troggle-unchained/core/views/surveys.py
2021-04-08 01:09:06 +01:00

109 lines
4.7 KiB
Python

import os, stat
import re
from pathlib import Path
from urllib.parse import urljoin, unquote as urlunquote
from urllib.request import urlopen
from django.conf import settings
from django.shortcuts import render
from django.http import HttpResponse, Http404
from troggle.core.models_survex import ScansFolder, SingleScan, SurvexBlock, TunnelFile
from troggle.core.views.expo import getmimetype
import parsers.surveys
'''Some of these views serve files as binary blobs, and simply set the mime type based on the file extension,
as does the urls.py dispatcher which sends them here. Here they should actually have the filetype checked
by looking inside the file before being served.
need to check if inavlid query string is invalid, or produces multiple replies
and render a user-friendly error page.
'''
def surveyscansfolder(request, path):
#print [ s.walletname for s in ScansFolder.objects.all() ]
scansfolder = ScansFolder.objects.get(walletname=urlunquote(path)) # need to check if inavlid query string and produce friendly error
return render(request, 'scansfolder.html', { 'scansfolder':scansfolder, 'settings': settings })
def surveyscansingle(request, path, file):
'''sends a single binary file to the user,
'''
scansfolder = ScansFolder.objects.get(walletname=urlunquote(path)) # need to check if inavlid query string and produce friendly error
singlescan = SingleScan.objects.get(scansfolder=scansfolder, name=file)
# print(" - surveyscansingle {}:{}:{}:".format(path, file, getmimetype(file)))
return HttpResponse(content=open(singlescan.ffile,"rb"), content_type=getmimetype(file)) # any type of image
def surveyscansfolders(request):
manyscansfolders = ScansFolder.objects.all()
return render(request, 'manyscansfolders.html', { 'manyscansfolders':manyscansfolders, 'settings': settings })
def tunneldata(request):
tunnelfiles = TunnelFile.objects.all()
return render(request, 'tunnelfiles.html', { 'tunnelfiles':tunnelfiles, 'settings': settings })
def dwgfilesingle(request, path):
'''sends a single binary file to the user, We should have a renderer that syntax-colours this Tunnel xml
but it might be a Therion file
'''
tunnelfile = TunnelFile.objects.get(tunnelpath=urlunquote(path)) # need to check if invalid query string and produce friendly error
tfile = Path(settings.TUNNEL_DATA, tunnelfile.tunnelpath)
try: # for display not download
return HttpResponse(content=open(tfile, errors='strict'), content_type="text/xhtml")
except UnicodeDecodeError:
try:
return HttpResponse(content=open(tfile,encoding='iso-8859-1'), content_type="text/xhtml")
except:
return HttpResponse(content=open(tfile,mode='rb'), content_type="text/xhtml")
else:
return HttpResponse(content=open(tfile, errors='ignore'), content_type="text/xhtml")
else:
return HttpResponse(content="Unable to understand the encoding for this file: not UTF-8 nor iso-8859-1, or some other read error happened.")
def tunnelfileupload(request, path):
tunnelfile = TunnelFile.objects.get(tunnelpath=urlunquote(path)) # need to check if inavlid query string and produce friendly error
tfile = Path(settings.TUNNEL_DATA, tunnelfile.tunnelpath)
project, user, password, tunnelversion = request.POST["tunnelproject"], request.POST["tunneluser"], request.POST["tunnelpassword"], request.POST["tunnelversion"]
print((project, user, tunnelversion))
if not (len(list(request.FILES.values())) == 1): # "only one file to upload"
return HttpResponse(content="Error: more than one file selected for upload", content_type="text/plain")
uploadedfile = list(request.FILES.values())[0]
if uploadedfile.field_name != "sketch":
return HttpResponse(content="Error: non-sketch file uploaded", content_type="text/plain")
if uploadedfile.content_type != "text/plain":
return HttpResponse(content="Error: non-plain content type", content_type="text/plain")
# could use this to add new files
if os.path.split(path)[1] != uploadedfile.name:
return HttpResponse(content="Error: name disagrees", content_type="text/plain")
orgsize = tunnelfile.filesize # = os.stat(tfile)[stat.ST_SIZE]
ttext = uploadedfile.read()
# could check that the user and projects agree here
fout = open(tfile, "w")
fout.write(ttext)
fout.close()
# redo its settings of
parsers.surveys.SetTunnelfileInfo(tunnelfile)
tunnelfile.save()
uploadedfile.close()
message = "File size %d overwritten with size %d" % (orgsize, tunnelfile.filesize)
return HttpResponse(content=message, content_type="text/plain")