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Stripe.m
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Stripe.m
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#import "Stripe.h"
@interface StripeCard ()
@property (readonly) NSDictionary *attributes;
@property (strong, readwrite) NSString *country;
@property (strong, readwrite) NSString *cvcCheck;
@property (strong, readwrite) NSString *lastFourDigits;
@property (strong, readwrite) NSString *type;
@end
@interface StripeConnection ()
@property (strong, nonatomic) NSString *publishableKey;
@end
@implementation StripeConnection
@synthesize publishableKey = _publishableKey;
+ (StripeConnection *)connectionWithPublishableKey:(NSString *)publishableKey {
return [[self alloc] initWithPublishableKey:publishableKey];
}
- (id)initWithPublishableKey:(NSString *)publishableKey {
if ((self = [super init])) {
self.publishableKey = publishableKey;
}
return self;
}
- (NSString *)escapedString:(NSString *)string {
return (__bridge_transfer NSString *)CFURLCreateStringByAddingPercentEscapes(NULL,
(__bridge CFStringRef)string,
NULL,
(CFStringRef)@"!*'();:@&=+$,/?%#[]",
kCFStringEncodingUTF8 );
}
- (NSData *)HTTPBodyWithCard:(StripeCard *)card amountInCents:(NSNumber *)amount currency:(NSString *)currency {
NSMutableString *body = [NSMutableString string];
NSDictionary *attributes = card.attributes;
for (NSString *key in attributes) {
NSString *value = [attributes objectForKey:key];
if ((id)value == [NSNull null]) continue;
if (body.length != 0)
[body appendString:@"&"];
if ([value isKindOfClass:[NSString class]])
value = [self escapedString:value];
[body appendFormat:@"card[%@]=%@", [self escapedString:key], value];
}
if (amount) {
if (body.length != 0)
[body appendString:@"&"];
[body appendFormat:@"amount=%@", amount];
}
if (currency) {
if (body.length != 0)
[body appendString:@"&"];
[body appendFormat:@"currency=%@", currency];
}
return [body dataUsingEncoding:NSUTF8StringEncoding];
}
- (void)performRequestWithCard:(StripeCard *)card amountInCents:(NSNumber *)amount currency:(NSString *)currency success:(void (^)(StripeResponse *response))success error:(void (^)(NSError *error))error {
NSURL *url = [[NSURL URLWithString:
[NSString stringWithFormat:kStripeAPIBase, [self escapedString:self.publishableKey]]]
URLByAppendingPathComponent:kStripeTokenPath];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
request.HTTPBody = [self HTTPBodyWithCard:card amountInCents:amount currency:currency];
[request setHTTPMethod:@"POST"];
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response, NSData *body, NSError *requestError)
{
if (!response && requestError) {
if ([requestError.domain isEqualToString:@"NSURLErrorDomain"] &&
requestError.code == NSURLErrorUserCancelledAuthentication) {
error([NSError errorWithDomain:@"Stripe" code:0 userInfo:
[NSDictionary dictionaryWithObject:@"Authentication failed" forKey:@"message"]]);
} else
error(requestError);
return;
}
NSDictionary *unserialized = [NSJSONSerialization JSONObjectWithData:body options:0 error:NULL];
if ([(NSHTTPURLResponse *)response statusCode] == 200) {
StripeResponse *stripeResponse = [[StripeResponse alloc] initWithResponseDictionary:unserialized];
success(stripeResponse);
} else {
error([NSError errorWithDomain:@"Stripe" code:0 userInfo:[unserialized objectForKey:@"error"]]);
}
}];
}
- (void)performRequestWithCard:(StripeCard *)card amountInCents:(NSNumber *)amount success:(void (^)(StripeResponse *response))success error:(void (^)(NSError *error))error {
[self performRequestWithCard:card amountInCents:amount currency:@"usd" success:success error:error];
}
@end
@implementation StripeCard
@synthesize number, expiryMonth, expiryYear, securityCode, name, addressLine1, addressLine2, addressZip, addressState, addressCountry, country, cvcCheck, lastFourDigits, type;
- (NSDictionary *)attributes {
return [NSDictionary dictionaryWithObjectsAndKeys:
self.number ? self.number : [NSNull null], @"number",
self.expiryMonth ? self.expiryMonth : [NSNull null], @"exp_month",
self.expiryYear ? self.expiryYear : [NSNull null], @"exp_year",
self.securityCode ? self.securityCode : [NSNull null], @"cvc",
self.name ? self.name : [NSNull null], @"name",
self.addressLine1 ? self.addressLine1 : [NSNull null], @"address_line1",
self.addressLine2 ? self.addressLine2 : [NSNull null], @"address_line2",
self.addressZip ? self.addressZip : [NSNull null], @"address_zip",
self.addressState ? self.addressState : [NSNull null], @"address_state",
self.addressCountry ? self.addressCountry : [NSNull null], @"address_country",
nil];
}
- (id)initWithResponseDictionary:(NSDictionary *)card {
if ((self = [super init])) {
self.country = [card objectForKey:@"country"];
self.cvcCheck = [card objectForKey:@"cvc_check"];
self.expiryMonth = [card objectForKey:@"exp_month"];
self.expiryYear = [card objectForKey:@"exp_year"];
self.lastFourDigits = [card objectForKey:@"last4"];
self.type = [card objectForKey:@"type"];
}
return self;
}
@end
@implementation StripeResponse
@synthesize createdAt, currency, amount, isUsed, isLiveMode, token, card;
- (id)initWithResponseDictionary:(NSDictionary *)response {
if ((self = [super init])) {
self.createdAt = [response objectForKey:@"created"];
self.currency = [response objectForKey:@"currency"];
self.isUsed = [[response objectForKey:@"used"] boolValue];
self.amount = [response objectForKey:@"amount"];
self.isLiveMode = [[response objectForKey:@"livemode"] boolValue];
self.token = [response objectForKey:@"id"];
self.card = [[StripeCard alloc] initWithResponseDictionary:[response objectForKey:@"card"]];
}
return self;
}
@end