A user comes to my site and inputs something, and my site generates a file as an output.
Unfortunately i cannot place the generated file on the public directory - as you all now Meteor watches this and restarts every time the public folder content is changed.
so my generated files lives in .meteor/local/build/programs/server/files
so for example i have document.pdf that lives in that directory, I'd like to serve/force/trigger a file download to my client's browser that lets his browser download this document.pdf file.
In general Its not a very good idea to do this. It makes it very hard to scale your app. Node isn't good at serving chunky static files either.
Then also if you have two servers there is a slight chance that the other one's data is requested (e.g if you use a download manager).
I'm not sure but I think Meteor's live code reload doesn't work/is switched off in when in production mode (when using meteor deploy or meteor bundle)
The best thing to do would be to upload your file to S3 and then redirect the user to the file there.
You can also use Iron Router and server side routes to create a dynamic file download.
See Iron Router Server Side docs. Then you set your content type to application/pdf and send back the file directly without saving it to the filesystem. If you need to you can also save it in some other folder and serve it up yourself.
Then have a peek at this answer for an example of reading in and streaming out a file:
Node JS file downloads using a stream.
Since this is a server side route, using express and Iron Router, you shouldn't have to mess with any of the fibers related async issues.
Related
I am using Spring to create a web application in which a user can upload a zipped folder containing an index.html file along with all it's resources(pretty much like an Adobe captivate generated webpage). The user should be able to request the uploaded web pages in the form of inner web pages.
I can only go as far as unzipping the folder itself, but I have no idea how to launch the index.html present inside the zipped folder.
How do I achieve this?
Quite honestly Spring has no restrictions or advantages over
displaying your subpages inside another page. However you can use Spring MVC to dynamically serve the web pages from the uploaded folder.
More over you have to play the tricks from browser side. Going with iFrame seems to be the best option from client side, though there are many other options. Please check this thread.
You can write some smart APIs in SpringController which accepts the folder path or folder name as parameter, picks the necessary pages from the requested folder and serves the user.
Another approach could be to use a headless browser for the server side rendering and give the output as screenshots to client. This can render the pages server side. Please check this thread for more details.
I hope this helps you!
I've tried some of the services out there, including droplet, ctrlq.org/save, and some other sites that support directly fetching a file from a url and uploading it to dropbox, google drive and the like. Without the user having to store the file on a local disk.
Now the problem is none of these services support multiple urls or batch uploading, but I have quite a few urls and I really need a service where I can put them in, split them with enters or semicolons, and have the files uploaded to dropbox.(or any other cloud storage)
Any help would be gladly appreciated.
The Dropbox Saver JavaScript control allows you to save up to 100 files to the user's Dropbox in one shot. You'll need to programmatically create the button using Dropbox.createSaveButton as explained in the linked page.
It seems like the 100-file limit (at any one time) is universal, but you might find that it isn't the case when using the DropBox REST API. It looks possible to do this with NodeJS server side (OAuth and posts) or Javascript client side (automating FileReader). I'll review and try to add content so these aren't just links.
If you can leave a page open for about 20 minutes due to "technical limitations", the dropbox should be loadable 100-at-a-time like that, assuming each upload takes less than 2 seconds; it's an easy hook to add a progress indicator.
If you're preloading the dropbox once yourself or the initial load is compatible with manual action, perhaps mapping a drive and trying to unzip an archive of your links to it would work. If your list of links isn't extremely volatile then the REST API could be used to synchronize changes.
Edit: Forgot to include this page on CloudConvert, which unzips archives containing up to 100 files into DropBox. Your use case doesn't seem to include retrieving the actual content at your servers (generated zip files), sending the automation list to the browser and then having the browser extract to dropbox, but it's another option.
The Dropbox API now offers the ability to save a file into Dropbox directly via a URL. There's a blog post about it here:
https://blogs.dropbox.com/developers/2015/06/programmatically-saving-a-url-to-dropbox/
The documentation can be found here:
https://www.dropbox.com/developers/core/docs#save-url
I have three different domains all on the same server and I want to run the code on all three domains from one source on the same server, but not sure the best way.
Here's what I have:
domain01.com
domain02.com
domain03.com
domain04.com/sourcecode
I want domain01-03 to run the code inside domain04.com/sourcecode so the user can go to their domain and not have to go to domain04.com to see their site. I want to keep all the code inside domain04.com because I don't want to have to put the code inside each domain every time I make a code change.
For whatever reason I can't get my head around the best way to do this -- and want to do it right.
Any advice?
Thanks!
All you need to do is create a mapping on the first three sites to the appropriate directory in the fourth site, eg map /domain04 to /full/path/to/domain04/sourcecode, then refererence its CFML resources via /domain04 in CFC and include paths. The inference here is the code does need to be accessible via the file system for all sites concerned.
Note that if you also want to server non-CFML files via HTTP (eg: images, css, js), then you will also need a web server virtual directory along the same lines.
None of this requires a framework, it's standard CF / web server functionality.
Are you using a framework? One like ColdBox could make this trivial if your code is written modularly. (Disclaimer, I am affiliated with ColdBox)
If not, it really depends on what the code is. CFCs can be mapped anywhere via ColdFusion mappings. Even .cfm files can be included as long as the file systems are visible. If you're wanting to basically have complete copy of a site in another web root without duplication, I would first consider using a shared source control repo and a build process that checks it out in the appropriate places, and secondly a good old, symlink will also work .
I have hosted a Tomcat application on CloudBees which allows users to edit some XML and saves them. I need to download and save these files locally for my personal usage. However I could not find a way to do this. I tried the 'download source' option but it downloads the original files that I had uploaded and not the edited versions. However my application is able to access the edited versions (and so clearly everything is being saved all right). Getting these files back is extremely critical and necessary for me and is, in fact, the whole motive of this app. Kindly tell if there is some way to get back the files in CloudBees or any other free Java hosting site which would allow me to do it.
It's not very clear from your question how your app is currently dealing with these files, but I'll take a swing at providing some general info.
To support editing and downloading of files, your app design would need to address the following issues:
How do users edit/upload the changed XML?
Where does your app store the changed XML?
How does your app retrieve the edited XML and make it available for download?
For #1, you will need to provide an edit or upload interface in your app for manipulating the XML files. I'm assuming this is something your app has already solved using a form of some kind.
For #2, you need to pick an approach for storing the files that is appropriate for app's needs and the runtime environment where your app will be deployed. For instance, on CloudBees (or most other CLoud platforms), it's important to understand that the local filesystem of the app can be used for temporary storage, but it is not clustered and it will be wiped away each time the app is updated or restarted. If these XML files need to be available forever, you will need to store them in a persistent location that is external to the application's runtime instance. Most developers use databases (such as the CloudBees MySQL service) to store persistent data in this way. In general, your app can store these files anywhere, but your app needs to manage how to store them, and how to retrieve them later.
For #3, to allow a user to download the changed files, you will need to implement your own mechanism for retrieving the file from its persistent location, and then send it back to the user's browser. If you want something like right-click "Save As" to work, then your app will just need to support a URL that can display the edited XML file directly in the browser. If your app then provides a link to that URL, users can download it using RightClick+SaveAs. If you want the user to be able to click on a button/link and trigger a Save As dialog automatically, then you'd need to write a URL handler (Servlet) that serves the XML content up using a Content-Disposition header (see this StackOverflow article). This header will tell the browser that the file is supposed to be saved to disk, and allows you to provide a default file name.
This seems like a simple question, but I just can't seem to wrap my head around it...
I have a simple html page. All that html page does is looks to see whether a browser cookie is present, and if it is, it will write a message that says "Found the cookie".
In order for this html page to work, it needs to be opened in a browser using a url that uses a specific domain "mytestsite.org" in the path in order to work. So I want to be able to open that page in a browser using a url like "www.mytestsite.org/mytestpage.html". Easy enough...
When I use this test page locally, I just deploy it to a local JBoss server, then make a mapping in my "hosts" file (I'm on Windows XP), that maps my local IP to "local.mytestsite.org". This tricks the browser into thinking that it is actually getting the page from "mytestsite.org", when it is actually being served by my local JBoss server.
I want to give this html file to another person who is going to use it on their pc. However, they don't have any sort of http server installed, so the little host mapping trick won't work. I don't want to make them go through the trouble of installing a server just to get this test page to work. Additionally, I can't physically put this file on "mytestsite.org".
Any thoughts on how I could open this page through a "mytestsite.org" url through a browser, without actually having it deployed to a server?
Is your test machine with JBoss installed accessible from the Internet? If so, you may ask the other person to add a mapping to their hosts file, that maps local.mytextsite.org to the public IP of your test machine.