|
| 1 | +package arcmon |
| 2 | + |
| 3 | +import ( |
| 4 | + "bytes" |
| 5 | + "context" |
| 6 | + "fmt" |
| 7 | + "io" |
| 8 | + "net" |
| 9 | + "net/http" |
| 10 | + "os" |
| 11 | + "path/filepath" |
| 12 | + "strings" |
| 13 | + "time" |
| 14 | + |
| 15 | + "github.com/sirupsen/logrus" |
| 16 | + "gopkg.in/yaml.v2" |
| 17 | +) |
| 18 | + |
| 19 | +const ( |
| 20 | + ArcDpsURL = "https://www.deltaconnected.com/arcdps/x64/" |
| 21 | + ArcDPSCheckSumURL = ArcDpsURL + "d3d9.dll.md5sum" |
| 22 | + ArcDPSDLLURL = ArcDpsURL + "d3d9.dll" |
| 23 | + DefaultTickDuration = 10 * time.Minute |
| 24 | +) |
| 25 | + |
| 26 | +type ArcDPSVersion struct { |
| 27 | + Timestamp time.Time `yaml:"timestamp"` |
| 28 | + CheckSum string `yaml:"check_sum"` |
| 29 | +} |
| 30 | + |
| 31 | +func main() { |
| 32 | + f, err := os.Open(filepath.Dir(os.TempDir() + "/arcdps.yaml")) |
| 33 | + if err != nil { |
| 34 | + if err != os.ErrNotExist { |
| 35 | + logrus.Fatalf("err opening temp file: %v\n", err) |
| 36 | + } |
| 37 | + f, err = os.CreateTemp("", "/arcdps.yml") |
| 38 | + if err != nil { |
| 39 | + logrus.Fatalf("temp file not exists and unable to create new one: %v\n", err) |
| 40 | + } |
| 41 | + } |
| 42 | + |
| 43 | + arcdps := &ArcDPSVersion{} |
| 44 | + if err := yaml.NewDecoder(f).Decode(&arcdps); err != nil { |
| 45 | + logrus.Fatalf("unable to decode arcdps.yml: %v", err) |
| 46 | + } |
| 47 | + |
| 48 | + s := NewServer() |
| 49 | + s.Tick() |
| 50 | + |
| 51 | +} |
| 52 | + |
| 53 | +type Server struct { |
| 54 | + http *http.Client |
| 55 | + webhookURL string |
| 56 | +} |
| 57 | + |
| 58 | +func NewServer() *Server { |
| 59 | + return &Server{ |
| 60 | + http: &http.Client{ |
| 61 | + Transport: &http.Transport{ |
| 62 | + DialContext: (&net.Dialer{Timeout: 5 * time.Second}).DialContext, |
| 63 | + }, |
| 64 | + Timeout: 5 * time.Second, |
| 65 | + }, |
| 66 | + webhookURL: os.Getenv("DISCORD_WEBHOOK"), |
| 67 | + } |
| 68 | +} |
| 69 | + |
| 70 | +func (s *Server) Tick() { |
| 71 | + |
| 72 | +} |
| 73 | + |
| 74 | +func (s *Server) GetChecksum(ctx context.Context) (string, error) { |
| 75 | + req, err := http.NewRequestWithContext(ctx, "GET", ArcDPSCheckSumURL, nil) |
| 76 | + if err != nil { |
| 77 | + return "", err |
| 78 | + } |
| 79 | + |
| 80 | + resp, err := s.http.Do(req) |
| 81 | + if err != nil { |
| 82 | + return "", err |
| 83 | + } |
| 84 | + defer resp.Body.Close() |
| 85 | + |
| 86 | + body, err := io.ReadAll(resp.Body) |
| 87 | + if err != nil { |
| 88 | + return "", err |
| 89 | + } |
| 90 | + |
| 91 | + if resp.StatusCode > 299 { |
| 92 | + return "", fmt.Errorf("bad response from delta: (%s)", string(body)) |
| 93 | + } |
| 94 | + |
| 95 | + checkSumSplit := strings.Split(string(body), " ") |
| 96 | + if len(checkSumSplit) < 2 { |
| 97 | + return "", fmt.Errorf("incorrect size of checksum split") |
| 98 | + } |
| 99 | + return checkSumSplit[0], nil |
| 100 | + |
| 101 | +} |
| 102 | + |
| 103 | +func (s *Server) GetVersion(ctx context.Context) (time.Time, error) { |
| 104 | + req, err := http.NewRequestWithContext(ctx, "HEAD", ArcDPSDLLURL, nil) |
| 105 | + if err != nil { |
| 106 | + return time.Time{}, err |
| 107 | + } |
| 108 | + |
| 109 | + resp, err := s.http.Do(req) |
| 110 | + if err != nil { |
| 111 | + return time.Time{}, err |
| 112 | + } |
| 113 | + defer resp.Body.Close() |
| 114 | + |
| 115 | + if resp.StatusCode > 299 { |
| 116 | + body, err := io.ReadAll(resp.Body) |
| 117 | + if err != nil { |
| 118 | + return time.Time{}, err |
| 119 | + } |
| 120 | + return time.Time{}, fmt.Errorf("bad response from delta: (%s)", string(body)) |
| 121 | + } |
| 122 | + lastModified, err := time.Parse(time.RFC1123, resp.Header.Get("Last-Modified")) |
| 123 | + if err != nil { |
| 124 | + return time.Time{}, fmt.Errorf("unable to parse time: (%v)", err) |
| 125 | + } |
| 126 | + |
| 127 | + return lastModified, nil |
| 128 | +} |
| 129 | + |
| 130 | +func (s *Server) SendWebHook(ctx context.Context, checksum, time string) error { |
| 131 | + payload := bytes.NewBufferString(fmt.Sprintf(PayloadJSON, checksum, time)) |
| 132 | + req, err := http.NewRequestWithContext(ctx, "POST", s.webhookURL, payload) |
| 133 | + if err != nil { |
| 134 | + return err |
| 135 | + } |
| 136 | + |
| 137 | + resp, err := s.http.Do(req) |
| 138 | + if err != nil { |
| 139 | + return err |
| 140 | + } |
| 141 | + |
| 142 | + if resp.StatusCode > 299 { |
| 143 | + return fmt.Errorf("bad response from Discord: %d", resp.StatusCode) |
| 144 | + } |
| 145 | + return nil |
| 146 | +} |
| 147 | + |
| 148 | +var ( |
| 149 | + PayloadJSON = ` |
| 150 | +{ |
| 151 | + "content": null, |
| 152 | + "embeds": [ |
| 153 | + { |
| 154 | + "title": "ArcDPS has updated!", |
| 155 | + "color": 12124160, |
| 156 | + "fields": [ |
| 157 | + { |
| 158 | + "name": "CheckSum", |
| 159 | + "value": "%s" |
| 160 | + }, |
| 161 | + { |
| 162 | + "name": "Timestamp Version", |
| 163 | + "value": "%s", |
| 164 | + "inline": true |
| 165 | + }, |
| 166 | + { |
| 167 | + "name": "Direct Download Link", |
| 168 | + "value": "https://www.deltaconnected.com/arcdps/x64/d3d9.dll", |
| 169 | + "inline": true |
| 170 | + } |
| 171 | + ], |
| 172 | + "footer": { |
| 173 | + "text": "ArcDPS Monitor" |
| 174 | + } |
| 175 | + } |
| 176 | + ] |
| 177 | +}` |
| 178 | +) |
0 commit comments