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check file contents; work with file extensions

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This commit is contained in:
Jakob Ketterl 2021-02-11 00:20:17 +01:00
parent 64f827d235
commit 0fd172edc3
4 changed files with 51 additions and 25 deletions
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4
htdocs/lib/settings/ImageUpload.js
View File

@ -24,8 +24,8 @@ $.fn.imageUpload = function() {
processData: false,
contentType: 'application/octet-stream',
}).done(function(data){
$input.val(data.uuid);
$img.prop('src', "/imageupload?id=" + id + "&uuid=" + data.uuid);
$input.val(data.file);
$img.prop('src', '/imageupload?file=' + data.file);
}).always(function(){
$uploadButton.prop('disabled', false);
});

7
owrx/controllers/assets.py
View File

@ -78,7 +78,7 @@ class AssetsController(GzipMixin, ModificationAwareController, metaclass=ABCMeta
f.close()
if content_type is None:
(content_type, encoding) = mimetypes.MimeTypes().guess_type(self.getFilePath(file))
(content_type, encoding) = mimetypes.guess_type(self.getFilePath(file))
self.send_response(data, content_type=content_type, last_modified=modified, max_age=3600)
except FileNotFoundError:
self.send_response("file not found", code=404)
@ -96,7 +96,8 @@ class OwrxAssetsController(AssetsController):
}
if file in mappedFiles and ("mapped" not in self.request.query or self.request.query["mapped"][0] != "false"):
config = CoreConfig()
user_file = config.get_data_directory() + "/" + mappedFiles[file]
for ext in ["png", "jpg"]:
user_file = "{}/{}.{}".format(config.get_data_directory(), mappedFiles[file], ext)
if os.path.exists(user_file) and os.path.isfile(user_file):
return user_file
return pkg_resources.resource_filename("htdocs", file)
@ -168,7 +169,7 @@ class CompiledAssetsController(GzipMixin, ModificationAwareController):
contents = [self.getContents(f) for f in files]
(content_type, encoding) = mimetypes.MimeTypes().guess_type(profileName)
(content_type, encoding) = mimetypes.guess_type(profileName)
self.send_response("\n".join(contents), content_type=content_type, last_modified=modified, max_age=3600)
def getContents(self, file):

41
owrx/controllers/imageupload.py
View File

@ -8,28 +8,43 @@ import json
class ImageUploadController(AuthorizationMixin, AssetsController):
def __init__(self, handler, request, options):
super().__init__(handler, request, options)
self.uuid = request.query["uuid"][0] if "uuid" in request.query else None
self.id = request.query["id"][0] if "id" in request.query else None
self.file = request.query["file"][0] if "file" in request.query else None
def getFilePath(self, file=None):
if self.uuid is None:
raise FileNotFoundError("missing uuid")
if self.id is None:
raise FileNotFoundError("missing id")
return "{tmp}/{file}-{uuid}".format(
if self.file is None:
raise FileNotFoundError("missing filename")
return "{tmp}/{file}".format(
tmp=CoreConfig().get_temporary_directory(),
file=self.id,
uuid=self.uuid,
file=self.file
)
def indexAction(self):
self.serve_file(None)
def _is_png(self, contents):
return contents[0:8] == bytes([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A])
def _is_jpg(self, contents):
return contents[0:3] == bytes([0xFF, 0xD8, 0xFF])
def processImage(self):
self.uuid = uuid.uuid4().hex
if "id" not in self.request.query:
self.send_response("{}", content_type="application/json", code=400)
# TODO: limit file size
# TODO: check image mime type, if possible
contents = self.get_body()
with open(self.getFilePath(), 'wb') as f:
filetype = None
if self._is_png(contents):
filetype = "png"
if self._is_jpg(contents):
filetype = "jpg"
if filetype is None:
self.send_response("{}", content_type="application/json", code=400)
else:
self.file = "{id}-{uuid}.{ext}".format(
id=self.request.query["id"][0],
uuid=uuid.uuid4().hex,
ext=filetype,
)
with open(self.getFilePath(), "wb") as f:
f.write(contents)
self.send_response(json.dumps({"uuid": self.uuid}), content_type="application/json")
self.send_response(json.dumps({"file": self.file}), content_type="application/json")

16
owrx/controllers/settings.py
View File

@ -374,11 +374,21 @@ class GeneralSettingsController(AuthorizationMixin, WebpageController):
def handle_image(self, data, image_id):
if image_id in data:
config = CoreConfig()
data_file = config.get_data_directory() + "/" + image_id
if data[image_id] == "restore":
os.unlink(data_file)
# remove all possible file extensions
for ext in ["png", "jpg"]:
try:
os.unlink("{}/{}.{}".format(config.get_data_directory(), image_id, ext))
except FileNotFoundError:
pass
elif data[image_id]:
temporary_file = "{}/{}-{}".format(config.get_temporary_directory(), image_id, data[image_id])
if not data[image_id].startswith(image_id):
logger.warning("invalid file name: %s", data[image_id])
else:
# get file extension (luckily, all options are three characters long)
ext = data[image_id][-3:]
data_file = "{}/{}.{}".format(config.get_data_directory(), image_id, ext)
temporary_file = "{}/{}".format(config.get_temporary_directory(), data[image_id])
shutil.copy(temporary_file, data_file)
del data[image_id]
# remove any accumulated temporary files on save