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