/*
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* Copyright 2012 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "ZXResult.h"
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#import "ZXSMSMMSResultParser.h"
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#import "ZXSMSParsedResult.h"
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@implementation ZXSMSMMSResultParser
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- (ZXParsedResult *)parse:(ZXResult *)result {
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NSString *rawText = [ZXResultParser massagedText:result];
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if (!([rawText hasPrefix:@"sms:"] || [rawText hasPrefix:@"SMS:"] || [rawText hasPrefix:@"mms:"] || [rawText hasPrefix:@"MMS:"])) {
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return nil;
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}
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// Check up front if this is a URI syntax string with query arguments
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NSMutableDictionary *nameValuePairs = [self parseNameValuePairs:rawText];
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NSString *subject = nil;
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NSString *body = nil;
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BOOL querySyntax = NO;
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if (nameValuePairs != nil && [nameValuePairs count] > 0) {
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subject = nameValuePairs[@"subject"];
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body = nameValuePairs[@"body"];
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querySyntax = YES;
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}
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// Drop sms, query portion
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NSUInteger queryStart = [rawText rangeOfString:@"?" options:NSLiteralSearch range:NSMakeRange(4, [rawText length] - 4)].location;
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NSString *smsURIWithoutQuery;
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// If it's not query syntax, the question mark is part of the subject or message
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if (queryStart == NSNotFound || !querySyntax) {
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smsURIWithoutQuery = [rawText substringFromIndex:4];
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} else {
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smsURIWithoutQuery = [rawText substringWithRange:NSMakeRange(4, queryStart - 4)];
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}
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int lastComma = -1;
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NSInteger comma;
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NSMutableArray *numbers = [NSMutableArray arrayWithCapacity:1];
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NSMutableArray *vias = [NSMutableArray arrayWithCapacity:1];
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while ((comma = [smsURIWithoutQuery rangeOfString:@"," options:NSLiteralSearch range:NSMakeRange(lastComma + 1, (int)[smsURIWithoutQuery length] - lastComma - 1)].location) > lastComma && comma != NSNotFound) {
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NSString *numberPart = [smsURIWithoutQuery substringWithRange:NSMakeRange(lastComma + 1, comma - lastComma - 1)];
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[self addNumberVia:numbers vias:vias numberPart:numberPart];
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lastComma = (int)comma;
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}
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[self addNumberVia:numbers vias:vias numberPart:[smsURIWithoutQuery substringFromIndex:lastComma + 1]];
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return [ZXSMSParsedResult smsParsedResultWithNumbers:numbers
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vias:vias
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subject:subject
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body:body];
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}
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- (void)addNumberVia:(NSMutableArray *)numbers vias:(NSMutableArray *)vias numberPart:(NSString *)numberPart {
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NSUInteger numberEnd = [numberPart rangeOfString:@";"].location;
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if (numberEnd == NSNotFound) {
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[numbers addObject:numberPart];
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[vias addObject:[NSNull null]];
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} else {
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[numbers addObject:[numberPart substringToIndex:numberEnd]];
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NSString *maybeVia = [numberPart substringFromIndex:numberEnd + 1];
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if ([maybeVia hasPrefix:@"via="]) {
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[vias addObject:[maybeVia substringFromIndex:4]];
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} else {
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[vias addObject:[NSNull null]];
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}
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}
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}
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@end
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