add security section

src/hack/security/is_link.hpp

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <uuid/uuid.h>
+#include <regex>
+#include <string>
+
+namespace hack::security
+{
+  inline bool is_link(const std::string& s)
+  {
+    static const std::regex e("^(https?:\\/\\/)?([\\da-z\\.-]+)\\.([a-z\\.]{2,6})([\\/\\w \\.-]*)*\\/?$", std::regex_constants::icase);
+    return std::regex_match (s, e);
+  }
+}

src/hack/security/is_string.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <string>
+#include <type_traits>
+
+namespace hack::security
+{
+  template<typename T>
+  struct is_string : public std::disjunction<std::is_same<char*, 
+                                             typename std::decay_t<T>>, 
+                                             std::is_same<const char*, 
+                                             typename std::decay_t<T>>, 
+                                             std::is_same<std::string, 
+                                             typename std::decay_t<T>>> {};
+}

src/hack/security/uuid.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <uuid/uuid.h>
+#include <regex>
+#include <string>
+
+namespace hack::security
+{
+  inline std::string generate_uuid()
+  {
+    std::string uuid;
+    uuid_t uuid_obj;
+    uuid_generate_time_safe(uuid_obj);
+    char uuid_ch[UUID_STR_LEN]; 
+    uuid_unparse_lower(uuid_obj, uuid_ch);
+    std::stringstream ss;
+    ss << uuid_ch;
+    ss >> uuid;
+    return uuid;
+  }
+
+  inline bool validate_uuid(const std::string& s)
+  {
+    static const std::regex e("^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$", std::regex_constants::icase);
+    return std::regex_match(s, e);
+  }
+}

src/hack/security/validate_email.hpp

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <regex>
+#include <string>
+
+namespace hack::security
+{
+  inline bool validate_email(std::string& email)
+  {
+    const std::regex pattern("(\\w+)(\\.|_)?(\\w*)@(\\w+)(\\.(\\w+))+");
+    return std::regex_match(email, pattern);
+  }
+}