I'm trying to save files sent from C++ code(not by HTML)
But I do not know how to write the script to parse sent data and save it
C++ code works fine(from wireshark captured packet)
from Bottle tutorial: how do I edit it?
category = request.forms.get('category')
upload = request.files.get('upload')
thanks!
update:
I found that request.files works
files = request.files
for name, fobj in files.iteritems():
fobj.save(some_path)
If you are just sending the raw file in the HTTP request, access it with request.body.
http://bottlepy.org/docs/dev/api.html#bottle.BaseRequest.body
This is what I ended up doing:
from bottle import FileUpload
uploaded_file = FileUpload(request.body, None, filename='some_filename')
uploaded_file.save() # implement conflict resolution here, if needed
Related
I'm trying to send a file from my Flask app through send_file() or send_from_directory() without success.
The request returns a response with status_code=200 but no file is being downloaded. I have verified the functions work as they return errors when the file or directory does not exist
This is the last line of my function. It handles POST requests and should return a file after it has been saved.
# openpyxl stuff above
wb.save(app.instance_path + '/path/to/file/spreadsheet.xlsx')
return send_file(current_dir + '/path/to/file/spreadsheet.xlsx')
This is what is returned from the server
127.0.0.1 - - [21/Apr/2019 20:05:26] "POST /api/admin/export_bookings HTTP/1.1" 200 -
I verified that the file is indeed being created and saved, and I have verified that the above last line returns an error if the path is wrong or if the file doesn't exist.
Why is this happening?
Your form has enctype = "multipart/form-data"?
Did you check if the file exists in the request?
Figured it out. I am using axios to handle my POST requests. It seems javascript POST requests do not have the ability to return files.
I have found a workaround by returning the '/path/to/file/spreadsheet.xlsx' to my javascript as JSON and calling window.open() with that path.
I then only had to create a standard Flask GET route #bp.route('/path/to/file/<filename>) that returns the file from the directory by the url using that send_file() function.
I also came across this kind of problem.
I am also using flask and send_file() library to send the file to UI for a user to download.
I was just sending file using flask as below.
#app.run('/download_any_file',methods=['POST'])
def download():
path='folder_path_where_file_exist'
filename='abcde.xlsx' # i am getting this filename from UI
full_path=path+'/'+ filename
return send_file(full_path,as_attachment=True)
I was getting some response from this API but UI was not able to consume this response for some reason.
added a snip of Response I was getting with above code:
After going through documentation https://tedboy.github.io/flask/generated/flask.send_file.html, i found that one parameter 'mimetype' for excel file(.xlsx) or (.xls) should be passed as a parameter. Note: mimetype for (.xlsx and .xls) are different plz follow this link to find mimetype for different files
https://learn.microsoft.com/en-us/archive/blogs/vsofficedeveloper/office-2007-file-format-mime-types-for-http-content-streaming-2.
I changed my code finally as below:
#app.run('/download_any_file',methods=['POST'])
def download():
path='folder_path_where_file_exist'
filename='abcde.xlsx' # i am getting this filename from UI
full_path=path+'/'+ filename
return send_file(full_path,as_attachment=True,mimetype='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')
Now same mime-type should be used in the UI side to catch and decode the response and put it in excel file to download.
In UI contentType should be the same mimetype which is used in flask send_file()
contentType = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet';
This way you can download an excel file.
I want the user to be able to download a txt file that contains results of a sql query. I've seen answers speaking about using send_file or Response but all of those answers seem to require that I have the file stored?
Currently I have:
#RateRevisionEndorsements_blueprint.route('/_getEndorsements', methods = ['GET'])
def get_endorsements():
guid = request.args.get('guid')
client = Client()
# Save query results
result = client.getEndorsementFile(bookGuid = guid)
with open('tesult.txt', 'w') as r:
for i in result:
r.write(i)
return send_file("result.txt", as_attachment=True)
The button to generate this route works and I have no issue receiving the query results (currently stored as a list but I can make it whatever works best), but I receive the error FileNotFoundError: [Errno 2] No such file or directory: 'C"\\..\\app\\result.txt'
Which makes me think that I need it to have stored somewhere on the server to pull from.
Just send the data as a streaming response. Make sure to set the proper mime type so that the browser will initiate a download.
Exactly send_file sent files that are stored.
Sent it with the
Respone(file,mimetype=“txt/plain”)
I'm very very new to python. I have a HTML code with POST method to upload a file, then I have python code to receive the file and save it to a FTP server. My python code so far is :
berkas = request.FILES['file']
filename = "test_send_file.jpg"
upload_folder = '/var/www/uploads/target_folder/'
handle_uploaded_file(join(upload_folder, filename), berkas)
Using those codes I got Permission Denied when uploading the file.
I know the missing part is where I have to set FTP server address and it's username & password, but I don't know how to that.
So, how to do it ?
Or, is there easier way to solve my "POST upload then save to FTP" problem ?
Thank you before.
first of all sorry for my English, it's not my mother tongue. I'm writing a XML parser in python 2.7. There are a links for images, that are downloading and saving into DB, it works fine with http, but I need to download them from ftp server.
Here is function that is calling from parser:
q=sa_web_images.objects.create(
web_image_url=iphoto,
web_item_id=wi_id,
non_repeat=non_repeat
)
q.get_remote_image()
Where 'iphoto' is a link, for example: ftp://example.com/image.jpg.
And here is function that save it into DB:
def get_remote_image(self):
if self.web_image_url and not self.web_image:
result = urllib.urlretrieve(self.web_image_url)
self.web_image.save(
os.path.basename(self.web_image_url),
File(open(result[0]))
)
self.save()
I know username and password for ftp access, but I don't know, how should I insert them into code, can someone help me please? Thanks.
username and password can be supplied to urllib by specifying them in the url, like for example
result = urllib.urlretrieve("ftp://user:password#example.com/image.jpg")
All the examples I can find on google endpoint api (e.g., tic-tac-toe sample) show strings, integers, enums, etc fields. None of the examples say anything about how to specify document (e.g., image or zip files) uploads or downloads using the API. Is this not possible?
If this is possible, can anyone share a code snippet on how to define google endpoint api on the server to allow downloads and uploads of files? For example, is there a way to set HTTPResponse headers to specify that an endpoint response will serve a zip file? How do we include the zip file in the response?
An example with python or php would be appreciated. If anyone from the endpoints-proto-datastore team is watching this discussion, please say whether or not file downloads are supported in endpoints at the moment. We hate to waste our time trying to figure this out if it is simply impossible. Thanks.
We are seeking a complete example for upload and download. We need to store the key for the uploaded file in our database during upload and retrieve it for download. The client app sends a token that the API needs to use to figure out what file to download. Hence, we would need to store the blob key generated during the upload process in our database. Our database would have the mapping between the token and the blob file's key.
class BlobDataFile(models.Model):
data_code = models.CharField(max_length=10) # Key used by client app to request file
blob_key = models.CharField()
By the way, our app is written in Django 1.7 with a mysql (modeled with models.Model) database. It is infuriating that all the examples for Google App Engine upload I can find is written for a standalone webapp Handlers (no urls.py/views.py solutions could be found anywhere). Hence, building a standalone uploader is as much of a challenge as writing the API code. If your solution has full urls.py/views.py example for uploading files and saving the blob_key in our BlobDataFile, it would be good enough for us.
f you use the blobstore use the get_serving_url function to read the images from url in the client, or use the messages.ByteField in the ResourceContainer and serialize the image with base64.b64decode
#the returned class
class Img(messages.Message):
message = messages.BytesField (1)
#The api class
#endpoints.api(name='helloImg', version='v1')
class HelloImgApi(remote.Service):
ID_RESOURCE = endpoints.ResourceContainer(
message_types.VoidMessage,
id=messages.StringField(1, variant=messages.Variant.STRING))
#endpoints.method(ID_RESOURCE, Img,
path='serveimage/{id}', http_method='GET', #ID is the blobstore key
name='greetings.getImage')
def image_get(self, request):
try:
blob_reader = blobstore.BlobReader(blob_key)
value = blob_reader.read()
return Img(message=value)
except:
raise endpoints.NotFoundException('image %s not found.' %
(request.id,))
APPLICATION = endpoints.api_server([HelloImgApi])
And this is the response (save it in the client with the proper format)
{
"message": "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}
in the client you can do this (in python for continuity)
import base64
myFile = open("mock.jpg", "wb")
img = base64.b64decode(value) #value is the returned string
myFile.write(img)
myFile.close()
Did you try converting the image to base64 string and send it as an argument of your request on the client side?
So you will be able to do that on the server side :
#strArg is the Base64 string sent from the client
img = base64.b64decode(strArg)
filename = 'someFileName.jpg'
with open(filename, 'wb') as f:
f.write(img)
#then you can save the file to your BlobStore