forked from wgroeneveld/go-jamming
101 lines
2.6 KiB
Go
101 lines
2.6 KiB
Go
package pingback
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import (
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"brainbaking.com/go-jamming/app/mf"
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"brainbaking.com/go-jamming/app/webmention/recv"
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"brainbaking.com/go-jamming/common"
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"brainbaking.com/go-jamming/db"
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"brainbaking.com/go-jamming/rest"
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"encoding/xml"
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"fmt"
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"io/ioutil"
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"net/http"
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)
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func HandlePost(conf *common.Config, db db.MentionRepo) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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pingbackError(w, fmt.Errorf("pingback POST: Unable to read body: %v", err))
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return
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}
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rpc := &XmlRPCMethodCall{}
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err = xml.Unmarshal(body, rpc)
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if err != nil {
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pingbackError(w, fmt.Errorf("pingback POST: Unable to unmarshal XMLRPC %s: %v", body, err))
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return
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}
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if !validate(rpc, conf) {
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pingbackError(w, fmt.Errorf("pingback POST: malformed pingback request: %s", body))
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return
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}
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wm := mf.Mention{
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Source: rpc.Source(),
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Target: rpc.Target(),
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}
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receiver := &recv.Receiver{
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RestClient: &rest.HttpClient{},
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Conf: conf,
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Repo: db,
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}
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go receiver.Receive(wm)
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pingbackSuccess(w)
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}
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}
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func pingbackSuccess(w http.ResponseWriter) {
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xml := `<?xml version="1.0" encoding="UTF-8"?>
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<methodResponse>
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<params>
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<param>
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<value>
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<string>
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Thanks, bro. Will process this soon, pinky swear!
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</string>
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</value>
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</param>
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</params>
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</methodResponse>`
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w.WriteHeader(200)
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w.Write([]byte(xml))
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}
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// according to the XML-RPC spec, always return a 200, but encode it into the XML.
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func pingbackError(w http.ResponseWriter, err error) {
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xml := `<?xml version="1.0" encoding="UTF-8"?>
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<methodResponse>
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<fault>
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<value>
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<struct>
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<member>
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<name>
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faultCode
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</name>
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<value>
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<int>
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0
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</int>
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</value>
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</member>
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<member>
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<name>
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faultString
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</name>
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<value>
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<string>
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Sorry pal. Malformed request? Or something else, who knows...
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</string>
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</value>
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</member>
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</struct>
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</value>
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</fault>
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</methodResponse>`
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// No longer interested in pingback errors, these are 99.9% badly formatted spam that clog up syslog
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// log.Error().Err(err).Msg("Pingback receive went wrong")
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w.WriteHeader(200)
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w.Write([]byte(xml))
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}
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