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run.py
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run.py
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# coding=utf-8
import os
import codecs
from datetime import datetime
from json import dumps
from flask import Flask, Markup, request
from werkzeug.utils import secure_filename
from flask_mako import render_template, MakoTemplates, render_template_def
from flask_sqlalchemy import SQLAlchemy
from sqlalchemy import distinct, func
import mistune
app = Flask(__name__)
mako = MakoTemplates(app)
app.config.from_object('config')
db = SQLAlchemy(app)
BOOK_DIR = app.config['BOOK_DIR']
markdown = None
if BOOK_DIR is None:
print 'You must specify `BOOK` in local_settings.py'
exit(1)
def get_summary_content():
path = os.path.join(BOOK_DIR, 'SUMMARY.md')
if os.path.exists(path):
with codecs.open(path, 'r', 'utf-8') as f:
content = f.read()
else:
content = ('Aiglos uses a SUMMARY.md file to define the structure '
'of chapters and subchapters of the book. See '
'https://help.gitbook.com/format/chapters.html '
'for more details.')
return Markup(markdown(content))
class Comments(db.Model):
id = db.Column(db.Integer, primary_key=True)
content = db.Column(db.String(10000))
nodenum = db.Column(db.Integer)
chapter = db.Column(db.String(100))
section = db.Column(db.String(100))
pub_date = db.Column(db.DateTime)
def __init__(self, chapter, section, nodenum, content, pub_date=None):
self.chapter = chapter
self.section = section
self.nodenum = nodenum
self.content = content
if pub_date is None:
pub_date = datetime.utcnow()
self.pub_date = pub_date
def __repr__(self):
return '<Comment {} [{} {} {}]>'.format(self.id, self.chapter,
self.section, self.nodenum)
db.create_all()
class Renderer(mistune.Renderer):
def __init__(self, **kwargs):
super(Renderer, self).__init__(**kwargs)
self.c = 0
self.cn = 0
def header(self, text, level, raw=None):
res = '<h%d class="cn title" id="cn%s">%s</h%d>\n' % (
level, self.cn, text, level)
self.cn += 1
return res
def paragraph(self, text):
res = '<p class="cn" id="cn%s">%s</p>\n' % (
self.cn, text.strip(' '))
self.cn += 1
return res
def block_code(self, code, lang=None):
code = code.rstrip('\n')
code = mistune.escape(code, smart_amp=False)
res = '<pre class="cn literal-block" id="cn%s">%s\n</pre>\n' % (
self.cn, code)
self.cn += 1
return res
def list_item(self, text):
res = '<li class="cn" id="cn%s"><p class="first cn" id="cn%s">%s</li>\n' % ( # noqa
self.cn, self.cn, text)
self.cn += 1
return res
@app.before_request
def before_request():
renderer = Renderer()
global markdown
markdown = mistune.Markdown(renderer=renderer)
def patch_comments(comments):
for comment in comments:
comment.content = Markup(markdown(comment.content))
yield comment
@app.route('/')
def index():
content = get_summary_content()
return render_template('index.html', content=content)
@app.route('/<chapter>/<section>/')
def section(chapter, section):
chapter = secure_filename(chapter)
section = secure_filename(section)
path = os.path.join(BOOK_DIR, chapter, section)
with codecs.open(path, 'r', 'utf-8') as f:
content = f.read()
content = Markup(markdown(content))
return render_template('page.html', **locals())
@app.route('/<chapter>/<section>/comments/<comment_id>/')
@app.route('/<chapter>/<section>/comments/', methods=['GET', 'POST'])
def comment(chapter, section, comment_id=None):
if comment_id is None and request.method == 'POST':
nodenum = request.form.get('nodenum')
comment = request.form.get('comment')
if not (nodenum and comment) or not nodenum.isdigit():
return 'Wrong!'
nodenum = int(nodenum)
c = Comments(chapter, section, nodenum, comment)
db.session.add(c)
db.session.commit()
return '<li></li>'
cond = {'chapter': chapter, 'section': section}
if comment_id is not None:
cond.update({'nodenum': comment_id})
comments = Comments.query.filter_by(**cond).order_by(Comments.id.desc())
comments = patch_comments(comments)
return render_template_def('comment.html', 'main', comments=comments)
@app.route('/<chapter>/<section>/comments/counts/')
def counts(chapter, section):
counts = db.session.query(Comments.nodenum, func.count(
distinct(Comments.id))).filter_by(
chapter=chapter, section=section).group_by(
Comments.nodenum).all()
return dumps(counts)
if __name__ == '__main__':
app.run(host=app.config['HOST'], port=app.config['PORT'], debug=app.debug)