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stream.c
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stream.c
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/*
+----------------------------------------------------------------------+
| phar:// stream wrapper support |
+----------------------------------------------------------------------+
| Copyright (c) 2005-2012 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Gregory Beaver <cellog@php.net> |
| Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
#define PHAR_STREAM 1
#include "phar_internal.h"
#include "stream.h"
#include "dirstream.h"
php_stream_ops phar_ops = {
phar_stream_write, /* write */
phar_stream_read, /* read */
phar_stream_close, /* close */
phar_stream_flush, /* flush */
"phar stream",
phar_stream_seek, /* seek */
NULL, /* cast */
phar_stream_stat, /* stat */
NULL, /* set option */
};
php_stream_wrapper_ops phar_stream_wops = {
phar_wrapper_open_url,
NULL, /* phar_wrapper_close */
NULL, /* phar_wrapper_stat, */
phar_wrapper_stat, /* stat_url */
phar_wrapper_open_dir, /* opendir */
"phar",
phar_wrapper_unlink, /* unlink */
phar_wrapper_rename, /* rename */
phar_wrapper_mkdir, /* create directory */
phar_wrapper_rmdir, /* remove directory */
};
php_stream_wrapper php_stream_phar_wrapper = {
&phar_stream_wops,
NULL,
0 /* is_url */
};
/**
* Open a phar file for streams API
*/
php_url* phar_parse_url(php_stream_wrapper *wrapper, char *filename, char *mode, int options TSRMLS_DC) /* {{{ */
{
php_url *resource;
char *arch = NULL, *entry = NULL, *error;
int arch_len, entry_len;
if (strlen(filename) < 7 || strncasecmp(filename, "phar://", 7)) {
return NULL;
}
if (mode[0] == 'a') {
if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: open mode append not supported");
}
return NULL;
}
if (phar_split_fname(filename, strlen(filename), &arch, &arch_len, &entry, &entry_len, 2, (mode[0] == 'w' ? 2 : 0) TSRMLS_CC) == FAILURE) {
if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
if (arch && !entry) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: no directory in \"%s\", must have at least phar://%s/ for root directory (always use full path to a new phar)", filename, arch);
arch = NULL;
} else {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: invalid url or non-existent phar \"%s\"", filename);
}
}
return NULL;
}
resource = ecalloc(1, sizeof(php_url));
resource->scheme = estrndup("phar", 4);
resource->host = arch;
resource->path = entry;
#if MBO_0
if (resource) {
fprintf(stderr, "Alias: %s\n", alias);
fprintf(stderr, "Scheme: %s\n", resource->scheme);
/* fprintf(stderr, "User: %s\n", resource->user);*/
/* fprintf(stderr, "Pass: %s\n", resource->pass ? "***" : NULL);*/
fprintf(stderr, "Host: %s\n", resource->host);
/* fprintf(stderr, "Port: %d\n", resource->port);*/
fprintf(stderr, "Path: %s\n", resource->path);
/* fprintf(stderr, "Query: %s\n", resource->query);*/
/* fprintf(stderr, "Fragment: %s\n", resource->fragment);*/
}
#endif
if (mode[0] == 'w' || (mode[0] == 'r' && mode[1] == '+')) {
phar_archive_data **pphar = NULL, *phar;
if (PHAR_GLOBALS->request_init && PHAR_GLOBALS->phar_fname_map.arBuckets && FAILURE == zend_hash_find(&(PHAR_GLOBALS->phar_fname_map), arch, arch_len, (void **)&pphar)) {
pphar = NULL;
}
if (PHAR_G(readonly) && (!pphar || !(*pphar)->is_data)) {
if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: write operations disabled by the php.ini setting phar.readonly");
}
php_url_free(resource);
return NULL;
}
if (phar_open_or_create_filename(resource->host, arch_len, NULL, 0, 0, options, &phar, &error TSRMLS_CC) == FAILURE)
{
if (error) {
if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
}
efree(error);
}
php_url_free(resource);
return NULL;
}
if (phar->is_persistent && FAILURE == phar_copy_on_write(&phar TSRMLS_CC)) {
if (error) {
spprintf(&error, 0, "Cannot open cached phar '%s' as writeable, copy on write failed", resource->host);
if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
}
efree(error);
}
php_url_free(resource);
return NULL;
}
} else {
if (phar_open_from_filename(resource->host, arch_len, NULL, 0, options, NULL, &error TSRMLS_CC) == FAILURE)
{
if (error) {
if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
}
efree(error);
}
php_url_free(resource);
return NULL;
}
}
return resource;
}
/* }}} */
/**
* used for fopen('phar://...') and company
*/
static php_stream * phar_wrapper_open_url(php_stream_wrapper *wrapper, char *path, char *mode, int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC) /* {{{ */
{
phar_archive_data *phar;
phar_entry_data *idata;
char *internal_file;
char *error;
HashTable *pharcontext;
php_url *resource = NULL;
php_stream *fpf;
zval **pzoption, *metadata;
uint host_len;
if ((resource = phar_parse_url(wrapper, path, mode, options TSRMLS_CC)) == NULL) {
return NULL;
}
/* we must have at the very least phar://alias.phar/internalfile.php */
if (!resource->scheme || !resource->host || !resource->path) {
php_url_free(resource);
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: invalid url \"%s\"", path);
return NULL;
}
if (strcasecmp("phar", resource->scheme)) {
php_url_free(resource);
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: not a phar stream url \"%s\"", path);
return NULL;
}
host_len = strlen(resource->host);
phar_request_initialize(TSRMLS_C);
/* strip leading "/" */
internal_file = estrdup(resource->path + 1);
if (mode[0] == 'w' || (mode[0] == 'r' && mode[1] == '+')) {
if (NULL == (idata = phar_get_or_create_entry_data(resource->host, host_len, internal_file, strlen(internal_file), mode, 0, &error, 1 TSRMLS_CC))) {
if (error) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
efree(error);
} else {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: file \"%s\" could not be created in phar \"%s\"", internal_file, resource->host);
}
efree(internal_file);
php_url_free(resource);
return NULL;
}
if (error) {
efree(error);
}
fpf = php_stream_alloc(&phar_ops, idata, NULL, mode);
php_url_free(resource);
efree(internal_file);
#if PHP_MAJOR_VERSION >= 6
if (context && context->options && phar_find_key(HASH_OF(context->options), "phar", sizeof("phar"), (void**)&pzoption TSRMLS_CC)) {
#else
if (context && context->options && zend_hash_find(HASH_OF(context->options), "phar", sizeof("phar"), (void**)&pzoption) == SUCCESS) {
#endif
pharcontext = HASH_OF(*pzoption);
if (idata->internal_file->uncompressed_filesize == 0
&& idata->internal_file->compressed_filesize == 0
#if PHP_MAJOR_VERSION >= 6
&& phar_find_key(pharcontext, "compress", sizeof("compress"), (void**)&pzoption TSRMLS_CC)
#else
&& zend_hash_find(pharcontext, "compress", sizeof("compress"), (void**)&pzoption) == SUCCESS
#endif
&& Z_TYPE_PP(pzoption) == IS_LONG
&& (Z_LVAL_PP(pzoption) & ~PHAR_ENT_COMPRESSION_MASK) == 0
) {
idata->internal_file->flags &= ~PHAR_ENT_COMPRESSION_MASK;
idata->internal_file->flags |= Z_LVAL_PP(pzoption);
}
#if PHP_MAJOR_VERSION >= 6
if (phar_find_key(pharcontext, "metadata", sizeof("metadata"), (void**)&pzoption TSRMLS_CC)) {
#else
if (zend_hash_find(pharcontext, "metadata", sizeof("metadata"), (void**)&pzoption) == SUCCESS) {
#endif
if (idata->internal_file->metadata) {
zval_ptr_dtor(&idata->internal_file->metadata);
idata->internal_file->metadata = NULL;
}
MAKE_STD_ZVAL(idata->internal_file->metadata);
metadata = *pzoption;
ZVAL_ZVAL(idata->internal_file->metadata, metadata, 1, 0);
idata->phar->is_modified = 1;
}
}
if (opened_path) {
spprintf(opened_path, MAXPATHLEN, "phar://%s/%s", idata->phar->fname, idata->internal_file->filename);
}
return fpf;
} else {
if (!*internal_file && (options & STREAM_OPEN_FOR_INCLUDE)) {
/* retrieve the stub */
if (FAILURE == phar_get_archive(&phar, resource->host, host_len, NULL, 0, NULL TSRMLS_CC)) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "file %s is not a valid phar archive", resource->host);
efree(internal_file);
php_url_free(resource);
return NULL;
}
if (phar->is_tar || phar->is_zip) {
if ((FAILURE == phar_get_entry_data(&idata, resource->host, host_len, ".phar/stub.php", sizeof(".phar/stub.php")-1, "r", 0, &error, 0 TSRMLS_CC)) || !idata) {
goto idata_error;
}
efree(internal_file);
if (opened_path) {
spprintf(opened_path, MAXPATHLEN, "%s", phar->fname);
}
php_url_free(resource);
goto phar_stub;
} else {
phar_entry_info *entry;
entry = (phar_entry_info *) ecalloc(1, sizeof(phar_entry_info));
entry->is_temp_dir = 1;
entry->filename = estrndup("", 0);
entry->filename_len = 0;
entry->phar = phar;
entry->offset = entry->offset_abs = 0;
entry->compressed_filesize = entry->uncompressed_filesize = phar->halt_offset;
entry->is_crc_checked = 1;
idata = (phar_entry_data *) ecalloc(1, sizeof(phar_entry_data));
idata->fp = phar_get_pharfp(phar TSRMLS_CC);
idata->phar = phar;
idata->internal_file = entry;
if (!phar->is_persistent) {
++(entry->phar->refcount);
}
++(entry->fp_refcount);
php_url_free(resource);
if (opened_path) {
spprintf(opened_path, MAXPATHLEN, "%s", phar->fname);
}
efree(internal_file);
goto phar_stub;
}
}
/* read-only access is allowed to magic files in .phar directory */
if ((FAILURE == phar_get_entry_data(&idata, resource->host, host_len, internal_file, strlen(internal_file), "r", 0, &error, 0 TSRMLS_CC)) || !idata) {
idata_error:
if (error) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
efree(error);
} else {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: \"%s\" is not a file in phar \"%s\"", internal_file, resource->host);
}
efree(internal_file);
php_url_free(resource);
return NULL;
}
}
php_url_free(resource);
#if MBO_0
fprintf(stderr, "Pharname: %s\n", idata->phar->filename);
fprintf(stderr, "Filename: %s\n", internal_file);
fprintf(stderr, "Entry: %s\n", idata->internal_file->filename);
fprintf(stderr, "Size: %u\n", idata->internal_file->uncompressed_filesize);
fprintf(stderr, "Compressed: %u\n", idata->internal_file->flags);
fprintf(stderr, "Offset: %u\n", idata->internal_file->offset_within_phar);
fprintf(stderr, "Cached: %s\n", idata->internal_file->filedata ? "yes" : "no");
#endif
/* check length, crc32 */
if (!idata->internal_file->is_crc_checked && phar_postprocess_file(idata, idata->internal_file->crc32, &error, 2 TSRMLS_CC) != SUCCESS) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
efree(error);
phar_entry_delref(idata TSRMLS_CC);
efree(internal_file);
return NULL;
}
if (!PHAR_G(cwd_init) && options & STREAM_OPEN_FOR_INCLUDE) {
char *entry = idata->internal_file->filename, *cwd;
PHAR_G(cwd_init) = 1;
if ((idata->phar->is_tar || idata->phar->is_zip) && idata->internal_file->filename_len == sizeof(".phar/stub.php")-1 && !strncmp(idata->internal_file->filename, ".phar/stub.php", sizeof(".phar/stub.php")-1)) {
/* we're executing the stub, which doesn't count as a file */
PHAR_G(cwd_init) = 0;
} else if ((cwd = strrchr(entry, '/'))) {
PHAR_G(cwd_len) = cwd - entry;
PHAR_G(cwd) = estrndup(entry, PHAR_G(cwd_len));
} else {
/* root directory */
PHAR_G(cwd_len) = 0;
PHAR_G(cwd) = NULL;
}
}
if (opened_path) {
spprintf(opened_path, MAXPATHLEN, "phar://%s/%s", idata->phar->fname, idata->internal_file->filename);
}
efree(internal_file);
phar_stub:
fpf = php_stream_alloc(&phar_ops, idata, NULL, mode);
return fpf;
}
/* }}} */
/**
* Used for fclose($fp) where $fp is a phar archive
*/
static int phar_stream_close(php_stream *stream, int close_handle TSRMLS_DC) /* {{{ */
{
phar_entry_delref((phar_entry_data *)stream->abstract TSRMLS_CC);
return 0;
}
/* }}} */
/**
* used for fread($fp) and company on a fopen()ed phar file handle
*/
static size_t phar_stream_read(php_stream *stream, char *buf, size_t count TSRMLS_DC) /* {{{ */
{
phar_entry_data *data = (phar_entry_data *)stream->abstract;
size_t got;
phar_entry_info *entry;
if (data->internal_file->link) {
entry = phar_get_link_source(data->internal_file TSRMLS_CC);
} else {
entry = data->internal_file;
}
if (entry->is_deleted) {
stream->eof = 1;
return 0;
}
/* use our proxy position */
php_stream_seek(data->fp, data->position + data->zero, SEEK_SET);
got = php_stream_read(data->fp, buf, MIN(count, entry->uncompressed_filesize - data->position));
data->position = php_stream_tell(data->fp) - data->zero;
stream->eof = (data->position == (off_t) entry->uncompressed_filesize);
return got;
}
/* }}} */
/**
* Used for fseek($fp) on a phar file handle
*/
static int phar_stream_seek(php_stream *stream, off_t offset, int whence, off_t *newoffset TSRMLS_DC) /* {{{ */
{
phar_entry_data *data = (phar_entry_data *)stream->abstract;
phar_entry_info *entry;
int res;
off_t temp;
if (data->internal_file->link) {
entry = phar_get_link_source(data->internal_file TSRMLS_CC);
} else {
entry = data->internal_file;
}
switch (whence) {
case SEEK_END :
temp = data->zero + entry->uncompressed_filesize + offset;
break;
case SEEK_CUR :
temp = data->zero + data->position + offset;
break;
case SEEK_SET :
temp = data->zero + offset;
break;
default:
temp = 0;
}
if (temp > data->zero + (off_t) entry->uncompressed_filesize) {
*newoffset = -1;
return -1;
}
if (temp < data->zero) {
*newoffset = -1;
return -1;
}
res = php_stream_seek(data->fp, temp, SEEK_SET);
*newoffset = php_stream_tell(data->fp) - data->zero;
data->position = *newoffset;
return res;
}
/* }}} */
/**
* Used for writing to a phar file
*/
static size_t phar_stream_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC) /* {{{ */
{
phar_entry_data *data = (phar_entry_data *) stream->abstract;
php_stream_seek(data->fp, data->position, SEEK_SET);
if (count != php_stream_write(data->fp, buf, count)) {
php_stream_wrapper_log_error(stream->wrapper, stream->flags TSRMLS_CC, "phar error: Could not write %d characters to \"%s\" in phar \"%s\"", (int) count, data->internal_file->filename, data->phar->fname);
return -1;
}
data->position = php_stream_tell(data->fp);
if (data->position > (off_t)data->internal_file->uncompressed_filesize) {
data->internal_file->uncompressed_filesize = data->position;
}
data->internal_file->compressed_filesize = data->internal_file->uncompressed_filesize;
data->internal_file->old_flags = data->internal_file->flags;
data->internal_file->is_modified = 1;
return count;
}
/* }}} */
/**
* Used to save work done on a writeable phar
*/
static int phar_stream_flush(php_stream *stream TSRMLS_DC) /* {{{ */
{
char *error;
int ret;
if (stream->mode[0] == 'w' || (stream->mode[0] == 'r' && stream->mode[1] == '+')) {
ret = phar_flush(((phar_entry_data *)stream->abstract)->phar, 0, 0, 0, &error TSRMLS_CC);
if (error) {
php_stream_wrapper_log_error(stream->wrapper, REPORT_ERRORS TSRMLS_CC, "%s", error);
efree(error);
}
return ret;
} else {
return EOF;
}
}
/* }}} */
/* {{{ phar_dostat */
/**
* stat an opened phar file handle stream, used by phar_stat()
*/
void phar_dostat(phar_archive_data *phar, phar_entry_info *data, php_stream_statbuf *ssb, zend_bool is_temp_dir TSRMLS_DC)
{
memset(ssb, 0, sizeof(php_stream_statbuf));
if (!is_temp_dir && !data->is_dir) {
ssb->sb.st_size = data->uncompressed_filesize;
ssb->sb.st_mode = data->flags & PHAR_ENT_PERM_MASK;
ssb->sb.st_mode |= S_IFREG; /* regular file */
/* timestamp is just the timestamp when this was added to the phar */
#ifdef NETWARE
ssb->sb.st_mtime.tv_sec = data->timestamp;
ssb->sb.st_atime.tv_sec = data->timestamp;
ssb->sb.st_ctime.tv_sec = data->timestamp;
#else
ssb->sb.st_mtime = data->timestamp;
ssb->sb.st_atime = data->timestamp;
ssb->sb.st_ctime = data->timestamp;
#endif
} else if (!is_temp_dir && data->is_dir) {
ssb->sb.st_size = 0;
ssb->sb.st_mode = data->flags & PHAR_ENT_PERM_MASK;
ssb->sb.st_mode |= S_IFDIR; /* regular directory */
/* timestamp is just the timestamp when this was added to the phar */
#ifdef NETWARE
ssb->sb.st_mtime.tv_sec = data->timestamp;
ssb->sb.st_atime.tv_sec = data->timestamp;
ssb->sb.st_ctime.tv_sec = data->timestamp;
#else
ssb->sb.st_mtime = data->timestamp;
ssb->sb.st_atime = data->timestamp;
ssb->sb.st_ctime = data->timestamp;
#endif
} else {
ssb->sb.st_size = 0;
ssb->sb.st_mode = 0777;
ssb->sb.st_mode |= S_IFDIR; /* regular directory */
#ifdef NETWARE
ssb->sb.st_mtime.tv_sec = phar->max_timestamp;
ssb->sb.st_atime.tv_sec = phar->max_timestamp;
ssb->sb.st_ctime.tv_sec = phar->max_timestamp;
#else
ssb->sb.st_mtime = phar->max_timestamp;
ssb->sb.st_atime = phar->max_timestamp;
ssb->sb.st_ctime = phar->max_timestamp;
#endif
}
if (!phar->is_writeable) {
ssb->sb.st_mode = (ssb->sb.st_mode & 0555) | (ssb->sb.st_mode & ~0777);
}
ssb->sb.st_nlink = 1;
ssb->sb.st_rdev = -1;
/* this is only for APC, so use /dev/null device - no chance of conflict there! */
ssb->sb.st_dev = 0xc;
/* generate unique inode number for alias/filename, so no phars will conflict */
if (!is_temp_dir) {
ssb->sb.st_ino = data->inode;
}
#ifndef PHP_WIN32
ssb->sb.st_blksize = -1;
ssb->sb.st_blocks = -1;
#endif
}
/* }}}*/
/**
* Stat an opened phar file handle
*/
static int phar_stream_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC) /* {{{ */
{
phar_entry_data *data = (phar_entry_data *)stream->abstract;
/* If ssb is NULL then someone is misbehaving */
if (!ssb) {
return -1;
}
phar_dostat(data->phar, data->internal_file, ssb, 0 TSRMLS_CC);
return 0;
}
/* }}} */
/**
* Stream wrapper stat implementation of stat()
*/
static int phar_wrapper_stat(php_stream_wrapper *wrapper, char *url, int flags,
php_stream_statbuf *ssb, php_stream_context *context TSRMLS_DC) /* {{{ */
{
php_url *resource = NULL;
char *internal_file, *error;
phar_archive_data *phar;
phar_entry_info *entry;
uint host_len;
int internal_file_len;
if ((resource = phar_parse_url(wrapper, url, "r", flags|PHP_STREAM_URL_STAT_QUIET TSRMLS_CC)) == NULL) {
return FAILURE;
}
/* we must have at the very least phar://alias.phar/internalfile.php */
if (!resource->scheme || !resource->host || !resource->path) {
php_url_free(resource);
return FAILURE;
}
if (strcasecmp("phar", resource->scheme)) {
php_url_free(resource);
return FAILURE;
}
host_len = strlen(resource->host);
phar_request_initialize(TSRMLS_C);
internal_file = resource->path + 1; /* strip leading "/" */
/* find the phar in our trusty global hash indexed by alias (host of phar://blah.phar/file.whatever) */
if (FAILURE == phar_get_archive(&phar, resource->host, host_len, NULL, 0, &error TSRMLS_CC)) {
php_url_free(resource);
if (error) {
efree(error);
}
return FAILURE;
}
if (error) {
efree(error);
}
if (*internal_file == '\0') {
/* root directory requested */
phar_dostat(phar, NULL, ssb, 1 TSRMLS_CC);
php_url_free(resource);
return SUCCESS;
}
if (!phar->manifest.arBuckets) {
php_url_free(resource);
return FAILURE;
}
internal_file_len = strlen(internal_file);
/* search through the manifest of files, and if we have an exact match, it's a file */
if (SUCCESS == zend_hash_find(&phar->manifest, internal_file, internal_file_len, (void**)&entry)) {
phar_dostat(phar, entry, ssb, 0 TSRMLS_CC);
php_url_free(resource);
return SUCCESS;
}
if (zend_hash_exists(&(phar->virtual_dirs), internal_file, internal_file_len)) {
phar_dostat(phar, NULL, ssb, 1 TSRMLS_CC);
php_url_free(resource);
return SUCCESS;
}
/* check for mounted directories */
if (phar->mounted_dirs.arBuckets && zend_hash_num_elements(&phar->mounted_dirs)) {
phar_zstr key;
char *str_key;
ulong unused;
uint keylen;
HashPosition pos;
zend_hash_internal_pointer_reset_ex(&phar->mounted_dirs, &pos);
while (FAILURE != zend_hash_has_more_elements_ex(&phar->mounted_dirs, &pos)) {
if (HASH_KEY_NON_EXISTANT == zend_hash_get_current_key_ex(&phar->mounted_dirs, &key, &keylen, &unused, 0, &pos)) {
break;
}
PHAR_STR(key, str_key);
if ((int)keylen >= internal_file_len || strncmp(str_key, internal_file, keylen)) {
zend_hash_move_forward_ex(&phar->mounted_dirs, &pos);
PHAR_STR_FREE(str_key);
continue;
} else {
char *test;
int test_len;
php_stream_statbuf ssbi;
if (SUCCESS != zend_hash_find(&phar->manifest, str_key, keylen, (void **) &entry)) {
PHAR_STR_FREE(str_key);
goto free_resource;
}
PHAR_STR_FREE(str_key);
if (!entry->tmp || !entry->is_mounted) {
goto free_resource;
}
test_len = spprintf(&test, MAXPATHLEN, "%s%s", entry->tmp, internal_file + keylen);
if (SUCCESS != php_stream_stat_path(test, &ssbi)) {
efree(test);
zend_hash_move_forward_ex(&phar->mounted_dirs, &pos);
continue;
}
/* mount the file/directory just in time */
if (SUCCESS != phar_mount_entry(phar, test, test_len, internal_file, internal_file_len TSRMLS_CC)) {
efree(test);
goto free_resource;
}
efree(test);
if (SUCCESS != zend_hash_find(&phar->manifest, internal_file, internal_file_len, (void**)&entry)) {
goto free_resource;
}
phar_dostat(phar, entry, ssb, 0 TSRMLS_CC);
php_url_free(resource);
return SUCCESS;
}
}
}
free_resource:
php_url_free(resource);
return FAILURE;
}
/* }}} */
/**
* Unlink a file within a phar archive
*/
static int phar_wrapper_unlink(php_stream_wrapper *wrapper, char *url, int options, php_stream_context *context TSRMLS_DC) /* {{{ */
{
php_url *resource;
char *internal_file, *error;
int internal_file_len;
phar_entry_data *idata;
phar_archive_data **pphar;
uint host_len;
if ((resource = phar_parse_url(wrapper, url, "rb", options TSRMLS_CC)) == NULL) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: unlink failed");
return 0;
}
/* we must have at the very least phar://alias.phar/internalfile.php */
if (!resource->scheme || !resource->host || !resource->path) {
php_url_free(resource);
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: invalid url \"%s\"", url);
return 0;
}
if (strcasecmp("phar", resource->scheme)) {
php_url_free(resource);
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: not a phar stream url \"%s\"", url);
return 0;
}
host_len = strlen(resource->host);
phar_request_initialize(TSRMLS_C);
if (FAILURE == zend_hash_find(&(PHAR_GLOBALS->phar_fname_map), resource->host, host_len, (void **) &pphar)) {
pphar = NULL;
}
if (PHAR_G(readonly) && (!pphar || !(*pphar)->is_data)) {
php_url_free(resource);
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: write operations disabled by the php.ini setting phar.readonly");
return 0;
}
/* need to copy to strip leading "/", will get touched again */
internal_file = estrdup(resource->path + 1);
internal_file_len = strlen(internal_file);
if (FAILURE == phar_get_entry_data(&idata, resource->host, host_len, internal_file, internal_file_len, "r", 0, &error, 1 TSRMLS_CC)) {
/* constraints of fp refcount were not met */
if (error) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "unlink of \"%s\" failed: %s", url, error);
efree(error);
} else {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "unlink of \"%s\" failed, file does not exist", url);
}
efree(internal_file);
php_url_free(resource);
return 0;
}
if (error) {
efree(error);
}
if (idata->internal_file->fp_refcount > 1) {
/* more than just our fp resource is open for this file */
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: \"%s\" in phar \"%s\", has open file pointers, cannot unlink", internal_file, resource->host);
efree(internal_file);
php_url_free(resource);
phar_entry_delref(idata TSRMLS_CC);
return 0;
}
php_url_free(resource);
efree(internal_file);
phar_entry_remove(idata, &error TSRMLS_CC);
if (error) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
efree(error);
}
return 1;
}
/* }}} */
static int phar_wrapper_rename(php_stream_wrapper *wrapper, char *url_from, char *url_to, int options, php_stream_context *context TSRMLS_DC) /* {{{ */
{
php_url *resource_from, *resource_to;
char *error;
phar_archive_data *phar, *pfrom, *pto;
phar_entry_info *entry;
uint host_len;
int is_dir = 0;
int is_modified = 0;
error = NULL;
if ((resource_from = phar_parse_url(wrapper, url_from, "wb", options|PHP_STREAM_URL_STAT_QUIET TSRMLS_CC)) == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": invalid or non-writable url \"%s\"", url_from, url_to, url_from);
return 0;
}
if (SUCCESS != phar_get_archive(&pfrom, resource_from->host, strlen(resource_from->host), NULL, 0, &error TSRMLS_CC)) {
pfrom = NULL;
if (error) {
efree(error);
}
}
if (PHAR_G(readonly) && (!pfrom || !pfrom->is_data)) {
php_url_free(resource_from);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: Write operations disabled by the php.ini setting phar.readonly");
return 0;
}
if ((resource_to = phar_parse_url(wrapper, url_to, "wb", options|PHP_STREAM_URL_STAT_QUIET TSRMLS_CC)) == NULL) {
php_url_free(resource_from);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": invalid or non-writable url \"%s\"", url_from, url_to, url_to);
return 0;
}
if (SUCCESS != phar_get_archive(&pto, resource_to->host, strlen(resource_to->host), NULL, 0, &error TSRMLS_CC)) {
if (error) {
efree(error);
}
pto = NULL;
}
if (PHAR_G(readonly) && (!pto || !pto->is_data)) {
php_url_free(resource_from);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: Write operations disabled by the php.ini setting phar.readonly");
return 0;
}
if (strcmp(resource_from->host, resource_to->host)) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\", not within the same phar archive", url_from, url_to);
return 0;
}
/* we must have at the very least phar://alias.phar/internalfile.php */
if (!resource_from->scheme || !resource_from->host || !resource_from->path) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": invalid url \"%s\"", url_from, url_to, url_from);
return 0;
}
if (!resource_to->scheme || !resource_to->host || !resource_to->path) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": invalid url \"%s\"", url_from, url_to, url_to);
return 0;
}
if (strcasecmp("phar", resource_from->scheme)) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": not a phar stream url \"%s\"", url_from, url_to, url_from);
return 0;
}
if (strcasecmp("phar", resource_to->scheme)) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": not a phar stream url \"%s\"", url_from, url_to, url_to);
return 0;
}
host_len = strlen(resource_from->host);
if (SUCCESS != phar_get_archive(&phar, resource_from->host, host_len, NULL, 0, &error TSRMLS_CC)) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": %s", url_from, url_to, error);
efree(error);
return 0;
}
if (phar->is_persistent && FAILURE == phar_copy_on_write(&phar TSRMLS_CC)) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": could not make cached phar writeable", url_from, url_to);
return 0;
}
if (SUCCESS == zend_hash_find(&(phar->manifest), resource_from->path+1, strlen(resource_from->path)-1, (void **)&entry)) {
phar_entry_info new, *source;
/* perform rename magic */
if (entry->is_deleted) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\" from extracted phar archive, source has been deleted", url_from, url_to);
return 0;
}
/* transfer all data over to the new entry */
memcpy((void *) &new, (void *) entry, sizeof(phar_entry_info));
/* mark the old one for deletion */
entry->is_deleted = 1;
entry->fp = NULL;
entry->metadata = 0;
entry->link = entry->tmp = NULL;
source = entry;
/* add to the manifest, and then store the pointer to the new guy in entry */
zend_hash_add(&(phar->manifest), resource_to->path+1, strlen(resource_to->path)-1, (void **)&new, sizeof(phar_entry_info), (void **) &entry);
entry->filename = estrdup(resource_to->path+1);
if (FAILURE == phar_copy_entry_fp(source, entry, &error TSRMLS_CC)) {
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": %s", url_from, url_to, error);
efree(error);
zend_hash_del(&(phar->manifest), entry->filename, strlen(entry->filename));
return 0;
}
is_modified = 1;
entry->is_modified = 1;
entry->filename_len = strlen(entry->filename);
is_dir = entry->is_dir;
} else {
is_dir = zend_hash_exists(&(phar->virtual_dirs), resource_from->path+1, strlen(resource_from->path)-1);
if (!is_dir) {
/* file does not exist */
php_url_free(resource_from);
php_url_free(resource_to);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\" from extracted phar archive, source does not exist", url_from, url_to);
return 0;
}
}
/* Rename directory. Update all nested paths */
if (is_dir) {
int key_type;
phar_zstr key, new_key;
char *str_key, *new_str_key;
uint key_len, new_key_len;
ulong unused;
uint from_len = strlen(resource_from->path+1);
uint to_len = strlen(resource_to->path+1);
for (zend_hash_internal_pointer_reset(&phar->manifest);
HASH_KEY_NON_EXISTANT != (key_type = zend_hash_get_current_key_ex(&phar->manifest, &key, &key_len, &unused, 0, NULL)) &&
SUCCESS == zend_hash_get_current_data(&phar->manifest, (void **) &entry);
zend_hash_move_forward(&phar->manifest)) {
PHAR_STR(key, str_key);
if (!entry->is_deleted &&
key_len > from_len &&
memcmp(str_key, resource_from->path+1, from_len) == 0 &&
IS_SLASH(str_key[from_len])) {
new_key_len = key_len + to_len - from_len;
new_str_key = emalloc(new_key_len+1);
memcpy(new_str_key, resource_to->path + 1, to_len);
memcpy(new_str_key + to_len, str_key + from_len, key_len - from_len);
new_str_key[new_key_len] = 0;
is_modified = 1;
entry->is_modified = 1;
efree(entry->filename);
entry->filename = new_str_key;
entry->filename_len = new_key_len;
PHAR_ZSTR(new_str_key, new_key);
#if PHP_VERSION_ID < 50300
zend_hash_update_current_key_ex(&phar->manifest, key_type, new_key, new_key_len, 0, NULL);
#else
zend_hash_update_current_key_ex(&phar->manifest, key_type, new_key, new_key_len, 0, HASH_UPDATE_KEY_ANYWAY, NULL);
#endif
}
PHAR_STR_FREE(str_key);
}
for (zend_hash_internal_pointer_reset(&phar->virtual_dirs);
HASH_KEY_NON_EXISTANT != (key_type = zend_hash_get_current_key_ex(&phar->virtual_dirs, &key, &key_len, &unused, 0, NULL));
zend_hash_move_forward(&phar->virtual_dirs)) {
PHAR_STR(key, str_key);
if (key_len >= from_len &&
memcmp(str_key, resource_from->path+1, from_len) == 0 &&
(key_len == from_len || IS_SLASH(str_key[from_len]))) {
new_key_len = key_len + to_len - from_len;
new_str_key = emalloc(new_key_len+1);
memcpy(new_str_key, resource_to->path + 1, to_len);
memcpy(new_str_key + to_len, str_key + from_len, key_len - from_len);
new_str_key[new_key_len] = 0;
PHAR_ZSTR(new_str_key, new_key);
#if PHP_VERSION_ID < 50300
zend_hash_update_current_key_ex(&phar->virtual_dirs, key_type, new_key, new_key_len, 0, NULL);
#else
zend_hash_update_current_key_ex(&phar->virtual_dirs, key_type, new_key, new_key_len, 0, HASH_UPDATE_KEY_ANYWAY, NULL);
#endif
efree(new_str_key);
}
PHAR_STR_FREE(str_key);
}
for (zend_hash_internal_pointer_reset(&phar->mounted_dirs);
HASH_KEY_NON_EXISTANT != (key_type = zend_hash_get_current_key_ex(&phar->mounted_dirs, &key, &key_len, &unused, 0, NULL)) &&
SUCCESS == zend_hash_get_current_data(&phar->mounted_dirs, (void **) &entry);
zend_hash_move_forward(&phar->mounted_dirs)) {
PHAR_STR(key, str_key);
if (key_len >= from_len &&
memcmp(str_key, resource_from->path+1, from_len) == 0 &&
(key_len == from_len || IS_SLASH(str_key[from_len]))) {
new_key_len = key_len + to_len - from_len;