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//
// GTMTestHTTPServer.m
//
// Copyright 2007-2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMTestHTTPServer.h"
#import "GTMHTTPServer.h"
#import "GTMRegex.h"
static NSArray *GetSubPatternsOfFirstStringMatchedByPattern(NSString *stringToSearch,
NSString *pattern) {
GTMRegex *regex = [GTMRegex regexWithPattern:pattern];
NSString *firstMatch = [regex firstSubStringMatchedInString:stringToSearch];
NSArray *subPatterns = [regex subPatternsOfString:firstMatch];
return subPatterns;
}
@implementation GTMTestHTTPServer
- (id)initWithDocRoot:(NSString *)docRoot {
self = [super init];
if (self) {
docRoot_ = [docRoot copy];
server_ = [[GTMHTTPServer alloc] initWithDelegate:self];
NSError *error = nil;
if ((docRoot == nil) || (![server_ start:&error])) {
_GTMDevLog(@"Failed to start up the webserver (docRoot='%@', error=%@)",
docRoot_, error);
[self release];
return nil;
}
}
return self;
}
- (void)dealloc {
[docRoot_ release];
[server_ release];
[super dealloc];
}
- (uint16_t)port {
return [server_ port];
}
- (GTMHTTPResponseMessage *)httpServer:(GTMHTTPServer *)server
handleRequest:(GTMHTTPRequestMessage *)request {
_GTMDevAssert(server == server_, @"how'd we get a different server?!");
UInt32 resultStatus = 0;
NSData *data = nil;
// clients should treat dates as opaque, generally
NSString *modifiedDate = @"thursday";
NSString *postString = @"";
NSData *postData = [request body];
if ([postData length] > 0) {
postString = [[[NSString alloc] initWithData:postData
encoding:NSUTF8StringEncoding] autorelease];
}
NSDictionary *allHeaders = [request allHeaderFieldValues];
NSString *ifModifiedSince = [allHeaders objectForKey:@"If-Modified-Since"];
NSString *authorization = [allHeaders objectForKey:@"Authorization"];
NSString *path = [[request URL] absoluteString];
if ([path hasSuffix:@".auth"]) {
if (![authorization isEqualToString:@"GoogleLogin auth=GoodAuthToken"]) {
GTMHTTPResponseMessage *response =
[GTMHTTPResponseMessage emptyResponseWithCode:401];
return response;
} else {
path = [path substringToIndex:[path length] - 5];
}
}
NSString *overrideHeader = [allHeaders objectForKey:@"X-HTTP-Method-Override"];
NSString *httpCommand = [request method];
if ([httpCommand isEqualToString:@"POST"] &&
[overrideHeader length] > 1) {
httpCommand = overrideHeader;
}
NSArray *searchResult = nil;
if ([path hasSuffix:@"/accounts/ClientLogin"]) {
// it's a sign-in attempt; it's good unless the password is "bad" or
// "captcha"
// use regular expression to find the password
NSString *password = @"";
searchResult = GetSubPatternsOfFirstStringMatchedByPattern(path, @"Passwd=([^&\n]*)");
if ([searchResult count] == 2) {
password = [searchResult objectAtIndex:1];
}
if ([password isEqualToString:@"bad"]) {
resultStatus = 403;
} else if ([password isEqualToString:@"captcha"]) {
NSString *loginToken = @"";
NSString *loginCaptcha = @"";
searchResult = GetSubPatternsOfFirstStringMatchedByPattern(postString, @"logintoken=([^&\n]*)");
if ([searchResult count] == 2) {
loginToken = [searchResult objectAtIndex:1];
}
searchResult = GetSubPatternsOfFirstStringMatchedByPattern(postString, @"logincaptcha=([^&\n]*)");
if ([searchResult count] == 2) {
loginCaptcha = [searchResult objectAtIndex:1];
}
if ([loginToken isEqualToString:@"CapToken"] &&
[loginCaptcha isEqualToString:@"good"]) {
resultStatus = 200;
} else {
// incorrect captcha token or answer provided
resultStatus = 403;
}
} else {
// valid username/password
resultStatus = 200;
}
} else if ([httpCommand isEqualToString:@"DELETE"]) {
// it's an object delete; read and return empty data
resultStatus = 200;
} else {
// queries that have something like "?status=456" should fail with the
// status code
searchResult = GetSubPatternsOfFirstStringMatchedByPattern(path, @"status=([0-9]+)");
if ([searchResult count] == 2) {
resultStatus = [[searchResult objectAtIndex:1] intValue];
} else if ([ifModifiedSince isEqualToString:modifiedDate]) {
resultStatus = 304;
} else {
NSString *docPath = [docRoot_ stringByAppendingPathComponent:path];
data = [NSData dataWithContentsOfFile:docPath];
if (data) {
resultStatus = 200;
} else {
resultStatus = 404;
}
}
}
GTMHTTPResponseMessage *response =
[GTMHTTPResponseMessage responseWithBody:data
contentType:@"text/plain"
statusCode:resultStatus];
[response setValue:modifiedDate forHeaderField:@"Last-Modified"];
[response setValue:[NSString stringWithFormat:@"TestCookie=%@", [path lastPathComponent]]
forHeaderField:@"Set-Cookie"];
return response;
}
@end
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