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/*
Copyright (C) 2005 SKYRIX Software AG
This file is part of SOPE.
SOPE is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
SOPE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with SOPE; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
#include <NGObjWeb/WODynamicElement.h>
/*
WOSetHeader / <var:set-header/>
This element can set/add a header field using -setHeader:forKey:. Usually its
used with a WOResponse (context.response is the default 'object'), but can be
used with arbitary objects implementing the same API (eg context.request).
Usage:
ChangeContentType: WOSetHeader {
header = "content-type";
value = "text/plain";
}
Bindings:
header|key|name - name of header (should be lowercase for WOResponse)
value - value to apply
addToExisting - use -appendHeader:forKey: or -setHeader:forKey:?
object - object to manipulate (defaults to [context response])
*/
@interface WOSetHeader : WODynamicElement // TODO: should be WOElement?
{
WOAssociation *object;
WOAssociation *header;
WOAssociation *value;
WOAssociation *addToExisting;
}
@end
#include <NGObjWeb/WOAssociation.h>
#include <NGObjWeb/WOMessage.h>
#include <NGObjWeb/WOContext.h>
#include "common.h"
@implementation WOSetHeader
- (id)initWithName:(NSString *)_name
associations:(NSDictionary *)_config
template:(WOElement *)_c
{
if ((self = [super initWithName:_name associations:_config template:_c])) {
self->header = OWGetProperty(_config, @"header");
self->value = OWGetProperty(_config, @"value");
self->addToExisting = OWGetProperty(_config, @"addToExisting");
self->object = OWGetProperty(_config, @"object");
if (self->header == nil) self->header = OWGetProperty(_config, @"key");
if (self->header == nil) self->header = OWGetProperty(_config, @"name");
}
return self;
}
- (void)dealloc {
[self->object release];
[self->header release];
[self->value release];
[self->addToExisting release];
[super dealloc];
}
/* generating response */
- (id)objectForKey:(NSString *)_key inContext:(WOContext *)_ctx {
if (![_key isNotEmpty])
return nil;
if ([_key isEqualToString:@"response"])
return [_ctx response];
if ([_key isEqualToString:@"request"])
return [_ctx request];
[self errorWithFormat:@"Unknown object key: '%@'", _key];
return nil;
}
- (void)appendToResponse:(WOResponse *)_response inContext:(WOContext *)_ctx {
WOMessage *lObject;
NSString *k, *v;
BOOL doAdd;
doAdd = (self->addToExisting != nil)
? [self->addToExisting boolValueInContext:_ctx]
: NO;
k = [self->header stringValueInContext:_ctx];
v = [self->value stringValueInContext:_ctx];
/* determine object to manipulate */
lObject = (self->object != nil)
? [self->object valueInContext:_ctx]
: (id)[_ctx response];
if ([lObject isKindOfClass:[NSString class]])
lObject = [self objectForKey:(NSString *)lObject inContext:_ctx];
/* apply */
if (doAdd) {
if ([v isNotNull])
[lObject appendHeader:v forKey:k];
}
else
[lObject setHeader:([v isNotNull] ? v : (NSString *)nil) forKey:k];
}
@end /* WOSetHeader */
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