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file_api.php
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file_api.php
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<?php
# MantisBT - A PHP based bugtracking system
# MantisBT is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# MantisBT is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with MantisBT. If not, see <http://www.gnu.org/licenses/>.
/**
* File API
*
* @package CoreAPI
* @subpackage FileAPI
* @copyright Copyright 2000 - 2002 Kenzaburo Ito - kenito@300baud.org
* @copyright Copyright 2002 MantisBT Team - mantisbt-dev@lists.sourceforge.net
* @link http://www.mantisbt.org
*
* @uses access_api.php
* @uses antispam_api.php
* @uses authentication_api.php
* @uses bug_api.php
* @uses config_api.php
* @uses constant_inc.php
* @uses database_api.php
* @uses gpc_api.php
* @uses helper_api.php
* @uses history_api.php
* @uses project_api.php
* @uses utility_api.php
*/
require_api( 'access_api.php' );
require_api( 'antispam_api.php' );
require_api( 'authentication_api.php' );
require_api( 'bug_api.php' );
require_api( 'config_api.php' );
require_api( 'constant_inc.php' );
require_api( 'database_api.php' );
require_api( 'gpc_api.php' );
require_api( 'helper_api.php' );
require_api( 'history_api.php' );
require_api( 'project_api.php' );
require_api( 'utility_api.php' );
use Mantis\Exceptions\ClientException;
use Mantis\Exceptions\ServiceException;
$g_cache_file_count = array();
/**
* Attached specified files to issue.
*
* @param int $p_bug_id The bug id.
* @param array $p_files The array of files, if null, then do nothing.
* @param int $p_bugnote_id The bugnote id, or 0 if issue attachments.
* @return array Array of file info arrays.
*/
function file_attach_files( $p_bug_id, $p_files, $p_bugnote_id = 0 ) {
if( $p_files === null || count( $p_files ) == 0 ) {
return array();
}
$t_file_infos = array();
foreach( $p_files as $t_file ) {
if( !empty( $t_file['name'] ) ) {
# $p_bug_id, array $p_file, $p_table = 'bug', $p_title = '', $p_desc = '', $p_user_id = null, $p_date_added = 0, $p_skip_bug_update = false, $p_bugnote_id = 0
$t_file_infos[] = file_add(
$p_bug_id,
$t_file,
'bug',
'', /* title */
'', /* desc */
null, /* user_id */
0, /* date_added */
0, /* skip_bug_update */
$p_bugnote_id );
}
}
return $t_file_infos;
}
/**
* Gets the filename without the bug id prefix.
* @param string $p_filename Filename.
* @return string
*/
function file_get_display_name( $p_filename ) {
# Check if it's a project document filename (doc-0000000-filename)
# or a bug attachment filename (0000000-filename)
# for newer filenames, the filename in schema is correct.
# This is important to handle filenames with '-'s properly
$t_doc_match = '/^' . config_get( 'document_files_prefix' ) . '-\d{7}-/';
$t_name = preg_split( $t_doc_match, $p_filename );
if( isset( $t_name[1] ) ) {
return $t_name[1];
} else {
$t_bug_match = '/^\d{7}-/';
$t_name = preg_split( $t_bug_match, $p_filename );
if( isset( $t_name[1] ) ) {
return $t_name[1];
} else {
return $p_filename;
}
}
}
/**
* Fills the cache with the attachment count from a list of bugs
* If the bug doesn't have attachments, cache its value as 0.
* @global array $g_cache_file_count
* @param array $p_bug_ids Array of bug ids
* @return void
*/
function file_bug_attachment_count_cache( array $p_bug_ids ) {
global $g_cache_file_count;
if( empty( $p_bug_ids ) ) {
return;
}
$t_ids_to_search = array();
foreach( $p_bug_ids as $t_id ) {
$c_id = (int)$t_id;
$t_ids_to_search[$c_id] = $c_id;
}
db_param_push();
$t_params = array();
$t_in_values = array();
foreach( $t_ids_to_search as $t_id ) {
$t_params[] = (int)$t_id;
$t_in_values[] = db_param();
}
$t_query = 'SELECT B.id AS bug_id, COUNT(F.bug_id) AS attachments'
. ' FROM {bug} B JOIN {bug_file} F ON ( B.id = F.bug_id )'
. ' WHERE B.id IN (' . implode( ',', $t_in_values ) . ')'
. ' GROUP BY B.id';
$t_result = db_query( $t_query, $t_params );
while( $t_row = db_fetch_array( $t_result ) ) {
$c_bug_id = (int)$t_row['bug_id'];
$g_cache_file_count[$c_bug_id] = (int)$t_row['attachments'];
unset( $t_ids_to_search[$c_bug_id] );
}
# set bugs without result to 0
foreach( $t_ids_to_search as $t_id ) {
$g_cache_file_count[$t_id] = 0;
}
}
/**
* Check the number of attachments a bug has (if any)
* @param integer $p_bug_id A bug identifier.
* @return integer
*/
function file_bug_attachment_count( $p_bug_id ) {
global $g_cache_file_count;
# If it's not in cache, load the value
if( !isset( $g_cache_file_count[$p_bug_id] ) ) {
file_bug_attachment_count_cache( array( (int)$p_bug_id ) );
}
return $g_cache_file_count[$p_bug_id];
}
/**
* Clear a bug from the cache or all bugs if no bug id specified.
* @param integer $p_bug_id A bug identifier to clear (optional).
* @return boolean
* @access public
*/
function file_bug_attachment_count_clear_cache( $p_bug_id = null ) {
global $g_cache_file_count;
if( null === $p_bug_id ) {
$g_cache_file_count = array();
} else {
unset( $g_cache_file_count[(int)$p_bug_id] );
}
return true;
}
/**
* Check if a specific bug has attachments
* @param integer $p_bug_id A bug identifier.
* @return boolean
*/
function file_bug_has_attachments( $p_bug_id ) {
if( file_bug_attachment_count( $p_bug_id ) > 0 ) {
return true;
} else {
return false;
}
}
/**
* Check if the current user can view or download attachments.
*
* Generic call used by
* - {@see file_can_view_bug_attachments()}
* - {@see file_can_view_bugnote_attachments}
* - {@see file_can_download_bug_attachments()}
* - {@see file_can_download_bugnote_attachments}
*
* @param string $p_action 'view' or 'download'
* @param int $p_bug_id A bug identifier
* @param int $p_uploader_user_id The user who uploaded the attachment
* @param int|null $p_bugnote_id If specified, will check at bugnote level
*
* @return bool
*
* @internal Should not be used outside of File API.
*/
function file_can_view_or_download( $p_action, $p_bug_id, $p_uploader_user_id, $p_bugnote_id = null ) {
switch( $p_action ) {
case 'view':
$t_threshold_global = 'view_attachments_threshold';
$t_threshold_own = 'allow_view_own_attachments';
break;
case 'download':
$t_threshold_global = 'download_attachments_threshold';
$t_threshold_own = 'allow_download_own_attachments';
break;
default:
trigger_error( ERROR_GENERIC, ERROR );
}
$t_project_id = bug_get_field( $p_bug_id, 'project_id' );
$t_access_global = config_get( $t_threshold_global,null, null, $t_project_id );
if( $p_bugnote_id === null ) {
$t_can_access = access_has_bug_level( $t_access_global, $p_bug_id );
} else {
$t_can_access = access_has_bugnote_level( $t_access_global, $p_bugnote_id );
}
if( $t_can_access ) {
return true;
}
$t_uploaded_by_me = auth_get_current_user_id() == $p_uploader_user_id;
$t_view_own = config_get( $t_threshold_own, null, null, $t_project_id );
return $t_uploaded_by_me && $t_view_own;
}
/**
* Check if the current user can view attachments for the specified bug.
*
* @param integer $p_bug_id A bug identifier.
* @param integer $p_uploader_user_id A user identifier.
*
* @return boolean
*/
function file_can_view_bug_attachments( $p_bug_id, $p_uploader_user_id = null ) {
return file_can_view_or_download( 'view', $p_bug_id, $p_uploader_user_id );
}
/**
* Check if the current user can view attachments for the specified bug note.
*
* @param integer $p_bugnote_id A bugnote identifier.
* @param integer $p_uploader_user_id The user who uploaded the attachment.
*
* @return boolean
*/
function file_can_view_bugnote_attachments( $p_bugnote_id, $p_uploader_user_id = null ) {
if( $p_bugnote_id == 0 ) {
return true;
}
$t_bug_id = bugnote_get_field( $p_bugnote_id, 'bug_id' );
return file_can_view_or_download( 'view', $t_bug_id, $p_uploader_user_id );
}
/**
* Check if the current user can download attachments for the specified bug.
*
* @param integer $p_bug_id A bug identifier.
* @param integer $p_uploader_user_id The user who uploaded the attachment.
*
* @return boolean
*/
function file_can_download_bug_attachments( $p_bug_id, $p_uploader_user_id = null ) {
return file_can_view_or_download( 'download', $p_bug_id, $p_uploader_user_id );
}
/**
* Check if the current user can download attachments for the specified bug note.
*
* @param integer $p_bugnote_id A bugnote identifier.
* @param integer $p_uploader_user_id The user who uploaded the attachment.
*
* @return boolean
*/
function file_can_download_bugnote_attachments( $p_bugnote_id, $p_uploader_user_id = null ) {
if( $p_bugnote_id == 0 ) {
return true;
}
$t_bug_id = bugnote_get_field( $p_bugnote_id, 'bug_id' );
return file_can_view_or_download( 'download', $t_bug_id, $p_uploader_user_id, $p_bugnote_id );
}
/**
* Check if the current user can delete attachments from the specified bug.
* @param integer $p_bug_id A bug identifier.
* @param integer $p_uploader_user_id A user identifier.
* @return boolean
*/
function file_can_delete_bug_attachments( $p_bug_id, $p_uploader_user_id = null ) {
if( bug_is_readonly( $p_bug_id ) ) {
return false;
}
$t_uploaded_by_me = auth_get_current_user_id() === $p_uploader_user_id;
$t_can_delete = access_has_bug_level( config_get( 'delete_attachments_threshold' ), $p_bug_id );
$t_can_delete = $t_can_delete || ( $t_uploaded_by_me && config_get( 'allow_delete_own_attachments' ) );
return $t_can_delete;
}
/**
* Get icon corresponding to the specified filename
* returns an associative array with "url" and "alt" text.
* @param string $p_display_filename Filename.
* @return array
*/
function file_get_icon_url( $p_display_filename ) {
$t_file_type_icons = config_get_global( 'file_type_icons' );
$t_ext = mb_strtolower( pathinfo( $p_display_filename, PATHINFO_EXTENSION ) );
if( is_blank( $t_ext ) || !isset( $t_file_type_icons[$t_ext] ) ) {
$t_ext = '?';
}
$t_name = $t_file_type_icons[$t_ext];
return array( 'url' => $t_name, 'alt' => $t_ext );
}
/**
* Combines a path and a file name making sure that the separator exists.
*
* @param string $p_path The path.
* @param string $p_filename The file name.
* @return string The combined full path.
*/
function file_path_combine( $p_path, $p_filename ) {
$t_path = rtrim( $p_path, '/\\' ) . DIRECTORY_SEPARATOR;
$t_path .= $p_filename;
return $t_path;
}
/**
* Normalizes the disk file path based on the following algorithm:
* 1. If disk file exists, then return as is.
* 2. If not, and a project path is available, then check with that, if exists return it.
* 3. If not, then use default upload path, then check with that, if exists return it.
* 4. If disk file does not include a path, then return expected path based on project path or default path.
* 5. Otherwise return as is.
*
* @param string $p_diskfile The disk file (full path or just filename).
* @param integer $p_project_id The project id - shouldn't be 0 (ALL_PROJECTS).
* @return string The normalized full path.
*/
function file_normalize_attachment_path( $p_diskfile, $p_project_id ) {
if( file_exists( $p_diskfile ) ) {
return $p_diskfile;
}
$t_basename = basename( $p_diskfile );
$t_expected_file_path = '';
if( $p_project_id != ALL_PROJECTS ) {
$t_path = project_get_field( $p_project_id, 'file_path' );
if( !is_blank( $t_path ) ) {
$t_diskfile = file_path_combine( $t_path, $t_basename );
if( file_exists( $t_diskfile ) ) {
return $t_diskfile;
}
# if we don't find the file, then this is the path we want to return.
$t_expected_file_path = $t_diskfile;
}
}
$t_path = config_get_global( 'absolute_path_default_upload_folder' );
if( !is_blank( $t_path ) ) {
$t_diskfile = file_path_combine( $t_path, $t_basename );
if( file_exists( $t_diskfile ) ) {
return $t_diskfile;
}
# if the expected path not set to project directory, then set it to default directory.
if( is_blank( $t_expected_file_path ) ) {
$t_expected_file_path = $t_diskfile;
}
}
# if diskfile doesn't include a path, then use the expected filename.
if( ( strstr( $p_diskfile, DIRECTORY_SEPARATOR ) === false ||
strstr( $p_diskfile, '\\' ) === false ) &&
!is_blank( $t_expected_file_path ) ) {
return $t_expected_file_path;
}
# otherwise return as is.
return $p_diskfile;
}
/**
* Gets an array of attachments that are visible to the currently logged in user.
* Each element of the array contains the following:
* display_name - The attachment display name (i.e. file name dot extension)
* size - The attachment size in bytes.
* date_added - The date where the attachment was added.
* can_download - true: logged in user has access to download the attachment, false: otherwise.
* diskfile - The name of the file on disk. Typically this is a hash without an extension.
* download_url - The download URL for the attachment (only set if can_download is true).
* exists - Applicable for DISK attachments. true: file exists, otherwise false.
* can_delete - The logged in user can delete the attachments.
* preview - true: the attachment should be previewable, otherwise false.
* type - Can be "image", "text" or empty for other types.
* alt - The alternate text to be associated with the icon.
* icon - array with icon information, contains 'url' and 'alt' elements.
* @param integer $p_bug_id A bug identifier.
* @return array
*/
function file_get_visible_attachments( $p_bug_id ) {
$t_attachment_rows = bug_get_attachments( $p_bug_id );
$t_visible_attachments = array();
$t_attachments_count = count( $t_attachment_rows );
if( $t_attachments_count === 0 ) {
return $t_visible_attachments;
}
$t_attachments = array();
$t_preview_text_ext = config_get( 'preview_text_extensions' );
$t_preview_image_ext = config_get( 'preview_image_extensions' );
$t_image_previewed = false;
foreach( $t_attachment_rows as $t_row ) {
$t_user_id = (int)$t_row['user_id'];
$t_attachment_note_id = (int)$t_row['bugnote_id'];
if( !file_can_view_bug_attachments( $p_bug_id, $t_user_id )
|| !file_can_view_bugnote_attachments( $t_attachment_note_id, $t_user_id )
) {
continue;
}
$t_id = (int)$t_row['id'];
$t_filename = $t_row['filename'];
$t_filesize = (int)$t_row['filesize'];
$t_diskfile = file_normalize_attachment_path( $t_row['diskfile'], bug_get_field( $p_bug_id, 'project_id' ) );
$t_date_added = $t_row['date_added'];
$t_attachment = array();
$t_attachment['id'] = $t_id;
$t_attachment['user_id'] = $t_user_id;
$t_attachment['display_name'] = file_get_display_name( $t_filename );
$t_attachment['size'] = $t_filesize;
$t_attachment['date_added'] = $t_date_added;
$t_attachment['diskfile'] = $t_diskfile;
$t_attachment['file_type'] = $t_row['file_type'];
$t_attachment['bugnote_id'] = $t_attachment_note_id;
$t_attachment['can_download'] = file_can_download_bug_attachments( $p_bug_id, $t_user_id );
$t_attachment['can_delete'] = file_can_delete_bug_attachments( $p_bug_id, $t_user_id );
if( $t_attachment['can_download'] ) {
$t_attachment['download_url'] = 'file_download.php?file_id=' . $t_id . '&type=bug';
}
if( $t_image_previewed ) {
$t_image_previewed = false;
}
$t_attachment['exists'] = config_get( 'file_upload_method' ) != DISK || file_exists( $t_diskfile );
$t_attachment['icon'] = file_get_icon_url( $t_attachment['display_name'] );
$t_attachment['preview'] = false;
$t_attachment['type'] = '';
$t_ext = strtolower( pathinfo( $t_attachment['display_name'], PATHINFO_EXTENSION ) );
$t_attachment['alt'] = $t_ext;
if( $t_attachment['exists'] && $t_attachment['can_download'] && $t_filesize != 0 ) {
$t_preview = $t_filesize <= config_get( 'preview_attachments_inline_max_size' );
if( stripos( $t_attachment['file_type'], 'text/' ) === 0 || in_array( $t_ext, $t_preview_text_ext, true ) ) {
$t_attachment['preview'] = $t_preview;
$t_attachment['type'] = 'text';
} else if( stripos( $t_attachment['file_type'], 'image/' ) === 0 || in_array( $t_ext, $t_preview_image_ext, true ) ) {
$t_attachment['preview'] = $t_preview;
$t_attachment['type'] = 'image';
} else if( stripos( $t_attachment['file_type'], 'audio/' ) === 0 ) {
$t_attachment['preview'] = $t_preview;
$t_attachment['type'] = 'audio';
} else if( stripos( $t_attachment['file_type'], 'video/' ) === 0 ) {
$t_attachment['preview'] = $t_preview;
$t_attachment['type'] = 'video';
}
}
$t_attachments[] = $t_attachment;
}
return $t_attachments;
}
/**
* delete all files that are associated with the given bug
* @param integer $p_bug_id A bug identifier.
* @return boolean
*/
function file_delete_attachments( $p_bug_id ) {
$t_method = config_get( 'file_upload_method' );
# Delete files from disk
db_param_push();
$t_query = 'SELECT diskfile, filename FROM {bug_file} WHERE bug_id=' . db_param();
$t_result = db_query( $t_query, array( $p_bug_id ) );
$t_file_count = db_num_rows( $t_result );
if( 0 == $t_file_count ) {
return true;
}
if( DISK == $t_method ) {
for( $i = 0; $i < $t_file_count; $i++ ) {
$t_row = db_fetch_array( $t_result );
$t_local_diskfile = file_normalize_attachment_path( $t_row['diskfile'], bug_get_field( $p_bug_id, 'project_id' ) );
file_delete_local( $t_local_diskfile );
}
}
# Delete the corresponding db records
db_param_push();
$t_query = 'DELETE FROM {bug_file} WHERE bug_id=' . db_param();
db_query( $t_query, array( $p_bug_id ) );
# db_query() errors on failure so:
return true;
}
/**
* Delete all files that are associated with the given bug note.
* @param integer $p_bug_id A bug identifier.
* @param integer $p_bugnote_id A bugnote identifier.
* @return boolean
*/
function file_delete_bugnote_attachments( $p_bug_id, $p_bugnote_id ) {
db_param_push();
$t_query = 'SELECT id, diskfile, filename FROM {bug_file} WHERE bug_id=' . db_param() . ' AND bugnote_id=' . db_param();
$t_result = db_query( $t_query, array( $p_bug_id, $p_bugnote_id ) );
while( $t_row = db_fetch_array( $t_result ) ) {
file_delete( (int)$t_row['id'], 'bug', $p_bugnote_id );
}
# db_query() errors on failure so:
return true;
}
/**
* Link the specified file to the specified bugnote.
*
* @param integer $p_file_id The file id.
* @param integer $p_bugnote_id A bugnote identifier.
* @return void
*/
function file_link_to_bugnote( $p_file_id, $p_bugnote_id ) {
db_param_push();
$t_query = 'UPDATE {bug_file} SET bugnote_id=' . db_param() . ' WHERE id=' . db_param();
db_query( $t_query, array( $p_bugnote_id, $p_file_id ) );
}
/**
* Delete files by project
* @param integer $p_project_id A project identifier.
* @return void
*/
function file_delete_project_files( $p_project_id ) {
$t_method = config_get( 'file_upload_method' );
# Delete the file physically (if stored via DISK)
if( DISK == $t_method ) {
# Delete files from disk
db_param_push();
$t_query = 'SELECT diskfile, filename FROM {project_file} WHERE project_id=' . db_param();
$t_result = db_query( $t_query, array( (int)$p_project_id ) );
$t_file_count = db_num_rows( $t_result );
for( $i = 0;$i < $t_file_count;$i++ ) {
$t_row = db_fetch_array( $t_result );
$t_local_diskfile = file_normalize_attachment_path( $t_row['diskfile'], $p_project_id );
file_delete_local( $t_local_diskfile );
}
}
# Delete the corresponding database records
db_param_push();
$t_query = 'DELETE FROM {project_file} WHERE project_id=' . db_param();
db_query( $t_query, array( (int)$p_project_id ) );
}
/**
* Delete a local file even if it is read-only.
* @param string $p_filename File name.
* @return void
*/
function file_delete_local( $p_filename ) {
if( file_exists( $p_filename ) ) {
chmod( $p_filename, 0775 );
unlink( $p_filename );
}
}
/**
* Return the specified field value
* @param integer $p_file_id File identifier.
* @param string $p_field_name Database field name to retrieve.
* @param string $p_table Database table name.
* @return string
*/
function file_get_field( $p_file_id, $p_field_name, $p_table = 'bug' ) {
$t_bug_file_table = db_get_table( $p_table . '_file' );
if( !db_field_exists( $p_field_name, $t_bug_file_table ) ) {
trigger_error( ERROR_DB_FIELD_NOT_FOUND, ERROR );
}
db_param_push();
$t_query = 'SELECT ' . $p_field_name . ' FROM ' . $t_bug_file_table . ' WHERE id=' . db_param();
$t_result = db_query( $t_query, array( (int)$p_file_id ), 1 );
return db_result( $t_result );
}
/**
* Delete File
* @param integer $p_file_id File identifier.
* @param string $p_table Table identifier.
* @param integer $p_bugnote_id The bugnote id the file is attached to or 0 if attached to issue.
* @return boolean
*/
function file_delete( $p_file_id, $p_table = 'bug', $p_bugnote_id = 0 ) {
$t_upload_method = config_get( 'file_upload_method' );
$c_file_id = (int)$p_file_id;
$t_filename = file_get_field( $p_file_id, 'filename', $p_table );
$t_diskfile = file_get_field( $p_file_id, 'diskfile', $p_table );
if( $p_table == 'bug' ) {
$t_bug_id = file_get_field( $p_file_id, 'bug_id', $p_table );
$t_project_id = bug_get_field( $t_bug_id, 'project_id' );
} else {
$t_project_id = file_get_field( $p_file_id, 'project_id', $p_table );
}
if( DISK == $t_upload_method ) {
$t_local_disk_file = file_normalize_attachment_path( $t_diskfile, $t_project_id );
if( file_exists( $t_local_disk_file ) ) {
file_delete_local( $t_local_disk_file );
}
}
if( 'bug' == $p_table ) {
# log file deletion
history_log_event_special( $t_bug_id, FILE_DELETED, file_get_display_name( $t_filename ), $p_bugnote_id );
}
$t_file_table = db_get_table( $p_table . '_file' );
db_param_push();
$t_query = 'DELETE FROM ' . $t_file_table . ' WHERE id=' . db_param();
db_query( $t_query, array( $c_file_id ) );
return true;
}
/**
* File type check
* @param string $p_file_name File name.
* @return boolean
*/
function file_type_check( $p_file_name ) {
$t_allowed_files = config_get( 'allowed_files' );
$t_disallowed_files = config_get( 'disallowed_files' );
# grab extension
$t_extension = pathinfo( $p_file_name, PATHINFO_EXTENSION );
# check against disallowed files
if( !is_blank( $t_disallowed_files ) ) {
$t_disallowed_arr = explode( ',', $t_disallowed_files );
foreach( $t_disallowed_arr as $t_val ) {
if( 0 == strcasecmp( $t_val, $t_extension ) ) {
return false;
}
}
}
# if the allowed list is note populated then the file must be allowed
if( is_blank( $t_allowed_files ) ) {
return true;
}
# check against allowed files
$t_allowed_arr = explode( ',', $t_allowed_files );
foreach( $t_allowed_arr as $t_val ) {
if( 0 == strcasecmp( $t_val, $t_extension ) ) {
return true;
}
}
return false;
}
/**
* clean file name by removing sensitive characters and replacing them with underscores
* @param string $p_filename File name.
* @return string
*/
function file_clean_name( $p_filename ) {
return preg_replace( '/[\/*?"<>|\\ :&]/', '_', $p_filename );
}
/**
* Generate a UNIQUE string for a given file path to use as the identifier for the file
* The string returned should be 32 characters in length
* @param string $p_filepath File path.
* @return string
*/
function file_generate_unique_name( $p_filepath ) {
do {
$t_string = md5( crypto_generate_random_string( 32, false ) );
} while( !diskfile_is_name_unique( $t_string, $p_filepath ) );
return $t_string;
}
/**
* Validates that the given disk file name identifier is unique, checking both
* in the DB tables (bug and project) and on disk.
* This ensures that in case a file has been deleted from disk but its record
* remains in the DB, we never get in a situation where the DB points to a file
* which is not the originally uploaded one.
* @param string $p_name File name.
* @param string $p_filepath File path.
* @return boolean true if unique
*/
function diskfile_is_name_unique( $p_name, $p_filepath ) {
$c_name = $p_filepath . $p_name;
db_param_push();
$t_query = 'SELECT count(*)
FROM (
SELECT diskfile FROM {bug_file} WHERE diskfile=' . db_param() . '
UNION
SELECT diskfile FROM {project_file} WHERE diskfile=' . db_param() . '
) f';
$t_result = db_query( $t_query, array( $c_name, $c_name) );
$t_count = db_result( $t_result );
return ( $t_count == 0 ) && !file_exists( $c_name );
}
/**
* Validates that the given file name is unique in the given context (we don't
* allow multiple attachments with the same name for a given bug or project)
* @param string $p_name File name.
* @param integer $p_bug_id A bug identifier (not used for project files).
* @param string $p_table Optional file table to check: 'project' or 'bug' (default).
* @return boolean true if unique
*/
function file_is_name_unique( $p_name, $p_bug_id, $p_table = 'bug' ) {
$t_file_table = db_get_table( "${p_table}_file" );
db_param_push();
$t_query = 'SELECT COUNT(*) FROM ' . $t_file_table . ' WHERE filename=' . db_param();
$t_param = array( $p_name );
if( $p_table == 'bug' ) {
$t_query .= ' AND bug_id=' . db_param();
$t_param[] = $p_bug_id;
}
$t_result = db_query( $t_query, $t_param );
$t_count = db_result( $t_result );
return ( $t_count == 0 );
}
/**
* Add a file to the system using the configured storage method
*
* If file was not uploaded by the browser standard POST method, set value
* for key `browser_upload` on $p_file to false. Otherwise, the file_add()
* operation will fail.
*
* @param integer $p_bug_id The bug id (should be 0 when adding project doc).
* @param array $p_file The uploaded file info, as retrieved from gpc_get_file().
* @param string $p_table Either 'bug' or 'project' depending on attachment type.
* @param string $p_title File title.
* @param string $p_desc File description.
* @param integer $p_user_id User id (defaults to current user).
* @param integer $p_date_added Date added.
* @param boolean $p_skip_bug_update Skip bug last modification update (useful when importing bug attachments).
* @param int $p_bugnote_id The bugnote id or 0 if associated with the issue.
* @return array The file info array (keys: name, size)
*/
function file_add( $p_bug_id, array $p_file, $p_table = 'bug', $p_title = '', $p_desc = '', $p_user_id = null, $p_date_added = 0, $p_skip_bug_update = false, $p_bugnote_id = 0 ) {
$t_file_info = array();
if( !isset( $p_file['error'] ) ) {
$p_file['error'] = UPLOAD_ERR_OK;
}
if( !isset( $p_file['browser_upload'] ) ) {
$p_file['browser_upload'] = true;
}
$t_tmp_file = $p_file['tmp_name'];
# Override passed value with one detected by PHP (if available).
# If PHP can't detect it, then use supplied value.
# If no value supplied, then default to a reasonable value.
# The value will be overridden by PHP anyway if content type is
# known at rendering time.
$t_type = file_get_mime_type( $t_tmp_file );
if( $t_type !== false ) {
$p_file['type'] = $t_type;
} else if( !isset( $p_file['type'] ) ) {
$p_file['type'] = 'application/octet-stream';
}
file_ensure_uploaded( $p_file );
$t_file_name = $p_file['name'];
if( !file_type_check( $t_file_name ) ) {
throw new ClientException(
sprintf( "File '%s' type not allowed", $t_file_name ),
ERROR_FILE_NOT_ALLOWED
);
}
$t_org_filename = $t_file_name;
$t_suffix_id = 1;
while( !file_is_name_unique( $t_file_name, $p_bug_id ) ) {
$t_suffix_id++;
$t_dot_index = strripos( $t_org_filename, '.' );
if( $t_dot_index === false ) {
$t_file_name = $t_org_filename . '-' . $t_suffix_id;
} else {
$t_extension = substr( $t_org_filename, $t_dot_index, strlen( $t_org_filename ) - $t_dot_index );
$t_file_name = substr( $t_org_filename, 0, $t_dot_index ) . '-' . $t_suffix_id . $t_extension;
}
}
$t_file_info['name'] = $t_file_name;
antispam_check();
$t_file_size = filesize( $t_tmp_file );
if( 0 == $t_file_size ) {
throw new ClientException(
sprintf( "File '%s' not uploaded", $t_file_name ),
ERROR_FILE_NO_UPLOAD_FAILURE );
}
$t_file_info['size'] = $t_file_size;
$t_max_file_size = (int)min( ini_get_number( 'upload_max_filesize' ), ini_get_number( 'post_max_size' ), config_get( 'max_file_size' ) );
if( $t_file_size > $t_max_file_size ) {
throw new ClientException(
sprintf( "File '%s' too big", $t_file_name ),
ERROR_FILE_TOO_BIG );
}
if( 'bug' == $p_table ) {
$t_project_id = bug_get_field( $p_bug_id, 'project_id' );
$t_id = (int)$p_bug_id;
} else {
$t_project_id = helper_get_current_project();
$t_id = $t_project_id;
}
if( $p_user_id === null ) {
$p_user_id = auth_get_current_user_id();
}
if( $p_date_added <= 0 ) {
$p_date_added = db_now();
}
if( $t_project_id == ALL_PROJECTS ) {
$t_file_path = config_get_global( 'absolute_path_default_upload_folder' );
} else {
$t_file_path = project_get_field( $t_project_id, 'file_path' );
if( is_blank( $t_file_path ) ) {
$t_file_path = config_get_global( 'absolute_path_default_upload_folder' );
}
}
$t_unique_name = file_generate_unique_name( $t_file_path );
$t_method = config_get( 'file_upload_method' );
switch( $t_method ) {
case DISK:
file_ensure_valid_upload_path( $t_file_path );
$t_disk_file_name = $t_file_path . $t_unique_name;
if( !file_exists( $t_disk_file_name ) ) {
if( $p_file['browser_upload'] ) {
if( !move_uploaded_file( $t_tmp_file, $t_disk_file_name ) ) {
throw new ServiceException(
'Unable to move uploaded file',
ERROR_FILE_MOVE_FAILED
);
}
} else {
if( !copy( $t_tmp_file, $t_disk_file_name ) || !unlink( $t_tmp_file ) ) {
throw new ServiceException(
'Unable to move uploaded file',
ERROR_FILE_MOVE_FAILED
);
}
}
chmod( $t_disk_file_name, config_get( 'attachments_file_permissions' ) );
$c_content = '';
} else {
throw new ClientException( 'Duplicate file', ERROR_FILE_DUPLICATE );
}
break;
case DATABASE:
$c_content = db_prepare_binary_string( fread( fopen( $t_tmp_file, 'rb' ), $t_file_size ) );
$t_file_path = '';
break;
default:
throw new ServiceException( 'Unknown file upload method', ERROR_GENERIC );
}
$t_file_table = db_get_table( $p_table . '_file' );
$t_id_col = $p_table . '_id';
db_param_push();
$t_param = array(
$t_id_col => $t_id,
'title' => $p_title,
'description' => $p_desc,
'diskfile' => $t_unique_name,
'filename' => $t_file_name,
'folder' => $t_file_path,
'filesize' => $t_file_size,
'file_type' => $p_file['type'],
'date_added' => $p_date_added,
'user_id' => (int)$p_user_id
);
if( 'bug' == $p_table ) {
$t_param['bugnote_id'] = is_null( $p_bugnote_id ) ? null : (int)$p_bugnote_id;
}
# Oracle has to update BLOBs separately
if( !db_is_oracle() ) {
$t_param['content'] = $c_content;
}
$t_query_param = db_param();
for( $i = 1; $i < count( $t_param ); $i++ ) {
$t_query_param .= ', ' . db_param();
}
$t_query = 'INSERT INTO ' . $t_file_table . '
( ' . implode( ', ', array_keys( $t_param ) ) . ' )
VALUES
( ' . $t_query_param . ' )';
db_query( $t_query, array_values( $t_param ) );
$t_file_info['id'] = db_insert_id( $t_file_table );
if( db_is_oracle() ) {