119 lines
3.4 KiB
Go
119 lines
3.4 KiB
Go
package main
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import (
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"encoding/json"
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"io"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"slices"
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"strconv"
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"time"
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"gitlab.hamburg.ccc.de/ccchh/spaceapid/types"
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)
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func main() {
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var err error
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validUsername, success := os.LookupEnv("DOORIS_USERNAME")
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if !success || validUsername == "" {
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log.Fatalln("Could not retrieve DOORIS_API_KEY env variable or variable is empty")
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}
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validPassword, success := os.LookupEnv("DOORIS_PASSWORD")
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if !success || validPassword == "" {
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log.Fatalln("Could not retrieve DOORIS_API_KEY env variable or variable is empty")
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}
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templatePath, success := os.LookupEnv("SPACE_API_JSON_TEMPLATE_PATH")
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if !success || templatePath == "" {
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log.Fatalln("Could not retrieve SPACE_API_JSON_TEMPLATE_PATH env variable or variable is empty")
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}
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templatePathAbs, err := filepath.Abs(templatePath)
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if err != nil {
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log.Fatalln("Failed converting", templatePath, "to absolute path:", err)
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}
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log.Println("Reading initial SpaceAPI response from", templatePathAbs)
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initialJson, err := os.ReadFile(templatePathAbs)
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if err != nil {
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log.Fatalln("Failed reading file:", err)
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}
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spaceApiResponse := new(types.SpaceAPIResponseV14)
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err = json.Unmarshal(initialJson, spaceApiResponse)
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if err != nil {
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log.Fatalln("Could not parse SpaceAPI response template:", err)
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}
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if !slices.Contains(spaceApiResponse.APICompatibility, "14") {
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log.Fatalln("Provided SpaceAPI response doesn't specify compatibility with API version 14")
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}
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodGet {
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log.Println("Wrong METHOD from", r.RemoteAddr)
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w.Header().Set("allow", http.MethodGet)
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w.WriteHeader(http.StatusMethodNotAllowed)
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return
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}
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response, err := json.Marshal(spaceApiResponse)
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if err != nil {
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log.Println("Failed to serialize JSON response:", err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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_, _ = w.Write(response)
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})
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http.HandleFunc("/state/open", func(w http.ResponseWriter, r *http.Request) {
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username, password, ok := r.BasicAuth()
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if !ok || username != validUsername || password != validPassword {
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log.Println("Unauthorized request from", r.RemoteAddr)
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w.Header().Set("www-authentication", "Basic realm=\"space-api\"")
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w.WriteHeader(http.StatusUnauthorized)
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return
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}
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if r.Method != http.MethodPut {
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log.Println("Wrong METHOD from", r.RemoteAddr)
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w.Header().Set("allow", http.MethodPut)
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w.WriteHeader(http.StatusMethodNotAllowed)
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return
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}
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body, err := io.ReadAll(r.Body)
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if err != nil {
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log.Println("Failed to read request body from", r.RemoteAddr)
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w.WriteHeader(http.StatusInternalServerError)
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_, _ = io.WriteString(w, "Failed reading HTTP request body")
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return
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}
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newState, err := strconv.ParseBool(string(body))
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if err != nil {
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log.Println("Failed to parse request body from", r.RemoteAddr)
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w.WriteHeader(http.StatusBadRequest)
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_, _ = io.WriteString(w, "HTTP request body should either be true or false")
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return
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}
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spaceApiResponse.State.Open = newState
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spaceApiResponse.State.LastChange = time.Now().Unix()
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w.WriteHeader(http.StatusOK)
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_, _ = io.WriteString(w, "Update Successful")
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})
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log.Println("Starting HTTP server...")
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log.Fatalln(http.ListenAndServe(":8080", nil))
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}
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