forked from MugunthKumar/MKNetworkKit
/
MKNetworkOperation.m
1226 lines (917 loc) · 45.9 KB
/
MKNetworkOperation.m
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//
// MKNetworkOperation.m
// MKNetworkKit
//
// Created by Mugunth Kumar (@mugunthkumar) on 11/11/11.
// Copyright (C) 2011-2020 by Steinlogic
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#import "MKNetworkOperation.h"
#import "NSDictionary+RequestEncoding.h"
#import "NSString+MKNetworkKitAdditions.h"
@interface MKNetworkOperation (/*Private Methods*/)
@property (strong, nonatomic) NSURLConnection *connection;
@property (strong, nonatomic) NSString *uniqueId;
@property (strong, nonatomic) NSMutableURLRequest *request;
@property (strong, nonatomic) NSHTTPURLResponse *response;
@property (strong, nonatomic) NSMutableDictionary *fieldsToBePosted;
@property (strong, nonatomic) NSMutableArray *filesToBePosted;
@property (strong, nonatomic) NSMutableArray *dataToBePosted;
@property (strong, nonatomic) NSString *username;
@property (strong, nonatomic) NSString *password;
@property (nonatomic, strong) NSMutableArray *responseBlocks;
@property (nonatomic, strong) NSMutableArray *errorBlocks;
@property (nonatomic, assign) MKNetworkOperationState state;
@property (nonatomic, assign) BOOL isCancelled;
@property (strong, nonatomic) NSMutableData *mutableData;
@property (assign, nonatomic) NSUInteger downloadedDataSize;
@property (nonatomic, strong) NSMutableArray *uploadProgressChangedHandlers;
@property (nonatomic, strong) NSMutableArray *downloadProgressChangedHandlers;
@property (nonatomic, copy) MKNKEncodingBlock postDataEncodingHandler;
@property (nonatomic, assign) NSInteger startPosition;
@property (nonatomic, strong) NSMutableArray *downloadStreams;
@property (nonatomic, strong) NSData *cachedResponse;
@property (nonatomic, copy) MKNKResponseBlock cacheHandlingBlock;
#if TARGET_OS_IPHONE
@property (nonatomic, assign) UIBackgroundTaskIdentifier backgroundTaskId;
#endif
@property (strong, nonatomic) NSError *error;
- (id)initWithURLString:(NSString *)aURLString
params:(NSMutableDictionary *)body
httpMethod:(NSString *)method;
-(NSData*) bodyData;
-(BOOL) isCacheable;
-(NSString*) encodedPostDataString;
- (void) showLocalNotification;
- (void) endBackgroundTask;
@end
@implementation MKNetworkOperation
@synthesize postDataEncoding = _postDataEncoding;
@synthesize postDataEncodingHandler = _postDataEncodingHandler;
@synthesize stringEncoding = _stringEncoding;
@dynamic freezable;
@synthesize uniqueId = _uniqueId; // freezable operations have a unique id
@synthesize connection = _connection;
@synthesize request = _request;
@synthesize response = _response;
@synthesize fieldsToBePosted = _fieldsToBePosted;
@synthesize filesToBePosted = _filesToBePosted;
@synthesize dataToBePosted = _dataToBePosted;
@synthesize username = _username;
@synthesize password = _password;
@synthesize clientCertificate = _clientCertificate;
@synthesize authHandler = _authHandler;
@synthesize operationStateChangedHandler = _operationStateChangedHandler;
@synthesize responseBlocks = _responseBlocks;
@synthesize errorBlocks = _errorBlocks;
@synthesize isCancelled = _isCancelled;
@synthesize mutableData = _mutableData;
@synthesize downloadedDataSize = downloadedDataSize_;
@synthesize uploadProgressChangedHandlers = _uploadProgressChangedHandlers;
@synthesize downloadProgressChangedHandlers = _downloadProgressChangedHandlers;
@synthesize downloadStreams = _downloadStreams;
@synthesize cachedResponse = _cachedResponse;
@synthesize cacheHandlingBlock = _cacheHandlingBlock;
@synthesize credentialPersistence = _credentialPersistence;
@synthesize localNotification = localNotification_;
@synthesize shouldShowLocalNotificationOnError = shouldShowLocalNotificationOnError_;
@synthesize startPosition = _startPosition;
#if TARGET_OS_IPHONE
@synthesize backgroundTaskId = _backgroundTaskId;
#endif
@synthesize cacheHeaders = _cacheHeaders;
@synthesize error = _error;
// A RESTful service should always return the same response for a given URL and it's parameters.
// this means if these values are correct, you can cache the responses
// This is another reason why we check only GET methods.
// even if URL and others are same, POST, DELETE, PUT methods should not be cached and should not be treated equal.
-(BOOL) isCacheable {
return [self.request.HTTPMethod isEqualToString:@"GET"];
}
-(NSString*) encodedPostDataString {
NSString *returnValue = @"";
if(self.postDataEncodingHandler)
returnValue = self.postDataEncodingHandler(self.fieldsToBePosted);
else if(self.postDataEncoding == MKNKPostDataEncodingTypeURL)
returnValue = [self.fieldsToBePosted urlEncodedKeyValueString];
else if(self.postDataEncoding == MKNKPostDataEncodingTypeJSON)
returnValue = [self.fieldsToBePosted jsonEncodedKeyValueString];
else if(self.postDataEncoding == MKNKPostDataEncodingTypePlist)
returnValue = [self.fieldsToBePosted plistEncodedKeyValueString];
return returnValue;
}
-(void) setCustomPostDataEncodingHandler:(MKNKEncodingBlock) postDataEncodingHandler forType:(NSString*) contentType {
NSString *charset = (__bridge NSString *)CFStringConvertEncodingToIANACharSetName(CFStringConvertNSStringEncodingToEncoding(self.stringEncoding));
self.postDataEncodingHandler = postDataEncodingHandler;
[self.request setValue:
[NSString stringWithFormat:@"%@; charset=%@", contentType, charset]
forHTTPHeaderField:@"Content-Type"];
}
//===========================================================
// freezable
//===========================================================
- (BOOL)freezable
{
return _freezable;
}
-(NSString*) url {
return [[self.request URL] absoluteString];
}
-(NSURLRequest*) readonlyRequest {
return [self.request copy];
}
-(NSHTTPURLResponse*) readonlyResponse {
return [self.response copy];
}
- (NSDictionary *) readonlyPostDictionary {
return [self.fieldsToBePosted copy];
}
-(NSString*) HTTPMethod {
return self.request.HTTPMethod;
}
-(NSInteger) HTTPStatusCode {
if(self.response)
return self.response.statusCode;
else
return 0;
}
- (void)setFreezable:(BOOL)flag
{
// get method cannot be frozen.
// No point in freezing a method that doesn't change server state.
if([self.request.HTTPMethod isEqualToString:@"GET"] && flag) return;
_freezable = flag;
if(_freezable && self.uniqueId == nil)
self.uniqueId = [NSString uniqueString];
}
-(BOOL) isEqual:(id)object {
if([self.request.HTTPMethod isEqualToString:@"GET"] || [self.request.HTTPMethod isEqualToString:@"HEAD"]) {
MKNetworkOperation *anotherObject = (MKNetworkOperation*) object;
return ([[self uniqueIdentifier] isEqualToString:[anotherObject uniqueIdentifier]]);
}
return NO;
}
-(NSString*) uniqueIdentifier {
NSString *str = [self curlCommandLineString];
if(self.username || self.password) {
str = [str stringByAppendingFormat:@" [%@:%@]",
self.username ? self.username : @"",
self.password ? self.password : @""];
}
if(self.freezable) {
str = [str stringByAppendingString:self.uniqueId];
}
return [str md5];
}
-(BOOL) isCachedResponse {
return self.cachedResponse != nil;
}
-(void) notifyCache {
if(![self isCacheable]) return;
if(!([self.response statusCode] >= 200 && [self.response statusCode] < 300)) return;
self.cacheHandlingBlock(self);
}
-(MKNetworkOperationState) state {
return _state;
}
-(void) setState:(MKNetworkOperationState)newState {
switch (newState) {
case MKNetworkOperationStateReady:
[self willChangeValueForKey:@"isReady"];
break;
case MKNetworkOperationStateExecuting:
[self willChangeValueForKey:@"isReady"];
[self willChangeValueForKey:@"isExecuting"];
break;
case MKNetworkOperationStateFinished:
[self willChangeValueForKey:@"isExecuting"];
[self willChangeValueForKey:@"isFinished"];
break;
}
_state = newState;
switch (newState) {
case MKNetworkOperationStateReady:
[self didChangeValueForKey:@"isReady"];
break;
case MKNetworkOperationStateExecuting:
[self didChangeValueForKey:@"isReady"];
[self didChangeValueForKey:@"isExecuting"];
break;
case MKNetworkOperationStateFinished:
[self didChangeValueForKey:@"isExecuting"];
[self didChangeValueForKey:@"isFinished"];
break;
}
if(self.operationStateChangedHandler) {
self.operationStateChangedHandler(newState);
}
}
- (void)encodeWithCoder:(NSCoder *)encoder
{
[encoder encodeInteger:self.stringEncoding forKey:@"stringEncoding"];
[encoder encodeObject:self.uniqueId forKey:@"uniqueId"];
[encoder encodeObject:self.request forKey:@"request"];
[encoder encodeObject:self.response forKey:@"response"];
[encoder encodeObject:self.fieldsToBePosted forKey:@"fieldsToBePosted"];
[encoder encodeObject:self.filesToBePosted forKey:@"filesToBePosted"];
[encoder encodeObject:self.dataToBePosted forKey:@"dataToBePosted"];
[encoder encodeObject:self.username forKey:@"username"];
[encoder encodeObject:self.password forKey:@"password"];
[encoder encodeObject:self.clientCertificate forKey:@"clientCertificate"];
self.state = MKNetworkOperationStateReady;
[encoder encodeInt32:_state forKey:@"state"];
[encoder encodeBool:self.isCancelled forKey:@"isCancelled"];
[encoder encodeObject:self.mutableData forKey:@"mutableData"];
[encoder encodeInteger:self.downloadedDataSize forKey:@"downloadedDataSize"];
[encoder encodeObject:self.downloadStreams forKey:@"downloadStreams"];
[encoder encodeInteger:self.startPosition forKey:@"startPosition"];
[encoder encodeInteger:self.credentialPersistence forKey:@"credentialPersistence"];
}
- (id)initWithCoder:(NSCoder *)decoder
{
self = [super init];
if (self) {
[self setStringEncoding:[decoder decodeIntegerForKey:@"stringEncoding"]];
self.request = [decoder decodeObjectForKey:@"request"];
self.uniqueId = [decoder decodeObjectForKey:@"uniqueId"];
self.response = [decoder decodeObjectForKey:@"response"];
self.fieldsToBePosted = [decoder decodeObjectForKey:@"fieldsToBePosted"];
self.filesToBePosted = [decoder decodeObjectForKey:@"filesToBePosted"];
self.dataToBePosted = [decoder decodeObjectForKey:@"dataToBePosted"];
self.username = [decoder decodeObjectForKey:@"username"];
self.password = [decoder decodeObjectForKey:@"password"];
self.clientCertificate = [decoder decodeObjectForKey:@"clientCertificate"];
[self setState:[decoder decodeInt32ForKey:@"state"]];
self.isCancelled = [decoder decodeBoolForKey:@"isCancelled"];
self.mutableData = [decoder decodeObjectForKey:@"mutableData"];
self.downloadedDataSize = [decoder decodeIntegerForKey:@"downloadedDataSize"];
self.downloadStreams = [decoder decodeObjectForKey:@"downloadStreams"];
self.startPosition = [decoder decodeIntegerForKey:@"startPosition"];
self.credentialPersistence = [decoder decodeIntegerForKey:@"credentialPersistence"];
}
return self;
}
- (id)copyWithZone:(NSZone *)zone
{
MKNetworkOperation *theCopy = [[[self class] allocWithZone:zone] init]; // use designated initializer
[theCopy setStringEncoding:self.stringEncoding];
[theCopy setUniqueId:[self.uniqueId copy]];
[theCopy setConnection:[self.connection copy]];
[theCopy setRequest:[self.request copy]];
[theCopy setResponse:[self.response copy]];
[theCopy setFieldsToBePosted:[self.fieldsToBePosted copy]];
[theCopy setFilesToBePosted:[self.filesToBePosted copy]];
[theCopy setDataToBePosted:[self.dataToBePosted copy]];
[theCopy setUsername:[self.username copy]];
[theCopy setPassword:[self.password copy]];
[theCopy setClientCertificate:[self.clientCertificate copy]];
[theCopy setResponseBlocks:[self.responseBlocks copy]];
[theCopy setErrorBlocks:[self.errorBlocks copy]];
[theCopy setState:self.state];
[theCopy setIsCancelled:self.isCancelled];
[theCopy setMutableData:[self.mutableData copy]];
[theCopy setDownloadedDataSize:self.downloadedDataSize];
[theCopy setUploadProgressChangedHandlers:[self.uploadProgressChangedHandlers copy]];
[theCopy setDownloadProgressChangedHandlers:[self.downloadProgressChangedHandlers copy]];
[theCopy setDownloadStreams:[self.downloadStreams copy]];
[theCopy setCachedResponse:[self.cachedResponse copy]];
[theCopy setCacheHandlingBlock:self.cacheHandlingBlock];
[theCopy setStartPosition:self.startPosition];
[theCopy setCredentialPersistence:self.credentialPersistence];
return theCopy;
}
-(void) dealloc {
[_connection cancel];
_connection = nil;
}
-(void) updateHandlersFromOperation:(MKNetworkOperation*) operation {
[self.responseBlocks addObjectsFromArray:operation.responseBlocks];
[self.errorBlocks addObjectsFromArray:operation.errorBlocks];
[self.uploadProgressChangedHandlers addObjectsFromArray:operation.uploadProgressChangedHandlers];
[self.downloadProgressChangedHandlers addObjectsFromArray:operation.downloadProgressChangedHandlers];
[self.downloadStreams addObjectsFromArray:operation.downloadStreams];
}
-(void) setCachedData:(NSData*) cachedData {
self.cachedResponse = cachedData;
[self operationSucceeded];
}
-(void) updateOperationBasedOnPreviousHeaders:(NSMutableDictionary*) headers {
NSString *lastModified = [headers objectForKey:@"Last-Modified"];
NSString *eTag = [headers objectForKey:@"ETag"];
/* Not really necessary to set the method as "HEAD" We do need the complete data if it was modified */
if(lastModified) {
//[self.request setHTTPMethod:@"HEAD"];
[self.request setValue:lastModified forHTTPHeaderField:@"IF-MODIFIED-SINCE"];
}
if(eTag) {
//[self.request setHTTPMethod:@"HEAD"];
[self.request setValue:eTag forHTTPHeaderField:@"IF-NONE-MATCH"];
}
}
-(void) setUsername:(NSString*) username password:(NSString*) password {
self.username = username;
self.password = password;
}
-(void) setUsername:(NSString*) username password:(NSString*) password basicAuth:(BOOL) bYesOrNo {
[self setUsername:username password:password];
NSString *base64EncodedString = [[[NSString stringWithFormat:@"%@:%@", self.username, self.password] dataUsingEncoding:NSUTF8StringEncoding] base64EncodedString];
[self addHeaders:[NSDictionary dictionaryWithObject:[NSString stringWithFormat:@"Basic %@", base64EncodedString] forKey:@"Authorization"]];
}
-(void) onCompletion:(MKNKResponseBlock) response onError:(MKNKErrorBlock) error {
[self.responseBlocks addObject:[response copy]];
[self.errorBlocks addObject:[error copy]];
}
-(void) onUploadProgressChanged:(MKNKProgressBlock) uploadProgressBlock {
[self.uploadProgressChangedHandlers addObject:[uploadProgressBlock copy]];
}
-(void) onDownloadProgressChanged:(MKNKProgressBlock) downloadProgressBlock {
[self.downloadProgressChangedHandlers addObject:[downloadProgressBlock copy]];
}
-(void) setUploadStream:(NSInputStream*) inputStream {
#warning Method not tested yet.
self.request.HTTPBodyStream = inputStream;
}
-(void) addDownloadStream:(NSOutputStream*) outputStream {
[self.downloadStreams addObject:outputStream];
}
- (id)initWithURLString:(NSString *)aURLString
params:(NSMutableDictionary *)params
httpMethod:(NSString *)method
{
if((self = [super init])) {
self.responseBlocks = [NSMutableArray array];
self.errorBlocks = [NSMutableArray array];
self.filesToBePosted = [NSMutableArray array];
self.dataToBePosted = [NSMutableArray array];
self.fieldsToBePosted = [NSMutableDictionary dictionary];
self.uploadProgressChangedHandlers = [NSMutableArray array];
self.downloadProgressChangedHandlers = [NSMutableArray array];
self.downloadStreams = [NSMutableArray array];
self.credentialPersistence = NSURLCredentialPersistenceForSession;
NSURL *finalURL = nil;
if(params)
self.fieldsToBePosted = params;
self.stringEncoding = NSUTF8StringEncoding; // use a delegate to get these values later
if ([method isEqualToString:@"GET"])
self.cacheHeaders = [NSMutableDictionary dictionary];
if (([method isEqualToString:@"GET"] ||
[method isEqualToString:@"DELETE"]) && (params && [params count] > 0)) {
finalURL = [NSURL URLWithString:[NSString stringWithFormat:@"%@?%@", aURLString,
[self encodedPostDataString]]];
} else {
finalURL = [NSURL URLWithString:aURLString];
}
self.request = [NSMutableURLRequest requestWithURL:finalURL
cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
timeoutInterval:kMKNetworkKitRequestTimeOutInSeconds];
[self.request setHTTPMethod:method];
NSString *charset = (__bridge NSString *)CFStringConvertEncodingToIANACharSetName(CFStringConvertNSStringEncodingToEncoding(self.stringEncoding));
[self.request setValue:[NSString stringWithFormat:@"%@, en-us",
[[NSLocale preferredLanguages] componentsJoinedByString:@", "]
] forHTTPHeaderField:@"Accept-Language"];
if (([method isEqualToString:@"POST"] ||
[method isEqualToString:@"PUT"]) && (params && [params count] > 0)) {
switch (self.postDataEncoding) {
case MKNKPostDataEncodingTypeURL: {
[self.request setValue:
[NSString stringWithFormat:@"application/x-www-form-urlencoded; charset=%@", charset]
forHTTPHeaderField:@"Content-Type"];
}
break;
case MKNKPostDataEncodingTypeJSON: {
if([NSJSONSerialization class]) {
[self.request setValue:
[NSString stringWithFormat:@"application/json; charset=%@", charset]
forHTTPHeaderField:@"Content-Type"];
} else {
[self.request setValue:
[NSString stringWithFormat:@"application/x-www-form-urlencoded; charset=%@", charset]
forHTTPHeaderField:@"Content-Type"];
}
}
break;
case MKNKPostDataEncodingTypePlist: {
[self.request setValue:
[NSString stringWithFormat:@"application/x-plist; charset=%@", charset]
forHTTPHeaderField:@"Content-Type"];
}
default:
break;
}
}
self.state = MKNetworkOperationStateReady;
}
return self;
}
-(void) addHeaders:(NSDictionary*) headersDictionary {
[headersDictionary enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
[self.request addValue:obj forHTTPHeaderField:key];
}];
}
/*
Printing a MKNetworkOperation object is printed in curl syntax
*/
-(NSString*) description {
NSMutableString *displayString = [NSMutableString stringWithFormat:@"%@\nRequest\n-------\n%@",
[[NSDate date] descriptionWithLocale:[NSLocale currentLocale]],
[self curlCommandLineString]];
NSString *responseString = [self responseString];
if([responseString length] > 0) {
[displayString appendFormat:@"\n--------\nResponse\n--------\n%@\n", responseString];
}
return displayString;
}
-(NSString*) curlCommandLineString
{
__block NSMutableString *displayString = [NSMutableString stringWithFormat:@"curl -X %@", self.request.HTTPMethod];
if([self.filesToBePosted count] == 0 && [self.dataToBePosted count] == 0) {
[[self.request allHTTPHeaderFields] enumerateKeysAndObjectsUsingBlock:^(id key, id val, BOOL *stop)
{
[displayString appendFormat:@" -H \"%@: %@\"", key, val];
}];
}
[displayString appendFormat:@" \"%@\"", self.url];
if ([self.request.HTTPMethod isEqualToString:@"POST"] || [self.request.HTTPMethod isEqualToString:@"PUT"]) {
NSString *option = [self.filesToBePosted count] == 0 ? @"-d" : @"-F";
[self.fieldsToBePosted enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
[displayString appendFormat:@" %@ \"%@=%@\"", option, key, obj];
}];
[self.filesToBePosted enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
NSDictionary *thisFile = (NSDictionary*) obj;
[displayString appendFormat:@" -F \"%@=@%@;type=%@\"", [thisFile objectForKey:@"name"],
[thisFile objectForKey:@"filepath"], [thisFile objectForKey:@"mimetype"]];
}];
/* Not sure how to do this via curl
[self.dataToBePosted enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
NSDictionary *thisData = (NSDictionary*) obj;
[displayString appendFormat:@" --data-binary \"%@\"", [thisData objectForKey:@"data"]];
}];*/
}
return displayString;
}
-(void) addData:(NSData*) data forKey:(NSString*) key {
[self addData:data forKey:key mimeType:@"application/octet-stream"];
}
-(void) addData:(NSData*) data forKey:(NSString*) key mimeType:(NSString*) mimeType {
[self.request setHTTPMethod:@"POST"];
NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:
data, @"data",
key, @"name",
mimeType, @"mimetype",
nil];
[self.dataToBePosted addObject:dict];
}
-(void) addFile:(NSString*) filePath forKey:(NSString*) key {
[self addFile:filePath forKey:key mimeType:@"application/octet-stream"];
}
-(void) addFile:(NSString*) filePath forKey:(NSString*) key mimeType:(NSString*) mimeType {
[self.request setHTTPMethod:@"POST"];
NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:
filePath, @"filepath",
key, @"name",
mimeType, @"mimetype",
nil];
[self.filesToBePosted addObject:dict];
}
-(NSData*) bodyData {
if([self.filesToBePosted count] == 0 && [self.dataToBePosted count] == 0) {
return [[self encodedPostDataString] dataUsingEncoding:self.stringEncoding];
}
NSString *boundary = @"0xKhTmLbOuNdArY";
NSMutableData *body = [NSMutableData data];
__block NSUInteger postLength = 0;
[self.fieldsToBePosted enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
NSString *thisFieldString = [NSString stringWithFormat:
@"--%@\r\nContent-Disposition: form-data; name=\"%@\"\r\n\r\n%@\r\n",
boundary, [key urlEncodedString], [obj urlEncodedString]];
[body appendData:[thisFieldString dataUsingEncoding:[self stringEncoding]]];
[body appendData:[@"\r\n" dataUsingEncoding:[self stringEncoding]]];
}];
[self.filesToBePosted enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
NSDictionary *thisFile = (NSDictionary*) obj;
NSString *thisFieldString = [NSString stringWithFormat:
@"--%@\r\nContent-Disposition: form-data; name=\"%@\"; filename=\"%@\"\r\nContent-Type: %@\r\nContent-Transfer-Encoding: binary\r\n\r\n",
boundary,
[thisFile objectForKey:@"name"],
[[thisFile objectForKey:@"filepath"] lastPathComponent],
[thisFile objectForKey:@"mimetype"]];
[body appendData:[thisFieldString dataUsingEncoding:[self stringEncoding]]];
[body appendData: [NSData dataWithContentsOfFile:[thisFile objectForKey:@"filepath"]]];
[body appendData:[@"\r\n" dataUsingEncoding:[self stringEncoding]]];
}];
[self.dataToBePosted enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
NSDictionary *thisDataObject = (NSDictionary*) obj;
NSString *thisFieldString = [NSString stringWithFormat:
@"--%@\r\nContent-Disposition: form-data; name=\"%@\"; filename=\"%@\"\r\nContent-Type: %@\r\nContent-Transfer-Encoding: binary\r\n\r\n",
boundary,
[thisDataObject objectForKey:@"name"],
[thisDataObject objectForKey:@"name"],
[thisDataObject objectForKey:@"mimetype"]];
[body appendData:[thisFieldString dataUsingEncoding:[self stringEncoding]]];
[body appendData:[thisDataObject objectForKey:@"data"]];
[body appendData:[@"\r\n" dataUsingEncoding:[self stringEncoding]]];
}];
if (postLength >= 1)
[self.request setValue:[NSString stringWithFormat:@"%lu", postLength] forHTTPHeaderField:@"content-length"];
[body appendData: [[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:self.stringEncoding]];
NSString *charset = (__bridge NSString *)CFStringConvertEncodingToIANACharSetName(CFStringConvertNSStringEncodingToEncoding(self.stringEncoding));
if(([self.filesToBePosted count] > 0) || ([self.dataToBePosted count] > 0)) {
[self.request setValue:[NSString stringWithFormat:@"multipart/form-data; charset=%@; boundary=%@", charset, boundary]
forHTTPHeaderField:@"Content-Type"];
[self.request setValue:[NSString stringWithFormat:@"%d", [body length]] forHTTPHeaderField:@"Content-Length"];
}
return body;
}
-(void) setCacheHandler:(MKNKResponseBlock) cacheHandler {
self.cacheHandlingBlock = cacheHandler;
}
#pragma mark -
#pragma Main method
-(void) main {
@autoreleasepool {
[self start];
}
}
-(void) endBackgroundTask {
#if TARGET_OS_IPHONE
dispatch_async(dispatch_get_main_queue(), ^{
if (self.backgroundTaskId != UIBackgroundTaskInvalid) {
[[UIApplication sharedApplication] endBackgroundTask:self.backgroundTaskId];
self.backgroundTaskId = UIBackgroundTaskInvalid;
}
});
#endif
}
- (void) start
{
if(![NSThread isMainThread]){
[self performSelectorOnMainThread:@selector(start) withObject:nil waitUntilDone:NO];
return;
}
#if TARGET_OS_IPHONE
self.backgroundTaskId = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
dispatch_async(dispatch_get_main_queue(), ^{
if (self.backgroundTaskId != UIBackgroundTaskInvalid)
{
[[UIApplication sharedApplication] endBackgroundTask:self.backgroundTaskId];
self.backgroundTaskId = UIBackgroundTaskInvalid;
[self cancel];
}
});
}];
#endif
if(!self.isCancelled) {
if ([self.request.HTTPMethod isEqualToString:@"POST"] || [self.request.HTTPMethod isEqualToString:@"PUT"]) {
[self.request setHTTPBody:[self bodyData]];
}
self.connection = [[NSURLConnection alloc] initWithRequest:self.request
delegate:self
startImmediately:YES];
self.state = MKNetworkOperationStateExecuting;
}
else {
self.state = MKNetworkOperationStateFinished;
[self endBackgroundTask];
}
}
#pragma -
#pragma mark NSOperation stuff
- (BOOL)isConcurrent
{
return YES;
}
- (BOOL)isReady {
return (self.state == MKNetworkOperationStateReady);
}
- (BOOL)isFinished
{
return (self.state == MKNetworkOperationStateFinished);
}
- (BOOL)isExecuting {
return (self.state == MKNetworkOperationStateExecuting);
}
-(void) cancel {
if([self isFinished])
return;
[self.responseBlocks removeAllObjects];
self.responseBlocks = nil;
[self.errorBlocks removeAllObjects];
self.errorBlocks = nil;
[self.uploadProgressChangedHandlers removeAllObjects];
self.uploadProgressChangedHandlers = nil;
[self.downloadProgressChangedHandlers removeAllObjects];
self.downloadProgressChangedHandlers = nil;
[self.downloadStreams removeAllObjects];
self.downloadStreams = nil;
[self.connection cancel];
self.authHandler = nil;
self.mutableData = nil;
self.downloadedDataSize = 0;
self.isCancelled = YES;
self.cacheHandlingBlock = nil;
if(self.state == MKNetworkOperationStateExecuting)
self.state = MKNetworkOperationStateFinished; // This notifies the queue and removes the operation.
// if the operation is not removed, the spinner continues to spin, not a good UX
[self endBackgroundTask];
[super cancel];
}
#pragma mark -
#pragma mark NSURLConnection delegates
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
self.state = MKNetworkOperationStateFinished;
self.mutableData = nil;
self.downloadedDataSize = 0;
for(NSOutputStream *stream in self.downloadStreams)
[stream close];
[self operationFailedWithError:error];
[self endBackgroundTask];
}
- (void)connection:(NSURLConnection *)connection willSendRequestForAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
if ([challenge previousFailureCount] == 0) {
if (((challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodDefault) ||
(challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodHTTPBasic) ||
(challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodHTTPDigest) ||
(challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodNTLM)) &&
(self.username && self.password))
{
// for NTLM, we will assume user name to be of the form "domain\\username"
NSURLCredential *credential = [NSURLCredential credentialWithUser:self.username
password:self.password
persistence:self.credentialPersistence];
[challenge.sender useCredential:credential forAuthenticationChallenge:challenge];
}
else if ((challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodClientCertificate) && self.clientCertificate) {
NSData *certData = [[NSData alloc] initWithContentsOfFile:self.clientCertificate];
#warning method not implemented. Don't use client certicate authentication for now.
SecIdentityRef myIdentity; // ???
SecCertificateRef myCert = SecCertificateCreateWithData(NULL, (__bridge CFDataRef)certData);
SecCertificateRef certArray[1] = { myCert };
CFArrayRef myCerts = CFArrayCreate(NULL, (void *)certArray, 1, NULL);
CFRelease(myCert);
NSURLCredential *credential = [NSURLCredential credentialWithIdentity:myIdentity
certificates:(__bridge NSArray *)myCerts
persistence:NSURLCredentialPersistencePermanent];
CFRelease(myCerts);
[challenge.sender useCredential:credential forAuthenticationChallenge:challenge];
}
else if (challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust) {
#warning method not tested. proceed at your own risk
SecTrustRef serverTrust = [[challenge protectionSpace] serverTrust];
SecTrustResultType result;
SecTrustEvaluate(serverTrust, &result);
if(result == kSecTrustResultProceed) {
[challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge];
}
else if(result == kSecTrustResultConfirm) {
// ask user
BOOL userOkWithWrongCert = NO; // (ACTUALLY CHEAT., DON'T BE A F***ING BROWSER, USERS ALWAYS TAP YES WHICH IS RISKY)
if(userOkWithWrongCert) {
// Cert not trusted, but user is OK with that
[challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge];
} else {
// Cert not trusted, and user is not OK with that. Don't proceed
[challenge.sender continueWithoutCredentialForAuthenticationChallenge:challenge];
}
}
else {
// invalid or revoked certificate
[challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge];
//[challenge.sender continueWithoutCredentialForAuthenticationChallenge:challenge];
}
}
else if (self.authHandler) {
// forward the authentication to the view controller that created this operation
// If this happens for NSURLAuthenticationMethodHTMLForm, you have to
// do some shit work like showing a modal webview controller and close it after authentication.
// I HATE THIS.
self.authHandler(challenge);
}
else {
[[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge];
}
} else {
// apple proposes to cancel authentication, which results in NSURLErrorDomain error -1012, but we prefer to trigger a 401
// [[challenge sender] cancelAuthenticationChallenge:challenge];
[[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge];
}
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSUInteger size = [self.response expectedContentLength] < 0 ? 0 : [self.response expectedContentLength];
self.response = (NSHTTPURLResponse*) response;
// dont' save data if the operation was created to download directly to a stream.
if([self.downloadStreams count] == 0)
self.mutableData = [NSMutableData dataWithCapacity:size];
else
self.mutableData = nil;
for(NSOutputStream *stream in self.downloadStreams)
[stream open];
NSDictionary *httpHeaders = [self.response allHeaderFields];
// if you attach a stream to the operation, MKNetworkKit will not cache the response.
// Streams are usually "big data chunks" that doesn't need caching anyways.
if([self.request.HTTPMethod isEqualToString:@"GET"] && [self.downloadStreams count] == 0) {
// We have all this complicated cache handling since NSURLRequestReloadRevalidatingCacheData is not implemented
// do cache processing only if the request is a "GET" method
NSString *lastModified = [httpHeaders objectForKey:@"Last-Modified"];
NSString *eTag = [httpHeaders objectForKey:@"ETag"];
NSString *expiresOn = [httpHeaders objectForKey:@"Expires"];
NSString *contentType = [httpHeaders objectForKey:@"Content-Type"];
// if contentType is image,
NSDate *expiresOnDate = nil;
if([contentType rangeOfString:@"image"].location != NSNotFound) {
// For images let's assume a expiry date of 7 days if there is no eTag or Last Modified.
if(!eTag && !lastModified)
expiresOnDate = [[NSDate date] dateByAddingTimeInterval:kMKNetworkKitDefaultImageCacheDuration];
else
expiresOnDate = [[NSDate date] dateByAddingTimeInterval:kMKNetworkKitDefaultImageHeadRequestDuration];
}
NSString *cacheControl = [httpHeaders objectForKey:@"Cache-Control"]; // max-age, must-revalidate, no-cache
NSArray *cacheControlEntities = [cacheControl componentsSeparatedByString:@","];
for(NSString *substring in cacheControlEntities) {
if([substring rangeOfString:@"max-age"].location != NSNotFound) {
// do some processing to calculate expiresOn
NSString *maxAge = nil;