How to download folder as zip using dropbox Ruby SDK - ruby-on-rails

We can get the share link for a dropbox folder from SDK(https://github.com/dropbox/dropbox-sdk-ruby/blob/master/lib/dropbox_sdk.rb#L1222-L1225), which link is dl=0 by default, I need to set it with dl=1 so that it will download directly, I did some hack:
require 'dropbox_sdk';
client = DropboxClient.new(ENV['dropbox_access_token'])
session = DropboxOAuth2Session.new(Option['dropbox_access_token'], nil)
response = session.do_get "/shares/auto#{client.format_path('/auction_offerings/two')}", {"short_url" => false}
response = Dropbox::parse_response(response)
response["url"][-1]="1"
Then response["url"] will become the download link I want, but it is obvious not the right way to do that. Any better practice?

Related

How to download a file via the Google Drive API?

I'm working to download a file via the Google Drive API using the gem google-api-client.
x = Google::Apis::DriveV2
drive = x::DriveService.new
drive.authorization = auth
files = drive.list_files
files.items.each_with_index do |file, index|
url_to_index = file.export_links.select { |k, v| v if k == 'text/plain' }
file_content = open(url_to_index["text/plain"]).read
end
The problem is file_content is returning the Google login screen not the file in text/plain format. It appears that when my Rails app opens the URL it does not have access to the text file.
What's the right way to enable my Rails app to grab the file in the text format?
Stated in Download Files
Depending on the type of download you'd like to perform — a file, a Google Document, or a content link — you'll use one of the following URLs:
Download a file — files.get with alt=media file resource
Download and export a Google Doc — files.export
Link a user to a file — webContentLink from the file resource
Downloading the file requires the user to have at least read access. Additionally, your app must be authorized with a scope that allows reading of file content.
You may go through the documentation for more information and examples.
See the log output: Two factor autentifications need to you permit access from you app to your google drive account.
In log you will see needed info to do this: link and secret_key.
tail -f log/*.log
I just realize that mimetype for download is different from the file meta.
Please check this url for available mimetype : https://developers.google.com/drive/api/v3/integrate-open
for example mimeType : 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
'

How to get share link with dropbox api in Swift?

I want to make an app that lets a user upload a file to dropbox and then get options to share that file. How can I get a dropbox link for a file? It seems like I could use
client.sharing.createSharedLink(path:"/myfile")
but how would I access that data as a String?
Here's a sample of how you could use createSharedLink in SwiftyDropbox to get a shared link to a file, in this example at the path /test.txt.
Dropbox.authorizedClient!.sharing.createSharedLink(path: "/test.txt").response({ response, error in
if let link = response {
print(link.url)
} else {
print(error!)
}
})
Building on #Greg's answer, you can simply replace www.dropbox.com with dl.dropboxusercontent.com and dl=0 with dl=1 to get the direct share link.

Rails carrierwave S3 get url with Content-Disposition header

We are using carrierwave + aws S3 to upload file, and we need provide a download function.
For solution 1, we use:
= link_to "Download", file.doc.url, download: file.original_name
And it does not work under IE8, click the link will open this file(image).
According to This, I should add Content-Disposition header,
Then I check aws S3 document, Found I need add response-content-disposition to file.doc.url,
Is there any way I can do this in carrierwave, or I could use other ways? Thanks for your help.
Got it, for fu = FileUploader.new, we can use:
fu.url(query: {"response-content-disposition" => "attachment;"})
Read tons of documents and source code.

Reading File on Google Drive using Dart

I created a configuration file (Simple Text File) on my Google Drive and now I would like to read it from my Chrome Packaged Dart Application. But I'm not able to get more information of the file than it's name, size etc.
For accessing Google Drive I use the google_drive_v2_api.
Any suggestion on how to get the contents of my configuration file would be great! Thanks!
I just did some test in my own chrome app, uploading and downloading a simple file:
chrome.identity.getAuthToken(new chrome.TokenDetails(interactive: true ))
.then((token){
OAuth2 auth = new SimpleOAuth2(token);
var drive = new gdrive.Drive(auth)..makeAuthRequests=true;
drive.files.insert({},content:window.btoa('hello drive!')).then((sentMeta){
print("File sent! Now retrieving...");
drive.files.get(sentMeta.id).then((repliedMeta){
HttpRequest request = new HttpRequest()..open('GET', repliedMeta.downloadUrl)
..onLoad.listen((r)=>print('here is the result:'+r.target.responseText));
auth.authenticate(request).then((oAuthReq)=>oAuthReq.send());
});
});
});
It works, but the HttpRequest to get content back seems heavy...
But i really recommend you to a take look to chrome.storage.sync if your config file size is < to 4ko... If not, you could also use the chrome SyncFileSystem API... They are both easier to use, and SyncFileSystem use Drive as backend.
This page on downloading files talks through the process for getting the contents of a file.

Uploading a file to Facebook using Koala on Ruby on Rails

I followed the following blogpost to figure out how to create Facebook events remotely using my app. I've been having problems loading the images from my app, however, because I do not have images stored locally on my app, they are stored in AWS.
#graph = Koala::Facebook::GraphAPI.new(#token)
picture = Koala::UploadableIO.new(#event.photo.url(:small))
params = {
:picture => picture,
:name => 'Event name',
:description => 'Event descriptio
:start_time => datetime,
}
is the following code I am currently using to send pictures to Facebook when Facebook events are created on my app. The problem is, however, that Rails is throwing the error: No such file or directory - http://s3.amazonaws.com/ColumbiaEventsApp/photos/21/small.jpeg?1312521889.
Does anybody who's more experienced with Rails development know if there is a way for me to treat a URL like a path to a file? The UploadableIO class expects a path to a file, and I'm struggling to figure out if there's a way in Ruby to treat URL's like filepaths. The way that photos stored on the app can be loaded to Facebook is as follows:
picture = Koala::UploadableIO.new(File.open("PATH TO YOUR EVENT IMAGE"))
if that helps.
I appreciate any new insights into this issue.
Ok so I played around and figured out how to post pictures.
Basically what I did was use the 'open-uri' library to convert the image links into file objects, which can then be passed to UploadableIO and sent to Facebook. This is the code that worked:
require 'open-uri'
OpenURI::Buffer.send :remove_const, 'StringMax' if OpenURI::Buffer.const_defined?('StringMax')
OpenURI::Buffer.const_set 'StringMax', 0
picture = Koala::UploadableIO.new(open(#event.photo.url(:small)).path, 'image')
params = {
picture: picture,
name: #event.name,
description: #event.description,
location: #event.location,
start_time: datetime
}
#graph.put_object('me', 'events', params )
The OpenURI constant StringMax needed to be changed because the image files I was using were small enough that the files were being processed as Strings rather than File Objects.
Hope this helps anyone trying to fix this!
With Koala 1.2.1 it's a very elegant solution. Here is sample code for creating an album and uploading to it from a remote, AWS link (btw this took about 30 lines in PHP w/ the PHP SDK!
#foo = Foo.find(params[:foo_id])
albuminfo = #graph.put_object('me','albums', :name=>#foo.title)
album_id = albuminfo["id"]
#graph.put_picture(#foo.remote_image_path,{}, album_id)
Facebook recently released an update that lets you post pictures using publicly accessible URLs (http://developers.facebook.com/blog/post/526/). The Koala library you're using supports that (https://github.com/arsduo/koala/blob/master/lib/koala/graph_api.rb#L102), so you should be able to post the pictures you're hosting on S3 without having to use OpenURI::Buffer.
For Facebook Ad Images, you unfortunately currently cannot do it by URL, thus:
require 'open-uri'
img_data = open(my_post.image.url :medium).read
img = graph.put_connections('act_X', 'adimages', bytes: Base64.encode64(img_data))

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