200 lines
9.1 KiB
Python
200 lines
9.1 KiB
Python
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# -*-coding:utf-8 -*
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import tkinter as tk
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from tkinter import filedialog
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from tkinter import messagebox
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from tkinter import simpledialog
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from tkinter import ttk
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from pdfembannersrc import subwindows
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import logging
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import PyPDF2
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logger = logging.getLogger()
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class Interface(tk.Toplevel):
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"""
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Main encryption window
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Allows to :
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* Encrypt a pdf
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* Decrypt a pdf
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"""
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def __init__(self, parent, **kwargs):
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tk.Toplevel.__init__(self, parent)
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self.transient(parent)
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self.grab_set()
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self.title("PDF Embanner : encryption")
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self.geometry("800x300")
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self.protocol("WM_DELETE_WINDOW", self.close)
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self.bind("<Escape>", self.close)
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self.enc_file = None
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self.dec_file = None
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self.enc_saveas = None
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self.dec_saveas = None
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self.f = tk.Frame(self, width=768, height=576, **kwargs)
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self.f.pack(fill=tk.BOTH)
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# Création de nos widgets
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self.f.columnconfigure(1, weight=1)
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self.f.rowconfigure(12, weight=1)
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tk.Label(self.f, text="Encryption...", bg="blue", fg="white", padx=20).grid(row=0, column=0, columnspan=3, sticky=tk.W)
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tk.Button(self.f, text="Open", command=self.enc_open).grid(row=1, column=0)
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self.enc_open_label = tk.Label(self.f, text="-" if self.enc_file is None else self.enc_file)
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self.enc_open_label.grid(row=1, column=1, columnspan=3, sticky=tk.W)
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tk.Button(self.f, text="Save as", command=self.set_enc_saveas).grid(row=2, column=0)
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self.enc_save_label = tk.Label(self.f, text="-" if self.enc_saveas is None else self.enc_saveas)
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self.enc_save_label.grid(row=2, column=1, columnspan=3, sticky=tk.W)
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tk.Button(self.f, text="Encrypt", command=self.enc_do, fg="blue").grid(row=4, column=3)
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ttk.Separator(self.f, orient="horizontal").grid(row=5, column=0, columnspan=4, sticky=tk.W+tk.E, padx=5, pady=10)
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tk.Label(self.f, text="Decrypt...", bg="blue", fg="white", padx=20).grid(row=6, column=0, columnspan=3, sticky=tk.W)
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tk.Button(self.f, text="Open", command=self.dec_open).grid(row=7, column=0)
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self.dec_open_label = tk.Label(self.f, text="-" if self.dec_file is None else self.dec_file)
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self.dec_open_label.grid(row=7, column=1, columnspan=3, sticky=tk.W)
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tk.Button(self.f, text="Save as", command=self.set_dec_saveas).grid(row=8, column=0)
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self.dec_save_label = tk.Label(self.f, text="-" if self.dec_saveas is None else self.dec_saveas)
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self.dec_save_label.grid(row=8, column=1, columnspan=3, sticky=tk.W)
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tk.Button(self.f, text="Decrypt", command=self.dec_do, fg="blue").grid(row=9, column=3)
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ttk.Separator(self.f, orient="horizontal").grid(row=10, column=0, columnspan=4, sticky=tk.W+tk.E, padx=5, pady=10)
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tk.Button(self.f, text="Close", command=self.close).grid(row=11, column=3)
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self.message = tk.Label(self.f, text="Welcome!")
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self.message.grid(row=13, column=0, columnspan=4, sticky=tk.W)
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def enc_open(self, *args):
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ftypes = [('PDF files (Portable Document Format)', '*.pdf'), ('All files', '*')]
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fl = filedialog.askopenfilename(filetypes = ftypes)
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if fl!='':
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self.enc_file = fl
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self.enc_open_label["text"] = fl
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def dec_open(self, *args):
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ftypes = [('PDF files (Portable Document Format)', '*.pdf'), ('All files', '*')]
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fl = filedialog.askopenfilename(filetypes = ftypes)
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if fl!='':
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self.dec_file = fl
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self.dec_open_label["text"] = fl
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def enc_do(self, *args):
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if(self.enc_file is None):
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messagebox.showwarning(title="PDF Output", message="Please open the PDF to encrypt before !")
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elif(self.enc_saveas is None):
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messagebox.showwarning(title="PDF Output", message="Please define the 'Save As' path before !")
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else:
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pwd1 = simpledialog.askstring("Encryption", "Password:", show='*')
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if(pwd1 is not None):
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pwd2 = simpledialog.askstring("Encryption", "Re-type password:", show='*')
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if(pwd2 is None):
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return
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elif(pwd1==pwd2):
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pwd=pwd1
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else:
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messagebox.showwarning(title="Encryption", message="Passwords do not match!")
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return
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else:
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return
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currentf = self.enc_file
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progress = subwindows.Progress(self, 4, "Producing PDF...")
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progress.message["text"] = 'Reading files'
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self.message["text"] = "Encrypting"
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try:
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with open(self.enc_file, 'rb') as in_f:
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inpdf = PyPDF2.PdfFileReader(in_f)
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progress.next()
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output = PyPDF2.PdfFileWriter()
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output.addMetadata(inpdf.getDocumentInfo())
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output.appendPagesFromReader(inpdf)
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progress.next()
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output.encrypt(pwd)
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progress.next()
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currentf = self.enc_saveas
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with open(self.enc_saveas, 'wb') as out_f:
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logger.debug("Encrypt : Writing into file : start")
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progress.message["text"] = 'Encryption and writing file'
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output.write(out_f)
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logger.debug("Encrypt : Writing into file : done")
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self.message["text"] = "Done"
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progress.next()
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except IOError:
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logger.warn("Encrypt : Could not open one of the files :: {} {} {}".format(currentf, e.errno, e.strerror))
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messagebox.showerror(title="Error",
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message="IO Error occured :\nImpossible to open one of the files ({})\nNo output produced!".format(currentf))
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except Exception as e:
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logger.warn("Encrypt : Unknown error occured during PDF production. {}".format(str(e)))
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messagebox.showerror(title="Error",
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message="An Error occured :\n{}\nNo output produced!".format(e))
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finally:
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progress.close()
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def dec_do(self, *args):
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if(self.dec_file is None):
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messagebox.showwarning(title="PDF Output", message="Please open the PDF to encrypt before !")
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elif(self.dec_saveas is None):
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messagebox.showwarning(title="PDF Output", message="Please define the 'Save As' path before !")
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else:
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pwd = simpledialog.askstring("Encrypted", "Password:", show='*')
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if(pwd is None):
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return
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currentf = self.dec_file
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progress = subwindows.Progress(self, 4, "Producing PDF...")
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progress.message["text"] = 'Reading file'
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self.message["text"] = "Decrypting"
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try:
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with open(self.dec_file, 'rb') as in_f:
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inpdf = PyPDF2.PdfFileReader(in_f)
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progress.next()
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okpwd = inpdf.decrypt(pwd)
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if(okpwd==0):
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messagebox.showwarning(title="Encrypted", message="Incorrect password!")
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return
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progress.next()
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output = PyPDF2.PdfFileWriter()
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output.addMetadata(inpdf.getDocumentInfo())
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output.appendPagesFromReader(inpdf)
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progress.next()
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currentf = self.dec_saveas
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with open(self.dec_saveas, 'wb') as out_f:
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logger.debug("Decrypt : Writing into file : start")
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output.write(out_f)
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logger.debug("Decrypt : Writing into file : done")
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self.message["text"] = "Done"
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progress.next()
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except IOError as e:
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logger.warn("Encrypt : Could not open one of the files :: {} {} {}".format(currentf, e.errno, e.strerror))
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messagebox.showerror(title="Error",
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message="IO Error occured :\nImpossible to open one of the files ({})\nNo output produced!".format(currentf))
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except NotImplementedError as e:
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logger.warn("Decrypt : Not supported encryption method :: {}".format(e))
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messagebox.showerror(title="Error",
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message="The encryption method is not supported! Sorry :(")
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except Exception as e:
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logger.warn("Encrypt : Unknown error occured during PDF production. {}".format(str(e)))
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messagebox.showerror(title="Error",
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message="An Error occured :\n{}\nNo output produced!".format(e))
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finally:
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progress.close()
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def set_enc_saveas(self, *args):
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fsas = filedialog.asksaveasfilename()
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if fsas != '':
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self.enc_saveas = fsas
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self.enc_save_label["text"] = fsas
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def set_dec_saveas(self, *args):
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fsas = filedialog.asksaveasfilename()
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if fsas != '':
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self.dec_saveas = fsas
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self.dec_save_label["text"] = fsas
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def close(self, *args):
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self.destroy()
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