First commit of first 4 steps

stripe-archive · Nov 11, 2012 · c289cb2 · c289cb2 · alzoub · Jan 13, 2019
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diff --git a/.gitignore b/.gitignore
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+*.DS_Store
diff --git a/.gitmodules b/.gitmodules
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+[submodule "stripe"]
+	path = stripe
+	url = https://github.com/stripe/stripe-php
diff --git a/README.md b/README.md
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+# Wilde Things - A study in PHP
+
+Wilde Things is a website on which you can buy quotes Oscar Wilde.  This is a PHP demo that demonstrates integrating Stripe, originally done for a General Assembly livestream tutorial on November 14, 2012.
+
+The demo is 7 steps and goes from setting up a simple site for accepting one-time payments to a subscription-based service complete with webhook support.
diff --git a/Step1/README.md b/Step1/README.md
diff --git a/Step1/index.php b/Step1/index.php
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+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>Wilde Things</title>
+  </head>
+  <body>
+<?php
+  require_once('../stripe/lib/Stripe.php');
+  $stripe = array(
+    'secret_key'      => 'sk_test_COES306BuVznThOZkMr8ibAa',
+    'publishable_key' => 'pk_test_fRASYtf5gVfnrjeNS6Z0aqLW'
+    );
+  Stripe::setApiKey($stripe['secret_key']);
+
+  if ($_POST) {
+    $charge = Stripe_Charge::create(array(
+      'card'     => $_POST['stripeToken'],
+      'amount'   => 53500,
+      'currency' => 'usd'
+    ));
+
+    $wildeQuotes = array(
+      "A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.",
+      "Always forgive your enemies; nothing annoys them so much.",
+      "America is the only country that went from barbarism to decadence without civilization in between.",
+      "I think that God in creating Man somewhat overestimated his ability.",
+      "I am not young enough to know everything.",
+      "Fashion is a form of ugliness so intolerable that we have to alter it every six months.",
+      "Most modern calendars mar the sweet simplicity of our lives by reminding us that each day that passes is the anniversary of some perfectly uninteresting event.",
+      "Scandal is gossip made tedious by morality."
+      );
+
+    echo "<h1>Here's your quote!</h1>";
+    echo "<h2>".$wildeQuotes[array_rand($wildeQuotes)]."</h2>";
+  }
+  else
+  { ?>
+    <h2>Wilde Things</h2>
+    <h3>Purchase a quote by Oscar Wilde today! Only $535! Limited supply and going fast, buy now!!</h3>
+
+    <form action="index.php" method="post">
+      <script src="https://button.stripe.com/v1/button.js" class="stripe-button"
+        data-key="<?php echo $stripe['publishable_key']; ?>"
+        data-amount=53500
+        data-description="One Wilde quote"
+        data-label="Buy"></script>
+    </form>
+  <?php
+  }
+?>
+  </body>
+</html>
diff --git a/Step2/index.php b/Step2/index.php
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>Wilde Things</title>
+  </head>
+  <body>
+<?php
+  require_once('../stripe/lib/Stripe.php');
+  $stripe = array(
+    'secret_key'      => 'sk_test_COES306BuVznThOZkMr8ibAa',
+    'publishable_key' => 'pk_test_fRASYtf5gVfnrjeNS6Z0aqLW'
+    );
+  Stripe::setApiKey($stripe['secret_key']);
+
+  if ($_POST) {
+    $error = NULL;
+    try {
+      if (!isset($_POST['stripeToken']))
+        throw new Exception("The Stripe Token was not generated correctly");
+      $charge = Stripe_Charge::create(array(
+        'card'     => $_POST['stripeToken'],
+        'amount'   => 53500,
+        'currency' => 'usd'
+      ));
+    }
+    catch (Exception $e) {
+      $error = $e->getMessage();
+    }
+
+    if ($error == NULL) {
+      $wildeQuotes = array(
+        "A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.",
+        "Always forgive your enemies; nothing annoys them so much.",
+        "America is the only country that went from barbarism to decadence without civilization in between.",
+        "I think that God in creating Man somewhat overestimated his ability.",
+        "I am not young enough to know everything.",
+        "Fashion is a form of ugliness so intolerable that we have to alter it every six months.",
+        "Most modern calendars mar the sweet simplicity of our lives by reminding us that each day that passes is the anniversary of some perfectly uninteresting event.",
+        "Scandal is gossip made tedious by morality."
+        );
+
+      echo "<h1>Here's your quote!</h1>";
+      echo "<h2>".$wildeQuotes[array_rand($wildeQuotes)]."</h2>";
+    }
+    else {
+      echo "<div class=\"error\">".$error."</div>";
+    }
+  }
+
+  if (!$_POST || $error)
+  { ?>
+    <h2>Wilde Things</h2>
+    <h3>Purchase a quote by Oscar Wilde today! Only $535! Limited supply and going fast, buy now!!</h3>
+
+    <form action="index.php" method="post">
+      <script src="https://button.stripe.com/v1/button.js" class="stripe-button"
+        data-key="<?php echo $stripe['publishable_key']; ?>"
+        data-amount=53500
+        data-description="One Wilde quote"
+        data-label="Buy"></script>
+    </form>
+  <?php
+  }
+?>
+  </body>
+</html>
diff --git a/Step3/charge.php b/Step3/charge.php
@@ -0,0 +1,40 @@
+<?php
+  require_once('./header.php');
+
+  if ($_POST) {
+    $error = NULL;
+    try {
+      if (!isset($_POST['stripeToken']))
+        throw new Exception("The Stripe Token was not generated correctly");
+      $charge = Stripe_Charge::create(array(
+        'card'     => $_POST['stripeToken'],
+        'amount'   => 53500,
+        'currency' => 'usd'
+      ));
+    }
+    catch (Exception $e) {
+      $error = $e->getMessage();
+    }
+
+    if ($error == NULL) {
+      $wildeQuotes = array(
+        "A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.",
+        "Always forgive your enemies; nothing annoys them so much.",
+        "America is the only country that went from barbarism to decadence without civilization in between.",
+        "I think that God in creating Man somewhat overestimated his ability.",
+        "I am not young enough to know everything.",
+        "Fashion is a form of ugliness so intolerable that we have to alter it every six months.",
+        "Most modern calendars mar the sweet simplicity of our lives by reminding us that each day that passes is the anniversary of some perfectly uninteresting event.",
+        "Scandal is gossip made tedious by morality."
+        );
+
+      echo "<h1>Here's your quote!</h1>";
+      echo "<h2>".$wildeQuotes[array_rand($wildeQuotes)]."</h2>";
+    }
+    else {
+      echo "<div class=\"error\">".$error."</div>";
+      require_once('./payment_form.php');
+    }
+  }
+  require_once('./footer.php');
+?>
diff --git a/Step3/config.php b/Step3/config.php
@@ -0,0 +1,8 @@
+<?php
+  require_once('../stripe/lib/Stripe.php');
+  $stripe = array(
+    'secret_key'      => 'sk_test_COES306BuVznThOZkMr8ibAa',
+    'publishable_key' => 'pk_test_fRASYtf5gVfnrjeNS6Z0aqLW'
+    );
+  Stripe::setApiKey($stripe['secret_key']);
+?>
diff --git a/Step3/footer.php b/Step3/footer.php
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+  </body>
+</html>
diff --git a/Step3/header.php b/Step3/header.php
@@ -0,0 +1,8 @@
+<?php require_once('./config.php'); ?>
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>Wilde Things</title>
+  </head>
+  <body>
+    <h2>Wilde Things</h2>
diff --git a/Step3/index.php b/Step3/index.php
@@ -0,0 +1,5 @@
+<?php
+  require_once('./header.php');
+  require_once('./payment_form.php');
+  require_once('./footer.php');
+?>
diff --git a/Step3/payment_form.php b/Step3/payment_form.php
@@ -0,0 +1,8 @@
+<form action="charge.php" method="post">
+	<h3>Purchase a quote by Oscar Wilde today! Only $535! Limited supply and going fast, buy now!!</h3>
+    <script src="https://button.stripe.com/v1/button.js" class="stripe-button"
+      data-key="<?php echo $stripe['publishable_key']; ?>"
+      data-amount=53500
+      data-description="One Wilde quote"
+      data-label="Buy"></script>
+</form>
diff --git a/Step4/charge.php b/Step4/charge.php
@@ -0,0 +1,65 @@
+<?php
+  require_once('./header.php');
+  require_once('./db.php');
+
+  if ($_POST) {
+    $error = NULL;
+    try {
+      if (isset($_POST['customer_id'])) {
+        $charge = Stripe_Charge::create(array(
+          'customer'    => $_POST['customer_id'],
+          'amount'      => 53500,
+          'currency'    => 'usd',
+          'description' => 'Single quote purchase after login'));
+      }
+      else if (isset($_POST['stripeToken'])) {
+        // Simple uniqueness check on the email address
+        $existing_customer = get_customer($_POST['email']);
+
+        if ($existing_customer) {
+          throw new Exception("That e-mail address already exists");
+        }
+
+        $customer = Stripe_Customer::create(array(
+          'card'     => $_POST['stripeToken'],
+          'email'    => $_POST['email']
+          ));
+
+        create_customer($_POST['email'], $_POST['password'], $customer->id);
+
+        $charge = Stripe_Charge::create(array(
+          'customer'    => $customer->id,
+          'amount'      => 53500,
+          'currency'    => 'usd',
+          'description' => 'Single quote purchase'));
+      }
+      else {
+        throw new Exception("The Stripe Token or customer was not generated correctly");
+      }
+    }
+    catch (Exception $e) {
+      $error = $e->getMessage();
+    }
+
+    if ($error == NULL) {
+      $wildeQuotes = array(
+        "A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.",
+        "Always forgive your enemies; nothing annoys them so much.",
+        "America is the only country that went from barbarism to decadence without civilization in between.",
+        "I think that God in creating Man somewhat overestimated his ability.",
+        "I am not young enough to know everything.",
+        "Fashion is a form of ugliness so intolerable that we have to alter it every six months.",
+        "Most modern calendars mar the sweet simplicity of our lives by reminding us that each day that passes is the anniversary of some perfectly uninteresting event.",
+        "Scandal is gossip made tedious by morality."
+        );
+
+      echo "<h1>Here's your quote!</h1>";
+      echo "<h2>".$wildeQuotes[array_rand($wildeQuotes)]."</h2>";
+    }
+    else {
+      echo "<div class=\"error\">".$error."</div>";
+      require_once('./payment_form.php');
+    }
+  }
+  require_once('./footer.php');
+?>
diff --git a/Step4/config.php b/Step4/config.php
@@ -0,0 +1,8 @@
+<?php
+  require_once('../stripe/lib/Stripe.php');
+  $stripe = array(
+    'secret_key'      => 'sk_test_COES306BuVznThOZkMr8ibAa',
+    'publishable_key' => 'pk_test_fRASYtf5gVfnrjeNS6Z0aqLW'
+    );
+  Stripe::setApiKey($stripe['secret_key']);
+?>
diff --git a/Step4/db.php b/Step4/db.php
@@ -0,0 +1,39 @@
+<?php
+// We are using a file instead of a DB for convenience -- in a real application, we'd be using a database and not delimiting our entries with strings like this (which is pretty fragile -- for example, e-mails can actually contain semicolons and commas inside quotation marks, which would break our little scheme here).
+
+function get_customer($email_address)
+{
+	$customers = get_all_customers();
+	foreach($customers as &$customer) {
+		if ($customer['email'] == $email_address)
+			return $customer;
+	}
+	return NULL;
+}
+
+function get_all_customers()
+{
+	$customers = array();
+	$db_contents = file_get_contents("/public/customers.txt");
+    $existing_customers = explode(';', $db_contents);
+    foreach($existing_customers as &$customer) {
+        $customer_info = explode(',', $customer);
+        array_push($customers, array(
+        	  'email' => $customer_info[0],
+        	  'password' => $customer_info[1],
+        	  'stripe_id' => $customer_info[2]
+        	));
+    }
+    return $customers;
+}
+
+function create_customer($email_address, $password, $stripe_id)
+{
+    // Encode password with Blowfish algorithm
+    $db_entry = $email_address.','.crypt($password).','.$stripe_id.';';
+
+    // Make sure /public is writeable by the Apache process and readable (If this is too hard, feel free to just make a /public directory temporarily and run "sudo chmod 777 /public" for the sake of this demo)
+    $db = fopen('/public/customers.txt', 'a');
+    fwrite($db, $db_entry);
+}
+?>
diff --git a/Step4/footer.php b/Step4/footer.php
@@ -0,0 +1,2 @@
+  </body>
+</html>
diff --git a/Step4/header.php b/Step4/header.php
@@ -0,0 +1,8 @@
+<?php require_once('./config.php'); ?>
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>Wilde Things</title>
+  </head>
+  <body>
+    <h2>Wilde Things</h2>
diff --git a/Step4/index.php b/Step4/index.php
@@ -0,0 +1,5 @@
+<?php
+  require_once('./header.php');
+  require_once('./payment_form.php');
+  require_once('./footer.php');
+?>
diff --git a/Step4/login.php b/Step4/login.php
@@ -0,0 +1,23 @@
+<?php
+  require_once('./header.php');
+  require_once('./db.php');
+
+  if ($_POST) {
+  	$existing_customer = get_customer($_POST['email']);
+
+  	if ($existing_customer && crypt($_POST['password'], $existing_customer['password']) == $existing_customer['password']) {
+  		$stripe_customer = Stripe_Customer::retrieve($existing_customer['stripe_id']);
+  		?>
+
+  		<form action="charge.php" method="POST">
+  		Would you like to pay with your card ending in <?php echo $stripe_customer->active_card['last4'] ?>?
+  		<input type="hidden" name="customer_id" value="<?php echo $stripe_customer->id ?>" />
+  		<input type="submit" name="submit" value="Yes!" />
+  		</form>
+  		<?php
+  	}
+  	else {
+  		echo "Your email address or password is incorrect.";
+  		require_once('./login_form.php');
+  	}
+  }
diff --git a/Step4/login_form.php b/Step4/login_form.php
@@ -0,0 +1,6 @@
+<form action="login.php" method="post">
+    <h3>Log in to make a purchase with the card you have on file!</h3>
+  	<input type="text" name="email" placeholder="E-mail address" />
+	<input type="password" name="password" placeholder="Password" />
+	<input type="submit" name="login" value="Login" />
+</form>