"]; [r appendContentHTMLString:title]; [r appendContentString:@"

/* Copyright (C) 2000-2003 SKYRIX Software AG This file is part of OGo OGo 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. OGo 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 OGo; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ // $Id$ #include "SoDefaultRenderer.h" #include "SoObjectRequestHandler.h" #include "SoSecurityManager.h" #include "WOContext+private.h" // required for page rendering #include "WOContext+SoObjects.h" #include "SoSecurityManager.h" #include "SoSecurityException.h" #include "SoObject.h" #include "NSException+HTTP.h" #include #include #include #include #include #include "common.h" @implementation SoDefaultRenderer static int debugOn = 0; + (void)initialize { static BOOL didInit = NO; if (!didInit) { NSUserDefaults *ud = [NSUserDefaults standardUserDefaults]; didInit = YES; debugOn = [ud boolForKey:@"SoRendererDebugEnabled"]; } } + (id)sharedRenderer { static SoDefaultRenderer *singleton = nil; if (singleton == nil) singleton = [[SoDefaultRenderer alloc] init]; return singleton; } /* rendering */ - (NSException *)renderException:(NSException *)_ex inContext:(WOContext *)_ctx { WOResponse *r = [_ctx response]; int stat; /* check whether it's a security framework exception */ if ([_ex isKindOfClass:[SoSecurityException class]]) { id authenticator; if (debugOn) [self debugWithFormat:@" render as security exception: %@", _ex]; authenticator = [(SoSecurityException *)_ex authenticator]; if (authenticator == nil) authenticator = [[_ctx application] authenticatorInContext:_ctx]; if (authenticator) { if (debugOn) [self debugWithFormat:@" authenticator: %@", authenticator]; if (([authenticator renderException:_ex inContext:_ctx])) { if (debugOn) [self debugWithFormat:@" authenticator did render exception."]; return nil; } } else { if (debugOn) [self debugWithFormat:@" missing authenticator."]; } } if (debugOn) [self debugWithFormat:@" as exception"]; // TODO: add ability to specify HTTP headers in the user info? if ((stat = [_ex httpStatus]) > 0) { [r setStatus:stat]; if (stat >= 200 && stat < 300) { [r appendContentString:[_ex reason]]; return nil; } } else [r setStatus:500]; [r setHeader:@"text/html; charset=\"iso-8859-1\"" forKey:@"content-type"]; [r appendContentString: @"\n" @"\n" @"" @"

An error occurred during object publishing

"]; [r appendContentString:@"

"]; [r appendContentString:[_ex reason]]; [r appendContentString:@"

"]; [r appendContentString:@"\n"]; [r appendContentString:@"\n"]; return nil; } - (NSException *)renderComponent:(WOComponent *)_c inContext:(WOContext *)_ctx{ WOResponse *r = [_ctx response]; if (debugOn) { [self debugWithFormat: @" as component (use appendToResponse:inContext:)"]; } [r setHeader:@"text/html" forKey:@"content-type"]; [_ctx setPage:_c]; [_ctx enterComponent:_c content:nil]; [_c appendToResponse:r inContext:_ctx]; [_ctx leaveComponent:_c]; return nil; } - (NSException *)renderElement:(WOElement *)_e inContext:(WOContext *)_ctx { if (debugOn) [self debugWithFormat:@" as element (use appendToResponse:inContext:"]; [_e appendToResponse:[_ctx response] inContext:_ctx]; return nil; } - (NSException *)renderData:(NSData *)_data inContext:(WOContext *)_ctx { /* this could be extended to do some MIME magic */ WOResponse *r = [_ctx response]; [r setStatus:200]; [r setHeader:@"application/octet-stream" forKey:@"content-type"]; [r setHeader:[NSString stringWithFormat:@"%i", [_data length]] forKey:@"content-length"]; [r setContent:_data]; return nil; } - (NSException *)renderTuple:(NSArray *)_tuple inContext:(WOContext *)_ctx { WOResponse *r = [_ctx response]; NSString *title = nil, *body = nil; if (debugOn) [self debugWithFormat:@" as tuple"]; [r setStatus:200]; [r appendContentString:@""]; switch ([_tuple count]) { case 0: break; case 1: body = [_tuple objectAtIndex:0]; break; case 2: title = [_tuple objectAtIndex:0]; body = [_tuple objectAtIndex:1]; break; case 3: title = [_tuple objectAtIndex:0]; body = [[_tuple subarrayWithRange:NSMakeRange(1, [_tuple count] - 1)] componentsJoinedByString:@"
"]; break; } if ([title length] > 0) { [r appendContentString:@""]; [r appendContentHTMLString:title]; [r appendContentString:@""]; } if ([body length] > 0) { [r appendContentString:@""]; [r appendContentHTMLString:body]; [r appendContentString:@""]; } [r appendContentString:@""]; return nil; } - (NSException *)renderObjectAsString:(id)_object inContext:(WOContext *)_ctx { /* fall back, use stringValue */ WOResponse *r; if (debugOn) [self debugWithFormat:@" render as string (last fallback)"]; r = [_ctx response]; [r setStatus:200]; [r setHeader:@"text/html" forKey:@"content-type"]; [r appendContentString: @"\n" @"\n" @""]; [r appendContentHTMLString:[_object stringValue]]; [r appendContentString:@"\n"]; [r appendContentString:@"\n"]; return nil; } /* master dispatcher */ - (BOOL)processTupleResults { return NO; } - (NSException *)renderObject:(id)_object inContext:(WOContext *)_ctx { SoSecurityManager *sm; NSException *e; if ([_object isKindOfClass:[WOResponse class]]) { if (_object != [_ctx response]) { [self logWithFormat:@"response mismatch !"]; return [NSException exceptionWithHTTPStatus:500 /* internal error */]; } return nil; /* already rendered */ } /* base types, no useful security validation possible */ if ([_object isKindOfClass:[NSException class]]) return [self renderException:_object inContext:_ctx]; if ([_object isKindOfClass:[NSData class]]) return [self renderData:_object inContext:_ctx]; if ([_object isKindOfClass:[NSArray class]] && [self processTupleResults]) return [self renderTuple:_object inContext:_ctx]; /* objects that require validation */ sm = [_ctx soSecurityManager]; if ((e = [sm validateObject:_object inContext:_ctx]) != nil) return [self renderException:e inContext:_ctx]; if ([_object isKindOfClass:[WOComponent class]]) return [self renderComponent:_object inContext:_ctx]; if ([_object respondsToSelector:@selector(appendToResponse:inContext:)]) return [self renderElement:_object inContext:_ctx]; return [self renderObjectAsString:_object inContext:_ctx]; } - (BOOL)canRenderObject:(id)_object inContext:(WOContext *)_ctx { return YES; } /* debugging */ - (NSString *)loggingPrefix { return @"[so-dflt-renderer]"; } @end /* SoDefaultRenderer */