eskp-app/1.0: eskp.py@a4f39dc4db6a

     1 # -*- coding: utf-8 -*-

     2 import logging

     4 import os

     5 import codecs

     6 import vobject

     7 import StringIO

     9 import qrcode

    11 from docutils.core import publish_parts

    12 from flask import Flask

    13 from flask import render_template

    14 from flask import request

    15 from flask.ext.babel import gettext as _

    16 from flask.ext.babel import Babel

    17 from config import LANGUAGES

    19 import base64

    21 LANGUAGE_SELECTED = "de"

    22 # ToDo after engelish is implemented set LANGUAGE_SELECTED = None

    24 # We need the path of this file to find templates to translate

    25 ESKP_PATH = os.path.dirname(os.path.abspath(__file__))

    26 logging.basicConfig(filename=os.path.join(ESKP_PATH, 'eskp-app.log'), level=logging.DEBUG)

    27 FILES= os.listdir(os.path.join(ESKP_PATH, 'static/images/uvmap'))

    29 app = Flask(__name__)

    30 babel = Babel(app)

    32 app.config['BABEL_DEFAULT_LOCALE'] = 'de'

    35 def get_vcard(filename):

    36     filename = os.path.join(ESKP_PATH, filename)

    37     with codecs.open(filename, 'r', 'utf-8') as f:

    38         vcard = f.read()

    39     return vobject.readOne(vcard)

    42 def get_content(filename, overrides=None):

    43     content = u""

    44     filename = os.path.join(ESKP_PATH, filename)

    45     if os.path.isfile(filename):

    46         with codecs.open(filename, 'r', 'utf-8') as f:

    47             rst_data = f.read()

    48         content = publish_parts(rst_data, writer_name='html', settings_overrides=overrides)['html_body']

    49     return content

    52 def get_newest_date():

    53     getdates = get_valid_dates(FILES)

    54     newest_date = getdates[-1]

    56     return newest_date

    59 def get_topmenue():

    60     newest_date = get_newest_date()

    61     menue = [

    62         ('/ozoneloss', _(u'Ozoneloss'),

    63          (('/ozoneloss', _(u'overview')),

    64           ('/ozoneloss/clams/2016', _(u'calculations')),

    65           ('/ozoneloss/vpsc/2016', _(u'estimations')),

    66           ('/ozoneloss/uvi', _(u'uv increase')),

    67           ('/ozoneloss/uvmap/' + newest_date, _(u'uv index map')))),

    68         ('/eskp', _(u'ESKP'), (None, None)),

    69         ('/iek-7', _(u'IEK-7'), (None, None))

    70     ]

    71     return menue

    74 app.jinja_env.globals.update(get_topmenue=get_topmenue)

    77 def get_o3lossclams_dates():

    78     menue = [

    79         ('/ozoneloss/clams/2016', _(u'2016')),

    80         ('/ozoneloss/clams/2015', _(u'2015')),

    81         ('/ozoneloss/clams/2012', _(u'2012')),

    82         ('/ozoneloss/clams/2011', _(u'2011')),

    83         ('/ozoneloss/clams/2010', _(u'2010')),

    84     ]

    85     return menue

    88 def get_valid_dates(files):

    89     dates = []

    91     for file in files:

    92         if file.endswith('.png') and file.find('uvi') >= 0:

    93             date = file[-12:-6]

    94             dates.append(date)

    95     dates.sort()

    96     for date in dates:

    97         i = 0

    98         for param in ['uvi', 'o3col', 'do3col']:

    99             testfile = 'clams_' + param + '_' + date + '12.png'

   100             if files.count(testfile) > 0:

   101                 i = i + 1

   102         if i <> 3:

   103             dates.remove(date)

   104     return dates

   107 def get_o3lossuvmap_dates(date_show):

   108     dates = get_valid_dates(FILES)

   109     ndates = len(dates)

   110     ind = dates.index(date_show)

   111     if ind ==0 :

   112         chosendates = [dates[ind+1]]

   113     elif ind >= ndates - 1:

   114         chosendates= [dates[ind-1]]

   115     else:

   116         chosendates = [dates[ind-1], dates[ind+1]]

   117     menue = []

   118     for date in chosendates:

   119         text_date = date[-2:] + '.' + date[-4:-2] + '.'

   120         menue.append(('/ozoneloss/uvmap/' + date, _(text_date)))

   121     return menue

   124 def get_vpsc_dates():

   125     menue = [

   126         ('/ozoneloss/vpsc/2016', _(u'2016')),

   127         ('/ozoneloss/vpsc/2015', _(u'2015')),

   128         ('/ozoneloss/vpsc/2014', _(u'2014')),

   129         ('/ozoneloss/vpsc/2013', _(u'2013')),

   130         ('/ozoneloss/vpsc/2012', _(u'2012')),

   131         ('/ozoneloss/vpsc/2011', _(u'2011')),

   132         ('/ozoneloss/vpsc/2010', _(u'2010')),

   133     ]

   134     return menue

   137 app.jinja_env.globals.update(get_o3lossclams_dates=get_o3lossclams_dates)

   138 app.jinja_env.globals.update(get_vpsc_dates=get_vpsc_dates)

   139 app.jinja_env.globals.update(get_o3lossuvmap_dates=get_o3lossuvmap_dates)

   142 def modal_info(template, act, title, filename):

   143     content = get_content(filename)

   144     html = render_template(template, act=act, title=title, content=content, exit=_(u"Close"))

   145     return html

   148 @babel.localeselector

   149 def get_locale():

   150     """ToDo: if translation is completed, switch to en """

   151     return LANGUAGE_SELECTED or request.accept_languages.best_match(LANGUAGES.keys()) or 'de'

   154 @app.route("/")

   155 @app.route("/index")

   156 def index():

   157     return render_template("/index.html",

   158                            eskp_info=_(u'About ESKP'),

   159                            )

   162 @app.route('/ozoneloss/clams/<year>')

   163 def ozoneloss_clams_year(year):

   164     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_clams.rst")

   165     content = get_content(filename)

   166     return render_template("/ozoneloss_clams.html", act="ozoneloss/clams/%s" % year, content=content, year=year)

   169 @app.route('/ozoneloss/uvmap/<date>')

   170 def ozoneloss_uvmap_date(date):

   171     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_uvmap.rst")

   172     content = get_content(filename)

   173     return render_template("/ozoneloss_uvmap.html", act="ozoneloss/uvmap/%s" % date, content=content, date=date)

   176 @app.route('/ozoneloss/vpsc/<year>')

   177 def ozoneloss_vspc_year(year):

   178     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_vpsc.rst")

   179     content = get_content(filename)

   180     filename = os.path.join("templates", get_locale(), "rst", "explanation_vpsc.rst")

   181     explanation = get_content(filename)

   183     return render_template("/ozoneloss_vpsc.html", act="ozoneloss/vpsc/%s" % year, content=content,

   184                            content_explanation=explanation, year=year)

   187 @app.route('/de')

   188 def de():

   189     global LANGUAGE_SELECTED

   190     LANGUAGE_SELECTED = "de"

   191     return render_template("/index.html",

   192                            eskp_info=_(u'About ESKP'),

   193                            )

   196 @app.route('/en')

   197 def en():

   198     global LANGUAGE_SELECTED

   199     LANGUAGE_SELECTED = "en"

   200     return render_template("/index.html",

   201                            eskp_info=_(u'About ESKP'),

   202                            )

   205 @app.route("/eskp")

   206 def eskp():

   207     filename = os.path.join("templates", get_locale(), "rst", "eskp.rst")

   208     content = get_content(filename)

   209     filename = os.path.join("templates", get_locale(), "rst", "eskp_title.rst")

   210     headline = get_content(filename)

   211     return render_template("/eskp.html", act="eskp", content=content, headline=headline)

   214 def qr_image_data(card):

   215     buf = StringIO.StringIO()

   216     qr = qrcode.QRCode(

   217         version=1,

   218         error_correction=qrcode.constants.ERROR_CORRECT_L,

   219         box_size=2,

   220         border=2,

   221     )

   222     qr.add_data(card.serialize())

   223     qr.make(fit=True)

   224     img = qr.make_image()

   225     img.save(buf)

   226     image = buf.getvalue()

   227     return base64.b64encode(image)

   230 @app.route("/ozoneloss")

   231 def ozoneloss():

   232     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss.rst")

   233     content = get_content(filename)

   235     vcard_file = os.path.join("vcards", "jug.vcf")

   236     author = u""

   238     try:

   239         card = get_vcard(vcard_file)

   240     except IOError:

   241         card = None

   242     if card is not None:

   243         qr_image = qr_image_data(card)

   244         author = render_template("/author_info.html", act="author", title=_(u"Ozoneloss"),

   245                                  card=card, image=qr_image, contact=_(u"Contact"), exit=_(u"Close"))

   247     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_publications.rst")

   248     publications = modal_info("/publications_info.html", "publications", _(u"Ozoneloss"), filename)

   249     return render_template("/ozoneloss.html", act="ozoneloss", content=content,

   250                            author=author, card=card, publications=publications)

   253 @app.route("/ozoneloss/clams")

   254 def ozoneloss_clams():

   255     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_clams.rst")

   256     content = get_content(filename)

   257     return render_template("/ozoneloss_clams.html", act="ozoneloss/clams", content=content)

   260 @app.route("/ozoneloss/uvmap")

   261 def ozoneloss_uvmap():

   262     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_uvmap.rst")

   263     content = get_content(filename)

   264     return render_template("/ozoneloss_uvmap.html", act="ozoneloss/uvmap", content=content)

   267 @app.route("/ozoneloss/vpsc")

   268 def ozoneloss_vspc():

   269     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_vpsc.rst")

   270     content = get_content(filename)

   271     return render_template("/ozoneloss_vpsc.html", act="ozoneloss/vpsc", content=content)

   274 @app.route("/ozoneloss/uvi", methods=['GET'])

   275 def ozoneloss_uvi():

   276     # XXX check 'POST' does not work

   277     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_uvi.rst")

   278     content = get_content(filename)

   280     lat = 50.

   281     o3offset = 50.

   282     figname = "uvincr_lat%0.3i_do3%0.3i.svg" % (lat, o3offset)

   284     return render_template('ozoneloss_uvi.html', act="ozoneloss/uvi", content=content, figname=figname,

   285                            alt=_(u"UV increase at {{lat}} degrees N for {{o3offset}} DU ozone depletion"))

   288 @app.route("/ozoneloss/uvi_graph", methods=['POST'])

   289 def ozoneloss_uvi_graph():

   290     filename = os.path.join("templates", get_locale(), "rst", "ozoneloss_uvi.rst")

   291     content = get_content(filename)

   293     latstr = request.form['Gradzahl']

   294     o3offsetstr = request.form['Dobson-Unit']

   296     latstr2 = latstr.replace(u'\xb0', '')

   298     if latstr2.endswith(u'N'):

   299         latstr2 = latstr2.replace(u'N', '')

   300         lat = float(latstr2)

   301     if latstr2.endswith(u'S'):

   302         latstr2 = latstr2.replace(u'S', '')

   303         lat = -float(latstr2)

   305     figname = "uvincr_lat%0.3i_do3%0.3i.svg" % (lat, float(o3offsetstr))

   307     return render_template('graph.html', act="ozoneloss_uvi_graph", content=content, figname=figname,

   308                            o3offsetstr=o3offsetstr, latstr=latstr)

   311 @app.route("/iek-7")

   312 def institute():

   313     filename = os.path.join("templates", get_locale(), "rst", "iek-7.rst")

   314     content = get_content(filename)

   315     vcard_file = os.path.join("vcards", "sas.vcf")

   316     author = u""

   317     try:

   318         card = get_vcard(vcard_file)

   319     except IOError:

   320         card = None

   321     if card is not None:

   322         qr_image = qr_image_data(card)

   323         author = render_template("/author_info.html", act="author", title=_(u"IEK-7"),

   324                                  card=card, image=qr_image, contact=_(u"Contact"), exit=_(u"Close"))

   326     return render_template("/iek-7.html", act="iek-7", content=content,

   327                            author=author, card=card, contact=u"IEK-7")

   330 @app.route("/imprint")

   331 def imprint():

   332     filename = os.path.join("templates", get_locale(), "rst", "imprint.rst")

   333     content = get_content(filename)

   334     return render_template("/content.html", act="imprint", content=content)

   337 @app.errorhandler(404)

   338 def page_not_found(e):

   339     msg = _(u"Url: %(url)s not found", url=request.url)

   340     info = _(u"This information is not available!")

   341     return render_template("404.html", msg=msg, info=info)

   344 if __name__ == "__main__":

   345     app.run(host='localhost', port=5014, debug=True)

author	Tim Zimmermann
	Fri, 11 Mar 2016 10:00:23 +0100
changeset 498	a4f39dc4db6a
parent 496	0641866df1b0
child 501	bc348dd68c65
child 503	f44e4855e8e5
permissions	-rwxr-xr-x