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#!/usr/bin/python3 '''Command line Apport user interface.''' # Copyright (C) 2007 - 2009 Canonical Ltd. # Author: Michael Hofmann <[email protected]> # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 2 of the License, or (at your # option) any later version. See http://www.gnu.org/copyleft/gpl.html for # the full text of the license. # Web browser support: # w3m, lynx: do not work # elinks: works from __future__ import unicode_literals import os.path, os, sys, subprocess, re, errno import termios, tempfile from apport import unicode_gettext as _ import apport.ui class CLIDialog: '''Command line dialog wrapper.''' def __init__(self, heading, text): self.heading = '\n*** ' + heading + '\n' self.text = text self.keys = [] self.buttons = [] self.visible = False def raw_input_char(self, prompt, multi_char=False): '''raw_input, but read a single character unless multi_char is True. @param: prompt: the text presented to the user to solict a response. @param: multi_char: Boolean True if we need to read until <enter>. ''' sys.stdout.write(prompt) sys.stdout.write(' ') sys.stdout.flush() file = sys.stdin.fileno() saved_attributes = termios.tcgetattr(file) attributes = termios.tcgetattr(file) attributes[3] = attributes[3] & ~(termios.ICANON) attributes[6][termios.VMIN] = 1 attributes[6][termios.VTIME] = 0 termios.tcsetattr(file, termios.TCSANOW, attributes) try: if multi_char: response = str(sys.stdin.readline()).strip() else: response = str(sys.stdin.read(1)) finally: termios.tcsetattr(file, termios.TCSANOW, saved_attributes) sys.stdout.write('\n') return response def show(self): self.visible = True print(self.heading) if self.text: print(self.text) def run(self, prompt=None): if not self.visible: self.show() sys.stdout.write('\n') try: # Only one button if len(self.keys) <= 1: self.raw_input_char(_('Press any key to continue...')) return 0 # Multiple choices while True: if prompt is not None: print(prompt) else: print(_('What would you like to do? Your options are:')) for index, button in enumerate(self.buttons): print(' %s: %s' % (self.keys[index], button)) if len(self.keys) <= 10: # A 10 option prompt would can still be a single character # response because the 10 options listed will be 1-9 and C. # Therefore there are 10 unique responses which can be # given. multi_char = False else: multi_char = True response = self.raw_input_char( _('Please choose (%s):') % ('/'.join(self.keys)), multi_char) try: return self.keys.index(response.upper()) + 1 except ValueError: pass except KeyboardInterrupt: sys.stdout.write('\n') sys.exit(1) def addbutton(self, button, hotkey=None): if hotkey: self.keys.append(hotkey) self.buttons.append(button) else: self.keys.append(re.search('&(.)', button).group(1).upper()) self.buttons.append(re.sub('&', '', button)) return len(self.keys) class CLIProgressDialog(CLIDialog): '''Command line progress dialog wrapper.''' def __init__(self, heading, text): CLIDialog.__init__(self, heading, text) self.progresscount = 0 def set(self, progress=None): self.progresscount = (self.progresscount + 1) % 5 if self.progresscount: return if progress is not None: sys.stdout.write('\r%u%%' % (progress * 100)) else: sys.stdout.write('.') sys.stdout.flush() class CLIUserInterface(apport.ui.UserInterface): '''Command line Apport user interface''' def __init__(self): apport.ui.UserInterface.__init__(self) self.in_update_view = False def _get_details(self): '''Build report string for display.''' details = '' max_show = 1000000 for key in sorted(self.report): # ignore internal keys if key.startswith('_'): continue details += '== %s =================================\n' % key # string value keylen = len(self.report[key]) if not hasattr(self.report[key], 'gzipvalue') and \ hasattr(self.report[key], 'isspace') and \ not self.report._is_binary(self.report[key]) and \ keylen < max_show: s = self.report[key] elif keylen >= max_show: s = _('(%i bytes)') % keylen else: s = _('(binary data)') if isinstance(s, bytes): s = s.decode('UTF-8', errors='ignore') details += s details += '\n\n' return details def ui_update_view(self): self.in_update_view = True report = self._get_details() try: apport.ui.run_as_real_user( ["/usr/bin/sensible-pager"], input=report.encode("UTF-8") ) except IOError as e: # ignore broken pipe (premature quit) if e.errno == errno.EPIPE: pass else: raise self.in_update_view = False # # ui_* implementation of abstract UserInterface classes # def ui_present_report_details(self, allowed_to_report=True, modal_for=None): dialog = CLIDialog(_('Send problem report to the developers?'), _('After the problem report has been sent, please fill out the form in the\n' 'automatically opened web browser.')) complete = dialog.addbutton(_('&Send report (%s)') % self.format_filesize(self.get_complete_size())) if self.can_examine_locally(): examine = dialog.addbutton(_('&Examine locally')) else: examine = None view = dialog.addbutton(_('&View report')) save = dialog.addbutton(_('&Keep report file for sending later or copying to somewhere else')) ignore = dialog.addbutton(_('Cancel and &ignore future crashes of this program version')) dialog.addbutton(_('&Cancel')) while True: response = dialog.run() return_value = {'restart': False, 'blacklist': False, 'remember': False, 'report': False, 'examine': False} if response == examine: return_value['examine'] = True return return_value elif response == complete: return_value['report'] = True elif response == ignore: return_value['blacklist'] = True elif response == view: self.collect_info() self.ui_update_view() continue elif response == save: # we do not already have a report file if we report a bug if not self.report_file: prefix = 'apport.' if 'Package' in self.report: prefix += self.report['Package'].split()[0] + '.' (fd, self.report_file) = tempfile.mkstemp(prefix=prefix, suffix='.apport') with os.fdopen(fd, 'wb') as f: self.report.write(f) print(_('Problem report file:') + ' ' + self.report_file) return return_value def ui_info_message(self, title, text): dialog = CLIDialog(title, text) dialog.addbutton(_('&Confirm')) dialog.run() def ui_error_message(self, title, text): dialog = CLIDialog(_('Error: %s') % title, text) dialog.addbutton(_('&Confirm')) dialog.run() def ui_start_info_collection_progress(self): self.progress = CLIProgressDialog( _('Collecting problem information'), _('The collected information can be sent to the developers to improve the\n' 'application. This might take a few minutes.')) self.progress.show() def ui_pulse_info_collection_progress(self): self.progress.set() def ui_stop_info_collection_progress(self): sys.stdout.write('\n') def ui_start_upload_progress(self): self.progress = CLIProgressDialog( _('Uploading problem information'), _('The collected information is being sent to the bug tracking system.\n' 'This might take a few minutes.')) self.progress.show() def ui_set_upload_progress(self, progress): self.progress.set(progress) def ui_stop_upload_progress(self): sys.stdout.write('\n') def ui_question_yesno(self, text): '''Show a yes/no question. Return True if the user selected "Yes", False if selected "No" or "None" on cancel/dialog closing. ''' dialog = CLIDialog(text, None) r_yes = dialog.addbutton('&Yes') r_no = dialog.addbutton('&No') r_cancel = dialog.addbutton(_('&Cancel')) result = dialog.run() if result == r_yes: return True if result == r_no: return False assert result == r_cancel return None def ui_question_choice(self, text, options, multiple): '''Show an question with predefined choices. options is a list of strings to present. If multiple is True, they should be check boxes, if multiple is False they should be radio buttons. Return list of selected option indexes, or None if the user cancelled. If multiple == False, the list will always have one element. ''' result = [] dialog = CLIDialog(text, None) if multiple: while True: dialog = CLIDialog(text, None) index = 0 choice_index_map = {} for option in options: if index not in result: choice_index_map[dialog.addbutton(option, str(index + 1))] = index index += 1 done = dialog.addbutton(_('&Done')) cancel = dialog.addbutton(_('&Cancel')) if result: cur = ', '.join([str(r + 1) for r in result]) else: cur = _('none') response = dialog.run(_('Selected: %s. Multiple choices:') % cur) if response == cancel: return None if response == done: break result.append(choice_index_map[response]) else: # single choice (radio button) dialog = CLIDialog(text, None) index = 1 for option in options: dialog.addbutton(option, str(index)) index += 1 cancel = dialog.addbutton(_('&Cancel')) response = dialog.run(_('Choices:')) if response == cancel: return None result.append(response - 1) return result def ui_question_file(self, text): '''Show a file selector dialog. Return path if the user selected a file, or None if cancelled. ''' print('\n*** ' + text) while True: sys.stdout.write(_('Path to file (Enter to cancel):')) sys.stdout.write(' ') f = sys.stdin.readline().strip() if not f: return None if not os.path.exists(f): print(_('File does not exist.')) elif os.path.isdir(f): print(_('This is a directory.')) else: return f def open_url(self, url): text = '%s\n\n %s\n\n%s' % ( _('To continue, you must visit the following URL:'), url, _('You can launch a browser now, or copy this URL into a browser on another computer.')) answer = self.ui_question_choice(text, [_('Launch a browser now')], False) if answer == [0]: apport.ui.UserInterface.open_url(self, url) def ui_run_terminal(self, command): # we are already running in a terminal, so this works by definition if not command: return True subprocess.call(command, shell=True) if __name__ == '__main__': app = CLIUserInterface() if not app.run_argv(): print(_('No pending crash reports. Try --help for more information.'))