sanitize | bringing sanity to world of messed-up data
kandi X-RAY | sanitize Summary
kandi X-RAY | sanitize Summary
sanitize is a Python module for making sure various things (e.g. HTML) are safe to use. It was originally written by Mark Pilgrim and is distributed under the BSD license.
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Top functions reviewed by kandi - BETA
- Convert HTML source to HTML
- Add an unknown end tag
- Return the assembled string
- Feed data
- Process unknown starttag
- Normalize attributes
- Resolve a URI
- Process unknown tags
- Returns a list of Unicode characters
- Detect the encoding of a given text string
- Check if a string starts with a BOM
- Convert to ASCII
- Parse a name
- Process data
- Reset the processor
- Resets the parser
- Handle unknown tags
- Process HTML data
sanitize Key Features
sanitize Examples and Code Snippets
Community Discussions
Trending Discussions on sanitize
QUESTION
Consider the following code example:
...ANSWER
Answered 2022-Mar-28 at 13:39The reason of the SEGV is because the new operator calls the class default constructor, it is where the initialization of the non-static data members is done, in this case setting x to 2 and rx to x.
When you allocate the memory with malloc the default constructor is not called. So the SEGV rises because rx is never set to point to x, it is an undefined behavior.
You have to call the default constructor explicitly, with "new(f2) Foo", it is called placement new operator.
QUESTION
After upgrading my webpack from v4 to v5, I got this error that is getting me a hard time debugging.
...ANSWER
Answered 2021-Nov-30 at 00:05For my version of this error, the issue seemed to be that I was importing a file with an alias in webpack from within the same directory.
To give an example, I had this directory setup:
QUESTION
I am trying to include LateX formulas inside a table and I am using the MathJack library to do so. Everthing is working smoothly outside a modalDialog, but when the table is produced within the modalDialog, it does not show as expected. I guess it has do to with what is written in the help page "It only needs to be called once in an app unless the content is rendered after the page is loaded, e.g. via renderUI(), in which case we have to call it explicitly every time we write math expressions to the output.". But I can't figure out how to solve the issue.
Here is a repex :
...ANSWER
Answered 2022-Feb-17 at 17:27Oddly, that works like this:
QUESTION
I'm hitting an occasional crash in some code which uses Swift's new concurrency features. This crash never seems to happen on development builds, either in the simulator or when I install the code on a device directly from Xcode. However it's happening pretty frequently when folks install the code from TestFlight.
The actual crash is this:
...ANSWER
Answered 2022-Feb-10 at 13:26You cannot use semaphores in conjunction with async-await. See Swift concurrency: Behind the scenes:
[Primitives] like semaphores ... are unsafe to use with Swift concurrency. This is because they hide dependency information from the Swift runtime, but introduce a dependency in execution in your code. Since the runtime is unaware of this dependency, it cannot make the right scheduling decisions and resolve them. In particular, do not use primitives that create unstructured tasks and then retroactively introduce a dependency across task boundaries by using a semaphore or an unsafe primitive. Such a code pattern means that a thread can block indefinitely against the semaphore until another thread is able to unblock it. This violates the runtime contract of forward progress for threads.
You might consider testing with the LIBDISPATCH_COOPERATIVE_POOL_STRICT
environment variable as discussed here, in the same video.
You ask:
I'm trying to bridge the divide between synchronous and asynchronous code (perhaps the wrong way).
You should refactor the code that calls this synchronous method to adopt asynchronous pattern, and then excise all blocking API (e.g., semaphore wait
, dispatch group wait
, etc.). Those were anti-patterns in the GCD world and are to be avoided within Swift concurrency. I understand why developers who are unfamiliar with asynchronous programming are so attracted to those synchronous anti-patterns, but it has always been a mistake, and should be excised from one’s code.
Bottom line, in Swift concurrency one must “maintain a runtime contract that threads are always able to make forward progress.” Just embrace asynchronous patterns (i.e., stay within async-await without any old-school thread-blocking techniques) and you should be good.
FWIW, the Swift concurrency: Update a sample app shows interesting techniques for incrementally updating an old app. E.g., mark this blocking method as deprecated, and then the compiler will warn you where it is called and you can direct your refactoring efforts to those offending routines.
QUESTION
I'm trying out the new strapi v4 right now (4.0.0) community edition. I've got a custom controller which queries for the current user and (in the future) fetches related objects.
When I did this with strapi v3 I used the built-in sanititzeEntitiy
- helper function to remove sensitive fields from the user instance. In v4 however, this function appears to not exist anymore and I can't figure out how to achieve this.
Is there anyone that can help me with this? My code so far is:
...ANSWER
Answered 2021-Dec-07 at 16:54In Strapi v4 it looks like it's replaced by sanitizeOutput
function. It accepts the entity but looks like it needs context (ctx
) to be passed too. It is not described anywhere in the official documentation though.
QUESTION
I am working on a Next.js project using TypeScript and for testing I use Jest and React Testing Lib. However, I encounter a SyntaxError: Cannot use import statement outside a module for components where I import rehype-raw.
As far as I understand this, Jest does not support ES6 so node_modules may need to be transformed. This can be configured using transformIgnorePatterns
. For example if rehype-raw
is causing this error using "transformIgnorePatterns": ["node_modules/(?!rehype-raw)/"]
should allow transformation of the rehype-raw
but no other module. And thus solve this error.
However, this does not work for me. But idk why and how I can solve this. No suggested solution I have found could solve this problem. I have attached my error output, jest.config.js and babel.rc file below.
Error output
...ANSWER
Answered 2022-Jan-30 at 16:55Did you already use type:"module" in package.json?
QUESTION
I have upgraded my angular to angular 13. when I run to build SSR it gives me following error.
...ANSWER
Answered 2022-Jan-22 at 05:29I just solve this issue by correcting the RxJS version to 7.4.0
. I hope this can solve others issue as well.
QUESTION
From various sources, I have come to the understanding that there are four main techniques of string formatting/interpolation in Python 3 (3.6+ for f-strings):
- Formatting with
%
, which is similar to C'sprintf
- The
str.format()
method - Formatted string literals/f-strings
- Template strings from the standard library
string
module
My knowledge of usage mainly comes from Python String Formatting Best Practices (source A):
str.format()
was created as a better alternative to the%
-style, so the latter is now obsolete- However,
str.format()
is vulnerable to attacks if user-given format strings are not properly handled
- However,
- f-strings allow
str.format()
-like behavior only for string literals but are shorter to write and are actually somewhat-optimized syntactic sugar for concatenation - Template strings are safer than
str.format()
(demonstrated in the first source) and the other two methods (implied in the first source) when dealing with user input
I understand that the aforementioned vulnerability in str.format()
comes from the method being usable on any normal strings where the delimiting braces are part of the string data itself. Malicious user input containing brace-delimited replacement fields can be supplied to the method to access environment attributes. I believe this is unlike the other ways of formatting where the programmer is the only one that can supply variables to the pre-formatted string. For example, f-strings have similar syntax to str.format()
but, because f-strings are literals and the inserted values are evaluated separately through concatenation-like behavior, they are not vulnerable to the same attack (source B). Both %
-formatting and Template strings also seem to only be supplied variables for substitution by the programmer; the main difference pointed out is Template's more limited functionality.
I have seen a lot of emphasis on the vulnerability of str.format()
which leaves me with questions of what I should be wary of when using the other techniques. Source A describes Template strings as the safest of the above methods "due to their reduced complexity":
The more complex formatting mini-languages of the other string formatting techniques might introduce security vulnerabilities to your programs.
- Yes, it seems like f-strings are not vulnerable in the same way
str.format()
is, but are there known concerns about f-string security as is implied by source A? Is the concern more like risk mitigation for unknown exploits and unintended interactions?
I am not familiar with C and I don't plan on using the clunkier %
/printf
-style formatting, but I have heard that C's printf
had its own potential vulnerabilities. In addition, both sources A and B seem to imply a lack of security with this method. The top answer in Source B says,
String formatting may be dangerous when a format string depends on untrusted data. So, when using str.format() or %-formatting, it's important to use static format strings, or to sanitize untrusted parts before applying the formatter function.
- Do
%
-style strings have known security concerns? - Lastly, which methods should be used and how can user input-based attacks be prevented (e.g. filtering input with regex)?
- More specifically, are Template strings really the safer option? and Can f-strings be used just as easily and safely while granting more functionality?
ANSWER
Answered 2022-Jan-18 at 12:53It doesn't matter which format you choose, any format and library can have its own downsides and vulnerabilities. The bigger questions you need to ask yourself is what is the risk factor and the scenario you are facing with, and what are you going to do about it. First ask yourself: will there be a scenario where a user or an external entity of some kind (for example - an external system) sends you a format string? If the answer is no, there is no risk. If the answer is yes, you need to see whether this is needed or not. If not - remove it to eliminate the risk. If you need it - you can perform whitelist-based input validation and exclude all format-specific special characters from the list of permitted characters, in order to eliminate the risk. For example, no format string can pass the ^[a-zA-Z0-9\s]*$ generic regular expression.
So the bottom line is: it doesn't matter which format string type you use, what's really important is what do you do with it and how can you reduce and eliminate the risk of it being tampered.
QUESTION
I'm sure this question has been asked a lot (in many ways) but need help with extracting data from two tables matching certain data. It is probably a simple answer but I'm just starting on SQL.
I have two tables:
parts table (p)
code code_desc part_no part 23 Fruits 001 Banana 23 Fruits 002 Apple 24 Veggies 010 Celery 24 Veggies 010 Onion 25 Misc 125 Sanitizercodes table (c)
code contract 23 Albany 24 Detroit 25 ChicagoI simply want to display the code description, matching codes on each table. e.g.,
CD contract descrip 23 Albany Fruits 23 Albany Fruits 24 Detroit Veggies 24 Detroit Veggies 25 Chicago SanitizerI have been tinkering with joins, left and right (literally), but seem to be getting ALL the rows returned from the first table.
CD contract descrip 23 Albany Fruits 24 Detroit Veggies 25 Chicago Sanitizerthis is one of the code examples I have, using inner join. I've tried left/right outer join as well, same results.
...ANSWER
Answered 2022-Jan-04 at 22:20I think since you state the query you have is returning all rows from the first table (why wouldn't it?) you just need to add distinct
to your existing query - although the column aliases you've used do not align with the tables in your question.
QUESTION
I'm learning about different memory orders.
I have this code, which works and passes GCC's and Clang's thread sanitizers:
...ANSWER
Answered 2022-Jan-04 at 16:06The thread sanitizer currently doesn't support std::atomic_thread_fence
. (GCC and Clang use the same thread sanitizer, so it applies to both.)
GCC 12 (currently trunk) warns about it:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install sanitize
You can use sanitize 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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