switch to std http implementation instead of fasthttp (#106)

close #100
close #109
close #113
close #28
close #63

Reviewed-on: https://codeberg.org/Codeberg/pages-server/pulls/106

server/context/context.go

@@ -0,0 +1,62 @@
+package context
+
+import (
+	stdContext "context"
+	"net/http"
+)
+
+type Context struct {
+	RespWriter http.ResponseWriter
+	Req        *http.Request
+	StatusCode int
+}
+
+func New(w http.ResponseWriter, r *http.Request) *Context {
+	return &Context{
+		RespWriter: w,
+		Req:        r,
+		StatusCode: http.StatusOK,
+	}
+}
+
+func (c *Context) Context() stdContext.Context {
+	if c.Req != nil {
+		return c.Req.Context()
+	}
+	return stdContext.Background()
+}
+
+func (c *Context) Response() *http.Response {
+	if c.Req != nil && c.Req.Response != nil {
+		return c.Req.Response
+	}
+	return nil
+}
+
+func (c *Context) String(raw string, status ...int) {
+	code := http.StatusOK
+	if len(status) != 0 {
+		code = status[0]
+	}
+	c.RespWriter.WriteHeader(code)
+	_, _ = c.RespWriter.Write([]byte(raw))
+}
+
+func (c *Context) IsMethod(m string) bool {
+	return c.Req.Method == m
+}
+
+func (c *Context) Redirect(uri string, statusCode int) {
+	http.Redirect(c.RespWriter, c.Req, uri, statusCode)
+}
+
+// Path returns requested path.
+//
+// The returned bytes are valid until your request handler returns.
+func (c *Context) Path() string {
+	return c.Req.URL.Path
+}
+
+func (c *Context) Host() string {
+	return c.Req.URL.Host
+}