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[iOS] Synthesize IPv6 addresses

This commit is contained in:
Lyubomir Marinov 2016-12-17 04:03:10 -06:00
parent 891bd7f346
commit 9f332ffcec
7 changed files with 404 additions and 133 deletions
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4
ios/app/POSIX.h Normal file
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@ -0,0 +1,4 @@
#import "RCTBridgeModule.h"
@interface POSIX : NSObject<RCTBridgeModule>
@end

63
ios/app/POSIX.m Normal file
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@ -0,0 +1,63 @@
#import "POSIX.h"
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
@implementation POSIX
RCT_EXPORT_MODULE();
RCT_EXPORT_METHOD(getaddrinfo:(NSString *)hostname
resolve:(RCTPromiseResolveBlock)resolve
reject:(RCTPromiseRejectBlock)reject) {
int err;
struct addrinfo *res;
NSString *rejectCode;
if (0 == (err = getaddrinfo(hostname.UTF8String, NULL, NULL, &res))) {
int af = res->ai_family;
struct sockaddr *sa = res->ai_addr;
void *addr;
switch (af) {
case AF_INET:
addr = &(((struct sockaddr_in *) sa)->sin_addr);
break;
case AF_INET6:
addr = &(((struct sockaddr_in6 *) sa)->sin6_addr);
break;
default:
addr = NULL;
break;
}
if (addr) {
char v[MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN)];
if (inet_ntop(af, addr, v, sizeof(v))) {
resolve([NSString stringWithUTF8String:v]);
} else {
err = errno;
rejectCode = @"inet_ntop";
}
} else {
err = EAFNOSUPPORT;
rejectCode = @"EAFNOSUPPORT";
}
freeaddrinfo(res);
} else {
rejectCode = @"getaddrinfo";
}
if (0 != err) {
NSError *error
= [NSError errorWithDomain:NSPOSIXErrorDomain
code:err
userInfo:nil];
reject(rejectCode, error.localizedDescription, error);
}
}
@end

6
ios/jitsi-meet-react.xcodeproj/project.pbxproj
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@ -26,6 +26,7 @@
832341BD1AAA6AB300B99B32 /* libRCTText.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 832341B51AAA6A8300B99B32 /* libRCTText.a */; };
B30EF2311DC0ED7C00690F45 /* WebRTC.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B30EF2301DC0ED7C00690F45 /* WebRTC.framework */; };
B30EF2331DC0EEA500690F45 /* WebRTC.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B30EF2301DC0ED7C00690F45 /* WebRTC.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
B3A9D0251E0481E10009343D /* POSIX.m in Sources */ = {isa = PBXBuildFile; fileRef = B3A9D0241E0481E10009343D /* POSIX.m */; };
BF9643821C34FBB300B0BBDF /* AVFoundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = BF9643811C34FBB300B0BBDF /* AVFoundation.framework */; };
BF9643841C34FBBB00B0BBDF /* AudioToolbox.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = BF9643831C34FBBB00B0BBDF /* AudioToolbox.framework */; };
BF9643861C34FBC100B0BBDF /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = BF9643851C34FBC100B0BBDF /* CoreGraphics.framework */; };
@ -212,6 +213,8 @@
821D8ABD506944B4BDBB069B /* libRNVectorIcons.a */ = {isa = PBXFileReference; explicitFileType = undefined; fileEncoding = 9; includeInIndex = 0; lastKnownFileType = archive.ar; path = libRNVectorIcons.a; sourceTree = "<group>"; };
832341B01AAA6A8300B99B32 /* RCTText.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = RCTText.xcodeproj; path = "../node_modules/react-native/Libraries/Text/RCTText.xcodeproj"; sourceTree = "<group>"; };
B30EF2301DC0ED7C00690F45 /* WebRTC.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = WebRTC.framework; path = "../node_modules/react-native-webrtc/ios/WebRTC.framework"; sourceTree = "<group>"; };
B3A9D0231E0481E10009343D /* POSIX.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = POSIX.h; path = app/POSIX.h; sourceTree = "<group>"; };
B3A9D0241E0481E10009343D /* POSIX.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = POSIX.m; path = app/POSIX.m; sourceTree = "<group>"; };
B3B083EB1D4955FF0069CEE7 /* jitsi-meet-react.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.xml; path = "jitsi-meet-react.entitlements"; sourceTree = "<group>"; };
B96AF9B6FBC0453798399985 /* FontAwesome.ttf */ = {isa = PBXFileReference; explicitFileType = undefined; fileEncoding = 9; includeInIndex = 0; lastKnownFileType = unknown; name = FontAwesome.ttf; path = "../node_modules/react-native-vector-icons/Fonts/FontAwesome.ttf"; sourceTree = "<group>"; };
BF9643811C34FBB300B0BBDF /* AVFoundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AVFoundation.framework; path = System/Library/Frameworks/AVFoundation.framework; sourceTree = SDKROOT; };
@ -331,6 +334,8 @@
13B07FB11A68108700A75B9A /* LaunchScreen.xib */,
008F07F21AC5B25A0029DE68 /* main.jsbundle */,
13B07FB71A68108700A75B9A /* main.m */,
B3A9D0231E0481E10009343D /* POSIX.h */,
B3A9D0241E0481E10009343D /* POSIX.m */,
);
name = app;
sourceTree = "<group>";
@ -755,6 +760,7 @@
isa = PBXSourcesBuildPhase;
buildActionMask = 2147483647;
files = (
B3A9D0251E0481E10009343D /* POSIX.m in Sources */,
13B07FBC1A68108700A75B9A /* AppDelegate.m in Sources */,
13B07FC11A68108700A75B9A /* main.m in Sources */,
);

317
react/features/base/lib-jitsi-meet/native/RTCPeerConnection.js Normal file
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import { Platform } from 'react-native';
import {
RTCPeerConnection,
RTCSessionDescription
} from 'react-native-webrtc';
import { POSIX } from '../../react-native';
// XXX At the time of this writing extending RTCPeerConnection using ES6 'class'
// and 'extends' causes a runtime error related to the attempt to define the
// onaddstream property setter. The error mentions that babelHelpers.set is
// undefined which appears to be a thing inside React Native's packager. As a
// workaround, extend using the pre-ES6 way.
/**
* The RTCPeerConnection provided by react-native-webrtc fires onaddstream
* before it remembers remotedescription (and thus makes it available to API
* clients). Because that appears to be a problem for lib-jitsi-meet which has
* been successfully running on Chrome, Firefox, Temasys, etc. for a very long
* time, attempt to meets its expectations (by extending RTCPPeerConnection).
*
* @class
*/
export default function _RTCPeerConnection(...args) {
/* eslint-disable no-invalid-this */
RTCPeerConnection.apply(this, args);
this.onaddstream = (...args) => // eslint-disable-line no-shadow
(this._onaddstreamQueue
? this._queueOnaddstream
: this._invokeOnaddstream)
.apply(this, args);
// Shadow RTCPeerConnection's onaddstream but after _RTCPeerConnection has
// assigned to the property in question. Defining the property on
// _RTCPeerConnection's prototype may (or may not, I don't know) work but I
// don't want to try because the following approach appears to work and I
// understand it.
Object.defineProperty(this, 'onaddstream', {
configurable: true,
enumerable: true,
get() {
return this._onaddstream;
},
set(value) {
this._onaddstream = value;
}
});
/* eslint-enable no-invalid-this */
}
_RTCPeerConnection.prototype = Object.create(RTCPeerConnection.prototype);
_RTCPeerConnection.prototype.constructor = _RTCPeerConnection;
_RTCPeerConnection.prototype._invokeOnaddstream = function(...args) {
const onaddstream = this._onaddstream;
return onaddstream && onaddstream.apply(this, args);
};
_RTCPeerConnection.prototype._invokeQueuedOnaddstream = function(q) {
q && q.forEach(args => {
try {
this._invokeOnaddstream(...args);
} catch (e) {
// TODO Determine whether the combination of the standard
// setRemoteDescription and onaddstream results in a similar
// swallowing of errors.
_LOGE(e);
}
});
};
_RTCPeerConnection.prototype._queueOnaddstream = function(...args) {
this._onaddstreamQueue.push(Array.from(args));
};
_RTCPeerConnection.prototype.setRemoteDescription = function(
sessionDescription,
successCallback,
errorCallback) {
// If the deprecated callback-based version is used, translate it to the
// Promise-based version.
if (typeof successCallback !== 'undefined'
|| typeof errorCallback !== 'undefined') {
// XXX Returning a Promise is not necessary. But I don't see why it'd
// hurt (much).
return (
_RTCPeerConnection.prototype.setRemoteDescription.call(
this,
sessionDescription)
.then(successCallback, errorCallback));
}
return (
_synthesizeIPv6Addresses(sessionDescription)
.catch(reason => {
reason && _LOGE(reason);
return sessionDescription;
})
.then(value => _setRemoteDescription.bind(this)(value)));
};
/**
* Logs at error level.
*
* @returns {void}
*/
function _LOGE(...args) {
console && console.error && console.error(...args);
}
/**
* Adapts react-native-webrtc's {@link RTCPeerConnection#setRemoteDescription}
* implementation which uses the deprecated, callback-based version to the
* <tt>Promise</tt>-based version.
*
* @param {RTCSessionDescription} sessionDescription - The RTCSessionDescription
* which specifies the configuration of the remote end of the connection.
* @returns {Promise}
*/
function _setRemoteDescription(sessionDescription) {
return new Promise((resolve, reject) => {
/* eslint-disable no-invalid-this */
// Ensure I'm not remembering onaddstream invocations from previous
// setRemoteDescription calls. I shouldn't be but... anyway.
this._onaddstreamQueue = [];
RTCPeerConnection.prototype.setRemoteDescription.call(
this,
sessionDescription,
(...args) => {
let q;
try {
resolve(...args);
} finally {
q = this._onaddstreamQueue;
this._onaddstreamQueue = undefined;
}
this._invokeQueuedOnaddstream(q);
},
(...args) => {
this._onaddstreamQueue = undefined;
reject(...args);
});
/* eslint-enable no-invalid-this */
});
}
/**
* Synthesize IPv6 addresses on iOS in order to support IPv6 NAT64 networks.
*
* @param {RTCSessionDescription} sdp - The RTCSessionDescription which
* specifies the configuration of the remote end of the connection.
* @returns {Promise}
*/
function _synthesizeIPv6Addresses(sdp) {
// The synthesis of IPv6 addresses is implemented on iOS only at the time of
// this writing.
if (Platform.OS !== 'ios') {
return Promise.resolve(sdp);
}
return (
new Promise(resolve => resolve(_synthesizeIPv6Addresses0(sdp)))
.then(({ ips, lines }) =>
Promise.all(Array.from(ips.values()))
.then(() => _synthesizeIPv6Addresses1(sdp, ips, lines))
));
}
/* eslint-disable max-depth */
/**
* Implements the initial phase of the synthesis of IPv6 addresses.
*
* @param {RTCSessionDescription} sessionDescription - The RTCSessionDescription
* for which IPv6 addresses will be synthesized.
* @returns {{
* ips: Map,
* lines: Array
* }}
*/
function _synthesizeIPv6Addresses0(sessionDescription) {
const sdp = sessionDescription.sdp;
let start = 0;
const lines = [];
const ips = new Map();
do {
const end = sdp.indexOf('\r\n', start);
let line;
if (end === -1) {
line = sdp.substring(start);
// Break out of the loop at the end of the iteration.
start = undefined;
} else {
line = sdp.substring(start, end);
start = end + 2;
}
if (line.startsWith('a=candidate:')) {
const candidate = line.split(' ');
if (candidate.length >= 10 && candidate[6] === 'typ') {
const ip4s = [ candidate[4] ];
let abort = false;
for (let i = 8; i < candidate.length; ++i) {
if (candidate[i] === 'raddr') {
ip4s.push(candidate[++i]);
break;
}
}
for (const ip of ip4s) {
if (ip.indexOf(':') === -1) {
ips.has(ip)
|| ips.set(ip, new Promise((resolve, reject) => {
const v = ips.get(ip);
if (v && typeof v === 'string') {
resolve(v);
} else {
POSIX.getaddrinfo(ip).then(
value => {
if (value.indexOf(':') === -1
|| value === ips.get(ip)) {
ips.delete(ip);
} else {
ips.set(ip, value);
}
resolve(value);
},
reject);
}
}));
} else {
abort = true;
break;
}
}
if (abort) {
ips.clear();
break;
}
line = candidate;
}
}
lines.push(line);
} while (start);
return {
ips,
lines
};
}
/* eslint-enable max-depth */
/**
* Implements the initial phase of the synthesis of IPv6 addresses.
*
* @param {RTCSessionDescription} sessionDescription - The RTCSessionDescription
* for which IPv6 addresses are being synthesized.
* @param {Map} ips - A Map of IPv4 addresses found in the specified
* sessionDescription to synthesized IPv6 addresses.
* @param {Array} lines - The lines of the specified sessionDescription.
* @returns {RTCSessionDescription} A RTCSessionDescription that represents the
* result of the synthesis of IPv6 addresses.
*/
function _synthesizeIPv6Addresses1(sessionDescription, ips, lines) {
if (ips.size === 0) {
return sessionDescription;
}
for (let l = 0; l < lines.length; ++l) {
const candidate = lines[l];
if (typeof candidate !== 'string') {
let ip4 = candidate[4];
let ip6 = ips.get(ip4);
ip6 && (candidate[4] = ip6);
for (let i = 8; i < candidate.length; ++i) {
if (candidate[i] === 'raddr') {
ip4 = candidate[++i];
(ip6 = ips.get(ip4)) && (candidate[i] = ip6);
break;
}
}
lines[l] = candidate.join(' ');
}
}
return new RTCSessionDescription({
sdp: lines.join('\r\n'),
type: sessionDescription.type
});
}

143
react/features/base/lib-jitsi-meet/native/polyfills-webrtc.js
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@ -1,144 +1,21 @@
(global => {
const {
MediaStream,
MediaStreamTrack,
RTCPeerConnection,
RTCSessionDescription,
getUserMedia
} = require('react-native-webrtc');
import {
MediaStream,
MediaStreamTrack,
RTCSessionDescription,
getUserMedia
} from 'react-native-webrtc';
import RTCPeerConnection from './RTCPeerConnection';
(global => {
if (typeof global.webkitMediaStream === 'undefined') {
global.webkitMediaStream = MediaStream;
}
if (typeof global.MediaStreamTrack === 'undefined') {
global.MediaStreamTrack = MediaStreamTrack;
}
if (typeof global.webkitRTCPeerConnection === 'undefined') {
// XXX At the time of this writing extending RTCPeerConnection using ES6
// 'class' and 'extends' causes a runtime error related to the attempt
// to define the onaddstream property setter. The error mentions that
// babelHelpers.set is undefined which appears to be a thing inside
// React Native's packager. As a workaround, extend using the pre-ES6
// way.
/* eslint-disable no-inner-declarations */
/**
* The RTCPeerConnection provided by react-native-webrtc fires
* onaddstream before it remembers remotedescription (and thus makes it
* available to API clients). Because that appears to be a problem for
* lib-jitsi-meet which has been successfully running
* on Chrome, Firefox, Temasys, etc. for a very long time, attempt to
* meets its expectations (by extending RTCPPeerConnection).
*
* @class
*/
function _RTCPeerConnection(...args) {
/* eslint-disable no-invalid-this */
RTCPeerConnection.apply(this, args);
this.onaddstream = (...args) => // eslint-disable-line no-shadow
(this._onaddstreamQueue
? this._queueOnaddstream
: this._invokeOnaddstream)
.apply(this, args);
// Shadow RTCPeerConnection's onaddstream but after
// _RTCPeerConnection has assigned to the property in question.
// Defining the property on _RTCPeerConnection's prototype may (or
// may not, I don't know) work but I don't want to try because the
// following approach appears to work and I understand it.
Object.defineProperty(this, 'onaddstream', {
configurable: true,
enumerable: true,
get() {
return this._onaddstream;
},
set(value) {
this._onaddstream = value;
}
});
/* eslint-enable no-invalid-this */
}
/* eslint-enable no-inner-declarations */
_RTCPeerConnection.prototype
= Object.create(RTCPeerConnection.prototype);
_RTCPeerConnection.prototype.constructor = _RTCPeerConnection;
_RTCPeerConnection.prototype._invokeOnaddstream = function(...args) {
const onaddstream = this._onaddstream;
let r;
if (onaddstream) {
r = onaddstream.apply(this, args);
}
return r;
};
_RTCPeerConnection.prototype._invokeQueuedOnaddstream = function(q) {
q && q.every(function(args) {
try {
this._invokeOnaddstream(...args);
} catch (e) {
// TODO Determine whether the combination of the standard
// setRemoteDescription and onaddstream results in a similar
// swallowing of errors.
console && console.error && console.error(e);
}
return true;
}, this);
};
_RTCPeerConnection.prototype._queueOnaddstream = function(...args) {
this._onaddstreamQueue.push(Array.from(args));
};
_RTCPeerConnection.prototype.setRemoteDescription
= function(sessionDescription, successCallback, errorCallback) {
// Ensure I'm not remembering onaddstream invocations from
// previous setRemoteDescription calls. I shouldn't be but...
// anyway.
this._onaddstreamQueue = [];
return RTCPeerConnection.prototype.setRemoteDescription.call(
this,
sessionDescription,
(...args) => {
let r;
let q;
try {
if (successCallback) {
r = successCallback(...args);
}
} finally {
q = this._onaddstreamQueue;
this._onaddstreamQueue = undefined;
}
this._invokeQueuedOnaddstream(q);
return r;
},
(...args) => {
let r;
this._onaddstreamQueue = undefined;
if (errorCallback) {
r = errorCallback(...args);
}
return r;
});
};
global.webkitRTCPeerConnection = _RTCPeerConnection;
global.webkitRTCPeerConnection = RTCPeerConnection;
}
if (typeof global.RTCSessionDescription === 'undefined') {
global.RTCSessionDescription = RTCSessionDescription;

3
react/features/base/react-native/POSIX.js vendored Normal file
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@ -0,0 +1,3 @@
import { NativeModules } from 'react-native';
export default NativeModules.POSIX;

1
react/features/base/react-native/index.js vendored Normal file
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@ -0,0 +1 @@
export { default as POSIX } from './POSIX';