main.py

   1 from xml.dom import Node, minidom
   2
   3 import rox, os, pango, sys, textwrap, traceback, subprocess, time, urlparse
   4 from rox import g, tasks, loading
   5 import gtk.glade
   6
   7 import signing
   8 import archive
   9 from implementation import ImplementationProperties
  10 from requires import Requires
  11 from xmltools import *
  12
  13 from zeroinstall.zerostore import unpack, Stores
  14
  15 RESPONSE_SAVE = 0
  16 RESPONSE_SAVE_AND_TEST = 1
  17
  18 gladefile = os.path.join(rox.app_dir, '0publish-gui.glade')
  19
  20 # Zero Install implementation cache
  21 stores = Stores()
  22
  23 def available_in_path(prog):
  24         for d in os.environ['PATH'].split(':'):
  25                 path = os.path.join(d, prog)
  26                 if os.path.isfile(path):
  27                         return True
  28         return False
  29
  30 def choose_feed():
  31         tree = gtk.glade.XML(gladefile, 'no_file_specified')
  32         box = tree.get_widget('no_file_specified')
  33         tree.get_widget('new_button').grab_focus()
  34         resp = box.run()
  35         box.destroy()
  36         if resp == 0:
  37                 chooser = g.FileChooserDialog('Choose a location for the new feed',
  38                                               None, g.FILE_CHOOSER_ACTION_SAVE)
  39                 chooser.set_current_name('MyProg.xml')
  40                 chooser.add_button(g.STOCK_CANCEL, g.RESPONSE_CANCEL)
  41                 chooser.add_button(g.STOCK_NEW, g.RESPONSE_OK)
  42         elif resp == 1:
  43                 chooser = g.FileChooserDialog('Choose the feed to edit',
  44                                               None, g.FILE_CHOOSER_ACTION_OPEN)
  45                 chooser.add_button(g.STOCK_CANCEL, g.RESPONSE_CANCEL)
  46                 chooser.add_button(g.STOCK_OPEN, g.RESPONSE_OK)
  47         else:
  48                 sys.exit(1)
  49         chooser.set_default_response(g.RESPONSE_OK)
  50         if chooser.run() != g.RESPONSE_OK:
  51                 sys.exit(1)
  52         path = chooser.get_filename()
  53         chooser.destroy()
  54         return FeedEditor(path)
  55
  56 def combo_set_text(combo, text):
  57         if combo.get_active_text() or text:
  58                 model =  combo.get_model()
  59                 i = 0
  60                 for row in model:
  61                         if row[0] == text:
  62                                 combo.set_active(i)
  63                                 return
  64                         i += 1
  65                 combo.append_text(text)
  66                 combo.set_active(i)
  67         else:
  68                 return
  69
  70 emptyFeed = """<?xml version='1.0'?>
  71 <interface xmlns="%s">
  72   <name>Name</name>
  73 </interface>
  74 """ % (XMLNS_INTERFACE)
  75
  76 element_target = ('INTERNAL:FeedEditor/Element', gtk.TARGET_SAME_WIDGET, 0)
  77
  78 class FeedEditor(loading.XDSLoader):
  79         def __init__(self, pathname):
  80                 loading.XDSLoader.__init__(self, None)
  81
  82                 self.pathname = pathname
  83
  84                 self.wTree = gtk.glade.XML(gladefile, 'main')
  85                 self.window = self.wTree.get_widget('main')
  86                 self.window.connect('destroy', rox.toplevel_unref)
  87                 self.xds_proxy_for(self.window)
  88
  89                 help = gtk.glade.XML(gladefile, 'main_help')
  90                 help_box = help.get_widget('main_help')
  91                 help_box.set_default_size(g.gdk.screen_width() / 4,
  92                                       g.gdk.screen_height() / 4)
  93                 help_box.connect('delete-event', lambda box, ev: True)
  94                 help_box.connect('response', lambda box, resp: box.hide())
  95
  96                 def resp(box, resp):
  97                         if resp == g.RESPONSE_HELP:
  98                                 help_box.present()
  99                         elif resp == RESPONSE_SAVE_AND_TEST:
 100                                 self.save(self.test)
 101                         elif resp == RESPONSE_SAVE:
 102                                 self.save()
 103                         else:
 104                                 box.destroy()
 105                 self.window.connect('response', resp)
 106                 rox.toplevel_ref()
 107
 108                 key_menu = self.wTree.get_widget('feed_key')
 109                 key_model = g.ListStore(str, str)
 110                 key_menu.set_model(key_model)
 111                 cell = g.CellRendererText()
 112                 cell.set_property('ellipsize', pango.ELLIPSIZE_MIDDLE)
 113                 key_menu.pack_start(cell)
 114                 key_menu.add_attribute(cell, 'text', 1)
 115
 116                 self.update_key_model()
 117
 118                 self.impl_model = g.TreeStore(str, object)
 119                 impl_tree = self.wTree.get_widget('impl_tree')
 120                 impl_tree.set_model(self.impl_model)
 121                 text = g.CellRendererText()
 122                 column = g.TreeViewColumn('', text)
 123                 column.add_attribute(text, 'text', 0)
 124                 impl_tree.append_column(column)
 125
 126                 impl_tree.enable_model_drag_source(gtk.gdk.BUTTON1_MASK, [element_target], gtk.gdk.ACTION_MOVE)
 127                 impl_tree.enable_model_drag_dest([element_target], gtk.gdk.ACTION_MOVE)
 128
 129                 sel = impl_tree.get_selection()
 130                 sel.set_mode(g.SELECTION_BROWSE)
 131
 132                 if os.path.exists(self.pathname):
 133                         data, _, self.key = signing.check_signature(self.pathname)
 134                         self.doc = minidom.parseString(data)
 135                         self.update_fields()
 136
 137                         # Default to showing the versions tab
 138                         self.wTree.get_widget('notebook').next_page()
 139                 else:
 140                         self.doc = minidom.parseString(emptyFeed)
 141                         self.key = None
 142                         key_menu.set_active(0)
 143
 144                 root = self.impl_model.get_iter_root()
 145                 if root:
 146                         sel.select_iter(root)
 147
 148                 self.wTree.get_widget('generate_key').connect('clicked', lambda b: self.generate_key())
 149
 150                 self.wTree.get_widget('add_implementation').connect('clicked', lambda b: self.add_version())
 151                 self.wTree.get_widget('add_archive').connect('clicked', lambda b: self.add_archive())
 152                 self.wTree.get_widget('add_requires').connect('clicked', lambda b: self.add_requires())
 153                 self.wTree.get_widget('add_group').connect('clicked', lambda b: self.add_group())
 154                 self.wTree.get_widget('edit_properties').connect('clicked', lambda b: self.edit_properties())
 155                 self.wTree.get_widget('remove').connect('clicked', lambda b: self.remove_version())
 156                 impl_tree.connect('row-activated', lambda tv, path, col: self.edit_properties(path))
 157                 impl_tree.connect('drag-data-received', self.tree_drag_data_received)
 158
 159         def update_key_model(self):
 160                 key_menu = self.wTree.get_widget('feed_key')
 161                 key_model = key_menu.get_model()
 162                 keys = signing.get_secret_keys()
 163                 key_model.clear()
 164                 key_model.append((None, '(unsigned)'))
 165                 for k in keys:
 166                         key_model.append(k)
 167
 168         def generate_key(self):
 169                 for x in ['xterm', 'konsole']:
 170                         if available_in_path(x):
 171                                 child = subprocess.Popen([x, '-e', 'gpg', '--gen-key'], stderr = subprocess.PIPE)
 172                                 break
 173                 else:
 174                         child = subprocess.Popen(['gnome-terminal', '-e', 'gpg --gen-key'], stderr = subprocess.PIPE)
 175
 176                 def get_keygen_out():
 177                         errors = ''
 178                         while True:
 179                                 yield signing.InputBlocker(child.stderr)
 180                                 data = os.read(child.stderr.fileno(), 100)
 181                                 if not data:
 182                                         break
 183                                 errors += data
 184                         self.update_key_model()
 185                         if errors:
 186                                 rox.alert('Errors from terminal: %s' % errors)
 187
 188                 tasks.Task(get_keygen_out())
 189
 190         def tree_drag_data_received(self, treeview, context, x, y, selection, info, time):
 191                 if not selection: return
 192                 drop_info = treeview.get_dest_row_at_pos(x, y)
 193                 if drop_info:
 194                         model = treeview.get_model()
 195                         path, position = drop_info
 196
 197                         src = self.get_selected()
 198                         dest = model[path][1]
 199
 200                         def is_ancestor_or_self(a, b):
 201                                 while b:
 202                                         if b is a: return True
 203                                         b = b.parentNode
 204                                 return False
 205
 206                         if is_ancestor_or_self(src, dest):
 207                                 # Can't move an element into itself!
 208                                 return
 209
 210                         if position in (gtk.TREE_VIEW_DROP_BEFORE, gtk.TREE_VIEW_DROP_AFTER):
 211                                 new_parent = dest.parentNode
 212                         else:
 213                                 new_parent = dest
 214
 215                         if src.namespaceURI != XMLNS_INTERFACE: return
 216                         if new_parent.namespaceURI != XMLNS_INTERFACE: return
 217
 218                         if new_parent.localName == 'group':
 219                                 if src.localName not in ('implementation', 'group', 'requires'):
 220                                         return
 221                         elif new_parent.localName == 'interface':
 222                                 if src.localName not in ('implementation', 'group'):
 223                                         return
 224                         elif new_parent.localName == 'implementation':
 225                                 if src.localName not in ['requires']:
 226                                         return
 227                         else:
 228                                 return
 229
 230                         remove_element(src)
 231
 232                         if position == gtk.TREE_VIEW_DROP_BEFORE:
 233                                 insert_before(src, dest)
 234                         elif position == gtk.TREE_VIEW_DROP_AFTER:
 235                                 next = dest.nextSibling
 236                                 while next and not next.nodeType == Node.ELEMENT_NODE:
 237                                         next = next.nextSibling
 238                                 if next:
 239                                         insert_before(src, next)
 240                                 else:
 241                                         insert_element(src, new_parent)
 242                         else:
 243                                 insert_element(src, new_parent)
 244                         self.update_version_model()
 245
 246         def add_version(self):
 247                 ImplementationProperties(self)
 248
 249         def add_group(self):
 250                 ImplementationProperties(self, is_group = True)
 251
 252         def add_requires(self):
 253                 elem = self.get_selected()
 254                 if elem.namespaceURI == XMLNS_INTERFACE:
 255                         if elem.localName not in ('group', 'implementation'):
 256                                 elem = elem.parentNode
 257                         if elem.localName in ('group', 'implementation'):
 258                                 Requires(self, parent = elem)
 259                                 return
 260                 rox.alert('Select a group, implementation or requirement!')
 261
 262         def edit_properties(self, path = None, element = None):
 263                 assert not (path and element)
 264
 265                 if element:
 266                         pass
 267                 elif path is None:
 268                         element = self.get_selected()
 269                 else:
 270                         element = self.impl_model[path][1]
 271
 272                 if element.namespaceURI != XMLNS_INTERFACE:
 273                         rox.alert("Sorry, I don't known how to edit %s elements!" % element.namespaceURI)
 274
 275                 if element.localName in ('group', 'implementation'):
 276                         ImplementationProperties(self, element)
 277                 elif element.localName == 'requires':
 278                         Requires(self, parent = element.parentNode, element = element)
 279                 else:
 280                         rox.alert("Sorry, I don't known how to edit %s elements!" % element.localName)
 281
 282         def update_fields(self):
 283                 root = self.doc.documentElement
 284
 285                 def set(name):
 286                         value = singleton_text(root, name)
 287                         if value:
 288                                 self.wTree.get_widget('feed_' + name).set_text(value)
 289                 set('name')
 290                 set('summary')
 291                 set('homepage')
 292
 293                 for icon in children(root, 'icon'):
 294                         if icon.getAttribute('type') == 'image/png':
 295                                 href = icon.getAttribute('href')
 296                                 self.wTree.get_widget('feed_icon').set_text(href)
 297                                 break
 298
 299                 description = singleton_text(root, 'description') or ''
 300                 paragraphs = [format_para(p) for p in description.split('\n\n')]
 301                 buffer = self.wTree.get_widget('feed_description').get_buffer()
 302                 buffer.delete(buffer.get_start_iter(), buffer.get_end_iter())
 303                 buffer.insert_at_cursor('\n'.join(paragraphs))
 304
 305                 key_menu = self.wTree.get_widget('feed_key')
 306                 model = key_menu.get_model()
 307                 if self.key:
 308                         i = 0
 309                         for line in model:
 310                                 if line[0] == self.key:
 311                                         break
 312                                 i += 1
 313                         else:
 314                                 model.append((self.key, 'Missing key (%s)' % self.key))
 315                         key_menu.set_active(i)
 316                 else:
 317                         key_menu.set_active(0)
 318
 319                 self.update_version_model()
 320
 321         def add_archives(self, impl_element, iter):
 322                 for child in child_elements(impl_element):
 323                         if child.namespaceURI != XMLNS_INTERFACE: continue
 324                         if child.localName == 'archive':
 325                                 self.impl_model.append(iter, ['Archive ' + child.getAttribute('href'), child])
 326                         elif child.localName == 'requires':
 327                                 req_iface = child.getAttribute('interface')
 328                                 self.impl_model.append(iter, ['Impl requires %s' % req_iface, child])
 329                         else:
 330                                 self.impl_model.append(iter, ['<%s>' % child.localName, child])
 331
 332         def update_version_model(self):
 333                 self.impl_model.clear()
 334                 impl_tree = self.wTree.get_widget('impl_tree')
 335                 to_expand = []
 336
 337                 def add_impls(elem, iter, attrs):
 338                         """Add all groups, implementations and requirements in elem"""
 339
 340                         for x in child_elements(elem):
 341                                 if x.namespaceURI != XMLNS_INTERFACE: continue
 342
 343                                 if x.localName == 'requires':
 344                                         req_iface = x.getAttribute('interface')
 345                                         new = self.impl_model.append(iter, ['Group requires %s' % req_iface, x])
 346
 347                                 if x.localName not in ('implementation', 'group'): continue
 348
 349                                 new_attrs = attrs.copy()
 350                                 attributes = x.attributes
 351                                 for i in range(attributes.length):
 352                                         a = attributes.item(i)
 353                                         new_attrs[str(a.name)] = a.value
 354
 355                                 if x.localName == 'implementation':
 356                                         version = new_attrs.get('version', '(missing version number)')
 357                                         new = self.impl_model.append(iter, ['Version %s' % version, x])
 358                                         self.add_archives(x, new)
 359                                 elif x.localName == 'group':
 360                                         new = self.impl_model.append(iter, ['Group', x])
 361                                         to_expand.append(self.impl_model.get_path(new))
 362                                         add_impls(x, new, new_attrs)
 363
 364                 add_impls(self.doc.documentElement, None, attrs = {})
 365
 366                 for path in to_expand:
 367                         impl_tree.expand_row(path, False)
 368
 369         def test(self):
 370                 child = os.fork()
 371                 if child == 0:
 372                         try:
 373                                 try:
 374                                         # We are the child
 375                                         # Spawn a grandchild and exit
 376                                         subprocess.Popen(['0launch', '--gui', self.pathname])
 377                                         os._exit(0)
 378                                 except:
 379                                         traceback.print_exc()
 380                         finally:
 381                                 os._exit(1)
 382                 pid, status = os.waitpid(child, 0)
 383                 assert pid == child
 384                 if status:
 385                         raise Exception('Failed to run 0launch - status code %d' % status)
 386
 387         def update_doc(self):
 388                 root = self.doc.documentElement
 389                 def update(name, required = False, attrs = {}, value_attr = None):
 390                         widget = self.wTree.get_widget('feed_' + name)
 391                         if isinstance(widget, g.TextView):
 392                                 buffer = widget.get_buffer()
 393                                 text = buffer.get_text(buffer.get_start_iter(), buffer.get_end_iter())
 394                                 paras = ['\n'.join(textwrap.wrap(para, 80)) for para in text.split('\n') if para.strip()]
 395                                 value = '\n' + '\n\n'.join(paras)
 396                         else:
 397                                 value = widget.get_text()
 398                         elems = list(children(root, name, attrs = attrs))
 399                         if value:
 400                                 if elems:
 401                                         elem = elems[0]
 402                                 else:
 403                                         elem = create_element(root, name,
 404                                                                 before = ['group', 'implementation', 'requires'])
 405                                         for x in attrs:
 406                                                 elem.setAttribute(x, attrs[x])
 407                                 if value_attr:
 408                                         elem.setAttribute(value_attr, value)
 409                                         set_data(elem, None)
 410                                 else:
 411                                         set_data(elem, value)
 412                         else:
 413                                 if required:
 414                                         raise Exception('Missing required field "%s"' % name)
 415                                 for e in elems:
 416                                         remove_element(e)
 417
 418                 update('name', True)
 419                 update('summary', True)
 420                 update('description', True)
 421                 update('homepage')
 422                 update('icon', attrs = {'type': 'image/png'}, value_attr = 'href')
 423
 424                 uri = self.wTree.get_widget('feed_url').get_text()
 425                 if uri:
 426                         root.setAttribute('uri', uri)
 427                 elif root.hasAttribute('uri'):
 428                         root.removeAttribute('uri')
 429
 430                 key_menu = self.wTree.get_widget('feed_key')
 431                 key_model = key_menu.get_model()
 432                 self.key = key_model[key_menu.get_active()][0]
 433
 434         def save(self, callback = None):
 435                 self.update_doc()
 436                 if self.key:
 437                         sign = signing.sign_xml
 438                 else:
 439                         sign = signing.sign_unsigned
 440                 data = self.doc.toxml() + '\n'
 441
 442                 gen = sign(self.pathname, data, self.key, callback)
 443                 # May require interaction to get the pass-phrase, so run in the background...
 444                 if gen:
 445                         tasks.Task(gen)
 446
 447         def add_archive(self):
 448                 archive.AddArchiveBox(self)
 449
 450         def xds_load_from_file(self, path):
 451                 archive.AddArchiveBox(self, local_archive = path)
 452
 453         def remove_version(self, path = None):
 454                 elem = self.get_selected()
 455                 remove_element(elem)
 456                 self.update_version_model()
 457
 458         def get_selected(self):
 459                 tree = self.wTree.get_widget('impl_tree')
 460                 sel = tree.get_selection()
 461                 model, iter = sel.get_selected()
 462                 if not iter:
 463                         raise Exception('Select something first!')
 464                 return model[iter][1]
 465
 466         def find_implementation(self, id):
 467                 def find_impl(parent):
 468                         for x in child_elements(parent):
 469                                 if x.namespaceURI != XMLNS_INTERFACE: continue
 470                                 if x.localName == 'group':
 471                                         sub = find_impl(x)
 472                                         if sub: return sub
 473                                 elif x.localName == 'implementation':
 474                                         if x.getAttribute('id') == id:
 475                                                 return x
 476                 return find_impl(self.doc.documentElement)