main.py

   1 from xml.dom import Node, minidom
   2
   3 import rox, os, pango, sys, textwrap, traceback, subprocess, time, urlparse, shutil
   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.injector import model
  14 from zeroinstall.zerostore import unpack, Stores
  15
  16 RESPONSE_SAVE = 0
  17 RESPONSE_SAVE_AND_TEST = 1
  18
  19 xml_header = """<?xml version="1.0" ?>
  20 <?xml-stylesheet type='text/xsl' href='interface.xsl'?>
  21 """
  22
  23 gladefile = os.path.join(rox.app_dir, '0publish-gui.glade')
  24
  25 # Zero Install implementation cache
  26 stores = Stores()
  27
  28 stylesheet_src = os.path.join(os.path.dirname(__file__), 'interface.xsl')
  29
  30 def available_in_path(prog):
  31         for d in os.environ['PATH'].split(':'):
  32                 path = os.path.join(d, prog)
  33                 if os.path.isfile(path):
  34                         return True
  35         return False
  36
  37 def choose_feed():
  38         tree = gtk.glade.XML(gladefile, 'no_file_specified')
  39         box = tree.get_widget('no_file_specified')
  40         tree.get_widget('new_button').grab_focus()
  41         resp = box.run()
  42         box.destroy()
  43         if resp == 0:
  44                 chooser = g.FileChooserDialog('Choose a location for the new feed',
  45                                               None, g.FILE_CHOOSER_ACTION_SAVE)
  46                 chooser.set_current_name('MyProg.xml')
  47                 chooser.add_button(g.STOCK_CANCEL, g.RESPONSE_CANCEL)
  48                 chooser.add_button(g.STOCK_NEW, g.RESPONSE_OK)
  49         elif resp == 1:
  50                 chooser = g.FileChooserDialog('Choose the feed to edit',
  51                                               None, g.FILE_CHOOSER_ACTION_OPEN)
  52                 chooser.add_button(g.STOCK_CANCEL, g.RESPONSE_CANCEL)
  53                 chooser.add_button(g.STOCK_OPEN, g.RESPONSE_OK)
  54         else:
  55                 sys.exit(1)
  56         chooser.set_default_response(g.RESPONSE_OK)
  57         if chooser.run() != g.RESPONSE_OK:
  58                 sys.exit(1)
  59         path = chooser.get_filename()
  60         chooser.destroy()
  61         return FeedEditor(path)
  62
  63 def combo_set_text(combo, text):
  64         if combo.get_active_text() or text:
  65                 model =  combo.get_model()
  66                 i = 0
  67                 for row in model:
  68                         if row[0] == text:
  69                                 combo.set_active(i)
  70                                 return
  71                         i += 1
  72                 combo.append_text(text)
  73                 combo.set_active(i)
  74         else:
  75                 return
  76
  77 def list_attrs(element):
  78         attrs = element.attributes
  79         names = []
  80         for x in range(attrs.length):
  81                 attr = attrs.item(x)
  82
  83                 if attr.name in ['id', 'version-modifier']: continue
  84                 if element.localName == 'implementation' and attr.name == 'version': continue
  85
  86                 if attr.name == 'stability':
  87                         names.append(attr.value)
  88                 else:
  89                         names.append(attr.name)
  90         if names:
  91                 return ' (%s)' % ', '.join(names)
  92         else:
  93                 return ''
  94
  95 emptyFeed = """<?xml version='1.0'?>
  96 <interface xmlns="%s">
  97   <name>Name</name>
  98 </interface>
  99 """ % (XMLNS_INTERFACE)
 100
 101 element_target = ('INTERNAL:FeedEditor/Element', gtk.TARGET_SAME_WIDGET, 0)
 102
 103 class FeedEditor(loading.XDSLoader):
 104         def __init__(self, pathname):
 105                 loading.XDSLoader.__init__(self, None)
 106
 107                 self.pathname = pathname
 108
 109                 self.wTree = gtk.glade.XML(gladefile, 'main')
 110                 self.window = self.wTree.get_widget('main')
 111                 self.window.connect('destroy', rox.toplevel_unref)
 112                 self.xds_proxy_for(self.window)
 113
 114                 help = gtk.glade.XML(gladefile, 'main_help')
 115                 help_box = help.get_widget('main_help')
 116                 help_box.set_default_size(g.gdk.screen_width() / 4,
 117                                       g.gdk.screen_height() / 4)
 118                 help_box.connect('delete-event', lambda box, ev: True)
 119                 help_box.connect('response', lambda box, resp: box.hide())
 120
 121                 def resp(box, resp):
 122                         if resp == g.RESPONSE_HELP:
 123                                 help_box.present()
 124                         elif resp == RESPONSE_SAVE_AND_TEST:
 125                                 self.save(self.test)
 126                         elif resp == RESPONSE_SAVE:
 127                                 self.save()
 128                         else:
 129                                 box.destroy()
 130                 self.window.connect('response', resp)
 131                 rox.toplevel_ref()
 132
 133                 key_menu = self.wTree.get_widget('feed_key')
 134                 key_model = g.ListStore(str, str)
 135                 key_menu.set_model(key_model)
 136                 cell = g.CellRendererText()
 137                 cell.set_property('ellipsize', pango.ELLIPSIZE_MIDDLE)
 138                 key_menu.pack_start(cell)
 139                 key_menu.add_attribute(cell, 'text', 1)
 140
 141                 self.update_key_model()
 142
 143                 self.impl_model = g.TreeStore(str, object)
 144                 impl_tree = self.wTree.get_widget('impl_tree')
 145                 impl_tree.set_model(self.impl_model)
 146                 text = g.CellRendererText()
 147                 column = g.TreeViewColumn('', text)
 148                 column.add_attribute(text, 'text', 0)
 149                 impl_tree.append_column(column)
 150
 151                 impl_tree.enable_model_drag_source(gtk.gdk.BUTTON1_MASK, [element_target], gtk.gdk.ACTION_MOVE)
 152                 impl_tree.enable_model_drag_dest([element_target], gtk.gdk.ACTION_MOVE)
 153
 154                 sel = impl_tree.get_selection()
 155                 sel.set_mode(g.SELECTION_BROWSE)
 156
 157                 if os.path.exists(self.pathname):
 158                         data, _, self.key = signing.check_signature(self.pathname)
 159                         self.doc = minidom.parseString(data)
 160                         self.update_fields()
 161
 162                         # Default to showing the versions tab
 163                         self.wTree.get_widget('notebook').next_page()
 164                 else:
 165                         default_name = os.path.basename(self.pathname)
 166                         if default_name.endswith('.xml'):
 167                                 default_name = default_name[:-4]
 168                         self.wTree.get_widget('feed_name').set_text(default_name)
 169                         self.doc = minidom.parseString(emptyFeed)
 170                         self.key = None
 171                         key_menu.set_active(0)
 172
 173                 root = self.impl_model.get_iter_root()
 174                 if root:
 175                         sel.select_iter(root)
 176
 177                 self.wTree.get_widget('generate_key').connect('clicked', lambda b: self.generate_key())
 178
 179                 self.wTree.get_widget('add_implementation').connect('clicked', lambda b: self.add_version())
 180                 self.wTree.get_widget('add_archive').connect('clicked', lambda b: self.add_archive())
 181                 self.wTree.get_widget('add_requires').connect('clicked', lambda b: self.add_requires())
 182                 self.wTree.get_widget('add_group').connect('clicked', lambda b: self.add_group())
 183                 self.wTree.get_widget('edit_properties').connect('clicked', lambda b: self.edit_properties())
 184                 self.wTree.get_widget('remove').connect('clicked', lambda b: self.remove_version())
 185                 impl_tree.connect('row-activated', lambda tv, path, col: self.edit_properties(path))
 186                 impl_tree.connect('drag-data-received', self.tree_drag_data_received)
 187
 188         def update_key_model(self):
 189                 key_menu = self.wTree.get_widget('feed_key')
 190                 key_model = key_menu.get_model()
 191                 keys = signing.get_secret_keys()
 192                 key_model.clear()
 193                 key_model.append((None, '(unsigned)'))
 194                 for k in keys:
 195                         key_model.append(k)
 196
 197         def generate_key(self):
 198                 for x in ['xterm', 'konsole']:
 199                         if available_in_path(x):
 200                                 child = subprocess.Popen([x, '-e', 'gpg', '--gen-key'], stderr = subprocess.PIPE)
 201                                 break
 202                 else:
 203                         child = subprocess.Popen(['gnome-terminal', '-e', 'gpg --gen-key'], stderr = subprocess.PIPE)
 204
 205                 def get_keygen_out():
 206                         errors = ''
 207                         while True:
 208                                 yield signing.InputBlocker(child.stderr)
 209                                 data = os.read(child.stderr.fileno(), 100)
 210                                 if not data:
 211                                         break
 212                                 errors += data
 213                         self.update_key_model()
 214                         if errors:
 215                                 rox.alert('Errors from terminal: %s' % errors)
 216
 217                 tasks.Task(get_keygen_out())
 218
 219         def tree_drag_data_received(self, treeview, context, x, y, selection, info, time):
 220                 if not selection: return
 221                 drop_info = treeview.get_dest_row_at_pos(x, y)
 222                 if drop_info:
 223                         model = treeview.get_model()
 224                         path, position = drop_info
 225
 226                         src = self.get_selected()
 227                         dest = model[path][1]
 228
 229                         def is_ancestor_or_self(a, b):
 230                                 while b:
 231                                         if b is a: return True
 232                                         b = b.parentNode
 233                                 return False
 234
 235                         if is_ancestor_or_self(src, dest):
 236                                 # Can't move an element into itself!
 237                                 return
 238
 239                         if position in (gtk.TREE_VIEW_DROP_BEFORE, gtk.TREE_VIEW_DROP_AFTER):
 240                                 new_parent = dest.parentNode
 241                         else:
 242                                 new_parent = dest
 243
 244                         if src.namespaceURI != XMLNS_INTERFACE: return
 245                         if new_parent.namespaceURI != XMLNS_INTERFACE: return
 246
 247                         if new_parent.localName == 'group':
 248                                 if src.localName not in ('implementation', 'group', 'requires'):
 249                                         return
 250                         elif new_parent.localName == 'interface':
 251                                 if src.localName not in ('implementation', 'group'):
 252                                         return
 253                         elif new_parent.localName == 'implementation':
 254                                 if src.localName not in ['requires']:
 255                                         return
 256                         else:
 257                                 return
 258
 259                         remove_element(src)
 260
 261                         if position == gtk.TREE_VIEW_DROP_BEFORE:
 262                                 insert_before(src, dest)
 263                         elif position == gtk.TREE_VIEW_DROP_AFTER:
 264                                 next = dest.nextSibling
 265                                 while next and not next.nodeType == Node.ELEMENT_NODE:
 266                                         next = next.nextSibling
 267                                 if next:
 268                                         insert_before(src, next)
 269                                 else:
 270                                         insert_element(src, new_parent)
 271                         else:
 272                                 for next in child_elements(new_parent):
 273                                         insert_before(src, next)
 274                                         break
 275                                 else:
 276                                         insert_element(src, new_parent)
 277                         self.update_version_model()
 278
 279         def add_version(self):
 280                 ImplementationProperties(self)
 281
 282         def add_group(self):
 283                 ImplementationProperties(self, is_group = True)
 284
 285         def add_requires(self):
 286                 elem = self.get_selected()
 287                 if elem.namespaceURI == XMLNS_INTERFACE:
 288                         if elem.localName not in ('group', 'implementation'):
 289                                 elem = elem.parentNode
 290                         if elem.localName in ('group', 'implementation'):
 291                                 Requires(self, parent = elem)
 292                                 return
 293                 rox.alert('Select a group or implementation!')
 294
 295         def edit_properties(self, path = None, element = None):
 296                 assert not (path and element)
 297
 298                 if element:
 299                         pass
 300                 elif path is None:
 301                         element = self.get_selected()
 302                 else:
 303                         element = self.impl_model[path][1]
 304
 305                 if element.namespaceURI != XMLNS_INTERFACE:
 306                         rox.alert("Sorry, I don't known how to edit %s elements!" % element.namespaceURI)
 307
 308                 if element.localName in ('group', 'implementation'):
 309                         ImplementationProperties(self, element)
 310                 elif element.localName == 'requires':
 311                         Requires(self, parent = element.parentNode, element = element)
 312                 else:
 313                         rox.alert("Sorry, I don't known how to edit %s elements!" % element.localName)
 314
 315         def update_fields(self):
 316                 root = self.doc.documentElement
 317
 318                 def set(name):
 319                         value = singleton_text(root, name)
 320                         if value:
 321                                 self.wTree.get_widget('feed_' + name).set_text(value)
 322                 set('name')
 323                 set('summary')
 324                 set('homepage')
 325
 326                 uri = root.getAttribute('uri')
 327                 if uri:
 328                         self.wTree.get_widget('feed_url').set_text(uri)
 329
 330                 for icon in children(root, 'icon'):
 331                         if icon.getAttribute('type') == 'image/png':
 332                                 href = icon.getAttribute('href')
 333                                 self.wTree.get_widget('feed_icon').set_text(href)
 334                                 break
 335
 336                 description = singleton_text(root, 'description') or ''
 337                 paragraphs = [format_para(p) for p in description.split('\n\n')]
 338                 buffer = self.wTree.get_widget('feed_description').get_buffer()
 339                 buffer.delete(buffer.get_start_iter(), buffer.get_end_iter())
 340                 buffer.insert_at_cursor('\n'.join(paragraphs))
 341
 342                 key_menu = self.wTree.get_widget('feed_key')
 343                 model = key_menu.get_model()
 344                 if self.key:
 345                         i = 0
 346                         for line in model:
 347                                 if line[0] == self.key:
 348                                         break
 349                                 i += 1
 350                         else:
 351                                 model.append((self.key, 'Missing key (%s)' % self.key))
 352                         key_menu.set_active(i)
 353                 else:
 354                         key_menu.set_active(0)
 355
 356                 self.update_version_model()
 357
 358         def add_archives(self, impl_element, iter):
 359                 for child in child_elements(impl_element):
 360                         if child.namespaceURI != XMLNS_INTERFACE: continue
 361                         if child.localName == 'archive':
 362                                 self.impl_model.append(iter, ['Archive ' + child.getAttribute('href'), child])
 363                         elif child.localName == 'requires':
 364                                 req_iface = child.getAttribute('interface')
 365                                 self.impl_model.append(iter, ['Impl requires %s' % req_iface, child])
 366                         else:
 367                                 self.impl_model.append(iter, ['<%s>' % child.localName, child])
 368
 369         def update_version_model(self):
 370                 impl_tree = self.wTree.get_widget('impl_tree')
 371
 372                 # Remember which ones are open
 373                 expanded_elements = set()
 374                 impl_tree.map_expanded_rows(lambda tv, path: expanded_elements.add(self.impl_model[path][1]))
 375
 376                 initial_build = not self.impl_model.get_iter_root()
 377
 378                 self.impl_model.clear()
 379                 to_expand = []
 380
 381                 def add_impls(elem, iter, attrs):
 382                         """Add all groups, implementations and requirements in elem"""
 383
 384                         for x in child_elements(elem):
 385                                 if x.namespaceURI != XMLNS_INTERFACE: continue
 386
 387                                 if x.localName == 'requires':
 388                                         req_iface = x.getAttribute('interface')
 389                                         new = self.impl_model.append(iter, ['Group requires %s' % req_iface, x])
 390
 391                                 if x.localName not in ('implementation', 'group'): continue
 392
 393                                 new_attrs = attrs.copy()
 394                                 attributes = x.attributes
 395                                 for i in range(attributes.length):
 396                                         a = attributes.item(i)
 397                                         new_attrs[str(a.name)] = a.value
 398
 399                                 if x.localName == 'implementation':
 400                                         version = new_attrs.get('version', '(missing version number)') + \
 401                                                   (new_attrs.get('version-modifier') or '')
 402                                         new = self.impl_model.append(iter, ['Version %s%s' % (version, list_attrs(x)), x])
 403                                         self.add_archives(x, new)
 404                                 elif x.localName == 'group':
 405                                         new = self.impl_model.append(iter, ['Group%s' % list_attrs(x), x])
 406                                         if initial_build:
 407                                                 expanded_elements.add(x)
 408                                         add_impls(x, new, new_attrs)
 409
 410                 add_impls(self.doc.documentElement, None, attrs = {})
 411
 412                 def may_expand(model, path, iter):
 413                         if model[iter][1] in expanded_elements:
 414                                 impl_tree.expand_row(path, False)
 415                 self.impl_model.foreach(may_expand)
 416
 417         def test(self, args = []):
 418                 child = os.fork()
 419                 if child == 0:
 420                         try:
 421                                 try:
 422                                         # We are the child
 423                                         # Spawn a grandchild and exit
 424                                         subprocess.Popen(['0launch', '--gui'] + args + [self.pathname])
 425                                         os._exit(0)
 426                                 except:
 427                                         traceback.print_exc()
 428                         finally:
 429                                 os._exit(1)
 430                 pid, status = os.waitpid(child, 0)
 431                 assert pid == child
 432                 if status:
 433                         raise Exception('Failed to run 0launch - status code %d' % status)
 434
 435         def update_doc(self):
 436                 root = self.doc.documentElement
 437                 def update(name, required = False, attrs = {}, value_attr = None):
 438                         widget = self.wTree.get_widget('feed_' + name)
 439                         if isinstance(widget, g.TextView):
 440                                 buffer = widget.get_buffer()
 441                                 text = buffer.get_text(buffer.get_start_iter(), buffer.get_end_iter())
 442                                 paras = ['\n'.join(textwrap.wrap(para, 80)) for para in text.split('\n') if para.strip()]
 443                                 value = '\n' + '\n\n'.join(paras)
 444                         else:
 445                                 value = widget.get_text()
 446                         elems = list(children(root, name, attrs = attrs))
 447                         if value:
 448                                 if elems:
 449                                         elem = elems[0]
 450                                 else:
 451                                         elem = create_element(root, name,
 452                                                                 before = ['group', 'implementation', 'requires'])
 453                                         for x in attrs:
 454                                                 elem.setAttribute(x, attrs[x])
 455                                 if value_attr:
 456                                         elem.setAttribute(value_attr, value)
 457                                         set_data(elem, None)
 458                                 else:
 459                                         set_data(elem, value)
 460                         else:
 461                                 if required:
 462                                         raise Exception('Missing required field "%s"' % name)
 463                                 for e in elems:
 464                                         remove_element(e)
 465
 466                 update('name', True)
 467                 update('summary', True)
 468                 update('description', True)
 469                 update('homepage')
 470                 update('icon', attrs = {'type': 'image/png'}, value_attr = 'href')
 471
 472                 uri = self.wTree.get_widget('feed_url').get_text()
 473                 if uri:
 474                         root.setAttribute('uri', uri)
 475                 elif root.hasAttribute('uri'):
 476                         root.removeAttribute('uri')
 477
 478                 key_menu = self.wTree.get_widget('feed_key')
 479                 key_model = key_menu.get_model()
 480                 self.key = key_model[key_menu.get_active()][0]
 481
 482         def export_stylesheet_and_key(self):
 483                 dir = os.path.dirname(self.pathname)
 484                 stylesheet = os.path.join(dir, 'interface.xsl')
 485                 if not os.path.exists(stylesheet):
 486                         shutil.copyfile(stylesheet_src, stylesheet)
 487                         rox.info("I have saved a stylesheet as '%s'. You should upload "
 488                                 "this to your web-server in the same directory as the feed file. "
 489                                 "This allows browsers to display the feed nicely." % stylesheet)
 490
 491                 exported =  signing.export_key(dir, self.key)
 492                 if exported:
 493                         rox.info("I have exported your public key as '%s'. You should upload "
 494                                 "this to your web-server in the same directory as the feed file. "
 495                                 "This allows people to check the signature on your feed." % exported)
 496
 497         def save(self, callback = None):
 498                 self.update_doc()
 499                 if self.key:
 500                         sign = signing.sign_xml
 501                         self.export_stylesheet_and_key()
 502                 else:
 503                         sign = signing.sign_unsigned
 504                 data = xml_header + self.doc.documentElement.toxml() + '\n'
 505
 506                 gen = sign(self.pathname, data, self.key, callback)
 507                 # May require interaction to get the pass-phrase, so run in the background...
 508                 if gen:
 509                         tasks.Task(gen)
 510
 511         def add_archive(self):
 512                 archive.AddArchiveBox(self)
 513
 514         def xds_load_from_file(self, path):
 515                 archive.AddArchiveBox(self, local_archive = path)
 516
 517         def remove_version(self, path = None):
 518                 elem = self.get_selected()
 519                 remove_element(elem)
 520                 self.update_version_model()
 521
 522         def get_selected(self):
 523                 tree = self.wTree.get_widget('impl_tree')
 524                 sel = tree.get_selection()
 525                 model, iter = sel.get_selected()
 526                 if not iter:
 527                         raise Exception('Select something first!')
 528                 return model[iter][1]
 529
 530         def find_implementation(self, id):
 531                 def find_impl(parent):
 532                         for x in child_elements(parent):
 533                                 if x.namespaceURI != XMLNS_INTERFACE: continue
 534                                 if x.localName == 'group':
 535                                         sub = find_impl(x)
 536                                         if sub: return sub
 537                                 elif x.localName == 'implementation':
 538                                         if x.getAttribute('id') == id:
 539                                                 return x
 540                 return find_impl(self.doc.documentElement)
 541
 542         def list_versions(self):
 543                 """Return a list of (version, element) pairs, one for each <implementation>."""
 544                 versions = []
 545
 546                 def add_versions(parent, version):
 547                         for x in child_elements(parent):
 548                                 if x.namespaceURI != XMLNS_INTERFACE: continue
 549                                 if x.hasAttribute('version'): version = x.getAttribute('version')
 550                                 if x.localName == 'group':
 551                                         add_versions(x, version)
 552                                 elif x.localName == 'implementation':
 553                                         versions.append((model.parse_version(version), x))
 554
 555                 add_versions(self.doc.documentElement, version = None)
 556
 557                 return versions