split surveys->scans + drawings

core/views/scans.py

@@ -0,0 +1,47 @@
+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
+
+from troggle.core.models.survex import Wallet, SingleScan
+from troggle.core.views.expo import getmimetype
+#import parsers.surveys
+
+'''one of these views serves 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 singlewallet(request, path):
+    #print [ s.walletname  for s in Wallet.objects.all() ]
+    try:
+        wallet = Wallet.objects.get(walletname=urlunquote(path))  
+        return render(request, 'wallet.html', { 'wallet':wallet, 'settings': settings })
+    except:
+        message = f'Scan folder error or not found \'{path}\' .'
+        return render(request, 'errors/generic.html', {'message': message})   
+
+def scansingle(request, path, file):
+    '''sends a single binary file to the user for display - browser decides how using mimetype
+    '''
+    try:
+        wallet = Wallet.objects.get(walletname=urlunquote(path)) 
+        singlescan = SingleScan.objects.get(wallet=wallet, name=file)
+        # print(" - scansingle {}:{}:{}:".format(path, file, getmimetype(file)))
+        return HttpResponse(content=open(singlescan.ffile,"rb"), content_type=getmimetype(file)) # any type of image
+    except:
+        message = f'Scan folder or scan item error or not found \'{path}\'  and \'{file}\'.'
+        return render(request, 'errors/generic.html', {'message': message})   
+
+
+def allwallets(request):
+    manywallets = Wallet.objects.all()
+    return render(request, 'manywallets.html', { 'manywallets':manywallets, 'settings': settings })