Merge MatrixKit develop with commit hash: b85b736313bec0592bd1cabc68035d97f5331137

2026-04-18 23:48:29 +02:00 · 2021-12-03 11:47:24 +01:00
parent af65f71177
commit f57941177e
475 changed files with 87437 additions and 0 deletions
--- a/Riot/Modules/MatrixKit/Views/Authentication/MXKAuthenticationRecaptchaWebView.m
+++ b/Riot/Modules/MatrixKit/Views/Authentication/MXKAuthenticationRecaptchaWebView.m
@@ -0,0 +1,126 @@
+/*
+ Copyright 2016 OpenMarket Ltd
+ Copyright 2018 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+#import "MXKAuthenticationRecaptchaWebView.h"
+
+NSString *kMXKRecaptchaHTMLString = @"<html> \
+<head> \
+<meta name='viewport' content='initial-scale=1.0' /> \
+<script type=\"text/javascript\"> \
+var verifyCallback = function(response) { \
+    /* Generic method to make a bridge between JS and the WKWebView*/ \
+    var iframe = document.createElement('iframe'); \
+    iframe.setAttribute('src', 'js:' + JSON.stringify({'action': 'verifyCallback', 'response': response})); \
+ \
+    document.documentElement.appendChild(iframe); \
+    iframe.parentNode.removeChild(iframe); \
+    iframe = null; \
+}; \
+var onloadCallback = function() { \
+    grecaptcha.render('recaptcha_widget', { \
+        'sitekey' : '%@', \
+        'callback': verifyCallback \
+    }); \
+}; \
+</script> \
+</head> \
+<body> \
+    <div id=\"recaptcha_widget\"></div> \
+    <script src=\"https://www.google.com/recaptcha/api.js?onload=onloadCallback&render=explicit\" async defer> \
+    </script> \
+</body> \
+</html>";
+
+@interface MXKAuthenticationRecaptchaWebView () <WKNavigationDelegate>
+{
+    // The block called when the reCAPTCHA response is received
+    void (^onResponse)(NSString *);
+    
+    // Activity indicator
+    UIActivityIndicatorView *activityIndicator;
+}
+@end
+
+@implementation MXKAuthenticationRecaptchaWebView
+
+- (void)dealloc
+{
+    if (activityIndicator)
+    {
+        [activityIndicator removeFromSuperview];
+        activityIndicator = nil;
+    }
+}
+
+- (void)openRecaptchaWidgetWithSiteKey:(NSString*)siteKey fromHomeServer:(NSString*)homeServer callback:(void (^)(NSString *response))callback
+{
+    self.navigationDelegate = self;
+    
+    onResponse = callback;
+    
+    // Add activity indicator
+    activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
+    activityIndicator.center = self.center;
+    [self addSubview:activityIndicator];
+    [activityIndicator startAnimating];
+    
+    NSString *htmlString = [NSString stringWithFormat:kMXKRecaptchaHTMLString, siteKey];
+    
+    [self loadHTMLString:htmlString baseURL:[NSURL URLWithString:homeServer]];
+}
+
+#pragma mark - WKNavigationDelegate
+
+- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation
+{
+    if (activityIndicator)
+    {
+        [activityIndicator stopAnimating];
+        [activityIndicator removeFromSuperview];
+        activityIndicator = nil;
+    }
+}
+
+- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
+{
+    NSString *urlString = navigationAction.request.URL.absoluteString;
+
+    if ([urlString hasPrefix:@"js:"])
+    {
+        // Listen only to scheme of the JS-WKWebView bridge
+        NSString *jsonString = [[[urlString componentsSeparatedByString:@"js:"] lastObject]  stringByReplacingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
+        NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+
+        NSError *error;
+        NSDictionary *parameters = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers
+                                                                     error:&error];
+
+        if (!error)
+        {
+            if ([@"verifyCallback" isEqualToString:parameters[@"action"]])
+            {
+                // Transfer the reCAPTCHA response
+                onResponse(parameters[@"response"]);
+            }
+        }
+        decisionHandler(WKNavigationActionPolicyCancel);
+        return;
+    }
+    decisionHandler(WKNavigationActionPolicyAllow);
+}
+
+@end