0
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1 /*
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2 client.go : client-program.
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4
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3 Version : 1.1
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4 Last Change: 2018-10-12 金 13:42:55.
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0
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5
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6 install to: rsearcher_root/
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7
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8 rsearcher_root/client.exe
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9 + grsearcher.exe
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10 + app.conf
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11 + verup.bat
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12 + auth.db ( temporary )
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13 + hhs.db ( temporary )
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14 + index.db ( 10 days )
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3
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15 + image/*.png, *.jpg
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0
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16 + doc/
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4
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17 + .cache/* ( temporary )
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0
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18
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19 $ client.exe -r 192.168.0.1:3910 # get new release
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20 $ client.exe -u 192.168.0.1:3910 # get new dbs
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21 $ client.exe 192.168.0.1:3910 0800012345 20171231 # get images
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22 */
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23 package main
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24
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25 import (
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26 "archive/tar"
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27 "bytes"
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28 "compress/gzip"
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29 "flag"
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30 "fmt"
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31 "io"
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32 "io/ioutil"
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33 "log"
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34 "net/http"
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35 "os"
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36 "path/filepath"
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37 "regexp"
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38 "time"
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39 )
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40
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4
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41 var version string
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42
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43 func init() {
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44 version = "1.1"
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45 }
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46
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0
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47 func main() {
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48 var upgrade = flag.Bool( "r", false, "" ) // get grsearcher.exe, client.exe
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4
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49 var update = flag.Bool( "u", false, "" ) // get auth.db, hhs.db, index.db(14,28)
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50 var upload = flag.Bool( "a", false, "" ) // post somefile
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51 var printver = flag.Bool( "v", false, "" ) // print version
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52 flag.Parse()
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53
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4
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54 // print version
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55 if *printver {
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56 fmt.Println( "client ( version ", version, ")" )
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57 os.Exit( 0 )
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58 }
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59
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60 // upload
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61 if *upload {
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62 if flag.NArg() != 2 {
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63 fmt.Fprintf( os.Stderr, "bad host or file.\n" )
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64 os.Exit( 1 )
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65 }
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66 host := flag.Args()[0]
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67 file := flag.Args()[1]
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68 fmt.Printf( "Sending %s...", file )
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69 f, err := os.Open( file )
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70 if err != nil {
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71 log.Fatal( err )
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72 }
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73 defer f.Close()
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74
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75 res, err := http.Post( "http://" + host + "/upload", "binary/octet-stream", f )
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76 if err != nil {
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77 log.Fatal( err )
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78 }
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79 defer res.Body.Close()
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80 message, _ := ioutil.ReadAll( res.Body )
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81 fmt.Println( string( message ) )
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82
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83 os.Exit( 0 )
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84 }
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85
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86 // software upgrade
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0
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87 if *upgrade {
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88 if flag.NArg() != 1 {
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89 fmt.Fprintf( os.Stderr, "bad remote host.\n" )
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90 os.Exit( 1 )
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91 }
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1
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92 fmt.Print( "Getting grsearcher.exe..." )
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93 host := flag.Args()[0]
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94 if _, err := get_file( host, "/release/grsearcher.exe", "grsearcher.exe" ); err != nil {
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95 log.Fatal( err )
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96 }
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4
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97 fmt.Print( "Getting crypto.exe..." )
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98 if _, err := get_file( host, "/release/crypto.exe", "crypto.exe" ); err != nil {
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99 log.Fatal( err )
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100 }
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1
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101 fmt.Print( "Getting client.exe..." )
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102 if _, err := get_file( host, "/release/client.exe", "client1.exe" ); err != nil {
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103 log.Fatal( err )
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104 }
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105 os.Exit( 0 )
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106 }
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107
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4
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108 // database update
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109 if *update {
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110 if flag.NArg() != 1 {
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111 fmt.Fprintf( os.Stderr, "bad remote host.\n" )
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112 os.Exit( 1 )
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113 }
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1
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114 fmt.Print( "Getting auth.db..." )
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115 host := flag.Args()[0]
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116 if _, err := get_file( host, "/db/auth.db", "auth.db" ); err != nil {
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117 log.Fatal( err )
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118 }
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1
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119 fmt.Print( "Getting hhs.db..." )
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120 if _, err := get_file( host, "/db/hhs.db", "hhs.db" ); err != nil {
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121 log.Fatal( err )
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122 }
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123
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4
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124 if time.Now().Day() % 14 == 0 {
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1
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125 fmt.Print( "Getting index.db..." )
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126 if _, err := get_file( host, "/db/index.db", "index.db" ); err != nil {
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127 log.Fatal( err )
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128 }
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129 }
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130 os.Exit( 0 )
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131 }
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132
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4
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133 // main : image download
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134 if flag.NArg() != 3 {
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135 fmt.Fprintf( os.Stderr, "bad argument.\n" )
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136 os.Exit( 1 )
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137 }
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138
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139 host := flag.Args()[0]
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140 h := flag.Args()[1]
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141 d := flag.Args()[2]
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142
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143 r, err := regexp.Compile( "^0[1238][0-9]{8}$" )
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144 if err != nil {
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145 log.Fatal( err )
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146 }
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147 m := r.FindString( h )
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148 if len( m ) == 0 {
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149 fmt.Fprintf( os.Stderr, "bad hno.\n" )
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150 os.Exit( 1 )
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151 }
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152
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153 rfile := "/images/" + d + "/" + h + ".tgz"
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154 b, err := get_file( host, rfile, "" )
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155 if err != nil {
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156 log.Fatal( err )
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157 }
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158 if err := untgz_images( d, b ); err != nil {
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159 log.Fatal( err )
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160 }
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161 }
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162
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163 /* Subroutines */
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164 // HTTP GET
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165 func get_file( host, rfile, lfile string ) ( []byte, error ) {
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166 res, err := http.Get( "http://" + host + "/" + rfile )
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167 if err != nil {
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168 return nil, err
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169 }
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1
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170 fmt.Println( "\t[" + res.Status + "]" )
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171 if res.StatusCode == http.StatusNotFound {
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172 return nil, nil
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173 }
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0
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174 b, err := ioutil.ReadAll( res.Body )
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175 res.Body.Close()
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176 if err != nil {
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177 return nil, err
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178 }
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179 if lfile != "" {
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180 if err := ioutil.WriteFile( lfile, b, 0644 ); err != nil {
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181 return nil, err
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182 }
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183 return nil, nil
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184 }
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185 return b, nil
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186 }
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187
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188 // Un-Tar/Gzip
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189 func untgz_images( d string, b []byte ) error {
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190 br := bytes.NewReader( b )
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191 zr, err := gzip.NewReader( br )
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192 if err != nil {
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193 return err
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194 }
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195
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196 tr := tar.NewReader( zr )
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197 for i := 1; ; i++ {
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198 //hdr, err := tr.Next()
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199 _, err := tr.Next()
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200 if err == io.EOF {
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201 break // End of archive
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202 }
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203 if err != nil {
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204 return err
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205 }
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206 //f, _ := os.Create( hdr.Name )
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3
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207 fn := fmt.Sprintf( "%s_%d", d, i ) // 1.0a
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0
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208
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209 fn = filepath.Join( ".cache", fn )
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210 f, _ := os.Create( fn )
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211 if _, err := io.Copy( f, tr ); err != nil {
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212 return err
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213 }
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214 f.Close()
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215 }
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216
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217 if err := zr.Close(); err != nil {
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218 return err
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219 }
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220 return nil
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221 }
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222
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