eskp-app/1.0: eskp.py@a00541fdf1c9

     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/2018', _(u'calculations')),

    65           ('/ozoneloss/vpsc/2018', _(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/2018', _(u'2018')),

    80         ('/ozoneloss/clams/2017', _(u'2017')),

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

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

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

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

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

    86     ]

    87     return menue

    90 def get_valid_dates(files):

    91     dates = []

    93     for file in files:

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

    95             date = file[-12:-6]

    96             dates.append(date)

    97     dates.sort()

    98     for date in dates:

    99         i = 0

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

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

   102             if files.count(testfile) > 0:

   103                 i = i + 1

   104         if i <> 3:

   105             dates.remove(date)

   106     return dates

   109 def get_o3lossuvmap_dates(date_show):

   110     dates = get_valid_dates(FILES)

   111     ndates = len(dates)

   112     ind = dates.index(date_show)

   113     navitexts = []

   114     if ind ==0 :

   115         chosendates = [dates[ind+1]]

   116         navitexts.append('next ->')

   118     elif ind >= ndates - 1:

   119         chosendates= [dates[ind-1]]

   120         navitexts.append('<- prev')

   121     else:

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

   123         navitexts.append('<- prev')

   124         navitexts.append('next ->')

   125     menue = []

   127     for i in range(len(chosendates)):

   128         date = chosendates[i]

   129         navitext = navitexts[i]

   130         menue.append(('/ozoneloss/uvmap/' + date, _(navitext)))

   131     return menue

   134 def get_vpsc_dates():

   135     menue = [

   136         ('/ozoneloss/vpsc/2018', _(u'2018')),

   137         ('/ozoneloss/vpsc/2017', _(u'2017')),

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

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

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

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

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

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

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

   145     ]

   146     return menue

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

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

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

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

   155     content = get_content(filename)

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

   157     return html

   160 @babel.localeselector

   161 def get_locale():

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

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

   166 @app.route("/")

   167 @app.route("/index")

   168 def index():

   169     return render_template("/index.html",

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

   171                            )

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

   175 def ozoneloss_clams_year(year):

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

   177     content = get_content(filename)

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

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

   182 def ozoneloss_uvmap_date(date):

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

   184     content = get_content(filename)

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

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

   189 def ozoneloss_vspc_year(year):

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

   191     content = get_content(filename)

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

   193     explanation = get_content(filename)

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

   196                            content_explanation=explanation, year=year)

   199 @app.route('/de')

   200 def de():

   201     global LANGUAGE_SELECTED

   202     LANGUAGE_SELECTED = "de"

   203     return render_template("/index.html",

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

   205                            )

   208 @app.route('/en')

   209 def en():

   210     global LANGUAGE_SELECTED

   211     LANGUAGE_SELECTED = "en"

   212     return render_template("/index.html",

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

   214                            )

   217 @app.route("/eskp")

   218 def eskp():

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

   220     content = get_content(filename)

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

   222     headline = get_content(filename)

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

   226 def qr_image_data(card):

   227     buf = StringIO.StringIO()

   228     qr = qrcode.QRCode(

   229         version=1,

   230         error_correction=qrcode.constants.ERROR_CORRECT_L,

   231         box_size=2,

   232         border=2,

   233     )

   234     qr.add_data(card.serialize())

   235     qr.make(fit=True)

   236     img = qr.make_image()

   237     img.save(buf)

   238     image = buf.getvalue()

   239     return base64.b64encode(image)

   242 @app.route("/ozoneloss")

   243 def ozoneloss():

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

   245     content = get_content(filename)

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

   248     author = u""

   250     try:

   251         card = get_vcard(vcard_file)

   252     except IOError:

   253         card = None

   254     if card is not None:

   255         qr_image = qr_image_data(card)

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

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

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

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

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

   262                            author=author, card=card, publications=publications)

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

   266 def ozoneloss_clams():

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

   268     content = get_content(filename)

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

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

   273 def ozoneloss_uvmap():

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

   275     content = get_content(filename)

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

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

   280 def ozoneloss_vspc():

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

   282     content = get_content(filename)

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

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

   287 def ozoneloss_uvi():

   288     # XXX check 'POST' does not work

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

   290     content = get_content(filename)

   292     lat = 50.

   293     o3offset = 50.

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

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

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

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

   301 def ozoneloss_uvi_graph():

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

   303     content = get_content(filename)

   305     latstr = request.form['Gradzahl']

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

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

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

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

   312         lat = float(latstr2)

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

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

   315         lat = -float(latstr2)

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

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

   320                            o3offsetstr=o3offsetstr, latstr=latstr)

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

   324 def institute():

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

   326     content = get_content(filename)

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

   328     author = u""

   329     try:

   330         card = get_vcard(vcard_file)

   331     except IOError:

   332         card = None

   333     if card is not None:

   334         qr_image = qr_image_data(card)

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

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

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

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

   342 @app.route("/imprint")

   343 def imprint():

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

   345     content = get_content(filename)

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

   349 @app.errorhandler(404)

   350 def page_not_found(e):

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

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

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

   356 if __name__ == "__main__":

   357     app.run(host='localhost', port=5014)

author	Jens-Uwe Grooss <j.-u.grooss@fz-juelich.de>
	Fri, 16 Feb 2018 08:37:24 +0100
changeset 761	a00541fdf1c9
parent 733	2b46d29ad0d4
child 845	3ed0b7ffbb50
permissions	-rwxr-xr-x