Commit 043f4a85 authored by Klaus-Uwe Mitterer's avatar Klaus-Uwe Mitterer

Add GPX output option

parent b7476c5d
......@@ -4,6 +4,8 @@ import configparser
import pymysql
GJSON = 0
def getDatabase(path = "config.cfg"):
config = configparser.RawConfigParser()
config.read(path)
......@@ -18,6 +20,83 @@ def getDatabase(path = "config.cfg"):
return conn, cur
def buildGJSON(data):
output = """{
"type": "FeatureCollection",
"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
"features": [
{ "type": "Feature",
"properties": {
"Name": null,
"description": null,
"timestamp": null,
"begin": null,
"end": null,
"altitudeMode": null,
"tessellate": -1,
"extrude": 0,
"visibility": -1,
"drawOrder": null,
"icon": null,
"styleUrl": "#style",
"styleHash": "1a1ac94e",
"stroke": "#ffff00",
"stroke_opacity": "0.4980392156862745",
"stroke_width": "4",
"fill": "#00ff00",
"fill_opacity": "0.4980392156862745"
},
"geometry": {
"type": "LineString",
"coordinates": [
"""
for row in data:
output += " [ %s, %s ],\n" % (row["lon"], row["lat"])
output = "".join(output.rsplit(",", 1))
output += """ ]
}
}
]
}"""
headers = [["Content-Type", "application/vnd.geo+json"], ['Content-Disposition', 'attachment; filename="export.geojson"']]
return headers, output
def buildGPX(data):
output = """<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<gpx xmlns="http://www.topografix.com/GPX/1/1" version="1.1" creator="pygps"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd">
<metadata>
<name>export.gpx</name>
<desc>GPS Data Export</desc>
<author>
<name>pygps</name>
</author>
</metadata>
<trk>
<trkseg>
"""
for row in data:
output += """ <trkpt lat="%s" lon="%s">
<time>%s</time>
</trkpt>
""" % (row["lat"], row["lon"], row["ts"].isoformat())
output += """ </trkseg>
</trk>
</gpx>
"""
headers = [["Content-Type", "application/gpx+xml"], ['Content-Disposition', 'attachment; filename="export.gpx"']]
return headers, output
def application(env, re):
if env["REQUEST_METHOD"] == "POST":
args = cgi.parse_qs(env['wsgi.input'].readline().decode(), True)
......@@ -127,6 +206,19 @@ def application(env, re):
frm = on if on else args["from"][0] if "from" in args else None
to = on if on else args["to"][0] if "to" in args else None
if "format" in args:
if args["format"][0] in ("json", "gjson", "geojson", "gj") or not args["format"]:
builder = buildGJSON
elif args["format"][0] == "gpx":
builder = buildGPX
else:
re("400 Bad Request", [])
yield "<h1>400 Bad Request</h1>".encode()
yield "Unknown format: %s" % args["format"]
return
else:
builder = buildGJSON
frm = frm or "2000-01-01"
to = to or datetime.datetime.now().strftime('%Y-%m-%d')
......@@ -144,49 +236,11 @@ def application(env, re):
sql = "SELECT ts, lat, lon FROM tracker WHERE device=%s AND DATE(ts)>=%s and DATE(ts)<=%s ORDER BY ts ASC;";
cur.execute(sql, (device, frm, to))
re("200 OK", [["Content-Type", "application/vnd.geo+json"], ['Content-Disposition', 'attachment; filename="export.geojson"']])
data = cur.fetchall()
output = """{
"type": "FeatureCollection",
"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
"features": [
{ "type": "Feature",
"properties": {
"Name": null,
"description": null,
"timestamp": null,
"begin": null,
"end": null,
"altitudeMode": null,
"tessellate": -1,
"extrude": 0,
"visibility": -1,
"drawOrder": null,
"icon": null,
"styleUrl": "#style",
"styleHash": "1a1ac94e",
"stroke": "#ffff00",
"stroke_opacity": "0.4980392156862745",
"stroke_width": "4",
"fill": "#00ff00",
"fill_opacity": "0.4980392156862745"
},
"geometry": {
"type": "LineString",
"coordinates": [
"""
for row in cur.fetchall():
output += " [ %s, %s ],\n" % (row["lon"], row["lat"])
output = "".join(output.rsplit(",", 1))
output += """ ]
}
}
]
}"""
headers, output = builder(data)
re("200 OK", headers)
cur.close()
conn.close()
......
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