QA: add support for running measurement_kit

This will be very helpful for #810.

It will allow us, in fact, to compare the result obtained by MK to the one
obtained by miniooni in specific censorship conditions.

QA/common.py

@@ -25,7 +25,9 @@ def execute_jafar_and_miniooni(ooni_exe, outfile, experiment, tag, args):
         [
             "./jafar",
             "-main-command",
-            "{} -no '{}' --home /tmp {}".format(ooni_exe, tmpoutfile, experiment),
+            "./QA/minioonilike.py {} -n -o '{}' --home /tmp {}".format(
+                ooni_exe, tmpoutfile, experiment
+            ),
             "-main-user",
             "nobody",  # should be present on Unix
             "-tag",

QA/minioonilike.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+
+""" This script takes in input the name of the tool to run followed by
+    arguments and followed by the nettest name. The format recognized is
+    the same of miniooni. Depending on the tool that we want to run, we
+    reorder arguments so that they make sense for the tool.
+
+    This is necessary because, albeit miniooni, MK, and OONI v2.x have
+    more or less the same arguments, there are some differences. We could
+    modify other tools to match miniooni, but this seems useless. """
+
+import argparse
+import shlex
+import sys
+
+sys.path.insert(0, ".")
+import common
+
+
+def main():
+    apa = argparse.ArgumentParser()
+    apa.add_argument("command", nargs=1, help="command to execute")
+
+    # subset of arguments accepted by miniooni
+    apa.add_argument(
+        "-n", "--no-collector", action="count", help="don't submit measurement"
+    )
+    apa.add_argument("-o", "--reportfile", help="specify report file to use")
+    apa.add_argument("-i", "--input", help="input for nettests taking an input")
+    apa.add_argument("--home", help="override home directory")
+    apa.add_argument("nettest", nargs=1, help="nettest to run")
+    out = apa.parse_args()
+    command, nettest = out.command[0], out.nettest[0]
+
+    if "miniooni" not in command and "measurement_kit" not in command:
+        raise RuntimeError("unrecognized tool")
+
+    args = []
+    args.append(command)
+    if out.home and "miniooni" in command:
+        args.extend(["--home", out.home])  # home applies to miniooni only
+    if out.input:
+        if "miniooni" in command:
+            args.extend(["-i", out.input])  # input is -i for miniooni
+    if out.no_collector:
+        args.append("-n")
+    if out.reportfile:
+        args.extend(["-o", out.reportfile])
+    args.append(nettest)
+    if out.input and "measurement_kit" in command:
+        if nettest == "web_connectivity":
+            args.extend(["-u", out.input])  # MK's Web Connectivity uses -u for input
+
+    sys.stderr.write("minioonilike.py: {}\n".format(shlex.join(args)))
+    common.execute(args)
+
+
+if __name__ == "__main__":
+    main()