diff options
| -rw-r--r-- | .gitignore | 2 | ||||
| -rw-r--r-- | categories.txt | 49 | ||||
| -rw-r--r-- | go.mod | 8 | ||||
| -rw-r--r-- | go.sum | 4 | ||||
| -rw-r--r-- | server.go | 126 |
5 files changed, 189 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore index 9a3a8d8..efceea2 100644 --- a/.gitignore +++ b/.gitignore @@ -12,3 +12,5 @@ # Output of the go coverage tool, specifically when used with LiteIDE *.out +# TLEs +data/ diff --git a/categories.txt b/categories.txt new file mode 100644 index 0000000..770e480 --- /dev/null +++ b/categories.txt @@ -0,0 +1,49 @@ +tations +visual +active +analyst +2019-006 +1999-025 +iridium-33-debris +cosmos-2251-debris +2012-044 +weather +noaa +goes +resource +sarsat +dmc +tdrss +argos +planet +spire +geo +intelsat +ses +iridium +iridium-NEXT +starlink +orbcomm +globalstar +amateur +x-comm +other-comm +satnogs +gorizont +raduga +molniya +gps-ops +glo-ops +galileo +beidou +sbas +nnss +musson +science +geodetic +engineering +education +military +radar +cubesat +other diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..73f7e7e --- /dev/null +++ b/go.mod @@ -0,0 +1,8 @@ +module git.darknebu.la/Satellite/TLE2JSON + +go 1.12 + +require ( + git.darknebu.la/Satellite/TLE v0.0.0-20190829210835-ce5042e51ea2 + github.com/gorilla/mux v1.7.3 +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..e4cc836 --- /dev/null +++ b/go.sum @@ -0,0 +1,4 @@ +git.darknebu.la/Satellite/TLE v0.0.0-20190829210835-ce5042e51ea2 h1:vNbVQb+qEzatcMlSD7nXnE5UepVHsjM2cbg3wik3/9g= +git.darknebu.la/Satellite/TLE v0.0.0-20190829210835-ce5042e51ea2/go.mod h1:nm5ECKwvODjivHre4SKW/WydMHAxXCC+EG1ckQHHhqs= +github.com/gorilla/mux v1.7.3 h1:gnP5JzjVOuiZD07fKKToCAOjS0yOpj/qPETTXCCS6hw= +github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs= diff --git a/server.go b/server.go new file mode 100644 index 0000000..5524b0a --- /dev/null +++ b/server.go @@ -0,0 +1,126 @@ +package main + +import ( + "encoding/json" + "fmt" + "io/ioutil" + "log" + "os" + "strings" + + "net/http" + + TLE "git.darknebu.la/Satellite/TLE" + "github.com/gorilla/mux" +) + +var ( + categories []string +) + +func main() { + r := mux.NewRouter() + + r.HandleFunc("/", indexHandler) + r.HandleFunc("/dumpall", dumpallHandler) + r.HandleFunc("/{station}/{name}", getHandler) + + log.Fatal(http.ListenAndServe(":8080", r)) +} + +func indexHandler(w http.ResponseWriter, r *http.Request) { + fmt.Fprintf(w, "%s", "<h1>Hello World</h1>") +} + +// dumpallHandler dumps all categories +func dumpallHandler(w http.ResponseWriter, r *http.Request) { + log.Println("[ ] Dumping all TLEs") + + // read the name of the categories from the categories.txt file and write + // the result to the categories slice + content, err := ioutil.ReadFile("categories.txt") + if err != nil { + log.Printf("%s", "could not read categories.txt file!") + } + lines := strings.Split(string(content), "\n") + + for _, line := range lines { + categories = append(categories, line) + } + + // download all the categories to the data/<category name> directory + for _, category := range categories { + downloadCategory(category) + } + + log.Println("[+] Done dumping all TLEs") +} + +// downloadCategory downloads the given category from celestrack +func downloadCategory(categoryName string) { + + // define where to download the TLEs from + base := "https://celestrak.com/NORAD/elements/" + downloadURL := fmt.Sprintf("%s%s.txt", base, categoryName) + + // define the HTTP GET request and make it + resp, err := http.Get(downloadURL) + if err != nil { + log.Printf("Could not download %s", categoryName) + } + defer resp.Body.Close() + + // read the respose from the GET request + body, err := ioutil.ReadAll(resp.Body) + if err != nil { + log.Printf("Could not read the category %s", categoryName) + } + + // write the response to the corresponding file + filename := fmt.Sprintf("data/%s.txt", categoryName) + f, err := os.Create(filename) // creating the file + if err != nil { + fmt.Printf("Could not create file data/%s.txt", categoryName) + } + _, err = f.WriteString(string(body)) // writing the TLE to the file + if err != nil { + fmt.Printf("Could not write to file data/%s.txt", categoryName) + } +} + +// get Handler returns the specified TLE +func getHandler(w http.ResponseWriter, r *http.Request) { + vars := mux.Vars(r) + + // read the TLEs from the categories file + //content, err := ioutil.ReadFile("categories.txt") + //if err != nil { + // log.Println("Could note read categories.txt") + //} + + // handle the response according to the query parameter "format" + // if ?format=json is given, return + if r.URL.Query().Get("format") == "json" { + w.Header().Set("Content-Type", "application/json") + + RawTLE := `ISS (ZARYA) +1 25544U 98067A 19229.39083552 .00000228 00000-0 11917-4 0 9993 +2 25544 51.6447 57.6210 0007373 294.0868 138.8050 15.50381554184754` + + JsonTLE, err := TLE.NewTLE(RawTLE) + if err != nil { + fmt.Println(err) + } + + // convert the TLE to json + b, err := json.MarshalIndent(JsonTLE, "", " ") + if err != nil { + fmt.Println("error: ", err) + } + fmt.Fprintf(w, string(b)) + //fmt.Fprintf(w, "{\"response\": \"Getting the TLE for %s/%s as json\"}", vars["station"], vars["name"]) + } else { + fmt.Fprintf(w, "Getting the TLE for %s/%s raw", vars["station"], vars["name"]) + } + +} |
