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