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// Copyright 2017 Google
//
// 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 "FIRStorageErrors.h"
#import "FIRStorageConstants_Private.h"
#import "FIRStorageReference.h"
#import "FIRStorageReference_Private.h"
@implementation FIRStorageErrors
+ (NSError *)errorWithCode:(FIRStorageErrorCode)code {
return [FIRStorageErrors errorWithCode:code infoDictionary:nil];
}
+ (NSError *)errorWithCode:(FIRStorageErrorCode)code
infoDictionary:(nullable NSDictionary *)dictionary {
NSMutableDictionary *errorDictionary;
if (dictionary) {
errorDictionary = [dictionary mutableCopy];
} else {
errorDictionary = [[NSMutableDictionary alloc] init];
}
NSString *errorMessage;
switch (code) {
case FIRStorageErrorCodeObjectNotFound:
errorMessage =
[NSString stringWithFormat:@"Object %@ does not exist.", errorDictionary[@"object"]];
break;
case FIRStorageErrorCodeBucketNotFound:
errorMessage =
[NSString stringWithFormat:@"Bucket %@ does not exist.", errorDictionary[@"bucket"]];
break;
case FIRStorageErrorCodeProjectNotFound:
errorMessage =
[NSString stringWithFormat:@"Project %@ does not exist.", errorDictionary[@"project"]];
break;
case FIRStorageErrorCodeQuotaExceeded: {
NSString *const kQuotaExceededFormat =
@"Quota for bucket %@ exceeded, please view quota on firebase.google.com.";
errorMessage = [NSString stringWithFormat:kQuotaExceededFormat, errorDictionary[@"bucket"]];
break;
}
case FIRStorageErrorCodeDownloadSizeExceeded: {
int64_t total = [errorDictionary[@"totalSize"] longLongValue];
int64_t size = [errorDictionary[@"maxAllowedSize"] longLongValue];
NSString *totalString = total ? @(total).stringValue : @"unknown";
NSString *sizeString = total ? @(size).stringValue : @"unknown";
NSString *const kSizeExceededErrorFormat =
@"Attempted to download object with size of %@ bytes, "
@"which exceeds the maximum size of %@ bytes. "
@"Consider raising the maximum download size, or using "
@"[FIRStorageReference writeToFile:]";
errorMessage = [NSString stringWithFormat:kSizeExceededErrorFormat, totalString, sizeString];
break;
}
case FIRStorageErrorCodeUnauthenticated:
errorMessage =
@"User is not authenticated, please authenticate using Firebase "
@"Authentication and try again.";
break;
case FIRStorageErrorCodeUnauthorized: {
NSString *bucket = errorDictionary[@"bucket"];
NSString *object = errorDictionary[@"object"];
NSString *const kUnauthorizedFormat = @"User does not have permission to access gs://%@/%@.";
errorMessage = [NSString stringWithFormat:kUnauthorizedFormat, bucket, object];
break;
}
case FIRStorageErrorCodeRetryLimitExceeded:
errorMessage = @"Max retry time for operation exceeded, please try again.";
break;
case FIRStorageErrorCodeNonMatchingChecksum: {
// TODO: replace with actual checksum strings when we choose to implement.
NSString *const kChecksumFailedErrorFormat =
@"Uploaded/downloaded object %@ has checksum: %@ "
@"which does not match server checksum: %@. Please retry the upload/download.";
errorMessage = [NSString stringWithFormat:kChecksumFailedErrorFormat, @"object",
@"client checksum", @"server checksum"];
break;
}
case FIRStorageErrorCodeCancelled:
errorMessage = @"User cancelled the upload/download.";
break;
case FIRStorageErrorCodeUnknown:
/* Fall through to default case for unknown errors */
default:
errorMessage = @"An unknown error occurred, please check the server response.";
break;
}
errorDictionary[NSLocalizedDescriptionKey] = errorMessage;
NSError *err = [NSError errorWithDomain:FIRStorageErrorDomain code:code userInfo:errorDictionary];
return err;
}
+ (nullable NSError *)errorWithServerError:(nullable NSError *)error
reference:(nullable FIRStorageReference *)reference {
if (error == nil) {
return nil;
}
FIRStorageErrorCode errorCode;
switch (error.code) {
case 400:
errorCode = FIRStorageErrorCodeUnknown;
break;
case 401:
errorCode = FIRStorageErrorCodeUnauthenticated;
break;
case 402:
errorCode = FIRStorageErrorCodeQuotaExceeded;
break;
case 403:
errorCode = FIRStorageErrorCodeUnauthorized;
break;
case 404:
errorCode = FIRStorageErrorCodeObjectNotFound;
break;
default:
errorCode = FIRStorageErrorCodeUnknown;
break;
}
NSMutableDictionary *errorDictionary =
[[[NSDictionary alloc] initWithDictionary:error.userInfo] mutableCopy];
errorDictionary[kFIRStorageResponseErrorDomain] = error.domain;
errorDictionary[kFIRStorageResponseErrorCode] = @(error.code);
// Turn raw response into a string
NSData *responseData = errorDictionary[@"data"];
if (responseData) {
NSString *errorString =
[[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
errorDictionary[kFIRStorageResponseBody] = errorString ?: @"No Response from Server.";
}
errorDictionary[@"bucket"] = reference.path.bucket;
errorDictionary[@"object"] = reference.path.object;
NSError *clientError = [FIRStorageErrors errorWithCode:errorCode infoDictionary:errorDictionary];
return clientError;
}
+ (NSError *)errorWithInvalidRequest:(NSData *)request {
NSString *requestString = [[NSString alloc] initWithData:request encoding:NSUTF8StringEncoding];
NSString *invalidDataString =
[NSString stringWithFormat:kFIRStorageInvalidDataFormat, requestString];
NSDictionary *dict;
if (invalidDataString.length > 0) {
dict = @{NSLocalizedFailureReasonErrorKey : invalidDataString};
}
return [FIRStorageErrors errorWithCode:FIRStorageErrorCodeUnknown infoDictionary:dict];
}
+ (NSError *)errorWithCustomMessage:(NSString *)errorMessage {
return [NSError errorWithDomain:FIRStorageErrorDomain
code:FIRStorageErrorCodeUnknown
userInfo:@{NSLocalizedDescriptionKey : errorMessage}];
}
@end
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