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Software engineering facts, information, and skills from July, 2019

Is autoescape off in django safe?

Priya Philip 3 months, 2 weeks ago

The autoescape would be a protection against cross site scripting, not sql injection. Turning autoescape off would mean you trust what is in "text", wherever it came from, not to be malicious, (ie, it should be impossible for a user to create or modify what is in text). If that assumption is valid, then you are safe against cross site scripting, otherwise, that is a security hole.

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Django Python
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Django Signals

Priya Philip 3 months, 3 weeks ago

Django Signals allows decoupled (independent) applications get notified when certain events occur elsewhere in the framework with the help of 'signal dispatcher'.  The 'signal dispatcher' is  Django's mechanism used  to send and receive messages between different parts of an application which are instances of Signal, via the connect method.

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HttpRequest methods

Priya Philip 4 months ago
HttpRequest represents an incoming HTTP request, including all HTTP headers and user-submitted data

HttpRequest attributes

Priya Philip 4 months, 1 week ago

Django uses request and response objects to pass state through the system. When a page is requested, Django creates an HttpRequest object that contains metadata about the request. Then Django loads the appropriate view, passing the HttpRequest as the first argument to the view function. Each view is responsible for returning an HttpResponse object.

Merging two Dictionaries- Python

Priya Philip 4 months, 1 week ago

There are various ways in python to merge Dictionaries. Few of them are shown below.

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Git aliases

Priya Philip 4 months, 1 week ago

The term 'alias' is synonymous with a shortcut. Alias creation is a common pattern found in other popular utilities like `bash` shell. Aliases are used to create shorter commands that map to longer commands. Aliases enable more efficient workflows by requiring fewer keystrokes to execute a command. 

Get a file's size with C++17

Priya Philip 4 months, 1 week ago

std:: experimental:: filesystem:: file_size

<filesystem> (added in C++17) makes this straightforward.

The as-if rule

Priya Philip 4 months, 1 week ago

Allows any and all code transformations that do not change the observable behavior of the program.

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