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annotate liboctave/util/url-transfer.h @ 20595:c1a6c31ac29a

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eliminate more simple uses of error_state * ov-classdef.cc: Eliminate simple uses of error_state.
author John W. Eaton <jwe@octave.org>
date Tue, 06 Oct 2015 00:20:02 -0400
parents 4197fc428c7d
children
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1 /*
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2
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3 Copyright (C) 2013-2015 John W. Eaton
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4 Copyright (C) 2006-2015 Alexander Barth
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5 Copyright (C) 2009 David Bateman
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6
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7 This file is part of Octave.
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8
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9 Octave is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 3 of the License, or (at your
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12 option) any later version.
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13
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14 Octave is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with Octave; see the file COPYING. If not, see
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21 <http://www.gnu.org/licenses/>.
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22
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23 */
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24
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25 // Author: Alexander Barth <abarth@marine.usf.edu>
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26 // Author: jwe
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27
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28 #if !defined (octave_url_transfer_h)
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29 #define octave_url_transfer_h 1
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30
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31 #include <iosfwd>
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32 #include <string>
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33
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34 class
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35 OCTAVE_API
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36 base_url_transfer
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37 {
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38 private:
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39
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40 static void delete_file (const std::string& file);
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41
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42 static void reset_path (base_url_transfer *curl_xfer)
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43 {
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44 curl_xfer->cwd ("..");
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45 }
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46
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47 public:
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48
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49 friend class url_transfer;
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50
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51 base_url_transfer (void)
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52 : count (1), host_or_url (), valid (false), ftp (false),
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53 ascii_mode (false), ok (true), errmsg (),
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54 curr_istream (&std::cin), curr_ostream (&std::cout)
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55 { }
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56
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57 base_url_transfer (const std::string& host,
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58 const std::string& /* user_arg */,
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59 const std::string& /* passwd */,
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60 std::ostream& os)
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61 : count (1), host_or_url (host), valid (false), ftp (true),
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62 ascii_mode (false), ok (true), errmsg (), curr_istream (&std::cin),
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63 curr_ostream (&os) { }
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64
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65 base_url_transfer (const std::string& url, std::ostream& os)
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66 : count (1), host_or_url (url), valid (false), ftp (false),
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67 ascii_mode (false), ok (true), errmsg (),
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68 curr_istream (&std::cin), curr_ostream (&os) { }
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69
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70 virtual ~base_url_transfer (void) { }
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71
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72 bool is_valid (void) const { return valid; }
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73
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74 bool good (void) const { return valid && ok; }
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75
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76 virtual void perform (void) { }
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77
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78 virtual std::string lasterror (void) const { return errmsg; }
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79
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80 virtual std::ostream& set_ostream (std::ostream& /* os */)
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81 {
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82 return *curr_ostream;
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83 }
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84
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85 virtual std::istream& set_istream (std::istream& /* is */)
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86 {
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87 return *curr_istream;
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88 }
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89
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90 virtual void ascii (void) { }
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91
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92 virtual void binary (void) { }
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93
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94 bool is_ascii (void) const { return ascii_mode; }
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95
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96 bool is_binary (void) const { return !ascii_mode; }
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97
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98 virtual void cwd (const std::string& /* path */) { }
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99
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100 virtual void del (const std::string& /* file */) { }
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101
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102 virtual void rmdir (const std::string& /* path */) { }
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103
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104 virtual void mkdir (const std::string& /* path */) { }
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105
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106 virtual void rename (const std::string& /* oldname */,
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107 const std::string& /* newname */) { }
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108
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109 virtual void put (const std::string& /* file */,
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110 std::istream& /* is */) { }
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111
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112 virtual void get (const std::string& /* file */,
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113 std::ostream& /* os */) { }
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114
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115 void mget_directory (const std::string& directory,
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116 const std::string& target);
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117
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118 string_vector mput_directory (const std::string& base,
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119 const std::string& directory);
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120
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121 virtual void dir (void) { }
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122
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123 virtual string_vector list (void) { return string_vector (); }
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124
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125 virtual void get_fileinfo (const std::string& /* filename */,
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126 double& /* filesize */,
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127 time_t& /* filetime */,
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128 bool& /* fileisdir */) { }
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129
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130 virtual std::string pwd (void) { return std::string (); }
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131
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132 virtual void http_get (const Array<std::string>& /* param */) { }
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133
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134 virtual void http_post (const Array<std::string>& /* param */) { }
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135
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136 virtual void http_action (const Array<std::string>& /* param */,
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137 const std::string& /* action */) { }
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138
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139 protected:
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140
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141 // Reference count.
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142 octave_refcount<size_t> count;
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143
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144 // Host for ftp transfers or full URL for http requests.
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145 std::string host_or_url;
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146 bool valid;
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147 bool ftp;
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148 bool ascii_mode;
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149 bool ok;
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150 std::string errmsg;
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151 std::istream *curr_istream;
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152 std::ostream *curr_ostream;
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153
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154 private:
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155
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156 // No copying!
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157
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158 base_url_transfer (const base_url_transfer&);
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159
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160 base_url_transfer& operator = (const base_url_transfer&);
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161 };
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162
17933
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163 class
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164 OCTAVE_API
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165 url_transfer
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166 {
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167 public:
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168
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169 url_transfer (void);
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170
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171 url_transfer (const std::string& host, const std::string& user,
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172 const std::string& passwd, std::ostream& os);
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173
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174 url_transfer (const std::string& url, std::ostream& os);
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175
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176 url_transfer (const url_transfer& h) : rep (h.rep)
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177 {
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178 rep->count++;
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179 }
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180
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181 ~url_transfer (void)
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182 {
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183 if (--rep->count == 0)
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184 delete rep;
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185 }
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186
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187 url_transfer& operator = (const url_transfer& h)
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188 {
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189 if (this != &h)
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190 {
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191 if (--rep->count == 0)
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192 delete rep;
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193
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194 rep = h.rep;
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195 rep->count++;
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196 }
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197
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198 return *this;
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199 }
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200
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201 bool is_valid (void) const { return rep->is_valid (); }
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202
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203 bool good (void) const { return rep->good (); }
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204
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205 std::string lasterror (void) const { return rep->lasterror (); }
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206
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207 std::ostream& set_ostream (std::ostream& os)
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208 {
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209 return rep->set_ostream (os);
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210 }
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211
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212 std::istream& set_istream (std::istream& is)
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213 {
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214 return rep->set_istream (is);
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215 }
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216
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217 void ascii (void) { rep->ascii (); }
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218
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219 void binary (void) { rep->binary (); }
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220
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221 bool is_ascii (void) const { return rep->is_ascii (); }
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222
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223 bool is_binary (void) const { return rep->is_binary (); }
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224
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225 void cwd (const std::string& path) { rep->cwd (path); }
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226
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227 void del (const std::string& file) { rep->del (file); }
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228
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229 void rmdir (const std::string& path) { rep->rmdir (path); }
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230
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231 void mkdir (const std::string& path) { rep->mkdir (path); }
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232
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233 void rename (const std::string& oldname, const std::string& newname)
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234 {
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235 rep->rename (oldname, newname);
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236 }
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237
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238 void put (const std::string& file, std::istream& is)
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239 {
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240 rep->put (file, is);
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241 }
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242
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243 void get (const std::string& file, std::ostream& os)
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244 {
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245 rep->get (file, os);
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246 }
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247
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248 void mget_directory (const std::string& directory,
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249 const std::string& target)
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250 {
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251 rep->mget_directory (directory, target);
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252 }
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253
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254 string_vector mput_directory (const std::string& base,
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255 const std::string& directory)
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256 {
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257 return rep->mput_directory (base, directory);
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258 }
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259
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260 void dir (void) { rep->dir (); }
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261
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262 string_vector list (void) { return rep->list (); }
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263
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264 void get_fileinfo (const std::string& filename, double& filesize,
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265 time_t& filetime, bool& fileisdir)
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266 {
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267 rep->get_fileinfo (filename, filesize, filetime, fileisdir);
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268 }
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269
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270 std::string pwd (void) { return rep->pwd (); }
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271
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272 void http_get (const Array<std::string>& param) { rep->http_get (param); }
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273
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274 void http_post (const Array<std::string>& param) { rep->http_post (param); }
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275
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276 void http_action (const Array<std::string>& param,
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277 const std::string& action)
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278 {
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279 rep->http_action (param, action);
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280 }
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281
17555
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282 private:
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283
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284 base_url_transfer *rep;
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285 };
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286
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287 #endif