def on_pre_composition(self, director):
if not self._config.parser.has_section('open_graph'):
raise AbortError(
_('An open_graph section is missing in the configuration file.'
))
if not self._config.parser.has_option('open_graph', 'default_image'):
raise AbortError(
_('A default image URL is missing in the configuration file.'))
self._resolver = director.resolver
self._url_resolver = URLResolver(
self._config, self._config.parser.get('open_graph',
'default_image'))
def on_pre_composition(self, director):
if not self._config.parser.has_section('twitter'):
raise AbortError(
_('An twitter section is missing in the configuration file.'))
if not self._config.parser.has_option('twitter', 'default_image'):
raise AbortError(
_('A default image URL is missing in the configuration file.'))
if not self._config.parser.has_option('twitter', 'site_username'):
raise AbortError(
_('A site username is missing in the configuration file.'))
self._resolver = director.resolver
self._url_resolver = URLResolver(
self._config, self._config.parser.get('twitter', 'default_image'))
self._site = self._config.parser.get('twitter', 'site_username')
class TwitterExtension(Extension):
"""Inject Twitter metadata into the template context."""
handle_frontmatter_loaded = True
handle_pre_composition = True
def on_pre_composition(self, director):
if not self._config.parser.has_section('twitter'):
raise AbortError(_(
'An twitter section is missing in the configuration file.'))
if not self._config.parser.has_option('twitter', 'default_image'):
raise AbortError(_(
'A default image URL is missing in the configuration file.'))
if not self._config.parser.has_option('twitter', 'site_username'):
raise AbortError(_(
'A site username is missing in the configuration file.'))
self._resolver = director.resolver
self._url_resolver = URLResolver(
self._config,
self._config.parser.get('twitter', 'default_image'))
self._site = self._config.parser.get('twitter', 'site_username')
def on_frontmatter_loaded(self, source_file, frontmatter):
if frontmatter.get('blog'):
self.add_metadata(source_file, frontmatter)
else:
frontmatter['twitter_metadata'] = ''
def add_metadata(self, source_file, frontmatter):
metadata = [
'<meta name="twitter:card" content="summary" />',
'<meta name="twitter:site" content="{}" />'.format(self._site),
]
url = self._resolver.as_url(source_file)
image = self._url_resolver.resolve(url, frontmatter.get('image'))
metadata.append(
u'<meta name="twitter:image" content="{}" />'.format(image))
title = frontmatter.get('title', '')
title = title.replace('"', '\'')
metadata.append(
u'<meta name="twitter:title" content="{}" />'.format(title))
if frontmatter.get('summary'):
summary = frontmatter.get('summary', '')
summary = summary.replace('"', '\'')
metadata.append(
u'<meta name="twitter:description" content="{}" />'.format(
summary))
frontmatter['twitter_metadata'] = '\n'.join(metadata)
class TwitterExtension(Extension):
"""Inject Twitter metadata into the template context."""
handle_frontmatter_loaded = True
handle_pre_composition = True
def on_pre_composition(self, director):
if not self._config.parser.has_section('twitter'):
raise AbortError(
_('An twitter section is missing in the configuration file.'))
if not self._config.parser.has_option('twitter', 'default_image'):
raise AbortError(
_('A default image URL is missing in the configuration file.'))
if not self._config.parser.has_option('twitter', 'site_username'):
raise AbortError(
_('A site username is missing in the configuration file.'))
self._resolver = director.resolver
self._url_resolver = URLResolver(
self._config, self._config.parser.get('twitter', 'default_image'))
self._site = self._config.parser.get('twitter', 'site_username')
def on_frontmatter_loaded(self, source_file, frontmatter):
if frontmatter.get('blog'):
self.add_metadata(source_file, frontmatter)
else:
frontmatter['twitter_metadata'] = ''
def add_metadata(self, source_file, frontmatter):
metadata = [
'<meta name="twitter:card" content="summary" />',
'<meta name="twitter:site" content="{}" />'.format(self._site),
]
url = self._resolver.as_url(source_file)
image = self._url_resolver.resolve(url, frontmatter.get('image'))
metadata.append(
u'<meta name="twitter:image" content="{}" />'.format(image))
title = frontmatter.get('title', '')
title = title.replace('"', '\'')
metadata.append(
u'<meta name="twitter:title" content="{}" />'.format(title))
if frontmatter.get('summary'):
summary = frontmatter.get('summary', '')
summary = summary.replace('"', '\'')
metadata.append(
u'<meta name="twitter:description" content="{}" />'.format(
summary))
frontmatter['twitter_metadata'] = '\n'.join(metadata)
def on_pre_composition(self, director):
if not self._config.parser.has_section('open_graph'):
raise AbortError(_(
'An open_graph section is missing in the configuration file.'))
if not self._config.parser.has_option('open_graph', 'default_image'):
raise AbortError(_(
'A default image URL is missing in the configuration file.'))
self._resolver = director.resolver
self._url_resolver = URLResolver(
self._config,
self._config.parser.get('open_graph', 'default_image'))
class OpenGraphExtension(Extension):
"""Inject Open Graph metadata into the template context."""
handle_frontmatter_loaded = True
handle_pre_composition = True
def on_pre_composition(self, director):
if not self._config.parser.has_section('open_graph'):
raise AbortError(
_('An open_graph section is missing in the configuration file.'
))
if not self._config.parser.has_option('open_graph', 'default_image'):
raise AbortError(
_('A default image URL is missing in the configuration file.'))
self._resolver = director.resolver
self._url_resolver = URLResolver(
self._config, self._config.parser.get('open_graph',
'default_image'))
def on_frontmatter_loaded(self, source_file, frontmatter):
if frontmatter.get('blog'):
self.add_blog_metadata(source_file, frontmatter)
else:
frontmatter['open_graph_metadata'] = ''
def add_blog_metadata(self, source_file, frontmatter):
url = self._resolver.as_url(source_file)
metadata = [
'<meta property="og:type" content="article" />',
'<meta property="og:url" content="{}" />'.format(url),
]
image = self._url_resolver.resolve(url, frontmatter.get('image'))
metadata.append(
u'<meta property="og:image" content="{}" />'.format(image))
title = frontmatter.get('title', '')
title = title.replace('"', '\'')
metadata.append(
u'<meta property="og:title" content="{}" />'.format(title))
if frontmatter.get('summary'):
summary = frontmatter.get('summary', '')
summary = summary.replace('"', '\'')
metadata.append(
u'<meta property="og:description" content="{}" />'.format(
summary))
frontmatter['open_graph_metadata'] = '\n'.join(metadata)
class OpenGraphExtension(Extension):
"""Inject Open Graph metadata into the template context."""
handle_frontmatter_loaded = True
handle_pre_composition = True
def on_pre_composition(self, director):
if not self._config.parser.has_section('open_graph'):
raise AbortError(_(
'An open_graph section is missing in the configuration file.'))
if not self._config.parser.has_option('open_graph', 'default_image'):
raise AbortError(_(
'A default image URL is missing in the configuration file.'))
self._resolver = director.resolver
self._url_resolver = URLResolver(
self._config,
self._config.parser.get('open_graph', 'default_image'))
def on_frontmatter_loaded(self, source_file, frontmatter):
if frontmatter.get('blog'):
self.add_blog_metadata(source_file, frontmatter)
else:
frontmatter['open_graph_metadata'] = ''
def add_blog_metadata(self, source_file, frontmatter):
url = self._resolver.as_url(source_file)
metadata = [
'<meta property="og:type" content="article" />',
'<meta property="og:url" content="{}" />'.format(url),
]
image = self._url_resolver.resolve(url, frontmatter.get('image'))
metadata.append(
u'<meta property="og:image" content="{}" />'.format(image))
title = frontmatter.get('title', '')
title = title.replace('"', '\'')
metadata.append(
u'<meta property="og:title" content="{}" />'.format(title))
if frontmatter.get('summary'):
summary = frontmatter.get('summary', '')
summary = summary.replace('"', '\'')
metadata.append(
u'<meta property="og:description" content="{}" />'.format(
summary))
frontmatter['open_graph_metadata'] = '\n'.join(metadata)
def on_pre_composition(self, director):
if not self._config.parser.has_section('twitter'):
raise AbortError(_(
'An twitter section is missing in the configuration file.'))
if not self._config.parser.has_option('twitter', 'default_image'):
raise AbortError(_(
'A default image URL is missing in the configuration file.'))
if not self._config.parser.has_option('twitter', 'site_username'):
raise AbortError(_(
'A site username is missing in the configuration file.'))
self._resolver = director.resolver
self._url_resolver = URLResolver(
self._config,
self._config.parser.get('twitter', 'default_image'))
self._site = self._config.parser.get('twitter', 'site_username')
def test_use_default(self):
config = self.factory.make_configuration()
resolver = URLResolver(config, 'https://www.example.com/default.png')
url = resolver.resolve('', '')
self.assertEqual('https://www.example.com/default.png', url)
def test_use_absolute_image(self):
config = self.factory.make_configuration()
base_url = 'https://www.example.com/route/default.png'
resolver = URLResolver(config, '')
url = resolver.resolve(base_url, '/images/javascript.png')
self.assertEqual('http://www.example.com/images/javascript.png', url)
def test_use_relative_image(self):
config = self.factory.make_configuration()
base_url = 'https://www.example.com/route/default.png'
resolver = URLResolver(config, '')
url = resolver.resolve(base_url, 'python.png')
self.assertEqual('https://www.example.com/route/python.png', url)
def test_use_default(self):
config = self.factory.make_configuration()
resolver = URLResolver(config, 'https://www.example.com/default.png')
url = resolver.resolve('', '')
self.assertEqual('https://www.example.com/default.png', url)
def test_use_absolute_image(self):
config = self.factory.make_configuration()
base_url = 'https://www.example.com/route/default.png'
resolver = URLResolver(config, '')
url = resolver.resolve(base_url, '/images/javascript.png')
self.assertEqual('http://www.example.com/images/javascript.png', url)
def test_use_relative_image(self):
config = self.factory.make_configuration()
base_url = 'https://www.example.com/route/default.png'
resolver = URLResolver(config, '')
url = resolver.resolve(base_url, 'python.png')
self.assertEqual('https://www.example.com/route/python.png', url)