| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| import os |
| import re |
| from datetime import datetime |
| from tempfile import mkdtemp |
| from shutil import rmtree |
| |
| from BeautifulSoup import BeautifulSoup |
| import git |
| from pylons import app_globals as g |
| from pylons import tmpl_context as c |
| from ming.orm import ThreadLocalORMSession |
| from formencode import validators as fev |
| from tg import ( |
| expose, |
| validate, |
| flash, |
| redirect, |
| ) |
| from tg.decorators import ( |
| with_trailing_slash, |
| without_trailing_slash, |
| ) |
| |
| from allura.controllers import BaseController |
| from allura.lib import helpers as h |
| from allura.lib.plugin import ImportIdConverter |
| from allura.lib.decorators import ( |
| require_post, |
| ) |
| from allura import model as M |
| from forgeimporters.base import ( |
| ToolImporter, |
| ToolImportForm, |
| ) |
| from forgeimporters.github import GitHubProjectExtractor |
| from forgewiki import model as WM |
| from forgewiki.converters import mediawiki2markdown |
| |
| |
| import logging |
| log = logging.getLogger(__name__) |
| |
| TARGET_APPS = [] |
| |
| try: |
| from forgewiki.wiki_main import ForgeWikiApp |
| TARGET_APPS.append(ForgeWikiApp) |
| except ImportError: |
| pass |
| |
| |
| class GitHubWikiImportForm(ToolImportForm): |
| gh_project_name = fev.UnicodeString(not_empty=True) |
| gh_user_name = fev.UnicodeString(not_empty=True) |
| tool_option = fev.UnicodeString(if_missing=u'') |
| |
| |
| class GitHubWikiImportController(BaseController): |
| |
| def __init__(self): |
| self.importer = GitHubWikiImporter() |
| |
| @property |
| def target_app(self): |
| return self.importer.target_app[0] |
| |
| @with_trailing_slash |
| @expose('jinja:forgeimporters.github:templates/wiki/index.html') |
| def index(self, **kw): |
| return dict(importer=self.importer, |
| target_app=self.target_app) |
| |
| @without_trailing_slash |
| @expose() |
| @require_post() |
| @validate(GitHubWikiImportForm(ForgeWikiApp), error_handler=index) |
| def create(self, gh_project_name, gh_user_name, mount_point, mount_label, **kw): |
| if self.importer.enforce_limit(c.project): |
| self.importer.post( |
| project_name=gh_project_name, |
| user_name=gh_user_name, |
| mount_point=mount_point, |
| mount_label=mount_label, |
| tool_option=kw.get('tool_option')) |
| flash('Wiki import has begun. Your new wiki will be available ' |
| 'when the import is complete.') |
| else: |
| flash('There are too many imports pending at this time. Please wait and try again.', 'error') |
| redirect(c.project.url() + 'admin/') |
| |
| |
| class GitHubWikiImporter(ToolImporter): |
| target_app = TARGET_APPS |
| controller = GitHubWikiImportController |
| source = 'GitHub' |
| tool_label = 'Wiki' |
| tool_description = 'Import your wiki from GitHub' |
| tool_option = {"import_history": "Import history"} |
| |
| mediawiki_exts = ['.wiki', '.mediawiki'] |
| markdown_exts = ['.markdown,' '.mdown', '.mkdn', '.mkd', '.md'] |
| textile_exts = ['.textile'] |
| # List of supported formats https://github.com/gollum/gollum/wiki#page-files |
| supported_formats = [ |
| '.asciidoc', |
| '.creole', |
| '.org', |
| '.pod', |
| '.rdoc', |
| '.rest.txt', |
| '.rst.txt', |
| '.rest', |
| '.rst', |
| ] + mediawiki_exts + markdown_exts + textile_exts |
| available_pages = [] |
| |
| def import_tool(self, project, user, project_name=None, mount_point=None, mount_label=None, user_name=None, |
| tool_option=None, **kw): |
| """ Import a GitHub wiki into a new Wiki Allura tool. |
| |
| """ |
| project_name = "%s/%s" % (user_name, project_name) |
| extractor = GitHubProjectExtractor(project_name) |
| if not extractor.has_wiki(): |
| return |
| |
| self.github_wiki_url = extractor.get_page_url('wiki_url').replace('.wiki', '/wiki') |
| self.app = project.install_app( |
| "Wiki", |
| mount_point=mount_point or 'wiki', |
| mount_label=mount_label or 'Wiki', |
| import_id={ |
| 'source': self.source, |
| 'project_name': project_name, |
| } |
| ) |
| with_history = tool_option == 'import_history' |
| ThreadLocalORMSession.flush_all() |
| try: |
| M.session.artifact_orm_session._get().skip_mod_date = True |
| with h.push_config(c, app=self.app): |
| self.import_pages(extractor.get_page_url('wiki_url'), history=with_history) |
| ThreadLocalORMSession.flush_all() |
| M.AuditLog.log( |
| 'import tool %s from %s on %s' % ( |
| self.app.config.options.mount_point, |
| project_name, |
| self.source), |
| project=project, |
| user=user, |
| url=self.app.url) |
| g.post_event('project_updated') |
| return self.app |
| except Exception as e: |
| h.make_app_admin_only(self.app) |
| raise |
| finally: |
| M.session.artifact_orm_session._get().skip_mod_date = False |
| |
| def _set_available_pages(self, commit): |
| pages = [blob.name for blob in commit.tree.traverse()] |
| pages = map(os.path.splitext, pages) |
| pages = [self._convert_page_name(name) for name, ext in pages |
| if ext in self.supported_formats] |
| self.available_pages = pages |
| |
| def _without_history(self, commit): |
| self._set_available_pages(commit) |
| for page in commit.tree.blobs: |
| self._make_page(page.data_stream.read(), page.name, commit) |
| |
| def _with_history(self, commit): |
| for filename in commit.stats.files.keys(): |
| self._set_available_pages(commit) |
| if filename in commit.tree: |
| text = commit.tree[filename].data_stream.read() |
| else: |
| # file is deleted |
| text = '' |
| self._make_page(text, filename, commit) |
| |
| def _make_page(self, text, filename, commit): |
| orig_name, ext = os.path.splitext(filename) |
| if ext and ext not in self.supported_formats: |
| log.info('Not a wiki page %s. Skipping.' % filename) |
| return |
| mod_date = datetime.utcfromtimestamp(commit.committed_date) |
| name = self._convert_page_name(orig_name) |
| wiki_page = WM.Page.upsert(name) |
| if filename in commit.tree: |
| wiki_page.text = self.convert_markup(h.really_unicode(text), filename) |
| wiki_page.timestamp = wiki_page.mod_date = mod_date |
| wiki_page.viewable_by = ['all'] |
| else: |
| wiki_page.delete() |
| wiki_page.import_id = ImportIdConverter.get().expand(orig_name, self.app) |
| wiki_page.commit() |
| return wiki_page |
| |
| def _convert_page_name(self, name): |
| """Convert '-' and '/' into spaces in page name to match github behavior""" |
| return name.replace('-', ' ').replace('/', ' ') |
| |
| def import_pages(self, wiki_url, history=None): |
| wiki_path = mkdtemp() |
| wiki = git.Repo.clone_from(wiki_url, to_path=wiki_path, bare=True) |
| if not history: |
| self._without_history(wiki.heads.master.commit) |
| else: |
| for commit in reversed(list(wiki.iter_commits())): |
| self._with_history(commit) |
| rmtree(wiki_path) |
| |
| def convert_markup(self, text, filename): |
| """Convert any supported github markup into Allura-markdown. |
| |
| Conversion happens in 4 phases: |
| |
| 1. Convert source text to a html using h.render_any_markup. |
| 2. Rewrite links that match the wiki URL prefix with new location. |
| 3. Convert resulting html to a markdown using html2text, if available. |
| 4. Convert gollum tags |
| |
| If html2text module isn't available then only phases 1 and 2 will be executed. |
| |
| Files in mediawiki format are converted using mediawiki2markdown |
| if html2text is available. |
| """ |
| name, ext = os.path.splitext(filename) |
| if ext in self.markdown_exts: |
| return text |
| |
| try: |
| import html2text |
| html2text.BODY_WIDTH = 0 |
| except ImportError: |
| html2text = None |
| |
| if ext and ext in self.mediawiki_exts: |
| if html2text: |
| text = mediawiki2markdown(text) |
| text = self.convert_gollum_tags(text) |
| # Don't have html here, so we can't call self._rewrite_links. |
| # Falling back to simpler rewriter. |
| prefix = self.github_wiki_url |
| new_prefix = self.app.url |
| if not prefix.endswith('/'): |
| prefix += '/' |
| if not new_prefix.endswith('/'): |
| new_prefix += '/' |
| _re = re.compile(r'%s(\S*)' % prefix) |
| def repl(m): |
| return new_prefix + self._convert_page_name(m.group(1)) |
| text = _re.sub(repl, text) |
| else: |
| text = h.render_any_markup(filename, text) |
| text = self.rewrite_links(text, self.github_wiki_url, self.app.url) |
| return text |
| elif ext and ext in self.textile_exts: |
| text = self._prepare_textile_text(text) |
| |
| text = h.render_any_markup(filename, text) |
| text = self.rewrite_links(text, self.github_wiki_url, self.app.url) |
| if html2text: |
| text = html2text.html2text(text) |
| text = self.convert_gollum_tags(text) |
| text = text.replace('<notextile>', '').replace('</notextile>', '') |
| text = text.replace('<notextile>', '').replace('</notextile>', '') |
| text = text.replace('<notextile>', '').replace('</notextile>', '') |
| return text |
| else: |
| text = h.render_any_markup(filename, text) |
| text = self.rewrite_links(text, self.github_wiki_url, self.app.url) |
| if html2text: |
| text = html2text.html2text(text) |
| text = self.convert_gollum_tags(text) |
| return text |
| |
| def convert_gollum_tags(self, text): |
| tag_re = re.compile(r''' |
| (?P<quote>')? # optional tag escaping |
| (?P<tag>\[\[ # tag start |
| (?P<link>[^]]+) # title/link/filename with options |
| \]\]) # tag end |
| ''', re.VERBOSE) |
| return tag_re.sub(self._gollum_tag_match, text) |
| |
| def _gollum_tag_match(self, match): |
| available_options = [ |
| 'alt=', |
| 'frame', |
| 'align=', |
| 'float', |
| 'width=', |
| 'height=', |
| ] |
| quote = match.groupdict().get('quote') |
| if quote: |
| # tag is escaped, return untouched |
| return match.group('tag') |
| link = match.group('link').split('|') |
| title = options = None |
| if len(link) == 1: |
| link = link[0] |
| elif any(map(lambda opt: link[1].startswith(opt), available_options)): |
| # second element is option -> first is the link |
| link, options = link[0], link[1:] |
| else: |
| title, link, options = link[0], link[1], link[2:] |
| |
| if link == '_TOC_': |
| return '[TOC]' |
| |
| if link.startswith('http://') or link.startswith('https://'): |
| sub = self._gollum_external_link |
| # TODO: add embedded images and file links |
| else: |
| sub = self._gollum_page_link |
| return sub(link, title, options) |
| |
| def _gollum_external_link(self, link, title, options): |
| if title: |
| return u'[{}]({})'.format(title, link) |
| return u'<{}>'.format(link) |
| |
| def _gollum_page_link(self, link, title, options): |
| page = self._convert_page_name(link) |
| page = page.replace(u'&', u'&') # allow & in page links |
| # gollum page lookups are case-insensitive, you'll always get link to |
| # whatever comes first in the file system, no matter how you refer to a page. |
| # E.g. if you have two pages: a.md and A.md both [[a]] and [[A]] will refer a.md. |
| # We're emulating this behavior using list of all available pages |
| try: |
| idx = map(lambda p: p.lower(), self.available_pages).index(page.lower()) |
| except ValueError: |
| idx = None |
| if idx is not None: |
| page = self.available_pages[idx] |
| |
| if title: |
| return u'[{}]({})'.format(title, page) |
| return u'[{}]'.format(page) |
| |
| def rewrite_links(self, html, prefix, new_prefix): |
| if not prefix.endswith('/'): |
| prefix += '/' |
| if not new_prefix.endswith('/'): |
| new_prefix += '/' |
| soup = BeautifulSoup(html) |
| for a in soup.findAll('a'): |
| if a.get('href').startswith(prefix): |
| page = a['href'].replace(prefix, '') |
| new_page = self._convert_page_name(page) |
| a['href'] = new_prefix + new_page |
| if a.text == page: |
| a.setString(new_page) |
| elif a.text == prefix + page: |
| a.setString(new_prefix + new_page) |
| return unicode(soup) |
| |
| def _prepare_textile_text(self, text): |
| # need to convert lists properly |
| text_lines = text.splitlines() |
| for i, l in enumerate(text_lines): |
| if l.lstrip().startswith('#'): |
| text_lines[i] = l.lstrip() |
| text = '\n'.join(text_lines) |
| |
| # to convert gollum tags properly used <notextile> tag, |
| # so these tags will not be affected by converter |
| text = text.replace('[[', '<notextile>[[').replace(']]', ']]</notextile>') |
| return text |
