eskp-app/1.0: eskp.py@e163180b5abe

     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     navitexts = []

   112     if ind ==0 :

   113         chosendates = [dates[ind+1]]

   114         navitexts.append('next ->')

   116     elif ind >= ndates - 1:

   117         chosendates= [dates[ind-1]]

   118         navitexts.append('<- prev')

   119     else:

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

   121         navitexts.append('<- prev')

   122         navitexts.append('next ->')

   123     menue = []

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

   126         date = chosendates[i]

   127         navitext = navitexts[i]

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

   129     return menue

   132 def get_vpsc_dates():

   133     menue = [

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

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

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

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

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

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

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

   141     ]

   142     return menue

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

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

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

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

   151     content = get_content(filename)

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

   153     return html

   156 @babel.localeselector

   157 def get_locale():

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

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

   162 @app.route("/")

   163 @app.route("/index")

   164 def index():

   165     return render_template("/index.html",

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

   167                            )

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

   171 def ozoneloss_clams_year(year):

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

   173     content = get_content(filename)

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

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

   178 def ozoneloss_uvmap_date(date):

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

   180     content = get_content(filename)

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

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

   185 def ozoneloss_vspc_year(year):

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

   187     content = get_content(filename)

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

   189     explanation = get_content(filename)

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

   192                            content_explanation=explanation, year=year)

   195 @app.route('/de')

   196 def de():

   197     global LANGUAGE_SELECTED

   198     LANGUAGE_SELECTED = "de"

   199     return render_template("/index.html",

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

   201                            )

   204 @app.route('/en')

   205 def en():

   206     global LANGUAGE_SELECTED

   207     LANGUAGE_SELECTED = "en"

   208     return render_template("/index.html",

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

   210                            )

   213 @app.route("/eskp")

   214 def eskp():

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

   216     content = get_content(filename)

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

   218     headline = get_content(filename)

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

   222 def qr_image_data(card):

   223     buf = StringIO.StringIO()

   224     qr = qrcode.QRCode(

   225         version=1,

   226         error_correction=qrcode.constants.ERROR_CORRECT_L,

   227         box_size=2,

   228         border=2,

   229     )

   230     qr.add_data(card.serialize())

   231     qr.make(fit=True)

   232     img = qr.make_image()

   233     img.save(buf)

   234     image = buf.getvalue()

   235     return base64.b64encode(image)

   238 @app.route("/ozoneloss")

   239 def ozoneloss():

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

   241     content = get_content(filename)

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

   244     author = u""

   246     try:

   247         card = get_vcard(vcard_file)

   248     except IOError:

   249         card = None

   250     if card is not None:

   251         qr_image = qr_image_data(card)

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

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

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

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

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

   258                            author=author, card=card, publications=publications)

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

   262 def ozoneloss_clams():

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

   264     content = get_content(filename)

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

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

   269 def ozoneloss_uvmap():

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

   271     content = get_content(filename)

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

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

   276 def ozoneloss_vspc():

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

   278     content = get_content(filename)

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

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

   283 def ozoneloss_uvi():

   284     # XXX check 'POST' does not work

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

   286     content = get_content(filename)

   288     lat = 50.

   289     o3offset = 50.

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

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

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

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

   297 def ozoneloss_uvi_graph():

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

   299     content = get_content(filename)

   301     latstr = request.form['Gradzahl']

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

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

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

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

   308         lat = float(latstr2)

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

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

   311         lat = -float(latstr2)

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

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

   316                            o3offsetstr=o3offsetstr, latstr=latstr)

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

   320 def institute():

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

   322     content = get_content(filename)

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

   324     author = u""

   325     try:

   326         card = get_vcard(vcard_file)

   327     except IOError:

   328         card = None

   329     if card is not None:

   330         qr_image = qr_image_data(card)

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

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

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

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

   338 @app.route("/imprint")

   339 def imprint():

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

   341     content = get_content(filename)

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

   345 @app.errorhandler(404)

   346 def page_not_found(e):

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

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

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

   352 if __name__ == "__main__":

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

author	Jens-Uwe Grooss <j.-u.grooss@fz-juelich.de>
	Fri, 11 Mar 2016 14:17:22 +0100
changeset 504	e163180b5abe
parent 503	f44e4855e8e5
parent 501	bc348dd68c65
child 584	521625a4bc85
permissions	-rwxr-xr-x