CCUtility.m 41 KB

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  1. //
  2. // CCUtility.m
  3. // Nextcloud iOS
  4. //
  5. // Created by Marino Faggiana on 02/02/16.
  6. // Copyright (c) 2017 TWS. All rights reserved.
  7. //
  8. // Author Marino Faggiana <m.faggiana@twsweb.it>
  9. //
  10. // This program is free software: you can redistribute it and/or modify
  11. // it under the terms of the GNU General Public License as published by
  12. // the Free Software Foundation, either version 3 of the License, or
  13. // (at your option) any later version.
  14. //
  15. // This program is distributed in the hope that it will be useful,
  16. // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. // GNU General Public License for more details.
  19. //
  20. // You should have received a copy of the GNU General Public License
  21. // along with this program. If not, see <http://www.gnu.org/licenses/>.
  22. //
  23. #import "CCUtility.h"
  24. #import "CCGraphics.h"
  25. #import "NCBridgeSwift.h"
  26. #import <netinet/in.h>
  27. #import <openssl/x509.h>
  28. #import <openssl/bio.h>
  29. #import <openssl/err.h>
  30. #import <openssl/pem.h>
  31. @implementation CCUtility
  32. #pragma --------------------------------------------------------------------------------------------
  33. #pragma mark ======================= KeyChainStore ==================================
  34. #pragma --------------------------------------------------------------------------------------------
  35. + (void)deleteAllChainStore
  36. {
  37. [UICKeyChainStore removeAllItems];
  38. [UICKeyChainStore removeAllItemsForService:k_serviceShareKeyChain];
  39. }
  40. + (void)storeAllChainInService
  41. {
  42. UICKeyChainStore *store = [UICKeyChainStore keyChainStore];
  43. NSArray *items = store.allItems;
  44. for (NSDictionary *item in items) {
  45. [UICKeyChainStore setString:[item objectForKey:@"value"] forKey:[item objectForKey:@"key"] service:k_serviceShareKeyChain];
  46. [UICKeyChainStore removeItemForKey:[item objectForKey:@"key"]];
  47. }
  48. }
  49. #pragma ------------------------------ ADMIN
  50. + (void)adminRemoveIntro
  51. {
  52. NSString *version = [self getVersion];
  53. [UICKeyChainStore setString:nil forKey:version service:k_serviceShareKeyChain];
  54. }
  55. + (void)adminRemovePasscode
  56. {
  57. NSString *uuid = [self getUUID];
  58. [UICKeyChainStore setString:nil forKey:uuid service:k_serviceShareKeyChain];
  59. }
  60. + (void)adminRemoveVersion
  61. {
  62. [UICKeyChainStore setString:@"0.0" forKey:@"version" service:k_serviceShareKeyChain];
  63. }
  64. #pragma ------------------------------ SET
  65. + (void)setKeyChainPasscodeForUUID:(NSString *)uuid conPasscode:(NSString *)passcode
  66. {
  67. [UICKeyChainStore setString:passcode forKey:uuid service:k_serviceShareKeyChain];
  68. }
  69. + (NSString *)setVersion
  70. {
  71. NSString *version = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];
  72. [UICKeyChainStore setString:version forKey:@"version" service:k_serviceShareKeyChain];
  73. return version;
  74. }
  75. + (NSString *)setBuild
  76. {
  77. NSString *build = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleVersion"];
  78. [UICKeyChainStore setString:build forKey:@"build" service:k_serviceShareKeyChain];
  79. return build;
  80. }
  81. + (void)setBlockCode:(NSString *)blockcode
  82. {
  83. [UICKeyChainStore setString:blockcode forKey:@"blockcode" service:k_serviceShareKeyChain];
  84. }
  85. + (void)setSimplyBlockCode:(BOOL)simply
  86. {
  87. NSString *sSimply = (simply) ? @"true" : @"false";
  88. [UICKeyChainStore setString:sSimply forKey:@"simplyblockcode" service:k_serviceShareKeyChain];
  89. }
  90. + (void)setOnlyLockDir:(BOOL)lockDir
  91. {
  92. NSString *sLockDir = (lockDir) ? @"true" : @"false";
  93. [UICKeyChainStore setString:sLockDir forKey:@"onlylockdir" service:k_serviceShareKeyChain];
  94. }
  95. + (void)setOptimizedPhoto:(BOOL)resize
  96. {
  97. NSString *sOptimizedPhoto = (resize) ? @"true" : @"false";
  98. [UICKeyChainStore setString:sOptimizedPhoto forKey:@"optimizedphoto" service:k_serviceShareKeyChain];
  99. }
  100. + (void)setUploadAndRemovePhoto:(BOOL)remove
  101. {
  102. NSString *sRemovePhoto = (remove) ? @"true" : @"false";
  103. [UICKeyChainStore setString:sRemovePhoto forKey:@"uploadremovephoto" service:k_serviceShareKeyChain];
  104. }
  105. + (void)setOrderSettings:(NSString *)order
  106. {
  107. [UICKeyChainStore setString:order forKey:@"order" service:k_serviceShareKeyChain];
  108. }
  109. + (void)setAscendingSettings:(BOOL)ascendente
  110. {
  111. NSString *sAscendente = (ascendente) ? @"true" : @"false";
  112. [UICKeyChainStore setString:sAscendente forKey:@"ascending" service:k_serviceShareKeyChain];
  113. }
  114. + (void)setGroupBySettings:(NSString *)groupby
  115. {
  116. [UICKeyChainStore setString:groupby forKey:@"groupby" service:k_serviceShareKeyChain];
  117. }
  118. + (void)setIntro:(NSString *)version
  119. {
  120. [UICKeyChainStore setString:@"true" forKey:version service:k_serviceShareKeyChain];
  121. }
  122. + (void)setActiveAccountExt:(NSString *)activeAccount
  123. {
  124. [UICKeyChainStore setString:activeAccount forKey:@"activeAccountExt" service:k_serviceShareKeyChain];
  125. }
  126. + (void)setServerUrlExt:(NSString *)serverUrl
  127. {
  128. [UICKeyChainStore setString:serverUrl forKey:@"serverUrlExt" service:k_serviceShareKeyChain];
  129. }
  130. + (void)setTitleServerUrlExt:(NSString *)titleServerUrl
  131. {
  132. [UICKeyChainStore setString:titleServerUrl forKey:@"titleServerUrlExt" service:k_serviceShareKeyChain];
  133. }
  134. + (void)setFileNameExt:(NSString *)fileName
  135. {
  136. [UICKeyChainStore setString:fileName forKey:@"fileNameExt" service:k_serviceShareKeyChain];
  137. }
  138. + (void)setEmail:(NSString *)email
  139. {
  140. [UICKeyChainStore setString:email forKey:@"email" service:k_serviceShareKeyChain];
  141. }
  142. + (void)setHint:(NSString *)hint
  143. {
  144. [UICKeyChainStore setString:hint forKey:@"hint" service:k_serviceShareKeyChain];
  145. }
  146. + (void)setDirectoryOnTop:(BOOL)directoryOnTop
  147. {
  148. NSString *sDirectoryOnTop = (directoryOnTop) ? @"true" : @"false";
  149. [UICKeyChainStore setString:sDirectoryOnTop forKey:@"directoryOnTop" service:k_serviceShareKeyChain];
  150. }
  151. + (void)setFileNameMask:(NSString *)mask key:(NSString *)key
  152. {
  153. [UICKeyChainStore setString:mask forKey:key service:k_serviceShareKeyChain];
  154. }
  155. + (void)setFileNameType:(BOOL)prefix key:(NSString *)key
  156. {
  157. NSString *sPrefix = (prefix) ? @"true" : @"false";
  158. [UICKeyChainStore setString:sPrefix forKey:key service:k_serviceShareKeyChain];
  159. }
  160. + (void)setCreateMenuEncrypted:(BOOL)encrypted
  161. {
  162. NSString *sEncrypted = (encrypted) ? @"true" : @"false";
  163. [UICKeyChainStore setString:sEncrypted forKey:@"createMenuEncrypted" service:k_serviceShareKeyChain];
  164. }
  165. + (void)setFavoriteOffline:(BOOL)offline
  166. {
  167. NSString *sFavoriteOffline = (offline) ? @"true" : @"false";
  168. [UICKeyChainStore setString:sFavoriteOffline forKey:@"favoriteOffline" service:k_serviceShareKeyChain];
  169. }
  170. + (void)setActivityVerboseHigh:(BOOL)high
  171. {
  172. NSString *sHigh = (high) ? @"true" : @"false";
  173. [UICKeyChainStore setString:sHigh forKey:@"activityVerboseHigh" service:k_serviceShareKeyChain];
  174. }
  175. + (void)setShowHiddenFiles:(BOOL)show
  176. {
  177. NSString *sShow = (show) ? @"true" : @"false";
  178. [UICKeyChainStore setString:sShow forKey:@"showHiddenFiles" service:k_serviceShareKeyChain];
  179. }
  180. #pragma ------------------------------ GET
  181. + (NSString *)getKeyChainPasscodeForUUID:(NSString *)uuid
  182. {
  183. if (!uuid) return @"";
  184. NSString *passcode = [UICKeyChainStore stringForKey:uuid service:k_serviceShareKeyChain];
  185. if (!passcode)
  186. passcode = @"";
  187. return passcode;
  188. }
  189. + (NSString *)getUUID
  190. {
  191. #if TARGET_IPHONE_SIMULATOR
  192. NSUUID *deviceId = [[NSUUID alloc]initWithUUIDString:k_UUID_SIM];
  193. return [deviceId UUIDString];
  194. #else
  195. NSString *uuid = [[UIDevice currentDevice] identifierForVendor].UUIDString;
  196. return uuid;
  197. #endif
  198. }
  199. + (NSString *)getVersion
  200. {
  201. return [UICKeyChainStore stringForKey:@"version" service:k_serviceShareKeyChain];
  202. }
  203. + (NSString *)getBuild
  204. {
  205. return [UICKeyChainStore stringForKey:@"build" service:k_serviceShareKeyChain];
  206. }
  207. + (NSString *)getBlockCode
  208. {
  209. return [UICKeyChainStore stringForKey:@"blockcode" service:k_serviceShareKeyChain];
  210. }
  211. + (BOOL)getSimplyBlockCode
  212. {
  213. NSString *simplyBlockCode = [UICKeyChainStore stringForKey:@"simplyblockcode" service:k_serviceShareKeyChain];
  214. if (simplyBlockCode == nil) {
  215. [self setSimplyBlockCode:YES];
  216. return YES;
  217. }
  218. return [simplyBlockCode boolValue];
  219. }
  220. + (BOOL)getOnlyLockDir
  221. {
  222. return [[UICKeyChainStore stringForKey:@"onlylockdir" service:k_serviceShareKeyChain] boolValue];
  223. }
  224. + (BOOL)getOptimizedPhoto
  225. {
  226. return [[UICKeyChainStore stringForKey:@"optimizedphoto" service:k_serviceShareKeyChain] boolValue];
  227. }
  228. + (BOOL)getUploadAndRemovePhoto
  229. {
  230. return [[UICKeyChainStore stringForKey:@"uploadremovephoto" service:k_serviceShareKeyChain] boolValue];
  231. }
  232. + (NSString *)getOrderSettings
  233. {
  234. NSString *order = [UICKeyChainStore stringForKey:@"order" service:k_serviceShareKeyChain];
  235. if (order == nil) {
  236. [self setOrderSettings:@"fileName"];
  237. return @"fileName";
  238. }
  239. return order;
  240. }
  241. + (BOOL)getAscendingSettings
  242. {
  243. NSString *ascending = [UICKeyChainStore stringForKey:@"ascending" service:k_serviceShareKeyChain];
  244. if (ascending == nil) {
  245. [self setAscendingSettings:YES];
  246. return YES;
  247. }
  248. return [ascending boolValue];
  249. }
  250. + (NSString *)getGroupBySettings
  251. {
  252. NSString *groupby = [UICKeyChainStore stringForKey:@"groupby" service:k_serviceShareKeyChain];
  253. if (groupby == nil) {
  254. [self setGroupBySettings:@"none"];
  255. return @"none";
  256. }
  257. return groupby;
  258. }
  259. + (BOOL)getIntro:(NSString *)version
  260. {
  261. return [[UICKeyChainStore stringForKey:version service:k_serviceShareKeyChain] boolValue];
  262. }
  263. + (NSString *)getIncrementalNumber
  264. {
  265. long number = [[UICKeyChainStore stringForKey:@"incrementalnumber" service:k_serviceShareKeyChain] intValue];
  266. number++;
  267. if (number >= 9999) number = 1;
  268. [UICKeyChainStore setString:[NSString stringWithFormat:@"%ld", number] forKey:@"incrementalnumber"];
  269. return [NSString stringWithFormat:@"%04ld", number];
  270. }
  271. + (NSString *)getActiveAccountExt
  272. {
  273. return [UICKeyChainStore stringForKey:@"activeAccountExt" service:k_serviceShareKeyChain];
  274. }
  275. + (NSString *)getServerUrlExt
  276. {
  277. return [UICKeyChainStore stringForKey:@"serverUrlExt" service:k_serviceShareKeyChain];
  278. }
  279. + (NSString *)getTitleServerUrlExt
  280. {
  281. return [UICKeyChainStore stringForKey:@"titleServerUrlExt" service:k_serviceShareKeyChain];
  282. }
  283. + (NSString *)getFileNameExt
  284. {
  285. return [UICKeyChainStore stringForKey:@"fileNameExt" service:k_serviceShareKeyChain];
  286. }
  287. + (NSString *)getEmail
  288. {
  289. return [UICKeyChainStore stringForKey:@"email" service:k_serviceShareKeyChain];
  290. }
  291. + (NSString *)getHint
  292. {
  293. return [UICKeyChainStore stringForKey:@"hint" service:k_serviceShareKeyChain];
  294. }
  295. + (BOOL)getDirectoryOnTop
  296. {
  297. return [[UICKeyChainStore stringForKey:@"directoryOnTop" service:k_serviceShareKeyChain] boolValue];
  298. }
  299. + (NSString *)getFileNameMask:(NSString *)key
  300. {
  301. NSString *mask = [UICKeyChainStore stringForKey:key service:k_serviceShareKeyChain];
  302. if (mask == nil)
  303. mask = @"";
  304. return mask;
  305. }
  306. + (BOOL)getFileNameType:(NSString *)key
  307. {
  308. return [[UICKeyChainStore stringForKey:key service:k_serviceShareKeyChain] boolValue];
  309. }
  310. + (BOOL)getCreateMenuEncrypted
  311. {
  312. return [[UICKeyChainStore stringForKey:@"createMenuEncrypted" service:k_serviceShareKeyChain] boolValue];
  313. }
  314. + (BOOL)getFavoriteOffline
  315. {
  316. return [[UICKeyChainStore stringForKey:@"favoriteOffline" service:k_serviceShareKeyChain] boolValue];
  317. }
  318. + (BOOL)getActivityVerboseHigh
  319. {
  320. return [[UICKeyChainStore stringForKey:@"activityVerboseHigh" service:k_serviceShareKeyChain] boolValue];
  321. }
  322. + (BOOL)getShowHiddenFiles
  323. {
  324. return [[UICKeyChainStore stringForKey:@"showHiddenFiles" service:k_serviceShareKeyChain] boolValue];
  325. }
  326. #pragma --------------------------------------------------------------------------------------------
  327. #pragma mark ===== Varius =====
  328. #pragma --------------------------------------------------------------------------------------------
  329. + (NSString *)getUserAgent
  330. {
  331. NSString *appVersion = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];
  332. return [NSString stringWithFormat:@"%@%@",@"Mozilla/5.0 (iOS) Nextcloud-iOS/",appVersion];
  333. }
  334. + (NSString *)dateDiff:(NSDate *) convertedDate
  335. {
  336. NSDateFormatter *df = [[NSDateFormatter alloc] init];
  337. [df setFormatterBehavior:NSDateFormatterBehavior10_4];
  338. [df setDateFormat:@"EEE, dd MMM yy HH:mm:ss VVVV"];
  339. //NSDate *convertedDate = [df dateFromString:origDate];
  340. //NSDate *convertedDate = [NSDate dateWithTimeIntervalSince1970:origDate];
  341. NSDate *todayDate = [NSDate date];
  342. double ti = [convertedDate timeIntervalSinceDate:todayDate];
  343. ti = ti * -1;
  344. if (ti < 60) {
  345. return NSLocalizedString(@"_less_a_minute_", nil);
  346. } else if (ti < 3600) {
  347. int diff = round(ti / 60);
  348. return [NSString stringWithFormat:NSLocalizedString(@"_minutes_ago_", nil), diff];
  349. } else if (ti < 86400) {
  350. int diff = round(ti / 60 / 60);
  351. return[NSString stringWithFormat:NSLocalizedString(@"_hours_ago_", nil), diff];
  352. } else if (ti < 2629743) {
  353. int diff = round(ti / 60 / 60 / 24);
  354. return[NSString stringWithFormat:NSLocalizedString(@"_days_ago_", nil), diff];
  355. } else {
  356. return NSLocalizedString(@"_over_30_days_", nil);
  357. }
  358. }
  359. + (NSDate *)dateEnUsPosixFromCloud:(NSString *)dateString
  360. {
  361. NSDate *date = [NSDate date];
  362. NSError *error;
  363. NSDateFormatter *dateFormatter = [NSDateFormatter new];
  364. NSLocale *enUSPOSIXLocale = [NSLocale localeWithLocaleIdentifier:@"en_US_POSIX"];
  365. [dateFormatter setLocale:enUSPOSIXLocale];
  366. [dateFormatter setDateFormat:@"EEE, dd MMM y HH:mm:ss zzz"];
  367. if (![dateFormatter getObjectValue:&date forString:dateString range:nil error:&error]) {
  368. NSLog(@"Date '%@' could not be parsed: %@", dateString, error);
  369. date = [NSDate date];
  370. }
  371. return date;
  372. }
  373. + (NSString *)transformedSize:(double)value
  374. {
  375. int multiplyFactor = 0;
  376. NSArray *tokens = [NSArray arrayWithObjects:@"bytes",@"KB",@"MB",@"GB",@"TB",nil];
  377. while (value > 1024) {
  378. value /= 1024;
  379. multiplyFactor++;
  380. }
  381. return [NSString stringWithFormat:@"%4.2f %@",value, [tokens objectAtIndex:multiplyFactor]];
  382. }
  383. // Remove do not forbidden characters for Nextcloud Server
  384. + (NSString *)removeForbiddenCharactersServer:(NSString *)fileName
  385. {
  386. NSArray *arrayForbiddenCharacters = [NSArray arrayWithObjects:@"/", nil];
  387. for (NSString *currentCharacter in arrayForbiddenCharacters) {
  388. fileName = [fileName stringByReplacingOccurrencesOfString:currentCharacter withString:@""];
  389. }
  390. return fileName;
  391. }
  392. // Remove do not forbidden characters for File System Server
  393. + (NSString *)removeForbiddenCharactersFileSystem:(NSString *)fileName
  394. {
  395. NSArray *arrayForbiddenCharacters = [NSArray arrayWithObjects:@"\\",@"<",@">",@":",@"\"",@"|",@"?",@"*",@"/", nil];
  396. for (NSString *currentCharacter in arrayForbiddenCharacters) {
  397. fileName = [fileName stringByReplacingOccurrencesOfString:currentCharacter withString:@""];
  398. }
  399. return fileName;
  400. }
  401. + (NSString*)stringAppendServerUrl:(NSString *)serverUrl addFileName:(NSString *)addFileName
  402. {
  403. NSString *result;
  404. if (serverUrl == nil || addFileName == nil) return nil;
  405. if ([addFileName isEqualToString:@""]) return serverUrl;
  406. if ([serverUrl isEqualToString:@"/"]) result = [serverUrl stringByAppendingString:addFileName];
  407. else result = [NSString stringWithFormat:@"%@/%@", serverUrl, addFileName];
  408. return result;
  409. }
  410. + (NSString *)createRandomString:(int)numChars
  411. {
  412. NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
  413. NSMutableString *randomString = [NSMutableString stringWithCapacity: numChars];
  414. for (int i=0; i < numChars; i++) {
  415. [randomString appendFormat: @"%C", [letters characterAtIndex: arc4random_uniform((unsigned int)[letters length]) % [letters length]]];
  416. }
  417. return [NSString stringWithFormat:@"%@", randomString];
  418. }
  419. + (NSString *)createFileName:fileName fileDate:(NSDate *)fileDate fileType:(PHAssetMediaType)fileType keyFileName:(NSString *)keyFileName keyFileNameType:(NSString *)keyFileNameType
  420. {
  421. BOOL addFileNameType = NO;
  422. NSString *numberFileName;
  423. if ([fileName length] > 8) numberFileName = [fileName substringWithRange:NSMakeRange(04, 04)];
  424. else numberFileName = [CCUtility getIncrementalNumber];
  425. NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
  426. [formatter setDateFormat:@"yy-MM-dd HH-mm-ss"];
  427. NSString *fileNameDate = [formatter stringFromDate:fileDate];
  428. NSString *fileNameType = @"";
  429. if (fileType == PHAssetMediaTypeImage)
  430. fileNameType = NSLocalizedString(@"_photo_", nil);
  431. if (fileType == PHAssetMediaTypeVideo)
  432. fileNameType = NSLocalizedString(@"_video_", nil);
  433. if (fileType == PHAssetMediaTypeAudio)
  434. fileNameType = NSLocalizedString(@"_audio_", nil);
  435. if (fileType == PHAssetMediaTypeUnknown)
  436. fileNameType = NSLocalizedString(@"_unknown_", nil);
  437. // Use File Name Type
  438. if (keyFileNameType)
  439. addFileNameType = [CCUtility getFileNameType:keyFileNameType];
  440. NSString *fileNameExt = [[fileName pathExtension] lowercaseString];
  441. if (keyFileName) {
  442. fileName = [CCUtility getFileNameMask:keyFileName];
  443. if ([fileName length] > 0) {
  444. [formatter setDateFormat:@"dd"];
  445. NSString *dayNumber = [formatter stringFromDate:fileDate];
  446. [formatter setDateFormat:@"MMM"];
  447. NSString *month = [formatter stringFromDate:fileDate];
  448. [formatter setDateFormat:@"MM"];
  449. NSString *monthNumber = [formatter stringFromDate:fileDate];
  450. [formatter setDateFormat:@"yyyy"];
  451. NSString *year = [formatter stringFromDate:fileDate];
  452. [formatter setDateFormat:@"yy"];
  453. NSString *yearNumber = [formatter stringFromDate:fileDate];
  454. [formatter setDateFormat:@"HH"];
  455. NSString *hour24 = [formatter stringFromDate:fileDate];
  456. [formatter setDateFormat:@"hh"];
  457. NSString *hour12 = [formatter stringFromDate:fileDate];
  458. [formatter setDateFormat:@"mm"];
  459. NSString *minute = [formatter stringFromDate:fileDate];
  460. [formatter setDateFormat:@"ss"];
  461. NSString *second = [formatter stringFromDate:fileDate];
  462. [formatter setDateFormat:@"a"];
  463. NSString *ampm = [formatter stringFromDate:fileDate];
  464. // Replace string with date
  465. fileName = [fileName stringByReplacingOccurrencesOfString:@"DD" withString:dayNumber];
  466. fileName = [fileName stringByReplacingOccurrencesOfString:@"MMM" withString:month];
  467. fileName = [fileName stringByReplacingOccurrencesOfString:@"MM" withString:monthNumber];
  468. fileName = [fileName stringByReplacingOccurrencesOfString:@"YYYY" withString:year];
  469. fileName = [fileName stringByReplacingOccurrencesOfString:@"YY" withString:yearNumber];
  470. fileName = [fileName stringByReplacingOccurrencesOfString:@"HH" withString:hour24];
  471. fileName = [fileName stringByReplacingOccurrencesOfString:@"hh" withString:hour12];
  472. fileName = [fileName stringByReplacingOccurrencesOfString:@"mm" withString:minute];
  473. fileName = [fileName stringByReplacingOccurrencesOfString:@"ss" withString:second];
  474. fileName = [fileName stringByReplacingOccurrencesOfString:@"ampm" withString:ampm];
  475. if (addFileNameType)
  476. fileName = [NSString stringWithFormat:@"%@ %@-%@.%@", fileNameType, fileName, numberFileName, fileNameExt];
  477. else
  478. fileName = [NSString stringWithFormat:@"%@-%@.%@", fileName, numberFileName, fileNameExt];
  479. } else {
  480. if (addFileNameType)
  481. fileName = [NSString stringWithFormat:@"%@ %@ %@.%@", fileNameType, fileNameDate, numberFileName, fileNameExt];
  482. else
  483. fileName = [NSString stringWithFormat:@"%@ %@.%@", fileNameDate, numberFileName, fileNameExt];
  484. }
  485. } else {
  486. if (addFileNameType)
  487. fileName = [NSString stringWithFormat:@"%@ %@ %@.%@", fileNameType, fileNameDate, numberFileName, fileNameExt];
  488. else
  489. fileName = [NSString stringWithFormat:@"%@ %@.%@", fileNameDate, numberFileName, fileNameExt];
  490. }
  491. return fileName;
  492. }
  493. + (NSString *)getHomeServerUrlActiveUrl:(NSString *)activeUrl
  494. {
  495. if (activeUrl == nil) return nil;
  496. return [activeUrl stringByAppendingString:webDAV];
  497. }
  498. // Return path of User
  499. + (NSString *)getDirectoryActiveUser:(NSString *)activeUser activeUrl:(NSString *)activeUrl
  500. {
  501. NSURL *dirGroup = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:[NCBrandOptions sharedInstance].capabilitiesGroups];
  502. NSString *user = activeUser;
  503. NSString *baseUrl = [activeUrl lowercaseString];
  504. NSString *dirUserBaseUrl = nil;
  505. NSString *dirApplicationUserGroup = nil;
  506. if ([user length] && [baseUrl length]) {
  507. if ([baseUrl hasPrefix:@"https://"]) baseUrl = [baseUrl substringFromIndex:8];
  508. if ([baseUrl hasPrefix:@"http://"]) baseUrl = [baseUrl substringFromIndex:7];
  509. dirUserBaseUrl = [NSString stringWithFormat:@"%@-%@", user, baseUrl];
  510. dirUserBaseUrl = [[self removeForbiddenCharactersFileSystem:dirUserBaseUrl] lowercaseString];
  511. } else return @"";
  512. dirApplicationUserGroup = [[dirGroup URLByAppendingPathComponent:appApplicationSupport] path];
  513. dirUserBaseUrl = [NSString stringWithFormat:@"%@/%@", dirApplicationUserGroup, dirUserBaseUrl];
  514. if (![[NSFileManager defaultManager] fileExistsAtPath: dirUserBaseUrl]) {
  515. [[NSFileManager defaultManager] createDirectoryAtPath:dirUserBaseUrl withIntermediateDirectories:YES attributes:nil error:nil];
  516. }
  517. return dirUserBaseUrl;
  518. }
  519. + (NSString *)getOLDDirectoryActiveUser:(NSString *)activeUser activeUrl:(NSString *)activeUrl
  520. {
  521. NSString *user = activeUser;
  522. NSString *baseUrl = [activeUrl lowercaseString];
  523. NSString *dirUserBaseUrl = nil;
  524. if ([user length] && [baseUrl length]) {
  525. if ([baseUrl hasPrefix:@"https://"]) baseUrl = [baseUrl substringFromIndex:8];
  526. if ([baseUrl hasPrefix:@"http://"]) baseUrl = [baseUrl substringFromIndex:7];
  527. dirUserBaseUrl = [NSString stringWithFormat:@"%@-%@", user, baseUrl];
  528. dirUserBaseUrl = [[self removeForbiddenCharactersFileSystem:dirUserBaseUrl] lowercaseString];
  529. } else return @"";
  530. NSArray *paths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);
  531. dirUserBaseUrl = [NSString stringWithFormat:@"%@/%@", [paths objectAtIndex:0], dirUserBaseUrl];
  532. return dirUserBaseUrl;
  533. }
  534. // Return the path of directory Local -> NSDocumentDirectory
  535. + (NSString *)getDirectoryLocal
  536. {
  537. NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
  538. return [paths objectAtIndex:0];
  539. }
  540. // Return the path of directory Audio
  541. + (NSString *)getDirectoryAudio
  542. {
  543. NSArray *paths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);
  544. return [NSString stringWithFormat:@"%@/%@", [paths objectAtIndex:0], @"audio"];
  545. }
  546. // Return the path of directory Cetificates
  547. + (NSString *)getDirectoryCerificates
  548. {
  549. NSURL *dirGroup = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:[NCBrandOptions sharedInstance].capabilitiesGroups];
  550. NSString *dir = [[dirGroup URLByAppendingPathComponent:appCertificates] path];
  551. if (![[NSFileManager defaultManager] fileExistsAtPath:dir])
  552. [[NSFileManager defaultManager] createDirectoryAtPath:dir withIntermediateDirectories:YES attributes:nil error:nil];
  553. return dir;
  554. }
  555. + (NSString *)getTitleSectionDate:(NSDate *)date
  556. {
  557. NSString * title;
  558. if ([date isEqualToDate:[CCUtility datetimeWithOutTime:[NSDate distantPast]]]) {
  559. title = NSLocalizedString(@"_no_date_", nil);
  560. } else {
  561. title = [NSDateFormatter localizedStringFromDate:date dateStyle:NSDateFormatterFullStyle timeStyle:0];
  562. if ([date isEqualToDate:[CCUtility datetimeWithOutTime:[NSDate date]]])
  563. title = [NSString stringWithFormat:NSLocalizedString(@"_today_", nil)];
  564. }
  565. return title;
  566. }
  567. + (void)moveFileAtPath:(NSString *)atPath toPath:(NSString *)toPath
  568. {
  569. if ([[NSFileManager defaultManager] fileExistsAtPath:atPath]) {
  570. [[NSFileManager defaultManager] removeItemAtPath:toPath error:nil];
  571. [[NSFileManager defaultManager] copyItemAtPath:atPath toPath:toPath error:nil];
  572. [[NSFileManager defaultManager] removeItemAtPath:atPath error:nil];
  573. }
  574. }
  575. + (void)copyFileAtPath:(NSString *)atPath toPath:(NSString *)toPath
  576. {
  577. if ([[NSFileManager defaultManager] fileExistsAtPath:atPath]) {
  578. [[NSFileManager defaultManager] removeItemAtPath:toPath error:nil];
  579. [[NSFileManager defaultManager] copyItemAtPath:atPath toPath:toPath error:nil];
  580. }
  581. }
  582. + (void)removeAllFileID_UPLOAD_ActiveUser:(NSString *)activeUser activeUrl:(NSString *)activeUrl
  583. {
  584. NSString *file;
  585. NSString *dir;
  586. dir = [self getDirectoryActiveUser:activeUser activeUrl:activeUrl];
  587. NSDirectoryEnumerator *enumerator = [[NSFileManager defaultManager] enumeratorAtPath:dir];
  588. while (file = [enumerator nextObject]) {
  589. if ([file rangeOfString:@"ID_UPLOAD_"].location != NSNotFound)
  590. [[NSFileManager defaultManager] removeItemAtPath:[NSString stringWithFormat:@"%@/%@", dir, file] error:nil];
  591. }
  592. }
  593. + (NSString *)deletingLastPathComponentFromServerUrl:(NSString *)serverUrl
  594. {
  595. //NSURL *url = [[NSURL URLWithString:[serverUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]] URLByDeletingLastPathComponent]; DEPRECATED iOS9
  596. NSURL *url = [[NSURL URLWithString:[serverUrl stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLFragmentAllowedCharacterSet]]] URLByDeletingLastPathComponent];
  597. NSString *pather = [[url absoluteString] stringByRemovingPercentEncoding];
  598. return [pather substringToIndex: [pather length] - 1];
  599. }
  600. + (NSString *)returnFileNamePathFromFileName:(NSString *)metadataFileName serverUrl:(NSString *)serverUrl activeUrl:(NSString *)activeUrl
  601. {
  602. NSString *fileName = [NSString stringWithFormat:@"%@/%@", [serverUrl stringByReplacingOccurrencesOfString:[CCUtility getHomeServerUrlActiveUrl:activeUrl] withString:@""], metadataFileName];
  603. if ([fileName hasPrefix:@"/"]) fileName = [fileName substringFromIndex:1];
  604. return fileName;
  605. }
  606. + (void)sendMailEncryptPass:(NSString *)recipient validateEmail:(BOOL)validateEmail form:(id)form nameImage:(NSString *)nameImage
  607. {
  608. BOOL error = NO;
  609. if (validateEmail)
  610. error = ![self isValidEmail:recipient];
  611. if (!error)
  612. error = ![MFMailComposeViewController canSendMail];
  613. if (!error) {
  614. NSString *key = [CCUtility getKeyChainPasscodeForUUID:[CCUtility getUUID]];
  615. MFMailComposeViewController *mc = [[MFMailComposeViewController alloc] init];
  616. mc.mailComposeDelegate = form;
  617. [mc setSubject:NSLocalizedString(@"_title_mail_encryptpass_", nil)];
  618. NSString *htmlMsg =[NSString stringWithFormat:@"<html><body><p>%@ : %@ , %@</p></body></html>", NSLocalizedString(@"_text1_mail_encryptpass_", nil), key, NSLocalizedString(@"_text2_mail_encryptpass_", nil)];
  619. NSData *jpegData = UIImageJPEGRepresentation([UIImage imageNamed:nameImage], 1.0);
  620. [mc addAttachmentData:jpegData mimeType:@"image/jpeg" fileName:@"cryptocloud.png"];
  621. [mc setMessageBody:htmlMsg isHTML:YES];
  622. if ([self isValidEmail:recipient])
  623. [mc setToRecipients:@[recipient]];
  624. [form presentViewController:mc animated:YES completion:NULL];
  625. } else {
  626. UIAlertController * alert= [UIAlertController alertControllerWithTitle:NSLocalizedString(@"_error_", nil) message:NSLocalizedString(@"_mail_not_can_send_mail_", nil) preferredStyle:UIAlertControllerStyleAlert];
  627. UIAlertAction* ok = [UIAlertAction actionWithTitle:NSLocalizedString(@"_ok_", nil) style:UIAlertActionStyleDefault
  628. handler:^(UIAlertAction * action) {
  629. [alert dismissViewControllerAnimated:YES completion:nil];
  630. }];
  631. [alert addAction:ok];
  632. [form presentViewController:alert animated:YES completion:nil];
  633. }
  634. }
  635. + (NSArray *)createNameSubFolder:(PHFetchResult *)alassets
  636. {
  637. NSMutableOrderedSet *datesSubFolder = [NSMutableOrderedSet new];
  638. for (PHAsset *asset in alassets) {
  639. NSDate *assetDate = asset.creationDate;
  640. NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
  641. [formatter setDateFormat:@"yyyy"];
  642. NSString *yearString = [formatter stringFromDate:assetDate];
  643. if (yearString)
  644. [datesSubFolder addObject:yearString];
  645. [formatter setDateFormat:@"MM"];
  646. NSString *monthString = [formatter stringFromDate:assetDate];
  647. monthString = [NSString stringWithFormat:@"%@/%@", yearString, monthString];
  648. if (monthString)
  649. [datesSubFolder addObject:monthString];
  650. }
  651. return (NSArray *)datesSubFolder;
  652. }
  653. #pragma --------------------------------------------------------------------------------------------
  654. #pragma mark ===== CCMetadata =====
  655. #pragma --------------------------------------------------------------------------------------------
  656. + (tableMetadata *)createMetadataWithAccount:(NSString *)account date:(NSDate *)date directory:(BOOL)directory fileID:(NSString *)fileID directoryID:(NSString *)directoryID fileName:(NSString *)fileName etag:(NSString *)etag size:(double)size status:(double)status
  657. {
  658. tableMetadata *metadata = [tableMetadata new];
  659. metadata.account = account;
  660. metadata.date = date;
  661. metadata.directory = directory;
  662. metadata.directoryID = directoryID;
  663. metadata.etag = etag;
  664. metadata.fileID = fileID;
  665. metadata.fileName = fileName;
  666. metadata.size = size;
  667. metadata.status = status;
  668. NSString *serverUrl = [[NCManageDatabase sharedInstance] getServerUrl:directoryID];
  669. NSString *autoUploadFileName = [[NCManageDatabase sharedInstance] getAccountAutoUploadFileName];
  670. NSString *autoUploadDirectory = [[NCManageDatabase sharedInstance] getAccountAutoUploadDirectory:serverUrl];
  671. [self insertTypeFileIconName:metadata serverUrl:serverUrl autoUploadFileName:autoUploadFileName autoUploadDirectory:autoUploadDirectory];
  672. return metadata;
  673. }
  674. + (tableMetadata *)trasformedOCFileToCCMetadata:(OCFileDto *)itemDto fileName:(NSString *)fileName serverUrl:(NSString *)serverUrl directoryID:(NSString *)directoryID autoUploadFileName:(NSString *)autoUploadFileName autoUploadDirectory:(NSString *)autoUploadDirectory activeAccount:(NSString *)activeAccount directoryUser:(NSString *)directoryUser
  675. {
  676. tableMetadata *metadata = [tableMetadata new];
  677. fileName = [CCUtility removeForbiddenCharactersServer:fileName];
  678. metadata.account = activeAccount;
  679. metadata.date = [NSDate dateWithTimeIntervalSince1970:itemDto.date];
  680. metadata.directory = itemDto.isDirectory;
  681. metadata.favorite = itemDto.isFavorite;
  682. metadata.fileID = itemDto.ocId;
  683. metadata.directoryID = directoryID;
  684. metadata.fileName = fileName;
  685. metadata.iconName = @"";
  686. metadata.permissions = itemDto.permissions;
  687. metadata.etag = itemDto.etag;
  688. metadata.size = itemDto.size;
  689. metadata.sessionTaskIdentifier = k_taskIdentifierDone;
  690. metadata.typeFile = @"";
  691. [self insertTypeFileIconName:metadata serverUrl:serverUrl autoUploadFileName:autoUploadFileName autoUploadDirectory:autoUploadDirectory];
  692. return metadata;
  693. }
  694. + (tableMetadata *)insertTypeFileIconName:(tableMetadata *)metadata serverUrl:(NSString *)serverUrl autoUploadFileName:(NSString *)autoUploadFileName autoUploadDirectory:(NSString *)autoUploadDirectory
  695. {
  696. if ([metadata.fileName isEqualToString:@"."]) {
  697. metadata.typeFile = k_metadataTypeFile_unknown;
  698. metadata.iconName = @"file";
  699. } else if (!metadata.directory) {
  700. CFStringRef fileExtension = (__bridge CFStringRef)[metadata.fileName pathExtension];
  701. CFStringRef fileUTI = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, fileExtension, NULL);
  702. NSString *ext = (__bridge NSString *)fileExtension;
  703. ext = ext.uppercaseString;
  704. // thumbnailExists
  705. if([ext isEqualToString:@"JPG"] || [ext isEqualToString:@"PNG"] || [ext isEqualToString:@"JPEG"] || [ext isEqualToString:@"GIF"] || [ext isEqualToString:@"BMP"] || [ext isEqualToString:@"MP3"] || [ext isEqualToString:@"MOV"] || [ext isEqualToString:@"MP4"] || [ext isEqualToString:@"M4V"] || [ext isEqualToString:@"3GP"])
  706. metadata.thumbnailExists = YES;
  707. else
  708. metadata.thumbnailExists = NO;
  709. // Type compress
  710. if (UTTypeConformsTo(fileUTI, kUTTypeZipArchive) && [(__bridge NSString *)fileUTI containsString:@"org.openxmlformats"] == NO && [(__bridge NSString *)fileUTI containsString:@"oasis"] == NO) {
  711. metadata.typeFile = k_metadataTypeFile_compress;
  712. metadata.iconName = @"file_compress";
  713. }
  714. // Type image
  715. else if (UTTypeConformsTo(fileUTI, kUTTypeImage)) {
  716. metadata.typeFile = k_metadataTypeFile_image;
  717. metadata.iconName = @"file_photo";
  718. }
  719. // Type Video
  720. else if (UTTypeConformsTo(fileUTI, kUTTypeMovie)) {
  721. metadata.typeFile = k_metadataTypeFile_video;
  722. metadata.iconName = @"file_movie";
  723. }
  724. // Type Audio
  725. else if (UTTypeConformsTo(fileUTI, kUTTypeAudio)) {
  726. metadata.typeFile = k_metadataTypeFile_audio;
  727. metadata.iconName = @"file_audio";
  728. }
  729. // Type Document [DOC] [PDF] [XLS] [TXT] (RTF = "public.rtf" - ODT = "org.oasis-open.opendocument.text") [MD]
  730. else if (UTTypeConformsTo(fileUTI, kUTTypeContent) || [ext isEqualToString:@"MD"]) {
  731. metadata.typeFile = k_metadataTypeFile_document;
  732. metadata.iconName = @"document";
  733. NSString *typeFile = (__bridge NSString *)fileUTI;
  734. if ([typeFile isEqualToString:@"com.adobe.pdf"]) {
  735. metadata.iconName = @"file_pdf";
  736. }
  737. if ([typeFile isEqualToString:@"org.openxmlformats.spreadsheetml.sheet"]) {
  738. metadata.iconName = @"file_xls";
  739. }
  740. if ([typeFile isEqualToString:@"com.microsoft.excel.xls"]) {
  741. metadata.iconName = @"file_xls";
  742. }
  743. if ([typeFile isEqualToString:@"public.plain-text"] || [ext isEqualToString:@"MD"]) {
  744. metadata.iconName = @"file_txt";
  745. }
  746. if ([typeFile isEqualToString:@"public.html"]) {
  747. metadata.iconName = @"file_code";
  748. }
  749. } else {
  750. // Type unknown
  751. metadata.typeFile = k_metadataTypeFile_unknown;
  752. // icon uTorrent
  753. if ([ext isEqualToString:@"TORRENT"]) {
  754. metadata.iconName = @"utorrent";
  755. } else {
  756. metadata.iconName = @"file";
  757. }
  758. }
  759. if (fileUTI)
  760. CFRelease(fileUTI);
  761. } else {
  762. // icon directory
  763. metadata.typeFile = k_metadataTypeFile_directory;
  764. metadata.iconName = @"folder";
  765. if([metadata.fileName isEqualToString:autoUploadFileName] && [serverUrl isEqualToString:autoUploadDirectory])
  766. metadata.iconName = @"folderphotocamera";
  767. }
  768. return metadata;
  769. }
  770. + (tableMetadata *)insertFileSystemInMetadata:(NSString *)fileName directory:(NSString *)directory activeAccount:(NSString *)activeAccount autoUploadFileName:(NSString *)autoUploadFileName autoUploadDirectory:(NSString *)autoUploadDirectory
  771. {
  772. tableMetadata *metadata = [[tableMetadata alloc] init];
  773. NSString *fileNamePath = [NSString stringWithFormat:@"%@/%@", directory, fileName];
  774. NSDictionary *attributes = [[NSFileManager defaultManager] attributesOfItemAtPath:fileNamePath error:nil];
  775. metadata.account = activeAccount;
  776. metadata.date = attributes[NSFileModificationDate];
  777. BOOL isDirectory;
  778. [[NSFileManager defaultManager] fileExistsAtPath:fileNamePath isDirectory:&isDirectory];
  779. metadata.directory = isDirectory;
  780. metadata.fileID = fileName;
  781. metadata.directoryID = directory;
  782. metadata.fileName = fileName;
  783. metadata.size = [attributes[NSFileSize] longValue];
  784. metadata.thumbnailExists = false;
  785. [self insertTypeFileIconName:metadata serverUrl:directory autoUploadFileName:autoUploadFileName autoUploadDirectory:autoUploadDirectory];
  786. return metadata;
  787. }
  788. #pragma --------------------------------------------------------------------------------------------
  789. #pragma mark ===== Third parts =====
  790. #pragma --------------------------------------------------------------------------------------------
  791. + (NSString *)stringValueForKey:(id)key conDictionary:(NSDictionary *)dictionary
  792. {
  793. id obj = [dictionary objectForKey:key];
  794. if ([obj isEqual:[NSNull null]]) return @"";
  795. if ([obj isKindOfClass:[NSString class]]) {
  796. return obj;
  797. }
  798. else if ([obj isKindOfClass:[NSNumber class]]) {
  799. return [obj stringValue];
  800. }
  801. else {
  802. return [obj description];
  803. }
  804. }
  805. + (NSString *)currentDevice
  806. {
  807. struct utsname systemInfo;
  808. uname(&systemInfo);
  809. NSString *deviceName=[NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
  810. //NSLog(@"[LOG] Device Name :%@",deviceName);
  811. return deviceName;
  812. }
  813. + (NSString *)getExtension:(NSString*)fileName
  814. {
  815. NSMutableArray *fileNameArray =[[NSMutableArray alloc] initWithArray: [fileName componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"."]]];
  816. NSString *extension = [NSString stringWithFormat:@"%@",[fileNameArray lastObject]];
  817. extension = [extension uppercaseString];
  818. //If the file has a ZIP extension obtain the previous one for check if it is a .pages.zip / .numbers.zip / .key.zip extension
  819. if ([extension isEqualToString:@"ZIP"]) {
  820. [fileNameArray removeLastObject];
  821. NSString *secondExtension = [NSString stringWithFormat:@"%@",[fileNameArray lastObject]];
  822. secondExtension = [secondExtension uppercaseString];
  823. if ([secondExtension isEqualToString:@"PAGES"] || [secondExtension isEqualToString:@"NUMBERS"] || [secondExtension isEqualToString:@"KEY"]) {
  824. extension = [NSString stringWithFormat:@"%@.%@",secondExtension,extension];
  825. return extension;
  826. }
  827. }
  828. return extension;
  829. }
  830. /*
  831. * Util method to make a NSDate object from a string from xml
  832. * @dateString -> Data string from xml
  833. */
  834. + (NSDate*)parseDateString:(NSString*)dateString
  835. {
  836. //Parse the date in all the formats
  837. NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
  838. /*In most cases the best locale to choose is "en_US_POSIX", a locale that's specifically designed to yield US English results regardless of both user and system preferences. "en_US_POSIX" is also invariant in time (if the US, at some point in the future, changes the way it formats dates, "en_US" will change to reflect the new behaviour, but "en_US_POSIX" will not). It will behave consistently for all users.*/
  839. [dateFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]];
  840. //This is the format for the concret locale used
  841. [dateFormatter setDateFormat:@"EEE, dd MMM y HH:mm:ss zzz"];
  842. NSDate *theDate = nil;
  843. NSError *error = nil;
  844. if (![dateFormatter getObjectValue:&theDate forString:dateString range:nil error:&error]) {
  845. NSLog(@"[LOG] Date '%@' could not be parsed: %@", dateString, error);
  846. }
  847. return theDate;
  848. }
  849. + (NSDate *)datetimeWithOutTime:(NSDate *)datDate
  850. {
  851. if (datDate == nil) return nil;
  852. NSDateComponents* comps = [[NSCalendar currentCalendar] components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay fromDate:datDate];
  853. datDate = [[NSCalendar currentCalendar] dateFromComponents:comps];
  854. return datDate;
  855. }
  856. + (NSDate *)datetimeWithOutDate:(NSDate *)datDate
  857. {
  858. if (datDate == nil) return nil;
  859. NSDateComponents* comps = [[NSCalendar currentCalendar] components:NSCalendarUnitHour|NSCalendarUnitMinute|NSCalendarUnitSecond fromDate:datDate];
  860. return [[NSCalendar currentCalendar] dateFromComponents:comps];
  861. }
  862. + (BOOL)isValidEmail:(NSString *)checkString
  863. {
  864. checkString = [checkString lowercaseString];
  865. BOOL stricterFilter = YES;
  866. NSString *stricterFilterString = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
  867. NSString *laxString = @".+@.+\\.[A-Za-z]{2}[A-Za-z]*";
  868. NSString *emailRegex = stricterFilter ? stricterFilterString : laxString;
  869. NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
  870. return [emailTest evaluateWithObject:checkString];
  871. }
  872. @end