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##########################
# Dennis's Code Snippets #
##########################


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###
php
###

Non-Curl Post in PHP
Make a post request and handle response

$url = 'http://server.com/path';
$data = array('key1' => 'value1', 'key2' => 'value2');

// use key 'http' even if you send the request to https://...
$options = array(
    'http' => array(
        'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
        'method'  => 'POST',
        'content' => http_build_query($data)
    )
);
$context  = stream_context_create($options);
$result = file_get_contents($url, false, $context);
if ($result === FALSE) { /* Handle error */ }

var_dump($result);

Google reCaptcha v2 in PHP
Verification code for google's reCaptcha system, version 2. This is for a checkbox style verification.

// URL to verify reCaptcha was successful
$url = 'https://www.google.com/recaptcha/api/siteverify';

// Parameters to pass in POST
$g_response = $_POST['g-recaptcha-response'];
$g_secret = 'yourSecretHere';
$data = array(
    'secret' => $g_secret,
    'response' => $g_response,
);

// config context options
$options = array(
    'http' => array(
        'header' => "Content-type: application/x-www-form-urlencoded\r\n",
        'method' => 'POST',
        'content' => http_build_query($data)
    )
);

// create context and get result
$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);

// Check if valid result from reCaptcha verification
if ($result === FALSE) {
    // bad request handler
} else {
    // decode response to JSON
    $g_result = json_decode($result);

    // Check if reCaptcha was validated
    if (!$g_result->success) {
        // bad reCaptcha handler
    }
    // Let page load normally if reCaptcha was successfully validated.
}

Laravel - Moodle API Request
Example of an API call to Moodle from Laravel

// Build parameters for API query.
$params = [
    'wsfunction' => 'core_enrol_get_users_courses',
    'moodlewsrestformat' => 'json',
    'userid' => $userID,
];

// Add the moodle token to the request
$params['wstoken'] = env('MOODLE_TOKEN', 'moodle_token');

// Build the request URL
$url = rtrim(env('MOODLE_URL'), '/') .
    '/webservice/rest/server.php?' .
    http_build_query($params);

file_get_contents($url, false, stream_context_create([
    'ssl' => [
        'verify_peer' => false,
        'verify_peer_name' => false
    ]
]));

Laravel - Modify JSON
Add a new item to a JSON array that belongs to an object and is stored.

function addSource($source)
{
    $data = $this->data;
    $arr = [];

    if(isset($this->data['target'])) $arr = $data['target'];

    array_push($arr, $source);
    $data['target'] = $arr;
    $this->data = $data;

    $this->save();
}

Symfony Callback Constraints
Symfony form builder - Callback constraints using closure to compare against other form fields

'constraints'     => array(
    new Callback(function($zip, ExecutionContextInterface $context) {
        $addressType = $context->getObject()->getParent()['summ_address_type']->getData();
        if($addressType == "Domestic" && !$zip) {
            $context->buildViolation('A zipcode is required for domestic addresses.')->addViolation();
        }
    })
)

AWS S3 Client
Create an S3 Client in PHP using the AWS PHP SDK

$s3Client = S3Client::factory(array(
    'region' => $region,
    'credentials' => array(
        'key' => $key,
        'secret' => $secret
    )
));

Upload File to S3
Using AWS's PHP SDK, upload a file from a request to an S3 bucket

$file           = $request->files->get('fileInput');
$documentName   = 'thisfile.ext'; // based on framework, methods for getting name will vary
$fileName       = time() . $documentName; // ensuring minimal chance of duplicate file names in bucket
$bucket         = $this->getParameter('aws_config')['bucket'];

$s3Client = $this->getS3Client();
$s3Client->putObject(array(
    'Bucket'    => $bucket,
    'Key'       => $fileName,
    'Body'      => fopen($file, 'r+'),
    'Metadata'  => array()
));



####
bash
####

24 Hour Weather Report (CLI)
From the command line, get a simple weather report.

#!/bin/bash

# Check for w3m install on Mac
install=0;

command -v w3m >/dev/null || {
	install=1
	echo >&2 "I require w3m but it's not installed. Install? (Y/n)"
}

if [ "$install" = "1" ] 
then
	read userAnswer
	
	if [ "$userAnswer" = "Y" ]
	then
		echo "installing w3m"
		command -v brew update >/dev/null || {
			echo >&2 "I require brew to install w3m. Please install homebrew."
			break
		}
		brew install w3m
		w3m -dump weather.dennissauve.com | sed -n 13,20p
	else
		echo "aborting"
	fi
else
	w3m -dump weather.dennissauve.com | sed -n 13,20p
fi

Kill All PHP Processes
On a unix system, kill all running php processes

kill $(ps aux | grep '[p]hp' | awk '{print $2}')

SSH Config
Example of SSH Config file

Host example
    User exampleuser
    HostName cloud.example.com
    IdentityFile ~/.ssh/exampleKeyFile.pem

Restart VirtualBox Mac
Restarts with the startup script, useful for troubleshooting VirtualBoxCLI errors

sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart

Wake me up...
September Cron Example

59 23 30 9 * ~/scripts/wake.sh



###
css
###

No HTML Button Outline
Remove that damn pesky blue outline from your beautiful buttons

.button:focus{
    outline: none;
}

Absolute Center HTML El
Use CSS to absolutely center a CSS element

.main-header {
    display: inline-block;
    position: absolute;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
}

HTML bgcolor for print
Element styling to ensure the correct colors show for printing

body {
    -webkit-print-color-adjust: exact;
}



#####
regex
#####

Regex for ML tags
A regex pattern to identify HTML/XML tags

<[^>]*>



##########
apacheconf
##########

Apache Force HTTPS
Use the .htaccess file to force https

# Force HTTPS
RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]



##########
typescript
##########

Load in Service 

constructor( private offenseCategoryApiService : OffenseCategoriesApiService) {
    this.offenseCategoryApiService.getAll().toPromise().then();

Angular KendoGrid Loading Logic
Controls KendoGrid loading spinners display

@ViewChild('noRecordsTemplate', {static: false}) noRecordsTemplate;
noDataMessage = "<br/><br/>";
isDataLoading: boolean = false;

this.isDataLoading = true;
this.noDataMessage = result.total == 0 ? "No Records to Display" : "<br/><br/>";
this.isDataLoading = false;

Form Loading
Some basic form loading logic for and Angular form

@Component({
  selector: 'app-my-form',
  template: `
    <div class="grid-wrapper">
      <form>...</form>
      <div *ngIf="isLoading" class="k-i-loading"></div>
    </div>`,
  styles: [`
    .grid-wrapper {
      position: relative;
    }
    .k-i-loading {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      font-size: 64px;
      background-color: rgba(255,255,255,.3);
      color: #ff6757;
    }
  `]
})
export class MyFormComponent {
  private isLoading;

  // Whenever you're done loading
  this.isLoading = false;
}

Angular Form Group
Adding a form control w/validator

let editForm = new FormGroup({
    formControlName: new FormControl(defaultItem, Validators.required),
});

Angular Provide Download from API
Passing through a download to the end user, using an api service

import { HttpClient } from "@angular/common/http";
import { saveAs } from "file-saver";

@Injectable()
export class ApiService {
  constructor(
      private http: HttpClient
  ) {
  }

  getFile(path: string): void {
    const url = `${environment.apiUrl}${path}`;

    // cast to json make interpreter happy, @see https://github.com/angular/angular/issues/18586
    const options = { responseType: 'blob' as 'json' };
    const req = this.http.get<Blob>(url, options);

    req.subscribe((data) => {
      saveAs(data, 'info');
    });
  }
}

Angular: Element in ViewPort
Be able to see in Angular if an element is currently in the viewport

// Must be passed a ViewChild.nativeElement
isInViewport(elem) {
  let bounding = elem.getBoundingClientRect();
  return (
      bounding.top >= 0 &&
      bounding.left >= 0 &&
      bounding.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
      bounding.right <= (window.innerWidth || document.documentElement.clientWidth)
  );
};

Time Difference from DateTimes
Get the Day:Hour:Minute:Second time difference between two dates

getDateTimeDiff(a: string, b: string) {
    let aTime = new Date(a);
    let bTime = new Date(b);
    let diff = Math.floor((aTime.getTime() - bTime.getTime()) / 1000);
    
    let days = Math.floor(diff / 86400);
    diff = diff - (days * 86400);
    let hours = Math.floor(diff / 3600);
    diff = diff - (hours * 3600);
    let minutes = Math.floor(diff / 60);
    diff = diff - (minutes * 60);
    
    return `${days.toString()}:${hours.toString()}:${minutes.toString()}:${diff.toString()}`;
}

Await Observable (finally)
Await on an observable's next n emit(s)

// n is the number of emits from the subscription
const n = 1
await subscription.take(n).toPromise();



##
c#
##

dotnet ModelState Dump
Helps with troubleshooting and debugging where model states may be a problem

var allErrors = ModelState.Values.SelectMany(v => v.Errors.Select(b => b.ErrorMessage));



####
html
####

Angular KendoGrid Loading Template
Shows a loading spinner in a kendo grid

<kendo-grid [data]="yourData" [loading]="isDataLoading">
    <ng-template #noRecordsTemplate kendoGridNoRecordsTemplate>
      <div [innerHTML]="noDataMessage"></div>
      </ng-template>
      ...
</kendo-grid>

Angular KendoGrid Id Link
Template for kendo-grid-column to be an edit link

<kendo-grid-column>
    <ng-template kendoGridCellTemplate let-dataItem>
        <a style="text-decoration: underline" [routerLink]="[dataItem.id]+'/edit'">{{ dataItem.id }}</a>
    </ng-template>
</kendo-grid-column>

CSS Pagebreak for Printing
CSS style and HTML div for creating pagebreaks when printing

<style>
@media print {
    .pagebreak {
        clear: both;
        page-break-after: always;
    }
}
</style>

<!-- page 1 content here -->

<div class="pagebreak"></div>

<!-- page 2 content here -->



######
dotnet
######

Filtering by apiRecordRequest - dotnet core
Example of filtering through apiRecordRequest filters - assumes the query has already been made, and refines it

foreach (var filter in apiRecordRequest.Filter.Filters)
{
    if (filter.Field == "id")
    {
        query = query.Where(x => x.Id == id);
    }
    // ... and so on and on
}



###
sql
###

Search for column name
Search DB tables for columns with a keyword in its name

select t.table_schema,
       t.table_name
from information_schema.tables t
inner join information_schema.columns c on c.table_name = t.table_name 
                                and c.table_schema = t.table_schema
where c.column_name = 'last_name'
      and t.table_schema not in ('information_schema', 'pg_catalog')
      and t.table_type = 'BASE TABLE'
order by t.table_schema;



#####################
https://0daymusic.org
#####################

BarrySkedo 

Hello, 
 
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* Server capacity: 440 TB MP3, FLAC, labels, music videos. 
* Supports: FTP, FTPS (File Transfer Protocol Secure), SFTP, and HTTP, HTTPS. 
* Daily updates: 30-100 GB, 300-2000 albums, web, promo, CDM, CDR, CDS, EP, LP, vinyl... 
* Unlimited download speed. 
* Files available anytime. 
* Over 17 years of archive. 
* Total server speed: 1 Gbps. 
* User-friendly. Most genres are sorted by day. 
 
0-DAY TEAM



#########################################
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#########################################

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