eskp-app/1.0: eskp.py@521625a4bc85

     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/2017', _(u'calculations')),

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

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

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

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

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

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

    85     ]

    86     return menue

    89 def get_valid_dates(files):

    90     dates = []

    92     for file in files:

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

    94             date = file[-12:-6]

    95             dates.append(date)

    96     dates.sort()

    97     for date in dates:

    98         i = 0

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

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

   101             if files.count(testfile) > 0:

   102                 i = i + 1

   103         if i <> 3:

   104             dates.remove(date)

   105     return dates

   108 def get_o3lossuvmap_dates(date_show):

   109     dates = get_valid_dates(FILES)

   110     ndates = len(dates)

   111     ind = dates.index(date_show)

   112     navitexts = []

   113     if ind ==0 :

   114         chosendates = [dates[ind+1]]

   115         navitexts.append('next ->')

   117     elif ind >= ndates - 1:

   118         chosendates= [dates[ind-1]]

   119         navitexts.append('<- prev')

   120     else:

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

   122         navitexts.append('<- prev')

   123         navitexts.append('next ->')

   124     menue = []

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

   127         date = chosendates[i]

   128         navitext = navitexts[i]

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

   130     return menue

   133 def get_vpsc_dates():

   134     menue = [

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

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

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

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

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

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

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

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

   143     ]

   144     return menue

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

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

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

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

   153     content = get_content(filename)

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

   155     return html

   158 @babel.localeselector

   159 def get_locale():

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

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

   164 @app.route("/")

   165 @app.route("/index")

   166 def index():

   167     return render_template("/index.html",

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

   169                            )

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

   173 def ozoneloss_clams_year(year):

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

   175     content = get_content(filename)

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

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

   180 def ozoneloss_uvmap_date(date):

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

   182     content = get_content(filename)

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

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

   187 def ozoneloss_vspc_year(year):

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

   189     content = get_content(filename)

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

   191     explanation = get_content(filename)

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

   194                            content_explanation=explanation, year=year)

   197 @app.route('/de')

   198 def de():

   199     global LANGUAGE_SELECTED

   200     LANGUAGE_SELECTED = "de"

   201     return render_template("/index.html",

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

   203                            )

   206 @app.route('/en')

   207 def en():

   208     global LANGUAGE_SELECTED

   209     LANGUAGE_SELECTED = "en"

   210     return render_template("/index.html",

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

   212                            )

   215 @app.route("/eskp")

   216 def eskp():

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

   218     content = get_content(filename)

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

   220     headline = get_content(filename)

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

   224 def qr_image_data(card):

   225     buf = StringIO.StringIO()

   226     qr = qrcode.QRCode(

   227         version=1,

   228         error_correction=qrcode.constants.ERROR_CORRECT_L,

   229         box_size=2,

   230         border=2,

   231     )

   232     qr.add_data(card.serialize())

   233     qr.make(fit=True)

   234     img = qr.make_image()

   235     img.save(buf)

   236     image = buf.getvalue()

   237     return base64.b64encode(image)

   240 @app.route("/ozoneloss")

   241 def ozoneloss():

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

   243     content = get_content(filename)

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

   246     author = u""

   248     try:

   249         card = get_vcard(vcard_file)

   250     except IOError:

   251         card = None

   252     if card is not None:

   253         qr_image = qr_image_data(card)

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

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

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

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

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

   260                            author=author, card=card, publications=publications)

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

   264 def ozoneloss_clams():

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

   266     content = get_content(filename)

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

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

   271 def ozoneloss_uvmap():

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

   273     content = get_content(filename)

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

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

   278 def ozoneloss_vspc():

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

   280     content = get_content(filename)

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

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

   285 def ozoneloss_uvi():

   286     # XXX check 'POST' does not work

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

   288     content = get_content(filename)

   290     lat = 50.

   291     o3offset = 50.

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

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

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

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

   299 def ozoneloss_uvi_graph():

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

   301     content = get_content(filename)

   303     latstr = request.form['Gradzahl']

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

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

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

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

   310         lat = float(latstr2)

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

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

   313         lat = -float(latstr2)

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

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

   318                            o3offsetstr=o3offsetstr, latstr=latstr)

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

   322 def institute():

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

   324     content = get_content(filename)

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

   326     author = u""

   327     try:

   328         card = get_vcard(vcard_file)

   329     except IOError:

   330         card = None

   331     if card is not None:

   332         qr_image = qr_image_data(card)

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

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

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

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

   340 @app.route("/imprint")

   341 def imprint():

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

   343     content = get_content(filename)

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

   347 @app.errorhandler(404)

   348 def page_not_found(e):

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

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

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

   354 if __name__ == "__main__":

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

author	Jens-Uwe Grooss <j.-u.grooss@fz-juelich.de>
	Fri, 13 Jan 2017 13:30:46 +0100
changeset 584	521625a4bc85
parent 504	e163180b5abe
child 733	2b46d29ad0d4
permissions	-rwxr-xr-x