src/common/mac/HTTPMultipartUpload.m - breakpad - Git at Google

 // Copyright (c) 2006, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
 // in the documentation and/or other materials provided with the
 // distribution.
 //     * Neither the name of Google Inc. nor the names of its
 // contributors may be used to endorse or promote products derived from
 // this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 #import "HTTPMultipartUpload.h"
 #import "GTMDefines.h"

 // As -[NSString stringByAddingPercentEscapesUsingEncoding:] has been
 // deprecated with iOS 9.0 / OS X 10.11 SDKs, this function re-implements it
 // using -[NSString stringByAddingPercentEncodingWithAllowedCharacters:] when
 // using those SDKs.
 static NSString *PercentEncodeNSString(NSString *key) {
 #if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_9_0) &&     \
      __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_9_0) ||                      \
     (defined(MAC_OS_X_VERSION_MIN_REQUIRED) &&                                 \
      defined(MAC_OS_X_VERSION_10_11) &&                                        \
      MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_11)
   return [key stringByAddingPercentEncodingWithAllowedCharacters:
                   [NSCharacterSet URLQueryAllowedCharacterSet]];
 #else
   return [key stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
 #endif
 }

 // As -[NSURLConnection sendSynchronousRequest:returningResponse:error:] has
 // been deprecated with iOS 9.0 / OS X 10.11 SDKs, this function re-implements
 // it using -[NSURLSession dataTaskWithRequest:completionHandler:] which is
 // available on iOS 7+.
 static NSData *SendSynchronousNSURLRequest(NSURLRequest *req,
                                            NSURLResponse **out_response,
                                            NSError **out_error) {
 #if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_7_0) &&     \
      __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_7_0) ||                      \
     (defined(MAC_OS_X_VERSION_MIN_REQUIRED) &&                                 \
      defined(MAC_OS_X_VERSION_10_11) &&                                        \
      MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_11)
   __block NSData* result = nil;
   __block NSError* error = nil;
   __block NSURLResponse* response = nil;
   dispatch_semaphore_t wait_semaphone = dispatch_semaphore_create(0);
   [[[NSURLSession sharedSession]
       dataTaskWithRequest:req
         completionHandler:^(NSData *data,
                             NSURLResponse *resp,
                             NSError *err) {
             if (out_error)
               error = [err retain];
             if (out_response)
               response = [resp retain];
             if (err == nil)
               result = [data retain];
             dispatch_semaphore_signal(wait_semaphone);
   }] resume];
   dispatch_semaphore_wait(wait_semaphone, DISPATCH_TIME_FOREVER);
   dispatch_release(wait_semaphone);
   if (out_error)
     *out_error = [error autorelease];
   if (out_response)
     *out_response = [response autorelease];
   return [result autorelease];
 #else
   return [NSURLConnection sendSynchronousRequest:req
                                returningResponse:out_response
                                            error:out_error];
 #endif
 }
 @interface HTTPMultipartUpload(PrivateMethods)
 - (NSString *)multipartBoundary;
 // Each of the following methods will append the starting multipart boundary,
 // but not the ending one.
 - (NSData *)formDataForKey:(NSString *)key value:(NSString *)value;
 - (NSData *)formDataForFileContents:(NSData *)contents name:(NSString *)name;
 - (NSData *)formDataForFile:(NSString *)file name:(NSString *)name;
 @end

 @implementation HTTPMultipartUpload
 //=============================================================================
 #pragma mark -
 #pragma mark || Private ||
 //=============================================================================
 - (NSString *)multipartBoundary {
   // The boundary has 27 '-' characters followed by 16 hex digits
   return [NSString stringWithFormat:@"---------------------------%08X%08X",
     rand(), rand()];
 }

 //=============================================================================
 - (NSData *)formDataForKey:(NSString *)key value:(NSString *)value {
   NSString *escaped = PercentEncodeNSString(key);
   NSString *fmt =
     @"--%@\r\nContent-Disposition: form-data; name=\"%@\"\r\n\r\n%@\r\n";
   NSString *form = [NSString stringWithFormat:fmt, boundary_, escaped, value];

   return [form dataUsingEncoding:NSUTF8StringEncoding];
 }

 //=============================================================================
 - (NSData *)formDataForFileContents:(NSData *)contents name:(NSString *)name {
   NSMutableData *data = [NSMutableData data];
   NSString *escaped = PercentEncodeNSString(name);
   NSString *fmt = @"--%@\r\nContent-Disposition: form-data; name=\"%@\"; "
     "filename=\"minidump.dmp\"\r\nContent-Type: application/octet-stream\r\n\r\n";
   NSString *pre = [NSString stringWithFormat:fmt, boundary_, escaped];

   [data appendData:[pre dataUsingEncoding:NSUTF8StringEncoding]];
   [data appendData:contents];

   return data;
 }

 //=============================================================================
 - (NSData *)formDataForFile:(NSString *)file name:(NSString *)name {
   NSData *contents = [NSData dataWithContentsOfFile:file];

   return [self formDataForFileContents:contents name:name];
 }

 //=============================================================================
 #pragma mark -
 #pragma mark || Public ||
 //=============================================================================
 - (id)initWithURL:(NSURL *)url {
   if ((self = [super init])) {
     url_ = [url copy];
     boundary_ = [[self multipartBoundary] retain];
     files_ = [[NSMutableDictionary alloc] init];
   }

   return self;
 }

 //=============================================================================
 - (void)dealloc {
   [url_ release];
   [parameters_ release];
   [files_ release];
   [boundary_ release];
   [response_ release];

   [super dealloc];
 }

 //=============================================================================
 - (NSURL *)URL {
   return url_;
 }

 //=============================================================================
 - (void)setParameters:(NSDictionary *)parameters {
   if (parameters != parameters_) {
     [parameters_ release];
     parameters_ = [parameters copy];
   }
 }

 //=============================================================================
 - (NSDictionary *)parameters {
   return parameters_;
 }

 //=============================================================================
 - (void)addFileAtPath:(NSString *)path name:(NSString *)name {
   [files_ setObject:path forKey:name];
 }

 //=============================================================================
 - (void)addFileContents:(NSData *)data name:(NSString *)name {
   [files_ setObject:data forKey:name];
 }

 //=============================================================================
 - (NSDictionary *)files {
   return files_;
 }

 //=============================================================================
 - (NSData *)send:(NSError **)error {
   NSMutableURLRequest *req =
     [[NSMutableURLRequest alloc]
           initWithURL:url_ cachePolicy:NSURLRequestUseProtocolCachePolicy
       timeoutInterval:10.0 ];

   NSMutableData *postBody = [NSMutableData data];

   [req setValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@",
     boundary_] forHTTPHeaderField:@"Content-type"];

   // Add any parameters to the message
   NSArray *parameterKeys = [parameters_ allKeys];
   NSString *key;

   NSInteger count = [parameterKeys count];
   for (NSInteger i = 0; i < count; ++i) {
     key = [parameterKeys objectAtIndex:i];
     [postBody appendData:[self formDataForKey:key
                                         value:[parameters_ objectForKey:key]]];
   }

   // Add any files to the message
   NSArray *fileNames = [files_ allKeys];
   for (NSString *name in fileNames) {
     id fileOrData = [files_ objectForKey:name];
     NSData *fileData;

     // The object can be either the path to a file (NSString) or the contents
     // of the file (NSData).
     if ([fileOrData isKindOfClass:[NSData class]])
       fileData = [self formDataForFileContents:fileOrData name:name];
     else
       fileData = [self formDataForFile:fileOrData name:name];

     [postBody appendData:fileData];
   }

   NSString *epilogue = [NSString stringWithFormat:@"\r\n--%@--\r\n", boundary_];
   [postBody appendData:[epilogue dataUsingEncoding:NSUTF8StringEncoding]];

   [req setHTTPBody:postBody];
   [req setHTTPMethod:@"POST"];

   [response_ release];
   response_ = nil;

   NSData *data = nil;
   if ([[req URL] isFileURL]) {
     [[req HTTPBody] writeToURL:[req URL] options:0 error:error];
   } else {
     NSURLResponse *response = nil;
     data = SendSynchronousNSURLRequest(req, &response, error);
     response_ = (NSHTTPURLResponse *)[response retain];
   }
   [req release];

   return data;
 }

 //=============================================================================
 - (NSHTTPURLResponse *)response {
   return response_;
 }

 @end
	// Copyright (c) 2006, Google Inc.
	// All rights reserved.
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are
	// met:
	//
	// * Redistributions of source code must retain the above copyright
	// notice, this list of conditions and the following disclaimer.
	// * Redistributions in binary form must reproduce the above
	// copyright notice, this list of conditions and the following disclaimer
	// in the documentation and/or other materials provided with the
	// distribution.
	// * Neither the name of Google Inc. nor the names of its
	// contributors may be used to endorse or promote products derived from
	// this software without specific prior written permission.
	//
	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	#import "HTTPMultipartUpload.h"
	#import "GTMDefines.h"

	// As -[NSString stringByAddingPercentEscapesUsingEncoding:] has been
	// deprecated with iOS 9.0 / OS X 10.11 SDKs, this function re-implements it
	// using -[NSString stringByAddingPercentEncodingWithAllowedCharacters:] when
	// using those SDKs.
	static NSString PercentEncodeNSString(NSString key) {
	#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_9_0) && \
	__IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_9_0) \|\| \
	(defined(MAC_OS_X_VERSION_MIN_REQUIRED) && \
	defined(MAC_OS_X_VERSION_10_11) && \
	MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_11)
	return [key stringByAddingPercentEncodingWithAllowedCharacters:
	[NSCharacterSet URLQueryAllowedCharacterSet]];
	#else
	return [key stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
	#endif
	}

	// As -[NSURLConnection sendSynchronousRequest:returningResponse:error:] has
	// been deprecated with iOS 9.0 / OS X 10.11 SDKs, this function re-implements
	// it using -[NSURLSession dataTaskWithRequest:completionHandler:] which is
	// available on iOS 7+.
	static NSData SendSynchronousNSURLRequest(NSURLRequest req,
	NSURLResponse **out_response,
	NSError **out_error) {
	#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_7_0) && \
	__IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_7_0) \|\| \
	(defined(MAC_OS_X_VERSION_MIN_REQUIRED) && \
	defined(MAC_OS_X_VERSION_10_11) && \
	MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_11)
	__block NSData* result = nil;
	__block NSError* error = nil;
	__block NSURLResponse* response = nil;
	dispatch_semaphore_t wait_semaphone = dispatch_semaphore_create(0);
	[[[NSURLSession sharedSession]
	dataTaskWithRequest:req
	completionHandler:^(NSData *data,
	NSURLResponse *resp,
	NSError *err) {
	if (out_error)
	error = [err retain];
	if (out_response)
	response = [resp retain];
	if (err == nil)
	result = [data retain];
	dispatch_semaphore_signal(wait_semaphone);
	}] resume];
	dispatch_semaphore_wait(wait_semaphone, DISPATCH_TIME_FOREVER);
	dispatch_release(wait_semaphone);
	if (out_error)
	*out_error = [error autorelease];
	if (out_response)
	*out_response = [response autorelease];
	return [result autorelease];
	#else
	return [NSURLConnection sendSynchronousRequest:req
	returningResponse:out_response
	error:out_error];
	#endif
	}
	@interface HTTPMultipartUpload(PrivateMethods)
	- (NSString *)multipartBoundary;
	// Each of the following methods will append the starting multipart boundary,
	// but not the ending one.
	- (NSData )formDataForKey:(NSString )key value:(NSString *)value;
	- (NSData )formDataForFileContents:(NSData )contents name:(NSString *)name;
	- (NSData )formDataForFile:(NSString )file name:(NSString *)name;
	@end

	@implementation HTTPMultipartUpload
	//=============================================================================
	#pragma mark -
	#pragma mark \|\| Private \|\|
	//=============================================================================
	- (NSString *)multipartBoundary {
	// The boundary has 27 '-' characters followed by 16 hex digits
	return [NSString stringWithFormat:@"---------------------------%08X%08X",
	rand(), rand()];
	}

	//=============================================================================
	- (NSData )formDataForKey:(NSString )key value:(NSString *)value {
	NSString *escaped = PercentEncodeNSString(key);
	NSString *fmt =
	@"--%@\r\nContent-Disposition: form-data; name=\"%@\"\r\n\r\n%@\r\n";
	NSString *form = [NSString stringWithFormat:fmt, boundary_, escaped, value];

	return [form dataUsingEncoding:NSUTF8StringEncoding];
	}

	//=============================================================================
	- (NSData )formDataForFileContents:(NSData )contents name:(NSString *)name {
	NSMutableData *data = [NSMutableData data];
	NSString *escaped = PercentEncodeNSString(name);
	NSString *fmt = @"--%@\r\nContent-Disposition: form-data; name=\"%@\"; "
	"filename=\"minidump.dmp\"\r\nContent-Type: application/octet-stream\r\n\r\n";
	NSString *pre = [NSString stringWithFormat:fmt, boundary_, escaped];

	[data appendData:[pre dataUsingEncoding:NSUTF8StringEncoding]];
	[data appendData:contents];

	return data;
	}

	//=============================================================================
	- (NSData )formDataForFile:(NSString )file name:(NSString *)name {
	NSData *contents = [NSData dataWithContentsOfFile:file];

	return [self formDataForFileContents:contents name:name];
	}

	//=============================================================================
	#pragma mark -
	#pragma mark \|\| Public \|\|
	//=============================================================================
	- (id)initWithURL:(NSURL *)url {
	if ((self = [super init])) {
	url_ = [url copy];
	boundary_ = [[self multipartBoundary] retain];
	files_ = [[NSMutableDictionary alloc] init];
	}

	return self;
	}

	//=============================================================================
	- (void)dealloc {
	[url_ release];
	[parameters_ release];
	[files_ release];
	[boundary_ release];
	[response_ release];

	[super dealloc];
	}

	//=============================================================================
	- (NSURL *)URL {
	return url_;
	}

	//=============================================================================
	- (void)setParameters:(NSDictionary *)parameters {
	if (parameters != parameters_) {
	[parameters_ release];
	parameters_ = [parameters copy];
	}
	}

	//=============================================================================
	- (NSDictionary *)parameters {
	return parameters_;
	}

	//=============================================================================
	- (void)addFileAtPath:(NSString )path name:(NSString )name {
	[files_ setObject:path forKey:name];
	}

	//=============================================================================
	- (void)addFileContents:(NSData )data name:(NSString )name {
	[files_ setObject:data forKey:name];
	}

	//=============================================================================
	- (NSDictionary *)files {
	return files_;
	}

	//=============================================================================
	- (NSData )send:(NSError *)error {
	NSMutableURLRequest *req =
	[[NSMutableURLRequest alloc]
	initWithURL:url_ cachePolicy:NSURLRequestUseProtocolCachePolicy
	timeoutInterval:10.0 ];

	NSMutableData *postBody = [NSMutableData data];

	[req setValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@",
	boundary_] forHTTPHeaderField:@"Content-type"];

	// Add any parameters to the message
	NSArray *parameterKeys = [parameters_ allKeys];
	NSString *key;

	NSInteger count = [parameterKeys count];
	for (NSInteger i = 0; i < count; ++i) {
	key = [parameterKeys objectAtIndex:i];
	[postBody appendData:[self formDataForKey:key
	value:[parameters_ objectForKey:key]]];
	}

	// Add any files to the message
	NSArray *fileNames = [files_ allKeys];
	for (NSString *name in fileNames) {
	id fileOrData = [files_ objectForKey:name];
	NSData *fileData;

	// The object can be either the path to a file (NSString) or the contents
	// of the file (NSData).
	if ([fileOrData isKindOfClass:[NSData class]])
	fileData = [self formDataForFileContents:fileOrData name:name];
	else
	fileData = [self formDataForFile:fileOrData name:name];

	[postBody appendData:fileData];
	}

	NSString *epilogue = [NSString stringWithFormat:@"\r\n--%@--\r\n", boundary_];
	[postBody appendData:[epilogue dataUsingEncoding:NSUTF8StringEncoding]];

	[req setHTTPBody:postBody];
	[req setHTTPMethod:@"POST"];

	[response_ release];
	response_ = nil;

	NSData *data = nil;
	if ([[req URL] isFileURL]) {
	[[req HTTPBody] writeToURL:[req URL] options:0 error:error];
	} else {
	NSURLResponse *response = nil;
	data = SendSynchronousNSURLRequest(req, &response, error);
	response_ = (NSHTTPURLResponse *)[response retain];
	}
	[req release];

	return data;
	}

	//=============================================================================
	- (NSHTTPURLResponse *)response {
	return response_;
	}

	@end