def recoverGrouped(addresses,data):
#change the given addresses -> 0d0a to 0a
newData = "";
lastIndex=0
for index in xrange(0,len(addresses)):
newData = newData + data[lastIndex:addresses[index]]+data[addresses[index]+2:addresses[index]+4];
lastIndex = addresses[index]+4;
newData = newData + data[lastIndex:len(data)];
# bz2.decompress does the cyclic redundancy check first and throws an exception if the file
# doesn't pass the check. If it does pass the check then we have recovered the file
try:
dec = bz2.decompress(binascii.unhexlify(newData));
print('\nRecovered the file. Check recovered.png and enter the password\n');
pngRecFile = open('recovered.png','wb');
pngRecFile.write(dec);
pngRecFile.close();
solution = raw_input("password: "******"sending solution")
payload = {'solution' : solution, 'submitbutton' : 'submit'};
HTS.postPage("https://www.hackthissite.org/missions/prog/5/index.php",payload);
sys.exit(0);
except IOError:
return;
def recoverAllCombinations(addresses,currentAddress,data):
# obtains all 2^n combinations and check if the the file is recovered. As anticipated
# this function won't be able to brute-force the solution under the time limit which is
# 10 minutes
#
global processedBranches;
if (currentAddress >= len(addresses)):
processedBranches += 1;
try:
dec = bz2.decompress(binascii.unhexlify(data));
print('\nrecovered @ recover.png\n');
pngRecFile = open('recover.png','wb');
pngRecFile.write(dec);
solution = raw_input("password: "******"sending solution")
payload = {'solution' : solution, 'submitbutton' : 'submit'};
HTS.postPage("https://www.hackthissite.org/missions/prog/5/index.php",payload);
sys.exit(0);
except IOError:
return;
else:
constructTreeRecursive(addresses,currentAddress+1,data); #unchanged
#update the addresses
newData = data[0:addresses[currentAddress]]+data[addresses[currentAddress]+2:len(data)];
addresses = updateAddresses(addresses,addresses[currentAddress]);
constructTreeRecursive(addresses,currentAddress+1,newData); #changed
def sendSolution(solution):
print("sending solution");
payload = {'solution' : solution, 'submitbutton' : 'submit'};
response = HTS.postPage("https://www.hackthissite.org/missions/prog/11/index.php",payload);
print("solution response: \n");
print(response.content);
return;
def sendResponse(decodedText):
#send back the decoded text
print(decodedText);
print("sending solution")
payload = {'solution' : decodedText, 'submitbutton' : 'submit'};
return HTS.postPage("https://www.hackthissite.org/missions/prog/2/index.php",payload);
def sendResponse(solution):
print("sending solution")
payload = {
'solution': solution,
'submitbutton': 'submit'
}
return HTS.postPage(
"https://www.hackthissite.org/missions/prog/4/index.php", payload)
def sendSolution(solution):
print("sending solution")
payload = {
'solution': solution,
'submitbutton': 'submit'
}
response = HTS.postPage(
"https://www.hackthissite.org/missions/prog/6/index.php", payload)
print("solution response: \n")
print(response.content)
def sendResponse(decodedText):
#send back the decoded text
print(decodedText)
print("sending solution")
payload = {
'solution': decodedText,
'submitbutton': 'submit'
}
return HTS.postPage(
"https://www.hackthissite.org/missions/prog/2/index.php", payload)
def sendResponse(solution):
print("sending solution")
payload = {'solution' : solution, 'submitbutton' : 'submit'};
return HTS.postPage("https://www.hackthissite.org/missions/prog/4/index.php",payload);