diff options
Diffstat (limited to 'libproxy/modules/pacrunner_mozjs.cpp')
| -rw-r--r-- | libproxy/modules/pacrunner_mozjs.cpp | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/libproxy/modules/pacrunner_mozjs.cpp b/libproxy/modules/pacrunner_mozjs.cpp deleted file mode 100644 index 129d4b5..0000000 --- a/libproxy/modules/pacrunner_mozjs.cpp +++ /dev/null @@ -1,208 +0,0 @@ -/******************************************************************************* - * libproxy - A library for proxy configuration - * Copyright (C) 2006 Nathaniel McCallum <nathaniel@natemccallum.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - ******************************************************************************/ - -#include <cstring> // ? -#include <unistd.h> // gethostname - -#include "../extension_pacrunner.hpp" -using namespace libproxy; - -// Work around a mozjs include bug -#ifndef JS_HAS_FILE_OBJECT -#define JS_HAS_FILE_OBJECT 0 -#endif -#ifdef WIN32 -#ifndef XP_WIN -#define XP_WIN -#endif -#endif -#pragma GCC diagnostic ignored "-Winvalid-offsetof" -#include <jsapi.h> -#pragma GCC diagnostic error "-Winvalid-offsetof" -#include <js/Initialization.h> -#include <js/CallArgs.h> -#include <js/CompilationAndEvaluation.h> -#include <js/MemoryFunctions.h> -#include <js/SourceText.h> - -#include "pacutils.h" - -#ifndef INET_ADDRSTRLEN -#define INET_ADDRSTRLEN 16 -#endif - -#ifndef INET6_ADDRSTRLEN -#define INET6_ADDRSTRLEN 46 -#endif - -static void dnsResolve_(JSContext *cx, JSString *hostname, JS::CallArgs *argv) { - char *tmp; - // Get hostname argument - JS::RootedString str(cx, hostname); - JS::UniqueChars chars = JS_EncodeStringToUTF8(cx, str); - const char *val = chars.get(); - - // Set the default return value - argv->rval().setNull(); - - // Look it up - struct addrinfo *info = nullptr; - if (getaddrinfo(val, NULL, NULL, &info)) - goto out; - - // Allocate the IP address - tmp = (char *) JS_malloc(cx, INET6_ADDRSTRLEN+1); - memset(tmp, 0, INET6_ADDRSTRLEN+1); - - // Try for IPv4 and IPv6 - if (getnameinfo(info->ai_addr, info->ai_addrlen, - tmp, INET6_ADDRSTRLEN+1, - NULL, 0, - NI_NUMERICHOST)) goto out; - - // We succeeded - argv->rval().setString(JS_NewStringCopyZ(cx, tmp)); - tmp = nullptr; - - out: - if (info) freeaddrinfo(info); -} - -static bool dnsResolve(JSContext *cx, unsigned argc, JS::Value *vp) { - JS::CallArgs argv=JS::CallArgsFromVp(argc,vp); - dnsResolve_(cx, argv[0].toString(), &argv); - return true; -} - -static bool myIpAddress(JSContext *cx, unsigned argc, JS::Value *vp) { - JS::CallArgs argv=JS::CallArgsFromVp(argc,vp); - char *hostname = (char *) JS_malloc(cx, 1024); - hostname[1023] = '\0'; - - if (!gethostname(hostname, 1023)) { - JSString *myhost = JS_NewStringCopyN(cx, hostname, strlen(hostname)); - dnsResolve_(cx, myhost, &argv); - } else { - argv.rval().setNull(); - } - - JS_free(cx, hostname); - return true; -} - -// Setup Javascript global class -// This MUST be a static global -static JSClass cls = { - "global", JSCLASS_GLOBAL_FLAGS, -}; - -class mozjs_pacrunner : public pacrunner { -public: - mozjs_pacrunner(const string &pac, const url& pacurl) : pacrunner(pac, pacurl) { - - // Set defaults - this->jsctx = nullptr; - JS_Init(); - - // Initialize Javascript context - if (!(this->jsctx = JS_NewContext(1024 * 1024))) goto error; - { - if (!JS::InitSelfHostedCode(this->jsctx)) goto error; - - JS::RootedValue rval(this->jsctx); - JS::RealmOptions realm_opts; - - this->jsglb = new JS::Heap<JSObject*>(JS_NewGlobalObject( - this->jsctx, &cls, - nullptr, JS::DontFireOnNewGlobalHook, - realm_opts)); - - if (!(this->jsglb)) goto error; - JS::RootedObject global(this->jsctx,this->jsglb->get()); - if (!(this->jsar = new JSAutoRealm(this->jsctx, global))) goto error; - - // Define Javascript functions - JS_DefineFunction(this->jsctx, global, "dnsResolve", dnsResolve, 1, 0); - JS_DefineFunction(this->jsctx, global, "myIpAddress", myIpAddress, 0, 0); - JS::CompileOptions options(this->jsctx); - - JS::SourceText<mozilla::Utf8Unit> routines, pac_source; - if (!routines.init(this->jsctx, - JAVASCRIPT_ROUTINES, - strlen(JAVASCRIPT_ROUTINES), - JS::SourceOwnership::Borrowed)) - goto error; - - if (!pac_source.init(this->jsctx, - pac.c_str(), - pac.length(), - JS::SourceOwnership::Borrowed)) - goto error; - - - JS::Evaluate(this->jsctx, options, routines, JS::MutableHandleValue(&rval)); - - // Add PAC to the environment - JS::Evaluate(this->jsctx, options, pac_source, JS::MutableHandleValue(&rval)); - return; - } - error: - if (this->jsctx) JS_DestroyContext(this->jsctx); - throw bad_alloc(); - } - - ~mozjs_pacrunner() { - if (this->jsar) delete this->jsar; - if (this->jsglb) delete this->jsglb; - if (this->jsctx) JS_DestroyContext(this->jsctx); - JS_ShutDown(); - } - - string run(const url& url_) { - // Build arguments to the FindProxyForURL() function - string tmpurl(url_.to_string()); - string tmphost(url_.get_host()); - JS::AutoValueArray<2> args(this->jsctx); - args[0].setString(JS_NewStringCopyZ(this->jsctx, tmpurl.c_str())); - args[1].setString(JS_NewStringCopyZ(this->jsctx, tmphost.c_str())); - - // Find the proxy (call FindProxyForURL()) - JS::RootedValue rval(this->jsctx); - JS::RootedObject global(this->jsctx,this->jsglb->get()); - bool result = JS_CallFunctionName(this->jsctx, global, "FindProxyForURL", args, &rval); - if (!result) return ""; - if (!rval.isString()) - return ""; - - JS::RootedString s(this->jsctx, rval.toString()); - JS::UniqueChars chars = JS_EncodeStringToUTF8(this->jsctx, s); - const char *tmpanswer = chars.get(); - string answer = string(tmpanswer); - - if (answer == "undefined") return ""; - return answer; - } - -private: - JSContext *jsctx; - JS::Heap<JSObject*> *jsglb; - JSAutoRealm *jsar; -}; - -PX_PACRUNNER_MODULE_EZ(mozjs, "JS_DefineFunction", "mozjs"); |