1 files changed, 70 insertions, 0 deletions
diff --git a/tools/aws_config_offline/js/generator.js b/tools/aws_config_offline/js/generator.js
new file mode 100644
index 000000000..157a0f7a1
--- /dev/null
+++ b/tools/aws_config_offline/js/generator.js
@@ -0,0 +1,70 @@
+
+// Check for the various File API support.
+if (window.File && window.FileReader && window.FileList && window.Blob) {
+  // Success! All the File APIs are supported.
+} else {
+  alert('Please use a web browser that supports HTML5 file APIs.')
+}
+
+function formatCredentialTextForHeader(credentialText) {
+  // Replace any CR/LF pairs with a newline character.
+  credentialText = credentialText.replace(/\r\n/g, '\n')
+
+  // Add line endings for C-language variable declaration.
+  credentialText = credentialText.replace(/\n/g, '\\n" \\\n    "')
+
+  // Remove '\n"' from the last line of the declaration and add a semicolon.
+  credentialText = credentialText.slice(0, -9) + '"\n'
+  return credentialText
+}
+
+function generateCertificateConfigurationHeader() {
+  var pemCertificateText = ''
+  var pemPrivateKeyText = ''
+  var filename = 'demo_config.h'
+  var outputText = ''
+
+  var readerCertificate = new FileReader()
+  var readerPrivateKey = new FileReader()
+
+  // Start certificate read
+  readerCertificate.readAsText(pemInputFileCertificate.files[0])
+
+  // Define a handler to create appropriate client certificate file text.
+  readerCertificate.onload = function (e) {
+    pemCertificateText = e.target.result
+
+    // Add C-language variable declaration plus EOL formatting.
+    pemCertificateText = '    "' + formatCredentialTextForHeader(pemCertificateText)
+
+    // Because this is async, read next file inline.
+    readerPrivateKey.readAsText(pemInputFilePrivateKey.files[0])
+  }
+
+  // Define a handler to create appropriate private key file text.
+  readerPrivateKey.onload = function (e) {
+    pemPrivateKeyText = e.target.result
+
+    // Add C-language variable declaration plus EOL formatting.
+    pemPrivateKeyText = '    "' + formatCredentialTextForHeader(pemPrivateKeyText)
+
+    outputText = awsIotProfileTemplate
+    outputText = outputText.replace('<IOTEndpoint>', '"' + document.getElementById('AWSEndpoint').value + '"')
+    outputText = outputText.replace('<IOTThingName>', '"' + document.getElementById('thingName').value + '"')
+    outputText = outputText.replace('<ClientCertificatePEM>', pemCertificateText)
+    outputText = outputText.replace('<ClientPrivateKeyPEM>', pemPrivateKeyText)
+
+    // Because this is async, handle download generation inline.
+    var downloadBlob = new Blob([outputText], { type: 'text/plain' })
+    if (window.navigator.msSaveOrOpenBlob) {
+      window.navigator.msSaveBlob(downloadBlob, filename)
+    } else {
+      var downloadLink = document.createElement('a')
+      downloadLink.href = window.URL.createObjectURL(downloadBlob)
+      downloadLink.download = filename
+      document.body.appendChild(downloadLink)
+      downloadLink.click()
+      document.body.removeChild(downloadLink)
+    }
+  }
+}