src/ftp/Elements.cc

   1 /*
   2  * Copyright (C) 1996-2015 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 09    File Transfer Protocol (FTP) */
  10
  11 #include "squid.h"
  12 #include "ftp/Elements.h"
  13 #include "HttpHdrCc.h"
  14 #include "HttpReply.h"
  15 #include "SBuf.h"
  16
  17 // FTP does not have a notion of a "protocol version" but we need something for
  18 // compatibility with the current HttpMsg wrapping layer. We use version 1.1:
  19 // * some ICAP services probably expect /1.0 or /1.1 when parsing HTTP headers;
  20 // * FTP commands are sent on a "persistent by default" connection, just like
  21 //   HTTP/1.1. Using 1.1 leads to fewer exceptions in current code shared by
  22 //   HTTP and FTP.
  23 AnyP::ProtocolVersion
  24 Ftp::ProtocolVersion()
  25 {
  26     return AnyP::ProtocolVersion(AnyP::PROTO_FTP, 1, 1);
  27 }
  28
  29 HttpReply *
  30 Ftp::HttpReplyWrapper(const int ftpStatus, const char *ftpReason, const Http::StatusCode httpStatus, const int64_t clen)
  31 {
  32     HttpReply *const reply = new HttpReply;
  33
  34     AnyP::ProtocolVersion httpVersion = Http::ProtocolVersion(
  35                                             Ftp::ProtocolVersion().major, Ftp::ProtocolVersion().minor);
  36     reply->sline.set(httpVersion, httpStatus);
  37
  38     HttpHeader &header = reply->header;
  39     header.putTime(HDR_DATE, squid_curtime);
  40     {
  41         HttpHdrCc cc;
  42         cc.Private(String());
  43         header.putCc(&cc);
  44     }
  45     if (ftpStatus > 0)
  46         header.putInt(HDR_FTP_STATUS, ftpStatus);
  47     if (ftpReason)
  48         header.putStr(HDR_FTP_REASON, ftpReason);
  49     if (clen >= 0)
  50         header.putInt64(HDR_CONTENT_LENGTH, clen);
  51     reply->hdrCacheInit();
  52     return reply;
  53 }
  54
  55 const SBuf &
  56 Ftp::cmdAppe()
  57 {
  58     static const SBuf cmd("APPE");
  59     return cmd;
  60 }
  61
  62 const SBuf &
  63 Ftp::cmdAuth()
  64 {
  65     static const SBuf cmd("AUTH");
  66     return cmd;
  67 }
  68
  69 const SBuf &
  70 Ftp::cmdCwd()
  71 {
  72     static const SBuf cmd("CWD");
  73     return cmd;
  74 }
  75
  76 const SBuf &
  77 Ftp::cmdDele()
  78 {
  79     static const SBuf cmd("DELE");
  80     return cmd;
  81 }
  82
  83 const SBuf &
  84 Ftp::cmdEprt()
  85 {
  86     static const SBuf cmd("EPRT");
  87     return cmd;
  88 }
  89
  90 const SBuf &
  91 Ftp::cmdEpsv()
  92 {
  93     static const SBuf cmd("EPSV");
  94     return cmd;
  95 }
  96
  97 const SBuf &
  98 Ftp::cmdList()
  99 {
 100     static const SBuf cmd("LIST");
 101     return cmd;
 102 }
 103
 104 const SBuf &
 105 Ftp::cmdMkd()
 106 {
 107     static const SBuf cmd("MKD");
 108     return cmd;
 109 }
 110
 111 const SBuf &
 112 Ftp::cmdMlsd()
 113 {
 114     static const SBuf cmd("MLSD");
 115     return cmd;
 116 }
 117
 118 const SBuf &
 119 Ftp::cmdMlst()
 120 {
 121     static const SBuf cmd("MLST");
 122     return cmd;
 123 }
 124
 125 const SBuf &
 126 Ftp::cmdNlst()
 127 {
 128     static const SBuf cmd("NLST");
 129     return cmd;
 130 }
 131
 132 const SBuf &
 133 Ftp::cmdRetr()
 134 {
 135     static const SBuf cmd("RETR");
 136     return cmd;
 137 }
 138
 139 const SBuf &
 140 Ftp::cmdRmd()
 141 {
 142     static const SBuf cmd("RMD");
 143     return cmd;
 144 }
 145
 146 const SBuf &
 147 Ftp::cmdRnfr()
 148 {
 149     static const SBuf cmd("RNFR");
 150     return cmd;
 151 }
 152
 153 const SBuf &
 154 Ftp::cmdRnto()
 155 {
 156     static const SBuf cmd("RNTO");
 157     return cmd;
 158 }
 159
 160 const SBuf &
 161 Ftp::cmdSmnt()
 162 {
 163     static const SBuf cmd("SMNT");
 164     return cmd;
 165 }
 166
 167 const SBuf &
 168 Ftp::cmdStat()
 169 {
 170     static const SBuf cmd("STAT");
 171     return cmd;
 172 }
 173
 174 const SBuf &
 175 Ftp::cmdStor()
 176 {
 177     static const SBuf cmd("STOR");
 178     return cmd;
 179 }
 180
 181 const SBuf &
 182 Ftp::cmdStou()
 183 {
 184     static const SBuf cmd("STOU");
 185     return cmd;
 186 }
 187
 188 const SBuf &
 189 Ftp::cmdUser()
 190 {
 191     static const SBuf cmd("USER");
 192     return cmd;
 193 }
 194