diff options
Diffstat (limited to 'module/JsEngine.py')
| -rw-r--r-- | module/JsEngine.py | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/module/JsEngine.py b/module/JsEngine.py deleted file mode 100644 index 0b451c9dd..000000000 --- a/module/JsEngine.py +++ /dev/null @@ -1,146 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- -""" - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, see <http://www.gnu.org/licenses/>. - - @author: RaNaN -""" - -from imp import find_module -from os.path import join, exists - -ENGINE = "" - -try: - find_module("spidermonkey") - ENGINE = "spidermonkey" -except: - pass - -if not ENGINE: - try: - find_module("PyV8") - ENGINE = "pyv8" - except: - pass - -if not ENGINE: - try: - import subprocess - - subprocess.Popen(["js", "-v"], bufsize=-1, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate() - p = subprocess.Popen(["js", "-e", "print(23+19)"], stdout=subprocess.PIPE, stderr=subprocess.PIPE) - out, err = p.communicate() - #integrity check - if out.strip() == "42": - ENGINE = "js" - except: - pass - - -if not ENGINE or ENGINE: - try: - path = "" #path where to find rhino - - if exists("/usr/share/java/js.jar"): - path = "/usr/share/java/js.jar" - elif exists("js.jar"): - path = "js.jar" - elif exists(join(pypath, "js.jar")): #may raises an exception, but js.jar wasnt found anyway - path = join(pypath, "js.jar") - - if not path: - raise Exception - - import subprocess - - p = subprocess.Popen(["java", "-cp", path, "org.mozilla.javascript.tools.shell.Main", "-e", "print(23+19)"], stdout=subprocess.PIPE, stderr=subprocess.PIPE) - out, err = p.communicate() - #integrity check - if out.strip() == "42": - ENGINE = "rhino" - except: - pass - -class JsEngine(): - def __init__(self): - self.engine = ENGINE - self.init = False - - def __nonzero__(self): - return False if not ENGINE else True - - def eval(self, script): - if not self.init: - if ENGINE == "spidermonkey": - import spidermonkey - global spidermonkey - - elif ENGINE == "pyv8": - import PyV8 - global PyV8 - - self.init = True - - if not ENGINE: - raise Exception("No JS Engine") - elif ENGINE == "spidermonkey": - return self.eval_spidermonkey(script) - elif ENGINE == "pyv8": - return self.eval_pyv8(script) - elif ENGINE == "js": - return self.eval_js(script) - elif ENGINE == "rhino": - return self.eval_rhino(script) - - - def eval_spidermonkey(self, script): - rt = spidermonkey.Runtime() - cx = rt.new_context() - return cx.execute(script) - - def eval_pyv8(self, script): - rt = PyV8.JSContext() - rt.enter() - return rt.eval(script) - - def eval_js(self, script): - script = "print(eval('%s'))" % script.replace("'", '"') - p = subprocess.Popen(["js", "-e", script], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, bufsize=-1) - out, err = p.communicate() - res = out.strip() - return res - - def eval_rhino(self, script): - script = "print(eval('%s'))" % script.replace("'", '"') - p = subprocess.Popen(["java", "-cp", path, "org.mozilla.javascript.tools.shell.Main", "-e", script], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, bufsize=-1) - out, err = p.communicate() - res = out.strip() - return res - - def error(self): - return _("No js engine detected, please install either Spidermonkey, ossp-js, pyv8 or rhino") - -if __name__ == "__main__": - js = JsEngine() - import subprocess - import spidermonkey - #import PyV8 - - test = '"a"+"b"' - - print js.eval_js(test) - print js.eval_spidermonkey(test) - print js.eval_rhino(test) - print js.eval_pyv8(test)
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