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improved web interface, JS download option missing, no storage of files on host system necessary anymore

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fordprefect
2020-03-27 20:25:59 +01:00
parent dba6ed4b0b
commit afb5cc3336
1 changed files with 87 additions and 15 deletions
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102
websearch.py
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@@ -11,6 +11,9 @@ print("Content-type: text/html\n") # makes sure the http connection does not die
import cgi
import pathvalidate
import osmsearch
import datetime
import random
import os
import sys
assert sys.version_info >= (3, 6), "At least Python 3.8 required due to fStrings. Replace all f\"…\" and comment this line to enable running in lower versions (but really, you should just update your Python version…)."
@@ -25,37 +28,106 @@ args = {
"limit": 50,
"use_boundingbox": False,
"boundingbox": [],
"outputfilename": None,
"ignore_ids": [],
"maxsearchnums": 10,
"url": "https://nominatim.openstreetmap.org/search/",
"output": "return",
}
immutable_args = ["format", "outputfilename", "url",]
immutable_args = ["format", "url", "ouput"]
outputfolder = "downloads"
DEBUG = False
#####################################
######## end of configuration
#####################################
def get_arguments():
"""Wrapper for cgi-environment.
Takes no options, returns dict of arguments
"""
args = cgi.FieldStorage()
return {i: args.getvalue(i) for i in args}
# get cgi args and sanitize
cgi_args = get_arguments()
# get cgi args sanitize, and update default args
rawargs = cgi.FieldStorage()
cgi_args = {i: rawargs.getvalue(i) for i in rawargs}
del(rawargs)
parsed_args = {}
try:
cgi_args["q"] = pathvalidate.sanitize_filename(cgi_args["query"])
except KeyError:
# no key called "query" found, abort
exit()
if DEBUG:
# local testing
cgi_args["q"] = "Camping"
else:
# we don't need to exit gracefully, whoever is arriving here has fiddled with the request manually
exit()
for arg in cgi_args:
if arg not in immutable_args and arg in args:
parsed_args[arg] = cgi_args[arg]
print(parsed_args, " parsed")
if DEBUG: print("Parsed argument dict: ", parsed_args)
args.update(cgi_args)
#status = osmsearch.conduct_search(args)
# generate output file name from query
# outputfolder/date-randomnumber.gpx
if not os.path.isdir(outputfolder):
os.makedirs(outputfolder)
outputfilename = f"{outputfolder}/{str(datetime.date.today())}-{str(random.random()).replace('0.', '')}.gpx"
args["outputfilename"] = outputfilename
searchresult = osmsearch.OSMSearch(args)
gpxcontent = searchresult.gpxfile.to_xml()
gpxcontent_escaped = searchresult.gpxfile.to_xml().replace("\\", "\\\\").replace("'", "\\'").replace('"', '\\"')
print("""
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" type="text/css" href="style.css">
<meta name="robots" content="noindex,nofollow" />
<title>OSM search to GPX</title>
<script type='text/javascript'>
function download_file(filename, text) {
var element = document.createElement('a');
element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
element.setAttribute('download', filename);
element.style.display = 'none';
document.body.appendChild(element);
element.click();
document.body.removeChild(element);
}
</script>
</head>
<body class=body>
<div class=head>
<h3>Export OSM search to GPX file</h3>
</div>
<div class=box>
<h4>Success</h4>
Copy file content from here:
<br>
<textarea rows=10 cols=80 style="font-family: monospace;">"""
+ gpxcontent +
"""</textarea>
<br><br>
<a href=index.html>Return to search page</a>
</div>
<div class=foot>
OSMsearchToGPX - ein Service von <a href=https://dukun.de>dukun.de</a>
</div>
</body>
</html>
""")
# TODO download button does not work this way!
#"""</textarea>
#<br>
#or <button onclick="download_file('OSMsearch.gpx', '{gpxcontent}')">dowload here</button> (requires enabled JavaScript).
#
#<br><br>
#<a href=index.html>Return to search page</a>
#
#</div>
#<div class=foot>
#OSMsearchToGPX - ein Service von <a href=https://dukun.de>dukun.de</a>
#</div>
#</body>
#</html>
#""".format(gpxcontent=gpxcontent_escaped))