lib/nitcorn: HttpRequest added methods to get an argument of a certain type

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>

diff --git a/lib/nitcorn/http_request.nit b/lib/nitcorn/http_request.nit
index 07b91ad..c52a4a5 100644 (file)
--- a/lib/nitcorn/http_request.nit
+++ b/lib/nitcorn/http_request.nit
@@ -57,6 +57,41 @@ class HttpRequest
 
        # The arguments passed with the POST or GET method (with a priority on POST)
        var all_args = new HashMap[String, String]
+
+       # Returns argument `arg_name` in the request as a String
+       # or null if it was not found.
+       # Also cleans the String by trimming it.
+       # If the Strings happens to be empty after trimming,
+       # the method will return `null`
+       #
+       # NOTE: Prioritizes POST before GET
+       fun string_arg(arg_name: String): nullable String do
+               if not all_args.has_key(arg_name) then return null
+               var s = all_args[arg_name].trim
+               if s.is_empty then return null
+               return s
+       end
+
+       # Returns argument `arg_name` as an Int or `null` if not found or not a number.
+       #
+       # NOTE: Prioritizes POST before GET
+       fun int_arg(arg_name: String): nullable Int do
+               if not all_args.has_key(arg_name) then return null
+               var i = all_args[arg_name]
+               if not i.is_numeric then return null
+               return i.to_i
+       end
+
+       # Returns argument `arg_name` as a Bool or `null` if not found or not a boolean.
+       #
+       # NOTE: Prioritizes POST before GET
+       fun bool_arg(arg_name: String): nullable Bool do
+               if not all_args.has_key(arg_name) then return null
+               var i = all_args[arg_name]
+               if i == "true" then return true
+               if i == "false" then return false
+               return null
+       end
 end
 
 # Utility class to parse a request string and build a `HttpRequest`