109 lines
3.0 KiB
Objective-C
Executable File
109 lines
3.0 KiB
Objective-C
Executable File
//
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// MIT License (MIT)
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//
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// Copyright (c) 2016 Brent Simmons
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// Copyright (c) 2018 Oleg Geier
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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// of the Software, and to permit persons to whom the Software is furnished to do
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// so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#import "RSParsedArticle.h"
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#import "NSString+RSXML.h"
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@interface RSParsedArticle()
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@property (nonatomic, copy) NSString *internalArticleID;
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@end
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@implementation RSParsedArticle
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- (instancetype)initWithFeedURL:(NSString *)feedURL dateParsed:(NSDate*)parsed {
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NSParameterAssert(feedURL != nil);
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self = [super init];
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if (self) {
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_feedURL = feedURL;
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_dateParsed = parsed;
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}
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return self;
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}
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#pragma mark - Unique Article ID
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/**
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Article ID will be generated on the first access.
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*/
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- (NSString *)articleID {
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if (!_internalArticleID) {
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_internalArticleID = self.calculatedUniqueID;
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}
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return _internalArticleID;
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}
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/**
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Initiate calculation of article id.
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*/
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- (void)calculateArticleID {
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(void)self.articleID;
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}
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/**
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@return MD5 hash of @c feedURL @c + @c guid. Or a combination of properties when guid is not set.
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@note
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In general, feeds should have guids. When they don't, re-runs are very likely,
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because there's no other 100% reliable way to determine identity.
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*/
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- (NSString *)calculatedUniqueID {
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NSAssert(self.feedURL != nil, @"Feed URL should always be set!");
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NSMutableString *s = [NSMutableString stringWithString:self.feedURL];
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if (self.guid.length > 0) {
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[s appendString:self.guid];
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}
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else if (self.datePublished != nil) {
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if (self.link.length > 0) {
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[s appendString:self.link];
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} else if (self.title.length > 0) {
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[s appendString:self.title];
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}
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[s appendString:[NSString stringWithFormat:@"%.0f", self.datePublished.timeIntervalSince1970]];
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}
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else if (self.link.length > 0) {
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[s appendString:self.link];
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}
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else if (self.title.length > 0) {
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[s appendString:self.title];
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}
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else if (self.body.length > 0) {
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[s appendString:self.body];
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}
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return [s rsxml_md5HashString];
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}
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#pragma mark - Printing
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- (NSString*)description {
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return [NSString stringWithFormat:@"{%@ '%@', guid: %@}", [self class], self.title, self.guid];
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}
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@end
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