2019-02-23 10:54:08 +08:00
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package main
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import (
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"encoding/json"
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"fmt"
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"golang.org/x/oauth2"
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"io/ioutil"
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"net/http"
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2019-07-26 18:28:19 +08:00
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"os"
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2019-02-23 10:54:08 +08:00
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)
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func gitlabCallbackHandler(w http.ResponseWriter, r *http.Request) {
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commenterToken := r.FormValue("state")
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code := r.FormValue("code")
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_, err := commenterGetByCommenterToken(commenterToken)
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if err != nil && err != errorNoSuchToken {
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fmt.Fprintf(w, "Error: %s\n", err.Error())
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return
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}
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token, err := gitlabConfig.Exchange(oauth2.NoContext, code)
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if err != nil {
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fmt.Fprintf(w, "Error: %s", err.Error())
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return
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}
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2019-07-26 18:28:19 +08:00
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resp, err := http.Get(os.Getenv("GITLAB_URL") + "/api/v4/user?access_token=" + token.AccessToken)
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2019-02-23 10:54:08 +08:00
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if err != nil {
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fmt.Fprintf(w, "Error: %s", err.Error())
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return
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}
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logger.Infof("%v", resp.StatusCode)
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defer resp.Body.Close()
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contents, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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fmt.Fprintf(w, "Error: %s", errorCannotReadResponse.Error())
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return
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}
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user := make(map[string]interface{})
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if err := json.Unmarshal(contents, &user); err != nil {
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fmt.Fprintf(w, "Error: %s", errorInternal.Error())
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return
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}
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if user["email"] == nil {
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fmt.Fprintf(w, "Error: no email address returned by Gitlab")
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return
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}
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email := user["email"].(string)
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if user["name"] == nil {
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fmt.Fprintf(w, "Error: no name returned by Gitlab")
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return
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}
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name := user["name"].(string)
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link := "undefined"
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if user["web_url"] != nil {
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link = user["web_url"].(string)
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}
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photo := "undefined"
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if user["avatar_url"] != nil {
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photo = user["avatar_url"].(string)
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}
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c, err := commenterGetByEmail("gitlab", email)
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if err != nil && err != errorNoSuchCommenter {
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fmt.Fprintf(w, "Error: %s", err.Error())
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return
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}
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var commenterHex string
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if err == errorNoSuchCommenter {
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commenterHex, err = commenterNew(email, name, link, photo, "gitlab", "")
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if err != nil {
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fmt.Fprintf(w, "Error: %s", err.Error())
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return
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}
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} else {
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2019-08-12 06:52:56 +08:00
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if err = commenterUpdate(c.CommenterHex, email, name, link, photo, "gitlab"); err != nil {
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logger.Warningf("cannot update commenter: %s", err)
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// not a serious enough to exit with an error
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}
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2019-02-23 10:54:08 +08:00
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commenterHex = c.CommenterHex
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}
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if err := commenterSessionUpdate(commenterToken, commenterHex); err != nil {
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fmt.Fprintf(w, "Error: %s", err.Error())
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return
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}
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fmt.Fprintf(w, "<html><script>window.parent.close()</script></html>")
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}
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