App engine requests have location-aware headers (X-AppEngine-Country, X-AppEngine-Region, X-AppEngine-City) automatically added. Does Cloud Run have something similar?
This is (will be) possible with Google Cloud HTTP(S) Load Balancer via user-defined headers.
However, putting your Cloud Run service behind the load balancer is currently in alpha, so you cannot try this out today. You can wait for a while, or if you’re willing try the alpha out and give feedback, please contact me. #ahmetbtodo
AFAIK, these Google custom header values doesn't exist today. However, in the current headers you can find the IP of the originated requester (here in IPv6)
forwarded: for="2a01:cb14:af0:b500:ccf6:1a91:1713:b48";proto=https
x-forwarded-for: 2a01:cb14:af0:b500:ccf6:1a91:1713:b48*emphasized text*
You can use external services to know the exact location.
Related
I'm currently developing a Wolkenkit application which is run on my local machine.
I want to upload a file from the Wolkenkit app to the blob server (as documented here).
When sending a POST request from the server to https://local.wolkenkit.io:3001/, Node.js gives me the error ECONNREFUSED.
I've tested the POST-Request with another program and it works there. Any idea why it doesn't work from the wolkenkit application itself?
Thanks!
The Storing files sample you linked to shows code that is to be run in the browser, not in the backend itself. Of course, both should work, but there are a few minor differences you need to watch out for.
Fixing the host name
First, I suppose that local.wolkenkit.io in your case maps to 127.0.0.1, which is the default for wolkenkit. That means that when you try to connect to this domain from within a Docker container, the container does not try to call out to the blog storage container, but it stays within itself. So, the first thing that needs to be fixed is the host name.
Basically, there are two options for this: You can either setup local.wolkenkit.io so that it resolves to the external IP address of your machine. This would work, but is pretty cumbersome. The other option is to directly address the appropriate container that is responsible for blob storage, by its internal name. The internal name is <name-of-your-app>-depot-file. So you need to replace https://local.wolkenkit.io:3001/ by https://<...>-depot-file.wolkenkit.io:3001/.
Fixing the port
Second, the port is wrong. This is because the blob storage service is internally running on port 3000, externally on 3001. So instead of https://<...>-depot-file.wolkenkit.io:3001/ you need to use https://<...>-depot-file.wolkenkit.io:3000/.
Once you have done this you should not get any more errors like ECONNREFUSED, since now the service can be found.
Fixing SSL issues
Third, since you are now connecting to the blob storage service using a different domain name, the SSL certificate doesn't match any more, since it was issued for local.wolkenkit.io. As a result, you will get SSL errors when trying to connect.
The simplest way to get around this is to disable any SSL checks (albeit this is also the most insecure way to handle this!). How to do this depends on the HTTP client module you are using. E.g., in request there is an option called strictSSL that you can set to false.
Of course, what you actually should do is to either use a custom certificate which includes this domain name as well, or to write a function that handles the certificate check and accepts the presented one, especially in this case.
If you do all of this, things should work :-)
PS: I am one of the authors of wolkenkit. Thanks a lot for bringing up this issue, and we will take care of this in the future, to make storing blobs easier.
I'm setting up an iOS app to use the IP Messaging and video calling apis. I'm able to connect, create channels and setup a video call if I manually create hard-coded tokens for the app. However, if I want to use the PHP server (as described here https://www.twilio.com/docs/api/ip-messaging/guides/quickstart-ios) then I always get an error and it can't connect anymore.
I'm attaching a screenshot of what I see when I hit the http://localhost:8080 address which seems to produce a 500 Internal error on this URL: https://cds.twilio.com/v2/Streams
Thanks so much!
After much time spent on this I decided to try the node backend instead - under other server-side languages of the PHP and I have it running in 2 minutes! I used the exact same credentials as the ones that I was using on the PHP config file so either my PHP environment has something strange or the PHP backend needs some fixing. In any case, I'm able to move forward using the node backend, so if you run into the same issue just try node instead of PHP. woohoo!
I am trying to find out if there is a way to browse all ELB's for a ios app i am working on.I found a describeloadbalancer method in the aws api, but that requires me to know the load balancer's name. I want to know if there is a way to list all the ELB's associated with my AWS account.
I noticed that there is a aws console app that allows users to browse their elastic load balancers, so im guessing there must be a way to do this.
Regarding DescribeLoadBalancers, are you certain of that behavior? The documentation suggests otherwise, by default:
Returns detailed configuration information for all the load balancers created for the account.
If you specify the load balancers name, the returned results should be limited to those sets of load balancers that you specified:
If you specify load balancer names, the action returns configuration information of the specified load balancers.
Here's a link for the related documentation in AWS SDK for iOS 7.1, if you're interested. It seems to me that this should work fine if you simply do not request any specific ELB names.
Hi i have googled all day long but i can't find an answer.
I have to write a web app which talks to asterisk.
It should be able to do ClicktoCall operations.
Can you guys recommend something ?
I came across a few projects but I'm still not sure.
I just want to connect to Asterisk and do calls from the web app.
thanks
If you're a Ruby programmer the best way for you to hook into Asterisk is adhearsion. It wraps up Asterisk's AGI and Manager (MAPI) APIs for you.
Also hAve a look at SIP, asterisk, adhearson and VoIP and in particular Adam Kalsey's answer. He works for Tropo which sponsor the adhearsion project.
First you need to know, that the protocol Asterisk uses is SIP, you can learn more at the Wikipedia.
Since you want to use an rails application, you may want to use ruby as well, so there's a ruby implementation named OverSip, you can check their API and see if it fits your requirements.
If you are aiming at web calls, you'll need an WebRTC, Flash or Java applet. For WebRTC you can check sipML5 for an opensource solution.
You can also opt for an interface, that will start a call from one number to another, using your phone. When the first call is picked up the server starts ringing in the destination.
Also you could make use of cloud communications providers like twilio, tropo, etc.
Try this Google search:
rails asterisk manager interface
I saw some interesting things right off. I am not trying to be one if those Use Google type people, just didn't want to paste all the links in that I found from this Google search.
Check it out, hope it helps.
There are several ways to do this but the three easiest ones are
1. Generate a call file on the Asterisk server
These files should be written to the dir
/var/spool/asterisk/outgoing
Asterisk will then pickup the file, process and delete it.
It's pretty aggressive when doing this so it's recommended to write the file into a temporary directory and then move it to the spool dir for processing.
An tutorial of the file format is here:
https://www.voip-info.org/asterisk-auto-dial-out/
(I personally feel this is a bit "hacky", and prefer doing it with an API call)
2. Generate the call by the AMI API interface.
Use the Originate function of the AMI API to generate the call. It's pretty easy to set this up just configure the manager.conf file whitch sets up a HTTP server on port 5038 from witch you can call the API.
https://www.voip-info.org/asterisk-config-managerconf/
3. Set up the call using the ARI API
First you need to setup ari.conf, this is enough for now:
[general]
enabled = yes
pretty=yes
allowed_origins=http://ari.asterisk.org
[my_username]
type = user
read_only = no
password = my_password
password_format = plain
This is a little bit more complicated to set up, but it really isn't that hard if you just get past the technical geek-speak. Just set up two channels, setup a mixing bridge and add both channels to the bridge.
To set up a click2call you dont even need to do that...
This is the call we use (ruby):
where
#{sip_id} is your registered SIP username
#{number} is the extension that is sent to the dialplan
#{USERNAME}
#{PASSWORD} is from ari.conf
HTTParty.post("http://sipserver.com/ari/channels?endpoint=SIP/#{sip_id}&extension=#{number}&context=outgoing&priority=1&timeout=30&api_key=#{USERNAME}:#{PASSWORD}")
(Note that you need to send the variabels for the variable parameter as a separate JSON for the originate command if you need to send them)
A really useful tool to understand how this works is the swagger at
http://ari.asterisk.org. We already allowed this origin in ari.conf so it should be ready to go. Remember to open your ports in firewalls etc.
Setup your Server IP and port and the API_KEY is in this format: my_username:my_password
I want to write an application in Delphi which filters requested URLs in the OS (not only web browsers) and if it matches - blocks it or changes the URL's content to blank. The problem is - I don't know where to start looking. Could you help me with some informations?
I think you're talking about a DNS service. usually, DNS services live outside, on your router, your ISP, or a 3rd-party like www.openDNS.org
But you could write your own, run it on your PC, and set your internet settings to use that as your DNS server.
I suspect that a lot of malware works like this....
Also, this sort of thing can be done with no programming at all - just edit your hosts file in C:\WINDOWS\system32\drivers\etc\hosts (it's a text file with no extension).
Anything in there should trump.
Also, before you start writing an application to do this, have a look at OpenDNS. If it's an app for personal use, you may find that you don't need it. If it's going to be a commercial offering, this is the bar for usability and usefulness that you need to meet or beat.
http://www.mail-archive.com/delphi-talk#elists.org/msg01558.html - text by Francois PIETTE quoted bellow(in case link will become unavailable):
"There are several way to achieve your goal. The two main I see are:
1) Write a LSP (Layered Service Provider)
2) Write a proxy server
The first is not possible with Delphi (At least I think so. If anyone know
how to write a LSP using Delphi, I would love to get the code).
The second - writing a proxy - is more or less easy with Delphi using ICS
components. See "usermade" link at ICS website (http://www.overbyte.be).
With this option, you have to configure IE to use the proxy: IE Menu / Tools
/ Internet options / Connections / Network parameters / Use a proxy and then
enter the IP address (127.0.0.1 if proxy run on the same computer) and port
number (pick anyone you like, for example 8080). Once IE is configured to
use a proxy, it will send all requests to the proxy. Then the proxy will
make the real request to the target server and return data back to IE. What
is important there is that you get all URL entered in IE or indirectly use
(clicking on links), and you can either really rely them to the target
server or forge and answer your self to say the page access is denied.
At ICS website, on the usermade page, you'll even find a HTTP proxy
component. If you need help with this component and/or the entire ICS,
please use ICS support mailing list (same server as this list). See
"support" link at ICS website for support details."
LE: it seems that this question is possible a duplicate
Using delphi to block websites
use GetExtendedTcpTable api locate if there are any connexions to the remote server you want to block on port 80 if there is a connection use SetTcpEntry to terminate that connexion is pretty simple