Feature merge request:

Add support for iOS http proxy detection

R=pthatcher@webrtc.org, tkchin@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45439004

Patch from Yuriy Shevchuk <youwrk@gmail.com>.

Cr-Commit-Position: refs/heads/master@{#9250}

webrtc/base/BUILD.gn

@@ -528,6 +528,11 @@ static_library("rtc_base") {
 
   if (is_ios) {
     all_dependent_configs += [ ":ios_config" ]
+
+    sources += [
+      "macconversion.cc",
+      "macconversion.h",
+    ]
   }
 
   if (use_x11) {

webrtc/base/base.gyp

@@ -581,6 +581,9 @@
           ],
         }],
         ['OS=="ios"', {
+          'sources/': [
+            ['include', 'macconversion.*'],
+          ],
           'all_dependent_settings': {
             'xcode_settings': {
               'OTHER_LDFLAGS': [

webrtc/base/macconversion.cc

@@ -8,7 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
+#if defined(WEBRTC_MAC) || defined(WEBRTC_IOS)
 
 #include <CoreFoundation/CoreFoundation.h>
 
@@ -156,4 +156,4 @@ bool p_isCFNumberTrue(CFNumberRef cfn) {
   return result;
 }
 
-#endif  // WEBRTC_MAC && !defined(WEBRTC_IOS)
+#endif  // WEBRTC_MAC || WEBRTC_IOS

webrtc/base/macconversion.h

@@ -11,7 +11,7 @@
 #ifndef WEBRTC_BASE_MACCONVERSION_H_
 #define WEBRTC_BASE_MACCONVERSION_H_
 
-#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
+#if defined(WEBRTC_MAC) || defined(WEBRTC_IOS)
 
 #include <CoreFoundation/CoreFoundation.h>
 
@@ -34,6 +34,6 @@ bool p_convertCFNumberToInt(CFNumberRef cfn, int* i);
 // given a CFNumberRef, determine if it represents a true value.
 bool p_isCFNumberTrue(CFNumberRef cfn);
 
-#endif  // WEBRTC_MAC && !defined(WEBRTC_IOS)
+#endif  // WEBRTC_MAC || WEBRTC_IOS
 
 #endif  // WEBRTC_BASE_MACCONVERSION_H_

webrtc/base/proxydetect.cc

@@ -27,6 +27,11 @@
 #include "macconversion.h"
 #endif
 
+#ifdef WEBRTC_IOS
+#include <CFNetwork/CFNetwork.h>
+#include "macconversion.h"
+#endif
+
 #include <map>
 
 #include "webrtc/base/fileutils.h"
@@ -1179,6 +1184,56 @@ bool GetMacProxySettings(ProxyInfo* proxy) {
 }
 #endif  // WEBRTC_MAC && !defined(WEBRTC_IOS)
 
+#ifdef WEBRTC_IOS
+// iOS has only http proxy
+bool GetiOSProxySettings(ProxyInfo* proxy) {
+
+  bool result = false;
+
+  CFDictionaryRef proxy_dict = CFNetworkCopySystemProxySettings();
+  if (!proxy_dict) {
+    LOG(LS_ERROR) << "CFNetworkCopySystemProxySettings failed";
+    return false;
+  }
+
+  CFNumberRef proxiesHTTPEnable = (CFNumberRef)CFDictionaryGetValue(
+    proxy_dict, kCFNetworkProxiesHTTPEnable);
+  if (!p_isCFNumberTrue(proxiesHTTPEnable)) {
+    CFRelease(proxy_dict);
+    return false;
+  }
+
+  CFStringRef proxy_address = (CFStringRef)CFDictionaryGetValue(
+    proxy_dict, kCFNetworkProxiesHTTPProxy);
+  CFNumberRef proxy_port = (CFNumberRef)CFDictionaryGetValue(
+    proxy_dict, kCFNetworkProxiesHTTPPort);
+
+  // the data we need to construct the SocketAddress for the proxy.
+  std::string hostname;
+  int port;
+  if (p_convertHostCFStringRefToCPPString(proxy_address, hostname) &&
+      p_convertCFNumberToInt(proxy_port, &port)) {
+      // We have something enabled, with a hostname and a port.
+      // That's sufficient to set up the proxy info.
+      // Finally, try HTTP proxy. Note that flute doesn't
+      // differentiate between HTTPS and HTTP, hence we are using the
+      // same flute type here, ie. PROXY_HTTPS.
+      proxy->type = PROXY_HTTPS;
+
+      proxy->address.SetIP(hostname);
+      proxy->address.SetPort(port);
+      result = true;
+  }
+
+  // We created the dictionary with something that had the
+  // word 'copy' in it, so we have to release it, according
+  // to the Carbon memory management standards.
+  CFRelease(proxy_dict);
+
+  return result;
+}
+#endif // WEBRTC_IOS
+
 bool AutoDetectProxySettings(const char* agent, const char* url,
                              ProxyInfo* proxy) {
 #if defined(WEBRTC_WIN)
@@ -1195,6 +1250,8 @@ bool GetSystemDefaultProxySettings(const char* agent, const char* url,
   return GetIeProxySettings(agent, url, proxy);
 #elif defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
   return GetMacProxySettings(proxy);
+#elif defined(WEBRTC_IOS)
+  return GetiOSProxySettings(proxy);
 #else
   // TODO: Get System settings if browser is not firefox.
   return GetFirefoxProxySettings(url, proxy);