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1798a0183a
* Make some renames in the session module - avoid having a function called 'delete' so that we don't piss any C++ compilers. Also rename the {startup,shutdown}_globals to {startup,shutdown}_session_globals, so that they're a bit less general names, and made them static. * Remove uselss variables
184 lines
4.3 KiB
C
184 lines
4.3 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP HTML Embedded Scripting Language Version 4.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997,1998 PHP Development Team (See Credits file) |
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+----------------------------------------------------------------------+
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| This program is free software; you can redistribute it and/or modify |
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| it under the terms of one of the following licenses: |
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| A) the GNU General Public License as published by the Free Software |
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| Foundation; either version 2 of the License, or (at your option) |
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| any later version. |
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| |
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| B) the PHP License as published by the PHP Development Team and |
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| included in the distribution in the file: LICENSE |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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| |
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| You should have received a copy of both licenses referred to here. |
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| If you did not, or have any questions about PHP licensing, please |
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| contact core@php.net. |
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+----------------------------------------------------------------------+
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| Authors: Sascha Schumann <ss@2ns.de> |
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+----------------------------------------------------------------------+
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*/
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include "php.h"
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#include "php_session.h"
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#include "mod_files.h"
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#include "ext/standard/flock_compat.h"
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typedef struct {
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int fd;
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char *lastkey;
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char *basedir;
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int dirdepth;
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} ps_files;
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ps_module ps_mod_files = {
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PS_MOD(files)
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};
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#define PS_FILES_DATA ps_files *data = *mod_data
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PS_OPEN_FUNC(files)
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{
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ps_files *data;
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char *p;
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data = ecalloc(sizeof(*data), 1);
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*mod_data = data;
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data->fd = -1;
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if((p = strchr(save_path, ':'))) {
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data->dirdepth = strtol(save_path, NULL, 10);
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save_path = p + 1;
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}
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data->basedir = estrdup(save_path);
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return SUCCESS;
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}
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PS_CLOSE_FUNC(files)
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{
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PS_FILES_DATA;
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if(data->fd > -1) close(data->fd);
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if(data->lastkey) efree(data->lastkey);
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efree(data->basedir);
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efree(data);
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*mod_data = NULL;
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return SUCCESS;
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}
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#if WIN32|WINNT
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#define DIR_DELIMITER '\\'
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#else
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#define DIR_DELIMITER '/'
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#endif
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static void _ps_files_open(ps_files *data, const char *key)
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{
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char buf[MAXPATHLEN];
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const char *p;
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int i;
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int n;
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int keylen;
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if(data->fd < 0 || !data->lastkey || strcmp(key, data->lastkey)) {
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if(data->lastkey) efree(data->lastkey);
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if(data->fd > -1) close(data->fd);
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keylen = strlen(key);
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if(keylen <= data->dirdepth || MAXPATHLEN <
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(strlen(data->basedir) + 2 * data->dirdepth + keylen + 5))
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return;
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p = key;
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n = sprintf(buf, "%s/", data->basedir);
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for(i = 0; i < data->dirdepth; i++) {
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buf[n++] = *p++;
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buf[n++] = DIR_DELIMITER;
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}
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strcat(buf, p);
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data->lastkey = estrdup(key);
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data->fd = open(buf, O_CREAT | O_RDWR, 0600);
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if(data->fd > -1) {
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flock(data->fd, LOCK_EX);
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}
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}
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}
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PS_READ_FUNC(files)
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{
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int n;
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struct stat sbuf;
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PS_FILES_DATA;
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_ps_files_open(data, key);
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if(data->fd < 0)
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return FAILURE;
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if(fstat(data->fd, &sbuf)) {
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return FAILURE;
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}
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lseek(data->fd, 0, SEEK_SET);
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*vallen = sbuf.st_size;
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*val = emalloc(sbuf.st_size);
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n = read(data->fd, *val, sbuf.st_size);
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if(n != sbuf.st_size) {
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efree(*val);
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return FAILURE;
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}
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return SUCCESS;
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}
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PS_WRITE_FUNC(files)
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{
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PS_FILES_DATA;
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_ps_files_open(data, key);
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if(data->fd < 0)
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return FAILURE;
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ftruncate(data->fd, 0);
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lseek(data->fd, 0, SEEK_SET);
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write(data->fd, val, vallen);
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return SUCCESS;
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}
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PS_DESTROY_FUNC(files)
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{
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char buf[MAXPATHLEN];
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PS_FILES_DATA;
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snprintf(buf, MAXPATHLEN, "%s/%s", data->basedir, key);
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unlink(buf);
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return SUCCESS;
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}
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PS_GC_FUNC(files)
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{
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return SUCCESS;
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}
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