signatures | API Server with 90 % Test Coverage in 260 Lines of Code | REST library
kandi X-RAY | signatures Summary
kandi X-RAY | signatures Summary
A simple RESTful API in Go. See this blog post for an explanation on how to build your own.
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Top functions reviewed by kandi - BETA
- NewServer creates a new server instance .
- addIndexToSignatureEmails adds a signature to the database .
- fetchAllSignatures fetches all signatures from database
- NewSession returns a new database session session .
- Database middleware
- Checks the server
signatures Key Features
signatures Examples and Code Snippets
Community Discussions
Trending Discussions on signatures
QUESTION
We are programmatically creating PDF using our in house lib (C++) by adding all the required objects so that PDF readers can render them properly. Currently we are enhancing the lib to support digital signatures in PDF. Our users will use USB token or Windows certificates to sign the PDF. On studying raw PDF file with digital signature, we were able to make sense of all the objects except for the contents of Sig type object.
...ANSWER
Answered 2021-Jun-10 at 16:48Ok, the signature container is embedded correctly.
But there are issues with the signature container itself:
Both in the
SignedData.digestAlgorithms
collection and in theSignerInfo.digestAlgorithm
value you have used the OID of SHA1withRSA, but that is a full signature algorithm, not the mere digest algorithm SHA1 expected there.Then the SHA1 hash of the signed bytes is BB78A402F7A537A34D6892B83881266501A691A8 but the hash you signed is 90E28B8A0D8E48691DAFE2BA10A4761FFFDCCD3D. This might be because you hash buffer2 and
buffer2 has empty contents data (/Contents <>)
The hex string delimiters '<' and '>' also belong to the contents value and, therefore, must also be removed in buffer2.
Furthermore, your signature is very weak:
- It uses SHA1 as hash algorithm. SHA1 meanwhile has been recognized as too weak a hash algorithm for document signatures.
- It doesn't use signed attributes, neither the ESS signing certificate nor the algorithm identifier protection attribute. Many validation policies require such special attributes.
QUESTION
I'm trying to extract method parameters information from Java class bytecode using asm MethodVisitor
. visitParameter
method of MethodVisitor
is not called (because no parameter names are present in compiled class file). How can i get count of method parameters and their types?
The only thing I've found so far is desc
parameter of visitMethod
from MethodVisitor
. I can copy-paste TraceSignatureVisitor
class from asm-util, rewrite about 50 lines of code to store parameters declarations into List/array instead of single StringBuffer
.
Another option is suggested by in answer "https://stackoverflow.com/questions/18061588/get-function-arguments-values-using-java-asm-for-bytecode-instrimentation":
The number of arguments to the method can be computed from the method description using the code in the following gist: https://gist.github.com/VijayKrishna/6160036. Using the
parseMethodArguments(String desc)
method you can easily compute the number of arguments to the method.
From my point of view copy-pasting and rewriting TraceSignatureVisitor
is still better.
But i suppose there should be more simple way to work with method signatures in asm-util. Is there?
...ANSWER
Answered 2021-Jun-14 at 07:55ASM has an abstract for that purpose, Type
.
Instances of Type
may represent a primitive type, a reference type, or a method type. So you can first get a type to represent the method type from the descriptor string, followed by querying it for the parameter types and return type.
QUESTION
In Jetpack compose, we have the option of using rememberCoroutineScope()
as well as using the LaunchedEffect
composable in order to use coroutines / run suspend functions (show snackbars etc).
The convention I've adopted so far is to remember a single coroutine scope at the top of my compose tree, and pass it down via function arguments to places where it is needed. This vaguely seems like a good practice, but on the other hand it's adding extra noise to my function signatures.
Questions- Are there any reasons for preferring the use of
LaunchedEffect
overrememberCoroutineScope()
inside composable functions? - Is it worth the effort to only create / remember a coroutine scope once per compose tree, or should I just call
rememberCoroutineScope()
in each function where a coroutine is actually launched?
ANSWER
Answered 2021-Jun-12 at 23:42Leaving my understanding here:
Question 1:
LaunchedEffect
should be used when you want that some action must be taken when your composable is first launched. For example, when you want to request some data from your ViewModel or run some sort of animation...
rememberCoroutineScope
on the other hand, is specific to store the Coroutine scope allowing the code to launch some suspend
function...
imho, the only relation between them is that you can also use a LaunchedEffect
to launch a coroutine...
Question 2: As you can see in the docs, rememberCoroutineScope
will keep the reference of the coroutine's scope in a specific point of the composition. Therefore, if a given composable is removed from the recomposition, that coroutine will be cancelled automatically. For instance, you have the following composable calls A -> B -> C
. If you remember the coroutine scope in C
and it is removed from the composition, the coroutine is automatically cancelled. But if you remember from A
, pass the scope through B
and C
, use this scope in C
, and then C
is removed, the coroutine will continue running (because it was remembered in A
)...
QUESTION
After running Github extension for VS while my Visual Stuio is still running, I received the error message below. I appreciate some guidance how to resolve this.
Maybe my question should be: if Github is already built-in, I do not see the "Clone Repo" button when I click the Source Control icon on the lefthand-side of the VS window. This is true even when I'm already signed in to Github within VS.
...ANSWER
Answered 2021-Jun-12 at 03:52Github support is now built in the VS2019. You probably have a conflict between the built-in version and your extension. You can safely uninstall your extension.
Did you get it from the marketplace? Those are okay to install while VS is running, they just tell you to restart afterwards. If it's a third-party extensions, installing it while VS is running is probably not a good idea.
Otherwise:
- Make sure you have the latest version of VS2019 (16.10.1 as of this post).
- Check
Tools > Options > Source Control > Plug-in Selection
is set toGit
. - More options will then appear below
Plug-in Selection
that will allow you to set up global and per-repository/solution settings.
The repository window is no longer Source Control or Team Explorer for Git integration. It's been migrated to two panel windows: View > Git Changes
and View > Git Repository
along with an entire menu bar item Git
located next to View
.
QUESTION
I'm needing to verify an HTTP HMAC signature for a program I use (Drone CI, trying to create an extension), but nothing I'm trying is getting the results to match.
Specifically, the HTTP request looks like this:
...ANSWER
Answered 2021-Jun-11 at 01:55They appear to be using an implementation of the http signatures draft.
The linked document explains the way the signature needs to be calculated and how to verify it. But this is probably why your example doesn't work:
2.1.3. headers
OPTIONAL. The
headers
parameter is used to specify the list of HTTP headers included when generating the signature for the message.
Basically the signature doesn't include just the message, probably to prevent replay attacks. Since you just hash the message it is working as intended.
QUESTION
in my actions, I am deleting data as follows
...ANSWER
Answered 2021-Jun-11 at 16:36change your reducer code like this see if it fixes the issue
QUESTION
I am trying to directly connect to MYSQL with Dart using Dart's ffi package and the native C-Connector of MYSQL.
My Dart code is:
...ANSWER
Answered 2021-Jun-11 at 12:15After a bit of looking around, it appears you can create the appropriate type for error
using:
QUESTION
I am working on converting an old JS codebase to TypeScript. I have a rather advanced scenario and I can't figure out how to assign types correctly. I'd like to avoid resorting to the any
type if possible.
To start, I have a base class that establishes a common context and then several dozen classes that extend this base class:
...ANSWER
Answered 2021-Jun-10 at 18:15I'm not sure that there is a truly dynamic solution, but you can use overloads and generics to allow for additional arguments with type matching.
The downside is that you have to include an overload for each additional argument, which means you can't allow for an indefinite number of arguments.
However, it's not difficult to provide enough overloads to satisfy the needs for your own codebase:
QUESTION
I am trying to print a header section to each page of a PDF that gets generated. I'm also using pdf-merger to merge together multiple PDFs. Right now when I execute this code the PDF generated contains multiple documents, as expected. However the Header
section I'm adding only seems to show up in the 2nd and 5th of the documents that are part of the full PDF. I cannot tell from looking at my code why that is happening. I would assume the Header
would be added to each of the documents.
First question: why am I noticing the behavior I am. Understand that would help me know what to adjust. Second question: How can I adjust this code so that the Header
is added to each of the pages of the document?
Here is the section where I pass options to page.pdf()
:
ANSWER
Answered 2021-Jun-10 at 03:26It's hard to tell what's wrong with your code since so many functions are undefined, but here's a minimal, runnable example that adds headers to all pages using the same PDF merger package as you:
QUESTION
I am trying to produce ELMo embeddings for batches of tokenised strings. However I keep receiving the following error:
...ANSWER
Answered 2021-Jun-09 at 15:14It works for me when the trailing spaces in tokens
are removed such that at least one entry does not end in b''
i.e.
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