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MPWHTTPServer.m
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//
// MPWHTTPServer.m
// microhttp
//
// Created by Marcel Weiher on 9/6/10.
// Copyright 2010 Marcel Weiher. All rights reserved.
//
#import "MPWHTTPServer.h"
#import <MPWFoundation/MPWFoundation.h>
#import "MPWPOSTProcessor.h"
#include <microhttpd.h>
#include <sys/types.h>
#include <sys/socket.h>
#ifdef GS_API_LATEST
#include <linux/un.h>
#endif
@implementation MPWHTTPServer
scalarAccessor( struct MHD_Daemon *, _httpd, setHttpd )
intAccessor( port, setPort )
idAccessor( _delegate, setDelegate )
objectAccessor(NSString*,email, setEmail )
objectAccessor(NSString*,bonjourName, setBonjourName )
objectAccessor(NSArray*, types, setTypes )
objectAccessor(NSArray*, netServices, setNetServices )
intAccessor( threadPoolSize, setThreadPoolSize )
-(void)setType:(NSString *)newType
{
[self setTypes:[NSArray arrayWithObject:newType]];
}
- (void)netServiceDidPublish:(NSNetService *)ns
{
// Override me to do something here...
NSLog(@"Bonjour Service Published: domain(%@) type(%@) name(%@) port: %ld", [ns domain], [ns type], [ns name],(long)[ns port]);
}
/**
* Called if our bonjour service failed to publish itself.
* This method does nothing but output a log message telling us about the published service.
**/
- (void)netService:(NSNetService *)ns didNotPublish:(NSDictionary *)errorDict
{
// Override me to do something here...
NSLog(@"Failed to Publish Service: domain(%@) type(%@) name(%@)", [ns domain], [ns type], [ns name]);
NSLog(@"Error Dict: %@", errorDict);
}
-(NSString*)bonjourDomain
{
return @"local.";
}
-(NSString*)defaultBonjourName
{
return @"";
}
-(void)startBonjour
{
#ifndef GS_API_LATEST
// NSLog(@"starting bonjour");
NSMutableArray *services=[NSMutableArray array];
for ( NSString *type in [self types] ) {
NSNetService *service;
service = [[[NSNetService alloc] initWithDomain:[self bonjourDomain] type:type name:[self bonjourName] port:[self port]] autorelease];
[services addObject:service];
}
[self setNetServices:services];
[[[self netServices] do] setDelegate:self];
[[[self netServices] do] publish];
// NSLog(@"did start bonjour: %@",[self netServices]);
#endif
}
-(void)stopBonjour
{
#ifndef GS_API_LATEST
[(NSNetService*)[[self netServices] do] stop];
[self setNetServices:nil];
#endif
}
-(BOOL)start:(NSError**)error
{
[self startHttpd];
[self startBonjour];
return YES;
}
-(int)defaultPort
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults registerDefaults:@{ @"port": @(51001)}];
return (int)[defaults integerForKey:@"port"] ?: 51001; // if we can't find the preference, ok since 0 is not an ok port
}
-init
{
self=[super init];
[self setPort:[self defaultPort]];
[self setBonjourName:[self defaultBonjourName]];
[self setThreadPoolSize:20];
return self;
}
-delegate
{
if ( [self _delegate] ) {
return [self _delegate];
}
return self;
}
-(struct MHD_Daemon*)httpd { return (struct MHD_Daemon*)[self _httpd]; }
-(int)acceptConnectionOnSoccaddr:(const struct sockaddr *)addr length:(int)addrlen
{
return MHD_YES;
}
static enum MHD_Result AcceptPolicyCallback(void *cls,
const struct sockaddr * addr,
socklen_t addrlen)
{
return [(id)cls acceptConnectionOnSoccaddr:addr length:addrlen];
}
-(NSData*)get:(NSString*)urlString
{
return [self get:urlString parameters:nil];
}
objectAccessor(NSData*,_defaultResponse, setDefaultResponse )
-(NSData*)defaultResponse
{
if ( !_defaultResponse ) {
[self setDefaultResponse:[NSData dataWithContentsOfMappedFile:@"default.txt"]];
}
return _defaultResponse;
}
-(NSData*)get:(NSString *)urlString parameters:(NSDictionary*)params
{
return [[NSString stringWithFormat:@"<html><head></head><body>%@ serving: %@</body></html>\n",
[self class],urlString] dataUsingEncoding:NSISOLatin1StringEncoding];
}
-(NSData*)get_fast_disabled:(NSString *)urlString parameters:(NSDictionary*)params
{
static NSData *a=nil;
if ( !a ) {
a=[[NSData alloc] initWithBytes:"hello" length:5];
}
return a;
}
-(NSData*)options:(NSString *)urlString parameters:(NSDictionary*)params
{
return [NSData data];
}
-(NSData*)propfind:(NSString *)urlString data:(NSData*)propFindData parameters:(NSDictionary*)params
{
return [NSData data];
}
-(NSData*)post:(NSString *)urlString parameters:(MPWPOSTProcessor*)params
{
NSLog(@ "POSTed some data to: %@",urlString);
return [NSData data];
}
-(NSData*)put:(NSString *)urlString data:putData parameters:(NSDictionary*)params
{
NSLog(@ "PUT some data to: %@",urlString);
return [NSData data];
}
void RequestCompletedCallback(void *cls,
struct MHD_Connection * connection,
void **con_cls,
enum MHD_RequestTerminationCode toe)
{
// [(id)cls requestCompletedForReason:toe withObject:(id)*con_cls];
[(id)*con_cls release];
}
static enum MHD_Result addLowerCaseKeyValuesToDictionary(void *cls,
enum MHD_ValueKind kind,
const char *key, const char *value)
{
[(NSMutableDictionary*)cls setObject:[NSString stringWithCString:value encoding:NSISOLatin1StringEncoding]
forKey:[[NSString stringWithCString:key encoding:NSISOLatin1StringEncoding] lowercaseString]];
return MHD_YES;
}
static enum MHD_Result addKeyValuesToDictionary(void *cls,
enum MHD_ValueKind kind,
const char *key, const char *value)
{
[(NSMutableDictionary*)cls setObject:[NSString stringWithCString:value encoding:NSISOLatin1StringEncoding]
forKey:[NSString stringWithCString:key encoding:NSISOLatin1StringEncoding]];
return MHD_YES;
}
static enum MHD_Result iterate_post (void *cls,
enum MHD_ValueKind kind,
const char *key,
const char *filename,
const char *content_type,
const char *transfer_encoding,
const char *bytes, uint64_t off, size_t size) {
// NSLog(@"iterate_post: key %s filename: %s content_type: %s transfer_encoding: %s len: %d content: %.*s",
// key,filename,content_type,transfer_encoding,(int)size,(int)size,bytes);
MPWPOSTProcessor *processor=(MPWPOSTProcessor*)cls ;
NSString *fileNameString = filename ? [NSString stringWithCString:filename encoding:NSISOLatin1StringEncoding] : nil;
NSString *keyString = key ? [NSString stringWithCString:key encoding:NSISOLatin1StringEncoding] : nil;
if ( keyString ) {
[processor appendBytes:bytes length:size
toKey:keyString
filename:fileNameString
contentType:nil];
} else {
NSLog(@"no key for POST data");
}
return MHD_YES;
}
-(NSData*)errorPage:exception
{
return [@"Not Found 404\n" asData];
}
objectAccessor(NSString*, _defaultMimeType, setDefaultMimeType)
-(NSString *)defaultMimetype
{
if ( self != [self delegate] && [[self delegate] respondsToSelector:@selector(defaultMimetype)]) {
return [[self delegate] defaultMimetype];
}
if ( _defaultMimeType) {
return _defaultMimeType;
}
return @"text/plain";
}
-(int)queueResponseForConnection:(struct MHD_Connection*)connection withResponse:(id)responseObject defaultCode:(int)responseCode
{
int status = responseCode;
struct MHD_Response* response=NULL;
// NSLog(@"will check responseData: %p",responseData);
// NSLog(@"will check responseData: %@",[responseData className]);
// NSLog(@"will check responseData: %@",responseData);
if (!responseObject || [responseObject isNil]) {
status = 404;
responseObject = [[@"404 Not Found" asData] retain];
}
if ( [responseObject isKindOfClass:[MPWBinding class]] || [responseObject isKindOfClass:[MPWReference class]]) {
// NSLog(@"got a redirect");
// NSLog(@"got a redirect: %@",responseData);
id <MPWReferencing> ref=(id <MPWReferencing>)responseObject;
NSString *location=[ref path];
const char *utf8location=[location UTF8String];
// NSLog(@"utf8location: %p",utf8location);
// NSLog(@"utf8location: '%s'",utf8location);
status = 302;
response= MHD_create_response_from_buffer(0, "", MHD_RESPMEM_PERSISTENT);
// NSLog(@"did create response: %p",response);
MHD_add_response_header (response, "Location", utf8location);
// NSLog(@"did add redirect: %p",response);
} else {
NSData *responseData = (NSData*)responseObject;
responseData=[[responseData asData] retain];
response= MHD_create_response_from_buffer ([responseData length],
( void*)[responseData bytes],
MHD_RESPMEM_PERSISTENT);
}
// fprintf(stderr, "did get responesData\n");
NSString *mimetype=[self defaultMimetype];
// NSLog(@"%@ has a mime type: %d",[responseData class],[responseData respondsToSelector:@selector(MIMEType)]);
if ( [responseObject respondsToSelector:@selector(MIMEType)]) {
NSString *responseMime=[responseObject MIMEType];
// NSLog(@"%@ has a mime type: %@",[responseData class],responseMime);
if ( responseMime ) {
mimetype=responseMime;
}
} else {
// NSLog(@"response %@ does not have a mime type",[responseData class]);
}
char mimebuf[200];
bzero(mimebuf, 200);
[mimetype getBytes:mimebuf maxLength:190 usedLength:NULL encoding:NSASCIIStringEncoding options:0 range:NSMakeRange(0, [mimetype length]) remainingRange:NULL];
MHD_add_response_header (response, "Connection", "Keep-Alive");
// MHD_add_response_header (response, "Keep-Alive", "timeout=3, max=100");
// MHD_add_response_header (response, "Expires", "Tue, 1 Jan 2013 08:12:31 GMT");
MHD_add_response_header (response, "Content-Type", mimebuf);
int ret = MHD_queue_response(connection,
status,
response);
// fprintf(stderr, "queued response\n");
MHD_destroy_response(response);
return ret;
}
-(int)queueResponseForConnection:(struct MHD_Connection*)connection withResponse:(id)responseObject
{
[self queueResponseForConnection:connection withResponse:responseObject defaultCode:MHD_HTTP_OK];
}
-(int)handleGetLikeSelector:(SEL)httpVerbSelector withURL:(const char*)url onConnection:(struct MHD_Connection*)connection context:(void**)con_cls
{
// fprintf(stderr, "in GET URL '%s'\n",url);
// fprintf(stderr, "will get NSPlatformCurrentThread\n");
// NSPlatformSetCurrentThread([[NSThread alloc] init]);
// NSPlatformCurrentThread();
// [NSObject new];
// fprintf(stderr, "will create pool\n");
id pool=[NSAutoreleasePool new];
// NSLog(@"isMainThread: %d",[[NSThread currentThread] isMainThread]);
// fprintf(stderr, "GET url: '%s'\n",url);
NSString *urlstring=[NSString stringWithCString:url encoding:NSISOLatin1StringEncoding];
// fprintf(stderr, "did create urlstring\n");
NSMutableDictionary *parameterDict=nil;;
#if 1
NSMutableDictionary *headerDict=nil;
parameterDict=[NSMutableDictionary dictionary];
headerDict=[NSMutableDictionary dictionary];
// MHD_get_connection_values (connection, MHD_GET_ARGUMENT_KIND, addKeyValuesToDictionary,( void *)parameterDict);
MHD_get_connection_values (connection, MHD_HEADER_KIND, addLowerCaseKeyValuesToDictionary,( void *)headerDict);
// NSLog(@"parameter dict: %@",headerDict);
// fprintf(stderr,"host: %s\n",[headerDict[@"host"] UTF8String]);
// NSLog(@"host: %@",headerDict[@"host"]);
#endif
NSData *responseData = nil;
int responseCode=MHD_HTTP_OK;
@try {
@autoreleasepool {
responseData=[[[self delegate] performSelector:httpVerbSelector withObject:urlstring withObject:parameterDict] retain];
}
[responseData autorelease];
}
@catch (NSException *exception) {
NSLog(@"exception: %@",exception);
NSLog(@"stack: %@",[exception callStackSymbols]);
responseData=[self errorPage:exception];
responseCode=500;
}
int ret=[self queueResponseForConnection:connection withResponse:responseData defaultCode:responseCode];
*con_cls = [responseData retain];
[pool drain];
return ret;
}
-(int)handleGet:(const char*)url onConnection:(struct MHD_Connection*)connection context:(void**)con_cls
{
return [self handleGetLikeSelector:@selector(get:parameters:) withURL:url onConnection:connection context:con_cls];
}
-(int)handleOptions:(const char*)url onConnection:(struct MHD_Connection*)connection context:(void**)con_cls
{
int retval= [self handleGetLikeSelector:@selector(options:parameters:) withURL:url onConnection:connection context:con_cls];
return retval;
}
-(int)handlePropfind:(const char*)url onConnection:(struct MHD_Connection*)connection context:(void**)con_cls
{
// fprintf(stderr, "in GET\n");
// fprintf(stderr, "will get NSPlatformCurrentThread\n");
// NSPlatformSetCurrentThread([[NSThread alloc] init]);
// NSPlatformCurrentThread();
// [NSObject new];
// fprintf(stderr, "will create pool\n");
id pool=[NSAutoreleasePool new];
// fprintf(stderr, "GET url: '%s'\n",url);
NSString *urlstring=[NSString stringWithCString:url encoding:NSISOLatin1StringEncoding];
// fprintf(stderr, "did create urlstring\n");
NSMutableDictionary *parameterDict=[NSMutableDictionary dictionary];
NSMutableDictionary *headerDict=[NSMutableDictionary dictionary];
MHD_get_connection_values (connection, MHD_GET_ARGUMENT_KIND, addKeyValuesToDictionary,( void *)parameterDict);
MHD_get_connection_values (connection, MHD_HEADER_KIND, addKeyValuesToDictionary,( void *)headerDict);
// NSLog(@"parameter dict: %@",parameterDict);
// NSLog(@"header dict: %@",headerDict);
NSData *responseData = nil;
int responseCode=0;
@try {
responseData=[[self delegate] propfind:urlstring parameters:headerDict ];
// responseData=[[self delegate] get:urlstring parameters:parameterDict];
responseCode=MHD_HTTP_OK;
}
@catch (NSException *exception) {
// NSLog(@"exception: %@",exception);
responseData=[self errorPage:exception];
responseCode=404;
}
responseData=[responseData asData];
struct MHD_Response* response= MHD_create_response_from_data([responseData length], ( void*)[responseData bytes], NO, NO);
MHD_add_response_header (response, "Connection", "Keep-Alive");
MHD_add_response_header (response, "Keep-Alive", "timeout=3, max=100");
// MHD_add_response_header (response, "Expires", "Tue, 1 Jan 2013 08:12:31 GMT");
MHD_add_response_header (response, "Content-Type", "text/xml");
MHD_add_response_header (response, "DAV", "1,2");
MHD_add_response_header (response, "Allow", "OPTIONS,GET,HEAD,POST,DELETE,TRACE,PROPFIND,PROPPATCH,COPY,MOVE,LOCK,UNLOCK");
int ret = MHD_queue_response(connection,
responseCode,
response);
MHD_destroy_response(response);
*con_cls = [responseData retain];
[pool drain];
return ret;
}
static enum MHD_Result AccessHandlerCallback(void *cls,
struct MHD_Connection * connection,
const char *url,
const char *method,
const char *version,
const char *upload_data,
size_t *upload_data_size,
void **con_cls)
{
id self=(id)cls;
if ( *con_cls == NULL ) {
// fprintf(stderr, "initial access handler callback: %s: url: '%s'\n",method,url);
// first time
@autoreleasepool {
#if 0
static int requests=0;
if ( ++requests % 5000 ==0 ) {
NSLog(@"request: %d",requests);
}
#endif
if ( !strcmp("GET", method) || !strcmp("OPTIONS", method) ) {
// fprintf(stderr, "GET url: '%s'\n",url);
*con_cls = self;
} else if ( !strcmp("PUT", method) || !strcmp("PROPFIND", method) || !strcmp("PATCH", method) ) {
NSMutableData* putData=[[NSMutableData alloc] init];
*con_cls = putData;
} else if ( !strcmp("POST", method) ) {
id pool=[NSAutoreleasePool new];
// fprintf(stderr, "POST url: '%s'\n",url);
MPWPOSTProcessor* processor=[MPWPOSTProcessor processor];
*con_cls = processor;
void *post_processor =(void*) MHD_create_post_processor (connection, 8192 ,
iterate_post, (void*) processor);
// fprintf(stderr, "create post_processor %p\n",post_processor);
[processor setProcessor:post_processor];
[processor retain];
[pool release];
} else {
@autoreleasepool {
static int unhandledCount=0;
if ( unhandledCount++ % 1000 == 0 ) {
NSLog(@"unhandled HTTP Verb: %s url: %s count %d",method,url, unhandledCount);
}
return MHD_NO;
}
}
}
return MHD_YES;
} else {
// fprintf(stderr, "continuing access handler callback: %s: url: '%s'\n",method,url);
if ( !strcmp("GET", method) ) {
return [self handleGet:url onConnection:connection context:con_cls];
}else if ( !strcmp("OPTIONS", method) ) {
return [self handleOptions:url onConnection:connection context:con_cls];
}else if ( !strcmp("PUT", method) || !strcmp("PATCH", method)|| !strcmp("PROPFIND", method)) {
id pool=[NSAutoreleasePool new];
NSMutableData *putData=(NSMutableData*)*con_cls;
if ( *upload_data_size != 0 ) {
[putData appendBytes:upload_data length:*upload_data_size];
*upload_data_size = 0;
return MHD_YES;
} else {
NSString *urlstring=[NSString stringWithCString:url encoding:NSISOLatin1StringEncoding];
// fprintf(stderr, "did create urlstring\n");
// MHD_get_connection_values (connection, MHD_GET_ARGUMENT_KIND, addKeyValuesToDictionary,( void *)parameterDict);
NSMutableDictionary *parameterDict=[NSMutableDictionary dictionary];
MHD_get_connection_values (connection, MHD_GET_ARGUMENT_KIND, addKeyValuesToDictionary,( void *)parameterDict);
NSMutableDictionary *headerDict=[NSMutableDictionary dictionary];
MHD_get_connection_values (connection, MHD_HEADER_KIND, addKeyValuesToDictionary,( void *)headerDict);
NSData *responseData=nil;
if (! strcmp("PUT", method)) {
responseData = [[self delegate] put:urlstring data:putData parameters:parameterDict];
} else if (! strcmp("PATCH", method)) {
responseData = [[self delegate] patch:urlstring data:putData parameters:parameterDict];
} else{
responseData = [[self delegate] propfind:urlstring data:putData parameters:headerDict];
}
// fprintf(stderr, "did get responesData\n");
[putData release];
struct MHD_Response* response= MHD_create_response_from_data([responseData length], ( void*)[responseData bytes], NO, NO);
int ret = MHD_queue_response(connection,
MHD_HTTP_OK,
response);
MHD_destroy_response(response);
*con_cls = [responseData retain];
[pool drain];
return ret;
} // fprintf(stderr, "did get responesData\n");
} else if ( !strcmp("POST", method) ) {
// NSLog(@"POST continuation upload size: %d",(int)*upload_data_size);
@autoreleasepool {
MPWPOSTProcessor *processor=(MPWPOSTProcessor*)*con_cls;
if ( *upload_data_size != 0 ) {
// fprintf(stderr, "will post_process with %p %p\n",processor,[processor processor]);
if ( [processor processor]) {
MHD_post_process ([processor processor], upload_data,
*upload_data_size);
} else {
[processor appendBytes:upload_data length:*upload_data_size toKey:@"data" filename:@"data" contentType:@"json"];
}
*upload_data_size = 0;
return MHD_YES;
} else {
NSString *urlstring=[NSString stringWithCString:url encoding:NSISOLatin1StringEncoding];
// fprintf(stderr, "did create urlstring\n");
// MHD_get_connection_values (connection, MHD_GET_ARGUMENT_KIND, addKeyValuesToDictionary,( void *)parameterDict);
NSMutableDictionary *parameterDict=[NSMutableDictionary dictionary];
MHD_get_connection_values (connection, MHD_GET_ARGUMENT_KIND, addKeyValuesToDictionary,( void *)parameterDict);
[processor addParameters:parameterDict];
id responseObject = [[self delegate] post:urlstring parameters:processor];
[processor release];
*con_cls = [responseObject retain];
return [self queueResponseForConnection:connection withResponse:responseObject];
}
return NO;
}
}
}
return NO;
}
-(void)setUnixDomainSocketPath:(NSString*)path
{
const char *cpath = [path UTF8String];
struct sockaddr_un address;
address.sun_family = AF_UNIX;
strcpy(address.sun_path, cpath);
int fd = socket(AF_UNIX, SOCK_STREAM, 0);
if ( bind(fd, (struct sockaddr*)(&address), sizeof(address)) == 0) {
listen(fd, 100);
self.socket = fd;
} else {
perror("bind failed");
}
}
-(BOOL)startHttpd
{
int attempts=0;
while ( ![self httpd] && attempts < 50 ) {
// if ( self.socket ) {
// NSLog(@"will listen on Unix socket, fd: %d",self.socket);
// } else {
// NSLog(@"will listen on port: %d",self.port);
// }
[self setHttpd:MHD_start_daemon (
MHD_USE_INTERNAL_POLLING_THREAD,
[self port],
AcceptPolicyCallback ,
self,
AccessHandlerCallback ,
self,
MHD_OPTION_NOTIFY_COMPLETED,
RequestCompletedCallback,
self,
MHD_OPTION_THREAD_POOL_SIZE,
[self threadPoolSize],
(self.socket ? MHD_OPTION_LISTEN_SOCKET : MHD_OPTION_END ),
self.socket ,
MHD_OPTION_END
)];
if (![self httpd]) {
[self setPort:[self port]+1];
attempts++;
}
}
// NSLog(@"=== did start %p on port %d",[self httpd],[self port]);
return [self httpd] != NULL;
}
-(int)runWithStdin:(id <StreamSource>)source Stdout:(MPWByteStream*)target
{
[self startHttpd];
[[NSRunLoop currentRunLoop] run];
}
-(void)stopHttpd
{
if ( [self httpd] ) {
// NSLog(@"stopping httpd: %p",[self httpd]);
MHD_stop_daemon ([self httpd]);
// NSLog(@"=== did stop %p",[self httpd]);
[self setHttpd:NULL];
}
}
-(void)stop
{
[self stopBonjour];
[self stopHttpd];
}
-(void)dealloc
{
[self stop];
[super dealloc];
}
@end