1 files changed, 97 insertions, 0 deletions
diff --git a/libmproxy/script/script.py b/libmproxy/script/script.py
new file mode 100644
index 00000000..498caf94
--- /dev/null
+++ b/libmproxy/script/script.py
@@ -0,0 +1,97 @@
+"""
+The script object representing mitmproxy inline scripts.
+Script objects know nothing about mitmproxy or mitmproxy's API - this knowledge is provided
+by the mitmproxy-specific ScriptContext.
+"""
+from __future__ import absolute_import, print_function, division
+import os
+import shlex
+import traceback
+import sys
+from ..exceptions import ScriptException
+
+
+class Script(object):
+    """
+    Script object representing an inline script.
+    """
+
+    def __init__(self, command, context):
+        self.command = command
+        self.args = self.parse_command(command)
+        self.ctx = context
+        self.ns = None
+        self.load()
+
+    @property
+    def filename(self):
+        return self.args[0]
+
+    @staticmethod
+    def parse_command(command):
+        if not command or not command.strip():
+            raise ScriptException("Empty script command.")
+        if os.name == "nt":  # Windows: escape all backslashes in the path.
+            backslashes = shlex.split(command, posix=False)[0].count("\\")
+            command = command.replace("\\", "\\\\", backslashes)
+        args = shlex.split(command)
+        args[0] = os.path.expanduser(args[0])
+        if not os.path.exists(args[0]):
+            raise ScriptException(
+                ("Script file not found: %s.\r\n"
+                 "If your script path contains spaces, "
+                 "make sure to wrap it in additional quotes, e.g. -s \"'./foo bar/baz.py' --args\".") %
+                args[0])
+        elif os.path.isdir(args[0]):
+            raise ScriptException("Not a file: %s" % args[0])
+        return args
+
+    def load(self):
+        """
+            Loads an inline script.
+
+            Returns:
+                The return value of self.run("start", ...)
+
+            Raises:
+                ScriptException on failure
+        """
+        if self.ns is not None:
+            self.unload()
+        script_dir = os.path.dirname(os.path.abspath(self.args[0]))
+        self.ns = {'__file__': os.path.abspath(self.args[0])}
+        sys.path.append(script_dir)
+        try:
+            execfile(self.args[0], self.ns, self.ns)
+        except Exception as e:
+            # Python 3: use exception chaining, https://www.python.org/dev/peps/pep-3134/
+            raise ScriptException(traceback.format_exc(e))
+        finally:
+            sys.path.pop()
+        return self.run("start", self.args)
+
+    def unload(self):
+        try:
+            return self.run("done")
+        finally:
+            self.ns = None
+
+    def run(self, name, *args, **kwargs):
+        """
+            Runs an inline script hook.
+
+            Returns:
+                The return value of the method.
+                None, if the script does not provide the method.
+
+            Raises:
+                ScriptException if there was an exception.
+        """
+        f = self.ns.get(name)
+        if f:
+            try:
+                return f(self.ctx, *args, **kwargs)
+            except Exception as e:
+                raise ScriptException(traceback.format_exc(e))
+        else:
+            return None
+\ No newline at end of file