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Diffstat (limited to 'module/common/JsEngine.py')
| -rw-r--r-- | module/common/JsEngine.py | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/module/common/JsEngine.py b/module/common/JsEngine.py deleted file mode 100644 index 576be2a1b..000000000 --- a/module/common/JsEngine.py +++ /dev/null @@ -1,162 +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 -from urllib import quote - - -ENGINE = "" - -DEBUG = False -JS = False -PYV8 = False -RHINO = False - - -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" - JS = True - except: - pass - -if not ENGINE or DEBUG: - try: - find_module("PyV8") - ENGINE = "pyv8" - PYV8 = True - except: - pass - -if not ENGINE or DEBUG: - 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" - RHINO = True - 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 == "pyv8" or (DEBUG and PYV8): - import PyV8 - global PyV8 - - self.init = True - - if type(script) == unicode: - script = script.encode("utf8") - - if not ENGINE: - raise Exception("No JS Engine") - - if not DEBUG: - if ENGINE == "pyv8": - return self.eval_pyv8(script) - elif ENGINE == "js": - return self.eval_js(script) - elif ENGINE == "rhino": - return self.eval_rhino(script) - else: - results = [] - if PYV8: - res = self.eval_pyv8(script) - print "PyV8:", res - results.append(res) - if JS: - res = self.eval_js(script) - print "JS:", res - results.append(res) - if RHINO: - res = self.eval_rhino(script) - print "Rhino:", res - results.append(res) - - warning = False - for x in results: - for y in results: - if x != y: - warning = True - - if warning: print "### WARNING ###: Different results" - - return results[0] - - def eval_pyv8(self, script): - rt = PyV8.JSContext() - rt.enter() - return rt.eval(script) - - def eval_js(self, script): - script = "print(eval(unescape('%s')))" % quote(script) - 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(unescape('%s')))" % quote(script) - 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.decode("utf8").encode("ISO-8859-1") - - def error(self): - return _("No js engine detected, please install either Spidermonkey, ossp-js, pyv8 or rhino") - -if __name__ == "__main__": - js = JsEngine() - - test = u'"ü"+"ä"' - js.eval(test)
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