How to log in a web server with esp8266 client? - arduino

I am struggling to use ESP8266 client to log into my web server (which is running in a PC host in local network). The ESP must login in order to see weather it must activate the sensor connected to it or not. Users can change the state of sensor activation (on/off) by logging in their portal. Therefore the esp8266 must be always aware of that. The way that comes to my mind is that the ESP8266 must log in like other browser clients. First, it should enter the login page through the following code:
client.print(String("GET /public_html/login.php") + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n" +
"\r\n"
);
Then I should post the username and password to the server. Normal human users who log in through a browser log in through the form below:
<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
<div class="form-group <?php echo (!empty($username_err)) ? 'has-error' : ''; ?>">
<label>username</label>
<input type="text" name="username" class="form-control" value="<?php echo $username; >">
</div>
<div class="form-group <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
<label>password</label>
<input type="password" name="password" class="form-control">
</div>
<div class="form-group">
<input type="submit" class="btn btn-primary" value="Login">
</div>
</form>
How can I do the same thing implemented above in ESP8266?

First you have to define a post route at server which can listen to esp post requests.
And you can send a json string from esp with post method which contains encrypted credentials.
Depending on credentials received at server end you can decide whether to authenticate or not the device and respond the same result back to device.

Related

405 (Method Not Allowed) in live Shared hosting - Laravel and Vue3 with Vite

So, this is my first post on stack, if I missed something please let me know.
So I have project that's working well on localhost Dev but when i uploaded to the server the API given 405 method not allowed.
I have a login form:
<form #submit.prevent="login" method="POST">
<input type="hidden" name="_token" :value="form.csrf">
<p><input type="email" name="login" placeholder="Username or Email" v-model="form.email"></p>
<p><input type="password" placeholder="Please Enter Password" v-model="form.password"></p>
<p class="remember_me">
</p>
<p class="submit"><input type="submit" value="Login"></p>
</form>
The form has some inputs, a textarea and a file input. Those are my routes:
Route::middleware('auth:sanctum')->get('/user', function (Request $request) {
return $request->user();
});
Route::controller(AuthController::class)->group(function(){
Route::post('/login', 'login');
});
When I submit the form I get the The GET method is not supported for this route. Supported methods: POST. error.
Here is my Route list :
enter image description here
after everything possible things updating still on same error.
enter image description here
In Chrome network tab showing this
enter image description here
Maybe you guys have any idea what is happening here and point me in the right direction.
Thanks!

How to generate Joomla login token from outside Joomla

Here's the context. I have a Joomla Backend with tons of custom code in a very old Joomla 1.X version. Everything is still surprisingly holding up well. The site owner wants a new front facing website and his company chose WordPress. Website was built, now we want to add a log in form to the Joomla backend from a WP page.
Here's what worked:
Go to Joomla login page (domain.com/administrator)
Copy the HTML form (including hidden input with token)
Paste the HTML and adjust the action attribute of the form
Went to the WP page (domain.com/wordpressFolder/page, entered credentials and it works perfectly!
Obviously these tokens can only be used once. Added a shortcode in WP that gets the form from Joomla and "extract" the token and returns it to the page.
function st_login_form( $atts ) {
$joomla = file_get_contents('http://www.example.com/administrator/index.php');
$doc = new DOMDocument();
$doc->loadHTML($joomla);
$inputs = $doc->getElementsByTagName('input');
$token = $inputs[5]->attributes[1]->nodeValue;
$html = '<form action="https://www.example.com/administrator/index.php" method="post" name="login" id="form-login" style="clear: both;">
<p id="form-login-username">
<label for="modlgn_username">Username</label>
<input name="username" id="modlgn_username" type="text" class="inputbox" size="15">
</p>
<p id="form-login-password">
<label for="modlgn_passwd">Password</label>
<input name="passwd" id="modlgn_passwd" type="text" class="inputbox" size="15">
</p>
<input type="submit" value="Connexion" />
<input type="hidden" name="option" value="com_login">
<input type="hidden" name="task" value="login">
<input type="hidden" name="'.$token.'" value="1">
</form>';
return $html;
}
The code behaves has expected and inspecting the form on the WP page with injected token looks fine, however when logging in it gives me an invalid token error.
I don't quite understand why it works when copy pasting but not when I retrieve the token from PHP. Any clue or potential solutions?
Found my first mistake. The GET is done over HTTP while the POST is sent over HTTPS. Obviously, CSRF token are domain-signed.
Now it simply redirects me to the login page but I'm not logged in.

Make a search form to search with http api

i am new to this matter. I am trying to create a search form, that allows searching a database via http api and display the result on a website. The call requires authorization:
$headers = array ('headers' => array(
'Authorization' => 'bearer' . $token ,
'Content-type' => 'application/json',
'Accept' => 'application/json'));
My search form looks like this:
<form method="GET" accept="application/json" action="https://example.xx/api/v1/products?page=1&size=5&direction=asc&search=value">
<input type="text" name="search" size="40" maxlength="256" value="" placeholder="testsearch">
<input type="submit" name="search_button" value="Search">
</form>
When i enter something into the input field and hit the submit button, the browser displays:
{"error":"unauthorized","error_description":"Full authentication is required to access this resource"}
And in the browsers address field i see:
https://example.xx/api/v1/products?search=testvalue&search_button=Search
Obviously the authorisation is ignored and the url shows that i have left my website.
Do i have to make this work with an action="somephp.php"?
How can i authorize the call from the form and display the response in a website?
Hints much appreciated. theo
Thanks to the german wordpress forum, i found the answer –
The Form:
<form method="post" id="api-result-searchform" action="">
<input type="text" class="search" placeholder="<?php echo esc_attr_x( 'Author?', 'placeholder' ) ?>" value="" name="searchauthor" id="s" title="api-search" />
<input class="button"type="submit" name="search_button" value="Search">
</form>
And the call:
<?php
$searchterm = $_POST['searchauthor'];
$url = 'https://example.de/api/v1/product?search=ti=' . $searchterm;
$response = wp_remote_get($url, $headers);
//etc.
This works well.

set curect address to <form action=">

i create simple plugin wordpress , one validationform.php and rflinsertdb.php
when user click on submit form , i want got rflinsertdb.php the page validation and insert information to db , but wordpress give me Object not found!
The requested URL was not found on this server. The link on the referring page seems to be wrong or outdated. Please inform the author of that page about the error.
this 2 php page in one folder that name in public ,i see to many codes in internet but not help, how can i do that ?
thx alot
i try this codes for action form
<form method="post" action="<?php bloginfo('template_url'); ?>/rflInsertdb.php">
<p id="errorMessage"></p>
<p>name: <input type="text" class="register" name="name" id="name"></p>
<p>family: <input type="text" class="registerForm" id="family" name="family"></p>
<p>numbers :<input type="number" class="registerForm" id="numbers" name="numbers" min="1" max="200" value="1"></p>
<p>tell: <input type="text" class="registerForm" id="tell" name="tell"></p>
<p><input type="submit" value="ثبت" class="registerForm" id="submit" name="submit"></p>
</form>
This happens to you, because you are using template directory for: /rflInsertdb.php
Try to use
<form method="post" action="<?php echo plugin_dir_url( __FILE__ ); ?>/rflInsertdb.php">
If your file is under the public (what is under the plugin dir), then maybe:
<form method="post" action="<?php echo plugin_dir_url( __FILE__ ); ?>/public/rflInsertdb.php">
See here: https://codex.wordpress.org/Function_Reference/plugin_dir_url

wordpress custom contact form html + php inside page

hi everybody i have my contact form ready in html and php (2 different files one html and one php file) and i want to use it in a worpress page.
the user fills the form, selects support department answers the captcha and presses submit button. the form sends all the form data through email to the administrator, a thank you email to the user and redirects to a thank you page.
the html form is
<html>
<body>
<head>
<script src="http://www.google.com/recaptcha/api.js" async defer> </script>
<script type="text/javascript" src="http://www.google.com/recaptcha/api/js/recaptcha_ajax.js"></script>
</head>
<i>Use the form to get in touch with us.</i>
<form action="form.php" method="POST">
<strong>Name:*</strong>
<input style="width:300px;" name="username" type="text" required />
<strong>E-mail Adress:*</strong>
<input style="width:300px;" name="useremail" type="text" required />
<strong>Subject:*</strong>
<input style="width:300px;" name="usersubject" type="text" required />
<strong>Message:*</strong>
<textarea style="width:300px;" cols="40" name="usermessage" rows="5" required></textarea>
<strong>Select Support Department </strong>
<select name="support">
<option style="width:200px;" value="" >Choose Service</option>
<option style="width:200px;" value="support#xxxxxxxx.com" required>Technical support</option>
<option style="width:200px;" value="sales#xxxxxxxxxx.com" required>Sales</option>
<option style="width:200px;" value="info#xxxxxxxxxxx.com" required>Press</option>
<option style="width:200px;" value="info#xxxxxxxxxxx.com" required>Other</option>
</select>
//recaptcha
<div class="g-recaptcha" data- sitekey="------my site key---------"></div>
<input type="submit" value="send" name="submit"/>
//it redirects when you hit submit
<?php
if ( isset( $_POST['submit'] ) ){
header("Location:http://xxxxxxxxx.com/thank-you-messasge/");
}
?>
</form>
</html>
</body>
my form.php is
<?
//set up the message for administrator
$msg="Name:".$_POST["username"]."\n";
$msg .="E-mail:".$_POST["useremail"]."\n";
$msg .="Subject:".$_POST["usersubject"]."\n";
$msg .="Usermessage:".$_POST["usermessage"]."\n";
//set up message for customer
$msg_customer="We received your request and we will answer you within 24 hours.";
$msg_customer.="\n"."xxxxxxxxxxxxxx";
//set up the email for the administrator
$recipient=$_POST["support"];
$subject= "Support Contact Form ";
$mailheaders="From: xxxxxxxx sales#xxxxxxxxx.com \n";
//set up the email for the customer
$recipient_customer=$_POST["useremail"];
$subject_customer= "Support Contact Form ";
$mailheaders_customer="From: xxxxxxxxxx sales#xxxxxxxxxxxxxxx.com \n";
//send the emails
mail($recipient,$subject,$msg, $mailheaders);
mail($recipient_customer,$subject_customer,$msg_customer, $mailheaders_customer);
?>
i want this form to appear in one page and be able to run the php code when the submit button is pressed.
i cannot run the form.php file even if i save it on the root directory.
it seems i am loosing something
thank you very much
To troubleshoot your form, press F12 in your browser to access the developer tools menu, and take a look at what happens on the Network panel when you submit the form. This should give you some clues about what is failing.
Also, you should not be using unfiltered $_POST variables directly, e.g.:
$name = sprintf("Name:%s\n", filter_input(INPUT_POST, 'username', FILTER_SANITIZE_STRING) );
i found out the way:
i copy/pasted the html form inside the page code view and i linked absolutely to my php file
<form action="http://example.com/php_file_directory/form.php" method="POST">

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