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troggle/core/views/survex.py

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Python
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import datetime
import difflib
import os
import re
import socket
from pathlib import Path
from django import forms
from django.core.exceptions import MultipleObjectsReturned, ObjectDoesNotExist
from django.http import Http404, HttpResponse, HttpResponseRedirect
from django.shortcuts import render
from django.template.context_processors import csrf
from django.views.decorators.csrf import ensure_csrf_cookie
import parsers.survex
import troggle.settings as settings
from troggle.core.models.caves import Cave
from troggle.core.models.logbooks import LogbookEntry, PersonTrip
from troggle.core.models.survex import (SurvexBlock, SurvexDirectory,
SurvexFile, SurvexPersonRole)
from troggle.core.models.troggle import Expedition, Person, PersonExpedition
from troggle.core.utils import WriteAndCommitError, only_commit
from troggle.parsers.people import GetPersonExpeditionNameLookup
'''Everything that views survexfiles
but also displays data on a cave or caves when there is ambiguity
'''
todo='''survexcavesingle is not properly producing any result for Homecoming, 1626-359, 2018-dm-07
even though there are dozens of surveys.
'''
survexdatasetpath = Path(settings.SURVEX_DATA)
survextemplatefile = """; *** THIS IS A TEMPLATE FILE NOT WHAT YOU MIGHT BE EXPECTING ***
*** DO NOT SAVE THIS FILE WITHOUT RENAMING IT !! ***
;[Stuff in square brackets is example text to be replaced with real data,
; removing the square brackets]
*begin [surveyname]
; stations linked into other surveys (or likely to)
*export [1 8 12 34]
; Cave:
; Area in cave/QM:
*title ""
*date [2040.07.04] ; <-- CHANGE THIS DATE
*team Insts [Fred Fossa]
*team Notes [Brenda Badger]
*team Pics [Luke Lynx]
*team Tape [Albert Aadvark]
*instrument [SAP #+Laser Tape/DistoX/Compass # ; Clino #]
; Calibration: [Where, readings]
*ref [2040#00] ; <-- CHANGE THIS TOO
; the #number is on the clear pocket containing the original notes
; if using a tape:
*calibrate tape +0.0 ; +ve if tape was too short, -ve if too long
; Centreline data
*data normal from to length bearing gradient ignoreall
[ 1 2 5.57 034.5 -12.8 ]
;-----------
;recorded station details (leave commented out)
;(NP=Nail Polish, LHW/RHW=Left/Right Hand Wall)
;Station Left Right Up Down Description
;[Red] nail varnish markings
[;1 0.8 0 5.3 1.6 ; NP on boulder. pt 23 on foo survey ]
[;2 0.3 1.2 6 1.2 ; NP '2' LHW ]
[;3 1.3 0 3.4 0.2 ; Rock on floor - not refindable ]
;LRUDs arranged into passage tubes
;new *data command for each 'passage',
;repeat stations and adjust numbers as needed
*data passage station left right up down
;[ 1 0.8 0 5.3 1.6 ]
;[ 2 0.3 1.2 6 1.2 ]
*data passage station left right up down
;[ 1 1.3 1.5 5.3 1.6 ]
;[ 3 2.4 0 3.4 0.2 ]
;-----------
;Question Mark List ;(leave commented-out)
; The nearest-station is the name of the survey and station which are nearest to
; the QM. The resolution-station is either '-' to indicate that the QM hasn't
; been checked; or the name of the survey and station which push that QM. If a
; QM doesn't go anywhere, set the resolution-station to be the same as the
; nearest-station. Include any relevant details of how to find or push the QM in
; the textual description.
;Serial number grade(A/B/C/X) nearest-station resolution-station description
;[ QM1 A surveyname.3 - description of QM ]
;[ QM2 B surveyname.5 - description of QM ]
;------------
;Cave description ;(leave commented-out)
;freeform text describing this section of the cave
*end [surveyname]
"""
class SvxForm(forms.Form):
'''Two-pane form, upper half is the raw survex file, lower half (with green background)
is the output of running 'cavern' on the survex file.
'''
dirname = forms.CharField(widget=forms.TextInput(attrs={"readonly":True}))
filename = forms.CharField(widget=forms.TextInput(attrs={"readonly":True}))
datetime = forms.DateTimeField(widget=forms.TextInput(attrs={"readonly":True}))
outputtype = forms.CharField(widget=forms.TextInput(attrs={"readonly":True}))
code = forms.CharField(widget=forms.Textarea(attrs={"cols":140, "rows":36}))
template = False
def GetDiscCode(self):
fname = survexdatasetpath / (self.data['filename'] + ".svx")
if not fname.is_file():
print(">>> >>> WARNING - svx file not found, showing TEMPLATE SVX",fname, flush=True)
self.template = True
return survextemplatefile
try:
fin = open(fname, "r",encoding='utf8',newline='')
svxtext = fin.read()
fin.close()
except:
# hack. Replace this with something better.
fin = open(fname, "r",encoding='iso-8859-1',newline='')
svxtext = fin.read()
fin.close()
return svxtext
def DiffCode(self, rcode):
code = self.GetDiscCode()
difftext = difflib.unified_diff(code.splitlines(), rcode.splitlines())
difflist = [ diffline.strip() for diffline in difftext if not re.match(r"\s*$", diffline) ]
return difflist
def SaveCode(self, rcode):
fname = survexdatasetpath / (self.data['filename'] + ".svx")
if not os.path.isfile(fname):
if re.search(r"\[|\]", rcode):
return "Error: remove all []s from the text. They are only template guidance."
mbeginend = re.search(r"(?s)\*begin\s+(\w+).*?\*end\s+(\w+)", rcode)
if not mbeginend:
return "Error: no begin/end block here"
if mbeginend.group(1) != mbeginend.group(2):
return "Error: mismatching begin/end labels"
# Make this create new survex folders if needed
try:
fout = open(fname, "w", encoding='utf8',newline='\n')
except FileNotFoundError:
pth = os.path.dirname(self.data['filename'])
newpath = survexdatasetpath / pth
if not os.path.exists(newpath):
os.makedirs(newpath)
fout = open(fname, "w", encoding='utf8',newline='\n')
except PermissionError:
return "CANNOT save this file.\nPERMISSIONS incorrectly set on server for this file. Ask a nerd to fix this."
# javascript seems to insert CRLF on WSL1 whatever you say. So fix that:
res = fout.write(rcode.replace("\r",""))
res = fout.write("\n")
fout.close()
if socket.gethostname() == "expo":
comment = f"Online survex edit: {self.data['filename']}.svx"
else:
comment = f"Online survex edit: {self.data['filename']}.svx on dev machine '{socket.gethostname()}' "
only_commit(fname, comment)
return "SAVED and committed to git"
def Process(self):
print(">>>>....\n....Processing\n")
froox = os.fspath(survexdatasetpath / (self.data['filename'] + ".svx"))
froog = os.fspath(survexdatasetpath / (self.data['filename'] + ".log"))
cwd = os.getcwd()
os.chdir(os.path.split(froox)[0])
os.system(settings.CAVERN + " --log " + froox )
os.chdir(cwd)
# Update this to use the new syntax..
# sp = subprocess.run([settings.CAVERN, "--log", f'--output={outputdir}', f'{fullpath}.svx'],
# capture_output=True, check=False, text=True)
# if sp.returncode != 0:
# message = f' ! Error running {settings.CAVERN}: {fullpath}'
# DataIssue.objects.create(parser='entrances', message=message)
# print(message)
# print(f'stderr:\n\n' + str(sp.stderr) + '\n\n' + str(sp.stdout) + '\n\nreturn code: ' + str(sp.returncode))
filepatherr = Path(survexdatasetpath / str(self.data['filename'] + ".err"))
if filepatherr.is_file():
if filepatherr.stat().st_size == 0:
filepatherr.unlink() # delete empty closure error file
fin = open(froog, "r",encoding='utf8')
log = fin.read()
fin.close()
#log = re.sub("(?s).*?(Survey contains)", "\\1", log) # this omits any ERROR MESSAGES ! Don't do it.
for s in ["Removing trailing traverses...\n\n",
"Concatenating traverses...\n\n"
"Simplifying network...\n\n",
"Calculating network...\n\n",
"Calculating traverses...\n\n",
"Calculating trailing traverses...\n\n",
"Calculating statistics...\n\n"]:
log = log.replace(s,"")
return log
@ensure_csrf_cookie
def svx(request, survex_file):
'''Displays a single survex file in an textarea window (using a javascript online editor to enable
editing) with buttons which allow SAVE, check for DIFFerences from saved, and RUN (which runs the
cavern executable and displays the output below the main textarea).
Requires CSRF to be set up correct;ly, and requires permission to write to the filesystem.
'''
warning = False
# get the basic data from the file given in the URL
dirname = os.path.split(survex_file)[0]
dirname += "/"
nowtime = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
outputtype = "normal"
form = SvxForm({'filename':survex_file, 'dirname':dirname, 'datetime':nowtime, 'outputtype':outputtype})
# if the form has been returned
difflist = [ ]
logmessage = ""
message = ""
if request.method == 'POST': # If the form has been submitted...
rform = SvxForm(request.POST) #
if rform.is_valid(): # All validation rules pass (how do we check it against the filename and users?)
rcode = rform.cleaned_data['code']
outputtype = rform.cleaned_data['outputtype']
difflist = form.DiffCode(rcode)
#print(">>>> ", rform.data)
if "revert" in rform.data:
pass
if "process" in rform.data:
if not difflist:
logmessage = form.Process()
if logmessage:
message = f"OUTPUT FROM PROCESSING\n{logmessage}"
else:
message = "SAVE FILE FIRST"
form.data['code'] = rcode
if "save" in rform.data:
if request.user.is_authenticated:
message = form.SaveCode(rcode)
else:
message = "You do not have authority to save this file. Please log in."
if message != "SAVED":
form.data['code'] = rcode
if "diff" in rform.data:
print("Differences: ")
form.data['code'] = rcode
#process(survex_file)
if 'code' not in form.data:
form.data['code'] = form.GetDiscCode()
if form.template:
warning = True
if not difflist:
difflist.append("No differences - file was saved")
if message:
difflist.insert(0, message)
#print [ form.data['code'] ]
svxincludes = re.findall(r'(?i)\*include\s+(\S+)', form.data['code'] or "")
vmap = {'settings': settings,
'warning': warning,
'has_3d': (Path(survexdatasetpath) / Path(survex_file + ".3d")).is_file(),
'title': survex_file,
'svxincludes': svxincludes,
'difflist': difflist,
'logmessage':logmessage,
'form':form}
# vmap.update(csrf(request)) # this now refreshes to the wrong value, now that we user render(request,
if outputtype == "ajax":
return render(request, 'svxfiledifflistonly.html', vmap)
return render(request, 'svxfile.html', vmap)
# The cavern running function. This is NOT where it is run inside the form! see SvxForm.Process() for that
def process(survex_file):
'''This runs cavern only where a .3d, .log or .err file is requested.
'''
filepathsvx = survexdatasetpath / str( survex_file + ".svx")
cwd = os.getcwd()
os.chdir(os.path.split(os.fspath(survexdatasetpath / survex_file))[0])
os.system(settings.CAVERN + " --log " + str(filepathsvx))
os.chdir(cwd)
# Update this to use the new syntax..
# sp = subprocess.run([settings.CAVERN, "--log", f'--output={outputdir}', f'{fullpath}.svx'],
# capture_output=True, check=False, text=True)
# if sp.returncode != 0:
# message = f' ! Error running {settings.CAVERN}: {fullpath}'
# DataIssue.objects.create(parser='entrances', message=message)
# print(message)
# print(f'stderr:\n\n' + str(sp.stderr) + '\n\n' + str(sp.stdout) + '\n\nreturn code: ' + str(sp.returncode))
filepatherr = Path(survexdatasetpath / str(survex_file + ".err"))
if filepatherr.is_file():
if filepatherr.stat().st_size == 0:
filepatherr.unlink() # delete empty closure error file
def threed(request, survex_file):
filepath3d = survexdatasetpath / str(survex_file + ".3d")
filepathlog = survexdatasetpath / str(survex_file + ".log")
if filepath3d.is_file():
threed = open(filepath3d, "rb")
return HttpResponse(threed, content_type="application/x-aven")
else:
process(survex_file) # should not need to do this if it already exists, as it should.
log = open(survexdatasetpath / str(survex_file + ".log"), "r",encoding='utf-8')
return HttpResponse(log, content_type="text")
def svxlog(request, survex_file):
'''Used for rendering .log files from survex outputtype'''
filepathlog = survexdatasetpath / str(survex_file + ".log")
if not filepathlog.is_file():
process(survex_file)
log = open(filepathlog, "r")
return HttpResponse(log,content_type="text/plain; charset=utf-8") #default: "text/html; charset=utf-8"
def err(request, survex_file):
filepatherr = survexdatasetpath / str(survex_file + ".err")
if not filepatherr.is_file(): # probably not there because it was empty, but re-run anyway
process(survex_file)
process(survex_file)
if filepatherr.is_file():
err = open(filepatherr, "r")
return HttpResponse(err, content_type="text/plain; charset=utf-8")
else:
return HttpResponse(f'No closure errors. \nEmpty {filepatherr} file produced. \nSee the .log file.', content_type="text/plain; charset=utf-8")
def identifycavedircontents(gcavedir):
# find the primary survex file in each cave directory
# this should be in a configuration, not buried in the code...
name = os.path.split(gcavedir)[1]
subdirs = [ ]
subsvx = [ ]
primesvx = None
for f in os.listdir(gcavedir): # These may get outdated as data gets tidied up. This should not be in the code!
if name == "204" and (f in ["skel.svx", "template.svx", "204withents.svx"]):
pass
elif name == "136" and (f in ["136-noents.svx"]):
pass
elif name == "115" and (f in ["115cufix.svx", "115fix.svx"]):
pass
elif os.path.isdir(os.path.join(gcavedir, f)):
if f[0] != ".":
subdirs.append(f)
elif f[-4:] == ".svx":
nf = f[:-4]
if nf.lower() == name.lower() or nf[:3] == "all" or (name, nf) in [("resurvey2005", "145-2005"), ("cucc", "cu115")]:
if primesvx:
if nf[:3] == "all":
#assert primesvx[:3] != "all", (name, nf, primesvx, gcavedir, subsvx)
primesvx = nf
else:
#assert primesvx[:3] == "all", (name, nf, primesvx, gcavedir, subsvx)
pass
else:
primesvx = nf
else:
subsvx.append(nf)
else:
pass
#assert re.match(".*?(?:.3d|.log|.err|.txt|.tmp|.diff|.e?spec|~)$", f), (gcavedir, f)
subsvx.sort()
#assert primesvx, (gcavedir, subsvx)
if primesvx:
subsvx.insert(0, primesvx)
return subdirs, subsvx
def get_survexareapath(area):
return survexdatasetpath / str("caves-" + area)
# direct local non-database browsing through the svx file repositories
# every time the page is viewed! Should cache this.
def survexcaveslist(request):
'''This reads the entire list of caves in the Loser repo directory and produces a complete report.
It can find caves which have not yet been properly registered in the system by Databasereset.py because
someone may have uploaded the survex files without doing the rest of the integration process.
'''
# TO DO - filter out the non-public caves from display UNLESS LOGGED IN
# This is very impenetrable code, original from Aaron Curtis I think.
onefilecaves = [ ]
multifilecaves = [ ]
subdircaves = [ ]
fnumlist = [ ]
for area in ["1623", "1626", "1624", "1627"]:
cavesdir = get_survexareapath(area)
arealist = sorted([ (area, -int(re.match(r"\d*", f).group(0) or "0"), f) for f in os.listdir(cavesdir) ])
fnumlist += arealist
#print(fnumlist)
# go through the list and identify the contents of each cave directory
for area, num, cavedir in fnumlist:
# these have sub dirs /cucc/ /arge/ /old/ but that is no reason to hide them in this webpage
# so these are now treated the same as 142 and 113 which also have a /cucc/ sub dir
#if cavedir in ["144", "40"]:
# continue
# This all assumes that the first .svx file has the same name as the cave name,
# which usually but not always true. e.g. caves-1623/78/allkaese.svx not caves-1623/78/78.svx
# which is why we now also pass through the cavedir
# Still fails for loutitohoehle etc even though this is set correctly when the pending cave is created
cavesdir = get_survexareapath(area)
gcavedir = os.path.join(cavesdir, cavedir)
if os.path.isdir(gcavedir) and cavedir[0] != ".":
subdirs, subsvx = identifycavedircontents(gcavedir)
caveid = check_cave_registered(area, cavedir) # should do this only once per database load or it will be slow
survdirobj = [ ]
for lsubsvx in subsvx:
survdirobj.append(("caves-" +area+ "/" +cavedir+"/"+lsubsvx, lsubsvx))
# caves with subdirectories
if subdirs:
subsurvdirs = [ ]
for subdir in subdirs:
dsubdirs, dsubsvx = identifycavedircontents(os.path.join(gcavedir, subdir))
# assert not dsubdirs # handle case of empty sub directory
lsurvdirobj = [ ]
for lsubsvx in dsubsvx:
lsurvdirobj.append(("caves-" +area+ "/" +cavedir+"/"+subdir+"/"+lsubsvx, lsubsvx))
if len(dsubsvx) >= 1:
subsurvdirs.append((subdir,lsurvdirobj[0], lsurvdirobj[0:])) # list now includes the first item too
subdircaves.append((cavedir, (survdirobj[0], survdirobj[1:]), subsurvdirs))
# multifile caves
elif len(survdirobj) > 1:
multifilecaves.append((survdirobj[0], cavedir, survdirobj[1:]))
# single file caves
elif len(survdirobj) == 1:
onefilecaves.append(survdirobj[0])
return render(request, 'svxfilecavelist.html', {'settings': settings, "onefilecaves":onefilecaves, "multifilecaves":multifilecaves, "subdircaves":subdircaves })
def survexcavesingle(request, survex_cave):
'''parsing all the survex files of a single cave and showing that it's consistent and can find all
the files and people. Should explicitly fix the kataster number thing.
kataster numbers are not unique across areas. This used to be a db constraint but we need to manage
this ourselves as we don't want the parser aborting with an error message.
Should use getCave() from models_caves
'''
sc = survex_cave
try:
cave = Cave.objects.get(kataster_number=sc) # This may not be unique.
return render(request, 'svxcavesingle.html', {'settings': settings, "cave":cave })
except ObjectDoesNotExist:
# can get here if the survex file is in a directory labelled with unofficial number not kataster number.
# maybe - and _ mixed up, or CUCC-2017- instead of 2017-CUCC-, or CUCC2015DL01 . Let's not get carried away..
# or it might be an exact search for a specific survefile but just missing the '.svx.
if (Path(survexdatasetpath) / Path(survex_cave + ".svx")).is_file():
return svx(request, survex_cave)
for unoff in [sc, sc.replace('-','_'), sc.replace('_','-'), sc.replace('-',''), sc.replace('_','')]:
try:
cave = Cave.objects.get(unofficial_number=unoff) # return on first one we find
return render(request, 'svxcavesingle.html', {'settings': settings, "cave":cave })
except ObjectDoesNotExist:
continue # next attempt in for loop
return render(request, 'errors/svxcavesingle404.html', {'settings': settings, "cave":sc })
except MultipleObjectsReturned:
caves = Cave.objects.filter(kataster_number=survex_cave)
return render(request, 'svxcaveseveral.html', {'settings': settings, "caves":caves })
except:
return render(request, 'errors/svxcavesingle404.html', {'settings': settings, "cave":sc })
def check_cave_registered(area, survex_cave):
'''Checks whether a cave has been properly registered when it is found in the Loser repo
This should really be called by Databasereset not here in a view
Currently Caves are only registered if they are listed in :expoweb: settings.CAVEDESCRIPTIONS
so we need to add in any more here.
This function runs but does not seem to be used?!
A serious bodge anyway.
'''
try:
cave = Cave.objects.get(kataster_number=survex_cave)
return str(cave)
except MultipleObjectsReturned:
caves = Cave.objects.filter(kataster_number=survex_cave)
for c in caves:
if str(c) == area + "-" + survex_cave :
return str(c) # just get the first that matches
return None # many returned but none in correct area
except ObjectDoesNotExist:
pass
try:
cave = Cave.objects.get(unofficial_number=survex_cave) # should be unique!
if cave.kataster_number:
return str(cave)
else:
return None
except ObjectDoesNotExist:
pass
return None
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