2014-04-12 05:18:18 +00:00
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// Beego (http://beego.me/)
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// @description beego is an open-source, high-performance web framework for the Go programming language.
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// @link http://github.com/astaxie/beego for the canonical source repository
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// @license http://github.com/astaxie/beego/blob/master/LICENSE
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// @authors astaxie
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2013-08-21 09:59:31 +00:00
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package context
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2013-08-21 05:24:14 +00:00
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import (
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"bytes"
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"errors"
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2013-08-21 05:24:14 +00:00
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"io/ioutil"
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"net/http"
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context:add Bind function
// Bind data from request.Form[key] to dest
// like
/?id=123&isok=true&ft=1.2&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&user.Name=
astaxie
// var id int beegoInput.Bind(&id, "id") id ==123
// var isok bool beegoInput.Bind(&isok, "isok") id ==true
// var ft float64 beegoInput.Bind(&ft, "ft") ft ==1.2
// ol := make([]int, 0, 2) beegoInput.Bind(&ol, "ol") ol ==[1 2]
// ul := make([]string, 0, 2) beegoInput.Bind(&ul, "ul") ul ==[str
array]
// user struct{Name} beegoInput.Bind(&user, "user") user ==
{Name:"astaxie"}
2014-04-09 16:31:16 +00:00
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"net/url"
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2014-03-29 06:55:34 +00:00
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"reflect"
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2013-08-21 05:24:14 +00:00
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"strconv"
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"strings"
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2013-12-03 13:37:39 +00:00
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"github.com/astaxie/beego/session"
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2013-08-21 05:24:14 +00:00
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)
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2013-12-25 12:13:38 +00:00
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// BeegoInput operates the http request header ,data ,cookie and body.
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// it also contains router params and current session.
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type BeegoInput struct {
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CruSession session.SessionStore
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Params map[string]string
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Data map[interface{}]interface{} // store some values in this context when calling context in filter or controller.
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Request *http.Request
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RequestBody []byte
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RunController reflect.Type
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RunMethod string
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}
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// NewInput return BeegoInput generated by http.Request.
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func NewInput(req *http.Request) *BeegoInput {
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return &BeegoInput{
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Params: make(map[string]string),
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Data: make(map[interface{}]interface{}),
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Request: req,
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}
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}
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// Protocol returns request protocol name, such as HTTP/1.1 .
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func (input *BeegoInput) Protocol() string {
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return input.Request.Proto
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}
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// Uri returns full request url with query string, fragment.
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func (input *BeegoInput) Uri() string {
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return input.Request.RequestURI
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}
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// Url returns request url path (without query string, fragment).
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func (input *BeegoInput) Url() string {
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return input.Request.URL.String()
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}
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// Site returns base site url as scheme://domain type.
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func (input *BeegoInput) Site() string {
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return input.Scheme() + "://" + input.Domain()
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}
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// Scheme returns request scheme as "http" or "https".
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func (input *BeegoInput) Scheme() string {
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if input.Request.URL.Scheme != "" {
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return input.Request.URL.Scheme
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} else if input.Request.TLS == nil {
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return "http"
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} else {
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return "https"
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}
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}
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// Domain returns host name.
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// Alias of Host method.
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func (input *BeegoInput) Domain() string {
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return input.Host()
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}
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// Host returns host name.
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// if no host info in request, return localhost.
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func (input *BeegoInput) Host() string {
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if input.Request.Host != "" {
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hostParts := strings.Split(input.Request.Host, ":")
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if len(hostParts) > 0 {
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return hostParts[0]
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}
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return input.Request.Host
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}
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return "localhost"
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}
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// Method returns http request method.
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func (input *BeegoInput) Method() string {
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return input.Request.Method
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}
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// Is returns boolean of this request is on given method, such as Is("POST").
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func (input *BeegoInput) Is(method string) bool {
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return input.Method() == method
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}
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2014-04-05 16:08:03 +00:00
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// Is this a GET method request?
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func (input *BeegoInput) IsGet() bool {
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return input.Is("GET")
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}
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// Is this a POST method request?
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func (input *BeegoInput) IsPost() bool {
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return input.Is("POST")
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}
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// Is this a Head method request?
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func (input *BeegoInput) IsHead() bool {
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return input.Is("HEAD")
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}
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// Is this a OPTIONS method request?
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func (input *BeegoInput) IsOptions() bool {
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return input.Is("OPTIONS")
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}
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// Is this a PUT method request?
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func (input *BeegoInput) IsPut() bool {
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return input.Is("PUT")
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}
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// Is this a DELETE method request?
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func (input *BeegoInput) IsDelete() bool {
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return input.Is("DELETE")
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}
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// Is this a PATCH method request?
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func (input *BeegoInput) IsPatch() bool {
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return input.Is("PATCH")
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}
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// IsAjax returns boolean of this request is generated by ajax.
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func (input *BeegoInput) IsAjax() bool {
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return input.Header("X-Requested-With") == "XMLHttpRequest"
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}
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// IsSecure returns boolean of this request is in https.
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func (input *BeegoInput) IsSecure() bool {
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return input.Scheme() == "https"
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}
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// IsSecure returns boolean of this request is in webSocket.
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func (input *BeegoInput) IsWebsocket() bool {
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return input.Header("Upgrade") == "websocket"
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}
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// IsSecure returns boolean of whether file uploads in this request or not..
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func (input *BeegoInput) IsUpload() bool {
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return strings.Contains(input.Header("Content-Type"), "multipart/form-data")
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}
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// IP returns request client ip.
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// if in proxy, return first proxy id.
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// if error, return 127.0.0.1.
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func (input *BeegoInput) IP() string {
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ips := input.Proxy()
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if len(ips) > 0 && ips[0] != "" {
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return ips[0]
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}
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ip := strings.Split(input.Request.RemoteAddr, ":")
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if len(ip) > 0 {
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if ip[0] != "[" {
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return ip[0]
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}
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}
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return "127.0.0.1"
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}
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// Proxy returns proxy client ips slice.
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func (input *BeegoInput) Proxy() []string {
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if ips := input.Header("X-Forwarded-For"); ips != "" {
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return strings.Split(ips, ",")
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}
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return []string{}
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}
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// Refer returns http referer header.
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func (input *BeegoInput) Refer() string {
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return input.Header("Referer")
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}
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// SubDomains returns sub domain string.
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// if aa.bb.domain.com, returns aa.bb .
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func (input *BeegoInput) SubDomains() string {
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parts := strings.Split(input.Host(), ".")
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return strings.Join(parts[len(parts)-2:], ".")
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}
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// Port returns request client port.
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// when error or empty, return 80.
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func (input *BeegoInput) Port() int {
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parts := strings.Split(input.Request.Host, ":")
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if len(parts) == 2 {
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port, _ := strconv.Atoi(parts[1])
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return port
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}
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return 80
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}
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// UserAgent returns request client user agent string.
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func (input *BeegoInput) UserAgent() string {
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return input.Header("User-Agent")
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}
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// Param returns router param by a given key.
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func (input *BeegoInput) Param(key string) string {
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if v, ok := input.Params[key]; ok {
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return v
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}
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return ""
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}
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// Query returns input data item string by a given string.
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func (input *BeegoInput) Query(key string) string {
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if val := input.Param(key); val != "" {
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return val
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}
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if input.Request.Form == nil {
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input.Request.ParseForm()
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}
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return input.Request.Form.Get(key)
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}
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// Header returns request header item string by a given string.
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func (input *BeegoInput) Header(key string) string {
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return input.Request.Header.Get(key)
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}
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// Cookie returns request cookie item string by a given key.
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// if non-existed, return empty string.
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func (input *BeegoInput) Cookie(key string) string {
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ck, err := input.Request.Cookie(key)
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if err != nil {
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return ""
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}
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return ck.Value
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}
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// Session returns current session item value by a given key.
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func (input *BeegoInput) Session(key interface{}) interface{} {
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return input.CruSession.Get(key)
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}
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// Body returns the raw request body data as bytes.
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func (input *BeegoInput) CopyBody() []byte {
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requestbody, _ := ioutil.ReadAll(input.Request.Body)
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input.Request.Body.Close()
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bf := bytes.NewBuffer(requestbody)
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input.Request.Body = ioutil.NopCloser(bf)
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input.RequestBody = requestbody
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return requestbody
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}
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// GetData returns the stored data in this context.
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func (input *BeegoInput) GetData(key interface{}) interface{} {
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if v, ok := input.Data[key]; ok {
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return v
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}
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return nil
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}
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// SetData stores data with given key in this context.
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// This data are only available in this context.
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func (input *BeegoInput) SetData(key, val interface{}) {
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input.Data[key] = val
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}
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// parseForm or parseMultiForm based on Content-type
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func (input *BeegoInput) ParseFormOrMulitForm(maxMemory int64) error {
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// Parse the body depending on the content type.
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if strings.Contains(input.Header("Content-Type"), "multipart/form-data") {
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if err := input.Request.ParseMultipartForm(maxMemory); err != nil {
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return errors.New("Error parsing request body:" + err.Error())
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}
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} else if err := input.Request.ParseForm(); err != nil {
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return errors.New("Error parsing request body:" + err.Error())
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}
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return nil
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}
|
context:add Bind function
// Bind data from request.Form[key] to dest
// like
/?id=123&isok=true&ft=1.2&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&user.Name=
astaxie
// var id int beegoInput.Bind(&id, "id") id ==123
// var isok bool beegoInput.Bind(&isok, "isok") id ==true
// var ft float64 beegoInput.Bind(&ft, "ft") ft ==1.2
// ol := make([]int, 0, 2) beegoInput.Bind(&ol, "ol") ol ==[1 2]
// ul := make([]string, 0, 2) beegoInput.Bind(&ul, "ul") ul ==[str
array]
// user struct{Name} beegoInput.Bind(&user, "user") user ==
{Name:"astaxie"}
2014-04-09 16:31:16 +00:00
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// Bind data from request.Form[key] to dest
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|
|
// like /?id=123&isok=true&ft=1.2&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&user.Name=astaxie
|
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|
|
// var id int beegoInput.Bind(&id, "id") id ==123
|
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|
|
// var isok bool beegoInput.Bind(&isok, "isok") id ==true
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|
|
// var ft float64 beegoInput.Bind(&ft, "ft") ft ==1.2
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|
|
// ol := make([]int, 0, 2) beegoInput.Bind(&ol, "ol") ol ==[1 2]
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|
|
// ul := make([]string, 0, 2) beegoInput.Bind(&ul, "ul") ul ==[str array]
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|
|
// user struct{Name} beegoInput.Bind(&user, "user") user == {Name:"astaxie"}
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|
|
func (input *BeegoInput) Bind(dest interface{}, key string) error {
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|
|
value := reflect.ValueOf(dest)
|
|
|
|
if value.Kind() != reflect.Ptr {
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|
|
|
return errors.New("beego: non-pointer passed to Bind: " + key)
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|
|
}
|
|
|
|
value = value.Elem()
|
|
|
|
if !value.CanSet() {
|
|
|
|
return errors.New("beego: non-settable variable passed to Bind: " + key)
|
|
|
|
}
|
|
|
|
rv := input.bind(key, value.Type())
|
|
|
|
if !rv.IsValid() {
|
|
|
|
return errors.New("beego: reflect value is empty")
|
|
|
|
}
|
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|
|
value.Set(rv)
|
|
|
|
return nil
|
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|
}
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|
func (input *BeegoInput) bind(key string, typ reflect.Type) reflect.Value {
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|
|
|
rv := reflect.Zero(reflect.TypeOf(0))
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|
|
switch typ.Kind() {
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|
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
|
|
|
val := input.Query(key)
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|
|
if len(val) == 0 {
|
|
|
|
return rv
|
|
|
|
}
|
|
|
|
rv = input.bindInt(val, typ)
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|
|
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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|
|
val := input.Query(key)
|
|
|
|
if len(val) == 0 {
|
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|
|
return rv
|
|
|
|
}
|
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|
|
rv = input.bindUint(val, typ)
|
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|
|
case reflect.Float32, reflect.Float64:
|
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|
|
val := input.Query(key)
|
|
|
|
if len(val) == 0 {
|
|
|
|
return rv
|
|
|
|
}
|
|
|
|
rv = input.bindFloat(val, typ)
|
|
|
|
case reflect.String:
|
|
|
|
val := input.Query(key)
|
|
|
|
if len(val) == 0 {
|
|
|
|
return rv
|
|
|
|
}
|
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|
|
rv = input.bindString(val, typ)
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|
|
case reflect.Bool:
|
|
|
|
val := input.Query(key)
|
|
|
|
if len(val) == 0 {
|
|
|
|
return rv
|
|
|
|
}
|
|
|
|
rv = input.bindBool(val, typ)
|
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|
|
case reflect.Slice:
|
|
|
|
rv = input.bindSlice(&input.Request.Form, key, typ)
|
|
|
|
case reflect.Struct:
|
|
|
|
rv = input.bindStruct(&input.Request.Form, key, typ)
|
|
|
|
case reflect.Ptr:
|
|
|
|
rv = input.bindPoint(key, typ)
|
|
|
|
case reflect.Map:
|
|
|
|
rv = input.bindMap(&input.Request.Form, key, typ)
|
|
|
|
}
|
|
|
|
return rv
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindValue(val string, typ reflect.Type) reflect.Value {
|
|
|
|
rv := reflect.Zero(reflect.TypeOf(0))
|
|
|
|
switch typ.Kind() {
|
|
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
|
|
|
rv = input.bindInt(val, typ)
|
|
|
|
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
|
|
|
rv = input.bindUint(val, typ)
|
|
|
|
case reflect.Float32, reflect.Float64:
|
|
|
|
rv = input.bindFloat(val, typ)
|
|
|
|
case reflect.String:
|
|
|
|
rv = input.bindString(val, typ)
|
|
|
|
case reflect.Bool:
|
|
|
|
rv = input.bindBool(val, typ)
|
|
|
|
case reflect.Slice:
|
|
|
|
rv = input.bindSlice(&url.Values{"": {val}}, "", typ)
|
|
|
|
case reflect.Struct:
|
|
|
|
rv = input.bindStruct(&url.Values{"": {val}}, "", typ)
|
|
|
|
case reflect.Ptr:
|
|
|
|
rv = input.bindPoint(val, typ)
|
|
|
|
case reflect.Map:
|
|
|
|
rv = input.bindMap(&url.Values{"": {val}}, "", typ)
|
|
|
|
}
|
|
|
|
return rv
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindInt(val string, typ reflect.Type) reflect.Value {
|
|
|
|
intValue, err := strconv.ParseInt(val, 10, 64)
|
|
|
|
if err != nil {
|
|
|
|
return reflect.Zero(typ)
|
|
|
|
}
|
|
|
|
pValue := reflect.New(typ)
|
|
|
|
pValue.Elem().SetInt(intValue)
|
|
|
|
return pValue.Elem()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindUint(val string, typ reflect.Type) reflect.Value {
|
|
|
|
uintValue, err := strconv.ParseUint(val, 10, 64)
|
|
|
|
if err != nil {
|
|
|
|
return reflect.Zero(typ)
|
|
|
|
}
|
|
|
|
pValue := reflect.New(typ)
|
|
|
|
pValue.Elem().SetUint(uintValue)
|
|
|
|
return pValue.Elem()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindFloat(val string, typ reflect.Type) reflect.Value {
|
|
|
|
floatValue, err := strconv.ParseFloat(val, 64)
|
|
|
|
if err != nil {
|
|
|
|
return reflect.Zero(typ)
|
|
|
|
}
|
|
|
|
pValue := reflect.New(typ)
|
|
|
|
pValue.Elem().SetFloat(floatValue)
|
|
|
|
return pValue.Elem()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindString(val string, typ reflect.Type) reflect.Value {
|
|
|
|
return reflect.ValueOf(val)
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindBool(val string, typ reflect.Type) reflect.Value {
|
|
|
|
val = strings.TrimSpace(strings.ToLower(val))
|
|
|
|
switch val {
|
|
|
|
case "true", "on", "1":
|
|
|
|
return reflect.ValueOf(true)
|
|
|
|
}
|
|
|
|
return reflect.ValueOf(false)
|
|
|
|
}
|
|
|
|
|
|
|
|
type sliceValue struct {
|
|
|
|
index int // Index extracted from brackets. If -1, no index was provided.
|
|
|
|
value reflect.Value // the bound value for this slice element.
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindSlice(params *url.Values, key string, typ reflect.Type) reflect.Value {
|
|
|
|
maxIndex := -1
|
|
|
|
numNoIndex := 0
|
|
|
|
sliceValues := []sliceValue{}
|
|
|
|
for reqKey, vals := range *params {
|
|
|
|
if !strings.HasPrefix(reqKey, key+"[") {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Extract the index, and the index where a sub-key starts. (e.g. field[0].subkey)
|
|
|
|
index := -1
|
|
|
|
leftBracket, rightBracket := len(key), strings.Index(reqKey[len(key):], "]")+len(key)
|
|
|
|
if rightBracket > leftBracket+1 {
|
|
|
|
index, _ = strconv.Atoi(reqKey[leftBracket+1 : rightBracket])
|
|
|
|
}
|
|
|
|
subKeyIndex := rightBracket + 1
|
|
|
|
|
|
|
|
// Handle the indexed case.
|
|
|
|
if index > -1 {
|
|
|
|
if index > maxIndex {
|
|
|
|
maxIndex = index
|
|
|
|
}
|
|
|
|
sliceValues = append(sliceValues, sliceValue{
|
|
|
|
index: index,
|
|
|
|
value: input.bind(reqKey[:subKeyIndex], typ.Elem()),
|
|
|
|
})
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
|
|
|
|
// It's an un-indexed element. (e.g. element[])
|
|
|
|
numNoIndex += len(vals)
|
|
|
|
for _, val := range vals {
|
|
|
|
// Unindexed values can only be direct-bound.
|
|
|
|
sliceValues = append(sliceValues, sliceValue{
|
|
|
|
index: -1,
|
|
|
|
value: input.bindValue(val, typ.Elem()),
|
|
|
|
})
|
|
|
|
}
|
|
|
|
}
|
|
|
|
resultArray := reflect.MakeSlice(typ, maxIndex+1, maxIndex+1+numNoIndex)
|
|
|
|
for _, sv := range sliceValues {
|
|
|
|
if sv.index != -1 {
|
|
|
|
resultArray.Index(sv.index).Set(sv.value)
|
|
|
|
} else {
|
|
|
|
resultArray = reflect.Append(resultArray, sv.value)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return resultArray
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindStruct(params *url.Values, key string, typ reflect.Type) reflect.Value {
|
|
|
|
result := reflect.New(typ).Elem()
|
|
|
|
fieldValues := make(map[string]reflect.Value)
|
|
|
|
for reqKey, val := range *params {
|
|
|
|
if !strings.HasPrefix(reqKey, key+".") {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
|
|
|
|
fieldName := reqKey[len(key)+1:]
|
|
|
|
|
|
|
|
if _, ok := fieldValues[fieldName]; !ok {
|
|
|
|
// Time to bind this field. Get it and make sure we can set it.
|
|
|
|
fieldValue := result.FieldByName(fieldName)
|
|
|
|
if !fieldValue.IsValid() {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
if !fieldValue.CanSet() {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
boundVal := input.bindValue(val[0], fieldValue.Type())
|
|
|
|
fieldValue.Set(boundVal)
|
|
|
|
fieldValues[fieldName] = boundVal
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindPoint(key string, typ reflect.Type) reflect.Value {
|
|
|
|
return input.bind(key, typ.Elem()).Addr()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (input *BeegoInput) bindMap(params *url.Values, key string, typ reflect.Type) reflect.Value {
|
|
|
|
var (
|
|
|
|
result = reflect.MakeMap(typ)
|
|
|
|
keyType = typ.Key()
|
|
|
|
valueType = typ.Elem()
|
|
|
|
)
|
|
|
|
for paramName, values := range *params {
|
|
|
|
if !strings.HasPrefix(paramName, key+"[") || paramName[len(paramName)-1] != ']' {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
|
|
|
|
key := paramName[len(key)+1 : len(paramName)-1]
|
|
|
|
result.SetMapIndex(input.bindValue(key, keyType), input.bindValue(values[0], valueType))
|
|
|
|
}
|
|
|
|
return result
|
|
|
|
}
|