src/net/http_client_mac.mm - mozc - Git at Google

 // Copyright 2010-2014, 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.

 #include <Cocoa/Cocoa.h>

 #include "base/logging.h"
 #include "net/http_client_common.h"
 #include "net/http_client_mac.h"

 @interface HTTPStream : NSObject{
 @private
   const NSURLRequest  *request_;
   string              *output_string_;
   size_t              max_data_size_;
   size_t              output_size_;
   bool                include_header_;
   int                 status_code_;
   bool                finished_;
   bool                error_flag_;
 }
 @end
 @implementation HTTPStream : NSObject

 - (HTTPStream *)initWithRequest:(const NSURLRequest *)request
                    outputString:(string *)output_string
                     maxDataSize:(size_t)max_data_size
                  include_header:(bool)include_header {
   self = [super init];
   if (self == nil) {
     return nil;
   }
   if (NULL != output_string_) {
     output_string_->clear();
   }
   request_ = request;
   output_string_ = output_string;
   max_data_size_ = max_data_size;
   output_size_ = 0;
   include_header_ = include_header;

   finished_ = false;
   error_flag_ = false;

   return self;
 }

 // Append data to output
 - (int)append:(const void *)buf size:(size_t)size {
   if (output_size_ + size >= max_data_size_) {
     size = (max_data_size_ - output_size_);
     LOG(WARNING) << "too long data max_data_size=" << max_data_size_;
   }

   if (output_string_ != NULL) {
     VLOG(2) << "Recived: " << size << " bytes to std::string";
     output_string_->append((const char*)buf, size);
   }

   output_size_ += size;
   return size;
 }

 // Create HTTP response header data from NSURLResponse
 // Because NSHTTPURLResponse doesn't provide access to raw header data,
 // the return value is not the same data as the server respond.
 - (NSData *)dataOfResponseHeader:(NSURLResponse *)response {
   NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
   NSDictionary *dictionary = [httpResponse allHeaderFields];
   NSMutableData *headerData = [NSMutableData dataWithCapacity:1024];

   // TODO(horo): This HTTP status line is fake.
   //             NSHTTPURLResponse doesn't provide access to raw header data.
   NSString *statusLine = [NSString stringWithFormat:@"HTTP/1.1 %d OK\r\n",
                            status_code_];
   [headerData appendData:[statusLine dataUsingEncoding:NSUTF8StringEncoding]];

   // Enumrate header fields
   NSArray *keys = [dictionary allKeys];
   for (int i = 0; i < [keys count]; ++i) {
     NSString *line = [NSString stringWithFormat:@"%@: %@\r\n",
                        [keys objectAtIndex:i],
                        [dictionary objectForKey:[keys objectAtIndex:i]]];
     [headerData appendData:[line dataUsingEncoding:NSUTF8StringEncoding]];
   }
   [headerData appendBytes:"\r\n" length:2];
   return headerData;
 }

 // connection:didReceiveResponse:
 //  Sent when the connection has received sufficient data
 //  to construct the URL response for its request.
 - (void)connection:(NSURLConnection *)connection
   didReceiveResponse:(NSURLResponse *)response {
   NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
   status_code_ = [httpResponse statusCode];
   if (include_header_) {
     NSData *headerData = [self dataOfResponseHeader:response];
     int size = [headerData length];
     if([self append:[headerData bytes] size:size] != size) {
       [connection cancel];
       finished_ = true;
       error_flag_ = true;
     }
   }
 }

 // connectionDidFinishLoading:
 //  Sent when a connection has finished loading successfully.
 - (void)connectionDidFinishLoading:(NSURLConnection *)connection {
   finished_ = true;
 }

 // connection:didFailWithError:
 //   Sent when a connection fails to load its request successfully.
 - (void)connection:(NSURLConnection *)connection
   didFailWithError:(NSError *)error {
   LOG(ERROR) << "HTTPStream failed with error: "
              << [[[request_ URL] absoluteString] UTF8String] << " ["
              << [[error localizedDescription] UTF8String] << "]";
   finished_ = true;
   error_flag_ = true;
 }

 // connection:didReceiveData:
 //  Sent as a connection loads data incrementally.
 - (void)connection:(NSURLConnection *)connection
     didReceiveData:(NSData *)data {
   const char *buf = (const char *)[data bytes];
   int size = [data length];
   if (size != [self append:buf size:size]) {
     [connection cancel];
     error_flag_ = true;
     finished_ = true;
   }
 }

 // connection:willSendRequest:redirectResponse:
 //  Sent when the connection determines that it must change URLs
 //  in order to continue loading a request.
 - (NSURLRequest *)connection:(NSURLConnection *)connection
              willSendRequest:(NSURLRequest *)request
             redirectResponse:(NSURLResponse *)redirectResponse {
   if (!redirectResponse) {
     return request;
   }
   if (!include_header_) {
     return request;
   }
   NSData *headerData = [self dataOfResponseHeader:redirectResponse];
   int size = [headerData length];
   if([self append:[headerData bytes] size:size] != size) {
     [connection cancel];
     finished_ = true;
     error_flag_ = true;
   }
   return request;
 }

 // This method is called in a new thread which is created by "start" method.
 - (void)sendRequestThread:(NSURLRequest *)request {
   NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
   [[[NSURLConnection alloc] initWithRequest:request delegate:self] autorelease];

   // wait aun run runloop until HTTP connection will be finished
   while (!finished_) {
     [[NSRunLoop currentRunLoop]
       runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.01f]];
   }
   [pool drain];
 }

 // Start HTTP session and return result.
 - (bool)start {
   NSThread *thread = [[NSThread alloc] initWithTarget:self
                         selector:@selector(sendRequestThread:)
                         object:request_];
   [thread start];

   // wait until thread finishes
   while (NO == [thread isFinished]) {
     [NSThread sleepForTimeInterval:0.01f];
   }
   [thread cancel];
   [thread release];

   return (status_code_ == mozc::kOKResponseCode) && (!error_flag_);
 }
 @end

 namespace mozc {
 bool MacHTTPRequestHandler::Request(HTTPMethodType type,
                                     const string &url,
                                     const char *post_data,
                                     size_t post_size,
                                     const HTTPClient::Option &option,
                                     string *output_string) {
   NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
   NSString *urlStr = [NSString stringWithUTF8String:url.c_str()];

   NSMutableURLRequest *request;
   request = [[[NSMutableURLRequest alloc] init] autorelease];
   [request setHTTPShouldHandleCookies:NO];
   [request setURL:[NSURL URLWithString:urlStr]];
   [request setValue:[NSString stringWithUTF8String:kUserAgent]
     forHTTPHeaderField: @"User-Agent"];
   [request setCachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData];
   [request setTimeoutInterval:option.timeout];

   // The default HTTP method is “GET”.
   if (type == HTTP_POST) {
     [request setHTTPMethod:@"POST"];
     if (post_data != NULL) {
       // The framework will automatically add the content type and
       // content length, but we put it explicitly just in case.
       NSString *length = [NSString stringWithFormat:@"%zd", post_size];
       [request setValue:length forHTTPHeaderField:@"Content-Length"];
       [request setValue:@"application/x-www-form-urlencoded"
       forHTTPHeaderField: @"Content-Type"];

       [request setHTTPBody:[NSData dataWithBytes:post_data length:post_size]];
     }
   } else if (type == HTTP_HEAD) {
     [request setHTTPMethod:@"HEAD"];
   }

   // Add http header fields
   for (size_t i = 0; i < option.headers.size(); ++i) {
     const string::size_type pos = option.headers[i].find(": ");
     if (pos != string::npos) {
       const string key = option.headers[i].substr(0, pos);
       const string value = option.headers[i].substr(pos + 2);
       [request setValue:[NSString stringWithUTF8String:value.c_str()]
         forHTTPHeaderField:[NSString stringWithUTF8String:key.c_str()]];
     }
   }

   HTTPStream *stream = [[[HTTPStream alloc] initWithRequest:request
                           outputString:output_string
                           maxDataSize:option.max_data_size
                           include_header:option.include_header]
                         autorelease];
   const bool ret = [stream start];

   [pool drain];

   return ret;
 }
 }  // namespace mozc
	// Copyright 2010-2014, 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.

	#include <Cocoa/Cocoa.h>

	#include "base/logging.h"
	#include "net/http_client_common.h"
	#include "net/http_client_mac.h"

	@interface HTTPStream : NSObject{
	@private
	const NSURLRequest *request_;
	string *output_string_;
	size_t max_data_size_;
	size_t output_size_;
	bool include_header_;
	int status_code_;
	bool finished_;
	bool error_flag_;
	}
	@end
	@implementation HTTPStream : NSObject

	- (HTTPStream )initWithRequest:(const NSURLRequest )request
	outputString:(string *)output_string
	maxDataSize:(size_t)max_data_size
	include_header:(bool)include_header {
	self = [super init];
	if (self == nil) {
	return nil;
	}
	if (NULL != output_string_) {
	output_string_->clear();
	}
	request_ = request;
	output_string_ = output_string;
	max_data_size_ = max_data_size;
	output_size_ = 0;
	include_header_ = include_header;

	finished_ = false;
	error_flag_ = false;

	return self;
	}

	// Append data to output
	- (int)append:(const void *)buf size:(size_t)size {
	if (output_size_ + size >= max_data_size_) {
	size = (max_data_size_ - output_size_);
	LOG(WARNING) << "too long data max_data_size=" << max_data_size_;
	}

	if (output_string_ != NULL) {
	VLOG(2) << "Recived: " << size << " bytes to std::string";
	output_string_->append((const char*)buf, size);
	}

	output_size_ += size;
	return size;
	}

	// Create HTTP response header data from NSURLResponse
	// Because NSHTTPURLResponse doesn't provide access to raw header data,
	// the return value is not the same data as the server respond.
	- (NSData )dataOfResponseHeader:(NSURLResponse )response {
	NSHTTPURLResponse httpResponse = (NSHTTPURLResponse )response;
	NSDictionary *dictionary = [httpResponse allHeaderFields];
	NSMutableData *headerData = [NSMutableData dataWithCapacity:1024];

	// TODO(horo): This HTTP status line is fake.
	// NSHTTPURLResponse doesn't provide access to raw header data.
	NSString *statusLine = [NSString stringWithFormat:@"HTTP/1.1 %d OK\r\n",
	status_code_];
	[headerData appendData:[statusLine dataUsingEncoding:NSUTF8StringEncoding]];

	// Enumrate header fields
	NSArray *keys = [dictionary allKeys];
	for (int i = 0; i < [keys count]; ++i) {
	NSString *line = [NSString stringWithFormat:@"%@: %@\r\n",
	[keys objectAtIndex:i],
	[dictionary objectForKey:[keys objectAtIndex:i]]];
	[headerData appendData:[line dataUsingEncoding:NSUTF8StringEncoding]];
	}
	[headerData appendBytes:"\r\n" length:2];
	return headerData;
	}

	// connection:didReceiveResponse:
	// Sent when the connection has received sufficient data
	// to construct the URL response for its request.
	- (void)connection:(NSURLConnection *)connection
	didReceiveResponse:(NSURLResponse *)response {
	NSHTTPURLResponse httpResponse = (NSHTTPURLResponse )response;
	status_code_ = [httpResponse statusCode];
	if (include_header_) {
	NSData *headerData = [self dataOfResponseHeader:response];
	int size = [headerData length];
	if([self append:[headerData bytes] size:size] != size) {
	[connection cancel];
	finished_ = true;
	error_flag_ = true;
	}
	}
	}

	// connectionDidFinishLoading:
	// Sent when a connection has finished loading successfully.
	- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
	finished_ = true;
	}

	// connection:didFailWithError:
	// Sent when a connection fails to load its request successfully.
	- (void)connection:(NSURLConnection *)connection
	didFailWithError:(NSError *)error {
	LOG(ERROR) << "HTTPStream failed with error: "
	<< [[[request_ URL] absoluteString] UTF8String] << " ["
	<< [[error localizedDescription] UTF8String] << "]";
	finished_ = true;
	error_flag_ = true;
	}

	// connection:didReceiveData:
	// Sent as a connection loads data incrementally.
	- (void)connection:(NSURLConnection *)connection
	didReceiveData:(NSData *)data {
	const char buf = (const char )[data bytes];
	int size = [data length];
	if (size != [self append:buf size:size]) {
	[connection cancel];
	error_flag_ = true;
	finished_ = true;
	}
	}

	// connection:willSendRequest:redirectResponse:
	// Sent when the connection determines that it must change URLs
	// in order to continue loading a request.
	- (NSURLRequest )connection:(NSURLConnection )connection
	willSendRequest:(NSURLRequest *)request
	redirectResponse:(NSURLResponse *)redirectResponse {
	if (!redirectResponse) {
	return request;
	}
	if (!include_header_) {
	return request;
	}
	NSData *headerData = [self dataOfResponseHeader:redirectResponse];
	int size = [headerData length];
	if([self append:[headerData bytes] size:size] != size) {
	[connection cancel];
	finished_ = true;
	error_flag_ = true;
	}
	return request;
	}

	// This method is called in a new thread which is created by "start" method.
	- (void)sendRequestThread:(NSURLRequest *)request {
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
	[[[NSURLConnection alloc] initWithRequest:request delegate:self] autorelease];

	// wait aun run runloop until HTTP connection will be finished
	while (!finished_) {
	[[NSRunLoop currentRunLoop]
	runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.01f]];
	}
	[pool drain];
	}

	// Start HTTP session and return result.
	- (bool)start {
	NSThread *thread = [[NSThread alloc] initWithTarget:self
	selector:@selector(sendRequestThread:)
	object:request_];
	[thread start];

	// wait until thread finishes
	while (NO == [thread isFinished]) {
	[NSThread sleepForTimeInterval:0.01f];
	}
	[thread cancel];
	[thread release];

	return (status_code_ == mozc::kOKResponseCode) && (!error_flag_);
	}
	@end

	namespace mozc {
	bool MacHTTPRequestHandler::Request(HTTPMethodType type,
	const string &url,
	const char *post_data,
	size_t post_size,
	const HTTPClient::Option &option,
	string *output_string) {
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
	NSString *urlStr = [NSString stringWithUTF8String:url.c_str()];

	NSMutableURLRequest *request;
	request = [[[NSMutableURLRequest alloc] init] autorelease];
	[request setHTTPShouldHandleCookies:NO];
	[request setURL:[NSURL URLWithString:urlStr]];
	[request setValue:[NSString stringWithUTF8String:kUserAgent]
	forHTTPHeaderField: @"User-Agent"];
	[request setCachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData];
	[request setTimeoutInterval:option.timeout];

	// The default HTTP method is “GET”.
	if (type == HTTP_POST) {
	[request setHTTPMethod:@"POST"];
	if (post_data != NULL) {
	// The framework will automatically add the content type and
	// content length, but we put it explicitly just in case.
	NSString *length = [NSString stringWithFormat:@"%zd", post_size];
	[request setValue:length forHTTPHeaderField:@"Content-Length"];
	[request setValue:@"application/x-www-form-urlencoded"
	forHTTPHeaderField: @"Content-Type"];

	[request setHTTPBody:[NSData dataWithBytes:post_data length:post_size]];
	}
	} else if (type == HTTP_HEAD) {
	[request setHTTPMethod:@"HEAD"];
	}

	// Add http header fields
	for (size_t i = 0; i < option.headers.size(); ++i) {
	const string::size_type pos = option.headers[i].find(": ");
	if (pos != string::npos) {
	const string key = option.headers[i].substr(0, pos);
	const string value = option.headers[i].substr(pos + 2);
	[request setValue:[NSString stringWithUTF8String:value.c_str()]
	forHTTPHeaderField:[NSString stringWithUTF8String:key.c_str()]];
	}
	}

	HTTPStream *stream = [[[HTTPStream alloc] initWithRequest:request
	outputString:output_string
	maxDataSize:option.max_data_size
	include_header:option.include_header]
	autorelease];
	const bool ret = [stream start];

	[pool drain];

	return ret;
	}
	} // namespace mozc