mirror of
https://github.com/ncarlier/webhookd.git
synced 2025-04-07 17:07:09 +00:00
94 lines
2.2 KiB
Go
94 lines
2.2 KiB
Go
package api
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import (
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"strconv"
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"strings"
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"github.com/ncarlier/webhookd/pkg/hook"
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"github.com/ncarlier/webhookd/pkg/logger"
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"github.com/ncarlier/webhookd/pkg/tools"
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"github.com/ncarlier/webhookd/pkg/worker"
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)
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var (
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defaultTimeout = atoiFallback(os.Getenv("APP_HOOK_TIMEOUT"), 10)
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)
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func atoiFallback(str string, fallback int) int {
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value, err := strconv.Atoi(str)
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if err != nil || value < 0 {
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return fallback
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}
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return value
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}
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// Index is the main handler of the API.
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func Index() http.Handler {
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return http.HandlerFunc(webhookHandler)
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}
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func webhookHandler(w http.ResponseWriter, r *http.Request) {
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flusher, ok := w.(http.Flusher)
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if !ok {
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http.Error(w, "Streaming unsupported!", http.StatusInternalServerError)
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return
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}
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if r.Method != "POST" {
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http.Error(w, "405 Method Not Allowed", http.StatusMethodNotAllowed)
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return
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}
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// Get script location
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p := strings.TrimPrefix(r.URL.Path, "/")
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script, err := hook.ResolveScript(p)
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if err != nil {
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logger.Error.Println(err.Error())
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http.Error(w, err.Error(), http.StatusNotFound)
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return
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}
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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logger.Error.Printf("Error reading body: %v", err)
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http.Error(w, "can't read body", http.StatusBadRequest)
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return
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}
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params := tools.QueryParamsToShellVars(r.URL.Query())
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logger.Debug.Printf("Calling hook script \"%s\" with params %s...\n", script, params)
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params = append(params, tools.HTTPHeadersToShellVars(r.Header)...)
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// Create work
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timeout := atoiFallback(r.Header.Get("X-Hook-Timeout"), defaultTimeout)
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work := worker.NewWorkRequest(p, script, string(body), params, timeout)
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// Put work in queue
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worker.WorkQueue <- *work
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w.Header().Set("Content-Type", "text/event-stream")
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w.Header().Set("Cache-Control", "no-cache")
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w.Header().Set("Connection", "keep-alive")
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w.Header().Set("Access-Control-Allow-Origin", "*")
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logger.Debug.Println("Work request queued:", script)
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// fmt.Fprintf(w, "data: Running \"%s\" ...\n\n", work.Name)
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for {
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msg, open := <-work.MessageChan
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if !open {
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break
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}
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fmt.Fprintf(w, "data: %s\n\n", msg)
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// Flush the data immediatly instead of buffering it for later.
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flusher.Flush()
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}
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}
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