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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #import "config.h"
     27 #import "WebErrors.h"
     28 
     29 #import "WKError.h"
     30 #import "WebError.h"
     31 #import <WebCore/LocalizedStrings.h>
     32 #import <WebCore/ResourceRequest.h>
     33 #import <WebCore/ResourceResponse.h>
     34 #import <pthread.h>
     35 
     36 using namespace WebCore;
     37 using namespace WebKit;
     38 
     39 // FIXME: We probably don't need to use NSErrors here.
     40 
     41 static NSString * const WebKitErrorMIMETypeKey =               @"WebKitErrorMIMETypeKey";
     42 static NSString * const WebKitErrorPlugInNameKey =             @"WebKitErrorPlugInNameKey";
     43 static NSString * const WebKitErrorPlugInPageURLStringKey =    @"WebKitErrorPlugInPageURLStringKey";
     44 
     45 // Policy errors
     46 #define WebKitErrorDescriptionCannotShowMIMEType WEB_UI_STRING("Content with specified MIME type cant be shown", "WebKitErrorCannotShowMIMEType description")
     47 #define WebKitErrorDescriptionCannotShowURL WEB_UI_STRING("The URL cant be shown", "WebKitErrorCannotShowURL description")
     48 #define WebKitErrorDescriptionFrameLoadInterruptedByPolicyChange WEB_UI_STRING("Frame load interrupted", "WebKitErrorFrameLoadInterruptedByPolicyChange description")
     49 #define WebKitErrorDescriptionCannotUseRestrictedPort WEB_UI_STRING("Not allowed to use restricted network port", "WebKitErrorCannotUseRestrictedPort description")
     50 
     51 // Plug-in and java errors
     52 #define WebKitErrorDescriptionCannotFindPlugin WEB_UI_STRING("The plug-in cant be found", "WebKitErrorCannotFindPlugin description")
     53 #define WebKitErrorDescriptionCannotLoadPlugin WEB_UI_STRING("The plug-in cant be loaded", "WebKitErrorCannotLoadPlugin description")
     54 #define WebKitErrorDescriptionJavaUnavailable WEB_UI_STRING("Java is unavailable", "WebKitErrorJavaUnavailable description")
     55 #define WebKitErrorDescriptionPlugInCancelledConnection WEB_UI_STRING("Plug-in cancelled", "WebKitErrorPlugInCancelledConnection description")
     56 #define WebKitErrorDescriptionPlugInWillHandleLoad WEB_UI_STRING("Plug-in handled load", "WebKitErrorPlugInWillHandleLoad description")
     57 
     58 static pthread_once_t registerErrorsControl = PTHREAD_ONCE_INIT;
     59 static void registerErrors(void);
     60 
     61 @interface NSError (WebKitExtras)
     62 + (NSError *)_webKitErrorWithDomain:(NSString *)domain code:(int)code URL:(NSURL *)URL;
     63 @end
     64 
     65 @implementation NSError (WebKitExtras)
     66 
     67 static NSMutableDictionary *descriptions = nil;
     68 
     69 + (void)_registerWebKitErrors
     70 {
     71     pthread_once(&registerErrorsControl, registerErrors);
     72 }
     73 
     74 -(id)_webkit_initWithDomain:(NSString *)domain code:(int)code URL:(NSURL *)URL
     75 {
     76     NSDictionary *descriptionsDict;
     77     NSString *localizedDesc;
     78     NSDictionary *dict;
     79     // insert a localized string here for those folks not savvy to our category methods
     80     descriptionsDict = [descriptions objectForKey:domain];
     81     localizedDesc = descriptionsDict ? [descriptionsDict objectForKey:[NSNumber numberWithInt:code]] : nil;
     82     dict = [NSDictionary dictionaryWithObjectsAndKeys:
     83         URL, @"NSErrorFailingURLKey",
     84         [URL absoluteString], @"NSErrorFailingURLStringKey",
     85         localizedDesc, NSLocalizedDescriptionKey,
     86         nil];
     87     return [self initWithDomain:domain code:code userInfo:dict];
     88 }
     89 
     90 +(id)_webkit_errorWithDomain:(NSString *)domain code:(int)code URL:(NSURL *)URL
     91 {
     92     return [[[self alloc] _webkit_initWithDomain:domain code:code URL:URL] autorelease];
     93 }
     94 
     95 + (NSError *)_webKitErrorWithDomain:(NSString *)domain code:(int)code URL:(NSURL *)URL
     96 {
     97     [self _registerWebKitErrors];
     98     return [self _webkit_errorWithDomain:domain code:code URL:URL];
     99 }
    100 
    101 + (NSError *)_webKitErrorWithCode:(int)code failingURL:(NSString *)URLString
    102 {
    103     return [self _webKitErrorWithDomain:WebError::webKitErrorDomain() code:code URL:[NSURL URLWithString:URLString]];
    104 }
    105 
    106 + (void)_webkit_addErrorsWithCodesAndDescriptions:(NSDictionary *)dictionary inDomain:(NSString *)domain
    107 {
    108     if (!descriptions)
    109         descriptions = [[NSMutableDictionary alloc] init];
    110 
    111     [descriptions setObject:dictionary forKey:domain];
    112 }
    113 
    114 static void registerErrors()
    115 {
    116     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    117 
    118     NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:
    119         // Policy errors
    120         (NSString *)WebKitErrorDescriptionCannotShowMIMEType,                   [NSNumber numberWithInt: kWKErrorCodeCannotShowMIMEType],
    121         (NSString *)WebKitErrorDescriptionCannotShowURL,                        [NSNumber numberWithInt: kWKErrorCodeCannotShowURL],
    122         (NSString *)WebKitErrorDescriptionFrameLoadInterruptedByPolicyChange,   [NSNumber numberWithInt: kWKErrorCodeFrameLoadInterruptedByPolicyChange],
    123         (NSString *)WebKitErrorDescriptionCannotUseRestrictedPort,              [NSNumber numberWithInt: kWKErrorCodeCannotUseRestrictedPort],
    124 
    125         // Plug-in and java errors
    126         (NSString *)WebKitErrorDescriptionCannotFindPlugin,                     [NSNumber numberWithInt: kWKErrorCodeCannotFindPlugIn],
    127         (NSString *)WebKitErrorDescriptionCannotLoadPlugin,                     [NSNumber numberWithInt: kWKErrorCodeCannotLoadPlugIn],
    128         (NSString *)WebKitErrorDescriptionJavaUnavailable,                      [NSNumber numberWithInt: kWKErrorCodeJavaUnavailable],
    129         (NSString *)WebKitErrorDescriptionPlugInCancelledConnection,            [NSNumber numberWithInt: kWKErrorCodePlugInCancelledConnection],
    130         (NSString *)WebKitErrorDescriptionPlugInWillHandleLoad,                 [NSNumber numberWithInt: kWKErrorCodePlugInWillHandleLoad],
    131         nil];
    132 
    133     [NSError _webkit_addErrorsWithCodesAndDescriptions:dict inDomain:WebError::webKitErrorDomain()];
    134 
    135     [pool drain];
    136 }
    137 
    138 @end
    139 
    140 namespace WebKit {
    141 
    142 ResourceError cancelledError(const ResourceRequest& request)
    143 {
    144     return [NSError _webKitErrorWithDomain:NSURLErrorDomain code:NSURLErrorCancelled URL:request.url()];
    145 }
    146 
    147 ResourceError blockedError(const ResourceRequest& request)
    148 {
    149     return [NSError _webKitErrorWithDomain:WebError::webKitErrorDomain() code:kWKErrorCodeCannotUseRestrictedPort URL:request.url()];
    150 }
    151 
    152 ResourceError cannotShowURLError(const ResourceRequest& request)
    153 {
    154     return [NSError _webKitErrorWithDomain:WebError::webKitErrorDomain() code:kWKErrorCodeCannotShowURL URL:request.url()];
    155 }
    156 
    157 ResourceError interruptForPolicyChangeError(const ResourceRequest& request)
    158 {
    159     return [NSError _webKitErrorWithDomain:WebError::webKitErrorDomain() code:kWKErrorCodeFrameLoadInterruptedByPolicyChange URL:request.url()];
    160 }
    161 
    162 ResourceError cannotShowMIMETypeError(const ResourceResponse& response)
    163 {
    164     return [NSError _webKitErrorWithDomain:NSURLErrorDomain code:kWKErrorCodeCannotShowMIMEType URL:response.url()];
    165 }
    166 
    167 ResourceError fileDoesNotExistError(const ResourceResponse& response)
    168 {
    169     return [NSError _webKitErrorWithDomain:NSURLErrorDomain code:NSURLErrorFileDoesNotExist URL:response.url()];
    170 }
    171 
    172 ResourceError pluginWillHandleLoadError(const ResourceResponse& response)
    173 {
    174     return [NSError _webKitErrorWithDomain:WebError::webKitErrorDomain() code:kWKErrorCodePlugInWillHandleLoad URL:response.url()];
    175 }
    176 
    177 } // namespace WebKit
    178