]>
git.ipfire.org Git - ipfire.org.git/blob - src/backend/wiki.py
12 from .decorators
import *
15 "google" : ("https://www.google.com/search?q=%(url)s", None, "fab fa-google"),
16 "rfc" : ("https://tools.ietf.org/html/rfc%(name)s", "RFC %s", None),
17 "wp" : ("https://en.wikipedia.org/wiki/%(name)s", None, "fab fa-wikipedia-w"),
20 class Wiki(misc
.Object
):
21 def _get_pages(self
, query
, *args
):
22 res
= self
.db
.query(query
, *args
)
25 yield Page(self
.backend
, row
.id, data
=row
)
27 def _get_page(self
, query
, *args
):
28 res
= self
.db
.get(query
, *args
)
31 return Page(self
.backend
, res
.id, data
=res
)
33 def get_page_title(self
, page
, default
=None):
34 # Try to retrieve title from cache
35 title
= self
.memcache
.get("wiki:title:%s" % page
)
39 # If the title has not been in the cache, we will
41 doc
= self
.get_page(page
)
45 title
= os
.path
.basename(page
)
47 # Save in cache for forever
48 self
.memcache
.set("wiki:title:%s" % page
, title
)
52 def get_page(self
, page
, revision
=None):
53 page
= Page
.sanitise_page_name(page
)
57 return self
._get
_page
("SELECT * FROM wiki WHERE page = %s \
58 AND timestamp = %s", page
, revision
)
60 return self
._get
_page
("SELECT * FROM wiki WHERE page = %s \
61 ORDER BY timestamp DESC LIMIT 1", page
)
63 def get_recent_changes(self
, account
, limit
=None):
64 pages
= self
._get
_pages
("SELECT * FROM wiki \
65 WHERE timestamp >= NOW() - INTERVAL '4 weeks' \
66 ORDER BY timestamp DESC")
69 if not page
.check_acl(account
):
78 def create_page(self
, page
, author
, content
, changes
=None, address
=None):
79 page
= Page
.sanitise_page_name(page
)
81 # Write page to the database
82 page
= self
._get
_page
("INSERT INTO wiki(page, author_uid, markdown, changes, address) \
83 VALUES(%s, %s, %s, %s, %s) RETURNING *", page
, author
.uid
, content
or None, changes
, address
)
86 self
.memcache
.set("wiki:title:%s" % page
.page
, page
.title
)
88 # Send email to all watchers
89 page
._send
_watcher
_emails
(excludes
=[author
])
93 def delete_page(self
, page
, author
, **kwargs
):
94 # Do nothing if the page does not exist
95 if not self
.get_page(page
):
98 # Just creates a blank last version of the page
99 self
.create_page(page
, author
=author
, content
=None, **kwargs
)
101 def make_breadcrumbs(self
, url
):
102 # Split and strip all empty elements (double slashes)
103 parts
= list(e
for e
in url
.split("/") if e
)
106 for part
in ("/".join(parts
[:i
]) for i
in range(1, len(parts
))):
107 ret
.append(("/%s" % part
, self
.get_page_title(part
, os
.path
.basename(part
))))
111 def search(self
, query
, account
=None, limit
=None):
112 query
= util
.parse_search_query(query
)
114 res
= self
._get
_pages
("SELECT wiki.* FROM wiki_search_index search_index \
115 LEFT JOIN wiki ON search_index.wiki_id = wiki.id \
116 WHERE search_index.document @@ to_tsquery('english', %s) \
117 ORDER BY ts_rank(search_index.document, to_tsquery('english', %s)) DESC",
122 # Skip any pages the user doesn't have permission for
123 if not page
.check_acl(account
):
126 # Return any other pages
129 # Break when we have found enough pages
130 if limit
and len(pages
) >= limit
:
137 Needs to be called after a page has been changed
139 self
.db
.execute("REFRESH MATERIALIZED VIEW wiki_search_index")
143 def check_acl(self
, page
, account
):
144 res
= self
.db
.query("SELECT * FROM wiki_acls \
145 WHERE %s ILIKE (path || '%%') ORDER BY LENGTH(path) DESC LIMIT 1", page
)
148 # Access not permitted when user is not logged in
152 # If user is in a matching group, we grant permission
153 for group
in row
.groups
:
154 if group
in account
.groups
:
157 # Otherwise access is not permitted
160 # If no ACLs are found, we permit access
165 def _get_files(self
, query
, *args
):
166 res
= self
.db
.query(query
, *args
)
169 yield File(self
.backend
, row
.id, data
=row
)
171 def _get_file(self
, query
, *args
):
172 res
= self
.db
.get(query
, *args
)
175 return File(self
.backend
, res
.id, data
=res
)
177 def get_files(self
, path
):
178 files
= self
._get
_files
("SELECT * FROM wiki_files \
179 WHERE path = %s AND deleted_at IS NULL ORDER BY filename", path
)
183 def get_file_by_path(self
, path
):
184 path
, filename
= os
.path
.dirname(path
), os
.path
.basename(path
)
186 return self
._get
_file
("SELECT * FROM wiki_files \
187 WHERE path = %s AND filename = %s AND deleted_at IS NULL", path
, filename
)
189 def upload(self
, path
, filename
, data
, mimetype
, author
, address
):
190 # Upload the blob first
191 blob
= self
.db
.get("INSERT INTO wiki_blobs(data) VALUES(%s) RETURNING id", data
)
193 # Create entry for file
194 return self
._get
_file
("INSERT INTO wiki_files(path, filename, author_uid, address, \
195 mimetype, blob_id, size) VALUES(%s, %s, %s, %s, %s, %s, %s) RETURNING *", path
,
196 filename
, author
.uid
, address
, mimetype
, blob
.id, len(data
))
198 def find_image(self
, path
, filename
):
199 for p
in (path
, os
.path
.dirname(path
)):
200 file = self
.get_file_by_path(os
.path
.join(p
, filename
))
202 if file and file.is_image():
206 class Page(misc
.Object
):
208 external_link
= re
.compile(r
"\[\[((?:ftp|git|https?|rsync|sftp|ssh|webcal)\:\/\/.+?)(?:\|(.+?))\]\]")
210 # Interwiki links e.g. [[wp>IPFire]]
211 interwiki_link
= re
.compile(r
"\[\[(\w+)>(.+?)(?:\|(.+?))?\]\]")
213 def init(self
, id, data
=None):
218 return "<%s %s %s>" % (self
.__class
__.__name
__, self
.page
, self
.timestamp
)
220 def __eq__(self
, other
):
221 if isinstance(other
, self
.__class
__):
222 return self
.id == other
.id
224 def __lt__(self
, other
):
225 if isinstance(other
, self
.__class
__):
226 if self
.page
== other
.page
:
227 return self
.timestamp
< other
.timestamp
229 return self
.page
< other
.page
232 def sanitise_page_name(page
):
236 # Make sure that the page name does NOT end with a /
237 if page
.endswith("/"):
240 # Make sure the page name starts with a /
241 if not page
.startswith("/"):
244 # Remove any double slashes
245 page
= page
.replace("//", "/")
255 return "https://wiki.ipfire.org%s" % self
.url
259 return self
.data
.page
263 return self
._title
or os
.path
.basename(self
.page
[1:])
267 if not self
.markdown
:
270 # Find first H1 headline in markdown
271 markdown
= self
.markdown
.splitlines()
273 m
= re
.match(r
"^# (.*)( #)?$", markdown
[0])
279 if self
.data
.author_uid
:
280 return self
.backend
.accounts
.get_by_uid(self
.data
.author_uid
)
282 def _render_external_link(self
, m
):
283 url
, alias
= m
.groups()
285 return """<a class="link-external" href="%s">%s</a>""" % (url
, alias
or url
)
287 def _render_interwiki_link(self
, m
):
294 url
, repl
, icon
= INTERWIKIS
[wiki
]
296 logging
.warning("Invalid interwiki: %s" % wiki
)
305 "url" : urllib
.parse
.quote(name
),
308 # Get alias (if present)
311 if not alias
and repl
:
314 # Put everything together
318 s
.append("<span class=\"%s\"></span>" % icon
)
320 s
.append("""<a class="link-external" href="%s">%s</a>""" % (url
, alias
or name
))
324 def _render(self
, text
):
325 logging
.debug("Rendering %s" % self
)
329 for match
in re
.finditer(r
"!\[(.*?)\]\((.*?)\)", text
):
330 alt_text
, url
= match
.groups()
332 # Skip any absolute and external URLs
333 if url
.startswith("/") or url
.startswith("https://") or url
.startswith("http://"):
336 # Try to split query string
337 url
, delimiter
, qs
= url
.partition("?")
339 # Parse query arguments
340 args
= urllib
.parse
.parse_qs(qs
)
343 file = self
.backend
.wiki
.find_image(self
.page
, url
)
347 # Scale down the image if not already done
352 url
= "%s?%s" % (file.url
, urllib
.parse
.urlencode(args
))
354 replacements
.append((match
.span(), file, alt_text
, url
))
356 # Apply all replacements
357 for (start
, end
), file, alt_text
, url
in reversed(replacements
):
358 text
= text
[:start
] + "[![%s](%s)](%s?action=detail)" % (alt_text
, url
, file.url
) + text
[end
:]
360 # Handle interwiki links
361 text
= self
.interwiki_link
.sub(self
._render
_interwiki
_link
, text
)
363 # Handle external links
364 text
= self
.external_link
.sub(self
._render
_external
_link
, text
)
368 (r
"\[\[([\w\d\/\-\.]+)(?:\|(.+?))\]\]", r
"\1", r
"\2", None, True),
369 (r
"\[\[([\w\d\/\-\.]+)\]\]", r
"\1", r
"\1", self
.backend
.wiki
.get_page_title
, True),
372 (r
"\[\[([a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+)\]\]",
373 r
"\1", r
"\1", None, False),
376 for pattern
, link
, title
, repl
, internal
in patterns
:
379 for match
in re
.finditer(pattern
, text
):
380 l
= match
.expand(link
)
381 t
= match
.expand(title
)
384 # Allow relative links
385 if not l
.startswith("/"):
386 l
= os
.path
.join(self
.page
, l
)
389 l
= os
.path
.normpath(l
)
394 replacements
.append((match
.span(), t
or l
, l
))
396 # Apply all replacements
397 for (start
, end
), t
, l
in reversed(replacements
):
398 text
= text
[:start
] + "[%s](%s)" % (t
, l
) + text
[end
:]
400 # Borrow this from the blog
401 return self
.backend
.blog
._render
_text
(text
, lang
="markdown")
405 return self
.data
.markdown
or ""
409 return self
._render
(self
.markdown
)
413 return self
.data
.timestamp
415 def was_deleted(self
):
416 return self
.markdown
is None
419 def breadcrumbs(self
):
420 return self
.backend
.wiki
.make_breadcrumbs(self
.page
)
422 def get_latest_revision(self
):
423 revisions
= self
.get_revisions()
425 # Return first object
426 for rev
in revisions
:
429 def get_revisions(self
):
430 return self
.backend
.wiki
._get
_pages
("SELECT * FROM wiki \
431 WHERE page = %s ORDER BY timestamp DESC", self
.page
)
434 def previous_revision(self
):
435 return self
.backend
.wiki
._get
_page
("SELECT * FROM wiki \
436 WHERE page = %s AND timestamp < %s ORDER BY timestamp DESC \
437 LIMIT 1", self
.page
, self
.timestamp
)
441 return self
.data
.changes
445 def check_acl(self
, account
):
446 return self
.backend
.wiki
.check_acl(self
.page
, account
)
452 parts
= self
.page
.split("/")
455 sidebar
= self
.backend
.wiki
.get_page("%s/sidebar" % os
.path
.join(*parts
))
465 if self
.previous_revision
:
466 diff
= difflib
.unified_diff(
467 self
.previous_revision
.markdown
.splitlines(),
468 self
.markdown
.splitlines(),
471 return "\n".join(diff
)
475 res
= self
.db
.query("SELECT uid FROM wiki_watchlist \
476 WHERE page = %s", self
.page
)
479 # Search for account by UID and skip if none was found
480 account
= self
.backend
.accounts
.get_by_uid(row
.uid
)
487 def is_watched_by(self
, account
):
488 res
= self
.db
.get("SELECT 1 FROM wiki_watchlist \
489 WHERE page = %s AND uid = %s", self
.page
, account
.uid
)
496 def add_watcher(self
, account
):
497 if self
.is_watched_by(account
):
500 self
.db
.execute("INSERT INTO wiki_watchlist(page, uid) \
501 VALUES(%s, %s)", self
.page
, account
.uid
)
503 def remove_watcher(self
, account
):
504 self
.db
.execute("DELETE FROM wiki_watchlist \
505 WHERE page = %s AND uid = %s", self
.page
, account
.uid
)
507 def _send_watcher_emails(self
, excludes
=[]):
508 # Nothing to do if there was no previous revision
509 if not self
.previous_revision
:
512 for watcher
in self
.watchers
:
513 # Skip everyone who is excluded
514 if watcher
in excludes
:
515 logging
.debug("Excluding %s" % watcher
)
518 logging
.debug("Sending watcher email to %s" % watcher
)
521 self
.backend
.messages
.send_template("wiki/messages/page-changed",
522 recipients
=[watcher
], page
=self
, priority
=-10)
525 class File(misc
.Object
):
526 def init(self
, id, data
):
532 return os
.path
.join(self
.path
, self
.filename
)
536 return self
.data
.path
540 return self
.data
.filename
544 return self
.data
.mimetype
548 return self
.data
.size
552 if self
.data
.author_uid
:
553 return self
.backend
.accounts
.get_by_uid(self
.data
.author_uid
)
556 def created_at(self
):
557 return self
.data
.created_at
560 return self
.mimetype
in ("application/pdf", "application/x-pdf")
563 return self
.mimetype
.startswith("image/")
567 res
= self
.db
.get("SELECT data FROM wiki_blobs \
568 WHERE id = %s", self
.data
.blob_id
)
571 return bytes(res
.data
)
573 def get_thumbnail(self
, size
):
574 cache_key
= "-".join((self
.path
, util
.normalize(self
.filename
), self
.created_at
.isoformat(), "%spx" % size
))
576 # Try to fetch the data from the cache
577 thumbnail
= self
.memcache
.get(cache_key
)
581 # Generate the thumbnail
582 thumbnail
= util
.generate_thumbnail(self
.blob
, size
)
584 # Put it into the cache for forever
585 self
.memcache
.set(cache_key
, thumbnail
)