agora-server/app/agora.py

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# Copyright 2020 Google LLC
#
# Licensed 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 datetime
from flask import Blueprint, url_for, render_template, current_app, Response, redirect
from markupsafe import escape
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from . import config
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from . import db
from . import forms
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bp = Blueprint('agora', __name__)
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@bp.route('/index')
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@bp.route('/')
def index():
return render_template('index.html', version=config.AGORA_VERSION, help=url_for('agora.help'), nodes=url_for('agora.nodes'), subnodes=url_for('agora.subnodes'), users=url_for('agora.users'), journals=url_for('agora.journals'), search=url_for('agora.search'), latest=url_for('agora.latest'))
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@bp.route('/help')
def help():
current_app.logger.warning('Not implemented.')
return 'If I had implemented help already, here you\'d see documentation on all URL endpoints. For now, please refer to the <a href="https://flancia.org/go/agora">code</a>.'
@bp.route('/nodes')
def nodes():
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return render_template('nodes.html', nodes=db.all_nodes(include_journals=False))
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@bp.route('/notes') # alias
@bp.route('/subnodes')
def subnodes():
return render_template('subnodes.html', subnodes=db.all_subnodes())
@bp.route('/latest')
def latest():
return render_template('subnodes.html', header="Latest", subnodes=db.latest())
@bp.route('/users')
def users():
return render_template('users.html', users=db.all_users())
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@bp.route('/journals')
def journals():
return render_template('nodes.html', header="Journals", nodes=db.all_journals())
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@bp.route('/today')
def today():
today = datetime.datetime.now().date()
return redirect("https://anagora.org/node/%s" % today.strftime("%Y-%m-%d"))
@bp.route('/go/<node>')
def go(node):
"""Redirects to the URL in the given node in a block that starts with [[go]], if there is one."""
# TODO(flancian): all node-scoped stuff should move to actually use node objects.
try:
n = db.nodes_by_wikilink(node)
except KeyError:
return redirect("https://anagora.org/node/%s" % node)
if len(n) > 1:
current_app.logger.warning('nodes_by_wikilink returned more than one node, should not happen.')
if len(n) == 0:
# No nodes with this name -- redirect to node 404.
return redirect("https://anagora.org/node/%s" % node)
links = n[0].go()
if len(links) == 0:
# No go links detected in this node -- just redirect to the node.
# TODO(flancian): flash an explanation :)
return redirect("https://anagora.org/node/%s" % node)
if len(links) > 1:
# TODO(flancian): to be implemented.
# Likely default to one of the links, show all of them but redirect to default within n seconds.
current_app.logger.warning('Code to manage nodes with more than one go link is not Not implemented.')
return redirect(links[0])
@bp.route('/u/<user>')
@bp.route('/user/<user>')
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@bp.route('/@<user>')
def user(user):
return render_template('user.html', user=user, readmes=db.user_readmes(user), subnodes=db.subnodes_by_user(user))
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@bp.route('/garden/<garden>')
def garden(garden):
current_app.logger.warning('Not implemented.')
return 'If I had implemented rendering gardens already, here you would see garden named "%s".' % escape(garden)
@bp.route('/node/<node>')
@bp.route('/wikilink/<node>') # alias for now
def wikilink(node):
return render_template('node_rendered.html', wikilink=node, subnodes=db.subnodes_by_wikilink(node), backlinks=db.subnodes_by_outlink(node))
@bp.route('/subnode/<path:subnode>')
def subnode(subnode):
return render_template('subnode_rendered.html', subnode=db.subnode_by_uri(subnode), backlinks=db.subnodes_by_outlink(subnode))
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# Searching with GET: potentially useful but probably not a good idea.
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# @bp.route('/search/<query>')
# def search(query):
# return render_template('subnodes.html', subnodes=db.search_subnodes(query))
@bp.route('/search', methods=('GET', 'POST'))
def search():
form = forms.SearchForm()
if form.validate_on_submit():
return render_template('search.html', form=form, subnodes=db.search_subnodes(form.query.data))
return render_template('search.html', form=form)
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@bp.route('/asset/<user>/<asset>')
def asset(user, asset):
# An asset is a binary in someone's garden/<user>/assets directory.
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# Currently unused.
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path = '/'.join(["garden", user, 'assets', asset])
return current_app.send_static_file(path)
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@bp.route('/raw/<node>')
def raw(node):
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# Currently unused.
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# hack hack
# outlinks
return Response("\n\n".join([str(n.outlinks) for n in db.nodes_by_wikilink(node)]), mimetype="text/plain")
# content
# return Response("\n\n".join([n.content for n in db.nodes_by_wikilink(node)]), mimetype="text/plain")
@bp.route('/backlinks/<node>')
def backlinks(node):
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# Currently unused.
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return render_template('nodes.html', nodes=db.nodes_by_outlink(node))