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geocaching.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

#        Copyright (C) 2009 Daniel Fett
#         This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#        Author: Daniel Fett advancedcaching@fragcom.de
#

import json

import geo
import os

global Image
try:
    import Image
except:
    Image = None
    print "Not using image resize feature"
import re



class GeocacheCoordinate(geo.Coordinate):
    LOG_NO_LOG = 0
    LOG_AS_FOUND = 1
    LOG_AS_NOTFOUND = 2
    LOG_AS_NOTE = 3

    TYPE_REGULAR = 'regular'
    TYPE_MULTI = 'multi'
    TYPE_VIRTUAL = 'virtual'
    TYPE_EVENT = 'event'
    TYPE_MYSTERY = 'mystery'
    TYPE_WEBCAM = 'webcam'
    TYPE_UNKNOWN = 'unknown'
    TYPES = [
        TYPE_REGULAR,
        TYPE_MULTI,
        TYPE_VIRTUAL,
        TYPE_EVENT,
        TYPE_MYSTERY,
        TYPE_WEBCAM,
        TYPE_UNKNOWN
    ]


    SQLROW = {'lat': 'REAL', 'lon': 'REAL', 'name': 'TEXT PRIMARY KEY', 'title': 'TEXT', 'shortdesc': 'TEXT', 'desc': 'TEXT', 'hints': 'TEXT', 'type': 'TEXT', 'size': 'INTEGER', 'difficulty': 'INTEGER', 'terrain': 'INTEGER', 'owner': 'TEXT', 'found': 'INTEGER', 'waypoints': 'text', 'images': 'text', 'notes': 'TEXT', 'fieldnotes': 'TEXT', 'logas': 'INTEGER', 'logdate': 'TEXT', 'marked' : 'INTEGER'}
    def __init__(self, lat, lon, name=''):
        geo.Coordinate.__init__(self, lat, lon, name)
        # NAME = GC-ID
        self.title = ''
        self.shortdesc = ''
        self.desc = ''
        self.hints = ''
        self.type = '' # regular, multi, virtual, webcam,...
        self.size = -1
        self.difficulty = -1
        self.terrain = -1
        self.owner = ''
        self.found = False
        self.waypoints = ''
        self.images = ''
        self.notes = ''
        self.fieldnotes = ''
        self.log_as = self.LOG_NO_LOG
        self.log_date = ''
        self.marked = False

    def serialize(self):

        if self.found:
            found = 1
        else:
            found = 0
        if self.marked:
            marked = 1
        else:
            marked = 0
        return {
            'lat': self.lat,
            'lon': self.lon,
            'name': self.name,
            'title': self.title,
            'shortdesc': self.shortdesc,
            'desc': self.desc,
            'hints': self.hints,
            'type': self.type,
            'size': self.size,
            'difficulty': self.difficulty,
            'terrain': self.terrain,
            'owner': self.owner,
            'found': found,
            'waypoints': self.waypoints,
            'images': self.images,
            'notes': self.notes,
            'fieldnotes': self.fieldnotes,
            'logas': self.log_as,
            'logdate': self.log_date,
            'marked' : marked
        }
                
    def unserialize(self, data):
        self.lat = data['lat']
        self.lon = data['lon']
        self.name = data['name']
        self.title = data['title']
        self.shortdesc = data['shortdesc']
        self.desc = data['desc']
        self.hints = data['hints']
        self.type = data['type']
        self.size = int(data['size'])
        self.difficulty = float(data['difficulty'])
        self.terrain = float(data['terrain'])
        self.owner = data['owner']
        self.found = (data['found'] == 1)
        self.waypoints = data['waypoints']
        self.images = data['images']
        if data['notes'] == None:
            self.notes = ''
        else:
            self.notes = data['notes']
        if data['fieldnotes'] == None:
            self.fieldnotes = ''
        else:
            self.fieldnotes = data['fieldnotes']
        self.log_as = data['logas']
        self.log_date = data['logdate']
        self.marked = (data['marked'] == 1)

    def get_waypoints(self):
        if self.waypoints == None or self.waypoints == '':
            return []
        return json.loads(self.waypoints)

    def get_images(self):
        if self.images == None or self.images == '':
            return []
        return json.loads(self.images)

    def set_waypoints(self, wps):
        self.waypoints = json.dumps(wps)

    def set_images(self, imgs):
        self.images = json.dumps(imgs)
                
                
    def was_downloaded(self):
        return (self.shortdesc != '' or self.desc != '')


class FieldnotesUploader():
    def __init__(self, downloader):
        self.downloader = downloader
        self.notes = []

    def add_fieldnote(self, geocache):
        if geocache.log_date == '':
            raise Exception("Illegal Date.")

        if geocache.log_as == GeocacheCoordinate.LOG_AS_FOUND:
            log = "Found it"
        elif geocache.log_as == GeocacheCoordinate.LOG_AS_NOTFOUND:
            log = "Didn't find it"
        elif geocache.log_as == GeocacheCoordinate.LOG_AS_NOTE:
            log = "Write note"
        else:
            raise Exception("Illegal status: %s" % self.log_as)

        text = geocache.fieldnotes.replace('"', "'")

        self.notes.append('%s,%sT10:00Z,%s,"%s"' % (geocache.name, geocache.log_date, log, text))

    def upload(self):
        text = "\r\n".join(self.notes).encode("UTF-16")
        response = self.downloader.get_reader('http://www.geocaching.com/my/uploadfieldnotes.aspx',
                                              data=self.downloader.encode_multipart_formdata(
                                              [('btnUpload', 'Upload Field Note'), ('__VIEWSTATE', '/wEPDwUJMTAzMzMxMDA0ZBgBBR5fX0NvbnRyb2xzUmVxdWlyZVBvc3RCYWNrS2V5X18WAQUPY2hrU3VwcHJlc3NEYXRl81S0OxJD683dU+w4wK4MfecRC8k=')],
                                              [('fileUpload', 'geocache_visits.txt', text)]
                                              ))
        res = response.read()
        if not "successfully uploaded" in res:
            raise Exception("Something went wrong while uploading the field notes.")
        else:
            return True
        

class CacheDownloader():

    MAX_REC_DEPTH = 4
    
    def __init__(self, downloader, path, download_images, resize = None):
        self.downloader = downloader
        self.path = path
        self.download_images = download_images
        self.resize = resize
        if not os.path.exists(path):
            raise Exception("Path does not exist: %s" % path)
        
    @staticmethod
    def __rot13(text):
        import string
        trans = string.maketrans(
                                 'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM',
                                 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')
        return text.translate(trans)

    @staticmethod
    def __strip_html(text):
        return re.sub(r'<[^>]*?>', '', text)

    @staticmethod
    def __replace_br(text):
        return re.sub('(<[bB][rR]\s*/?>|</[pP]>', '\n', text)

    def __treat_hints(self, hints):
        hints = self.__strip_html(hints).strip()
        hints = self.__rot13(hints)
        hints = re.sub(r'\[([^\]]+)\]', lambda match: self.__rot13(match.group(0)), hints)
        return hints

    def __treat_desc(self, desc):
        desc = self.__treat_html(desc.rsplit('\n', 5)[0])
        desc = self.__replace_images(desc)
        return desc.strip()
        
    def __treat_shortdesc(self, desc):
        if desc.strip() == '':
            return ''
        desc = self.__treat_html(desc.rsplit('\n', 3)[0])
        return desc
        
    def __treat_html(self, html):
        strip_comments = re.compile('<!--.*?-->', re.DOTALL)
        html = strip_comments.sub('', html)
        html = self.__replace_images(html)
        return html

    @staticmethod
    def __from_dm(direction, decimal, minutes):
        if direction == None or decimal == None or minutes == None:
            return -1
        if direction in "SsWw":
            sign = -1
        else:
            sign = 1
                
        return (float(decimal) + (float(minutes) / 60.0)) * sign

    def __treat_waypoints(self, data):

        waypoints = []
        finder = re.finditer(r'<tr bgcolor="#ffffff">\s+<td valign="top" align="center" width="16"><img [^>]+></td>\s*' +
                             r'<td valign="top" align="center" width="16"><img [^>]+></td>\s*' +
                             r'<td valign="top" align="left">(?P<id_prefix>[^<]+)</td>\s*' +
                             r'<td valign="top" align="left">(?P<id>[^<]+)</td>\s*' +
                             r'<td valign="top" align="left"><a href=[^>]+>(?P<name>[^<]+)</a>[^<]+</td>\s*' +
                             r'<td valign="top" align="left">(\?\?\?|(?P<lat_sign>N|S) (?P<lat_d>\d+)° (?P<lat_m>[0-9\.]+) (?P<lon_sign>E|W) (?P<lon_d>\d+)° (?P<lon_m>[0-9\.]+))</td>\s*' +
                             r'<td valign="top" align="left"></td>\s+</tr>\s*<tr bgcolor="#FFFFFF">\s+<td colspan="2" ' +
                             r'valign="top">Note:</td>\s*<td valign="top" align="left" colspan="4">(?P<comment>.*?)</td>\s*<td>&nbsp;</td>\s*</tr> ', data, re.DOTALL)
        for m in finder:
            if m.group(1) == None:
                continue
            waypoints.append({
                             'lat': self.__from_dm(m.group('lat_sign'), m.group('lat_d'), m.group('lat_m')),
                             'lon': self.__from_dm(m.group('lon_sign'), m.group('lon_d'), m.group('lon_m')),
                             'id': "%s%s" % m.group('id_prefix', 'id'),
                             'name': m.group('name'),
                             'comment': m.group('comment')
                             })

        return waypoints

    def __treat_images(self, data):
        finder = re.finditer('<a href="([^"]+)" rel="lightbox"><img src="../images/stockholm/16x16/images.gif" align="absmiddle" border="0">([^<]+)</a>', data)
        for m in finder:
            if m.group(1) == None:
                continue
            id = self.__download_image(url = m.group(1))
            if id != None:
                self.__add_image(id, m.group(2))

    def __replace_images(self, data):
        return re.sub('(?is)(<img[^>]+src=["\']?)([^ >"\']+)([^>]+?>)', self.__replace_image_callback, data)

    def __replace_image_callback(self, m):
        url = m.group(2)
        if not url.startswith('http://'):
            return m.group(0)
        id = self.__download_image(url)
        if id == None:
            return m.group(0)
        else:
            self.__add_image(id)
            return "[[img:%s]]" % id

    def __download_image(self, url):
        if url in self.downloaded_images.keys():
            return self.downloaded_images[url]
        
        ext = url.rsplit('.', 1)[1]
        if not re.match('^[a-zA-Z0-9]+$', ext):
            ext = 'img'
        filename = ''
        id = "%s-image%d.%s" % (self.current_cache.name, self.current_image, ext)

        if self.download_images:
            try:
                print "+ Downloading %s" % url
                filename = os.path.join(self.path, id)
                f = open(filename, 'wb')
                f.write(self.downloader.get_reader(url).read())
                f.close()
                if Image != None and self.resize != None and self.resize > 0:
                    im = Image.open(filename)
                    im.thumbnail((self.resize, self.resize), Image.ANTIALIAS)
                    im.save(filename)
            except Exception as e:
                print "could not download %s: %s" % (url, e)
                return None

        self.downloaded_images[url] = id
        self.current_image += 1
        return id

    def __add_image(self, id, description = ''):
        if ((id in self.images.keys() and len(description) > len(self.images[id]))
            or id not in self.images.keys()):
            self.images[id] = description

    @staticmethod
    def __decode_htmlentities(string):
        def substitute_entity(match):
            from htmlentitydefs import name2codepoint as n2cp
            ent = match.group(3)
            if match.group(1) == "#":
                # decoding by number
                if match.group(2) == '':
                    # number is in decimal
                    return unichr(int(ent))
                elif match.group(2) == 'x':
                    # number is in hex
                    return unichr(int('0x' + ent, 16))
            else:
                # they were using a name
                cp = n2cp.get(ent)
                if cp:
                    return unichr(cp)
                else:
                    return match.group()

        entity_re = re.compile(r'&(#?)(x?)(\w+);')
        return entity_re.subn(substitute_entity, string)[0]
                
    def update_coordinate(self, coordinate):
        self.downloaded_images = {}
        self.current_image = 0
        self.images = {}
        self.current_cache = coordinate
        response = self.__get_cache_page(coordinate.name)
        return self.__parse_cache_page(response, coordinate)
        
    def __get_cache_page(self, cacheid):
        return self.downloader.get_reader('http://www.geocaching.com/seek/cache_details.aspx?wp=%s' % cacheid)
                
    def get_geocaches(self, location, rec_depth = 0):
        # don't recurse indefinitely
        if rec_depth > self.MAX_REC_DEPTH:
            return []

        c1, c2 = location
        url = 'http://www.geocaching.com/map/default.aspx?lat=49&lng=6'
        values = {'eo_cb_id':'ctl00_ContentBody_cbAjax',
            'eo_cb_param':'{"c": 1, "m": "", "d": "%f|%f|%f|%f"}' % (max(c1.lat, c2.lat), min(c1.lat, c2.lat), max(c1.lon, c2.lon), min(c1.lon, c2.lon)),
            'eo_version':'5.0.51.2'
        }
        response = self.downloader.get_reader(url, values)

        the_page = response.read()
        extractor = re.compile('.*<ExtraData><!\[CDATA\[(.*)\]\]>', re.DOTALL)
        match = extractor.match(the_page)
        if match == None:
            raise Exception('Could not load map of geocaches')
        text = match.group(1).replace("\\'", "'")
        a = json.loads(text.replace('\t', ' '))
        points = []

        if not 'cc' in a['cs'].keys():
            if 'count' in a['cs'].keys() and 'count' != 0:
                # let's try to download one half of the geocaches first
                mlat = (c1.lat + c2.lat)/2
                nc1 = geo.Coordinate(min(c1.lat, c2.lat), min(c1.lon, c2.lon))
                mc1 = geo.Coordinate(mlat, max(c1.lon, c2.lon))
                mc2 = geo.Coordinate(mlat, min(c1.lon, c2.lon))
                nc2 = geo.Coordinate(max(c1.lat, c2.lat), max(c1.lon, c2.lon))
                print "recursing..."
                points += self.get_geocaches((nc1, mc1), rec_depth + 1)
                points += self.get_geocaches((mc2, nc2), rec_depth + 1)
            return points
        for b in a['cs']['cc']:
            c = GeocacheCoordinate(b['lat'], b['lon'], b['gc'])
            c.title = b['nn']
            if b['ctid'] == 2:
                c.type = GeocacheCoordinate.TYPE_REGULAR
            elif b['ctid'] == 3:
                c.type = GeocacheCoordinate.TYPE_MULTI
            elif b['ctid'] == 4:
                c.type = GeocacheCoordinate.TYPE_VIRTUAL
            elif b['ctid'] == 6:
                c.type = GeocacheCoordinate.TYPE_EVENT
            elif b['ctid'] == 8:
                c.type = GeocacheCoordinate.TYPE_MYSTERY
            elif b['ctid'] == 11:
                c.type = GeocacheCoordinate.TYPE_WEBCAM
            else:
                c.type = GeocacheCoordinate.TYPE_UNKNOWN
            c.found = b['f']
            points.append(c)
        return points
                
    def __parse_cache_page(self, cache_page, coordinate):
        indesc = inshortdesc = inhints = inwaypoints = False
        inhead = True
        shortdesc = desc = hints = waypoints = images = ''
        for line in cache_page:
            line = line.strip()
            #line = unicode(line, errors='replace')
        
            if line.startswith('<span id="ShortDescription">'):
                inhead = False
                inshortdesc = True
            elif line.startswith('<span id="LongDescription">'):
                inhead = False
                inshortdesc = False
                indesc = True
            elif line.startswith('<strong>Additional Hints&nbsp;(</strong>'):
                inhead = False
                inshortdesc = False
                indesc = False
                inhints = False
            elif line.startswith('<span id="Hints"'):
                inhead = False
                inshortdesc = False
                indesc = False
                inhints = True
            elif line.startswith('<span id="decryptHint"'):
                inhead = False
                inshortdesc = False
                indesc = False
                inhints = False
            elif line.startswith('<strong>Additional Waypoints</strong>'):
                inhead = False
                inshortdesc = False
                indesc = False
                inhints = False
                inwaypoints = True
            elif line.startswith('</table>') and inwaypoints:
                inwaypoints = False
            elif line.startswith('<span id="Images"'):
                images = line
                                        
            if inhead:
                if line.startswith('<span id="CacheOwner">'):
                    owner = re.compile(".*by <[^>]+>([^<]+)</a>").match(line).group(1)
                elif line.startswith('<img src="../images/icons/container/'):
                    size = re.compile(".*container/([^\\.]+)\\.").match(line).group(1)
                elif line.startswith('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<b>Difficulty:'):
                    difficulty = re.compile('.*"([0-9\\.]+) out of').match(line).group(1)
                elif line.startswith('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<b>Terrain:'):
                    terrain = re.compile('.*"([0-9\\.]+) out of').match(line).group(1)
#                elif line.startswith('<a id="lnkPrintFriendly" class="lnk" href="cdpf.aspx?guid'):
#                    guid = re.compile('.*cdpf\\.aspx\?guid=([a-z0-9-]+)"').match(line).group(1)
            if inshortdesc:
                shortdesc += "%s\n" % line
                
            if indesc:
                desc += "%s\n" % line
                
            if inhints:
                hints += "%s\n" % line
                
            if inwaypoints:
                waypoints += "%s  " % line

        coordinate.owner = self.__decode_htmlentities(owner)
        if size == 'micro':
            coordinate.size = 1
        elif size == 'small':
            coordinate.size = 2
        elif size == 'regular':
            coordinate.size = 3
        elif size == 'big':
            coordinate.size = 4
        elif size == 'not_chosen':
            coordinate.size = 5
        else:
            print "Size not known: %s" % size
            coordinate.size = 5
        coordinate.difficulty = 10 * float(difficulty)
        coordinate.terrain = 10 * float(terrain)
        coordinate.shortdesc = self.__treat_shortdesc(shortdesc)
        coordinate.desc = self.__treat_desc(desc)
        coordinate.hints = self.__treat_hints(hints)
        coordinate.set_waypoints(self.__treat_waypoints(waypoints))
        self.__treat_images(images)
        coordinate.set_images(self.images)
                
        return coordinate
                
        
class HTMLExporter():
    def __init__(self, downloader, path):
        self.downloader = downloader
        self.path = path
        if not os.path.exists(path):
            try:
                os.mkdir(path)
            except:
                raise
                
    def export(self, coordinate, folder = None):
        if coordinate.name == '':
            raise Exception('Koordinate hat keinen Namen')
        if folder == None:
            folder = self.path
        filename = self.__get_uri(coordinate, folder)
        f = open(filename, 'w')
        self.__write_html(f, coordinate)
        f.close()
        self.__copy_images(coordinate, folder)
        
    def __copy_images(self, coordinate, folder):
        for image, description in coordinate.get_images().items():
            src = os.path.realpath(os.path.join(self.path, image))
            dst = os.path.realpath(os.path.join(folder, image))
            if not src == dst and not os.path.exists(dst) and os.path.exists(src):
                import shutil
                shutil.copy(src, dst)
                
    def __get_uri(self, coordinate, folder):
        return os.path.join(folder, "%s%shtml" % (coordinate.name, os.extsep))
                
    def write_index(self, caches):
        b = [{'n': c.name, 't': c.title} for c in caches]
        caches = json.dumps(b)
        f = open(os.path.join(self.path, "index.html"), 'w')
        f.write('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"')
        f.write(' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">')
        f.write('<html xmlns="http://www.w3.org/1999/xhtml"> <head>')
        f.write('<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />')
        f.write(' <title>Geocache suchen</title> <script type="text/javascript">\n')
        f.write(' var caches = %s;' % caches)
        f.write("""function refresh() {
            s = document.getElementById('search'); t = s.value.toLowerCase(); ht = '';
                   if (t.length > 2) { for (var c in caches) {
                                   if (caches[c]['t'].toLowerCase().indexOf(t) != -1 || caches[c]['n'].toLowerCase().indexOf(t) != -1) {
                                           ht = ht + "<a href='" + caches[c]['n'] + ".html'>" + caches[c]['n'] + "|" + caches[c]['t'] + "<br>";
                                   } }
                   } else { ht = "(Bitte mehr als 2 Zeichen eingeben)"; }
                   document.getElementById('res').innerHTML = ht; }
                  </script>
                 </head> <body>
                  <fieldset><legend>Geocache suchen</legend>
                  <input type="text" name="search" id="search" onkeyup="refresh()" />
                  </fieldset>
                  <fieldset><legend>Ergebnisse</legend>
                  <div id="res">Bitte Suchbegriff eingeben!</div>
                  </fieldset>  </body> </html>
                """)
        f.close()
                
                

    def __write_html(self, f, coordinate):
        f.write('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"')
        f.write(' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">\n')
        f.write('<html xmlns="http://www.w3.org/1999/xhtml">\n <head>\n')
        f.write('<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />')
        self.__write_header(f, coordinate)
        f.write(' </head>\n <body>\n')
        self.__write_body(f, coordinate)
        f.write(' </body>\n</html>\n')
        
    def __write_header(self, f, coordinate):
        f.write('  <title>%s|%s</title>\n' % (coordinate.name, coordinate.title))
                
    def __write_body(self, f, coordinate):
        f.write('  <h2>%s|%s</h2>\n' % (coordinate.name, coordinate.title))
        f.write('  <fieldset><legend>Daten</legend>\n')
        f.write('   <div style="display:inline-block;"><b>Size:</b> %s/5</div><br />\n' % coordinate.size)
        f.write('   <div style="display:inline-block;"><b>Difficulty:</b> %.1f/5</div><br />\n' % (coordinate.difficulty / 10))
        f.write('   <div style="display:inline-block;"><b>Terrain:</b> %.1f/5</div><br />\n' % (coordinate.terrain / 10))
        f.write('  </fieldset>\n')
        f.write('  <fieldset><legend>Koordinaten</legend>\n')
        f.write('   <div style="display:inline-block;"><b>MAIN:</b> <code>%s %s</code></div><br />\n' % (coordinate.get_lat(geo.Coordinate.FORMAT_DM), coordinate.get_lon(geo.Coordinate.FORMAT_DM)))
        if len(coordinate.get_waypoints()) > 0:
            f.write('   <table>\n')
            for w in coordinate.get_waypoints():
                if not (w['lat'] == -1 and w['lon'] == -1):
                    n = geo.Coordinate(w['lat'], w['lon'])
                    latlon = "%s %s" % (n.get_lat(geo.Coordinate.FORMAT_DM), n.get_lon(geo.Coordinate.FORMAT_DM))
                else:
                    latlon = "???"
                f.write('    <tr style="background-color:#bbf"><th>%s</th><td><code>%s</code></td></tr>\n' % (w['name'], latlon))
                f.write('    <tr style="background-color:#ddd"><td colspan="2">%s</tr>\n' % w['comment'])
            f.write('   </table>\n')
        f.write('  </fieldset>')
        f.write('  <fieldset><legend>Cachebeschreibung</legend>\n')
        f.write(self.__replace_images(coordinate.desc, coordinate))
        f.write('  </fieldset>')
        if len(coordinate.get_images()) > 0:
            f.write('  <fieldset><legend>Bilder</legend>\n')
            for image, description in coordinate.get_images().items():
                f.write('   <em>%s:</em><br />\n' % description)
                f.write('   <img src="%s" />\n' % image)
                f.write('   <hr />\n')
            f.write('  </fieldset>')

    def __replace_images(self, text, coordinate):
        return re.sub(r'\[\[img:([^\]]+)\]\]', lambda a: self.__replace_image_callback(a, coordinate), text)

    def __replace_image_callback(self, match, coordinate):
        if match.group(1) in coordinate.get_images().keys():
            return '<img src="%s" />' % match.group(1)
        else:
            return ' [image not found -- please re-download geocache description] '

        
"""
class GpxReader():
        def __init__(self, pointprovider):
                self.pointprovider = pointprovider
                
        def read_file(self, filename):
                lat = lon = -1
                uid = name = comment = description = url = cachetype = ''
                found = intag = False
                locline = re.compile('<wpt lat="(\d+\.\d+)" lon="(\d+\.\d+)"')
                if os.path.exists(filename):
                        for line in open(filename, 'r'):
                                line = line.strip()
                                if line.startswith('<wpt'):
                                        match = locline.match(line)
                                        lat = float(match.group(1))
                                        lon = float(match.group(2))
                                        intag = True
                                elif line.startswith('<name>') and intag and lat != -1 and lon != -1:
                                        name = line.rpartition('</name>')[0][6:]
                                        currentcoord = GeocacheCoordinate(lat, lon, name)
                                elif line.startswith('<cmt>') and intag:
                                        currentcoord.title = line.rpartition('</cmt>')[0][5:]
                                elif line.startswith('<desc>') and intag:
                                        currentcoord.desc = line.rpartition('</desc>')[0][6:]
                                elif line.startswith('<sym>') and intag:
                                        typestring = line.rpartition('</sym>')[0][5:].split('-')
                                        currentcoord.type = typestring[-1]
                                        if typestring[1] == 'ifound':
                                                currentcoord.found = True
                                                #found = False                                                                                                
                                elif line.startswith('</wpt>') and intag:
                                        self.pointprovider.add_point(currentcoord)
                                        currentcoord = None
                                        lat = lon = -1
                                        uid = name = comment = description = url = cachetype = ''
                                        found = intag = False
"""

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