5 ms·

IPFS-Screenshot – Like Cloudapp but with IPFS

90 points by uptownhr 10y ago

webscaleizfun 10y ago
Neat, could be very handy for sharing screenshots with others!
- deleted 10y ago
  [deleted]
namuol 10y ago
Does this actually do anything? Here's the full source: #! /bin/bash echo "testing" >> ~/.ipfs-screen/ipfs-add.log file=ipfs-screen.jpg gnome-screenshot -a -f ~/.ipfs-screen/$file hash_log=$(ipfs add ~/.ipfs-screen/$file) echo $hash_log >> ~/.ipfs-screen/ipfs-add.log hash=$(echo $hash_log | awk '{ print $2; }') echo "https://ipfs.io/ipfs/$hash" | xclip -selection clipboard Edit: Nevermind, didn't see the `ipfs add ...` call... I guess this just goes to show how simple it is to use IPFS. ;) Edit2: I can't seem to resolve any of my files on `ipfs.io` -- probably some problem with my network config that's preventing peers from mirroring my file?
- lkjhgfdsa57 10y ago
  Have you left the ipfs daemon running? Do any errors show in it? Does this show any connections: ipfs swarm peers
  - namuol 10y ago
    I wasn't aware that `ipfs daemon` was required for it to work. Ran that; it works now. :)
no_protocol 10y ago
Looks like a Show HN. Can you update the title? Sharing screenshots quickly sounds like a useful app. I'm interested immediately. I've never used IPFS so when I see the installation steps list things like "install IPFS" and "start IPFS daemon," I'm scared to actually take those actions. I just wonder what this is going to do to my system. Is it going to be running a web-accessible service? vague idea of what IPFS is leads to more questions Can I remove content after publishing? Do I have to have the daemon running forever? Is it like pastebin for images? Am I anonymous or not? etc. Because of those types of questions, I haven't actually tried it out yet, but this seems like a good opportunity to package up a 'program' that people can just 'run' on their computers. If you're relying on an existing network that any party can enter, the program just works and you don't have any infrastructure. Am I on the right track here? I'm not really looking for answers to any of those questions, just pointing out what thoughts I have after reviewing your project. If I wanted to know the answers, I would go spend a while learning about IPFS. If the author is still here, I am wondering what benefits/drawbacks using IPFS has compared to, say, a shell script that uploads images to your own server and places the link in your clipboard.
- kefka 10y ago
  > Can I remove content after publishing? No. Once a file has been hashed, that hash always equals that file. No. Matter. What. Now, if no one else in the world has that file that equals that hash, then the content is dead. But you can never remove things. It wouldn't make sense to do so. >Do I have to have the daemon running forever? You can run it as long as you want. But if you're the only hoster of certain images, then you quitting will mean those files can't resolve. But if your stuff is popular, other IPFS daemons will also provide bandwidth and capacity. > Is it like pastebin for images? Am I anonymous or not? It's like Pastebin, kind of. Your node is NOT anonymous, but the content itself can be. The content=hash , no matter who shared it.
  - fudged71 10y ago
    >you can never remove things. It wouldn't make sense to do so. This seems like one of the few instances where that might not be true. Does a quick screenshot deserve to take up space on IPFS forever? It seems like an optional expiry timestamp could be useful.
    - tscs37 10y ago
      A screenshot doesn't live on IPFS forever. IPFS has garbage collection, if content is not requested from any peers, the peers will drop the content after some time. So your screenshot will probably live a couple hours or days but not forever, that's not what IPFS does. Other projects like Filecoin, Storj or Swarm are actually for long-term secure storage but you also pay for using that service.
    - kefka 10y ago
      In the truest sense of the word, if data for a given hash is on any computer, that computer can provide the data behind the hash. If that data was found 1000 years from now, and entered into the system, the data would generate the same hash, and then be able to fulfill any hash requests. Also, IPFS does data deduplication across blocks (chunks of 512KB - I believe), files, and directories. So if I share a source repo that uses someone else's repo, and they share it too, then my copy helps speed his files up as well. There's an ongoing project to get OpenStreet Maps in IPFS, so that local areas have their own hash, all the way up to state, country, continent, and world. It's so the whol geographic repo could be shared amongst all, without the burden of storage on a single person or group.
uptownhr 10y ago
hi guys. just noticed it i got on frontpage! I wanted to demo how easy it was to use IPFS and was a bit suprised no one made a cloudapp clone with this tech. As you can see in the code, took like 30 min to put it together. I'm not that familiar with IPFS either so thanks for answering all the questions guys. FYI: thanks for the guys that put in a pull-request, i've already merged them in.
- uptownhr 10y ago
  sample screenshot url taken using IPFS https://ipfs.io/ipfs/QmTBiRWHtVsukgmwEtjpZdPfapCrUGMpjfL2gyoia1X7bv https://ipfs.io/ipfs/QmTBiRWHtVsukgmwEtjpZdPfapCrUGMpjfL2gyo...
- mschoening 10y ago
  Creator of CloudApp here (no longer involved). This is really neat, thanks for sharing! You could potentially monitor ~/Desktop on OS X and identify screenshots with: mdls 'Screen Shot 2016-10-24 at 4.14.54 PM.png' | grep IsScreenCapture That would match the original behavior even closer. Edited for brevity
  - uptownhr 10y ago
    Thanks for the tip.
  - nathancahill 10y ago
    Props. Didn't know you were no longer involved. Sale? Is this why it got super expensive?
jaequery 10y ago
for osx, anyone know how to bind a keyboard shortcut commands to run this script?
- tinix 10y ago
  make a service with automator that runs whatever command you want and define a global shortcut under prefs/keyboard/shortcuts.
mercora 10y ago
ive bound this oneliner to do the same for Xorg: echo "https://gateway.ipfs.io/ipfs/`xwd https://gateway.ipfs.io/ipfs/`xwd -root|convert - png:-|ipfs add -q`"|xclip -selection clipboard
jerguismi 10y ago
I don't really grasp the point. Isn't ipfs.io still pretty much centralized service? So you have the image stored in ipfs, but what is the added value instead of using something like imgur?
- x0137294744532 10y ago
  ipfs.io is simply a public gateway to the ipfs network. If you have the ipfs daemon running, you can fetch the image through the ipfs network like this: $ ipfs get QmTf3EquRYzxa4njTRpimp6YEcJJPSUf5pQE9TE54qCa3M It will download the image per P2P.
  - toomuchtodo 10y ago
    Is there a way to associate metadata for an object in IPFS? Or must that be out of band?

90 points by uptownhr 10y ago

webscaleizfun 10y ago

Neat, could be very handy for sharing screenshots with others!

deleted 10y ago
[deleted]

namuol 10y ago

Does this actually do anything? Here's the full source: #! /bin/bash echo "testing" >> ~/.ipfs-screen/ipfs-add.log file=ipfs-screen.jpg gnome-screenshot -a -f ~/.ipfs-screen/$file hash_log=$(ipfs add ~/.ipfs-screen/$file) echo $hash_log >> ~/.ipfs-screen/ipfs-add.log hash=$(echo $hash_log | awk '{ print $2; }') echo "https://ipfs.io/ipfs/$hash" | xclip -selection clipboard Edit: Nevermind, didn't see the `ipfs add ...` call... I guess this just goes to show how simple it is to use IPFS. ;) Edit2: I can't seem to resolve any of my files on `ipfs.io` -- probably some problem with my network config that's preventing peers from mirroring my file?

lkjhgfdsa57 10y ago
Have you left the ipfs daemon running? Do any errors show in it? Does this show any connections: ipfs swarm peers
- namuol 10y ago
  I wasn't aware that `ipfs daemon` was required for it to work. Ran that; it works now. :)

no_protocol 10y ago

Looks like a Show HN. Can you update the title? Sharing screenshots quickly sounds like a useful app. I'm interested immediately. I've never used IPFS so when I see the installation steps list things like "install IPFS" and "start IPFS daemon," I'm scared to actually take those actions. I just wonder what this is going to do to my system. Is it going to be running a web-accessible service? vague idea of what IPFS is leads to more questions Can I remove content after publishing? Do I have to have the daemon running forever? Is it like pastebin for images? Am I anonymous or not? etc. Because of those types of questions, I haven't actually tried it out yet, but this seems like a good opportunity to package up a 'program' that people can just 'run' on their computers. If you're relying on an existing network that any party can enter, the program just works and you don't have any infrastructure. Am I on the right track here? I'm not really looking for answers to any of those questions, just pointing out what thoughts I have after reviewing your project. If I wanted to know the answers, I would go spend a while learning about IPFS. If the author is still here, I am wondering what benefits/drawbacks using IPFS has compared to, say, a shell script that uploads images to your own server and places the link in your clipboard.

kefka 10y ago
> Can I remove content after publishing? No. Once a file has been hashed, that hash always equals that file. No. Matter. What. Now, if no one else in the world has that file that equals that hash, then the content is dead. But you can never remove things. It wouldn't make sense to do so. >Do I have to have the daemon running forever? You can run it as long as you want. But if you're the only hoster of certain images, then you quitting will mean those files can't resolve. But if your stuff is popular, other IPFS daemons will also provide bandwidth and capacity. > Is it like pastebin for images? Am I anonymous or not? It's like Pastebin, kind of. Your node is NOT anonymous, but the content itself can be. The content=hash , no matter who shared it.
- fudged71 10y ago
  >you can never remove things. It wouldn't make sense to do so. This seems like one of the few instances where that might not be true. Does a quick screenshot deserve to take up space on IPFS forever? It seems like an optional expiry timestamp could be useful.
  - tscs37 10y ago
    A screenshot doesn't live on IPFS forever. IPFS has garbage collection, if content is not requested from any peers, the peers will drop the content after some time. So your screenshot will probably live a couple hours or days but not forever, that's not what IPFS does. Other projects like Filecoin, Storj or Swarm are actually for long-term secure storage but you also pay for using that service.
  - kefka 10y ago
    In the truest sense of the word, if data for a given hash is on any computer, that computer can provide the data behind the hash. If that data was found 1000 years from now, and entered into the system, the data would generate the same hash, and then be able to fulfill any hash requests. Also, IPFS does data deduplication across blocks (chunks of 512KB - I believe), files, and directories. So if I share a source repo that uses someone else's repo, and they share it too, then my copy helps speed his files up as well. There's an ongoing project to get OpenStreet Maps in IPFS, so that local areas have their own hash, all the way up to state, country, continent, and world. It's so the whol geographic repo could be shared amongst all, without the burden of storage on a single person or group.

uptownhr 10y ago

hi guys. just noticed it i got on frontpage! I wanted to demo how easy it was to use IPFS and was a bit suprised no one made a cloudapp clone with this tech. As you can see in the code, took like 30 min to put it together. I'm not that familiar with IPFS either so thanks for answering all the questions guys. FYI: thanks for the guys that put in a pull-request, i've already merged them in.

uptownhr 10y ago
sample screenshot url taken using IPFS https://ipfs.io/ipfs/QmTBiRWHtVsukgmwEtjpZdPfapCrUGMpjfL2gyoia1X7bv https://ipfs.io/ipfs/QmTBiRWHtVsukgmwEtjpZdPfapCrUGMpjfL2gyo...
mschoening 10y ago
Creator of CloudApp here (no longer involved). This is really neat, thanks for sharing! You could potentially monitor ~/Desktop on OS X and identify screenshots with: mdls 'Screen Shot 2016-10-24 at 4.14.54 PM.png' | grep IsScreenCapture That would match the original behavior even closer. Edited for brevity
- uptownhr 10y ago
  Thanks for the tip.
- nathancahill 10y ago
  Props. Didn't know you were no longer involved. Sale? Is this why it got super expensive?

jaequery 10y ago

for osx, anyone know how to bind a keyboard shortcut commands to run this script?

tinix 10y ago
make a service with automator that runs whatever command you want and define a global shortcut under prefs/keyboard/shortcuts.

mercora 10y ago

ive bound this oneliner to do the same for Xorg: echo "https://gateway.ipfs.io/ipfs/`xwd https://gateway.ipfs.io/ipfs/`xwd -root|convert - png:-|ipfs add -q`"|xclip -selection clipboard

jerguismi 10y ago

I don't really grasp the point. Isn't ipfs.io still pretty much centralized service? So you have the image stored in ipfs, but what is the added value instead of using something like imgur?

x0137294744532 10y ago
ipfs.io is simply a public gateway to the ipfs network. If you have the ipfs daemon running, you can fetch the image through the ipfs network like this: $ ipfs get QmTf3EquRYzxa4njTRpimp6YEcJJPSUf5pQE9TE54qCa3M It will download the image per P2P.
- toomuchtodo 10y ago
  Is there a way to associate metadata for an object in IPFS? Or must that be out of band?