1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238
|
/*
* ====================================================================
* Copyright (c) 1995-1997 Lyonel VINCENT. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" and "Apache Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* 5. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* mod_put: implements the PUT and DELETE methods
*
* version 1.1 (July 1998)
*
* Lyonel VINCENT <vincent@hpwww.ec-lyon.fr>
* modified by Krischan Jodies <krischan@roko.goe.net> to make it compile for
* Apache 1.3
*
* usage:
* EnablePut On|Off
* default value: Off
* context: Directory
* effect: enables (or disables) the PUT method for a
* whole directory.
*
* EnableDelete On|Off
* default value: Off
* context: Directory
* effect: enables (or disables) the DELETE method for a
* whole directory.
* umask <octal value>
* default value: 007
* context: Directory
* effect: sets the umask for a whole directory (see umask(1)).
*/
#include "ap_compat.h"
#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_log.h"
#include "http_protocol.h"
#include "ap_vercompat.h"
#define DEF_UMASK (S_IROTH | S_IWOTH | S_IXOTH)
typedef struct
{
int put_enabled;
int delete_enabled;
int umask;
} put_config_rec;
module put_module;
#define BLOCKSIZE 2048
const char *put_set_putenabled_flag (cmd_parms *cmd, put_config_rec *sec, int arg)
{
sec->put_enabled=arg;
return NULL;
}
const char *put_set_deleteenabled_flag (cmd_parms *cmd, put_config_rec *sec, int arg)
{
sec->delete_enabled=arg;
return NULL;
}
const char *put_set_umask (cmd_parms *cmd, put_config_rec *sec, char * arg)
{
sec->umask=strtol(arg,(char **)NULL,8);
return NULL;
}
command_rec put_cmds[] = {
{ "EnablePut", put_set_putenabled_flag, NULL, OR_AUTHCFG, FLAG, "Limited to 'on' or 'off'" },
{ "EnableDelete", put_set_deleteenabled_flag, NULL, OR_AUTHCFG, FLAG, "Limited to 'on' or 'off'" },
{ "umask", put_set_umask, NULL, OR_AUTHCFG, TAKE1, "numeric umask" },
{ NULL }
};
void *create_put_dir_config (pool *p, char *d)
{
put_config_rec * sec = (put_config_rec *)ap_pcalloc (p, sizeof(put_config_rec));
if (!sec) return NULL; /* no memory... */
sec -> put_enabled =0;
sec -> delete_enabled =0;
sec -> umask =DEF_UMASK;
return sec;
}
void make_dirs(pool * p, const char * filename, int umask)
{
char * sto = ap_pstrdup(p, filename), * slash=sto, * dirname=sto;
while(slash=strchr(slash+1,'/'))
{
*slash='\0';
*dirname='/';
mkdir(sto,(S_IRWXU | S_IRWXG | S_IRWXO) & ~umask);
dirname=slash;
}
}
int do_put(request_rec *r)
{
put_config_rec *sec = (put_config_rec *)ap_get_module_config (r->per_dir_config, &put_module);
FILE * f;
int result=OK, len=0;
mode_t old_umask;
char * buffer;
if(!sec->put_enabled) return FORBIDDEN;
old_umask = umask(sec->umask);
if(r->path_info) /* a directory did not exist */
{
r->filename = ap_pstrcat(r->pool, r->filename, r->path_info, NULL);
make_dirs(r->pool,r->filename,sec->umask);
}
f = ap_pfopen(r->pool, r->filename, "w");
if(f == NULL)
{
ap_log_reason("file permissions deny server write access",r->filename,r);
umask(old_umask);
return FORBIDDEN;
}
if((result=ap_setup_client_block(r,REQUEST_CHUNKED_DECHUNK))==OK)
{
if(ap_should_client_block(r))
{
buffer = ap_palloc(r->pool, BLOCKSIZE);
while((len=ap_get_client_block(r,buffer,BLOCKSIZE))>0)
fwrite(buffer,len,1,f);
}
ap_send_http_header(r);
ap_rprintf(r,"<HTML>File %s created.</HTML>\n",ap_escape_html(r->pool, r->uri));
}
ap_pfclose(r->pool,f);
umask(old_umask);
return result;
}
int do_delete(request_rec *r)
{
put_config_rec *sec = (put_config_rec *)ap_get_module_config (r->per_dir_config, &put_module);
if(!sec->delete_enabled) return FORBIDDEN;
if(r->finfo.st_mode == 0) return NOT_FOUND;
if(unlink(r->filename))
{
ap_log_reason("file permissions deny file deletion",r->filename,r);
return FORBIDDEN;
}
ap_send_http_header(r);
ap_rprintf(r,"<HTML>File %s deleted.</HTML>\n",ap_escape_html(r->pool, r->uri));
return OK;
}
int put_handler(request_rec *r)
{
if(r->proxyreq) return DECLINED;
if(r->method_number == M_PUT) return do_put(r);
else
if(r->method_number == M_DELETE) return do_delete(r);
return DECLINED;
}
handler_rec put_handlers[] =
{
{ "*/*", put_handler },
{ NULL }
};
module put_module = {
STANDARD_MODULE_STUFF,
NULL, /* initializer */
create_put_dir_config, /* dir config creater */
NULL, /* dir merger --- default is to override */
NULL, /* server config */
NULL, /* merge server config */
put_cmds, /* command table */
put_handlers, /* handlers */
NULL, /* filename translation */
NULL, /* check_user_id */
NULL, /* check access rights */
NULL, /* check access */
NULL, /* type_checker */
NULL, /* fixups */
NULL, /* logger */
NULL /* header parser */
};
|