by   omaroman Java Version: Current License: Non-SPDX

kandi X-RAY | reverseproxy Summary

kandi X-RAY | reverseproxy Summary

reverseproxy is a Java library. reverseproxy has no bugs, it has no vulnerabilities and it has low support. However reverseproxy build file is not available and it has a Non-SPDX License. You can download it from GitHub.


            kandi-support Support

              reverseproxy has a low active ecosystem.
              It has 8 star(s) with 1 fork(s). There are 1 watchers for this library.
              It had no major release in the last 6 months.
              reverseproxy has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of reverseproxy is current.

            kandi-Quality Quality

              reverseproxy has 0 bugs and 0 code smells.

            kandi-Security Security

              reverseproxy has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              reverseproxy code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              reverseproxy has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              reverseproxy releases are not available. You will need to build from source code and install.
              reverseproxy has no build file. You will be need to create the build yourself to build the component from source.
              reverseproxy saves you 1338 person hours of effort in developing the same functionality from scratch.
              It has 2999 lines of code, 110 functions and 68 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed reverseproxy and discovered the below as its top functions. This is intended to give you an instant insight into reverseproxy implemented functionality, and help decide if they suit your requirements.
            • Method to validate scheme
            • Switch the scheme for the request
            • Create a new deferred url cookie cookie
            • Method to switch over the scheme
            • Logout the current user
            • Redirect to the original URL
            • Login
            • Sign out
            • Syncronously signin
            • Redirect to the original URL
            • Enhances the class
            • Add annotation to controller
            • Loads the configuration
            • Add an annotation to the target class
            • Adds a scheme annotated to all methods
            • Check access
            • Authenticate using SecureController
            • Signal that authenticate a user
            • Redirects to the referenced URL
            Get all kandi verified functions for this library.

            reverseproxy Key Features

            No Key Features are available at this moment for reverseproxy.

            reverseproxy Examples and Code Snippets

            No Code Snippets are available at this moment for reverseproxy.

            Community Discussions


            Golang ReverseProxy per host
            Asked 2022-Apr-05 at 11:20

            I am trying to implement a Reverse Proxy in Go that proxies traffic to different hosts based on some tenant embedded in the URL. The implementation looks like this:



            Answered 2022-Apr-05 at 11:20

            The problem is that in the scenario where a previous proxy already existed, you first pass the request on to that - and then still recreate the proxy, and again pass the request. In other words: you are making two proxied requests for each incoming request, when the tentantProxyMap is already populated for that tenant.

            The ReverseProxy implementation closes the req.Body, so the second time you pass the request on to the proxy, it attempts reading from an already closed body. You're seeing the http: invalid Read on closed Body error as a result.

            What you should try is to return after proxying the request, e.g. by adding a return:



            How to set X-Forwarded-For with httputil.ReverseProxy
            Asked 2022-Apr-02 at 06:33
            Why would I want to do this

            I have run in to this issue twice.

            The first time was with a reverse proxy that lived inside an IPv6 only server network. Client requests come in through NAT46. The source-IP of the request becomes [fixed 96-bit prefix] + [32-bit client IPv4 address]. This means that the reverse proxy could always identify the real client IP. I couldn't find a way to set the X-Forwarded-For header to that address though. I got around it by modifying the backend server.

            This time I have a reverse proxy which will run on Google App Engine. Requests hit Google's load balancer first, which adds the X-Forwarded-For header and forwards the request to my app. I want to modify the request a bit and then pass it to a backend server, which I cannot modify. The back-end needs the original client IP, and can accept it via X-Forwarded-For (it's authenticated, don't worry). In this case I want to pass the X-Forwarded-For header from Google's load balencer through unmodified.

            The Problem

            It seems like there is no way to set X-Forwarded-For to a value that I chose when using httputil.ReverseProxy. If I set it (option 1 below) the client address from the TCP connection will be appended. If if I set it to nil (option 2 below), it is omitted like the documentation suggests, but that's not what I want either.



            Answered 2022-Apr-02 at 06:33

            I believe you have two options.

            1. Implement http.RoundTripper

            You implement your own RoundTripper and re-set X-Forwarded-For in there. (demonstration)



            Should zone identifier be in X-Forwarded-For IP?
            Asked 2022-Mar-24 at 15:53

            When messing around with Go's http/httputil.ReverseProxy, listening on a local address with a zone, making a request through it locally, including the zone, I've seen that the zone identifier ends up in the X-Forwarded-For header added by the reverse proxy. (You can see it occur around here. SplitHostPort leaves the zone intact.)

            Should the zone be in the XFF IP? Does it make sense? Is it a bug?

            My not-very-clear understanding of zone identifiers is that it doesn't make sense outside of the particular machine that's using it. On the other hand, maybe if you're trying to trace the path a request took, the zone is necessary to disambiguate?



            Answered 2022-Mar-24 at 15:53

            After thinking about this for a while, I ended up writing a blog post about it. Here is the conclusions section of that post:

            Zones should be kept until the point of use, and then the decision to keep or strip them should be based on the specific use of the IP and ramifications of zones to that use.

            This means that reverse proxies should be including the zone in the X-Forwarded-For header, rate limiters should probably be discarding them, and prefix-contains-IP checks should be based on whether there's a zone in the prefix. But these are only examples -- there are myriad uses of IP addresses, and the particular use will dictate (or at least inform) the fate of the zone.

            Of course, this is all debatable. To see some other other opinions, check out the few comments I got when I asked about this in the r/ipv6 subreddit. If you have a differing opinion or know of anyone else having written about this, please let me know.



            cancel a web request and handle errors inside the ReverseProxy Director function
            Asked 2022-Feb-26 at 07:31

            I am wondering if it would be possible to cancel a web request or send an internal response to the client inside the ReverseProxy.Director function.

            Suppose we do something that throws an error, or we have other reason to not forward the request.



            Answered 2022-Feb-26 at 07:31

            if it would be possible to cancel a web request [...]

            You can cancel the request that is passed to the Director function, BUT there are some details to consider:

            • the correct way to cancel a request is to cancel its context
            • you can not cancel contexts where you didn't set a (deadline|timeout|cancelfunc) yourself → i.e. you must have access to the cancel function → i.e. you can't cancel parent contexts created by someone else.
            • the *http.Request passed to Director function is a clone of the original request

            Based on the points above, you can replace the request in the Director with another one that has a cancellable context. It may look like the following:



            self-hosted posthog has been down right after I rebooted my vps
            Asked 2022-Feb-07 at 09:08


            To reproduce the issue is very simple with a few steps:

            1. Install it on your Ubuntu server by running the following command:

            /bin/bash -c "$(curl -fsSL"

            1. During the auto installation process, you will be prompted to enter the domain for your Posthog site, so enter one and wait for the process to finish.

            2. Visit the domain you entered and it is accessbile.

            3. Now reboot your VPS and visit the domain again it is down forever. Not accessbile even if you use your vps ip address.

            I've tried this auto-installation and reboot thing three times on the same vps and ended up with the same result. I've also tried it on another vps by a new hosting provider, yet still the same issue. Fresh installation and the site will be down right after your reboot your vps!

            The following is the error log I got from the Caddy container, which is generated after the vps reboot:

            {"level":"error","ts":1642534398.9394724,"logger":"http.log.error","msg":"dial tcp connect: connection refused","request":{"remote_addr":"","proto":"HTTP/2.0","method":"GET","host":"","uri":"/preflight","headers":{"Sec-Ch-Ua":["" Not A;Brand";v="99", "Chromium";v="96", "Google Chrome";v="96""],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36"],"Sec-Fetch-Site":["cross-site"],"Accept-Language":["en-US,en;q=0.9"],"Accept-Encoding":["gzip, deflate, br"],"Cookie":["phtoolbar=yes; csrftoken=gsVfpdF56rbYgQQdwywH45zi83i386oe5KZZef3mIE00bumaQCG3i4OM35bdJIxQ; ph_sTMFPsFhdP1Ssg_posthog=%7B%22distinct_id%22%3A%22FpLgrw74q9qcclLSJ1bOrzsiPJmZtHdKswxemTFy9LG%22%7D"],"Cache-Control":["max-age=0"],"Sec-Ch-Ua-Mobile":["?0"],"Upgrade-Insecure-Requests":["1"],"Sec-Fetch-Dest":["document"],"Sec-Ch-Ua-Platform":[""macOS""],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,/;q=0.8,application/signed-exchange;v=b3;q=0.9"],"Sec-Fetch-Mode":["navigate"],"Sec-Fetch-User":["?1"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h2","proto_mutual":true,"server_name":""}},"duration":0.008754516,"status":502,"err_id":"gicbjv2m4","err_trace":"reverseproxy.statusError (reverseproxy.go:886)"} {"level":"error","ts":1642534401.5881941,"logger":"http.log.error","msg":"dial tcp connect: connection refused","request":{"remote_addr":"","proto":"HTTP/2.0","method":"GET","host":"","uri":"/preflight","headers":{"Cache-Control":["max-age=0"],"Sec-Ch-Ua-Mobile":["?0"],"Sec-Ch-Ua-Platform":[""macOS""],"Sec-Fetch-User":["?1"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36"],"Sec-Ch-Ua":["" Not A;Brand";v="99", "Chromium";v="96", "Google Chrome";v="96""],"Sec-Fetch-Mode":["navigate"],"Accept-Encoding":["gzip, deflate, br"],"Upgrade-Insecure-Requests":["1"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,/;q=0.8,application/signed-exchange;v=b3;q=0.9"],"Sec-Fetch-Site":["cross-site"],"Sec-Fetch-Dest":["document"],"Accept-Language":["en-US,en;q=0.9"],"Cookie":["phtoolbar=yes; csrftoken=gsVfpdF56rbYgQQdwywH45zi83i386oe5KZZef3mIE00bumaQCG3i4OM35bdJIxQ; ph_sTMFPsFhdP1Ssg_posthog=%7B%22distinct_id%22%3A%22FpLgrw74q9qcclLSJ1bOrzsiPJmZtHdKswxemTFy9LG%22%7D"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h2","proto_mutual":true,"server_name":""}},"duration":0.001907749,"status":502,"err_id":"27e15xwsj","err_trace":"reverseproxy.statusError (reverseproxy.go:886)"}

            By the way, this is their documentaion page FYI:

            Original question:

            I've installed Posthog with their so-called hobby installation script on my vps and at first it was working fine. But right after I rebooted ubuntu and visited my self-hosted posthog site again, it would not load and just showed a blank page. It seems that something went wrong after I rebooted my vps. I've checked all the services required by Posthog with the command docker ps, and everything is up and running(check the screenshot attached).

            I've been trying to figure it out for 4 days yet with no luck. I am new to docker and kubernetes so I do not know what causes the problem and what I should do. Please shed some light on this and help me :(



            Answered 2022-Feb-07 at 09:08

            First things first, this is a docker-compose stack, not Kubernetes. If you take a look at the script you execute, you can see that it's downlowading docker compose and then uses it to start up your stack. As such, executing docker-compose stop && docker-compose start after your rebooted should fix this.

            The "problem" here is the docker compose yaml that is used for the hobby project, which includes the following:



            Duende BFF Yarn does not pass tokens when using gRpc Web Client from Blazor WebAssembly app
            Asked 2022-Feb-04 at 07:27

            I am building a web application with ASP.NET Core 6.
            I have:

            1. Frontend.Client - a Blazor WebAssembly with the UI
            2. Frontend.Server - ASP.NET Core, hosting the Blazor WebAssembly
            3. Web Api - a remote REST Service
            4. gRpc Service - a remote gRpc Service
            5. Identity Provider - a Duende project using Duende.Bff.Yarp

            My Frontend.Client is configured to call its own BFF (the Frontend.Server), while the server forwards the calls to the REST and gRpc services using Duende.Bff.YARP.
            The calls to the REST service work as expected: the client passes the token automatically as by documentation.
            My problem is with the calls to gRpc, which don't seem to use the correct HttpClient with the AntiForgeryToken and the Access Token as it should.
            I know I'm missing some setting somewhere but I can't find any example on how to use Duende with a gRpcWebClient.

            My Frontend.Client configuration contains:



            Answered 2022-Feb-04 at 07:27

            The problem was the AntiforgeryHandler, since I had not added it to the chain of the HttpHandlers of my gRpcChannel. What I did to solve it was

            1. Add a constructor to my AntiforgeryHandler to accept an innerhandler and pass it to its base class
            2. Attach my AntiforgeryHandler to the chain of HttpHandlers turing the construction of the grpc client

            The AntiforgeryHandler becomes:



            Route '0' requires Hosts or Path specified. Set the Path to '/{**catchall}' to match all requests
            Asked 2022-Jan-04 at 13:16

            I am trying to use Yarp in my gateway app for routing my applications. However as soon as it's started, I get "Route '0' requires Hosts or Path specified. Set the Path to '/{**catchall}' to match all requests."

            Here is my AppSettings file:



            Answered 2021-Dec-25 at 11:22

            There was a breaking changes in v1.0.0-preview11 for the way Routes are configured. You need to update your setting.



            How to capture HttpProxy responses
            Asked 2021-Nov-23 at 19:11

            I have a reverse proxy server using Vert.x Web Proxy, implemented with pretty standard code:



            Answered 2021-Nov-23 at 19:11

            The answer to this question is simple: do not use HttpProxy if you want to capture responses.

            After looking through the Vertx Web Proxy source code, it became clear to me that the HttpProxy has no capability for capturing responses. It became necessary to implement a web proxy that did so.

            I assimilated the bulk of the Vertx Web Proxy code into my application, and created a proxy library that not only captures responses but captures requests as well. The new web proxy, called F3WebProxy, has lambdas that allow for coding custom actions when a proxy begins processing a request, and coding custom actions when the response is received. The interface is very simple and easy to use.



            Python3 ThreadingHTTPServer fails to send chunked encoded response
            Asked 2021-Oct-20 at 07:42

            I'm implementing a simple reverse proxy in Python3 and I need to send a response with transfer-encoding chunked mode.

            I've taken my cues from this post but I have some problems when sending the chunks in the format described here

            If I send chunks of length <= 9 bytes the message is received correctly by the client, otherwise when sending chunks of length >= 10 bytes, it seems that some of them are not received and the message remains stuck in the client waiting indefinitely

            Here is an example of non working code:



            Answered 2021-Oct-20 at 07:42

            I post the solution (thanks to Martin Panter from in case anyone else will have the same problem in the future.

            The behaviour was caused by the chunk size part, that must be in hex format, not decimal.

            Unfortunately from the Mozilla docs the format was not specified and the example used only length < 10. A formal definition is found here

            In conclusion, the working version is the following (using {0:x} instead of {0:d})



            nginx: [emerg] host not found in upstream "udagram-users:8080" in /etc/nginx/nginx.conf:11
            Asked 2021-Oct-09 at 10:57

            After deploying to AWS EKS I get this error

            Gtihub repo:

            Steps to reproduce

            1. Create AWS EKS cluster and node groups
            2. Configure EKS cluster with kubectl
            3. Deploy to EKS cluster (secrets first, then other services, then reverserproxy)
              . kubectl apply -f env-secret.yaml
              . kubectl apply -f aws-secret.yaml
              . kubectl apply -f env-configmap.yaml
              . ...
              . kubectl apply -f reverseproxy-deployment.yaml
              . kubectl apply -f reverseproxy-service.yaml




            Answered 2021-Oct-09 at 10:57
            Use resolver in nginx config

            The nginx resolver directive is required.

            Nginx is a multiplexing server (many connections in one OS process), so each call of system resolver will stop processing all connections till the resolver answer is received. That's why Nginx implemented its own internal non-blocking resolver.

            If your config file has static DNS names (not generated), and you do not care about track IP changes without nginx reload, you don't need nginx's resolver. In this case all DNS names will be resolved on startup. Nginx's resolver

            Nginx resolver directive should be used, if you want to resolve domain name in runtime without nginx reload.



            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install reverseproxy

            You can download it from GitHub.
            You can use reverseproxy like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the reverseproxy component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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