCanKit.framework */,
5A9FF08E1890A84500E16C52 /* ReaderViewController.h */,
5A9FF08F1890A84500E16C52 /* ReaderViewController.m */,
Expand Down Expand Up @@ -300,6 +305,16 @@
path = Sources;
sourceTree = "<group>";
};
C62805592192FA880033CBDC /* GTMBase64 */ = {
isa = PBXGroup;
children = (
C628055A2192FAA60033CBDC /* UexPDFGTMBase64.h */,
C628055B2192FAA60033CBDC /* UexPDFGTMBase64.m */,
C628055C2192FAA60033CBDC /* UexEMMGTMDefines.h */,
);
path = GTMBase64;
sourceTree = "<group>";
};
/* End PBXGroup section */

/* Begin PBXNativeTarget section */
Expand Down Expand Up @@ -415,6 +430,7 @@
5A9FF0BB1890A84500E16C52 /* ReaderContentTile.m in Sources */,
5A9FF0C71890A84500E16C52 /* ThumbsMainToolbar.m in Sources */,
5A9FF0BA1890A84500E16C52 /* ReaderContentPage.m in Sources */,
C628055D2192FAA60033CBDC /* UexPDFGTMBase64.m in Sources */,
5A9FF0C01890A84500E16C52 /* ReaderThumbCache.m in Sources */,
5A9FF0C21890A84500E16C52 /* ReaderThumbQueue.m in Sources */,
5A9FF0BE1890A84500E16C52 /* ReaderMainPagebar.m in Sources */,
Expand Down
2 changes: 2 additions & 0 deletions EUExPDFReader/EUExPDFReader/EUExPDFReader.h
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@

#import <AppCanKit/AppCanKit.h>

#define kStringWithFormat(object) object?[NSString stringWithFormat:@"%@",object]:nil


@interface EUExPDFReader : EUExBase

Expand Down
168 changes: 155 additions & 13 deletions EUExPDFReader/EUExPDFReader/EUExPDFReader.m
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Original file line number Diff line number Diff line change
Expand Up @@ -8,12 +8,15 @@

#import "EUExPDFReader.h"
#import "ReaderViewController.h"
#import "UexPDFGTMBase64.h"



@interface EUExPDFReader()<ReaderViewControllerDelegate,UIWebViewDelegate>
@property (nonatomic,strong)ReaderViewController *readerController;
@property (nonatomic,strong)UIWebView *pdfView;
@property(copy,nonatomic)NSString *filepath;

@end

@implementation EUExPDFReader
Expand All @@ -22,8 +25,8 @@ @implementation EUExPDFReader

- (void)openPDFReader:(NSMutableArray *)inArguments{

ACArgsUnpack(NSString *inPath,ACJSFunctionRef *callback) = inArguments;

ACArgsUnpack(NSString *inPath,NSString *encryptStr,ACJSFunctionRef *callback) = inArguments;
NSInteger isEncryptValue = [encryptStr integerValue];
if (!inPath) {

[callback executeWithArguments: ACArgsPack(@(1))];
Expand All @@ -35,7 +38,6 @@ - (void)openPDFReader:(NSMutableArray *)inArguments{
if (self.readerController) {
return;
}

NSString *absPath = [self absPath:inPath];
NSString *kResScheme = @"res://";
if ([inPath hasPrefix:kResScheme]) {
Expand All @@ -45,31 +47,168 @@ - (void)openPDFReader:(NSMutableArray *)inArguments{
if([[NSFileManager defaultManager] copyItemAtPath:absPath toPath:copyPath error:nil]){
absPath = copyPath;
}

}


//判断是否是加密的PDF(isEncryptValue:是否为加密 1：加密 0：非加密)
if (isEncryptValue == 1) {
//将获取到的文件路径放入PreferencePanes目录（临时文件，避免在沙盒中查到）
ReaderDocument *document = [ReaderDocument withDocumentFilePath:absPath password:nil];
NSString *documentPath2 = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES).firstObject;
NSString *fileName = [ReaderDocument GUID];
NSString *preferencePanesPath = [documentPath2 stringByAppendingPathComponent:fileName];
NSLog(@"ssssssss === %@",absPath);
[self func_decodeFile:absPath withNewName:preferencePanesPath];
absPath = preferencePanesPath;
self.filepath = preferencePanesPath;
}

//Document password (for unlocking most encrypted PDF files)
NSString *phrase = nil;
ReaderDocument *document = [ReaderDocument withDocumentFilePath:absPath password:phrase];
ReaderDocument *document = [ReaderDocument withDocumentFilePath:absPath password:phrase];

if (!document) {

[callback executeWithArguments: ACArgsPack(@(1))];

NSLog(@"没有PDF文件");
return;
}
else
else
{
[callback executeWithArguments: ACArgsPack(@(0))];

}

if (!self.readerController) {
self.readerController = [[ReaderViewController alloc] initWithReaderDocument:document];
self.readerController = [[ReaderViewController alloc] initWithReaderDocument:document withEUExObj:self];
}
self.readerController.delegate = self;
[[self.webViewEngine viewController] presentViewController:self.readerController animated:YES completion:nil];
}


/**
*文件加密
\array
\filePath 需要加密的文件路径
*/
-(void)fileEncrypt:(NSMutableArray *)array{
@try{
if ([array isKindOfClass:[NSMutableArray class]] && [array count] > 0) {
NSLog(@"appcan-->uexEMM-->fileEncrypt-->array is %@",array);
NSString *srcPath = [array objectAtIndex:0];
// srcPath = [NSHomeDirectory() stringByAppendingFormat:@"/Documents/1.mp4"];
if (![[NSFileManager defaultManager] fileExistsAtPath:srcPath]) {
NSString *jsString = [NSString stringWithFormat:@"uexPDFReader.cbFileEncrypt(\"0\",\"0\",\'');"];
if ([NSThread isMainThread]) {
// [self.meBrwView stringByEvaluatingJavaScriptFromString:jsString];
[self.webViewEngine evaluateScript:jsString];

}else{
[self performSelectorOnMainThread:@selector(callBackMethod:) withObject:jsString waitUntilDone:NO];
}
return;
}
[self func_encodeFile:srcPath withNewName:srcPath];
NSString *jsString = [NSString stringWithFormat:@"uexPDFReader.cbFileEncrypt(\"0\",\"0\",\"%@\");",srcPath];
if ([NSThread isMainThread]) {
// [self.meBrwView stringByEvaluatingJavaScriptFromString:jsString];
[self.webViewEngine evaluateScript:jsString];

}else{
[self performSelectorOnMainThread:@selector(callBackMethod:) withObject:jsString waitUntilDone:NO];
}
}
}@catch (NSException * e){
NSLog(@"appcan-->uexEMM-->fileEncrypt-->catch e is %@",e);
}
}

#define Key_Count (17)//加密字符串长度
static char arrayForEncode[Key_Count] = "appcan@3g2win.com";
#pragma mark ----- 解密method
-(BOOL)func_decodeFile:(NSString *)filePath withNewName:(NSString *)newFilePath {
if (nil == filePath || NO == [[NSFileManager defaultManager] fileExistsAtPath:filePath]) {
NSString *jsString = [NSString stringWithFormat:@"uexPDFReader.cbFileDecrypt(\"0\",\"0\",\'');"];
if ([NSThread isMainThread]) {
// [self.meBrwView stringByEvaluatingJavaScriptFromString:jsString];
[self.webViewEngine evaluateScript:jsString];

}else{
[self performSelectorOnMainThread:@selector(callBackMethod:) withObject:jsString waitUntilDone:NO];
}
return NO;
}
@autoreleasepool {
// 读取被加密文件对应的数据
NSData *dataEncoded = [NSData dataWithContentsOfFile:filePath];
// 对NSData进行base64解码
NSData *dataDecode = [UexPDFGTMBase64 decodeData:dataEncoded];

// 对前1000位进行异或处理
unsigned char * cByte = (unsigned char*)[dataDecode bytes];
for (int index = 0; (index < [dataDecode length]) && (index < Key_Count); index++, cByte++)
{
*cByte = (*cByte) ^ arrayForEncode[index];
}
NSLog(@"解密成功");
BOOL yes = [dataDecode writeToFile:newFilePath atomically:NO];
if (yes) {
NSLog(@"解密文件写入成功");
}else{
NSLog(@"解密文件写入失败");
}
return yes;
}
}

#pragma mark ----- 加密method（暂时没有被调用到）
-(BOOL)func_encodeFile:(NSString *)filePath withNewName:(NSString*)newFilePath {
if (nil == filePath || NO == [[NSFileManager defaultManager] fileExistsAtPath:filePath]) {
return NO;
}
@autoreleasepool {
//文件路径转换为NSData
NSData *imageDataOrigin = [NSData dataWithContentsOfFile:filePath];
// 对前1000位进行异或处理
unsigned char * cByte = (unsigned char*)[imageDataOrigin bytes];
for (int index = 0; (index < [imageDataOrigin length]) && (index < Key_Count); index++, cByte++)
{
*cByte = (*cByte) ^ arrayForEncode[index];
}

//对NSData进行base64编码
NSData *imageDataEncode = [UexPDFGTMBase64 encodeData:imageDataOrigin];
NSLog(@"加密成功");
NSLog(@"=================%@",newFilePath);
return [imageDataEncode writeToFile:newFilePath atomically:YES];


}
}

/**
*回调方法
\jsString 回调的js
*/
-(void)callBackMethod:(NSString *)jsString{

// [self.meBrwView stringByEvaluatingJavaScriptFromString:jsString];
[self.webViewEngine evaluateScript:jsString];
}

////原生异步回调JS给网页
//- (void)doCallback:(NSMutableArray *)inArguments{
// NSDictionary *dict = @{
// @"key":@"value"
// };
// //ac_JSONFragment 方法，可以将NSDictionary转换成JSON字符串
// [self.webViewEngine callbackWithFunctionKeyPath:@"uexPDFReader.cbDoCallback"
// arguments:ACArgsPack(dict.ac_JSONFragment)
// completion:^(JSValue * _Nullable returnValue) {
// if (returnValue) {
// ACLogDebug(@"回调成功!");
// }
// }];
//}


- (void)openView:(NSMutableArray *)inArguments{
Expand Down Expand Up @@ -111,6 +250,7 @@ - (void)openView:(NSMutableArray *)inArguments{

}


- (void)closeView:(NSMutableArray *)inArguments{
[self.pdfView removeFromSuperview];
self.pdfView.delegate = nil;
Expand All @@ -119,13 +259,15 @@ - (void)closeView:(NSMutableArray *)inArguments{


- (void)dismissReaderViewController:(ReaderViewController *)viewController{
//MARK:关闭查看PDF时删除解密存储文件。
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager removeItemAtPath:self.filepath error:nil];

NSLog(@"self.filepath =============== %@",self.filepath);
[self close:nil];

}




- (void)close:(NSMutableArray *)inArguments{
[self.readerController dismissViewControllerAnimated:YES completion:nil];
self.readerController.delegate = nil;
Expand Down
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