Delete lab2/src/moss.pl

This commit is contained in:
AAYUSH VATS VATS 2024-09-03 00:27:02 +05:30
parent b70fa847f3
commit 894464608c
1 changed files with 0 additions and 358 deletions

View File

@ -1,358 +0,0 @@
#!/usr/bin/env perl
#
# Please read all the comments down to the line that says "STOP".
# These comments are divided into three sections:
#
# 1. usage instructions
# 2. installation instructions
# 3. standard copyright
#
# Feel free to share this script with other instructors of programming
# classes, but please do not place the script in a publicly accessible
# place. Comments, questions, and bug reports should be sent to
# moss-request@moss.stanford.edu.
#
# IMPORTANT: This script is known to work on Unix and on Windows using Cygwin.
# It is not known to work on other ways of using Perl under Windows. If the
# script does not work for you under Windows, you can try the email-based
# version for Windows (available on the Moss home page).
#
#
# Section 1. Usage instructions
#
# moss [-l language] [-d] [-b basefile1] ... [-b basefilen] [-m #] [-c "string"] file1 file2 file3 ...
#
# The -l option specifies the source language of the tested programs.
# Moss supports many different languages; see the variable "languages" below for the
# full list.
#
# Example: Compare the lisp programs foo.lisp and bar.lisp:
#
# moss -l lisp foo.lisp bar.lisp
#
#
# The -d option specifies that submissions are by directory, not by file.
# That is, files in a directory are taken to be part of the same program,
# and reported matches are organized accordingly by directory.
#
# Example: Compare the programs foo and bar, which consist of .c and .h
# files in the directories foo and bar respectively.
#
# moss -d foo/*.c foo/*.h bar/*.c bar/*.h
#
# Example: Each program consists of the *.c and *.h files in a directory under
# the directory "assignment1."
#
# moss -d assignment1/*/*.h assignment1/*/*.c
#
#
# The -b option names a "base file". Moss normally reports all code
# that matches in pairs of files. When a base file is supplied,
# program code that also appears in the base file is not counted in matches.
# A typical base file will include, for example, the instructor-supplied
# code for an assignment. Multiple -b options are allowed. You should
# use a base file if it is convenient; base files improve results, but
# are not usually necessary for obtaining useful information.
#
# IMPORTANT: Unlike previous versions of moss, the -b option *always*
# takes a single filename, even if the -d option is also used.
#
# Examples:
#
# Submit all of the C++ files in the current directory, using skeleton.cc
# as the base file:
#
# moss -l cc -b skeleton.cc *.cc
#
# Submit all of the ML programs in directories asn1.96/* and asn1.97/*, where
# asn1.97/instructor/example.ml and asn1.96/instructor/example.ml contain the base files.
#
# moss -l ml -b asn1.97/instructor/example.ml -b asn1.96/instructor/example.ml -d asn1.97/*/*.ml asn1.96/*/*.ml
#
# The -m option sets the maximum number of times a given passage may appear
# before it is ignored. A passage of code that appears in many programs
# is probably legitimate sharing and not the result of plagiarism. With -m N,
# any passage appearing in more than N programs is treated as if it appeared in
# a base file (i.e., it is never reported). Option -m can be used to control
# moss' sensitivity. With -m 2, moss reports only passages that appear
# in exactly two programs. If one expects many very similar solutions
# (e.g., the short first assignments typical of introductory programming
# courses) then using -m 3 or -m 4 is a good way to eliminate all but
# truly unusual matches between programs while still being able to detect
# 3-way or 4-way plagiarism. With -m 1000000 (or any very
# large number), moss reports all matches, no matter how often they appear.
# The -m setting is most useful for large assignments where one also a base file
# expected to hold all legitimately shared code. The default for -m is 10.
#
# Examples:
#
# moss -l pascal -m 2 *.pascal
# moss -l cc -m 1000000 -b mycode.cc asn1/*.cc
#
#
# The -c option supplies a comment string that is attached to the generated
# report. This option facilitates matching queries submitted with replies
# received, especially when several queries are submitted at once.
#
# Example:
#
# moss -l scheme -c "Scheme programs" *.sch
#
# The -n option determines the number of matching files to show in the results.
# The default is 250.
#
# Example:
# moss -c java -n 200 *.java
# The -x option sends queries to the current experimental version of the server.
# The experimental server has the most recent Moss features and is also usually
# less stable (read: may have more bugs).
#
# Example:
#
# moss -x -l ml *.ml
#
#
# Section 2. Installation instructions.
#
# You may need to change the very first line of this script
# if perl is not in /usr/bin on your system. Just replace /usr/bin
# with the pathname of the directory where perl resides.
#
#
# 3. Standard Copyright
#
#Copyright (c) 1997 The Regents of the University of California.
#All rights reserved.
#
#Permission to use, copy, modify, and distribute this software for any
#purpose, without fee, and without written agreement is hereby granted,
#provided that the above copyright notice and the following two
#paragraphs appear in all copies of this software.
#
#IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
#DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
#OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
#CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
#INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
#AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
#ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
#PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#
#
# STOP. It should not be necessary to change anything below this line
# to use the script.
#
use IO::Socket;
#
# As of the date this script was written, the following languages were supported. This script will work with
# languages added later however. Check the moss website for the full list of supported languages.
#
@languages = ("c", "cc", "java", "ml", "pascal", "ada", "lisp", "scheme", "haskell", "fortran", "ascii", "vhdl", "perl", "matlab", "python", "mips", "prolog", "spice", "vb", "csharp", "modula2", "a8086", "javascript", "plsql");
$server = 'moss.stanford.edu';
$port = '7690';
$noreq = "Request not sent.";
$usage = "usage: moss [-x] [-l language] [-d] [-b basefile1] ... [-b basefilen] [-m #] [-c \"string\"] file1 file2 file3 ...";
#
# The userid is used to authenticate your queries to the server; don't change it!
#
$userid=717747575;
#
# Process the command line options. This is done in a non-standard
# way to allow multiple -b's.
#
$opt_l = "c"; # default language is c
$opt_m = 10;
$opt_d = 0;
$opt_x = 0;
$opt_c = "";
$opt_n = 250;
$bindex = 0; # this becomes non-zero if we have any base files
while (@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) {
($first,$rest) = ($1,$2);
shift(@ARGV);
if ($first eq "d") {
$opt_d = 1;
next;
}
if ($first eq "b") {
if($rest eq '') {
die "No argument for option -b.\n" unless @ARGV;
$rest = shift(@ARGV);
}
$opt_b[$bindex++] = $rest;
next;
}
if ($first eq "l") {
if ($rest eq '') {
die "No argument for option -l.\n" unless @ARGV;
$rest = shift(@ARGV);
}
$opt_l = $rest;
next;
}
if ($first eq "m") {
if($rest eq '') {
die "No argument for option -m.\n" unless @ARGV;
$rest = shift(@ARGV);
}
$opt_m = $rest;
next;
}
if ($first eq "c") {
if($rest eq '') {
die "No argument for option -c.\n" unless @ARGV;
$rest = shift(@ARGV);
}
$opt_c = $rest;
next;
}
if ($first eq "n") {
if($rest eq '') {
die "No argument for option -n.\n" unless @ARGV;
$rest = shift(@ARGV);
}
$opt_n = $rest;
next;
}
if ($first eq "x") {
$opt_x = 1;
next;
}
#
# Override the name of the server. This is used for testing this script.
#
if ($first eq "s") {
$server = shift(@ARGV);
next;
}
#
# Override the port. This is used for testing this script.
#
if ($first eq "p") {
$port = shift(@ARGV);
next;
}
die "Unrecognized option -$first. $usage\n";
}
#
# Check a bunch of things first to ensure that the
# script will be able to run to completion.
#
#
# Make sure all the argument files exist and are readable.
#
print "Checking files . . . \n";
$i = 0;
while($i < $bindex)
{
die "Base file $opt_b[$i] does not exist. $noreq\n" unless -e "$opt_b[$i]";
die "Base file $opt_b[$i] is not readable. $noreq\n" unless -r "$opt_b[$i]";
die "Base file $opt_b is not a text file. $noreq\n" unless -T "$opt_b[$i]";
$i++;
}
foreach $file (@ARGV)
{
die "File $file does not exist. $noreq\n" unless -e "$file";
die "File $file is not readable. $noreq\n" unless -r "$file";
die "File $file is not a text file. $noreq\n" unless -T "$file";
}
if ("@ARGV" eq '') {
die "No files submitted.\n $usage";
}
print "OK\n";
#
# Now the real processing begins.
#
$sock = new IO::Socket::INET (
PeerAddr => $server,
PeerPort => $port,
Proto => 'tcp',
);
die "Could not connect to server $server: $!\n" unless $sock;
$sock->autoflush(1);
sub read_from_server {
$msg = <$sock>;
print $msg;
}
sub upload_file {
local ($file, $id, $lang) = @_;
#
# The stat function does not seem to give correct filesizes on windows, so
# we compute the size here via brute force.
#
open(F,$file);
$size = 0;
while (<F>) {
$size += length($_);
}
close(F);
print "Uploading $file ...";
print $sock "file $id $lang $size $file\n";
open(F,$file);
while (<F>) {
print $sock $_;
}
close(F);
print "done.\n";
}
print $sock "moss $userid\n"; # authenticate user
print $sock "directory $opt_d\n";
print $sock "X $opt_x\n";
print $sock "maxmatches $opt_m\n";
print $sock "show $opt_n\n";
#
# confirm that we have a supported languages
#
print $sock "language $opt_l\n";
$msg = <$sock>;
chop($msg);
if ($msg eq "no") {
print $sock "end\n";
die "Unrecognized language $opt_l.";
}
# upload any base files
$i = 0;
while($i < $bindex) {
&upload_file($opt_b[$i++],0,$opt_l);
}
$setid = 1;
foreach $file (@ARGV) {
&upload_file($file,$setid++,$opt_l);
}
print $sock "query 0 $opt_c\n";
print "Query submitted. Waiting for the server's response.\n";
&read_from_server();
print $sock "end\n";
close($sock);