From 3e275a95b119a77b692dfd55728972c353a060d9 Mon Sep 17 00:00:00 2001
From: Gautier Pelloux-Prayer
 <gautier.pelloux-prayer@belledonne-communications.com>
Date: Mon, 27 Apr 2015 15:57:41 +0200
Subject: [PATCH] inapp: plug it in wizard and do not query server more than
 necessary

---
 Classes/Base.lproj/WizardViews.xib |  36 ++++++--
 Classes/InAppProductsManager.h     |   5 +-
 Classes/InAppProductsManager.m     |  48 ++++++----
 Classes/LinphoneManager.m          |   2 +-
 Classes/Utils/Utils.h              |   6 ++
 Classes/Utils/Utils.m              |  19 +++-
 Classes/WizardViewController.h     |   3 +
 Classes/WizardViewController.m     | 141 ++++++++++++++++++-----------
 8 files changed, 174 insertions(+), 86 deletions(-)

diff --git a/Classes/Base.lproj/WizardViews.xib b/Classes/Base.lproj/WizardViews.xib
index 4a7bb5885..a410ace47 100644
--- a/Classes/Base.lproj/WizardViews.xib
+++ b/Classes/Base.lproj/WizardViews.xib
@@ -19,6 +19,8 @@
                 <outlet property="provisionedDomain" destination="wRB-Sh-K8J" id="Ieb-x8-yL4"/>
                 <outlet property="provisionedPassword" destination="ClH-fT-a8N" id="h61-p1-4qG"/>
                 <outlet property="provisionedUsername" destination="MyR-eX-QTa" id="gmr-FI-hpH"/>
+                <outlet property="purchaseButton" destination="uIp-br-8Kv" id="Ov2-V4-LLx"/>
+                <outlet property="registerButton" destination="77" id="A9h-Es-kxv"/>
                 <outlet property="remoteProvisioningButton" destination="Kbn-dL-C5h" id="PPk-DJ-nEb"/>
                 <outlet property="transportChooser" destination="Nrv-SM-lMf" id="7iR-aG-eQf"/>
                 <outlet property="validateAccountView" destination="101" id="112"/>
@@ -42,7 +44,7 @@
                     <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMaxX="YES" flexibleMinY="YES" heightSizable="YES" flexibleMaxY="YES"/>
                     <accessibility key="accessibilityConfiguration" label="Account setup assistant"/>
                     <fontDescription key="fontDescription" type="italicSystem" pointSize="20"/>
-                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
                     <nil key="highlightedColor"/>
                     <color key="shadowColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                     <size key="shadowOffset" width="-1" height="-1"/>
@@ -73,7 +75,7 @@
                     <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMaxX="YES" heightSizable="YES" flexibleMaxY="YES"/>
                     <accessibility key="accessibilityConfiguration" label="Account setup assistant"/>
                     <fontDescription key="fontDescription" type="italicSystem" pointSize="20"/>
-                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
                     <nil key="highlightedColor"/>
                     <color key="shadowColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                     <size key="shadowOffset" width="-1" height="-1"/>
@@ -147,7 +149,7 @@
                         <color key="titleColor" red="0.72549019609999998" green="0.76862745099999996" blue="0.79607843140000001" alpha="1" colorSpace="deviceRGB"/>
                     </state>
                     <connections>
-                        <action selector="onPurchaseAccountClick:" destination="-1" eventType="touchUpInside" id="dQ7-Ig-hvt"/>
+                        <action selector="onRemoteProvisioningClick:" destination="-1" eventType="touchUpInside" id="Ruh-fu-0Vu"/>
                     </connections>
                 </button>
             </subviews>
@@ -162,7 +164,7 @@
                     <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMaxX="YES" heightSizable="YES" flexibleMaxY="YES"/>
                     <accessibility key="accessibilityConfiguration" label="Account setup assistant"/>
                     <fontDescription key="fontDescription" type="italicSystem" pointSize="20"/>
-                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
                     <nil key="highlightedColor"/>
                     <color key="shadowColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                     <size key="shadowOffset" width="-1" height="-1"/>
@@ -237,6 +239,22 @@
                         <action selector="onRegisterClick:" destination="-1" eventType="touchUpInside" id="113"/>
                     </connections>
                 </button>
+                <button hidden="YES" opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" adjustsImageWhenHighlighted="NO" lineBreakMode="middleTruncation" id="uIp-br-8Kv" userLabel="purchaseButton" customClass="UILinphoneButton">
+                    <rect key="frame" x="33" y="481" width="255" height="73"/>
+                    <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMaxX="YES" flexibleMinY="YES" heightSizable="YES"/>
+                    <accessibility key="accessibilityConfiguration" label="Purchase"/>
+                    <fontDescription key="fontDescription" type="boldSystem" pointSize="20"/>
+                    <state key="normal" title="Purchase" backgroundImage="button_background_default.png">
+                        <color key="titleColor" red="0.35686274509999999" green="0.39607843139999999" blue="0.43529411759999997" alpha="1" colorSpace="deviceRGB"/>
+                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
+                    </state>
+                    <state key="highlighted" backgroundImage="button_background_over.png">
+                        <color key="titleColor" red="0.72549019609999998" green="0.76862745099999996" blue="0.79607843140000001" alpha="1" colorSpace="deviceRGB"/>
+                    </state>
+                    <connections>
+                        <action selector="onPurchaseAccountClick:" destination="-1" eventType="touchUpInside" id="BR1-hP-14E"/>
+                    </connections>
+                </button>
             </subviews>
             <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
         </view>
@@ -249,7 +267,7 @@
                     <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMaxX="YES" heightSizable="YES" flexibleMaxY="YES"/>
                     <accessibility key="accessibilityConfiguration" label="Account setup assistant"/>
                     <fontDescription key="fontDescription" type="italicSystem" pointSize="20"/>
-                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
                     <nil key="highlightedColor"/>
                     <color key="shadowColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                     <size key="shadowOffset" width="-1" height="-1"/>
@@ -309,7 +327,7 @@
                     <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMaxX="YES" heightSizable="YES" flexibleMaxY="YES"/>
                     <accessibility key="accessibilityConfiguration" label="Account setup assistant"/>
                     <fontDescription key="fontDescription" type="italicSystem" pointSize="20"/>
-                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
                     <nil key="highlightedColor"/>
                     <color key="shadowColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                     <size key="shadowOffset" width="-1" height="-1"/>
@@ -389,7 +407,7 @@
                     <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMaxX="YES" heightSizable="YES" flexibleMaxY="YES"/>
                     <accessibility key="accessibilityConfiguration" label="Account setup assistant"/>
                     <fontDescription key="fontDescription" type="italicSystem" pointSize="20"/>
-                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
                     <nil key="highlightedColor"/>
                     <color key="shadowColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                     <size key="shadowOffset" width="-1" height="-1"/>
@@ -450,7 +468,7 @@
                     </connections>
                 </button>
                 <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="These parameters were retrieved from a remote provisioning profile." textAlignment="center" lineBreakMode="wordWrap" numberOfLines="7" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="RHE-hi-dfB" userLabel="remoteParamsLabel">
-                    <rect key="frame" x="34" y="414" width="254" height="82"/>
+                    <rect key="frame" x="34" y="414.00000272146076" width="254" height="82"/>
                     <autoresizingMask key="autoresizingMask" flexibleMinX="YES" flexibleMaxX="YES" flexibleMinY="YES" heightSizable="YES"/>
                     <fontDescription key="fontDescription" type="system" pointSize="11"/>
                     <color key="textColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
@@ -468,7 +486,7 @@
                     <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMaxX="YES" heightSizable="YES" flexibleMaxY="YES"/>
                     <accessibility key="accessibilityConfiguration" label="Account setup assistant"/>
                     <fontDescription key="fontDescription" type="italicSystem" pointSize="20"/>
-                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
                     <nil key="highlightedColor"/>
                     <color key="shadowColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                     <size key="shadowOffset" width="-1" height="-1"/>
diff --git a/Classes/InAppProductsManager.h b/Classes/InAppProductsManager.h
index 9660fa51f..1cf4f9567 100644
--- a/Classes/InAppProductsManager.h
+++ b/Classes/InAppProductsManager.h
@@ -25,9 +25,12 @@
 extern NSString *const kLinphoneIAPurchaseNotification;
 
 @interface InAppProductsXMLRPCDelegate : NSObject <XMLRPCConnectionDelegate>
+
 @end
 
-@interface InAppProductsManager : NSObject <SKProductsRequestDelegate, SKPaymentTransactionObserver>
+@interface InAppProductsManager : NSObject <SKProductsRequestDelegate, SKPaymentTransactionObserver> {
+	NSString *latestReceiptMD5;
+}
 
 // startup status, manager is not ready yet.
 #define IAPNotReadyYet			@"IAPNotReadyYet"
diff --git a/Classes/InAppProductsManager.m b/Classes/InAppProductsManager.m
index 83e165dea..8665bc9d5 100644
--- a/Classes/InAppProductsManager.m
+++ b/Classes/InAppProductsManager.m
@@ -152,13 +152,11 @@ NSString *const kLinphoneIAPurchaseNotification = @"LinphoneIAProductsNotificati
 }
 
 - (void)checkReceipt: (SKPaymentTransaction*)transaction {
-	NSData *receiptData = nil;
+	NSString *receiptBase64 = nil;
 	NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];
+
 	// Test whether the receipt is present at the above URL
-	if([[NSFileManager defaultManager] fileExistsAtPath:[receiptURL path]]) {
-		receiptData = [NSData dataWithContentsOfURL:receiptURL];
-		LOGI(@"Found appstore receipt");
-	} else {
+	if(![[NSFileManager defaultManager] fileExistsAtPath:[receiptURL path]]) {
 		// We are probably in sandbox environment, trying to retrieve it...
 		SKRequest* req = [[SKReceiptRefreshRequest alloc] init];
 		LOGI(@"Receipt not found yet, trying to retrieve it...");
@@ -167,19 +165,28 @@ NSString *const kLinphoneIAPurchaseNotification = @"LinphoneIAProductsNotificati
 		return;
 	}
 
-	// We must validate the receipt on our server
-	NSURL *URL = [NSURL URLWithString:[[LinphoneManager instance] lpConfigStringForKey:@"receipt_validation_url" forSection:@"in_app_purchase"]];
+	LOGI(@"Found appstore receipt");
+	receiptBase64 = [[NSData dataWithContentsOfURL:receiptURL] base64EncodedStringWithOptions:0];
+	//only check the receipt if it has changed
+	if (latestReceiptMD5 == nil || ! [latestReceiptMD5 isEqualToString:[receiptBase64 md5]]) {
+		// We must validate the receipt on our server
+		NSURL *URL = [NSURL URLWithString:[[LinphoneManager instance] lpConfigStringForKey:@"receipt_validation_url" forSection:@"in_app_purchase"]];
 
-	XMLRPCRequest *request = [[XMLRPCRequest alloc] initWithURL: URL];
-	[request setMethod: @"get_expiration_date" withParameters:[NSArray arrayWithObjects:
-																			   [receiptData base64EncodedStringWithOptions:0],
-																			   @"",
-																			   @"apple",
-																			   nil]];
-	XMLRPCConnectionManager *manager = [XMLRPCConnectionManager sharedManager];
-	[manager spawnConnectionWithXMLRPCRequest: request delegate: self.xmlrpc];
-	LOGE(@"XMLRPC query %@: %@", [request method], [request body]);
-	[request release];
+		XMLRPCRequest *request = [[XMLRPCRequest alloc] initWithURL: URL];
+		[request setMethod: @"get_expiration_date" withParameters:[NSArray arrayWithObjects:
+																   receiptBase64,
+																   @"",
+																   @"apple",
+																   nil]];
+		latestReceiptMD5 = [[receiptBase64 md5] retain];
+
+		XMLRPCConnectionManager *manager = [XMLRPCConnectionManager sharedManager];
+		[manager spawnConnectionWithXMLRPCRequest: request delegate: self.xmlrpc];
+		LOGI(@"XMLRPC query %@: %@", [request method], [request body]);
+		[request release];
+	} else {
+		LOGW(@"Skipping receipt check, it has already been done!");
+	}
 }
 
 - (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions {
@@ -239,7 +246,7 @@ NSString *const kLinphoneIAPurchaseNotification = @"LinphoneIAProductsNotificati
 }
 
 - (void)retrievePurchases {
-	LOGE(@"todo");//[self checkReceipt:nil];
+	[self checkReceipt:nil];
 }
 
 - (void)XMLRPCRequest:(XMLRPCRequest *)request didReceiveResponse:(XMLRPCResponse *)response {
@@ -259,11 +266,14 @@ NSString *const kLinphoneIAPurchaseNotification = @"LinphoneIAProductsNotificati
 		//Don't handle if not object: HTTP/Communication Error
 		if([[request method] isEqualToString:@"get_expiration_date"]) {
 			if([response object] == [NSNumber numberWithInt:1]) {
+				LOGE(@"Todo: parse the response");
+//				[_productsIDPurchased addObject:@"test.auto_renew_7days"];
 				[self postNotificationforStatus:IAPReceiptSucceeded];
 				return;
 			}
 		}
 	}
+	latestReceiptMD5 = nil;
 	[self postNotificationforStatus:IAPReceiptFailed];
 }
 
@@ -278,7 +288,7 @@ NSString *const kLinphoneIAPurchaseNotification = @"LinphoneIAProductsNotificati
 	//	[errorView show];
 	//	[errorView release];
 	//	[waitView setHidden:true];
-
+	latestReceiptMD5 = nil;
 	[self postNotificationforStatus:IAPReceiptFailed];
 }
 @end
diff --git a/Classes/LinphoneManager.m b/Classes/LinphoneManager.m
index af6c4b5c1..841517dde 100644
--- a/Classes/LinphoneManager.m
+++ b/Classes/LinphoneManager.m
@@ -1370,7 +1370,7 @@ static LinphoneCoreVTable linphonec_vtable = {
 		}
 		linphone_core_enable_video(theLinphoneCore, FALSE, FALSE);
 	}
-	// Retrieve InApp purchases
+	// Query our in-app server when core is ready in order to retrieve InApp purchases
 	[_iapManager retrievePurchases];
 
 	LOGW(@"Linphone [%s]  started on [%s]", linphone_core_get_version(), [[UIDevice currentDevice].model cStringUsingEncoding:[NSString defaultCStringEncoding]]);
diff --git a/Classes/Utils/Utils.h b/Classes/Utils/Utils.h
index 8e210c001..209499e75 100644
--- a/Classes/Utils/Utils.h
+++ b/Classes/Utils/Utils.h
@@ -69,3 +69,9 @@ typedef enum _LinphoneLoggerSeverity {
 #define LOGF(...) LOGV(LinphoneLoggerFatal, __VA_ARGS__)
 
 #endif
+
+@interface NSString(md5)
+
+- (NSString *)md5;
+
+@end
diff --git a/Classes/Utils/Utils.m b/Classes/Utils/Utils.m
index b15ee923f..00ed9c506 100644
--- a/Classes/Utils/Utils.m
+++ b/Classes/Utils/Utils.m
@@ -231,5 +231,22 @@
 	return([NSString stringWithFormat:@"%1.1f GB",floatSize]);
 }
 
-
 @end
+
+@implementation NSString(md5)
+
+#import <CommonCrypto/CommonDigest.h>
+
+- (NSString *)md5 {
+	const char *ptr = [self UTF8String];
+	unsigned char md5Buffer[CC_MD5_DIGEST_LENGTH];
+	CC_MD5(ptr, strlen(ptr), md5Buffer);
+	NSMutableString *output = [NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
+	for(int i = 0; i < CC_MD5_DIGEST_LENGTH; i++) {
+		[output appendFormat:@"%02x",md5Buffer[i]];
+	}
+
+	return output;
+}
+
+@end
\ No newline at end of file
diff --git a/Classes/WizardViewController.h b/Classes/WizardViewController.h
index 9f8d721ee..040a6a0b8 100644
--- a/Classes/WizardViewController.h
+++ b/Classes/WizardViewController.h
@@ -20,6 +20,7 @@
 #import <UIKit/UIKit.h>
 #import <XMLRPCConnectionDelegate.h>
 #import "UICompositeViewController.h"
+#import "LinphoneUI/UILinphoneButton.h"
 
 @interface WizardViewController : TPMultiLayoutViewController
 <UITextFieldDelegate,
@@ -53,6 +54,8 @@
 @property (nonatomic, retain) IBOutlet UIButton *connectAccountButton;
 @property (nonatomic, retain) IBOutlet UIButton *externalAccountButton;
 @property (retain, nonatomic) IBOutlet UIButton *remoteProvisioningButton;
+@property (retain, nonatomic) IBOutlet UILinphoneButton *registerButton;
+@property (retain, nonatomic) IBOutlet UILinphoneButton *purchaseButton;
 
 @property (retain, nonatomic) IBOutlet UITextField *provisionedUsername;
 @property (retain, nonatomic) IBOutlet UITextField *provisionedPassword;
diff --git a/Classes/WizardViewController.m b/Classes/WizardViewController.m
index 36a4b4aa1..fcc5e10c9 100644
--- a/Classes/WizardViewController.m
+++ b/Classes/WizardViewController.m
@@ -114,6 +114,8 @@ typedef enum _ViewElement {
     [provisionedPassword release];
     [provisionedDomain release];
     [_transportChooser release];
+    [_purchaseButton release];
+    [_registerButton release];
     [super dealloc];
 }
 
@@ -203,6 +205,10 @@ static UICompositeViewDescription *compositeDescription = nil;
         [LinphoneUtils adjustFontSize:validateAccountView mult:2.22f];
         [LinphoneUtils adjustFontSize:provisionedAccountView mult:2.22f];
     }
+
+	BOOL mustPurchaseNewAccount = ([[LinphoneManager instance] lpConfigStringForKey:@"paid_account_id" forSection:@"in_app_purchase"] != nil);
+	_registerButton.hidden = mustPurchaseNewAccount;
+	_purchaseButton.hidden = !mustPurchaseNewAccount;
 }
 
 
@@ -731,29 +737,7 @@ static UICompositeViewDescription *compositeDescription = nil;
     [remoteInput release];
 }
 
-- (void)inAppPurchaseNotification: (NSNotification*)notification {
-	InAppProductsManager *iapm = [[LinphoneManager instance] iapManager];
-	if ([iapm isPurchasedWithID:[[LinphoneManager instance] lpConfigStringForKey:@"paid_account_id" forSection:@"in_app_purchase"]]) {
-		[self onPurchaseAccountClick:self];
-	}
-}
-
-- (IBAction)onPurchaseAccountClick:(id)sender {
-	InAppProductsManager *iapm = [[LinphoneManager instance] iapManager];
-	//if has already purchased, continue
-	if ([iapm isPurchasedWithID:[[LinphoneManager instance] lpConfigStringForKey:@"paid_account_id" forSection:@"in_app_purchase"]]) {
-		NSString *username  = [WizardViewController findTextField:ViewElement_Username  view:contentView].text;
-		NSString *password  = [WizardViewController findTextField:ViewElement_Password  view:contentView].text;
-		NSString *domain    = [WizardViewController findTextField:ViewElement_Domain  view:contentView].text;
-		NSString *transport = [self.transportChooser titleForSegmentAtIndex:self.transportChooser.selectedSegmentIndex];
-
-		[self verificationSignInWithUsername:username password:password domain:domain withTransport:transport];
-	} else {
-		[iapm purchaseWithID: [[LinphoneManager instance] lpConfigStringForKey:@"paid_account_id" forSection:@"in_app_purchase"]];
-	}
-}
-
-- (void) verificationSignInWithUsername:(NSString*)username password:(NSString*)password domain:(NSString*)domain withTransport:(NSString*)transport {
+- (BOOL) verificationWithUsername:(NSString*)username password:(NSString*)password domain:(NSString*)domain withTransport:(NSString*)transport {
 	NSMutableString *errors = [NSMutableString string];
 	if ([username length] == 0) {
 		[errors appendString:[NSString stringWithFormat:NSLocalizedString(@"Please enter a valid username.\n", nil)]];
@@ -771,7 +755,12 @@ static UICompositeViewDescription *compositeDescription = nil;
 												  otherButtonTitles:nil,nil];
 		[errorView show];
 		[errorView release];
-	} else {
+		return FALSE;
+	}
+	return TRUE;
+}
+- (void) verificationSignInWithUsername:(NSString*)username password:(NSString*)password domain:(NSString*)domain withTransport:(NSString*)transport {
+	if ([self verificationWithUsername:username password:password domain:domain withTransport:transport]) {
 		[waitView setHidden:false];
 		if ([LinphoneManager instance].connectivity == none) {
 			DTAlertView *alert = [[DTAlertView alloc] initWithTitle:NSLocalizedString(@"No connectivity", nil)
@@ -811,44 +800,50 @@ static UICompositeViewDescription *compositeDescription = nil;
     [self verificationSignInWithUsername:username password:password domain:nil withTransport:nil];
 }
 
+- (BOOL)verificationRegisterWithUsername:(NSString*)username password:(NSString*)password password2:(NSString*)password2 email:(NSString*)email  {
+	NSMutableString *errors = [NSMutableString string];
+	NSInteger username_length = [[LinphoneManager instance] lpConfigIntForKey:@"username_length" forSection:@"wizard"];
+	NSInteger password_length = [[LinphoneManager instance] lpConfigIntForKey:@"password_length" forSection:@"wizard"];
+
+	if ([username length] < username_length) {
+		[errors appendString:[NSString stringWithFormat:NSLocalizedString(@"The username is too short (minimum %d characters).\n", nil), username_length]];
+	}
+
+	if ([password length] < password_length) {
+		[errors appendString:[NSString stringWithFormat:NSLocalizedString(@"The password is too short (minimum %d characters).\n", nil), password_length]];
+	}
+
+	if (![password2 isEqualToString:password]) {
+		[errors appendString:NSLocalizedString(@"The passwords are different.\n", nil)];
+	}
+
+	NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", @".+@.+\\.[A-Za-z]{2}[A-Za-z]*"];
+	if(![emailTest evaluateWithObject:email]) {
+		[errors appendString:NSLocalizedString(@"The email is invalid.\n", nil)];
+	}
+
+	if([errors length]) {
+		UIAlertView* errorView = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Check error(s)",nil)
+															message:[errors substringWithRange:NSMakeRange(0, [errors length] - 1)]
+														   delegate:nil
+												  cancelButtonTitle:NSLocalizedString(@"Continue",nil)
+												  otherButtonTitles:nil,nil];
+		[errorView show];
+		[errorView release];
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
 - (IBAction)onRegisterClick:(id)sender {
     UITextField* username_tf = [WizardViewController findTextField:ViewElement_Username  view:contentView];
     NSString *username = username_tf.text;
     NSString *password = [WizardViewController findTextField:ViewElement_Password  view:contentView].text;
     NSString *password2 = [WizardViewController findTextField:ViewElement_Password2  view:contentView].text;
     NSString *email = [WizardViewController findTextField:ViewElement_Email view:contentView].text;
-    NSMutableString *errors = [NSMutableString string];
 
-    NSInteger username_length = [[LinphoneManager instance] lpConfigIntForKey:@"username_length" forSection:@"wizard"];
-    NSInteger password_length = [[LinphoneManager instance] lpConfigIntForKey:@"password_length" forSection:@"wizard"];
-
-    if ([username length] < username_length) {
-        [errors appendString:[NSString stringWithFormat:NSLocalizedString(@"The username is too short (minimum %d characters).\n", nil), username_length]];
-    }
-
-    if ([password length] < password_length) {
-        [errors appendString:[NSString stringWithFormat:NSLocalizedString(@"The password is too short (minimum %d characters).\n", nil), password_length]];
-    }
-
-    if (![password2 isEqualToString:password]) {
-        [errors appendString:NSLocalizedString(@"The passwords are different.\n", nil)];
-    }
-
-    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", @".+@.+\\.[A-Za-z]{2}[A-Za-z]*"];
-    if(![emailTest evaluateWithObject:email]) {
-        [errors appendString:NSLocalizedString(@"The email is invalid.\n", nil)];
-    }
-
-    if([errors length]) {
-        UIAlertView* errorView = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Check error(s)",nil)
-                                                        message:[errors substringWithRange:NSMakeRange(0, [errors length] - 1)]
-                                                       delegate:nil
-                                              cancelButtonTitle:NSLocalizedString(@"Continue",nil)
-                                              otherButtonTitles:nil,nil];
-        [errorView show];
-        [errorView release];
-
-    } else {
+	if ([self verificationRegisterWithUsername:username password:password password2:password2 email:email]) {
         username = [username lowercaseString];
         [username_tf setText:username];
         NSString *identity = [self identityFromUsername:username];
@@ -856,6 +851,42 @@ static UICompositeViewDescription *compositeDescription = nil;
     }
 }
 
+- (void)inAppPurchaseNotification: (NSNotification*)notification {
+	InAppProductsManager *iapm = [[LinphoneManager instance] iapManager];
+	BOOL wasWaitingForInApp = (currentView == createAccountView) && ![waitView isHidden];
+	[waitView setHidden:true];
+
+	//now that the purchase is made, let's create the account.
+	if (wasWaitingForInApp) {
+		if ([iapm isPurchasedWithID:[[LinphoneManager instance] lpConfigStringForKey:@"paid_account_id" forSection:@"in_app_purchase"]]) {
+			[waitView setHidden:true];
+			[self onPurchaseAccountClick:self];
+		}
+	}
+}
+
+- (IBAction)onPurchaseAccountClick:(id)sender {
+	UITextField* username_tf = [WizardViewController findTextField:ViewElement_Username  view:contentView];
+	NSString *username = username_tf.text;
+	NSString *password = [WizardViewController findTextField:ViewElement_Password  view:contentView].text;
+	NSString *password2 = [WizardViewController findTextField:ViewElement_Password2  view:contentView].text;
+	NSString *email = [WizardViewController findTextField:ViewElement_Email view:contentView].text;
+
+	if ([self verificationRegisterWithUsername:username password:password password2:password2 email:email]) {
+		InAppProductsManager *iapm = [[LinphoneManager instance] iapManager];
+		//if has already purchased, continue
+		if ([iapm isPurchasedWithID:[[LinphoneManager instance] lpConfigStringForKey:@"paid_account_id" forSection:@"in_app_purchase"]]) {
+			username = [username lowercaseString];
+			[username_tf setText:username];
+			NSString *identity = [self identityFromUsername:username];
+			[self checkUserExist:identity];
+		} else {
+			[waitView setHidden:false];
+			[iapm purchaseWithID: [[LinphoneManager instance] lpConfigStringForKey:@"paid_account_id" forSection:@"in_app_purchase"]];
+		}
+	}
+}
+
 - (IBAction)onProvisionedLoginClick:(id)sender {
     NSString *username = provisionedUsername.text;
     NSString *password = provisionedPassword.text;