/
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 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( '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' );
$g_cache_file_count = array();
/**
* 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;
}
}
}
/**
* 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;
# First check if we have a cache hit
if( isset( $g_cache_file_count[$p_bug_id] ) ) {
return $g_cache_file_count[$p_bug_id];
}
# If there is no cache hit, check if there is anything in
# the cache. If the cache isn't empty and we didn't have
# a hit, then there are not attachments for this bug.
if( count( $g_cache_file_count ) > 0 ) {
return 0;
}
# Otherwise build the cache and return the attachment count
# for the given bug (if any).
$t_query = 'SELECT bug_id, COUNT(bug_id) AS attachments FROM {bug_file} GROUP BY bug_id';
$t_result = db_query( $t_query );
$t_file_count = 0;
while( $t_row = db_fetch_array( $t_result ) ) {
$g_cache_file_count[$t_row['bug_id']] = $t_row['attachments'];
if( $p_bug_id == $t_row['bug_id'] ) {
$t_file_count = $t_row['attachments'];
}
}
# If no attachments are present, mark the cache to avoid
# repeated queries for this.
if( count( $g_cache_file_count ) == 0 ) {
$g_cache_file_count['_no_files_'] = -1;
}
return $t_file_count;
}
/**
* 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 attachments for the specified bug.
* @param integer $p_bug_id A bug identifier.
* @param integer $p_uploader_user_id An user identifier.
* @return boolean
*/
function file_can_view_bug_attachments( $p_bug_id, $p_uploader_user_id = null ) {
$t_uploaded_by_me = auth_get_current_user_id() === $p_uploader_user_id;
$t_can_view = access_has_bug_level( config_get( 'view_attachments_threshold' ), $p_bug_id );
$t_can_view = $t_can_view || ( $t_uploaded_by_me && config_get( 'allow_view_own_attachments' ) );
return $t_can_view;
}
/**
* 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 An user identifier.
* @return boolean
*/
function file_can_download_bug_attachments( $p_bug_id, $p_uploader_user_id = null ) {
$t_uploaded_by_me = auth_get_current_user_id() === $p_uploader_user_id;
$t_can_download = access_has_bug_level( config_get( 'download_attachments_threshold', null, null, bug_get_field( $p_bug_id, 'project_id' ) ), $p_bug_id );
$t_can_download = $t_can_download || ( $t_uploaded_by_me && config_get( 'allow_download_own_attachments', null, null, bug_get_field( $p_bug_id, 'project_id' ) ) );
return $t_can_download;
}
/**
* 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 An 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( 'file_type_icons' );
$t_ext = utf8_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' => config_get( 'icon_path' ) . 'fileicons/' . $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( '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;
for( $i = 0;$i < $t_attachments_count;$i++ ) {
$t_row = $t_attachment_rows[$i];
if( !file_can_view_bug_attachments( $p_bug_id, (int)$t_row['user_id'] ) ) {
continue;
}
$t_id = $t_row['id'];
$t_filename = $t_row['filename'];
$t_filesize = $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['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['can_download'] = file_can_download_bug_attachments( $p_bug_id, (int)$t_row['user_id'] );
$t_attachment['can_delete'] = file_can_delete_bug_attachments( $p_bug_id, (int)$t_row['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_filesize <= config_get( 'preview_attachments_inline_max_size' ) ) {
if( in_array( $t_ext, $t_preview_text_ext, true ) ) {
$t_attachment['preview'] = true;
$t_attachment['type'] = 'text';
} else if( in_array( $t_ext, $t_preview_image_ext, true ) ) {
$t_attachment['preview'] = true;
$t_attachment['type'] = 'image';
}
}
$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
$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
$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 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
$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
$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 );
}
$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.
* @return boolean
*/
function file_delete( $p_file_id, $p_table = 'bug' ) {
$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 ) );
}
$t_file_table = db_get_table( $p_table . '_file' );
$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;
$t_query = 'SELECT count(*)
FROM (
SELECT diskfile FROM {bug_file}
UNION
SELECT diskfile FROM {project_file}
) f
WHERE diskfile=' . db_param();
$t_result = db_query( $t_query, array( $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" );
$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
*
* @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).
* @return void
*/
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 ) {
file_ensure_uploaded( $p_file );
$t_file_name = $p_file['name'];
$t_tmp_file = $p_file['tmp_name'];
if( !file_type_check( $t_file_name ) ) {
trigger_error( ERROR_FILE_NOT_ALLOWED, ERROR );
}
if( !file_is_name_unique( $t_file_name, $p_bug_id ) ) {
trigger_error( ERROR_FILE_DUPLICATE, ERROR );
}
$t_file_size = filesize( $t_tmp_file );
if( 0 == $t_file_size ) {
trigger_error( ERROR_FILE_NO_UPLOAD_FAILURE, ERROR );
}
$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 ) {
trigger_error( ERROR_FILE_TOO_BIG, ERROR );
}
if( 'bug' == $p_table ) {
$t_project_id = bug_get_field( $p_bug_id, 'project_id' );
$t_id = (int)$p_bug_id;
$t_bug_id = bug_format_id( $p_bug_id );
} else {
$t_project_id = helper_get_current_project();
$t_id = $t_project_id;
$t_bug_id = 0;
}
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( '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( '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( !move_uploaded_file( $t_tmp_file, $t_disk_file_name ) ) {
trigger_error( ERROR_FILE_MOVE_FAILED, ERROR );
}
chmod( $t_disk_file_name, config_get( 'attachments_file_permissions' ) );
$c_content = '';
} else {
trigger_error( ERROR_FILE_DUPLICATE, ERROR );
}
break;
case DATABASE:
$c_content = db_prepare_binary_string( fread( fopen( $t_tmp_file, 'rb' ), $t_file_size ) );
$t_file_path = '';
break;
default:
trigger_error( ERROR_GENERIC, ERROR );
}
$t_file_table = db_get_table( $p_table . '_file' );
$t_id_col = $p_table . '_id';
$t_query = 'INSERT INTO ' . $t_file_table . ' ( ' . $t_id_col . ', title, description, diskfile, filename, folder,
filesize, file_type, date_added, user_id )
VALUES
( ' . db_param() . ', ' . db_param() . ', ' . db_param() . ', ' . db_param() . ', ' . db_param() . ', ' . db_param() .
', ' . db_param() . ', ' . db_param() . ', ' . db_param() . ', ' . db_param() . ' )';
db_query( $t_query, array( $t_id, $p_title, $p_desc, $t_unique_name, $t_file_name, $t_file_path,
$t_file_size, $p_file['type'], $p_date_added, (int)$p_user_id ) );
$t_attachment_id = db_insert_id( $t_file_table );
if( db_is_oracle() ) {
db_update_blob( $t_file_table, 'content', $c_content, 'diskfile=\'$t_unique_name\'' );
} else {
$t_query = 'UPDATE ' . $t_file_table . ' SET content=' . db_param() . ' WHERE id = ' . db_param();
db_query( $t_query, array( $c_content, $t_attachment_id ) );
}
if( 'bug' == $p_table ) {
# update the last_updated date
if( !$p_skip_bug_update ) {
bug_update_date( $p_bug_id );
}
# log file added to bug history
history_log_event_special( $p_bug_id, FILE_ADDED, $t_file_name );
}
}
/**
* Return true if file uploading is enabled (in our config and PHP's), false otherwise
* @return boolean
*/
function file_is_uploading_enabled() {
if( ini_get_bool( 'file_uploads' ) && ( ON == config_get( 'allow_file_upload' ) ) ) {
return true;
} else {
return false;
}
}
/**
* Check if the user can upload files for this project
* return true if they can, false otherwise
* the project defaults to the current project and the user to the current user
* @param integer $p_project_id A project identifier.
* @param integer $p_user_id A user identifier.
* @return boolean
*/
function file_allow_project_upload( $p_project_id = null, $p_user_id = null ) {
if( null === $p_project_id ) {
$p_project_id = helper_get_current_project();
}
if( null === $p_user_id ) {
$p_user_id = auth_get_current_user_id();
}
return( file_is_uploading_enabled() && ( access_has_project_level( config_get( 'upload_project_file_threshold' ), $p_project_id, $p_user_id ) ) );
}
/**
* Check if the user can upload files for this bug
* return true if they can, false otherwise
* the user defaults to the current user
*
* if the bug null (the default) we answer whether the user can
* upload a file to a new bug in the current project
* @param integer $p_bug_id A bug identifier.
* @param integer $p_user_id A user identifier.
* @return boolean
*/
function file_allow_bug_upload( $p_bug_id = null, $p_user_id = null ) {
if( null === $p_user_id ) {
$p_user_id = auth_get_current_user_id();
}
# If uploads are disbled just return false
if( !file_is_uploading_enabled() ) {
return false;
}
if( null === $p_bug_id ) {
# new bug
$t_project_id = helper_get_current_project();
# the user must be the reporter if they're reporting a new bug
$t_reporter = true;
} else {
# existing bug
$t_project_id = bug_get_field( $p_bug_id, 'project_id' );
# check if the user is the reporter of the bug
$t_reporter = bug_is_user_reporter( $p_bug_id, $p_user_id );
}
if( $t_reporter && ( ON == config_get( 'allow_reporter_upload' ) ) ) {
return true;
}
# Check the access level against the config setting
return access_has_project_level( config_get( 'upload_bug_file_threshold' ), $t_project_id, $p_user_id );
}
/**
* checks whether the specified upload path exists and is writable
* @param string $p_upload_path Upload path.
* @return void
*/
function file_ensure_valid_upload_path( $p_upload_path ) {
if( !file_exists( $p_upload_path ) || !is_dir( $p_upload_path ) || !is_writable( $p_upload_path ) || !is_readable( $p_upload_path ) ) {
trigger_error( ERROR_FILE_INVALID_UPLOAD_PATH, ERROR );
}
}
/**
* Ensure a file was uploaded
*
* This function perform various checks for determining if the upload was successful
*
* @param array $p_file The uploaded file info, as retrieved from gpc_get_file().
* @return void
*/
function file_ensure_uploaded( array $p_file ) {
switch( $p_file['error'] ) {
case UPLOAD_ERR_INI_SIZE:
case UPLOAD_ERR_FORM_SIZE:
trigger_error( ERROR_FILE_TOO_BIG, ERROR );
break;
case UPLOAD_ERR_PARTIAL:
case UPLOAD_ERR_NO_FILE:
trigger_error( ERROR_FILE_NO_UPLOAD_FAILURE, ERROR );
break;
default:
break;
}
if( ( '' == $p_file['tmp_name'] ) || ( '' == $p_file['name'] ) ) {
trigger_error( ERROR_FILE_NO_UPLOAD_FAILURE, ERROR );
}
if( !is_readable( $p_file['tmp_name'] ) ) {
trigger_error( ERROR_UPLOAD_FAILURE, ERROR );
}
}
/**
* Get file content
*
* @param integer $p_file_id File identifier.
* @param string $p_type File type (either 'bug' or 'doc').
* @return array|boolean array containing file type and content or false on failure to retrieve file
*/
function file_get_content( $p_file_id, $p_type = 'bug' ) {
# we handle the case where the file is attached to a bug
# or attached to a project as a project doc.
$t_query = '';
switch( $p_type ) {
case 'bug':
$t_query = 'SELECT * FROM {bug_file} WHERE id=' . db_param();
break;
case 'doc':
$t_query = 'SELECT * FROM {project_file} WHERE id=' . db_param();
break;
default:
return false;
}
$t_result = db_query( $t_query, array( $p_file_id ) );
$t_row = db_fetch_array( $t_result );
if( $p_type == 'bug' ) {
$t_project_id = bug_get_field( $t_row['bug_id'], 'project_id' );
} else {
$t_project_id = $t_row['bug_id'];
}
# If finfo is available (always true for PHP >= 5.3.0) we can use it to determine the MIME type of files
$t_finfo_available = false;
if( class_exists( 'finfo' ) ) {
$t_info_file = config_get( 'fileinfo_magic_db_file' );
if( is_blank( $t_info_file ) ) {
$t_finfo = new finfo( FILEINFO_MIME );
} else {
$t_finfo = new finfo( FILEINFO_MIME, $t_info_file );
}
if( $t_finfo ) {
$t_finfo_available = true;
}
}
$t_content_type = $t_row['file_type'];
switch( config_get( 'file_upload_method' ) ) {
case DISK:
$t_local_disk_file = file_normalize_attachment_path( $t_row['diskfile'], $t_project_id );
if( file_exists( $t_local_disk_file ) ) {
if( $t_finfo_available ) {
$t_file_info_type = $t_finfo->file( $t_local_disk_file );
if( $t_file_info_type !== false ) {
$t_content_type = $t_file_info_type;
}
}
return array( 'type' => $t_content_type, 'content' => file_get_contents( $t_local_disk_file ) );
}
return false;
break;
case DATABASE:
if( $t_finfo_available ) {
$t_file_info_type = $t_finfo->buffer( $t_row['content'] );
if( $t_file_info_type !== false ) {
$t_content_type = $t_file_info_type;
}
}
return array( 'type' => $t_content_type, 'content' => $t_row['content'] );
break;
default:
trigger_error( ERROR_GENERIC, ERROR );
}
}
/**
* Move any attachments as needed when a bug is moved from project to project.
*
* @param integer $p_bug_id ID of bug containing attachments to be moved.
* @param integer $p_project_id_to Destination project ID for the bug.
* @return void
*
* @todo: this function can't cope with source or target storing attachments in DB
*/
function file_move_bug_attachments( $p_bug_id, $p_project_id_to ) {
$t_project_id_from = bug_get_field( $p_bug_id, 'project_id' );
if( $t_project_id_from == $p_project_id_to ) {
return;
}
$t_method = config_get( 'file_upload_method' );
if( $t_method != DISK ) {
return;
}
if( !file_bug_has_attachments( $p_bug_id ) ) {
return;
}
$t_path_from = project_get_field( $t_project_id_from, 'file_path' );
if( is_blank( $t_path_from ) ) {
$t_path_from = config_get( 'absolute_path_default_upload_folder', null, null, $t_project_id_from );
}
file_ensure_valid_upload_path( $t_path_from );
$t_path_to = project_get_field( $p_project_id_to, 'file_path' );
if( is_blank( $t_path_to ) ) {
$t_path_to = config_get( 'absolute_path_default_upload_folder', null, null, $p_project_id_to );
}
file_ensure_valid_upload_path( $t_path_to );
if( $t_path_from == $t_path_to ) {
return;
}
# Initialize the update query to update a single row
$c_bug_id = (int)$p_bug_id;
$t_query_disk_attachment_update = 'UPDATE {bug_file}
SET folder=' . db_param() . '
WHERE bug_id=' . db_param() . '
AND id =' . db_param();
$t_attachment_rows = bug_get_attachments( $p_bug_id );
$t_attachments_count = count( $t_attachment_rows );
for( $i = 0; $i < $t_attachments_count; $i++ ) {
$t_row = $t_attachment_rows[$i];
$t_basename = basename( $t_row['diskfile'] );
$t_disk_file_name_from = file_path_combine( $t_path_from, $t_basename );
$t_disk_file_name_to = file_path_combine( $t_path_to, $t_basename );
if( !file_exists( $t_disk_file_name_to ) ) {
chmod( $t_disk_file_name_from, 0775 );
if( !rename( $t_disk_file_name_from, $t_disk_file_name_to ) ) {
if( !copy( $t_disk_file_name_from, $t_disk_file_name_to ) ) {
trigger_error( ERROR_FILE_MOVE_FAILED, ERROR );
}
file_delete_local( $t_disk_file_name_from );
}
chmod( $t_disk_file_name_to, config_get( 'attachments_file_permissions' ) );
db_query( $t_query_disk_attachment_update, array( db_prepare_string( $t_path_to ), $c_bug_id, (int)$t_row['id'] ) );
} else {
trigger_error( ERROR_FILE_DUPLICATE, ERROR );
}
}
}
/**
*
* Copies all attachments from the source bug to the destination bug
*
* <p>Does not perform history logging and does not perform access checks.</p>
*
* @param integer $p_source_bug_id Source Bug.
* @param integer $p_dest_bug_id Destination Bug.
* @return void
*/
function file_copy_attachments( $p_source_bug_id, $p_dest_bug_id ) {
$t_query = 'SELECT * FROM {bug_file} WHERE bug_id = ' . db_param();
$t_result = db_query( $t_query, array( $p_source_bug_id ) );
$t_count = db_num_rows( $t_result );
$t_project_id = bug_get_field( $p_source_bug_id, 'project_id' );
for( $i = 0;$i < $t_count;$i++ ) {