mirror of
https://github.com/gnustep/libs-base.git
synced 2025-05-10 16:20:42 +00:00
try to re-establish a dropped connection if using keepalive
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@20128 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-Macdonald
parent
c11628ed31
commit
2a49f09265
2 changed files with 245 additions and 191 deletions
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@ -2,6 +2,8 @@
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* Source/GSArray.m: Make perform methods enumerate forwards.
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* Source/Additions/GSXML.m: ([nodeAtIndex:]) fix memory leak.
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* Source/GSHTTPURLHandle.m: Re-instate change to try to provide
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better support for connections kept alive.
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2004-09-22 Richard Frith-Macdonald <rfm@gnu.org>
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@ -57,8 +57,10 @@ static NSString *httpVersion = @"1.1";
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{
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BOOL tunnel;
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BOOL debug;
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BOOL keepalive;
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NSFileHandle *sock;
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NSURL *url;
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NSURL *u;
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NSMutableData *dat;
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GSMimeParser *parser;
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GSMimeDocument *document;
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@ -67,6 +69,7 @@ static NSString *httpVersion = @"1.1";
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NSData *wData;
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NSMutableDictionary *request;
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unsigned int bodyPos;
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unsigned int redirects;
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enum {
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idle,
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connecting,
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@ -75,6 +78,7 @@ static NSString *httpVersion = @"1.1";
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} connectionState;
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}
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- (void) setDebug: (BOOL)flag;
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- (void) _tryLoadInBackground: (NSURL*)fromURL;
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@end
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/**
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@ -251,6 +255,7 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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- (void) dealloc
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{
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RELEASE(sock);
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RELEASE(u);
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RELEASE(url);
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RELEASE(dat);
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RELEASE(parser);
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@ -306,10 +311,12 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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NSMutableData *buf;
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NSString *version;
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if (debug == YES) NSLog(@"%@", NSStringFromSelector(_cmd));
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s = [basic mutableCopy];
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if ([[url query] length] > 0)
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if ([[u query] length] > 0)
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{
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[s appendFormat: @"?%@", [url query]];
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[s appendFormat: @"?%@", [u query]];
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}
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version = [request objectForKey: NSHTTPPropertyServerHTTPVersionKey];
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@ -321,7 +328,7 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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if ([wProperties objectForKey: @"host"] == nil)
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{
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[wProperties setObject: [url host] forKey: @"host"];
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[wProperties setObject: [u host] forKey: @"host"];
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}
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if ([wData length] > 0)
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@ -339,18 +346,18 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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}
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if ([wProperties objectForKey: @"authorisation"] == nil)
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{
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if ([url user] != nil)
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if ([u user] != nil)
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{
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NSString *auth;
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if ([[url password] length] > 0)
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if ([[u password] length] > 0)
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{
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auth = [NSString stringWithFormat: @"%@:%@",
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[url user], [url password]];
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[u user], [u password]];
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}
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else
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{
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auth = [NSString stringWithFormat: @"%@", [url user]];
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auth = [NSString stringWithFormat: @"%@", [u user]];
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}
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auth = [NSString stringWithFormat: @"Basic %@",
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[GSMimeDocument encodeBase64String: auth]];
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@ -374,17 +381,8 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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if (wData != nil)
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{
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[buf appendData: wData];
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DESTROY(wData);
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}
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/*
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* Send request to server.
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*/
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[sock writeInBackgroundAndNotify: buf];
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if (debug == YES) debugWrite(self, buf);
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RELEASE(buf);
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RELEASE(s);
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/*
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* Watch for write completion.
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*/
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@ -393,6 +391,14 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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name: GSFileHandleWriteCompletionNotification
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object: sock];
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connectionState = writing;
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/*
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* Send request to server.
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*/
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if (debug == YES) debugWrite(self, buf);
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[sock writeInBackgroundAndNotify: buf];
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RELEASE(buf);
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RELEASE(s);
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}
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- (void) bgdRead: (NSNotification*) not
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@ -490,6 +496,7 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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d = [parser data];
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r = NSMakeRange(bodyPos, [d length] - bodyPos);
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bodyPos = 0;
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DESTROY(wData);
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[self didLoadBytes: [d subdataWithRange: r]
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loadComplete: YES];
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}
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@ -557,172 +564,12 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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- (void) loadInBackground
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{
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NSNotificationCenter *nc;
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NSString *host = nil;
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NSString *port = nil;
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NSString *s;
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/*
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* Don't start a load if one is in progress.
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*/
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if (connectionState != idle)
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{
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NSLog(@"Attempt to load an http handle which is not idle ... ignored");
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return;
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}
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[dat setLength: 0];
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RELEASE(document);
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RELEASE(parser);
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parser = [GSMimeParser new];
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document = RETAIN([parser mimeDocument]);
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[self beginLoadInBackground];
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host = [url host];
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port = (id)[url port];
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if (port != nil)
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{
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port = [NSString stringWithFormat: @"%u", [port intValue]];
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}
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else
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{
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port = [url scheme];
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}
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if ([port isEqualToString: @"https"])
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{
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port = @"443";
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}
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else if ([port isEqualToString: @"http"])
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{
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port = @"80";
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}
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if (sock != nil)
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{
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NSString *method;
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NSString *path;
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NSString *basic;
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method = [request objectForKey: GSHTTPPropertyMethodKey];
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if (method == nil)
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{
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if ([wData length] > 0)
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{
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method = @"POST";
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}
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else
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{
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method = @"GET";
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}
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}
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path = [[url path] stringByTrimmingSpaces];
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if ([path length] == 0)
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{
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path = @"/";
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}
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basic = [NSString stringWithFormat: @"%@ %@", method, path];
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[self bgdApply: basic];
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return;
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}
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/*
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* If we have a local address specified, tell the file handle to bind to it.
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*/
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s = [request objectForKey: GSHTTPPropertyLocalHostKey];
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if ([s length] > 0)
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{
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s = [NSString stringWithFormat: @"bind-%@", s];
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}
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else
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{
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s = @"tcp"; // Bind to any.
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}
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if ([[request objectForKey: GSHTTPPropertyProxyHostKey] length] == 0)
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{
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if ([[url scheme] isEqualToString: @"https"])
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{
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NSString *cert;
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if (sslClass == 0)
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{
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[self backgroundLoadDidFailWithReason:
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@"https not supported ... needs SSL bundle"];
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return;
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}
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sock = [sslClass fileHandleAsClientInBackgroundAtAddress: host
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service: port
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protocol: s];
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cert = [request objectForKey: GSHTTPPropertyCertificateFileKey];
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if ([cert length] > 0)
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{
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NSString *key;
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NSString *pwd;
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key = [request objectForKey: GSHTTPPropertyKeyFileKey];
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pwd = [request objectForKey: GSHTTPPropertyPasswordKey];
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[sock sslSetCertificate: cert privateKey: key PEMpasswd: pwd];
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}
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}
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else
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{
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sock = [NSFileHandle fileHandleAsClientInBackgroundAtAddress: host
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service: port
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protocol: s];
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}
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}
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else
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{
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if ([[request objectForKey: GSHTTPPropertyProxyPortKey] length] == 0)
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{
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[request setObject: @"8080" forKey: GSHTTPPropertyProxyPortKey];
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}
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if ([[url scheme] isEqualToString: @"https"])
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{
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if (sslClass == 0)
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{
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[self backgroundLoadDidFailWithReason:
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@"https not supported ... needs SSL bundle"];
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return;
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}
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host = [request objectForKey: GSHTTPPropertyProxyHostKey];
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port = [request objectForKey: GSHTTPPropertyProxyPortKey];
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sock = [sslClass fileHandleAsClientInBackgroundAtAddress: host
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service: port
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protocol: s];
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}
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else
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{
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host = [request objectForKey: GSHTTPPropertyProxyHostKey];
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port = [request objectForKey: GSHTTPPropertyProxyPortKey];
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sock = [NSFileHandle fileHandleAsClientInBackgroundAtAddress: host
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service: port
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protocol: s];
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}
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}
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if (sock == nil)
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{
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extern int errno;
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/*
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* Tell superclass that the load failed - let it do housekeeping.
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*/
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[self backgroundLoadDidFailWithReason: [NSString stringWithFormat:
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@"Unable to connect to %@:%@ ... %s",
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host, port, GSLastErrorStr(errno)]];
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return;
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}
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RETAIN(sock);
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nc = [NSNotificationCenter defaultCenter];
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[nc addObserver: self
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selector: @selector(bgdConnect:)
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name: GSFileHandleConnectCompletionNotification
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object: sock];
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connectionState = connecting;
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[self _tryLoadInBackground: nil];
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}
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- (void) endLoadInBackground
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{
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DESTROY(wData);
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if (connectionState != idle)
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{
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NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
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@ -753,7 +600,9 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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NSString *method;
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NSString *path;
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path = [[url path] stringByTrimmingSpaces];
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if (debug == YES) NSLog(@"%@", NSStringFromSelector(_cmd));
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path = [[u path] stringByTrimmingSpaces];
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if ([path length] == 0)
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{
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path = @"/";
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@ -786,7 +635,7 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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/*
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* If SSL via proxy, set up tunnel first
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*/
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if ([[url scheme] isEqualToString: @"https"]
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if ([[u scheme] isEqualToString: @"https"]
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&& [[request objectForKey: GSHTTPPropertyProxyHostKey] length] > 0)
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{
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NSRunLoop *loop = [NSRunLoop currentRunLoop];
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@ -803,15 +652,15 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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{
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version = httpVersion;
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}
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if ([url port] == nil)
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if ([u port] == nil)
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{
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cmd = [NSString stringWithFormat: @"CONNECT %@:443 HTTP/%@\r\n\r\n",
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[url host], version];
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[u host], version];
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}
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else
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{
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cmd = [NSString stringWithFormat: @"CONNECT %@:%@ HTTP/%@\r\n\r\n",
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[url host], [url port], version];
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[u host], [u port], version];
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}
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/*
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@ -829,8 +678,8 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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object: sock];
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buf = [cmd dataUsingEncoding: NSASCIIStringEncoding];
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[sock writeInBackgroundAndNotify: buf];
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if (debug == YES) debugWrite(self, buf);
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[sock writeInBackgroundAndNotify: buf];
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when = [NSDate alloc];
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while (tunnel == YES)
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@ -855,7 +704,7 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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return;
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}
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}
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if ([[url scheme] isEqualToString: @"https"])
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if ([[u scheme] isEqualToString: @"https"])
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{
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/*
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* If we are an https connection, negotiate secure connection
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@ -885,17 +734,17 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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}
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}
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if ([[request objectForKey: GSHTTPPropertyProxyHostKey] length] > 0
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&& [[url scheme] isEqualToString: @"https"] == NO)
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&& [[u scheme] isEqualToString: @"https"] == NO)
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{
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if ([url port] == nil)
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if ([u port] == nil)
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{
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s = [[NSMutableString alloc] initWithFormat: @"%@ http://%@%@",
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method, [url host], path];
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method, [u host], path];
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}
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else
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{
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s = [[NSMutableString alloc] initWithFormat: @"%@ http://%@:%@%@",
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method, [url host], [url port], path];
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method, [u host], [u port], path];
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}
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}
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else // no proxy
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@ -910,13 +759,32 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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- (void) bgdWrite: (NSNotification*)notification
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{
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NSNotificationCenter *nc;
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NSDictionary *userInfo = [notification userInfo];
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NSString *e;
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if (debug == YES) NSLog(@"%@", NSStringFromSelector(_cmd));
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e = [userInfo objectForKey: GSFileHandleNotificationError];
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if (e != nil)
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{
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tunnel = NO;
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if (keepalive == YES)
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{
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/*
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* The write failed ... connection dropped ... and we
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* are re-using an existing connection (keepalive = YES)
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* then we may try again with a new connection.
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*/
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nc = [NSNotificationCenter defaultCenter];
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[nc removeObserver: self
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name: GSFileHandleWriteCompletionNotification
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object: sock];
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[sock closeFile];
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DESTROY(sock);
|
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connectionState = idle;
|
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[self _tryLoadInBackground: u];
|
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return;
|
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}
|
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NSLog(@"Failed to write command to socket - %@", e);
|
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/*
|
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* Tell superclass that the load failed - let it do housekeeping.
|
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|
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@ -927,8 +795,6 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
|
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}
|
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else
|
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{
|
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NSNotificationCenter *nc;
|
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|
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/*
|
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* Don't watch for write completions any more.
|
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*/
|
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|
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@ -1030,6 +896,192 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
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debug = flag;
|
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}
|
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|
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- (void) _tryLoadInBackground: (NSURL*)fromURL
|
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{
|
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NSNotificationCenter *nc;
|
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NSString *host = nil;
|
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NSString *port = nil;
|
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NSString *s;
|
||||
|
||||
/*
|
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* Don't start a load if one is in progress.
|
||||
*/
|
||||
if (connectionState != idle)
|
||||
{
|
||||
NSLog(@"Attempt to load an http handle which is not idle ... ignored");
|
||||
return;
|
||||
}
|
||||
|
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[dat setLength: 0];
|
||||
RELEASE(document);
|
||||
RELEASE(parser);
|
||||
parser = [GSMimeParser new];
|
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document = RETAIN([parser mimeDocument]);
|
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|
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/*
|
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* First time round, fromURL is nil, so we use the url ivar and
|
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* we notify that the load is begining. On retries we get a real
|
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* value in fromURL to use.
|
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*/
|
||||
if (fromURL == nil)
|
||||
{
|
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redirects = 0;
|
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ASSIGN(u, url);
|
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[self beginLoadInBackground];
|
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}
|
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else
|
||||
{
|
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ASSIGN(u, fromURL);
|
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}
|
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|
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host = [u host];
|
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port = (id)[u port];
|
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if (port != nil)
|
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{
|
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port = [NSString stringWithFormat: @"%u", [port intValue]];
|
||||
}
|
||||
else
|
||||
{
|
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port = [u scheme];
|
||||
}
|
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if ([port isEqualToString: @"https"])
|
||||
{
|
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port = @"443";
|
||||
}
|
||||
else if ([port isEqualToString: @"http"])
|
||||
{
|
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port = @"80";
|
||||
}
|
||||
|
||||
if (sock == nil)
|
||||
{
|
||||
keepalive = NO; // New connection
|
||||
/*
|
||||
* If we have a local address specified,
|
||||
* tell the file handle to bind to it.
|
||||
*/
|
||||
s = [request objectForKey: GSHTTPPropertyLocalHostKey];
|
||||
if ([s length] > 0)
|
||||
{
|
||||
s = [NSString stringWithFormat: @"bind-%@", s];
|
||||
}
|
||||
else
|
||||
{
|
||||
s = @"tcp"; // Bind to any.
|
||||
}
|
||||
|
||||
if ([[request objectForKey: GSHTTPPropertyProxyHostKey] length] == 0)
|
||||
{
|
||||
if ([[u scheme] isEqualToString: @"https"])
|
||||
{
|
||||
NSString *cert;
|
||||
|
||||
if (sslClass == 0)
|
||||
{
|
||||
[self backgroundLoadDidFailWithReason:
|
||||
@"https not supported ... needs SSL bundle"];
|
||||
return;
|
||||
}
|
||||
sock = [sslClass fileHandleAsClientInBackgroundAtAddress: host
|
||||
service: port
|
||||
protocol: s];
|
||||
cert = [request objectForKey: GSHTTPPropertyCertificateFileKey];
|
||||
if ([cert length] > 0)
|
||||
{
|
||||
NSString *key;
|
||||
NSString *pwd;
|
||||
|
||||
key = [request objectForKey: GSHTTPPropertyKeyFileKey];
|
||||
pwd = [request objectForKey: GSHTTPPropertyPasswordKey];
|
||||
[sock sslSetCertificate: cert privateKey: key PEMpasswd: pwd];
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
sock = [NSFileHandle fileHandleAsClientInBackgroundAtAddress: host
|
||||
service: port
|
||||
protocol: s];
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if ([[request objectForKey: GSHTTPPropertyProxyPortKey] length] == 0)
|
||||
{
|
||||
[request setObject: @"8080" forKey: GSHTTPPropertyProxyPortKey];
|
||||
}
|
||||
if ([[u scheme] isEqualToString: @"https"])
|
||||
{
|
||||
if (sslClass == 0)
|
||||
{
|
||||
[self backgroundLoadDidFailWithReason:
|
||||
@"https not supported ... needs SSL bundle"];
|
||||
return;
|
||||
}
|
||||
host = [request objectForKey: GSHTTPPropertyProxyHostKey];
|
||||
port = [request objectForKey: GSHTTPPropertyProxyPortKey];
|
||||
sock = [sslClass fileHandleAsClientInBackgroundAtAddress: host
|
||||
service: port
|
||||
protocol: s];
|
||||
}
|
||||
else
|
||||
{
|
||||
host = [request objectForKey: GSHTTPPropertyProxyHostKey];
|
||||
port = [request objectForKey: GSHTTPPropertyProxyPortKey];
|
||||
sock = [NSFileHandle
|
||||
fileHandleAsClientInBackgroundAtAddress: host
|
||||
service: port
|
||||
protocol: s];
|
||||
}
|
||||
}
|
||||
if (sock == nil)
|
||||
{
|
||||
extern int errno;
|
||||
|
||||
/*
|
||||
* Tell superclass that the load failed - let it do housekeeping.
|
||||
*/
|
||||
[self backgroundLoadDidFailWithReason: [NSString stringWithFormat:
|
||||
@"Unable to connect to %@:%@ ... %s",
|
||||
host, port, GSLastErrorStr(errno)]];
|
||||
return;
|
||||
}
|
||||
RETAIN(sock);
|
||||
nc = [NSNotificationCenter defaultCenter];
|
||||
[nc addObserver: self
|
||||
selector: @selector(bgdConnect:)
|
||||
name: GSFileHandleConnectCompletionNotification
|
||||
object: sock];
|
||||
connectionState = connecting;
|
||||
}
|
||||
else
|
||||
{
|
||||
NSString *method;
|
||||
NSString *path;
|
||||
NSString *basic;
|
||||
|
||||
keepalive = YES; // Reusing a connection.
|
||||
method = [request objectForKey: GSHTTPPropertyMethodKey];
|
||||
if (method == nil)
|
||||
{
|
||||
if ([wData length] > 0)
|
||||
{
|
||||
method = @"POST";
|
||||
}
|
||||
else
|
||||
{
|
||||
method = @"GET";
|
||||
}
|
||||
}
|
||||
path = [[u path] stringByTrimmingSpaces];
|
||||
if ([path length] == 0)
|
||||
{
|
||||
path = @"/";
|
||||
}
|
||||
basic = [NSString stringWithFormat: @"%@ %@", method, path];
|
||||
[self bgdApply: basic];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Writes the specified data as the body of an <code>http</code>
|
||||
* or <code>https</code> request to the web server.
|
||||
|
|
|
|||
Loading…
Reference in a new issue