Mercurial > p > roundup > code

annotate roundup/cgi/engine_zopetal.py @ 6192:38d04127d9bb

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
pep8 changes
author John Rouillard <rouilj@ieee.org>
date Mon, 08 Jun 2020 20:21:18 -0400
parents 55f09ca366c4
children 808f7a8ed2b6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
1 """Templating engine adapter for the legacy TAL implementation ported from
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
2 Zope.
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
3 """
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
4 __docformat__ = 'restructuredtext'
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
5
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
6 import errno
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
7 import mimetypes
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
8 import os
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
9 import os.path
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
10
4749
0421390b3094 templating: Move common TAL methods to TALLoaderBase class
anatoly techtonik <techtonik@gmail.com>
parents: 4740
diff changeset
11 from roundup.cgi.templating import StringIO, context, translationService, TALLoaderBase
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
12 from roundup.cgi.PageTemplates import PageTemplate, GlobalTranslationService
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
13 from roundup.cgi.PageTemplates.Expressions import getEngine
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
14 from roundup.cgi.TAL import TALInterpreter
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
15
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
16 GlobalTranslationService.setGlobalTranslationService(translationService)
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
17
6192
38d04127d9bb pep8 changes
John Rouillard <rouilj@ieee.org>
parents: 5418
diff changeset
18
4749
0421390b3094 templating: Move common TAL methods to TALLoaderBase class
anatoly techtonik <techtonik@gmail.com>
parents: 4740
diff changeset
19 class Loader(TALLoaderBase):
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
20 templates = {}
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
21
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
22 def __init__(self, dir):
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
23 self.dir = dir
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
24
4740
fe9568a6cbd6 Untangle template selection logic from template loading functionality.
anatoly techtonik <techtonik@gmail.com>
parents: 4739
diff changeset
25 def load(self, tplname):
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
26 # find the source
4749
0421390b3094 templating: Move common TAL methods to TALLoaderBase class
anatoly techtonik <techtonik@gmail.com>
parents: 4740
diff changeset
27 src, filename = self._find(tplname)
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
28
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
29 # has it changed?
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
30 try:
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
31 stime = os.stat(src)[os.path.stat.ST_MTIME]
5248
198b6e810c67 Use Python-3-compatible 'as' syntax for except statements
Eric S. Raymond <esr@thyrsus.com>
parents: 4749
diff changeset
32 except os.error as error:
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
33 if error.errno != errno.ENOENT:
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
34 raise
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
35
5381
0942fe89e82e Python 3 preparation: change "x.has_key(y)" to "y in x".
Joseph Myers <jsm@polyomino.org.uk>
parents: 5378
diff changeset
36 if src in self.templates and \
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
37 stime <= self.templates[src].mtime:
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
38 # compiled template is up to date
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
39 return self.templates[src]
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
40
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
41 # compile the template
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
42 pt = RoundupPageTemplate()
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
43 # use pt_edit so we can pass the content_type guess too
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
44 content_type = mimetypes.guess_type(filename)[0] or 'text/html'
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
45 pt.pt_edit(open(src).read(), content_type)
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
46 pt.id = filename
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
47 pt.mtime = stime
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
48 # Add it to the cache. We cannot do this until the template
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
49 # is fully initialized, as we could otherwise have a race
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
50 # condition when running with multiple threads:
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
51 #
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
52 # 1. Thread A notices the template is not in the cache,
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
53 # adds it, but has not yet set "mtime".
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
54 #
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
55 # 2. Thread B notices the template is in the cache, checks
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
56 # "mtime" (above) and crashes.
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
57 #
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
58 # Since Python dictionary access is atomic, as long as we
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
59 # insert "pt" only after it is fully initialized, we avoid
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
60 # this race condition. It's possible that two separate
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
61 # threads will both do the work of initializing the template,
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
62 # but the risk of wasted work is offset by avoiding a lock.
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
63 self.templates[src] = pt
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
64 return pt
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
65
6192
38d04127d9bb pep8 changes
John Rouillard <rouilj@ieee.org>
parents: 5418
diff changeset
66
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
67 class RoundupPageTemplate(PageTemplate.PageTemplate):
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
68 """A Roundup-specific PageTemplate.
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
69
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
70 Interrogate the client to set up Roundup-specific template variables
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
71 to be available. See 'context' function for the list of variables.
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
72
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
73 """
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
74
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
75 def render(self, client, classname, request, **options):
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
76 """Render this Page Template"""
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
77
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
78 if not self._v_cooked:
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
79 self._cook()
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
80
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
81 __traceback_supplement__ = (PageTemplate.PageTemplateTracebackSupplement, self)
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
82
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
83 if self._v_errors:
6192
38d04127d9bb pep8 changes
John Rouillard <rouilj@ieee.org>
parents: 5418
diff changeset
84 raise PageTemplate.PTRuntimeError('Page Template %s has errors.' %
38d04127d9bb pep8 changes
John Rouillard <rouilj@ieee.org>
parents: 5418
diff changeset
85 self.id)
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
86
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
87 # figure the context
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
88 c = context(client, self, classname, request)
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
89 c.update({'options': options})
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
90
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
91 # and go
5418
55f09ca366c4 Python 3 preparation: StringIO.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5381
diff changeset
92 output = StringIO()
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
93 TALInterpreter.TALInterpreter(self._v_program, self.macros,
6192
38d04127d9bb pep8 changes
John Rouillard <rouilj@ieee.org>
parents: 5418
diff changeset
94 getEngine().getContext(c), output,
38d04127d9bb pep8 changes
John Rouillard <rouilj@ieee.org>
parents: 5418
diff changeset
95 tal=1, strictinsert=0)()
4587
a2eb4fb3e6d8 New Chameleon templating engine, engine is now configurable.
Ralf Schlatterbeck <rsc@runtux.com>
parents:
diff changeset
96 return output.getvalue()
Roundup Issue Tracker: http://roundup-tracker.org/