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1 /*
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2 Last Change: 2020-04-16 木 17:15:49.
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3 */
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4
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5 package main
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6
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7 import (
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8 "encoding/csv"
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9 "fmt"
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10 "io"
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11 "io/ioutil"
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12 "log"
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13 "net"
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14 "net/http"
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15 "os"
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16 "path/filepath"
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17 "strconv"
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18 "strings"
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19 )
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20
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21 type hhs struct {
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22 No string
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23 //Birth string
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24 Name string
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25 //Kana string
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26 Addr string
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27 //Sex string
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28 Ccn []string
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29 }
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30
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31 func (h *hhs) GetData() string {
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32 s := strings.Join(h.Ccn, "#")
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33 s = strings.Join([]string{h.Name, h.Addr, s}, ":")
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34 return s
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35 }
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36
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37 func (h *hhs) GetRecent() string {
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38 ccn := ""
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39 if len(h.Ccn) > 0 {
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40 ccn = h.Ccn[0]
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41 }
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42 return strings.Join([]string{h.No, h.Name, ccn}, ",")
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43 }
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44
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45 var (
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46 server string
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47 port string
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48 hhsdb string
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49 img_root string
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50 hhash map[string]hhs
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51 iymdhash map[string]string
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52 iyhash map[string]string
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53 )
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54
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55 func init() {
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56 port = ":3910"
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57 hhsdb = "hhsdb.csv"
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58 img_root = "./images"
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59 hhash = make(map[string]hhs)
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60 iymdhash = make(map[string]string)
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61 iyhash = make(map[string]string)
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62 }
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63
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64 func main() {
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65
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66 // setting IP-Address & Port
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67 addrs, err := net.InterfaceAddrs()
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68 if err != nil {
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69 log.Fatal(err)
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70 }
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71 for _, a := range addrs {
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72 if ipnet, ok := a.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
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73 if strings.HasPrefix(ipnet.IP.String(), "169.254") {
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74 continue
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75 }
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76 if ipnet.IP.To4() != nil {
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77 server = ipnet.IP.String() + port
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78 }
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79 }
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80 }
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81
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82 if err := loadDB(); err != nil {
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83 log.Fatal(err)
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84 }
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85
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86 // Http-Handler
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87 http.HandleFunc("/h/", hhs_handler)
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88 http.HandleFunc("/ha/", hhsdb_handler)
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89 http.HandleFunc("/u/", uphhsdb_handler)
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90 http.HandleFunc("/i/", image_handler)
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91 http.HandleFunc("/r/", recent_handler)
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92 http.HandleFunc("/d/", index_handler)
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93
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94 log.Fatal(http.ListenAndServe(server, nil))
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95 }
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96
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97 func loadDB() error {
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98 b, err := ioutil.ReadFile(hhsdb)
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99 if err != nil {
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100 return err
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101 }
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102 r := csv.NewReader(strings.NewReader(string(b)))
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103 for {
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104 record, err := r.Read()
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105 if err == io.EOF {
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106 break
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107 }
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108 if err != nil {
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109 return err
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110 }
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111 h := hhs{
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112 No: record[0],
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113 //Birth: record[1],
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114 Name: record[2],
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115 //Kana: record[3],
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116 Addr: record[4],
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117 //Sex: record[5],
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118 }
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119 hhash[record[0]] = h
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120 }
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121
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122 b, err = ioutil.ReadFile("index.csv")
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123 if err != nil {
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124 return err
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125 }
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126 r = csv.NewReader(strings.NewReader(string(b)))
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127 for {
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128 record, err := r.Read()
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129 if err == io.EOF {
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130 break
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131 }
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132 if err != nil {
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133 return err
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134 }
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135 h := hhash[record[0]]
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136 ccn := h.Ccn
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137 h.Ccn = append(ccn, record[1])
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138 hhash[record[0]] = h
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139
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140 iymdhash[record[1]] += ":" + record[0]
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141 }
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142
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143 for ymd, _ := range iymdhash {
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144 y := ymd[0:4]
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145 if ymd[4:6] == "01" || ymd[4:6] == "02" || ymd[4:6] == "03" {
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146 yy, _ := strconv.Atoi(y)
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147 y = fmt.Sprintf("%d", yy - 1)
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148 }
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149 iyhash[y] += ":" + ymd
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150 }
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151
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152 return nil
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153 }
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154
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155 /* Get /h/0800012345 -> name:addr:ymd1#ymd2#... */
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156 func hhs_handler(w http.ResponseWriter, r *http.Request) {
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157 hno := r.URL.Path[len("/h/"):]
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158 s := ""
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159 if h, ok := hhash[hno]; ok {
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160 s = h.GetData()
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161 }
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162 w.Write([]byte(s))
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163 }
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164
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165 /* Get /ha/ -> hhsdb.csv for Mover */
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166 func hhsdb_handler(w http.ResponseWriter, r *http.Request) {
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167 b, _ := ioutil.ReadFile(hhsdb)
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168 w.Write(b)
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169 }
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170
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171 /* Get /i/20200110/0800012345.tgz */
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172 func image_handler(w http.ResponseWriter, r *http.Request) {
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173 file := r.URL.Path[len("/i/"):]
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174 file = filepath.Join(img_root, filepath.FromSlash(file))
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175
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176 f, err := os.Open(file)
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177 if err != nil {
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178 http.NotFound(w, r)
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179 return
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180 }
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181 defer f.Close()
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182
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183 fi, _ := f.Stat()
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184
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185 w.Header().Set("Content-Type", "rsearcher/octet-stream")
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186 w.Header().Set("Content-Length", fmt.Sprintf("%d", fi.Size()))
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187 io.Copy(w, f)
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188 }
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189
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190 /* Get /r/0800012345:0800067890:0800099999:... */
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191 func recent_handler(w http.ResponseWriter, r *http.Request) {
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192 hnolist := strings.Split(r.URL.Path[len("/r/"):], ":")
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193 var buf []string
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194 for _, hno := range hnolist {
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195 s := hno + ",,"
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196 if h, ok := hhash[hno]; ok {
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197 s = h.GetRecent()
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198 if h.No == "" {
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199 s = hno + s
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200 }
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201 }
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202 buf = append(buf, s)
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203 }
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204 w.Write([]byte(strings.Join(buf, ":")))
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205 }
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206
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207 /* Get /d/20xx -> 20xx0401:2020xx0408:... , /d/20xx0401 -> 0800012345:0800098765:... */
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208 func index_handler(w http.ResponseWriter, r *http.Request) {
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209 var buf string
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210 ymd := r.URL.Path[len("/d/"):]
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211 if len(ymd) == 4 {
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212 buf = iyhash[ymd]
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213 }
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214 if len(ymd) == 8 {
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215 buf = iymdhash[ymd]
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216 }
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217 w.Write([]byte(buf[1:]))
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218 }
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219
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220 func uphhsdb_handler(w http.ResponseWriter, r *http.Request) {
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221 server_root := filepath.Dir(os.Args[0])
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222 file := filepath.Join(server_root, "db", hhsdb)
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223 f, err := os.Create(file)
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224 if err != nil {
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225 http.NotFound(w, r)
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226 return
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227 }
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228 n, err := io.Copy(f, r.Body)
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229 if err != nil {
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230 http.NotFound(w, r)
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231 return
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232 }
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233 f.Close()
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234 w.Write([]byte(fmt.Sprintf("%d bytes are recieved.\n", n)))
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235 }
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236
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