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cen.py
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from gi.repository import Gtk, Gdk
import hmac, hashlib
import os, binascii
import gnupg
from Crypto.Cipher import AES, DES3, ARC4
from Crypto.Hash import SHA
from Crypto import Random
fName = ""
docVar = "Untitled"
labelText = Gtk.Label("Working in Document: " + docVar)
labelFileName = Gtk.Label(fName)
#isNew = true if the new document haven't a name yet
isNew = 1
#isSigned = true if the document is signed
isSigned = False
decWith = ""
encWith = ""
###############################################################################################
#Encription/Decription Functions
def Generate_Key(size):
random_key = os.urandom(size)
return random_key
def make_digest(key, message):
"Return a digest for the message."
return hmac.new(key, message, hashlib.sha1).hexdigest()
def encrypt(key, message, cipher):
if cipher == 1: #AES
iv = Random.new().read(AES.block_size)
cipher = AES.new(key, AES.MODE_CTR, iv, counter=lambda: iv)
msg = iv + cipher.encrypt(message)
return msg.encode("base64")
if cipher == 2: #3DES
iv = Random.new().read(DES3.block_size)
cipher = DES3.new(key, DES3.MODE_CTR, iv, counter=lambda: iv)
msg = iv + cipher.encrypt(message)
return msg.encode("base64")
else: #RC4
iv = Random.new().read(16)
tempkey = SHA.new(key+iv).digest()
cipher = ARC4.new(tempkey)
msg = iv + cipher.encrypt(message)
return msg.encode("base64")
#Faz a decifragem de um ficheiro, totalmente ou apenas parcialmente
def decrypt(key, enc, et, sp, sf):
global encWith
if et == "A":
encWith = 1
iv = enc[:16]
cipher = AES.new(key, AES.MODE_CTR, iv, counter=lambda: iv)
enc = enc[16:]
sp = int (sp/16)
sf = int (sf/16)
return (cipher.decrypt( enc[sp*16:sf*16] ))
if et == "D":
encWith = 2
iv = enc[:8]
cipher = DES3.new(key, DES3.MODE_CTR, iv, counter=lambda: iv)
enc = enc[8:]
sp = int (sp/8)
sf = int (sf/8)
return (cipher.decrypt( enc[sp*8:sf*8] ))
if et == "R":
encWith = 3
iv = enc[:16]
tempkey = SHA.new(key+iv).digest()
cipher = ARC4.new(tempkey)
enc = enc[16:]
return (cipher.decrypt(enc))
#Save Key and Hmac in File
def Save_keys(bin_key, hmac, ct, path):
armor_key = bin_key.encode("base64")
fkey = open(path + "keys_and_iv.txt", "w")
textkey = ct+" ----- KEY BLOCK -----\n"+armor_key+"----- HMAC BLOCK -----\n"+hmac+"\n----- END BLOCK -----"
fkey.write(textkey)
fkey.close()
#Read keys from file
def Read_keys(path):
try:
fkey = open(path+"/keys_and_iv.txt", "r")
except IOError:
return False, False, False
ct = fkey.read(1)
first_line = fkey.readline()
full_file = fkey.read()
keyend = full_file.find("----- HMAC BLOCK -----\n")
macend = full_file.find("\n----- END BLOCK -----")
armor_key = full_file[:keyend]
hmac = full_file[keyend+23:macend]
fkey.close()
return (binascii.a2b_base64(armor_key)), hmac, ct
# Sign / Verify File
def generate_key(gpg, first_name, last_name, domain, passphrase=None):
"Generate a key"
params = {
'Key-Type': 'RSA',
'Key-Length': 1024,
'Subkey-Type': 'RSA',
'Subkey-Length': 1024,
'Name-Comment': 'SecuriText User',
'Expire-Date': 0,
}
params['Name-Real'] = '%s %s' % (first_name, last_name)
params['Name-Email'] = ("%s.%s@%s" % (first_name, last_name, domain)).lower()
if passphrase is None:
passphrase = ("%s%s" % (first_name[0], last_name)).lower()
params['Passphrase'] = passphrase
cmd = gpg.gen_key_input(**params)
return gpg.gen_key(cmd)
def Signature_Check(docVar):
direc = docVar+"signature.sign"
return (os.path.isfile(direc))
def Signature_Verify(docVar,fName):
gpg = gnupg.GPG(gnupghome="keys/.gnupg")
#Verificar se um ficheiro foi assinado
try:
fkey = open(docVar+"chavepublica.pem", "r")
except IOError:
print "ChavePublicaNotFound!"
return
import_result = gpg.import_keys(fkey.read())
verified = gpg.verify_file(open(docVar+"signature.sign"),fName)
return verified
##############################################################################################
#GUI functions
class OpenDialog(Gtk.Dialog):
def __init__(self, parent):
global fName
fName = ""
Gtk.Dialog.__init__(self, "Open", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_OPEN, Gtk.ResponseType.OK,
Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL))
box = self.get_content_area()
label1 = Gtk.Label("\nChoose a File to open:\n Make sure that respective \"keys_and_iv.txt\" \n is on same folder: \n")
box.add(label1)
button1 = Gtk.Button("Choose File")
button1.connect("clicked", self.on_file_clicked)
box.add(button1)
box.add(labelFileName)
self.label0 = Gtk.Label("\n Decrypt Part of File?")
box.add(self.label0)
self.switch = Gtk.Switch()
self.switch.connect("notify::active", self.on_switch_activated)
self.switch.set_active(False)
box.add(self.switch)
self.label1 = Gtk.Label("\nStarting Caracter:")
box.add(self.label1)
self.spin1 = Gtk.SpinButton()
self.spin1.set_adjustment(Gtk.Adjustment(0, 0, 100, 1, 10, 0))
box.add(self.spin1)
self.label2 = Gtk.Label("\nFinal Caracter:")
box.add(self.label2)
self.spin2 = Gtk.SpinButton()
self.spin2.set_adjustment(Gtk.Adjustment(0, 0, 100, 1, 10, 0))
box.add(self.spin2)
self.show_all()
self.switch.hide()
self.label0.hide()
self.spin1.hide()
self.label1.hide()
self.spin2.hide()
self.label2.hide()
def on_switch_activated(self, switch, gparam):
if switch.get_active():
state = "on"
self.spin1.show()
self.label1.show()
self.spin2.show()
self.label2.show()
else:
state = "off"
self.spin1.hide()
self.label1.hide()
self.spin2.hide()
self.label2.hide()
def on_dec_combo_changed(self, combo):
global decWith
tree_iter = combo.get_active_iter()
if tree_iter != None:
model = combo.get_model()
row_id, name = model[tree_iter][:2]
decWith = row_id
def on_file_clicked(self, widget):
global labelFileName
global fName
dialog = Gtk.FileChooserDialog("Please choose a file", self,
Gtk.FileChooserAction.OPEN,
(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
Gtk.STOCK_OPEN, Gtk.ResponseType.OK))
#self.add_filters(dialog)
response = dialog.run()
if response == Gtk.ResponseType.OK:
labelFileName.set_label(dialog.get_filename())
fName = dialog.get_filename()
sf = len(open(fName).read())
self.spin1.set_adjustment(Gtk.Adjustment(0, 0, sf, 1, 10, 0))
self.spin2.set_adjustment(Gtk.Adjustment(0, 0, sf, 1, 10, 0))
self.spin2.set_value(sf)
self.label0.show()
self.switch.show()
elif response == Gtk.ResponseType.CANCEL:
dialog.destroy()
dialog.destroy()
#########################
class Certificate(Gtk.Dialog):
def __init__(self, parent):
Gtk.Dialog.__init__(self, "Certificate Generation", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_OK, Gtk.ResponseType.OK,
Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL))
box = self.get_content_area()
label = Gtk.Label("We need some data:")
box.add(label)
label1 = Gtk.Label("\nFirst Name:")
box.add(label1)
self.FName = Gtk.Entry()
box.add(self.FName)
label2 = Gtk.Label("\nLast Name:")
box.add(label2)
self.LName = Gtk.Entry()
box.add(self.LName)
label4 = Gtk.Label("\nDomain:")
box.add(label4)
self.Domain = Gtk.Entry()
box.add(self.Domain)
label3 = Gtk.Label("\nPassword:")
box.add(label3)
self.Password = Gtk.Entry()
self.Password.set_invisible_char("*")
box.add(self.Password)
self.show_all()
class HelpDialog(Gtk.Dialog):
def __init__(self, parent):
Gtk.Dialog.__init__(self, "HELP", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL))
self.set_default_size(200, 250)
self.set_border_width(10)
box = self.get_content_area()
label = Gtk.Label("SECURITEXT HELP\n")
box.add(label)
buttonSave = Gtk.Button("Save")
buttonSave.connect("clicked", self.on_save_clicked)
box.add(buttonSave)
buttonSaveAs = Gtk.Button("Save As")
buttonSaveAs.connect("clicked", self.on_saveas_clicked)
box.add(buttonSaveAs)
buttonOpen = Gtk.Button("Open")
buttonOpen.connect("clicked", self.on_open_clicked)
box.add(buttonOpen)
buttonSign = Gtk.Button("Sign")
buttonSign.connect("clicked", self.on_sign_clicked)
box.add(buttonSign)
buttonCert = Gtk.Button("Certificate")
buttonCert.connect("clicked", self.on_cert_clicked)
box.add(buttonCert)
buttonCertList = Gtk.Button("Certificate list")
buttonCertList.connect("clicked", self.on_certlist_clicked)
box.add(buttonCertList)
label3 = Gtk.Label("\n")
box.add(label3)
self.show_all()
def on_save_clicked(self, combo):
dialog = Gtk.MessageDialog(self, 0, Gtk.MessageType.INFO,
Gtk.ButtonsType.OK, "Save - help")
dialog.format_secondary_text(
" If is the first time that you are saving a file it does the same as the button Save As. Else it saves the work with the same properties.")
dialog.run()
dialog.destroy()
def on_saveas_clicked(self, combo):
dialog = Gtk.MessageDialog(self, 0, Gtk.MessageType.INFO,
Gtk.ButtonsType.OK, "Save As - Help")
dialog.format_secondary_text(
" This button allows you to save a document safely, you can choose three cipher algorithms: 3Des, Aes and RC4. It also creates a file with the key and the iv used to do the encrypt. Put that file in a safe place.")
dialog.run()
dialog.destroy()
def on_open_clicked(self, combo):
dialog = Gtk.MessageDialog(self, 0, Gtk.MessageType.INFO,
Gtk.ButtonsType.OK, "Save - Help")
dialog.format_secondary_text(
" Click here if you want to open a existing file. Here you can choice if you want to decipher the full file or just a part of it. To do this we ask you for the position of first caracter to the last caracter you want.")
dialog.run()
dialog.destroy()
def on_sign_clicked(self, combo):
dialog = Gtk.MessageDialog(self, 0, Gtk.MessageType.INFO,
Gtk.ButtonsType.OK, "Sign - Help")
dialog.format_secondary_text(
"Signs the document with your private key.")
dialog.run()
dialog.destroy()
def on_cert_clicked(self, combo):
dialog = Gtk.MessageDialog(self, 0, Gtk.MessageType.INFO,
Gtk.ButtonsType.OK, "New Certificate - Help")
dialog.format_secondary_text(
" Here you can create a new certificate, it creates a private and a public key.")
dialog.run()
dialog.destroy()
def on_certlist_clicked(self, combo):
dialog = Gtk.MessageDialog(self, 0, Gtk.MessageType.INFO,
Gtk.ButtonsType.OK, "Certificate lists - Help")
dialog.format_secondary_text(
"This lists all the certificates.")
dialog.run()
dialog.destroy()
class CertificateDialog(Gtk.Dialog):
def __init__(self, parent):
Gtk.Dialog.__init__(self, "Certificate Dialog", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL))
gpg = gnupg.GPG(gnupghome="keys/.gnupg")
box = self.get_content_area()
label = Gtk.Label("Public keys listed in your key ring!\n")
box.add(label)
self.set_default_size(200, 400)
self.liststore = Gtk.ListStore(str, str)
public_keys = gpg.list_keys()
for keys in public_keys:
self.liststore.append([str(keys['uids'][0]),str(keys['keyid'])])
treeview = Gtk.TreeView(model=self.liststore)
renderer_text = Gtk.CellRendererText()
column_text = Gtk.TreeViewColumn("Name", renderer_text, text=0)
treeview.append_column(column_text)
renderer_text2 = Gtk.CellRendererText()
column_text2 = Gtk.TreeViewColumn("Public Key ID",renderer_text2, text=1)
treeview.append_column(column_text2)
scrolled_window = Gtk.ScrolledWindow()
scrolled_window.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC)
self.vbox.pack_start(scrolled_window, True, True, 0)
scrolled_window.show()
# create a table of 10 by 10 squares.
table = Gtk.Table(10, 10, False)
# set the spacing to 10 on x and 10 on y
table.set_row_spacings(10)
table.set_col_spacings(10)
# pack the table into the scrolled window
scrolled_window.add_with_viewport(treeview)
table.show()
box.add(treeview)
self.show_all()
class InforDialog(Gtk.Dialog):
def __init__(self, parent):
Gtk.Dialog.__init__(self, "INFO", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL))
box = self.get_content_area()
label = Gtk.Label("SECURITEXT\n")
box.add(label)
image = Gtk.Image()
image.set_from_file("securitext.png")
image.show()
box.add(image)
label1 = Gtk.Label("\nThe Most Resilient Text Editor in Covilha\n\n")
box.add(label1)
label2 = Gtk.Label("Created by:\n")
box.add(label2)
label3 = Gtk.Label("Cristiano Ramos")
box.add(label3)
label4 = Gtk.Label("Micael Grilo")
box.add(label4)
label5 = Gtk.Label("Pedro Pinto")
box.add(label5)
label6 = Gtk.Label("Tiago Bernardo")
box.add(label6)
labelNewLine = Gtk.Label("\n\n")
box.add(labelNewLine)
self.show_all()
class WarningDialog(Gtk.Dialog):
def __init__(self, parent, flag):
Gtk.Dialog.__init__(self, "INFO:", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_OK, Gtk.ResponseType.OK))
box = self.get_content_area()
if flag:
label = Gtk.Label('FILE OK : No data corruption!')
else:
label = Gtk.Label('WARNING: Data corruption!')
box.add(label)
self.show_all()
self.show_all()
class InfoDialog(Gtk.Dialog):
def __init__(self, parent, flag):
Gtk.Dialog.__init__(self, "INFO:", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_OK, Gtk.ResponseType.OK))
box = self.get_content_area()
if flag:
label = Gtk.Label('ATENTION: The file "keys_and_iv.txt" contains secret key to decrypt file!\nIt is stored on same folder!')
else:
label = Gtk.Label('ERROR: "keys_and_iv.txt" Nor Found!')
box.add(label)
self.show_all()
class SignatureDialog(Gtk.Dialog):
def __init__(self, parent, verified):
global isSigned
Gtk.Dialog.__init__(self, "INFO:", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_OK, Gtk.ResponseType.OK))
box = self.get_content_area()
if verified:
isSigned = True
Message = "Valid Signature!\n" + "User Name: " + verified.username + "\nKey id: " + verified.key_id + "\nTrust Level: " + verified.trust_text + "\n"
else:
isSigned = False
Message = "Invalid Signature!"
label = Gtk.Label(Message)
box.add(label)
self.show_all()
class InputDialog(Gtk.Dialog):
def __init__(self, parent):
Gtk.Dialog.__init__(self, "SIGN:", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_OK, Gtk.ResponseType.OK,
Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL))
gpg = gnupg.GPG(gnupghome="keys/.gnupg")
box = self.get_content_area()
label = Gtk.Label("Choose a certificate to sign the file!")
box.add(label)
self.keyid = ""
self.keylist = {}
name_store = Gtk.ListStore(str)
private_keys = gpg.list_keys(True)
for keys in private_keys:
name_store.append([str(keys['uids'][0])])
self.keylist[str(keys['uids'][0])] = str(keys['keyid'])
name_combo = Gtk.ComboBox.new_with_model(name_store)
name_combo.connect("changed", self.on_name_combo_changed)
renderer_text = Gtk.CellRendererText()
name_combo.set_active(0)
name_combo.pack_start(renderer_text, True)
name_combo.add_attribute(renderer_text, "text", 0)
box.add(name_combo)
label = Gtk.Label('Insert password of certificate to sign File!\n')
box.add(label)
self.password = Gtk.Entry()
self.password.set_visibility(False)
box.add(self.password)
if len(self.keylist) == 0:
label = Gtk.Label("No certificates available in keyrings,\nplease create a certificate first!")
box.add(label)
label.show()
else:
self.show_all()
def on_name_combo_changed(self, combo):
tree_iter = combo.get_active_iter()
if tree_iter != None:
model = combo.get_model()
name = model[tree_iter][0]
self.keyid =self.keylist[name]
class ErrorDialog(Gtk.Dialog):
def __init__(self, parent, error):
Gtk.Dialog.__init__(self, "INFO:", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_OK, Gtk.ResponseType.OK))
box = self.get_content_area()
label = Gtk.Label(error)
box.add(label)
self.show_all()
class SaveDialog(Gtk.Dialog):
def __init__(self, parent):
Gtk.Dialog.__init__(self, "SAVE", parent,
Gtk.DialogFlags.MODAL, buttons=(
Gtk.STOCK_SAVE, Gtk.ResponseType.OK,
Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL))
box = self.get_content_area()
label = Gtk.Label("Saving your file as:\n")
box.add(label)
dialog = Gtk.FileChooserDialog("Save File:", None,
Gtk.FileChooserAction.SAVE,
(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
Gtk.STOCK_SAVE, Gtk.ResponseType.OK))
response = dialog.run()
if response == Gtk.ResponseType.OK:
fullpath = dialog.get_filename()
dialog.destroy()
fname = os.path.basename(fullpath)
dirname = fname.split(".")[0]
path = os.path.dirname(fullpath)
self.path = path+"/"+dirname+"/"
self.name = fname
label1 = Gtk.Label(self.path+fname)
box.add(label1)
label2 = Gtk.Label("\nEncrypt with:\n")
box.add(label2)
enc_store = Gtk.ListStore(int, str)
enc_store.append([1, "AES"])
enc_store.append([2, "3DES"])
enc_store.append([3, "RC4"])
vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
enc_combo = Gtk.ComboBox.new_with_model_and_entry(enc_store)
enc_combo.connect("changed", self.on_enc_combo_changed)
enc_combo.set_entry_text_column(1)
enc_combo.set_active(0)
vbox.pack_start(enc_combo, False, False, 0)
box.add(vbox)
labelNewLine = Gtk.Label("\n\n")
box.add(labelNewLine)
self.show_all()
elif response == Gtk.ResponseType.CANCEL:
dialog.destroy()
return Gtk.ResponseType.CANCEL
def on_enc_combo_changed(self, combo):
global encWith
tree_iter = combo.get_active_iter()
if tree_iter != None:
model = combo.get_model()
row_id, name = model[tree_iter][:2]
encWith = row_id
#print encWith
class TextViewWindow(Gtk.Window):
def __init__(self):
Gtk.Window.__init__(self, title="SecuriText")
self.set_default_size(1000, 700)
self.grid = Gtk.Grid()
self.add(self.grid)
self.create_textview()
self.create_toolbar()
self.create_status()
def create_toolbar(self):
toolbar = Gtk.Toolbar()
#context = toolbar.get_style_context()
#context.add_class(Gtk.STYLE_CLASS_PRIMARY_TOOLBAR)
self.grid.attach(toolbar, 0, 0, 3, 1)
button_new = Gtk.ToolButton.new_from_stock(Gtk.STOCK_NEW)
button_new.set_is_important(True)
button_new.connect("clicked", self.on_new_clicked)
toolbar.insert(button_new, 0)
button_save = Gtk.ToolButton.new_from_stock(Gtk.STOCK_SAVE)
button_save.set_is_important(True)
button_save.connect("clicked", self.on_save_clicked)
toolbar.insert(button_save, 1)
button_saveAS = Gtk.ToolButton.new_from_stock(Gtk.STOCK_SAVE_AS)
button_saveAS.set_is_important(True)
button_saveAS.connect("clicked", self.on_saveAS_clicked)
toolbar.insert(button_saveAS, 2)
button_open = Gtk.ToolButton.new_from_stock(Gtk.STOCK_OPEN)
button_open.set_is_important(True)
button_open.connect("clicked", self.on_open_clicked)
toolbar.insert(button_open, 3)
toolbar.insert(Gtk.SeparatorToolItem(), 4)
button_sign = Gtk.ToolButton.new_from_stock(Gtk.STOCK_EDIT)
button_sign.set_is_important(True)
button_sign.set_label("Sign")
button_sign.connect("clicked", self.on_sign_clicked)
toolbar.insert(button_sign, 5)
toolbar.insert(Gtk.SeparatorToolItem(), 6)
button_cert = Gtk.ToolButton.new_from_stock(Gtk.STOCK_DND)
button_cert.set_is_important(True)
button_cert.set_label("New Certificate")
button_cert.connect("clicked", self.on_cert_clicked)
toolbar.insert(button_cert, 7)
toolbar.insert(Gtk.SeparatorToolItem(), 8)
button_certificate = Gtk.ToolButton.new_from_stock(Gtk.STOCK_DND_MULTIPLE)
button_certificate.set_is_important(True)
button_certificate.set_label("Certificate List")
button_certificate.connect("clicked", self.on_certificate_clicked)
toolbar.insert(button_certificate, 9)
toolbar.insert(Gtk.SeparatorToolItem(), 10)
button_help = Gtk.ToolButton.new_from_stock(Gtk.STOCK_HELP)
button_help.set_is_important(True)
button_help.connect("clicked", self.on_help_clicked)
toolbar.insert(button_help, 11)
toolbar.insert(Gtk.SeparatorToolItem(), 12)
button_info = Gtk.ToolButton.new_from_stock(Gtk.STOCK_INFO)
button_info.set_is_important(True)
button_info.set_label("Info")
button_info.connect("clicked", self.on_info_clicked)
toolbar.insert(button_info, 13)
def create_textview(self):
scrolledwindow = Gtk.ScrolledWindow()
scrolledwindow.set_hexpand(True)
scrolledwindow.set_vexpand(True)
self.grid.attach(scrolledwindow, 0, 1, 3, 1)
self.textview = Gtk.TextView()
self.textbuffer = self.textview.get_buffer()
self.textbuffer.set_text("Welcome to SecuriText, the most resilient text editor in Covilha!")
self.textview.set_editable(False)
scrolledwindow.add(self.textview)
self.tag_found = self.textbuffer.create_tag("found",background="yellow")
def create_status(self):
self.grid.attach(labelText, 1, 2, 1, 5)
self.override_background_color(Gtk.StateType.NORMAL, Gdk.RGBA(0.80,0.80,0.80,1.0))
#new save open
def on_new_clicked(self, widget):
global isNew
global isSigned
self.textbuffer.set_text("")
self.textview.set_editable(True)
isNew = 1
isSigned = False
docVar = "Untitled"
labelText.set_label("Working in Document: " + docVar)
def on_save_clicked(self, widget):
global isNew
global docVar
global encWith
global fName
if isNew == 1:
try:
dialog = SaveDialog(self)
except TypeError:
return
response = dialog.run()
if response == Gtk.ResponseType.OK:
path = dialog.path
fname = dialog.name
docVar = path
fName = docVar + fname
labelText.set_label("Working in Document :" + fname)
isNew = 0
dialog.destroy()
if response == Gtk.ResponseType.CANCEL:
dialog.destroy()
return
if not os.path.exists(docVar):
os.makedirs(docVar)
else:
path = docVar
fname = labelText.get_text().split(":")[1]
if encWith == 1:
#Save encripted text aes-256
texto = self.textbuffer.get_text(self.textbuffer.get_start_iter(),self.textbuffer.get_end_iter(),True)
key = Generate_Key(32) #32 byte key
f = open(path+fname, "w")
encrypted_message = encrypt(key,texto,1)
ct = "A"
f.write(encrypted_message)
f.close()
if encWith == 2:
#Save encripted text 3DES
texto = self.textbuffer.get_text(self.textbuffer.get_start_iter(),self.textbuffer.get_end_iter(),True)
key = Generate_Key(16) #16 byte key
f = open(path+fname, "w")
encrypted_message = encrypt(key,texto,2)
ct = "D"
f.write(encrypted_message)
f.close()
if encWith == 3:
#Save encripted text RC4
texto = self.textbuffer.get_text(self.textbuffer.get_start_iter(),self.textbuffer.get_end_iter(),True)
key = Generate_Key(256) #256 byte key
f = open(path+fname, "w")
encrypted_message = encrypt(key,texto,3)
ct = "R"
f.write(encrypted_message)
f.close()
#Save keys
mac = make_digest(key, encrypted_message)
Save_keys(key, mac, ct, path)
info_dialog = InfoDialog(self, True)
i_response = info_dialog.run()
if i_response == Gtk.ResponseType.OK:
info_dialog.destroy()
#print "Alert! Key file has been generated!"
def on_saveAS_clicked(self, widget):
global isNew
global docVar
global encWith
global fName
try:
dialog = SaveDialog(self)
except TypeError:
return
response = dialog.run()
#caso seja para gravar
if response == Gtk.ResponseType.OK:
path = dialog.path
fname = dialog.name
docVar = path
fName = docVar + fname
labelText.set_label("Working in Document :" + fname)
isNew = 0
dialog.destroy()
if not os.path.exists(docVar):
os.makedirs(docVar)
if encWith == 1:
#Save encripted text aes-256
texto = self.textbuffer.get_text(self.textbuffer.get_start_iter(),self.textbuffer.get_end_iter(),True)
key = Generate_Key(32) #32 byte key
f = open(path+fname, "w")
encrypted_message = encrypt(key,texto,1)
ct = "A"
f.write(encrypted_message)
f.close()
if encWith == 2:
#Save encripted text 3DES
texto = self.textbuffer.get_text(self.textbuffer.get_start_iter(),self.textbuffer.get_end_iter(),True)
key = Generate_Key(16) #16 byte key
f = open(path+fname, "w")
encrypted_message = encrypt(key,texto,2)
ct = "D"
f.write(encrypted_message)
f.close()
if encWith == 3:
#Save encripted text RC4
texto = self.textbuffer.get_text(self.textbuffer.get_start_iter(),self.textbuffer.get_end_iter(),True)
key = Generate_Key(256) #256 byte key
f = open(path+fname, "w")
encrypted_message = encrypt(key,texto,3)
ct = "R"
f.write(encrypted_message)
f.close()
#Save keys
mac = make_digest(key, encrypted_message)
Save_keys(key, mac, ct, path)
info_dialog = InfoDialog(self, True)
i_response = info_dialog.run()
if i_response == Gtk.ResponseType.OK:
info_dialog.destroy()
#print "Alert! Key file has been generated!"
if response == Gtk.ResponseType.CANCEL:
dialog.destroy()
def on_open_clicked(self, widget):
global isNew
global decWith
global fName
global docVar
global labelFileName
self.textview.set_editable(True)
dialog = OpenDialog(self)
response = dialog.run()
if response == Gtk.ResponseType.OK:
sp, sf = dialog.spin1.get_value(), dialog.spin2.get_value()
docVar = os.path.dirname(fName) + "/"
read_key, read_hmac , et = Read_keys(docVar)
if read_key == False:
signed = Signature_Check(docVar)
if signed:
data = open(fName, 'r').read()
self.textbuffer.set_text(data)
dialog.destroy()
verified = Signature_Verify(docVar,fName)
sdialog = SignatureDialog(self,verified)
response = sdialog.run()
if response == Gtk.ResponseType.OK:
sdialog.destroy()
return
else:
info_dialog = InfoDialog(self, False)
i_response = info_dialog.run()
if i_response == Gtk.ResponseType.OK:
info_dialog.destroy()
dialog.destroy()
return
self.textbuffer.set_text("")
isNew = 0
f = open(fName, 'r')
encrypted_message = f.read()
try:
decrited = decrypt(read_key, binascii.a2b_base64(encrypted_message), et, sp, sf)
except binascii.Error:
dialog.destroy()
info_dialog = WarningDialog(self,False)
i_response = info_dialog.run()
if i_response == Gtk.ResponseType.OK:
info_dialog.destroy()
return
self.textbuffer.set_text(decrited.decode('utf-8', 'ignore'))
f.close()
labelText.set_label("Working in Document :" + fName.split("/")[-1])
signed = Signature_Check(docVar)
if not signed:
actual_mac = make_digest(read_key,encrypted_message)
if read_hmac != actual_mac:
info_dialog = WarningDialog(self,False)
i_response = info_dialog.run()
if i_response == Gtk.ResponseType.OK:
info_dialog.destroy()
else:
info_dialog = WarningDialog(self,True)
i_response = info_dialog.run()
if i_response == Gtk.ResponseType.OK:
info_dialog.destroy()
else:
verified = Signature_Verify(docVar,fName)
sdialog = SignatureDialog(self,verified)
response = sdialog.run()
if response == Gtk.ResponseType.OK:
sdialog.destroy()
if response == Gtk.ResponseType.CANCEL:
dialog.destroy()
dialog.destroy()
labelFileName.set_label("")
def on_sign_clicked(self, widget):
global fName
global docVar
global isNew
global isSigned
gpg = gnupg.GPG(gnupghome="keys/.gnupg")
if isSigned:
dialog2 = ErrorDialog(self, "File is already signed!")
response = dialog2.run()
dialog2.destroy()
return
if isNew is 1:
#Se Novo Documento e e pedido para assinar guarda-mos o novo documento apenas assinado
texto = self.textbuffer.get_text(self.textbuffer.get_start_iter(),self.textbuffer.get_end_iter(),True)
dialog = Gtk.FileChooserDialog("Save File:", None,
Gtk.FileChooserAction.SAVE,
(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
Gtk.STOCK_SAVE, Gtk.ResponseType.OK))
response = dialog.run()
if response == Gtk.ResponseType.OK:
fullpath = dialog.get_filename()
dialog.destroy()
fname = os.path.basename(fullpath)
dirname = fname.split(".")[0]
path = os.path.dirname(fullpath)
path = path+"/"+dirname+"/"
dialog = InputDialog(self)
response = dialog.run()
if response == Gtk.ResponseType.OK:
docVar = path
fName = docVar + fname
labelText.set_label("Working in Document :" + fname)
isNew = 0
if not os.path.exists(docVar):
os.makedirs(docVar)
f = open(path+fname, "w")
f.write(texto)
f.close()
password = dialog.password.get_text()
key = dialog.keyid
if key == "":
dialog.destroy()
elif password == "":
dialog2 = ErrorDialog(self, "Password Field is obrigatory!")
response = dialog2.run()
dialog2.destroy()
else: