add submit

src/mechanize.cr

@@ -60,6 +60,13 @@ class Mechanize
     @agent.request_headers = request_headers
   end
 
+  def submit(form)
+    case form.method.upcase
+    when "POST"
+      post_form(form.action, form, request_headers)
+    end
+  end
+
   def parse(uri, response, body)
     code = response.not_nil!.status_code
     MechanizeCr::Page.new(uri, response, body, code)

src/mechanize/file.cr

@@ -1,8 +1,8 @@
 require "http/client"
 class MechanizeCr::File
   #property :body, :filename
-  property :body, :code
-  def initialize(uri : URI | Nil, response : ::HTTP::Client::Response | Nil, body : String , code : Int32 | Nil)
+  property :body, :code, uri
+  def initialize(uri : URI, response : ::HTTP::Client::Response | Nil, body : String , code : Int32 | Nil)
     @uri  = uri
     @body = body
     @code = code

src/mechanize/form.cr

@@ -5,6 +5,7 @@ class MechanizeCr::Form
   getter fields : Array(MechanizeCr::FormContent::Field)
   getter checkboxes : Array(MechanizeCr::FormContent::CheckBox)
   getter enctype : String
+  getter method : String
   property action : String
 
   def initialize(node : Node | Myhtml::Node)
@@ -14,7 +15,7 @@ class MechanizeCr::Form
     @checkboxes = Array(MechanizeCr::FormContent::CheckBox).new
     #@action           = Mechanize::Util.html_unescape(node['action'])
     @action = node["action"]
-    #@method           = (node['method'] || 'GET').upcase
+    @method           = (node["method"] || "GET").upcase
     #@name             = node['name']
     #@clicked_buttons  = []
     #@page             = page

src/mechanize/http/agent.cr

@@ -13,7 +13,7 @@ module MechanizeCr
       end
 
       def fetch(uri, method = :get, headers = HTTP::Headers.new, params = Hash(String,String).new)
-        uri = URI.parse(uri)
+        uri = resolve(uri)
         set_request_headers(headers)
         uri, params = resolve_parameters(uri, method, params)
         response = http_request(uri, method, params)
@@ -72,6 +72,21 @@ module MechanizeCr
           header_cookies.not_nil!.add_request_headers(request_headers)
         end
       end
+
+      private def resolve(uri) : URI
+        if uri.class == URI || uri.to_s.includes?("http")
+          URI.parse(uri)
+        else
+          referer_uri = current_page.uri
+          host = referer_uri.host
+          scheme = referer_uri.scheme
+          new_uri = URI.new(scheme: scheme, host: host, path: uri)
+        end
+      end
+
+      private def current_page
+        @history.last
+      end
     end
   end
 end