webservice | Python webservice for OpenALPR | Web Services library
kandi X-RAY | webservice Summary
kandi X-RAY | webservice Summary
This is a simple web service that uses the OpenALPR Python bindings to respond to HTTP requests with license plate data.
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QUESTION
I have a Python (3.x) webservice deployed in GCP. Everytime Cloud Run is shutting down instances, most noticeably after a big load spike, I get many logs like these Uncaught signal: 6, pid=6, tid=6, fault_addr=0.
together with [CRITICAL] WORKER TIMEOUT (pid:6)
They are always signal 6.
The service is using FastAPI and Gunicorn running in a Docker with this start command
...ANSWER
Answered 2021-Dec-08 at 14:23Unless you have enabled CPU is always allocated, background threads and processes might stop receiving CPU time after all HTTP requests return. This means background threads and processes can fail, connections can timeout, etc. I cannot think of any benefits to running background workers with Cloud Run except when setting the --cpu-no-throttling flag. Cloud Run instances that are not processing requests, can be terminated.
Signal 6 means abort which terminates processes. This probably means your container is being terminated due to a lack of requests to process.
Run more workloads on Cloud Run with new CPU allocation controls
What if my application is doing background work outside of request processing?
QUESTION
I was trying to consume a soap service in python with zeep. I've consumed several soap services with zeep as well. But for a particular soap service, a weird response in returning, unlike a well-organized dictionary.
My python code is below:
...ANSWER
Answered 2022-Jan-31 at 05:44Your requested WSDL URL contains https protocol and you are calling http request.
Please call this url : https://trx.*********ast.co.id/Webservice/b******ervice?wsdl
QUESTION
I am calling an XML webservice. I am using the following function:
...ANSWER
Answered 2022-Jan-10 at 16:44The ProcessShipmentAsync
method is decorated with a FaultContractAttribute
, which specifies the type of the error details, here : UPS.ShipServiceReference.ErrorDetailType[]
.
QUESTION
In my Android project, I want to store an API key in a secured manner. That key is generated from outside the app and need to be stored somehow in the app before building the app.
I've seen some examples of how to use the KeyStore (like this or this), but as far as I understand, those are solutions to store secret keys generated during runtime, and not keys that I would store somewhere in my code.
I've also checked the other methods explained here, but they look like the API key could quite easily be retrieved thanks to reverse engineering.
I also don't want to store my key in my code, also because it could easily be retrieved via reverse engineering.
The purpose of it is to be able to send that key everytime I call a webservice that I've made, so I'm sure (or almost sure) that the call comes from the original app that I'm making and that will be published on the Play Store, and not from elsewhere.
I'm far from being a security expert, so any help would be appreciated.
Thanks.
...ANSWER
Answered 2022-Jan-03 at 11:06The purpose of it is to be able to send that key everytime I call a webservice that I've made, so I'm sure (or almost sure) that the call comes from the original app that I'm making and that will be published on the Play Store, and not from elsewhere.
This is a very hard task to achieve, but not impossible one and here is where one needs to make a deep dive in mobile API security and understand the mechanics behind it.
It's fundamental to have a clear understand between the difference of who is in the API request versus what is making that API request, otherwise any security solution you may devise/use may not have the intended results.
The Difference Between WHO and WHAT is Accessing the API ServerI wrote a series of articles around API and Mobile security, and in the article Why Does Your Mobile App Need An Api Key? you can read in detail the difference between who and what is accessing your API server, but I will extract here the main takes from it:
The what is the thing making the request to the API server. Is it really a genuine instance of your mobile app, or is it a bot, an automated script or an attacker manually poking around your API server with a tool like Postman?
The who is the user of the mobile app that we can authenticate, authorize and identify in several ways, like using OpenID Connect or OAUTH2 flows.
So, you need to think about the who as the user your API server will be able to Authenticate and Authorize access to the data, and you need to think about the what as the software making that request in behalf of the user.
REVERSE ENGINEERINGI also don't want to store my key in my code, also because it could easily be retrieved via reverse engineering.
That's very true, it's more or less easily achieved depending on the method used to hide the API key, as per the ones you mention:
I've also checked the other methods explained here, but they look like the API key could quite easily be retrieved thanks to reverse engineering.
No matter how secure the API key has been stored, be it in the Android Keystore, encrypted, obfuscated, etc, at some point the API key will need to be in plain text to be sent on the API request header, and in this moment it will be vulnerable to be extracted via static reverse engineering, via a MitM attack or via an instrumentation framework
I have wrote the article How to Extract an API key from a Mobile App with Static Binary Analysis to illustrate how easy it can be done:
The range of open source tools available for reverse engineering is huge, and we really can't scratch the surface of this topic in this article, but instead we will focus in using the Mobile Security Framework(MobSF) to demonstrate how to reverse engineer the APK of our mobile app. MobSF is a collection of open source tools that present their results in an attractive dashboard, but the same tools used under the hood within MobSF and elsewhere can be used individually to achieve the same results.
During this article we will use the Android Hide Secrets research repository that is a dummy mobile app with API keys hidden using several different techniques.
I also wrote another article to achieve it during runtime, Steal that Api Key with a Man in the Middle Attack:
In order to help to demonstrate how to steal an API key, I have built and released in Github the Currency Converter Demo app for Android, which uses the same JNI/NDK technique we used in the earlier Android Hide Secrets app to hide the API key.
So, in this article you will learn how to setup and run a MitM attack to intercept https traffic in a mobile device under your control, so that you can steal the API key. Finally, you will see at a high level how MitM attacks can be mitigated.
An instrumentation framework can also be used during runtime to hook into the code that uses the API key in order to extract it. For example with the popular Frida framework:
Inject your own scripts into black box processes. Hook any function, spy on crypto APIs or trace private application code, no source code needed. Edit, hit save, and instantly see the results. All without compilation steps or program restarts.
So, no matter what it's done to secure the API key, once it's on the API request will be vulnerable to be extracted.
MOBILE API SECURITYAnything that runs on the client side and needs some secret to access an API can be abused in different ways and you can learn more on this series of articles about Mobile API Security Techniques. This articles will teach you how API Keys, User Access Tokens, HMAC and TLS Pinning can be used to protect the API and how they can be bypassed.
POSSIBLE SOLUTIONSI recommend you to read this answer I gave to the question How to secure an API REST for mobile app?, especially the sections Hardening and Shielding the Mobile App, Securing the API Server and A Possible Better Solution.
The possible best solution for your problem is known by Mobile App Attestation, that will let your backend know that what is making the request is indeed a genuine and untampered version of your mobile app, as you wish to achieve:
Do You Want To Go The Extra Mile?The purpose of it is to be able to send that key everytime I call a webservice that I've made, so I'm sure (or almost sure) that the call comes from the original app that I'm making and that will be published on the Play Store, and not from elsewhere.
In any response to a security question I always like to reference the excellent work from the OWASP foundation.
For APISFor Mobile AppsThe OWASP API Security Project seeks to provide value to software developers and security assessors by underscoring the potential risks in insecure APIs, and illustrating how these risks may be mitigated. In order to facilitate this goal, the OWASP API Security Project will create and maintain a Top 10 API Security Risks document, as well as a documentation portal for best practices when creating or assessing APIs.
OWASP Mobile Security Project - Top 10 risks
The OWASP Mobile Security Project is a centralized resource intended to give developers and security teams the resources they need to build and maintain secure mobile applications. Through the project, our goal is to classify mobile security risks and provide developmental controls to reduce their impact or likelihood of exploitation.
OWASP - Mobile Security Testing Guide:
The Mobile Security Testing Guide (MSTG) is a comprehensive manual for mobile app security development, testing and reverse engineering.
QUESTION
I need to render an html code I receive from an API.
In Rails 6 : I was doing this in my controller, and it was working fine. I called the webservice I received the response, and I was redirected to the code generated by the render. Fine !
...ANSWER
Answered 2021-Dec-18 at 04:30I figured it out you while posting my question. The error message seems like a Turbo error. I had to had data-turbo false to my form.
QUESTION
I'm trying to run an AJAX
Webservice
request on a VB ASP.NET page.
When the page loads, I'm trying to call the webservice but I get a 500
error in the console.
My WebService file looks like this:
...ANSWER
Answered 2021-Dec-29 at 03:47Ok, assuming both pages are in the SAME folder - at the same level?
Then this should work:
QUESTION
In this line DispatchQueue.main.async
I get this error:
...Type of expression is ambiguous without more context
ANSWER
Answered 2021-Nov-10 at 16:04The error (which is admittedly nondescriptive and unhelpful here) is because you're trying to set [ProductViewModel]
(which is what your map
returns) to productList
which is of the type [Product]
.
ProductViewModel
doesn't seem to have a purpose here -- it's just an identical wrapper around product. You can change your code inside the do
block to this:
QUESTION
This is a follow up to the successful call using Netsuite Token Based Authentication (TBA) REST webservice,
I would like to get some guidance on how to perform a query.
I am supposed to read records like this (please see screenshot)
- how can I perform a specifc query (by table for a list of records and also specific record) ?
https://gist.github.com/axilaris/4386c3537d04737d3775c156562b7545 <-- here is the python code for the TBA that has worked successful. I would like to know how to construct the next step on how to perform the query and read specific record (as shown in the screenshot).
This is a custom record with an ID like this customrecord1589
...ANSWER
Answered 2021-Oct-15 at 12:40To query a specific record: You're going to need to create/ deploy a RESTlet in Netsuite similar to the following:
QUESTION
This question is somehow related to my last question, because it is the same project but now I am trying to go one more step forward.
So, in my previous question I only had one table; this time I have two tables: the new second table is supposed to contain related attributes for the rows of the first table, in a OneToMany relationship. So, I store a ForeignKey in the second table that would store the Row ID of the first table's related row (obviously).
The problem is this: the intention is creating both registers (parent and child) at the same time, using the same form, and ParentTable uses AUTO_INCREMENT for his PrimaryKey (AKA ID).
Due to how RoomDb works, I do the creation using a POJO: but after insertion, this POJO won't give me the auto-generated ID as far as I know... so, the only workaround I am able to imagine is, when submitting the form, first make the INSERT for the parent, then using one of the form's fields that created the parent to make some kind of "SELECT * FROM parent_table WHERE field1 LIKE :field1", retrieving the ID, and then use that ID to create the child table's POJO and perform the next INSERT operation. However I feel something's not right about this approach, the last time I implemented something similar this way I ended up with a lot of Custom Listeners and a callback hell (I still have nightmares about that).
About the Custom Listeners thing, it is the solution I ended up choosing for a different problem for a different project (more details about it in this old question). Taking a look to that old question might help adding some context about how misguided I am in MVVM's architecture. However, please notice the current question has nothing to do with WebServices, because the Database is purely local in the phone's app, no external sources.
However, I am wondering: isn't this overkill (I mean the INSERT parent -> SELECT parentID -> INSERT child
thing)? Is it inevitable having to do it this way, or there is rather a more clean way to do so?
The "create method" in my Repository class looks like this:
...ANSWER
Answered 2021-Oct-08 at 08:48You are on the right track. A clean way would be to wrap it in a function like this:
QUESTION
Hy!
I'm developing a C# SOAP service to communicate with one of our governmental services. They also use SOAP for communication, but now they introduced two new endpoints that handle requests very differenty. The first thing that I noticed is that when I called $SoapClient->Request(...)
from the PHP code of the client app, it failed with the error Looks like we got no XML document
. The only way to get the actual response is to try-catch the SoapFault
and then call$response = $SoapClient->__getLastResponse()
to read it. It was indeed not an xml, but a binary format, kind of like the source of E-mail attachments.
After I figured it out, and downloaded the PDF file, it was still malformed. First I think that PHP is messing up something, but then I looked at the logs of the WebService and it was already malformed. I tried many different encodings with StreamReader
, with no luck. Then I changed it to BinaryReader
for that two endpoints. It's now way closer to the response I'm looking for, but still, there are seemingly random garbage characters included, like shown on this screenshot:
The left side is what I'm looking for, and the right is what I got.
My code:
...ANSWER
Answered 2021-Sep-02 at 23:48You are getting a multipart response so you need to parse it to get the parts. I will provide a sample a solution using the Microsoft.AspNet.WebApi.Client NuGet package that includes extension methods for easier processing of such content. Since you use the old now obsolete HttpWebRequest you need first to transform the stream you get to a HttpContent object and then you can get a MultipartMemoryStreamProvider
object from it using the extension method ReadAsMultipartAsync
. This object has an array of contents so you can read each of the parts.
Here is your code changed to read the PDF part as string.
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Vulnerabilities
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Install webservice
You can use webservice like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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