89 lines
3.0 KiB
Python
89 lines
3.0 KiB
Python
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from flask import g, request, url_for
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from i2p2www import CANONICAL_DOMAIN, app
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I2P_TO_CLEAR = {
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'www.i2p2.i2p': 'www.i2p2.de',
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#'forum.i2p': 'forum.i2p2.de',
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'trac.i2p2.i2p': 'trac.i2p2.de',
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'mail.i2p': 'i2pmail.org',
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}
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####################
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# Template functions
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@app.context_processor
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def utility_processor():
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# Shorthand for getting a site url
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def get_site_url(path=None):
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lang = 'en'
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if hasattr(g, 'lang') and g.lang:
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lang = g.lang
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if path:
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return url_for('site_show', lang=lang, page=path)
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else:
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return url_for('site_show', lang=lang)
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# Shorthand for getting a language-specific url
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def get_url_with_lang(endpoint, **args):
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lang = 'en'
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if hasattr(g, 'lang') and g.lang:
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lang = g.lang
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return url_for(endpoint, lang=lang, **args)
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# Get a specific language flag, or the flag for the current language
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def get_flag(lang=None):
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if not lang:
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if hasattr(g, 'lang') and g.lang:
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lang = g.lang
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else:
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lang = 'en'
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return url_for('static', filename='images/flags/'+lang+'.png')
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# Provide the canonical link to the current page
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def get_canonical_link():
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protocol = request.url.split('//')[0]
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return protocol + '//' + CANONICAL_DOMAIN + request.path
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# Convert an I2P url to an equivalent clearnet one
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def convert_url_to_clearnet(value):
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if not value.endswith('.i2p'):
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# The url being passed in isn't an I2P url, so just return it
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return value
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if request.headers.get('X-I2P-Desthash') and not request.headers.get('X-Forwarded-Server'):
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# The request is from within I2P, so use I2P url
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return value
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# The request is either directly from clearnet or through an inproxy
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try:
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# Return the known clearnet url corresponding to the I2P url
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return I2P_TO_CLEAR[value]
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except KeyError:
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# The I2P site has no known clearnet address, so use an inproxy
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return value + '.to'
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# Convert a paginated URL to that of another page
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def url_for_other_page(page):
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args = request.view_args.copy()
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args['page'] = page
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return url_for(request.endpoint, **args)
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# Change the theme of the current page
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def change_theme(theme):
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args = {}
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if request.view_args:
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args = request.view_args.copy()
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args['theme'] = theme
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if request.endpoint:
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return url_for(request.endpoint, **args)
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# Probably a 404 error page
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return url_for('main_index', **args)
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return dict(i2pconv=convert_url_to_clearnet,
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url_for_other_page=url_for_other_page,
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change_theme=change_theme,
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site_url=get_site_url,
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get_url=get_url_with_lang,
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get_flag=get_flag,
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canonical=get_canonical_link)
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