Display the consent tool in case of M_CONSENT_NOT_GIVEN error

MatrixSDK/MXError.h

@@ -42,6 +42,7 @@ FOUNDATION_EXPORT NSString *const kMXErrCodeStringThreePIDInUse;
 FOUNDATION_EXPORT NSString *const kMXErrCodeStringThreePIDNotFound;
 FOUNDATION_EXPORT NSString *const kMXErrCodeStringServerNotTrusted;
 FOUNDATION_EXPORT NSString *const kMXErrCodeStringGuestAccessForbidden;
+FOUNDATION_EXPORT NSString *const kMXErrCodeStringConsentNotGiven;
 
 FOUNDATION_EXPORT NSString *const kMXErrorStringInvalidToken;
 
@@ -66,8 +67,15 @@ FOUNDATION_EXPORT NSString *const kMXSDKErrCodeStringMissingParameters;
  */
 @property (nonatomic, readonly) NSString *error;
 
+/**
+ Additional error info
+ */
+@property (nonatomic, readonly, copy) NSDictionary *userInfo;
+
 - (id)initWithErrorCode:(NSString*)errcode error:(NSString*)error;
 
+- (id)initWithErrorCode:(NSString*)errcode error:(NSString*)error userInfo:(NSDictionary*)userInfo;
+
 /**
  Create a MXError from a NSError.
 

MatrixSDK/MXError.m

@@ -39,6 +39,7 @@
 NSString *const kMXErrCodeStringThreePIDNotFound    = @"M_THREEPID_NOT_FOUND";
 NSString *const kMXErrCodeStringServerNotTrusted    = @"M_SERVER_NOT_TRUSTED";
 NSString *const kMXErrCodeStringGuestAccessForbidden= @"M_GUEST_ACCESS_FORBIDDEN";
+NSString *const kMXErrCodeStringConsentNotGiven     = @"M_CONSENT_NOT_GIVEN";
 
 NSString *const kMXErrorStringInvalidToken      = @"Invalid token";
 
@@ -62,6 +63,18 @@ -(id)initWithErrorCode:(NSString*)errcode error:(NSString*)error
     return self;
 }
 
+- (id)initWithErrorCode:(NSString*)errcode error:(NSString*)error userInfo:(NSDictionary*)userInfo
+{
+    self = [super init];
+    if (self)
+    {
+        _errcode = errcode;
+        _error = error;
+        _userInfo = userInfo;
+    }
+    return self;
+}
+
 -(id)initWithNSError:(NSError*)nsError
 {
     if ([MXError isMXError:nsError])

MatrixSDK/Utils/MXHTTPClient.h

@@ -25,6 +25,15 @@
  */
 extern NSString * const MXHTTPClientErrorResponseDataKey;
 
+/**
+ Posted when the user did not consent to GDPR.
+ */
+FOUNDATION_EXPORT NSString* const kMXHTTPClientUserConsentNotGivenErrorNotification;
+/**
+ Consent URI userInfo key for notification kMXHTTPClientUserConsentNotGivenErrorNotification
+ */
+FOUNDATION_EXPORT NSString* const kMXHTTPClientUserConsentNotGivenErrorNotificationConsentURIKey;
+
 /**
  Block called when an authentication challenge from a server failed whereas a certificate is present in certificate chain.
 

MatrixSDK/Utils/MXHTTPClient.m

@@ -33,11 +33,18 @@
  */
 #define MXHTTPCLIENT_RETRY_JITTER_MS 3000
 
+NSString * const MXHTTPClientErrorResponseDataKey = @"com.matrixsdk.httpclient.error.response.data";
+NSString* const kMXHTTPClientUserConsentNotGivenErrorNotification = @"kMXHTTPClientUserConsentNotGivenErrorNotification";
+NSString* const kMXHTTPClientUserConsentNotGivenErrorNotificationConsentURIKey = @"kMXHTTPClientUserConsentNotGivenErrorNotificationConsentURIKey";
+
 /**
- `MXHTTPClientErrorResponseDataKey`
- The corresponding value is an `NSDictionary` containing the response data of the operation associated with an error.
+ Matrix error API JSON Keys
  */
-NSString * const MXHTTPClientErrorResponseDataKey = @"com.matrixsdk.httpclient.error.response.data";
+static NSString* const kMXErrorCodeJSONKey = @"errcode";
+static NSString* const kMXErrorMessageJSONKey = @"error";
+
+static NSString* const kMXErrorConsentNotGivenConsentURIJSONKey = @"consent_uri";
+
 
 @interface MXHTTPClient ()
 {
@@ -285,11 +292,10 @@ - (void)tryRequest:(MXHTTPOperation*)mxHTTPOperation
                     {
                         NSLog(@"[MXHTTPClient] Error JSONResponse: %@", JSONResponse);
 
-                        if (JSONResponse[@"errcode"] || JSONResponse[@"error"])
+                        if (JSONResponse[kMXErrorCodeJSONKey] || JSONResponse[kMXErrorMessageJSONKey])
                         {
                             // Extract values from the home server JSON response
-                            MXError *mxError = [[MXError alloc] initWithErrorCode:JSONResponse[@"errcode"]
-                                                                            error:JSONResponse[@"error"]];
+                            MXError *mxError = [self mxErrorFromJSON:JSONResponse];
 
                             if ([mxError.errcode isEqualToString:kMXErrCodeStringLimitExceeded])
                             {
@@ -325,6 +331,24 @@ - (void)tryRequest:(MXHTTPOperation*)mxHTTPOperation
                                     NSLog(@"[MXHTTPClient] Giving up rate limited request %p: spent too long retrying.", mxHTTPOperation);
                                 }
                             }
+                            if ([mxError.errcode isEqualToString:kMXErrCodeStringConsentNotGiven])
+                            {
+                                NSString* consentURI = mxError.userInfo[kMXErrorConsentNotGivenConsentURIJSONKey];
+
+                                if (consentURI.length > 0)
+                                {
+                                    NSLog(@"[MXHTTPClient] User did not consent to GDPR");
+
+                                    // Send a notification if user did not consent to GDPR
+                                    [[NSNotificationCenter defaultCenter] postNotificationName:kMXHTTPClientUserConsentNotGivenErrorNotification
+                                                                                        object:self
+                                                                                      userInfo:@{ kMXHTTPClientUserConsentNotGivenErrorNotificationConsentURIKey: consentURI }];
+                                }
+                                else
+                                {
+                                    NSLog(@"[MXHTTPClient] User did not consent to GDPR but fail to retrieve consent uri");
+                                }
+                            }
                             else
                             {
                                 error = [mxError createNSError];
@@ -721,4 +745,22 @@ - (void)setDefaultSecurityPolicy
     }
 }
 
+- (MXError*)mxErrorFromJSON:(NSDictionary*)json
+{
+    // Add key/values other than error code and error message in user info
+    NSMutableDictionary *userInfo = [json mutableCopy];
+    [userInfo removeObjectForKey:kMXErrorCodeJSONKey];
+    [userInfo removeObjectForKey:kMXErrorMessageJSONKey];
+
+    NSDictionary *mxErrorUserInfo = nil;
+
+    if (userInfo.allKeys.count > 0) {
+        mxErrorUserInfo = [NSDictionary dictionaryWithDictionary:userInfo];
+    }
+
+    return [[MXError alloc] initWithErrorCode:json[kMXErrorCodeJSONKey]
+                                        error:json[kMXErrorMessageJSONKey]
+                                     userInfo:mxErrorUserInfo];
+}
+
 @end