/
views.py
734 lines (626 loc) · 25.4 KB
/
views.py
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#
# Copyright (c) 2014-2020 University of Dundee.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
from django.http import Http404, HttpResponse, \
JsonResponse
from django.views.decorators.http import require_POST
from django.conf import settings
from django.template import loader
from django.templatetags import static
from datetime import datetime
import traceback
import json
import time
from omeroweb.webgateway.marshal import imageMarshal
from omeroweb.webgateway.views import _get_prepared_image
from omeroweb.webclient.views import run_script
from django.urls import reverse, NoReverseMatch
from omero.rtypes import wrap, rlong, rstring, unwrap
from omero.model import LengthI
from omero.model.enums import UnitsLength
from omero.cmd import ERR, OK
import omero
from omero_marshal import get_encoder
from io import BytesIO
from omeroweb.webclient.decorators import login_required
from .omeroutils import get_timestamps
import logging
try:
from PIL import Image
except ImportError:
try:
import Image
except ImportError:
pass
logger = logging.getLogger(__name__)
JSON_FILEANN_NS = "omero.web.figure.json"
SCRIPT_PATH = "/omero/figure_scripts/Figure_To_Pdf.py"
def get_length_units():
# Create a dict we can use for scalebar unit conversions
unit_symbols = {}
for name in LengthI.SYMBOLS.keys():
if name in ("PIXEL", "REFERENCEFRAME"):
continue
klass = getattr(UnitsLength, name)
unit = LengthI(1, klass)
to_microns = LengthI(unit, UnitsLength.MICROMETER)
unit_symbols[name] = {
'symbol': unit.getSymbol(),
'microns': to_microns.getValue()
}
return unit_symbols
@login_required()
def index(request, file_id=None, conn=None, **kwargs):
"""
Single page 'app' for creating a Figure, allowing you to choose images
and lay them out in canvas by dragging & resizing etc
"""
# test for script to enable/diable export button
script_service = conn.getScriptService()
sid = script_service.getScriptID(SCRIPT_PATH)
export_enabled = sid > 0
user = conn.getUser()
user_full_name = "%s %s" % (user.firstName, user.lastName)
max_w, max_h = conn.getMaxPlaneSize()
max_plane_size = max_w * max_h
length_units = get_length_units()
is_public_user = "false"
if (hasattr(settings, 'PUBLIC_USER')
and settings.PUBLIC_USER == user.getOmeName()):
is_public_user = "true"
# Load the template html and replace OMEROWEB_INDEX
template = loader.get_template("omero_figure/index.html")
html = template.render({}, request)
omeroweb_index = reverse("index")
figure_index = reverse("figure_index")
ping_url = reverse("keepalive_ping")
html = html.replace('const BASE_OMEROWEB_URL = dev_omeroweb_url;',
'const BASE_OMEROWEB_URL = "%s";' % omeroweb_index)
html = html.replace('const APP_ROOT_URL = "";',
'const APP_ROOT_URL = "%s";' % figure_index)
html = html.replace('const USER_ID = 0;', 'const USER_ID = %s' % user.id)
html = html.replace('const PING_URL = "";',
'const PING_URL = "%s";' % ping_url)
html = html.replace('const USER_FULL_NAME = "OME";',
'const USER_FULL_NAME = "%s";' % user_full_name)
html = html.replace('const IS_PUBLIC_USER = false;',
'const IS_PUBLIC_USER = %s;' % is_public_user)
html = html.replace('const MAX_PLANE_SIZE = 10188864;',
'const MAX_PLANE_SIZE = %s;' % max_plane_size)
html = html.replace('const LENGTH_UNITS = LENGTHUNITS;',
'const LENGTH_UNITS = %s;' % json.dumps(length_units))
if export_enabled:
html = html.replace('const EXPORT_ENABLED = false;',
'const EXPORT_ENABLED = true;')
# update links to static files
static_dir = static.static('omero_figure/')
html = html.replace('href="/', 'href="%s' % static_dir)
html = html.replace('src="/', 'src="%s' % static_dir)
html = html.replace('const STATIC_DIR = "";',
'const STATIC_DIR = "%s";' % static_dir[0:-1])
# bootstrap-icons. Use CDN when served by vite, but use static copy
# when served by omero-web
html = html.replace(
"https://cdn.jsdelivr.net/npm/bootstrap-icons@1.9.1/font/",
static_dir)
return HttpResponse(html)
@login_required()
def img_data_json(request, image_id, conn=None, **kwargs):
image = conn.getObject("Image", image_id)
if image is None:
raise Http404("Image not found")
# Test if we have Units support (OMERO 5.1)
px = image.getPrimaryPixels().getPhysicalSizeX()
pix_size_x = str(px) # As string E.g. "0.13262 MICROMETER"
units_support = " " in pix_size_x
rv = imageMarshal(image)
if units_support:
# Add extra parameters with units data
if 'pixel_size' not in rv:
rv['pixel_size'] = {}
# NB ['pixel_size']['x'] will have size in MICROMETER
px = image.getPrimaryPixels().getPhysicalSizeX()
if px is not None:
rv['pixel_size']['valueX'] = px.getValue()
rv['pixel_size']['symbolX'] = px.getSymbol()
rv['pixel_size']['unitX'] = str(px.getUnit())
py = image.getPrimaryPixels().getPhysicalSizeY()
if py is not None:
rv['pixel_size']['valueY'] = py.getValue()
rv['pixel_size']['symbolY'] = py.getSymbol()
rv['pixel_size']['unitY'] = str(py.getUnit())
pz = image.getPrimaryPixels().getPhysicalSizeZ()
if pz is not None:
rv['pixel_size']['valueZ'] = pz.getValue()
rv['pixel_size']['symbolZ'] = pz.getSymbol()
rv['pixel_size']['unitZ'] = str(pz.getUnit())
size_t = image.getSizeT()
time_list = []
if size_t > 1:
time_list = get_timestamps(conn, image)
rv['deltaT'] = time_list
return HttpResponse(json.dumps(rv), content_type='json')
@login_required()
def timestamps(request, conn=None, **kwargs):
iids = request.GET.getlist('image')
data = {}
for iid in iids:
image = conn.getObject('Image', iid)
if image is not None:
data[image.id] = get_timestamps(conn, image)
return JsonResponse(data)
@login_required()
def z_scale(request, conn=None, **kwargs):
iids = request.GET.getlist('image')
data = {}
for iid in iids:
image = conn.getObject('Image', iid)
if image is not None:
pz = image.getPrimaryPixels().getPhysicalSizeZ()
if pz is not None:
data[image.id] = {'valueZ': pz.getValue(),
'symbolZ': pz.getSymbol(),
'unitZ': str(pz.getUnit())}
return JsonResponse(data)
@login_required()
def render_scaled_region(request, iid, z, t, conn=None, **kwargs):
region = request.GET.get('region')
logger.debug("Rendering region: %s, Image: %s" % (region, iid))
x, y, width, height = [float(r) for r in region.split(',')]
max_size = request.GET.get('max_size', 2000)
max_size = int(max_size)
pi = _get_prepared_image(request, iid, conn=conn)
if pi is None:
raise Http404
image, compress_quality = pi
size_x = image.getSizeX()
size_y = image.getSizeY()
scale_levels = image.getZoomLevelScaling()
if scale_levels is None:
# Not a big image - can load at full size
level = None
else:
# Pick zoom such that returned image is below MAX size
max_level = len(scale_levels.keys()) - 1
longest_side = max(width, height)
# start small, and go until we reach target size
zm = max_level
while zm > 0 and scale_levels[zm - 1] * longest_side < max_size:
zm = zm - 1
level = max_level - zm
# We need to use final rendered jpeg coordinates
# Convert from original image coordinates by scaling
scale = scale_levels[zm]
x = int(x * scale)
y = int(y * scale)
width = int(width * scale)
height = int(height * scale)
size_x = int(size_x * scale)
size_y = int(size_y * scale)
canvas = None
# Coordinates below are all final jpeg coordinates & sizes
if x < 0 or y < 0 or (x + width) > size_x or (y + height) > size_y:
# If we're outside the bounds of the image...
# Need to render reduced region and paste on to full size image
canvas = Image.new("RGB", (width, height), (221, 221, 221))
paste_x = 0
paste_y = 0
if x < 0:
paste_x = -x
width = width + x
x = 0
if y < 0:
paste_y = -y
height = height + y
y = 0
# Render the region...
jpeg_data = image.renderJpegRegion(z, t, x, y, width, height, level=level,
compression=compress_quality)
# paste to canvas if needed
if canvas is not None:
i = BytesIO(jpeg_data)
to_paste = Image.open(i)
canvas.paste(to_paste, (paste_x, paste_y))
rv = BytesIO()
canvas.save(rv, 'jpeg', quality=90)
jpeg_data = rv.getvalue()
return HttpResponse(jpeg_data, content_type='image/jpeg')
@login_required()
def save_web_figure(request, conn=None, **kwargs):
"""
Saves 'figureJSON' in POST as an original file. If 'fileId' is specified
in POST, then we update that file. Otherwise create a new one with
name 'figureName' from POST.
"""
update = conn.getUpdateService()
if not request.method == 'POST':
return HttpResponse("Need to use POST")
figure_json = request.POST.get('figureJSON')
if figure_json is None:
return HttpResponse("No 'figureJSON' in POST")
image_ids = []
first_img_id = None
try:
json_data = json.loads(figure_json)
for panel in json_data['panels']:
image_ids.append(panel['imageId'])
if len(image_ids) > 0:
first_img_id = int(image_ids[0])
# remove duplicates
image_ids = list(set(image_ids))
# pretty-print json
figure_json = json.dumps(json_data, sort_keys=True,
indent=2, separators=(',', ': '))
except Exception:
pass
# See https://github.com/will-moore/figure/issues/16
figure_json = figure_json.encode('utf8')
file_id = request.POST.get('fileId')
if 'figureName' in json_data and len(json_data['figureName']) > 0:
figure_name = json_data['figureName']
else:
n = datetime.now()
# time-stamp name by default: WebFigure_2013-10-29_22-43-53.json
figure_name = "Figure_%s-%s-%s_%s-%s-%s.json" % \
(n.year, n.month, n.day, n.hour, n.minute, n.second)
# we store json in description field...
description = {}
if first_img_id is not None:
# We duplicate the figure name here for quicker access when
# listing files
# (use this instead of file name because it supports unicode)
description['name'] = figure_name
description['imageId'] = first_img_id
if 'baseUrl' in panel:
description['baseUrl'] = panel['baseUrl']
desc = json.dumps(description)
if file_id is None:
# Create new file
# Try to set Group context to the same as first image
curr_gid = conn.SERVICE_OPTS.getOmeroGroup()
i = None
if first_img_id:
i = conn.getObject("Image", first_img_id)
if i is not None:
gid = i.getDetails().getGroup().getId()
conn.SERVICE_OPTS.setOmeroGroup(gid)
else:
# Don't leave as -1
conn.SERVICE_OPTS.setOmeroGroup(curr_gid)
file_size = len(figure_json)
f = BytesIO()
f.write(figure_json)
orig_file = conn.createOriginalFileFromFileObj(
f, '', figure_name, file_size, mimetype="application/json")
fa = omero.model.FileAnnotationI()
fa.setFile(omero.model.OriginalFileI(orig_file.getId(), False))
fa.setNs(wrap(JSON_FILEANN_NS))
fa.setDescription(wrap(desc))
fa = update.saveAndReturnObject(fa, conn.SERVICE_OPTS)
file_id = fa.getId().getValue()
else:
# Update existing Original File
fa = conn.getObject("FileAnnotation", file_id)
if fa is None:
return Http404("Couldn't find FileAnnotation of ID: %s" % file_id)
conn.SERVICE_OPTS.setOmeroGroup(fa.getDetails().group.id.val)
# Update description
fa._obj.setDescription(wrap(desc))
update.saveAndReturnObject(fa._obj, conn.SERVICE_OPTS)
orig_file = fa._obj.file
# Update name and size
orig_file.setName(rstring(figure_name))
size = len(figure_json)
orig_file.setSize(rlong(size))
orig_file = update.saveAndReturnObject(
orig_file, conn.SERVICE_OPTS)
# upload file
raw_file_store = conn.createRawFileStore()
raw_file_store.setFileId(orig_file.getId().getValue(),
conn.SERVICE_OPTS)
raw_file_store.write(figure_json, 0, size, conn.SERVICE_OPTS)
raw_file_store.truncate(size, conn.SERVICE_OPTS) # ticket #11751
# Once #11928 is fixed, these last 2 lines can be replaced with
# rawFileStore.close(conn.SERVICE_OPTS)
raw_file_store.save(conn.SERVICE_OPTS)
raw_file_store.close()
# Link file annotation to all images (remove from any others)
link_to_images = False # Disabled for now
if link_to_images:
current_links = conn.getAnnotationLinks("Image", ann_ids=[file_id])
for link in current_links:
if link.getParent().getId().getValue() not in image_ids:
# remove old link
update.deleteObject(link._obj, conn.SERVICE_OPTS)
else:
# we don't need to create links for these
image_ids.remove(link.getParent().getId().getValue())
# create new links if necessary
links = []
if len(image_ids) > 0:
for i in conn.getObjects("Image", image_ids):
if not i.canAnnotate():
continue
link = omero.model.ImageAnnotationLinkI()
link.parent = omero.model.ImageI(i.getId(), False)
link.child = omero.model.FileAnnotationI(file_id, False)
links.append(link)
# Don't want to fail at this point due to strange permissions combo
try:
update.saveArray(links, conn.SERVICE_OPTS)
except Exception:
pass
return HttpResponse(str(file_id))
@login_required()
def load_web_figure(request, file_id, conn=None, **kwargs):
"""
Loads the json stored in the file, identified by file annotation ID
"""
file_ann = conn.getObject("FileAnnotation", file_id)
if file_ann is None:
raise Http404("Figure File-Annotation %s not found" % file_id)
figure_json = b"".join(list(file_ann.getFileInChunks()))
figure_json = figure_json.decode('utf8')
json_file = file_ann.getFile()
owner_id = json_file.getDetails().getOwner().getId()
try:
# parse the json, so we can add info...
json_data = json.loads(figure_json)
json_data['canEdit'] = owner_id == conn.getUserId()
json_data['group'] = {
'id': file_ann.getDetails().group.id.val,
'name': file_ann.getDetails().group.name.val
}
# Figure name may not be populated: check in description...
if 'figureName' not in json_data:
desc = file_ann.getDescription()
description = json.loads(desc)
if 'name' in description:
json_data['figureName'] = description['name']
else:
json_data['figureName'] = json_file.getName()
except ValueError:
# If the json failed to parse, return the string anyway
return HttpResponse(figure_json, content_type='json')
return HttpResponse(json.dumps(json_data), content_type='json')
@login_required(setGroupContext=True)
def make_web_figure(request, conn=None, **kwargs):
"""
Uses the scripting service to generate pdf via json etc in POST data.
Script will show up in the 'Activities' for users to monitor and
download result etc.
"""
if not request.method == 'POST':
return HttpResponse("Need to use POST")
script_service = conn.getScriptService()
sid = script_service.getScriptID(SCRIPT_PATH)
figure_json = request.POST.get('figureJSON')
# export options e.g. "PDF", "PDF_IMAGES"
export_option = request.POST.get('exportOption')
webclient_uri = request.build_absolute_uri(reverse('webindex'))
input_map = {
'Figure_JSON': wrap(figure_json),
'Export_Option': wrap(str(export_option)),
'Webclient_URI': wrap(webclient_uri)}
# If the figure has been saved, construct URL to it.
figure_dict = json.loads(figure_json)
if 'fileId' in figure_dict:
try:
figure_url = reverse('load_figure', args=[figure_dict['fileId']])
figure_url = request.build_absolute_uri(figure_url)
input_map['Figure_URI'] = wrap(figure_url)
except NoReverseMatch:
pass
rsp = run_script(request, conn, sid, input_map, scriptName='Figure.pdf')
return HttpResponse(json.dumps(rsp), content_type='json')
@login_required()
def list_web_figures(request, conn=None, **kwargs):
params = omero.sys.ParametersI()
params.addString('ns', rstring(JSON_FILEANN_NS))
q = """select new map(obj.id as id,
obj.description as desc,
o.id as owner_id,
o.firstName as firstName,
o.lastName as lastName,
e.time as time,
f.name as name,
g.id as group_id,
g.name as group_name,
obj as obj_details_permissions)
from FileAnnotation obj
join obj.details.group as g
join obj.details.owner as o
join obj.details.creationEvent as e
join obj.file.details as p
join obj.file as f where obj.ns=:ns"""
qs = conn.getQueryService()
file_anns = qs.projection(q, params, conn.SERVICE_OPTS)
rsp = []
for file_ann in file_anns:
fa = unwrap(file_ann[0])
date = datetime.fromtimestamp(unwrap(fa['time'])/1000)
first_name = unwrap(fa['firstName'])
last_name = unwrap(fa['lastName'])
fig_file = {
'id': unwrap(fa['id']),
'name': unwrap(fa['name']),
'description': unwrap(fa['desc']),
'ownerFullName': "%s %s" % (first_name, last_name),
'owner': {
'id': fa['owner_id'],
'firstName': fa['firstName'],
'lastName': fa['lastName']
},
'group': {
'id': fa['group_id'],
'name': fa['group_name']
},
'creationDate': time.mktime(date.timetuple()),
'canEdit': fa['obj_details_permissions'].get('canEdit')
}
rsp.append(fig_file)
return HttpResponse(json.dumps(rsp), content_type='application/json')
def default_thumbnail(size=(120, 120)):
""" Provide a placeholder thumbnail. Used in urls.py"""
if isinstance(size, int):
size = (size, size)
if len(size) == 1:
size = (size[0], size[0])
img = Image.new("RGB", size, (238, 238, 238))
f = BytesIO()
img.save(f, "PNG")
f.seek(0)
return f.read()
@login_required()
def delete_web_figure(request, conn=None, **kwargs):
""" POST 'fileId' to delete the FileAnnotation """
if request.method != 'POST':
return HttpResponse("Need to POST 'fileId' to delete")
file_id = request.POST.get('fileId')
conn.deleteObjects("Annotation", [file_id])
return HttpResponse("Deleted OK")
def unit_conversion(request, value, from_unit, to_unit, conn=None, **kwargs):
"""
OMERO 5.1 only: Converts Lengths of value in 'from_unit' to 'to_unit'.
E.g. unit_conversion/1.12/MICROMETER/ANGSTROM/.
Returns result as json with keys of 'value', 'unit' and 'symbol'
"""
error = None
try:
from omero.model.enums import UnitsLength
from_unit = getattr(UnitsLength, str(from_unit))
to_unit = getattr(UnitsLength, str(to_unit))
value = float(value)
except ImportError:
error = ("Failed to import omero.model.enums.UnitsLength."
" Requires OMERO 5.1")
except AttributeError as ex:
error = ex.message
if error:
return HttpResponse(json.dumps({'error': error}), content_type='json')
from_value = omero.model.LengthI(value, from_unit)
to_value = omero.model.LengthI(from_value, to_unit)
rsp = {'value': to_value.getValue(),
'unit': str(to_value.getUnit()),
'symbol': to_value.getSymbol()}
return HttpResponse(json.dumps(rsp), content_type='application/json')
@login_required()
def roi_rectangles(request, image_id, conn=None, **kwargs):
"""
Load ROIs that have Rectangles and marshal with omero_marshal
Returns similar JSON to /api/ rois, with meta.totalCount
Supports pagination with ?offset and ?limit
"""
params = omero.sys.ParametersI()
params.addLong('image_id', image_id)
limit = request.GET.get('limit')
offset = request.GET.get('offset', 0)
if limit is not None:
params.page(int(offset), int(limit))
query = """select roi from Roi roi join fetch
roi.details.owner as owner join fetch roi.details.creationEvent
left outer join fetch roi.shapes as shapes
where roi.image.id = :image_id
and shapes.class = Rectangle
order by roi.id"""
rois = conn.getQueryService().findAllByQuery(
query, params, conn.SERVICE_OPTS)
json_data = []
for roi in rois:
encoder = get_encoder(roi.__class__)
json_data.append(encoder.encode(roi))
count_query = """select count(distinct roi) from Roi roi
left outer join roi.shapes as shapes
where roi.image.id = :image_id
and shapes.class = Rectangle"""
params = omero.sys.ParametersI()
params.addLong('image_id', image_id)
result = conn.getQueryService().projection(count_query, params,
conn.SERVICE_OPTS)
total_count = result[0][0].val
return JsonResponse({'data': json_data,
'meta': {'totalCount': total_count}})
@login_required()
def roi_count(request, image_id, conn=None, **kwargs):
"""
Get the counts of ROIs and Shapes on the image
"""
count_shapes = request.GET.get('shapes', False)
params = omero.sys.ParametersI()
params.addLong('image_id', image_id)
query = 'select count(*) from Roi as roi ' \
'where roi.image.id = :image_id'
count = conn.getQueryService().projection(
query, params, conn.SERVICE_OPTS)
roi_count = count[0][0].getValue()
rv = {'roi': roi_count}
if count_shapes:
query = 'select count(shape) from Shape as shape ' \
'left outer join shape.roi as roi ' \
'where roi.image.id = :imageId'
count = conn.getQueryService().projection(
query, params, conn.SERVICE_OPTS)
shape_count = count[0][0].getValue()
rv['shape'] = shape_count
return HttpResponse(json.dumps(rv), content_type="application/json")
@require_POST
@login_required()
def chgrp(request, conn=None, **kwargs):
group_id = int(request.POST.get("group_id"))
ann_id = int(request.POST.get("ann_id"))
handle = None
rsp = None
rv = {}
try:
handle = conn.chgrpObjects('Annotation', [ann_id], group_id)
conn.c.waitOnCmd(
handle, loops=10, ms=500,
failonerror=True, failontimeout=False, closehandle=False)
rsp = handle.getResponse()
except Exception:
rv['error'] = traceback.format_exc()
finally:
if handle is not None:
handle.close()
if isinstance(rsp, OK):
rv['success'] = True
elif isinstance(rsp, ERR):
rv['name'] = rsp.name,
params = ["%s: %s" % (k, v) for k, v in rsp.parameters.items()]
rv['parameters'] = ", ".join(params)
rv['error'] = "%s %s" % (rsp.name, ", ".join(params))
return JsonResponse(rv)
@login_required()
def images_details(request, conn=None, **kwargs):
imgs = request.GET.get('image', '')
img_ids = [int(i) for i in imgs.split(',') if len(i) > 0]
data = []
for image in conn.getObjects('Image', img_ids):
details = image.getDetails()
data.append({
'id': image.id,
'name': image.name,
'group': {
'id': details.group.id.val,
'name': details.group.name.val
},
'owner': {
'id': details.owner.id.val,
'firstName': details.owner.firstName.val,
'lastName': details.owner.lastName.val
}
})
return JsonResponse({'data': data})