1 files changed, 73 insertions, 0 deletions
diff --git a/util.cpp b/util.cpp
new file mode 100644
index 0000000..bdd1a51
--- /dev/null
+++ b/util.cpp
@@ -0,0 +1,73 @@
+#include "util.h"
+
+// creates a page that redirects the user to 'target' after 'timeout'
+String makeRedirectPage(String target, int timeout) {
+  String s = "<!DOCTYPE html><html><head>";
+  s += "<meta name=\"viewport\" content=\"width=device-width,user-scalable=0\">";
+  s += "<meta charset=\"utf-8\">";
+  s += "<meta http-equiv=\"refresh\" content=\"" + String(timeout) + ";url=" + target + "\">";
+  s += "<title>Weiterleitung…</title></head><body>";
+  s += "<p>Leite nach <a href=\"" + target + "\">" + target + "</a> weiter…</p>";
+  s += "</body></html>";
+  return s;
+}
+
+// returns html skeleton filled with 'title' and 'contents'
+String makePage(String title, String contents) {
+  String s = "<!DOCTYPE html><html><head>";
+  s += "<meta name=\"viewport\" content=\"width=device-width,user-scalable=0\">";
+  s += "<meta charset=\"utf-8\">";
+  s += "<title>";
+  s += title;
+  s += "</title></head><body>";
+  s += contents;
+  s += "</body></html>";
+  return s;
+}
+
+String urlDecode(String input) {
+  String s = input;
+  s.replace("%20", " ");
+  s.replace("+", " ");
+  s.replace("%21", "!");
+  s.replace("%22", "\"");
+  s.replace("%23", "#");
+  s.replace("%24", "$");
+  s.replace("%25", "%");
+  s.replace("%26", "&");
+  s.replace("%27", "\'");
+  s.replace("%28", "(");
+  s.replace("%29", ")");
+  s.replace("%30", "*");
+  s.replace("%31", "+");
+  s.replace("%2C", ",");
+  s.replace("%2E", ".");
+  s.replace("%2F", "/");
+  s.replace("%2C", ",");
+  s.replace("%3A", ":");
+  s.replace("%3A", ";");
+  s.replace("%3C", "<");
+  s.replace("%3D", "=");
+  s.replace("%3E", ">");
+  s.replace("%3F", "?");
+  s.replace("%40", "@");
+  s.replace("%5B", "[");
+  s.replace("%5C", "\\");
+  s.replace("%5D", "]");
+  s.replace("%5E", "^");
+  s.replace("%5F", "-");
+  s.replace("%60", "`");
+  return s;
+}
+
+// converts IPv4 array to String
+String ipToStr(IPAddress address) {
+  String res = "";
+  for (int i = 0; i < 3; i++) {
+    res += address[i];
+    res += ".";
+  }
+  res += String(address[3]);
+  return res;
+}
+