TelDomain.m @ 720

Revision 720, 10.9 kB (checked in by henri, 3 years ago)
Refactored .tel data into a new class

Line
1	//
2	// TelDomain.m
3	// DotTel SDK
4	//
5	// Created by Henri Asseily on 3/17/10.
6	// Copyright 2010 Telnic Limited. All rights reserved.
7	/*
8	Redistribution and use in source and binary forms, with or without modification,
9	are permitted provided that the following conditions are met:
10
11	Redistributions of source code must retain the above copyright notice, this list of conditions
12	and the following disclaimer. Redistributions in binary form must reproduce the above copyright
13	notice, this list of conditions and the following disclaimer in the documentation and/or other
14	materials provided with the distribution.
15	Neither the name of the Telnic Ltd. nor the names of its contributors may be used to endorse or
16	promote products derived from this software without specific prior written permission.
17	THIS DOCUMENTATION IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
18	OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
19	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
20	CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22	DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
23	IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24	OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25	*/
26	//
27
28	#import "TelDomain.h"
29
30	@implementation TelDomain
31
32	@synthesize telName = _telName;
33	@synthesize cleanTelName = _cleanTelName;
34	@synthesize displayName;
35	@synthesize headerText;
36	@synthesize logoUrl = _logoUrl;
37	@synthesize naptrArray;
38	@synthesize txtArray;
39	@synthesize allTxtArray;
40	@synthesize locArray;
41	@synthesize country;
42	@synthesize timeZone;
43	@synthesize geoLocDidFinish;
44	@synthesize delegate;
45
46	#pragma mark -
47	#pragma mark Initializers
48
49	// Don't allow init
50	- (id)init {
51	return nil;
52	}
53
54	// Canonical initializer
55	- (id)initWithTelName:(NSString *)aTelName delegate:(id<TelDomainDelegate>)aDelegate {
56	if ((aTelName == nil) \|\| (aDelegate == nil))
57	return nil;
58	self = [super init];
59	self.delegate = aDelegate;
60	_telName = [[self telFromQueryString:aTelName] retain];
61	_cleanTelName = [[_telName stringByReplacingOccurrencesOfString:@"-"
62	withString:@" "
63	options:NSLiteralSearch
64	range:NSMakeRange(0, [_telName length])] retain];
65	self.displayName = _cleanTelName;
66	_logoUrl = nil;
67	geoLocDidFinish = NO;
68	self.naptrArray = [NSMutableArray arrayWithCapacity:10];
69	self.txtArray = [NSMutableArray arrayWithCapacity:10];
70	self.allTxtArray = [NSMutableArray arrayWithCapacity:20];
71	self.locArray = [NSMutableArray arrayWithCapacity:1];
72	return self;
73	}
74
75	- (void)dealloc {
76	[_telName release];
77	[_cleanTelName release];
78	if (_logoUrl)
79	[_logoUrl release];
80	[super dealloc];
81	}
82
83	#pragma mark -
84	#pragma mark Data Methods
85
86	- (NSError *)getNaptr {
87	NSError *error = nil;
88	[[NetworkUtility sharedInstance] networkwillActivate:YES];
89	DnsResolver *res = [[DnsResolver alloc] init];
90	NSUInteger naptrCount = [res getNAPTRForTel:self.telName inArray:self.naptrArray withError:&error];
91	[res release];
92	if (naptrCount == 0) {
93	#ifdef DEBUG
94	NSLog(@"Warning: Error or No NAPTR records in domain %@", telName);
95	#endif
96	}
97	// extract the logo (take the first one and leave the others as links)
98	RecordNaptr *theRec;
99	for (int i = 0; i < [naptrArray count]; i++) {
100	theRec = [naptrArray objectAtIndex:i];
101	if (([theRec.serviceTypeArray count] > 0) && [[theRec.serviceTypeArray objectAtIndex:0] hasPrefix:@"x-photo:http"]) {
102	if (theRec.uriContent)
103	_logoUrl = [[NSURL URLWithString:theRec.uriContent] retain];
104	[naptrArray removeObjectAtIndex:i];
105	break;
106	}
107	}
108	[[NetworkUtility sharedInstance] networkwillActivate:NO];
109	if ([self.delegate respondsToSelector:@selector(didFinishGettingNaptrWithError:)]) {
110	[self.delegate didFinishGettingNaptrWithError:error];
111	}
112	return error;
113	}
114
115	- (NSError *)getTxt {
116	NSError *error = nil;
117	[[NetworkUtility sharedInstance] networkwillActivate:YES];
118	DnsResolver *res = [[DnsResolver alloc] init];
119	NSUInteger txtCount = [res getTXTForTel:self.telName inArray:allTxtArray withError:&error];
120	if (txtCount == 0) {
121	#ifdef DEBUG
122	NSLog(@"Warning: Error or No TXT records in domain %@", telName);
123	#endif
124	}
125	[[NetworkUtility sharedInstance] networkwillActivate:NO];
126	[res release];
127	// Now build out the keywords txtArray and extract the header, display string and other stuff
128	RecordTxt *theRec;
129	NSMutableString *_headerText = nil;
130	for (theRec in allTxtArray) {
131	if (theRec.subType == RecordTxtSubTypeKeyword) {
132	// It's a keyword, let's add it to the array in the txt section
133	[self.txtArray addObject:theRec];
134	} else if (theRec.subType == RecordTxtSubTypeString) {
135	// simple string, currently a header
136	// Merge all simple strings into a header
137	if (!_headerText) {
138	_headerText = [NSMutableString stringWithString:theRec.textValue];
139	} else {
140	//NSLog(theRec.textValue);
141	[_headerText appendFormat:@"\n%@", theRec.textValue];
142	}
143	} else if (theRec.subType == RecordTxtSubTypeDDS) {
144	// domain display string
145	self.displayName = theRec.textValue;
146	} else {
147	// do nothing with the other records such as ads, just discard them
148	}
149	}
150	if (_headerText)
151	self.headerText = _headerText;
152	else
153	self.headerText = self.displayName;
154	if ([self.delegate respondsToSelector:@selector(didFinishGettingTxtWithError:)]) {
155	[self.delegate didFinishGettingTxtWithError:error];
156	}
157	return error;
158	}
159
160	- (NSError *)getLocWithReverseGeo:(BOOL)revGeo {
161	NSError *error = nil;
162	[[NetworkUtility sharedInstance] networkwillActivate:YES];
163	DnsResolver *res = [[DnsResolver alloc] init];
164	geoLocDidFinish = NO;
165	NSUInteger locCount = [res getLOCForTel:self.telName inArray:self.locArray withError:&error];
166	[res release];
167	[[NetworkUtility sharedInstance] networkwillActivate:NO];
168	if (locCount > 1) {
169	//NSLog(@"Warning: %d LOC records in domain %@", locCount, telName);
170	}
171	if (locCount > 0) {
172	if (revGeo) {
173	// and now look up the timezone and other goodies that take a while because they use the web
174	[[NetworkUtility sharedInstance] networkwillActivate:YES];
175	[self getCountryAndTimeZoneForLoc:(RecordLoc *)[self.locArray objectAtIndex:0]];
176	[[NetworkUtility sharedInstance] networkwillActivate:NO];
177	}
178	}
179	if ([self.delegate respondsToSelector:@selector(didFinishGettingLocWithError:)]) {
180	[self.delegate didFinishGettingLocWithError:error];
181	}
182	return error;
183	}
184
185	- (void)getNaptrAndTxtInBackground {
186	if ([NSThread isMainThread]) {
187	[self performSelectorInBackground:_cmd withObject:nil];
188	return;
189	}
190	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
191	NSError *errorTxt = [self getTxt];
192	NSError *errorNaptr = [self getNaptr];
193	// merge the txt labels into the naptrs
194	DnsResolver *res = [[DnsResolver alloc] init];
195	[res updateNaptrArray:self.naptrArray withTxtArray:self.allTxtArray];
196	[res release];
197	if ([self.delegate respondsToSelector:@selector(didFinishGettingNaptrAndTxtWithError:)]) {
198	if (errorNaptr != nil) {
199	[self.delegate didFinishGettingNaptrAndTxtWithError:errorNaptr];
200	} else {
201	[self.delegate didFinishGettingNaptrAndTxtWithError:errorTxt];
202	}
203	}
204	[pool release];
205	}
206
207	- (void)getLocAndReverseGeoInBackground{
208	if ([NSThread isMainThread]) {
209	[self performSelectorInBackground:_cmd withObject:nil];
210	return;
211	}
212	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
213	[self getLocWithReverseGeo:YES];
214	[pool release];
215	}
216
217	- (void)getLocInBackground{
218	if ([NSThread isMainThread]) {
219	[self performSelectorInBackground:_cmd withObject:nil];
220	return;
221	}
222	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
223	[self getLocWithReverseGeo:NO];
224	[pool release];
225	}
226
227	- (void)getCountryAndTimeZoneForLoc:(CLLocation *)aLoc {
228	// Get country and timezone
229	// Don't get current time because the url may be cached. Use the timezone to regenerate the current time
230	NSString *uS = [NSString stringWithFormat:@"http://ws.geonames.org/timezone?lat=%f&lng=%f",
231	aLoc.coordinate.latitude, aLoc.coordinate.longitude];
232	NSURL *url = [NSURL URLWithString:uS];
233	NSURLRequest *urlReq = [NSURLRequest requestWithURL:url
234	cachePolicy:NSURLRequestReturnCacheDataElseLoad
235	timeoutInterval:60.0];
236	NSHTTPURLResponse *response = [[[NSHTTPURLResponse alloc]
237	initWithURL:url
238	MIMEType:@"text/xml"
239	expectedContentLength:1024
240	textEncodingName:nil] autorelease];
241	NSError *error;
242	NSData *tzData = [NSURLConnection sendSynchronousRequest:urlReq
243	returningResponse:&response
244	error:&error];
245	if (tzData) {
246	// Got data
247	NSString *sData = [[NSString alloc] initWithData:tzData encoding:NSUTF8StringEncoding];
248	// Now get country
249	NSRange rC1 = [sData rangeOfString:@"<countryName>"];
250	if (rC1.location != NSNotFound) {
251	NSRange rC2 = [sData rangeOfString:@"</countryName>"];
252	if (rC2.location != NSNotFound) {
253	NSRange rC = NSMakeRange(rC1.location+rC1.length, rC2.location - (rC1.location+rC1.length));
254	self.country = [sData substringWithRange:rC];
255	}
256	}
257	// And get timezone
258	NSRange rTZ1 = [sData rangeOfString:@"<timezoneId>"];
259	if (rTZ1.location != NSNotFound) {
260	NSRange rTZ2 = [sData rangeOfString:@"</timezoneId>"];
261	if (rTZ2.location != NSNotFound) {
262	NSRange rTZ = NSMakeRange(rTZ1.location+rTZ1.length, rTZ2.location - (rTZ1.location+rTZ1.length));
263	self.timeZone = [NSTimeZone timeZoneWithName:[sData substringWithRange:rTZ]];
264	}
265	}
266	[sData release];
267	}
268	geoLocDidFinish = YES;
269	}
270
271
272	#pragma mark -
273	#pragma mark Utility Methods
274
275	- (NSString )telFromQueryString:(NSString )query {
276	if (!query)
277	return nil;
278	NSMutableString *qry = [NSMutableString stringWithString:query];
279	if ([qry length] == 0)
280	return nil;
281	if ([qry hasPrefix:@"http://"]) {
282	[qry deleteCharactersInRange:NSMakeRange(0, [@"http://" length])];
283	} else if ([qry hasPrefix:@"https://"]) {
284	[qry deleteCharactersInRange:NSMakeRange(0, [@"https://" length])];
285	}
286	if ([qry hasPrefix:@"www."]) {
287	[qry deleteCharactersInRange:NSMakeRange(0, [@"www." length])];
288	}
289	if ([qry hasPrefix:@"+"]) {
290	// Check if it's a phone number, try the sip version
291	BOOL isValidNumber = YES;
292	NSMutableString *enumStr = [NSMutableString stringWithCapacity:30];
293	NSRange prefixR = NSMakeRange(0, 0);
294	for (int i = 1; i < [qry length]; i++) {
295	unichar aChar = [qry characterAtIndex:i];
296	if ((aChar < 47) \|\| (aChar > 58)) { // Not in range of Unicode digits 0-9
297	isValidNumber = NO;
298	break;
299	}
300	[enumStr replaceCharactersInRange:prefixR withString:[NSString stringWithFormat:@"%c.", aChar]];
301	}
302	if (isValidNumber) {
303	[enumStr appendString:@"e164.arpa"];
304	qry = enumStr;
305	}
306	} else if ([qry hasSuffix:@".tel"]) {
307	// .tel domain, do nothing
308	} else if ([qry hasSuffix:@".e164.arpa"]) {
309	// ENUM domain, let's add support for it, why not!
310	// Superbook will be the best ENUM client too! :)
311	} else {
312	qry = [NSString stringWithFormat:@"%@.tel", qry];
313	}
314	return qry;
315	}
316
317	@end

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