| 1 | #!/usr/bin/env python3 |
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| 2 | ### |
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| 3 | #This class returns a login_grid whith a standarized login form |
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| 4 | ### |
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| 5 | import os,sys,socket |
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| 6 | import threading |
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| 7 | import gi |
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| 8 | gi.require_version('Gtk', '3.0') |
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| 9 | gi.require_version('PangoCairo', '1.0') |
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| 10 | import json |
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| 11 | import cairo |
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| 12 | #import commands |
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| 13 | from gi.repository import Gtk, Gdk, GdkPixbuf, GObject, GLib, PangoCairo, Pango |
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| 14 | try: |
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| 15 | import xmlrpc.client as n4d |
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| 16 | except ImportError: |
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| 17 | raise ImportError("xmlrpc not available. Disabling server queries") |
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| 18 | import ssl |
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| 19 | import time |
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| 20 | import gettext |
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| 21 | |
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| 22 | gettext.textdomain('edupals.ui.common') |
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| 23 | _ = gettext.gettext |
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| 24 | GObject.threads_init() |
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| 25 | |
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| 26 | class N4dGtkLogin(Gtk.Box): |
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| 27 | __gtype_name__='n4dgtklogin' |
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| 28 | |
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| 29 | def __init__(self,*args,**kwds): |
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| 30 | super().__init__(*args,**kwds) |
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| 31 | self.sw_n4d=True |
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| 32 | if hasattr(sys,'last_value'): |
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| 33 | #If there's any error at this point it only could be an ImportError caused by xmlrpc |
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| 34 | self.sw_n4d=False |
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| 35 | self.css_classes={} |
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| 36 | self.style_provider=Gtk.CssProvider() |
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| 37 | Gtk.StyleContext.add_provider_for_screen(Gdk.Screen.get_default(),self.style_provider,Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION) |
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| 38 | self.default_spacing=12 |
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| 39 | self.username_placeholder=_("Username") |
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| 40 | self.server_placeholder=_("Server IP (Default value : server)") |
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| 41 | self.login_banner_default="llx-avatar" |
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| 42 | self.info_banner=None |
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| 43 | self.allowed_groups=[] |
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| 44 | #internal boxes |
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| 45 | self.form_box=Gtk.Box(spacing=0,orientation=Gtk.Orientation.VERTICAL) |
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| 46 | self.info_box=Gtk.Box(spacing=self.default_spacing,orientation=Gtk.Orientation.VERTICAL) |
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| 47 | self.main_grid=Gtk.Grid() |
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| 48 | self.render_form() |
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| 49 | #def __init__ |
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| 50 | |
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| 51 | def set_allowed_groups(self,groups): |
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| 52 | self.allowed_groups=groups |
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| 53 | #def set_allowed_groups |
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| 54 | |
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| 55 | def set_mw_proportion_ratio(self,left_panel,right_panel): |
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| 56 | for child in self.main_grid.get_children(): |
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| 57 | self.main_grid.remove(child) |
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| 58 | self.main_grid.attach(self.info_box,0,0,left_panel,1) |
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| 59 | self.main_grid.attach(self.form_box,0+left_panel,0,right_panel,1) |
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| 60 | #def set_mw_proportion_ratio |
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| 61 | |
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| 62 | def set_mw_background(self,image=None,cover=False,from_color='#ffffff',to_color='silver',gradient='linear'): |
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| 63 | mw_background=self._set_background(image,cover,from_color,to_color,gradient) |
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| 64 | self.css_classes['#mw']='{'+mw_background+';;}' |
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| 65 | self._set_css() |
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| 66 | #def set_mw_background |
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| 67 | |
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| 68 | def set_login_background(self,image=None,cover=False,from_color='#ffffff',to_color='@silver',gradient='linear'): |
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| 69 | form_background=self._set_background(image,cover,from_color,to_color,gradient) |
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| 70 | self.css_classes['#main']='{'+form_background+';;}' |
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| 71 | self._set_css() |
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| 72 | #def set_login_background |
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| 73 | |
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| 74 | def set_info_background(self,image=None,cover=False,from_color='#ffffff',to_color='@silver',gradient='linear'): |
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| 75 | info_background=self._set_background(image,cover,from_color,to_color,gradient) |
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| 76 | self.css_classes['#info']='{'+info_background+';;}' |
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| 77 | self._set_css() |
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| 78 | #def set_info_background |
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| 79 | |
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| 80 | def _set_css(self): |
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| 81 | css='' |
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| 82 | for css_class,style in self.css_classes.items(): |
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| 83 | css=css+css_class+' '+style |
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| 84 | css_style=eval('b"""'+css+'"""') |
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| 85 | self.style_provider.load_from_data(css_style) |
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| 86 | #def _set_css |
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| 87 | |
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| 88 | def _set_background(self,image=None,cover=False,from_color='#ffffff',to_color='silver',gradient='linear'): |
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| 89 | bg='' |
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| 90 | if image and os.path.isfile(image): |
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| 91 | if cover: |
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| 92 | bg='background-image:url("'+image+'"); background-repeat:no-repeat; background-size:100% 100%' |
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| 93 | else: |
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| 94 | bg='background-image:url("'+image+'"); background-repeat:no-repeat;' |
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| 95 | elif image: |
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| 96 | #try to locate the image in the default theme |
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| 97 | icon_theme=Gtk.IconTheme.get_default() |
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| 98 | icon_sizes=icon_theme.get_icon_sizes(image) |
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| 99 | if icon_sizes: |
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| 100 | max_size=max(icon_sizes) |
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| 101 | icon=icon_theme.lookup_icon(image,max_size,0) |
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| 102 | icon_path=icon.get_filename() |
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| 103 | bg='background-image:url("'+icon_path+'"); background-repeat:no-repeat; background-size:100% 100%' |
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| 104 | |
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| 105 | else: |
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| 106 | if gradient=='linear': |
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| 107 | bg='background-image:-gtk-gradient (linear, left top, left bottom, from ('+from_color+'), to ('+to_color+'))' |
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| 108 | elif gradient=='radial': |
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| 109 | bg='background-image:-gtk-gradient (radial, center center,0,center center,1, from ('+from_color+'), to ('+to_color+'))' |
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| 110 | return bg |
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| 111 | #def _set_background |
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| 112 | |
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| 113 | def set_default_username(self,username): |
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| 114 | self.username_placeholder=username |
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| 115 | self._set_text_for_entry(self.txt_username,username) |
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| 116 | #def set_default_username |
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| 117 | |
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| 118 | def set_default_server(self,server): |
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| 119 | self.server_placeholder=server |
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| 120 | if self.txt_server: |
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| 121 | self._set_text_for_entry(self.txt_server,server) |
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| 122 | #def set_default_server |
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| 123 | |
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| 124 | def _set_text_for_entry(self,widget,text): |
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| 125 | widget.set_placeholder_text(text) |
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| 126 | #def _set_text_for_entry |
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| 127 | |
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| 128 | def _lookup_user_face(self): |
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| 129 | sw_ok=False |
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| 130 | if os.path.isfile(os.path.expanduser('~/.face')): |
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| 131 | sw_ok=True |
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| 132 | self.set_login_banner(os.path.expanduser('~/.face')) |
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| 133 | return sw_ok |
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| 134 | #def _lookup_user_face |
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| 135 | |
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| 136 | def set_login_banner(self,banner): |
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| 137 | self.login_banner.set_from_pixbuf(self._get_image(banner)) |
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| 138 | #def set_banner |
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| 139 | |
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| 140 | def set_info_banner(self,banner,x=72,y=72): |
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| 141 | self.info_banner.set_from_pixbuf(self._get_image(banner)) |
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| 142 | #def set_info_banner |
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| 143 | |
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| 144 | def _get_image(self,image,x=72,y=72): |
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| 145 | icon_theme=Gtk.IconTheme.get_default() |
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| 146 | if icon_theme.has_icon(image): |
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| 147 | pixbuf=icon_theme.load_icon(image,x,0) |
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| 148 | else: |
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| 149 | if os.path.isfile(image): |
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| 150 | pixbuf=GdkPixbuf.Pixbuf.new_from_file_at_scale(image,x,y,True) |
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| 151 | return pixbuf |
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| 152 | #def _get_image |
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| 153 | |
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| 154 | def set_info_text(self,title,subtitle,text): |
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| 155 | sw_ok=True |
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| 156 | info_msg='' |
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| 157 | self.lbl_info_msg.set_width_chars(25) |
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| 158 | self.lbl_info_msg.set_max_width_chars(25) |
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| 159 | try: |
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| 160 | msg="<b><big>"+title+"</big></b>" |
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| 161 | info_msg=msg+'\n'+subtitle+'\n\n'+text |
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| 162 | except Exception as e: |
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| 163 | sw_ok=False |
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| 164 | print(e) |
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| 165 | self.lbl_info_msg.set_markup(info_msg) |
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| 166 | self.lbl_info_msg.show() |
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| 167 | return sw_ok |
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| 168 | #def set_info_text |
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| 169 | |
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| 170 | def hide_server_entry(self): |
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| 171 | self.txt_server.props.no_show_all=True |
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| 172 | self.txt_server.hide() |
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| 173 | #def hide_server_entry |
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| 174 | |
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| 175 | def hide_info_box(self): |
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| 176 | self.info_box.props.no_show_all=True |
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| 177 | self.info_box.hide() |
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| 178 | #def hide_info_box |
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| 179 | |
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| 180 | def get_action_area(self): |
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| 181 | return self.info_box |
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| 182 | #def get_action_area |
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| 183 | |
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| 184 | def render_form(self): |
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| 185 | self.main_grid.set_hexpand(True) |
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| 186 | self.main_grid.set_vexpand(True) |
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| 187 | self.main_grid.set_column_homogeneous(True) |
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| 188 | self.main_grid.set_row_homogeneous(True) |
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| 189 | self._render_login_form() |
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| 190 | self._render_info_form() |
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| 191 | self.main_grid.attach(self.info_box,1,1,2,1) |
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| 192 | self.main_grid.attach(self.form_box,3,1,1,1) |
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| 193 | self.pack_start(self.main_grid,True,True,0) |
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| 194 | self.set_name("mw") |
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| 195 | self.form_box.set_name("main") |
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| 196 | #def render_form |
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| 197 | |
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| 198 | def _render_login_form(self): |
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| 199 | self.txt_username=Gtk.Entry() |
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| 200 | self.login_banner=Gtk.Image() |
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| 201 | if not self._lookup_user_face(): |
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| 202 | self.set_login_banner(self.login_banner_default) |
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| 203 | self.login_banner.set_margin_bottom(self.default_spacing) |
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| 204 | self.set_default_username(self.username_placeholder) |
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| 205 | self.txt_username.set_icon_from_icon_name(Gtk.EntryIconPosition.PRIMARY,"emblem-personal") |
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| 206 | self.txt_password=Gtk.Entry() |
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| 207 | self.txt_password.set_icon_from_icon_name(Gtk.EntryIconPosition.PRIMARY,"badge-small") |
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| 208 | self._set_text_for_entry(self.txt_password,_("Password")) |
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| 209 | self.txt_server=Gtk.Entry() |
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| 210 | self.set_default_server(self.server_placeholder) |
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| 211 | self.txt_server.set_icon_from_icon_name(Gtk.EntryIconPosition.PRIMARY,"server") |
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| 212 | self.btn_sign=Gtk.Button(stock=Gtk.STOCK_OK) |
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| 213 | self.btn_sign.connect('clicked',self._validate) |
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| 214 | self.frame=Gtk.Frame() |
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| 215 | |
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| 216 | self.frame.set_shadow_type(Gtk.ShadowType.OUT) |
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| 217 | login_grid=Gtk.Grid() |
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| 218 | login_grid.set_margin_left(self.default_spacing) |
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| 219 | login_grid.set_margin_right(self.default_spacing) |
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| 220 | login_grid.set_margin_top(self.default_spacing) |
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| 221 | login_grid.set_margin_bottom(self.default_spacing) |
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| 222 | self.spinner=Gtk.Spinner() |
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| 223 | color=Gdk.Color(0,0,1) |
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| 224 | self.spinner.modify_bg(Gtk.StateType.NORMAL,color) |
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| 225 | login_grid.attach(self.spinner,0,1,1,5) |
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| 226 | login_grid.attach(self.login_banner,0,0,1,1) |
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| 227 | login_grid.attach(self.txt_username,0,1,1,1) |
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| 228 | self._set_widget_default_props(self.txt_username,_("Username")) |
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| 229 | self.txt_username.connect('activate',self._validate) |
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| 230 | login_grid.attach(self.txt_password,0,2,1,1) |
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| 231 | self._set_widget_default_props(self.txt_password,_("Password")) |
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| 232 | self.txt_password.set_visibility(False) |
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| 233 | self.txt_password.props.caps_lock_warning=True |
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| 234 | self.txt_password.connect('activate',self._validate) |
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| 235 | login_grid.attach(self.txt_server,0,3,1,1) |
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| 236 | self._set_widget_default_props(self.txt_server,_("Master Server IP")) |
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| 237 | self.txt_server.connect('activate',self._validate) |
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| 238 | self.btn_sign.set_margin_top(self.default_spacing) |
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| 239 | login_grid.attach(self.btn_sign,0,4,1,1) |
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| 240 | self.sta_info=Gtk.InfoBar() |
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| 241 | self.sta_info.set_show_close_button(True) |
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| 242 | self.sta_info.set_message_type(Gtk.MessageType.ERROR) |
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| 243 | self.lbl_error=Gtk.Label(_("Login failed")) |
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| 244 | self.sta_info.get_action_area().add(self.lbl_error) |
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| 245 | self.sta_info.set_visible(False) |
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| 246 | self.sta_info.set_no_show_all(True) |
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| 247 | self.sta_info.connect('response',self._status_info_hide) |
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| 248 | self.sta_info.set_valign(True) |
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| 249 | login_grid.props.valign=Gtk.Align.CENTER |
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| 250 | login_grid.props.halign=Gtk.Align.CENTER |
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| 251 | self.form_box.pack_start(self.sta_info,False,True,0) |
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| 252 | self.form_box.pack_start(login_grid,True,True,0) |
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| 253 | #def _render_login_form |
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| 254 | |
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| 255 | def _render_info_form(self): |
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| 256 | self.info_box.set_homogeneous(False) |
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| 257 | self.info_banner=Gtk.Image() |
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| 258 | info_detail_box=Gtk.Box(spacing=self.default_spacing,orientation=Gtk.Orientation.VERTICAL) |
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| 259 | info_detail_box.pack_start(self.info_banner,False,False,0) |
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| 260 | self.lbl_info_msg=Gtk.Label() |
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| 261 | self.lbl_info_msg.set_use_markup(True) |
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| 262 | self.lbl_info_msg.set_line_wrap(True) |
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| 263 | info_detail_box.pack_start(self.lbl_info_msg,True,True,0) |
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| 264 | self.css_classes['#label']='{background-color:rgba(200,200,200,0.8);;}' |
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| 265 | self.lbl_info_msg.set_name("label") |
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| 266 | self.lbl_info_msg.set_no_show_all(True) |
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| 267 | self.lbl_info_msg.hide() |
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| 268 | self.info_box.set_name("info") |
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| 269 | info_detail_box.props.valign=Gtk.Align.CENTER |
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| 270 | info_detail_box.props.halign=Gtk.Align.CENTER |
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| 271 | self.info_box.pack_start(info_detail_box,True,True,0) |
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| 272 | self._set_css() |
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| 273 | #def _render_info_form |
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| 274 | |
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| 275 | def _set_widget_default_props(self,widget,tooltip=None): |
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| 276 | widget.set_valign(True) |
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| 277 | widget.set_halign(True) |
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| 278 | widget.set_tooltip_text(tooltip) |
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| 279 | #def _set_widget_default_props |
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| 280 | |
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| 281 | def _status_info_hide(self,widget,data): |
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| 282 | self.sta_info.hide() |
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| 283 | self.frame.set_sensitive(True) |
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| 284 | #def _info_hide |
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| 285 | |
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| 286 | def _validate(self,widget=None): |
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| 287 | user=self.txt_username.get_text() |
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| 288 | pwd=self.txt_password.get_text() |
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| 289 | server=self.txt_server.get_text() |
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| 290 | if not server: |
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| 291 | server='server' |
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| 292 | try: |
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| 293 | socket.gethostbyname(server) |
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| 294 | except: |
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| 295 | server='localhost' |
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| 296 | self.spinner.start() |
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| 297 | self.frame.set_sensitive(False) |
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| 298 | th=threading.Thread(target=self._t_validate,args=[user,pwd,server]) |
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| 299 | th.start() |
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| 300 | #def _validate |
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| 301 | |
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| 302 | def _t_validate(self,user,pwd,server): |
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| 303 | ret=[False] |
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| 304 | self.lbl_error.set_text(_("Login failed")) |
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| 305 | if self.sw_n4d: |
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| 306 | try: |
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| 307 | self.n4dclient=self._n4d_connect(server) |
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| 308 | ret=self.n4dclient.validate_user(user,pwd) |
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| 309 | except socket.error as e: |
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| 310 | self.lbl_error.set_text(_("Unknown host")+' '+str(server)) |
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| 311 | ret=[False,str(e)] |
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| 312 | |
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| 313 | self.spinner.stop() |
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| 314 | if not ret[0]: |
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| 315 | self.sta_info.show() |
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| 316 | self.lbl_error.show() |
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| 317 | #show server entry if we can't connect to n4d in "server" |
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| 318 | self.txt_server.props.no_show_all=False |
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| 319 | self.txt_server.show() |
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| 320 | elif self.allowed_groups and not set(self.allowed_groups).intersection(ret[1]): |
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| 321 | #Check user groups |
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| 322 | self.lbl_error.set_text(_("User not allowed")) |
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| 323 | self.sta_info.show() |
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| 324 | self.lbl_error.show() |
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| 325 | else: |
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| 326 | GLib.idle_add(self.after_validate,user,pwd,server) |
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| 327 | #local validation |
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| 328 | #def _t_validate |
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| 329 | |
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| 330 | def after_validation_goto(self,func,data=None): |
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| 331 | self.after_validate=func |
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| 332 | #def after_validation_func |
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| 333 | |
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| 334 | def _n4d_connect(self,server): |
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| 335 | context=ssl._create_unverified_context() |
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| 336 | try: |
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| 337 | socket.gethostbyname(server) |
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| 338 | except: |
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| 339 | #It could be an ip |
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| 340 | try: |
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| 341 | socket.inet_aton(server) |
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| 342 | except Exception as e: |
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| 343 | print(e) |
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| 344 | raise |
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| 345 | c = n4d.ServerProxy("https://"+server+":9779",context=context,allow_none=True) |
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| 346 | return c |
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| 347 | #def _n4d_connect |
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