diff options
Diffstat (limited to 'ext/exif/exif.c')
| -rw-r--r-- | ext/exif/exif.c | 3534 |
1 files changed, 0 insertions, 3534 deletions
diff --git a/ext/exif/exif.c b/ext/exif/exif.c deleted file mode 100644 index a61c6ce727..0000000000 --- a/ext/exif/exif.c +++ /dev/null @@ -1,3534 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | PHP Version 4 | - +----------------------------------------------------------------------+ - | Copyright (c) 1997-2002 The PHP Group | - +----------------------------------------------------------------------+ - | This source file is subject to version 2.02 of the PHP license, | - | that is bundled with this package in the file LICENSE, and is | - | available at through the world-wide-web at | - | http://www.php.net/license/2_02.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: Rasmus Lerdorf <rasmus@php.net> | - | Marcus Boerger <helly@php.net> | - +----------------------------------------------------------------------+ - */ - -/* $Id$ */ - -/* ToDos - * - * See if example images from http://www.exif.org have illegal - * thumbnail sizes or if code is corrupt. - * Create/Update exif headers. - * Create/Remove/Update image thumbnails. - */ - -/* Security - * - * At current time i do not see any security problems but a potential - * attacker could generate an image with recursive ifd pointers...(Marcus) - */ - -/* Fragments of the code in this module were borrowed from the public domain - * jhead.c package with the author's consent. - * - * The original header from the jhead.c file was: - * - * -------------------------------------------------------------------------- - * Program to pull the information out of various types of EFIF digital - * camera files and show it in a reasonably consistent way - * - * Version 0.9 - * - * Compiles with MSVC on Windows, or with GCC on Linux - * - * Compileing under linux: Must include math library. - * Use: cc -lm -O3 -o jhead jhead.c - * - * Matthias Wandel, Dec 1999 - April 2000 - * -------------------------------------------------------------------------- - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "php.h" -#include "ext/standard/file.h" - -#if HAVE_EXIF - -/* When EXIF_DEBUG is defined the module generates a lot of debug messages - * that help understanding what is going on. This can and should be used - * while extending the module as it shows if you are at the right position. - * You are always considered to have a copy of TIFF6.0 and EXIF2.10 standard. - */ -#undef EXIF_DEBUG - -#undef EXIF_JPEG2000 - -#include "php_exif.h" -#include <math.h> -#include "php_ini.h" -#include "ext/standard/php_string.h" -#include "ext/standard/php_image.h" -#include "ext/standard/info.h" - -#ifdef HAVE_MBSTRING -#include "ext/mbstring/mbstring.h" -#endif - -typedef unsigned char uchar; - -#ifndef TRUE -# define TRUE 1 -# define FALSE 0 -#endif - -#ifndef max -# define max(a,b) ((a)>(b) ? (a) : (b)) -#endif - -#define EFREE_IF(ptr) if (ptr) efree(ptr) - -/* {{{ exif_functions[] - */ -function_entry exif_functions[] = { - PHP_FE(exif_read_data, NULL) - PHP_FALIAS(read_exif_data, exif_read_data, NULL) - PHP_FE(exif_tagname, NULL) - PHP_FE(exif_thumbnail, NULL) - PHP_FE(exif_imagetype, NULL) - {NULL, NULL, NULL} -}; -/* }}} */ - -#define EXIF_VERSION "1.3 $Id$" - -/* {{{ PHP_MINFO_FUNCTION - */ -PHP_MINFO_FUNCTION(exif) -{ - php_info_print_table_start(); - php_info_print_table_row(2, "EXIF Support", "enabled"); - php_info_print_table_row(2, "EXIF Version", EXIF_VERSION); - php_info_print_table_row(2, "Supported EXIF Version", "02100"); - php_info_print_table_row(2, "Supported filetypes", "JPEG,TIFF"); - php_info_print_table_end(); -} -/* }}} */ - -ZEND_BEGIN_MODULE_GLOBALS(exif) - char * encode_unicode; - char * decode_unicode_be; - char * decode_unicode_le; - char * encode_jis; - char * decode_jis_be; - char * decode_jis_le; -ZEND_END_MODULE_GLOBALS(exif) - -ZEND_DECLARE_MODULE_GLOBALS(exif) - -#ifdef ZTS -#define EXIF_G(v) TSRMG(exif_globals_id, zend_exif_globals *, v) -#else -#define EXIF_G(v) (exif_globals.v) -#endif - -/* {{{ PHP_INI - */ - -ZEND_API ZEND_INI_MH(OnUpdateEncode) -{ -#ifdef HAVE_MBSTRING - if (new_value && strlen(new_value) && !php_mb_check_encoding_list(new_value TSRMLS_CC)) { - php_error(E_WARNING,"Illegal encoding ignored: '%s'", new_value); - return FAILURE; - } -#endif - return OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC); -} - -ZEND_API ZEND_INI_MH(OnUpdateDecode) -{ -#ifdef HAVE_MBSTRING - if (!php_mb_check_encoding_list(new_value TSRMLS_CC)) { - php_error(E_WARNING,"Illegal encoding ignored: '%s'", new_value); - return FAILURE; - } -#endif - return OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC); -} - -PHP_INI_BEGIN() - STD_PHP_INI_ENTRY("exif.encode_unicode", "ISO-8859-15", PHP_INI_ALL, OnUpdateEncode, encode_unicode, zend_exif_globals, exif_globals) - STD_PHP_INI_ENTRY("exif.decode_unicode_motorola", "UCS-2BE", PHP_INI_ALL, OnUpdateDecode, decode_unicode_be, zend_exif_globals, exif_globals) - STD_PHP_INI_ENTRY("exif.decode_unicode_intel", "UCS-2LE", PHP_INI_ALL, OnUpdateDecode, decode_unicode_le, zend_exif_globals, exif_globals) - STD_PHP_INI_ENTRY("exif.encode_jis", "", PHP_INI_ALL, OnUpdateEncode, encode_jis, zend_exif_globals, exif_globals) - STD_PHP_INI_ENTRY("exif.decode_jis_motorola", "JIS", PHP_INI_ALL, OnUpdateDecode, decode_jis_be, zend_exif_globals, exif_globals) - STD_PHP_INI_ENTRY("exif.decode_jis_intel", "JIS", PHP_INI_ALL, OnUpdateDecode, decode_jis_le, zend_exif_globals, exif_globals) -PHP_INI_END() -/* }}} */ - -/* {{{ php_extname_init_globals - */ -static void php_exif_init_globals(zend_exif_globals *exif_globals) -{ - exif_globals->encode_unicode = NULL; - exif_globals->decode_unicode_be = NULL; - exif_globals->decode_unicode_le = NULL; - exif_globals->encode_jis = NULL; - exif_globals->decode_jis_be = NULL; - exif_globals->decode_jis_le = NULL; -} -/* }}} */ - -/* {{{ PHP_MINIT_FUNCTION(exif) - Get the size of an image as 4-element array */ -PHP_MINIT_FUNCTION(exif) -{ - ZEND_INIT_MODULE_GLOBALS(exif, php_exif_init_globals, NULL); - REGISTER_INI_ENTRIES(); - REGISTER_LONG_CONSTANT("IMAGETYPE_GIF", IMAGE_FILETYPE_GIF, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_JPEG", IMAGE_FILETYPE_JPEG, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_PNG", IMAGE_FILETYPE_PNG, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_SWF", IMAGE_FILETYPE_SWF, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_PSD", IMAGE_FILETYPE_PSD, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_BMP", IMAGE_FILETYPE_BMP, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_TIFF_II", IMAGE_FILETYPE_TIFF_II, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_TIFF_MM", IMAGE_FILETYPE_TIFF_MM, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_JPC", IMAGE_FILETYPE_JPC, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_JP2", IMAGE_FILETYPE_JP2, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_JPX", IMAGE_FILETYPE_JPX, CONST_CS | CONST_PERSISTENT); - REGISTER_LONG_CONSTANT("IMAGETYPE_JB2", IMAGE_FILETYPE_JB2, CONST_CS | CONST_PERSISTENT); - return SUCCESS; -} -/* }}} */ - -/* {{{ PHP_MSHUTDOWN_FUNCTION - */ -PHP_MSHUTDOWN_FUNCTION(exif) -{ - UNREGISTER_INI_ENTRIES(); - return SUCCESS; -} -/* }}} */ - -/* {{{ exif_module_entry - */ -zend_module_entry exif_module_entry = { -#if ZEND_MODULE_API_NO >= 20010901 - STANDARD_MODULE_HEADER, -#endif - "exif", - exif_functions, - PHP_MINIT(exif), - PHP_MSHUTDOWN(exif), - NULL, NULL, - PHP_MINFO(exif), -#if ZEND_MODULE_API_NO >= 20010901 - EXIF_VERSION, -#endif - STANDARD_MODULE_PROPERTIES -}; -/* }}} */ - -#ifdef COMPILE_DL_EXIF -ZEND_GET_MODULE(exif) -#endif - -/* {{{ php_strnlen - * get length of string if buffer if less than buffer size or buffer size */ -static size_t php_strnlen(char* str, size_t maxlen) { - size_t len = 0; - - if (str && maxlen && *str) { - do { - len++; - } while (--maxlen && *(++str)); - } - return len; -} -/* }}} */ - -/* {{{ error messages -*/ -static const char * EXIF_ERROR_EALLOC = "Cannot allocate memory for all data"; -static const char * EXIF_ERROR_FILEEOF = "Unexpected end of file reached"; -static const char * EXIF_ERROR_CORRUPT = "File structure corrupted"; -static const char * EXIF_ERROR_THUMBEOF = "Thumbnail goes IFD boundary or end of file reached"; -static const char * EXIF_ERROR_FSREALLOC = "Illegal reallocating of undefined file section"; - -#define EXIF_ERRLOG_EALLOC php_error(E_ERROR, EXIF_ERROR_EALLOC); -#define EXIF_ERRLOG_FILEEOF php_error(E_WARNING, EXIF_ERROR_FILEEOF); -#define EXIF_ERRLOG_CORRUPT php_error(E_WARNING, EXIF_ERROR_CORRUPT); -#define EXIF_ERRLOG_THUMBEOF php_error(E_WARNING, EXIF_ERROR_THUMBEOF); -#define EXIF_ERRLOG_FSREALLOC php_error(E_WARNING, EXIF_ERROR_FSREALLOC); -/* }}} */ - -/* {{{ format description defines - Describes format descriptor -*/ -static int php_tiff_bytes_per_format[] = {0, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8}; -#define NUM_FORMATS 12 - -#define TAG_FMT_BYTE 1 -#define TAG_FMT_STRING 2 -#define TAG_FMT_USHORT 3 -#define TAG_FMT_ULONG 4 -#define TAG_FMT_URATIONAL 5 -#define TAG_FMT_SBYTE 6 -#define TAG_FMT_UNDEFINED 7 -#define TAG_FMT_SSHORT 8 -#define TAG_FMT_SLONG 9 -#define TAG_FMT_SRATIONAL 10 -#define TAG_FMT_SINGLE 11 -#define TAG_FMT_DOUBLE 12 - -#ifdef EXIF_DEBUG -static char *exif_get_tagformat(int format) -{ - switch(format) { - case TAG_FMT_BYTE: return "BYTE"; - case TAG_FMT_STRING: return "STRING"; - case TAG_FMT_USHORT: return "USHORT"; - case TAG_FMT_ULONG: return "ULONG"; - case TAG_FMT_URATIONAL: return "URATIONAL"; - case TAG_FMT_SBYTE: return "SBYTE"; - case TAG_FMT_UNDEFINED: return "UNDEFINED"; - case TAG_FMT_SSHORT: return "SSHORT"; - case TAG_FMT_SLONG: return "SLONG"; - case TAG_FMT_SRATIONAL: return "SRATIONAL"; - case TAG_FMT_SINGLE: return "SINGLE"; - case TAG_FMT_DOUBLE: return "DOUBLE"; - } - return "*Illegal"; -} -#endif - -/* Describes tag values */ -#define TAG_TIFF_COMMENT 0x00FE /* SHOUDLNT HAPPEN */ -#define TAG_NEW_SUBFILE 0x00FE /* New version of subfile tag */ -#define TAG_SUBFILE_TYPE 0x00FF /* Old version of subfile tag */ -#define TAG_IMAGEWIDTH 0x0100 -#define TAG_IMAGEHEIGHT 0x0101 -#define TAG_BITS_PER_SAMPLE 0x0102 -#define TAG_COMPRESSION 0x0103 -#define TAG_PHOTOMETRIC_INTERPRETATION 0x0106 -#define TAG_TRESHHOLDING 0x0107 -#define TAG_CELL_WIDTH 0x0108 -#define TAG_CELL_HEIGHT 0x0109 -#define TAG_STRIP_OFFSETS 0x0111 -#define TAG_FILL_ORDER 0x010A -#define TAG_DOCUMENT_NAME 0x010D -#define TAG_IMAGE_DESCRIPTION 0x010E -#define TAG_MAKE 0x010F -#define TAG_MODEL 0x0110 -#define TAG_STRIP_OFFSETS 0x0111 -#define TAG_ORIENTATION 0x0112 -#define TAG_SAMPLES_PER_PIXEL 0x0115 -#define TAG_ROWS_PER_STRIP 0x0116 -#define TAG_STRIP_BYTE_COUNTS 0x0117 -#define TAG_MIN_SAMPPLE_VALUE 0x0118 -#define TAG_MAX_SAMPLE_VALUE 0x0119 -#define TAG_X_RESOLUTION 0x011A -#define TAG_Y_RESOLUTION 0x011B -#define TAG_PLANAR_CONFIGURATION 0x011C -#define TAG_PAGE_NAME 0x011D -#define TAG_X_POSITION 0x011E -#define TAG_Y_POSITION 0x011F -#define TAG_FREE_OFFSETS 0x0120 -#define TAG_FREE_BYTE_COUNTS 0x0121 -#define TAG_GRAY_RESPONSE_UNIT 0x0122 -#define TAG_GRAY_RESPONSE_CURVE 0x0123 -#define TAG_RESOLUTION_UNIT 0x0128 -#define TAG_PAGE_NUMBER 0x0129 -#define TAG_TRANSFER_FUNCTION 0x012D -#define TAG_SOFTWARE 0x0131 -#define TAG_DATETIME 0x0132 -#define TAG_ARTIST 0x013B -#define TAG_HOST_COMPUTER 0x013C -#define TAG_PREDICATOR 0x013D -#define TAG_WHITE_POINT 0x013E -#define TAG_PRIMARY_CHROMATICITIES 0x013F -#define TAG_COLOR_MAP 0x0140 -#define TAG_HALFTONE_HINTS 0x0141 -#define TAG_TILE_WIDTH 0x0142 -#define TAG_TILE_LENGTH 0x0143 -#define TAG_TILE_OFFSETS 0x0144 -#define TAG_TILE_BYTE_COUNTS 0x0145 -#define TAG_INK_SETMPUTER 0x014C -#define TAG_NUMBER_OF_INKS 0x014E -#define TAG_INK_NAMES 0x014D -#define TAG_DOT_RANGE 0x0150 -#define TAG_TARGET_PRINTER 0x0151 -#define TAG_EXTRA_SAMPLE 0x0152 -#define TAG_SAMPLE_FORMAT 0x0153 -#define TAG_S_MIN_SAMPLE_VALUE 0x0154 -#define TAG_S_MAX_SAMPLE_VALUE 0x0155 -#define TAG_TRANSFER_RANGE 0x0156 -#define TAG_JPEG_PROC 0x0200 -#define TAG_JPEG_INTERCHANGE_FORMAT 0x0201 -#define TAG_JPEG_INTERCHANGE_FORMAT_LEN 0x0202 -#define TAG_JPEG_RESTART_INTERVAL 0x0203 -#define TAG_JPEG_LOSSLESS_PREDICTOR 0x0205 -#define TAG_JPEG_POINT_TRANSFORMS 0x0206 -#define TAG_JPEG_Q_TABLES 0x0207 -#define TAG_JPEG_DC_TABLES 0x0208 -#define TAG_JPEG_AC_TABLES 0x0209 -#define TAG_YCC_COEFFICIENTS 0x0211 -#define TAG_YCC_SUB_SAMPLING 0x0212 -#define TAG_YCC_POSITIONING 0x0213 -#define TAG_REFERENCE_BLACK_WHITE 0x0214 -#define TAG_COPYRIGHT 0x8298 -#define TAG_EXPOSURETIME 0x829A -#define TAG_FNUMBER 0x829D -#define TAG_EXIF_IFD_POINTER 0x8769 -#define TAG_GPS_IFD_POINTER 0x8825 -#define TAG_ISOSPEED 0x8827 -#define TAG_EXIFVERSION 0x9000 -#define TAG_SHUTTERSPEED 0x9201 -#define TAG_APERTURE 0x9202 -#define TAG_DATETIME_ORIGINAL 0x9003 -#define TAG_MAXAPERTURE 0x9205 -#define TAG_SUBJECT_DISTANCE 0x9206 -#define TAG_LIGHT_SOURCE 0x9208 -#define TAG_FLASH 0x9209 -#define TAG_FOCALLENGTH 0x920A -#define TAG_MARKER_NOTE 0x927C -#define TAG_USERCOMMENT 0x9286 -#define TAG_XP_TITLE 0x9c9b -#define TAG_XP_COMMENTS 0x9c9c -#define TAG_XP_AUTHOR 0x9c9d -#define TAG_XP_KEYWORDS 0x9c9e -#define TAG_XP_SUBJECT 0x9c9f -#define TAG_FLASH_PIX_VERSION 0xA000 -#define TAG_COLOR_SPACE 0xA001 -#define TAG_COMP_IMAGEWIDTH 0xA002 /* compressed images only */ -#define TAG_COMP_IMAGEHEIGHT 0xA003 -#define TAG_INTEROP_IFD_POINTER 0xA005 /* IFD pointer */ -#define TAG_FOCALPLANEXRES 0xA20E -#define TAG_FOCALPLANEUNITS 0xA210 - -/* Olympus specific tags */ -#define TAG_OLYMPUS_SPECIALMODE 0x0200 -#define TAG_OLYMPUS_JPEGQUAL 0x0201 -#define TAG_OLYMPUS_MACRO 0x0202 -#define TAG_OLYMPUS_DIGIZOOM 0x0204 -#define TAG_OLYMPUS_SOFTWARERELEASE 0x0207 -#define TAG_OLYMPUS_PICTINFO 0x0208 -#define TAG_OLYMPUS_CAMERAID 0x0209 -/* end Olympus specific tags */ - -/* Internal */ -#define TAG_NONE -1 /* note that -1 <> 0xFFFF */ -#define TAG_COMPUTED_VALUE -2 - -/* Values for TAG_PHOTOMETRIC_INTERPRETATION */ -#define PMI_BLACK_IS_ZERO 0 -#define PMI_WHITE_IS_ZERO 1 -#define PMI_RGB 2 -#define PMI_PALETTE_COLOR 3 -#define PMI_TRANSPARENCY_MASK 4 -#define PMI_SEPARATED 5 -#define PMI_YCBCR 6 -#define PMI_CIELAB 8 - -/* }}} */ - -/* {{{ TabTable[] - */ - -static const struct { - unsigned short Tag; - char *Desc; -} TagTable[] = { - { 0x00FE, "NewSubFile"}, - { 0x00FF, "SubFile"}, - { 0x0100, "ImageWidth"}, - { 0x0101, "ImageLength"}, - { 0x0102, "BitsPerSample"}, - { 0x0103, "Compression"}, - { 0x0106, "PhotometricInterpretation"}, - { 0x010A, "FillOrder"}, - { 0x010D, "DocumentName"}, - { 0x010E, "ImageDescription"}, - { 0x010F, "Make"}, - { 0x0110, "Model"}, - { 0x0111, "StripOffsets"}, - { 0x0112, "Orientation"}, - { 0x0115, "SamplesPerPixel"}, - { 0x0116, "RowsPerStrip"}, - { 0x0117, "StripByteCounts"}, - { 0x0118, "MinSampleValue"}, - { 0x0119, "MaxSampleValue"}, - { 0x011A, "XResolution"}, - { 0x011B, "YResolution"}, - { 0x011C, "PlanarConfiguration"}, - { 0x011D, "PageName"}, - { 0x011E, "XPosition"}, - { 0x011F, "YPosition"}, - { 0x0120, "FreeOffsets"}, - { 0x0121, "FreeByteCounts"}, - { 0x0122, "GrayResponseUnit"}, - { 0x0123, "GrayResponseCurve"}, - { 0x0124, "T4Options"}, - { 0x0125, "T6Options"}, - { 0x0128, "ResolutionUnit"}, - { 0x0129, "PageNumber"}, - { 0x012D, "TransferFunction"}, - { 0x0131, "Software"}, - { 0x0132, "DateTime"}, - { 0x013B, "Artist"}, - { 0x013C, "HostComputer"}, - { 0x013D, "Predictor"}, - { 0x013E, "WhitePoint"}, - { 0x013F, "PrimaryChromaticities"}, - { 0x0140, "ColorMap"}, - { 0x0141, "HalfToneHints"}, - { 0x0142, "TileWidth"}, - { 0x0143, "TileLength"}, - { 0x0144, "TileOffsets"}, - { 0x0145, "TileByteCounts"}, - { 0x014C, "InkSet"}, - { 0x014D, "InkNames"}, - { 0x014E, "NumberOfInks"}, - { 0x0150, "DotRange"}, - { 0x0151, "TargetPrinter"}, - { 0x0152, "ExtraSample"}, - { 0x0153, "SampleFormat"}, - { 0x0154, "SMinSampleValue"}, - { 0x0155, "SMaxSampleValue"}, - { 0x0156, "TransferRange"}, - { 0x0200, "JPEGProc"}, - { 0x0201, "JPEGInterchangeFormat"}, - { 0x0202, "JPEGInterchangeFormatLength"}, - { 0x0203, "JPEGRestartInterval"}, - { 0x0205, "JPEGLosslessPredictors"}, - { 0x0206, "JPEGPointTransforms"}, - { 0x0207, "JPEGQTables"}, - { 0x0208, "JPEGDCTables"}, - { 0x0209, "JPEGACTables"}, - { 0x0211, "YCbCrCoefficients"}, - { 0x0212, "YCbCrSubSampling"}, - { 0x0213, "YCbCrPositioning"}, - { 0x0214, "ReferenceBlackWhite"}, - { 0x1000, "RelatedImageFileFormat"}, - { 0x828D, "CFARepeatPatternDim"}, - { 0x828E, "CFAPattern"}, - { 0x828F, "BatteryLevel"}, - { 0x8298, "Copyright"}, - { 0x829A, "ExposureTime"}, - { 0x829D, "FNumber"}, - { 0x83BB, "IPTC/NAA"}, - { 0x8769, "Exif_IFD_Pointer"}, - { 0x8773, "InterColorProfile"}, - { 0x8822, "ExposureProgram"}, - { 0x8824, "SpectralSensitivity"}, - { 0x8825, "GPS_IFD_Pointer"}, - { 0x8827, "ISOSpeedRatings"}, - { 0x8828, "OECF"}, - { 0x9000, "ExifVersion"}, - { 0x9003, "DateTimeOriginal"}, - { 0x9004, "DateTimeDigitized"}, - { 0x9101, "ComponentsConfiguration"}, - { 0x9102, "CompressedBitsPerPixel"}, - { 0x9201, "ShutterSpeedValue"}, - { 0x9202, "ApertureValue"}, - { 0x9203, "BrightnessValue"}, - { 0x9204, "ExposureBiasValue"}, - { 0x9205, "MaxApertureValue"}, - { 0x9206, "SubjectDistance"}, - { 0x9207, "MeteringMode"}, - { 0x9208, "LightSource"}, - { 0x9209, "Flash"}, - { 0x920A, "FocalLength"}, - { 0x920B, "FlashEnergy"}, /* 0xA20B in JPEG */ - { 0x920C, "SpatialFrequencyResponse"}, /* 0xA20C - - */ - { 0x920E, "FocalPlaneXResolution"}, /* 0xA20E - - */ - { 0x920F, "FocalPlaneYResolution"}, /* 0xA20F - - */ - { 0x9210, "FocalPlaneResolutionUnit"}, /* 0xA210 - - */ - { 0x9214, "SubjectLocation"}, /* 0xA214 - - */ - { 0x9215, "ExposureIndex"}, /* 0xA215 - - */ - { 0x9217, "SensingMethod"}, /* 0xA217 - - */ - { 0x927C, "MakerNote"}, - { 0x9286, "UserComment"}, - { 0x9290, "SubSecTime"}, - { 0x9291, "SubSecTimeOriginal"}, - { 0x9292, "SubSecTimeDigitized"}, - { 0x9c9b, "Title" }, /* Win XP specific, Unicode */ - { 0x9c9c, "Comments" }, /* Win XP specific, Unicode */ - { 0x9c9d, "Author" }, /* Win XP specific, Unicode */ - { 0x9c9e, "Keywords" }, /* Win XP specific, Unicode */ - { 0x9c9f, "Subject" }, /* Win XP specific, Unicode, not to be confused with SubjectDistance and SubjectLocation */ - { 0xA000, "FlashPixVersion"}, - { 0xA001, "ColorSpace"}, - { 0xA002, "ExifImageWidth"}, - { 0xA003, "ExifImageLength"}, - { 0xA005, "InteroperabilityOffset"}, - { 0xA20B, "FlashEnergy"}, /* 0x920B in TIFF/EP */ - { 0xA20C, "SpatialFrequencyResponse"}, /* 0x920C - - */ - { 0xA20E, "FocalPlaneXResolution"}, /* 0x920E - - */ - { 0xA20F, "FocalPlaneYResolution"}, /* 0x920F - - */ - { 0xA210, "FocalPlaneResolutionUnit"}, /* 0x9210 - - */ - { 0xA214, "SubjectLocation"}, /* 0x9214 - - */ - { 0xA215, "ExposureIndex"}, /* 0x9215 - - */ - { 0xA217, "SensingMethod"}, /* 0x9217 - - */ - { 0xA300, "FileSource"}, - { 0xA301, "SceneType"}, - {TAG_NONE, "no tag value"}, - {TAG_COMPUTED_VALUE, "computed value"}, - { 0, ""} /* Important for exif_get_tagname() IF value != "" functionresult is != false */ -} ; - -/* }}} */ - -/* {{{ exif_get_tagname - Get headername for tag_num or NULL if not defined */ -static char * exif_get_tagname(int tag_num, char *ret, int len) -{ - int i, t; - char tmp[32]; - - for (i=0;;i++) { - if ((t=TagTable[i].Tag) == tag_num || !t) { - if (ret && len) { - if (!t) { - break; - } - strncpy(ret, TagTable[i].Desc, abs(len)); - if (len<0) { - len = -len; - ret[len-1]='\0'; - for(i=strlen(ret);i<len;i++)ret[i]=' '; - } - ret[len-1]='\0'; - return ret; - } - return TagTable[i].Desc; - } - } - if (ret && len) { - sprintf(tmp, "UndefinedTag:0x%04X", tag_num); - strncpy(ret, tmp, abs(len)); - if (len<0) { - len = -len; - ret[len-1]='\0'; - for(i=strlen(ret);i<len;i++)ret[i]=' '; - } - ret[len-1]='\0'; - return ret; - } - return ""; -} -/* }}} */ - -/* {{{ exif_char_dump - * Do not use! This is a debug function... */ -#ifdef EXIF_DEBUG -static unsigned char* exif_char_dump(unsigned char * addr, int len, int hex) -{ - static unsigned char buf[1024+1]; - int c, i, p=0, n = hex ? 5 : 3; - - for(i=0; i<len && p+n<=sizeof(buf); i++) { - if (i%64==0) - buf[p++] = '\n'; - c = *addr++; - if (hex) { - sprintf(buf+p, "%02X ", c); - p += 3; - } else { - if (c>=32) { - buf[p++] = c; - } else { - buf[p++] = '?'; - } - } - } - buf[sizeof(buf)-1]=0; - return buf; -} -#endif -/* }}} */ - -/* {{{ php_jpg_get16 - Get 16 bits motorola order (always) for jpeg header stuff. -*/ -static int php_jpg_get16(void *value) -{ - return (((uchar *)value)[0] << 8) | ((uchar *)value)[1]; -} -/* }}} */ - -/* {{{ php_ifd_get16u - * Convert a 16 bit unsigned value from file's native byte order */ -static int php_ifd_get16u(void *value, int motorola_intel) -{ - if (motorola_intel) { - return (((uchar *)value)[0] << 8) | ((uchar *)value)[1]; - } else { - return (((uchar *)value)[1] << 8) | ((uchar *)value)[0]; - } -} -/* }}} */ - -/* {{{ php_ifd_get16s - * Convert a 16 bit signed value from file's native byte order */ -static signed short php_ifd_get16s(void *value, int motorola_intel) -{ - return (signed short)php_ifd_get16u(value, motorola_intel); -} -/* }}} */ - -/* {{{ php_ifd_get32s - * Convert a 32 bit signed value from file's native byte order */ -static int php_ifd_get32s(void *value, int motorola_intel) -{ - if (motorola_intel) { - return (((char *)value)[0] << 24) - | (((uchar *)value)[1] << 16) - | (((uchar *)value)[2] << 8 ) - | (((uchar *)value)[3] ); - } else { - return (((char *)value)[3] << 24) - | (((uchar *)value)[2] << 16) - | (((uchar *)value)[1] << 8 ) - | (((uchar *)value)[0] ); - } -} -/* }}} */ - -/* {{{ php_ifd_get32u - * Write 32 bit unsigned value to data */ -static unsigned php_ifd_get32u(void *value, int motorola_intel) -{ - return (unsigned)php_ifd_get32s(value, motorola_intel) & 0xffffffff; -} -/* }}} */ - -/* {{{ php_ifd_set16u - * Write 16 bit unsigned value to data */ -static void php_ifd_set16u(char *data, unsigned int value, int motorola_intel) -{ - if (motorola_intel) { - data[0] = (value & 0xFF00) >> 8; - data[1] = (value & 0x00FF); - } else { - data[1] = (value & 0xFF00) >> 8; - data[0] = (value & 0x00FF); - } -} -/* }}} */ - -/* {{{ php_ifd_set32u - * Convert a 32 bit unsigned value from file's native byte order */ -static void php_ifd_set32u(char *data, size_t value, int motorola_intel) -{ - if (motorola_intel) { - data[0] = (value & 0xFF000000) >> 24; - data[1] = (value & 0x00FF0000) >> 16; - data[2] = (value & 0x0000FF00) >> 8; - data[3] = (value & 0x000000FF); - } else { - data[3] = (value & 0xFF000000) >> 24; - data[2] = (value & 0x00FF0000) >> 16; - data[1] = (value & 0x0000FF00) >> 8; - data[0] = (value & 0x000000FF); - } -} -/* }}} */ - -/* {{{ exif_convert_any_format - * Evaluate number, be it int, rational, or float from directory. */ -static double exif_convert_any_format(void *value, int format, int motorola_intel) -{ - int s_den; - unsigned u_den; - - switch(format) { - case TAG_FMT_SBYTE: return *(signed char *)value; - case TAG_FMT_BYTE: return *(uchar *)value; - - case TAG_FMT_USHORT: return php_ifd_get16u(value, motorola_intel); - case TAG_FMT_ULONG: return php_ifd_get32u(value, motorola_intel); - - case TAG_FMT_URATIONAL: - u_den = php_ifd_get32u(4+(char *)value, motorola_intel); - if (u_den == 0) { - return 0; - } else { - return (double)php_ifd_get32u(value, motorola_intel) / u_den; - } - - case TAG_FMT_SRATIONAL: - s_den = php_ifd_get32s(4+(char *)value, motorola_intel); - if (s_den == 0) { - return 0; - } else { - return (double)php_ifd_get32s(value, motorola_intel) / s_den; - } - - case TAG_FMT_SSHORT: return (signed short)php_ifd_get16u(value, motorola_intel); - case TAG_FMT_SLONG: return php_ifd_get32s(value, motorola_intel); - - /* Not sure if this is correct (never seen float used in Exif format) */ - case TAG_FMT_SINGLE: - php_error(E_NOTICE, "Found value of type single"); - return (double)*(float *)value; - case TAG_FMT_DOUBLE: - php_error(E_NOTICE, "Found value of type double"); - return *(double *)value; - } - return 0; -} -/* }}} */ - -/* {{{ exif_convert_any_to_int - * Evaluate number, be it int, rational, or float from directory. */ -static size_t exif_convert_any_to_int(void *value, int format, int motorola_intel) -{ - int s_den; - unsigned u_den; - - switch(format) { - case TAG_FMT_SBYTE: return *(signed char *)value; - case TAG_FMT_BYTE: return *(uchar *)value; - - case TAG_FMT_USHORT: return php_ifd_get16u(value, motorola_intel); - case TAG_FMT_ULONG: return php_ifd_get32u(value, motorola_intel); - - case TAG_FMT_URATIONAL: - u_den = php_ifd_get32u(4+(char *)value, motorola_intel); - if (u_den == 0) { - return 0; - } else { - return php_ifd_get32u(value, motorola_intel) / u_den; - } - - case TAG_FMT_SRATIONAL: - s_den = php_ifd_get32s(4+(char *)value, motorola_intel); - if (s_den == 0) { - return 0; - } else { - return php_ifd_get32s(value, motorola_intel) / s_den; - } - - case TAG_FMT_SSHORT: return php_ifd_get16u(value, motorola_intel); - case TAG_FMT_SLONG: return php_ifd_get32s(value, motorola_intel); - - /* Not sure if this is correct (never seen float used in Exif format) */ - case TAG_FMT_SINGLE: - php_error(E_NOTICE, "Found value of type single"); - return *(float *)value; - case TAG_FMT_DOUBLE: - php_error(E_NOTICE, "Found value of type double"); - return *(double *)value; - } - return 0; -} -/* }}} */ - -/* {{{ struct image_info_value, image_info_list -*/ -#ifndef WORD -#define WORD short -#endif -#ifndef DWORD -#define DWORD int -#endif - -typedef struct { - int num; - int den; -} signed_rational; - -typedef struct { - unsigned int num; - unsigned int den; -} unsigned_rational; - -typedef union _image_info_value { - char *s; - unsigned u; - int i; - float f; - double d; - signed_rational sr; - unsigned_rational ur; - union _image_info_value *list; -} image_info_value; - -typedef struct { - WORD tag; - WORD format; - DWORD length; - DWORD dummy; /* value ptr of tiff directory entry */ - char *name; - image_info_value value; -} image_info_data; - -typedef struct { - int count; - image_info_data *list; -} image_info_list; -/* }}} */ - -/* {{{ exif_get_sectionname - Returns the name of a section -*/ -#define SECTION_FILE 0 -#define SECTION_COMPUTED 1 -#define SECTION_ANY_TAG 2 -#define SECTION_IFD0 3 -#define SECTION_THUMBNAIL 4 -#define SECTION_COMMENT 5 -#define SECTION_APP0 6 -#define SECTION_EXIF 7 -#define SECTION_FPIX 8 -#define SECTION_GPS 9 -#define SECTION_INTEROP 10 -#define SECTION_APP12 11 -#define SECTION_WINXP 12 -#define SECTION_COUNT 13 - -#define FOUND_FILE (1<<SECTION_FILE) -#define FOUND_COMPUTED (1<<SECTION_COMPUTED) -#define FOUND_ANY_TAG (1<<SECTION_ANY_TAG) -#define FOUND_IFD0 (1<<SECTION_IFD0) -#define FOUND_THUMBNAIL (1<<SECTION_THUMBNAIL) -#define FOUND_COMMENT (1<<SECTION_COMMENT) -#define FOUND_APP0 (1<<SECTION_APP0) -#define FOUND_EXIF (1<<SECTION_EXIF) -#define FOUND_FPIX (1<<SECTION_FPIX) -#define FOUND_GPS (1<<SECTION_GPS) -#define FOUND_INTEROP (1<<SECTION_INTEROP) -#define FOUND_APP12 (1<<SECTION_APP12) -#define FOUND_WINXP (1<<SECTION_WINXP) - -static char *exif_get_sectionname(int section) -{ - switch(section) { - case SECTION_FILE: return "FILE"; - case SECTION_COMPUTED: return "COMPUTED"; - case SECTION_ANY_TAG: return "ANY_TAG"; - case SECTION_IFD0: return "IFD0"; - case SECTION_THUMBNAIL: return "THUMBNAIL"; - case SECTION_COMMENT: return "COMMENT"; - case SECTION_APP0: return "APP0"; - case SECTION_EXIF: return "EXIF"; - case SECTION_FPIX: return "FPIX"; - case SECTION_GPS: return "GPS"; - case SECTION_INTEROP: return "INTEROP"; - case SECTION_APP12: return "APP12"; - case SECTION_WINXP: return "WINXP"; - } - return ""; -} -/* }}} */ - -/* {{{ exif_get_sectionlist - Return list of sectionnames specified by sectionlist. Return value must be freed -*/ -static char *exif_get_sectionlist(int sectionlist) -{ - int i, len=0; - char *sections; - - for(i=0; i<SECTION_COUNT; i++) { - len += strlen(exif_get_sectionname(i))+2; - } - sections = emalloc(len+1); - if (!sections) { - EXIF_ERRLOG_EALLOC - return NULL; - } - sections[0] = '\0'; - len = 0; - for(i=0; i<SECTION_COUNT; i++) { - if (sectionlist&(1<<i)) { - sprintf(sections+len, "%s, ", exif_get_sectionname(i)); - len = strlen(sections); - } - } - if (len>2) - sections[len-2] = '\0'; - return sections; -} -/* }}} */ - -/* {{{ struct image_info_type - This structure stores Exif header image elements in a simple manner - Used to store camera data as extracted from the various ways that it can be - stored in a nexif header -*/ - -typedef struct { - int type; - size_t size; - uchar *data; -} file_section; - -typedef struct { - int count; - file_section *list; -} file_section_list; - -typedef struct { - image_filetype filetype; - size_t width, height; - size_t size; - size_t offset; - char *data; -} thumbnail_data; - -typedef struct { - char *value; - size_t size; - int tag; -} xp_field_type; - -typedef struct { - int count; - xp_field_type *list; -} xp_field_list; - -/* EXIF standard defines Copyright as "<Photographer> [ '\0' <Editor> ] ['\0']" */ -/* This structure is used to store a section of a Jpeg file. */ -typedef struct { - php_stream *infile; - char *FileName; - time_t FileDateTime; - size_t FileSize; - image_filetype FileType; - int Height, Width; - int IsColor; - - float ApertureFNumber; - float ExposureTime; - double FocalplaneUnits; - float CCDWidth; - double FocalplaneXRes; - size_t ExifImageWidth; - float FocalLength; - float Distance; - - int motorola_intel; /* 1 Motorola; 0 Intel */ - - char *UserComment; - int UserCommentLength; - char *UserCommentEncoding; - char *encode_unicode; - char *decode_unicode_be; - char *decode_unicode_le; - char *encode_jis; - char *decode_jis_be; - char *decode_jis_le; - char *Copyright; - char *CopyrightPhotographer; - char *CopyrightEditor; - - xp_field_list xp_fields; - - thumbnail_data Thumbnail; - /* other */ - int sections_found; /* FOUND_<marker> */ - image_info_list info_list[SECTION_COUNT]; - /* for parsing */ - int read_thumbnail; - int read_all; - /* internal */ - file_section_list file; -} image_info_type; -/* }}} */ - -/* {{{ jpeg_sof_info - */ -typedef struct { - int bits_per_sample; - size_t width; - size_t height; - int num_components; -} jpeg_sof_info; -/* }}} */ - -/* {{{ exif_file_sections_add - Add a file_section to image_info - returns the used block or -1. if size>0 and data == NULL buffer of size is allocated -*/ -static int exif_file_sections_add(image_info_type *ImageInfo, int type, size_t size, uchar *data) -{ - file_section *tmp; - int count = ImageInfo->file.count; - - tmp = erealloc(ImageInfo->file.list, (count+1)*sizeof(file_section)); - if (tmp == NULL) { - return 0; - } - ImageInfo->file.list = tmp; - ImageInfo->file.list[count].type = 0xFFFF; - ImageInfo->file.list[count].data = NULL; - ImageInfo->file.list[count].size = 0; - ImageInfo->file.count = count+1; - if (!size) { - data = NULL; - } else if (data == NULL) { - if ((data = emalloc(size)) == NULL) { - return -1; - } - } - ImageInfo->file.list[count].type = type; - ImageInfo->file.list[count].data = data; - ImageInfo->file.list[count].size = size; - return count; -} -/* }}} */ - -/* {{{ exif_file_sections_realloc - Reallocate a file section returns 0 on success and -1 on failure -*/ -static int exif_file_sections_realloc(image_info_type *ImageInfo, int section_index, size_t size) -{ - void *tmp; - - if (section_index >= ImageInfo->file.count) { - EXIF_ERRLOG_FSREALLOC - return -1; - } - if (!(tmp = erealloc(ImageInfo->file.list[section_index].data, size)) && size) { - EXIF_ERRLOG_EALLOC - return -1; - } - ImageInfo->file.list[section_index].data = tmp; - ImageInfo->file.list[section_index].size = size; - return 0; -} -/* }}} */ - -/* {{{ exif_file_section_free - Discard all file_sections in ImageInfo -*/ -static int exif_file_sections_free(image_info_type *ImageInfo) -{ - int i; - - if (ImageInfo->file.count) { - for (i=0; i<ImageInfo->file.count; i++) { - EFREE_IF(ImageInfo->file.list[i].data); - } - } - EFREE_IF(ImageInfo->file.list); - ImageInfo->file.count = 0; - return TRUE; -} -/* }}} */ - -/* {{{ exif_iif_add_value - Add a value to image_info -*/ -static void exif_iif_add_value(image_info_type *image_info, int section_index, char *name, int tag, int format, int length, void* value, int motorola_intel) -{ - int index; - image_info_value *info_value; - image_info_data *info_data; - image_info_data *list; - - list = erealloc(image_info->info_list[section_index].list, (image_info->info_list[section_index].count+1)*sizeof(image_info_data)); - if (!list) { - EXIF_ERRLOG_EALLOC - return; - } - image_info->info_list[section_index].list = list; - - info_data = &image_info->info_list[section_index].list[image_info->info_list[section_index].count]; - info_data->tag = tag; - info_data->format = format; - info_data->length = length; - info_data->name = estrdup(name); - if (!info_data->name) { - EXIF_ERRLOG_EALLOC - return; - } - info_value = &info_data->value; - - switch (format) { - case TAG_FMT_STRING: - if (value) { - length = php_strnlen(value, length); - info_data->length = length; - info_value->s = estrndup(value, length); - } else { - info_data->length = 0; - info_value->s = estrdup(""); - } - if (!info_value->s) { - EXIF_ERRLOG_EALLOC - info_data->length = 0; - break; /* better return with "" instead of possible casing problems */ - } - break; - - default: - /* Standard says more types possible but skip them... - * but allow users to handle data if they know how to - * So not return but use type UNDEFINED - * return; - */ - info_data->tag = TAG_FMT_UNDEFINED;/* otherwise not freed from memory */ - case TAG_FMT_SBYTE: - case TAG_FMT_BYTE: - /* in contrast to strings bytes do not need to allocate buffer for NULL if length==0 */ - if (length<1) - break; - if (format==TAG_FMT_BYTE && length==1) { - info_value->u = *(uchar*)value; - break; - } - if (format==TAG_FMT_SBYTE && length==1) { - info_value->i = *(char*)value; - info_data->length = 0; - break; - } - case TAG_FMT_UNDEFINED: - if (value) { - info_value->s = estrndup(value, length); - } else { - info_data->length = 0; - info_value->s = estrdup(""); - } - if (!info_value->s) { - EXIF_ERRLOG_EALLOC - return; - } - break; - - case TAG_FMT_USHORT: - case TAG_FMT_ULONG: - case TAG_FMT_URATIONAL: - case TAG_FMT_SSHORT: - case TAG_FMT_SLONG: - case TAG_FMT_SRATIONAL: - case TAG_FMT_SINGLE: - case TAG_FMT_DOUBLE: - if (length==0) { - break; - } else - if (length>1) { - info_data->value.list = emalloc(length*sizeof(image_info_value)); - if (!info_data->value.list) { - EXIF_ERRLOG_EALLOC - return; - } - } else { - info_value = &info_data->value; - } - for (index=0; index<length; index++) { - if (length>1) { - info_value = &info_data->value.list[index]; - } - switch (format) { - case TAG_FMT_USHORT: - info_value->u = php_ifd_get16u(value, motorola_intel); - break; - - case TAG_FMT_ULONG: - info_value->u = php_ifd_get32u(value, motorola_intel); - break; - - case TAG_FMT_URATIONAL: - info_value->ur.num = php_ifd_get32u(value, motorola_intel); - info_value->ur.den = php_ifd_get32u(4+(char *)value, motorola_intel); - break; - - case TAG_FMT_SSHORT: - info_value->i = php_ifd_get16s(value, motorola_intel); - break; - - case TAG_FMT_SLONG: - info_value->i = php_ifd_get32s(value, motorola_intel); - break; - - case TAG_FMT_SRATIONAL: - info_value->sr.num = php_ifd_get32u(value, motorola_intel); - info_value->sr.den = php_ifd_get32u(4+(char *)value, motorola_intel); - break; - - case TAG_FMT_SINGLE: - php_error(E_WARNING, "Found value of type single"); - info_value->f = (double)*(float *)value; - - case TAG_FMT_DOUBLE: - php_error(E_WARNING, "Found value of type double"); - info_value->d = *(double *)value; - break; - } - } - } - image_info->sections_found |= 1<<section_index; - image_info->info_list[section_index].count++; -} -/* }}} */ - -/* {{{ exif_iif_add_tag - Add a tag from IFD to image_info -*/ -static void exif_iif_add_tag(image_info_type *image_info, int section_index, char *name, int tag, int format, int length, void* value) -{ - exif_iif_add_value(image_info, section_index, name, tag, format, length, value, image_info->motorola_intel); -} -/* }}} */ - -/* {{{ exif_iif_add_int - Add an int value to image_info -*/ -static void exif_iif_add_int(image_info_type *image_info, int section_index, char *name, int value) -{ - image_info_data *info_data; - image_info_data *list; - - list = erealloc(image_info->info_list[section_index].list, (image_info->info_list[section_index].count+1)*sizeof(image_info_data)); - if (!list) { - EXIF_ERRLOG_EALLOC - return; - } - image_info->info_list[section_index].list = list; - - info_data = &image_info->info_list[section_index].list[image_info->info_list[section_index].count]; - info_data->tag = TAG_NONE; - info_data->format = TAG_FMT_SLONG; - info_data->length = 1; - info_data->name = estrdup(name); - if (!info_data->name) { - EXIF_ERRLOG_EALLOC - return; - } - info_data->value.i = value; - image_info->sections_found |= 1<<section_index; - image_info->info_list[section_index].count++; -} -/* }}} */ - -/* {{{ exif_iif_add_str - Add a string value to image_info MUST BE NUL TERMINATED -*/ -static void exif_iif_add_str(image_info_type *image_info, int section_index, char *name, char *value) -{ - image_info_data *info_data; - image_info_data *list; - - if (value) { - list = erealloc(image_info->info_list[section_index].list, (image_info->info_list[section_index].count+1)*sizeof(image_info_data)); - if (!list) { - EXIF_ERRLOG_EALLOC - return; - } - image_info->info_list[section_index].list = list; - info_data = &image_info->info_list[section_index].list[image_info->info_list[section_index].count]; - info_data->tag = TAG_NONE; - info_data->format = TAG_FMT_STRING; - info_data->length = 1; - info_data->name = estrdup(name); - if (!info_data->name) { - EXIF_ERRLOG_EALLOC - return; - } - info_data->value.s = estrdup(value); - if (!info_data->value.s) { - EXIF_ERRLOG_EALLOC - return; - } - image_info->sections_found |= 1<<section_index; - image_info->info_list[section_index].count++; - } -} -/* }}} */ - -/* {{{ exif_iif_add_fmt - Add a format string value to image_info MUST BE NUL TERMINATED -*/ -static void exif_iif_add_fmt(image_info_type *image_info, int section_index, char *name, char *value, ...) -{ - char *tmp; - va_list arglist; - - va_start(arglist, value); - if (value) { - vspprintf(&tmp, 0, value, arglist); - exif_iif_add_str(image_info, section_index, name, tmp); - efree(tmp); - } - va_end(arglist); -} -/* }}} */ - -/* {{{ exif_iif_add_str - Add a string value to image_info MUST BE NUL TERMINATED -*/ -static void exif_iif_add_buffer(image_info_type *image_info, int section_index, char *name, int length, char *value) -{ - image_info_data *info_data; - image_info_data *list; - - if (value) { - list = erealloc(image_info->info_list[section_index].list, (image_info->info_list[section_index].count+1)*sizeof(image_info_data)); - if (!list) { - EXIF_ERRLOG_EALLOC - return; - } - image_info->info_list[section_index].list = list; - info_data = &image_info->info_list[section_index].list[image_info->info_list[section_index].count]; - info_data->tag = TAG_NONE; - info_data->format = TAG_FMT_UNDEFINED; - info_data->length = length; - info_data->name = estrdup(name); - if (!info_data->name) { - EXIF_ERRLOG_EALLOC - return; - } - info_data->value.s = emalloc(length+1); - if (!info_data->value.s) { - EXIF_ERRLOG_EALLOC - return; - } - memcpy(info_data->value.s, value, length); - info_data->value.s[length] = 0; - image_info->sections_found |= 1<<section_index; - image_info->info_list[section_index].count++; - } -} -/* }}} */ - -/* {{{ exif_iif_free - Free memory allocated for image_info -*/ -static void exif_iif_free(image_info_type *image_info, int section_index) { - int i; - void *f; /* faster */ - - if (image_info->info_list[section_index].count) { - for (i=0; i < image_info->info_list[section_index].count; i++) { - if ((f=image_info->info_list[section_index].list[i].name) != NULL) { - efree(f); - } - switch(image_info->info_list[section_index].list[i].format) { - case TAG_FMT_SBYTE: - case TAG_FMT_BYTE: - /* in contrast to strings bytes do not need to allocate buffer for NULL if length==0 */ - if (image_info->info_list[section_index].list[i].length<=1) - break; - default: - case TAG_FMT_UNDEFINED: - case TAG_FMT_STRING: - if ((f=image_info->info_list[section_index].list[i].value.s) != NULL) { - efree(f); - } - break; - - case TAG_FMT_USHORT: - case TAG_FMT_ULONG: - case TAG_FMT_URATIONAL: - case TAG_FMT_SSHORT: - case TAG_FMT_SLONG: - case TAG_FMT_SRATIONAL: - case TAG_FMT_SINGLE: - case TAG_FMT_DOUBLE: - /* nothing to do here */ - if (image_info->info_list[section_index].list[i].length > 1) { - if ((f=image_info->info_list[section_index].list[i].value.list) != NULL) { - efree(f); - } - } - break; - } - } - } - EFREE_IF(image_info->info_list[section_index].list); -} -/* }}} */ - -/* {{{ add_assoc_image_info - * Add image_info to associative array value. */ -static void add_assoc_image_info(pval *value, int sub_array, image_info_type *image_info, int section_index) -{ - char buffer[64], *val, *name, uname[64]; - int i, ap, l, b, idx=0, done, unknown=0; - image_info_value *info_value; - image_info_data *info_data; - pval *tmpi, *array = NULL; - - if (image_info->info_list[section_index].count) { - if (sub_array) { - MAKE_STD_ZVAL(tmpi); - array_init(tmpi); - } else { - tmpi = value; - } - - for(i=0; i<image_info->info_list[section_index].count; i++) { - done = 0; - info_data = &image_info->info_list[section_index].list[i]; - info_value = &info_data->value; - if (!(name = info_data->name)) { - sprintf(uname, "%d", unknown++); - name = uname; - } - if (info_data->length==0) { - add_assoc_null(tmpi, name); - } else { - switch (info_data->format) { - default: - /* Standard says more types possible but skip them... - * but allow users to handle data if they know how to - * So not return but use type UNDEFINED - * return; - */ - case TAG_FMT_UNDEFINED: - if (!info_value->s) { - add_assoc_stringl(tmpi, name, "", 0, 1); - } else { - add_assoc_stringl(tmpi, name, info_value->s, info_data->length, 1); - } - break; - - case TAG_FMT_STRING: - if (!(val = info_value->s)) { - val = ""; - } - if (section_index==SECTION_COMMENT) { - add_index_string(tmpi, idx++, val, 1); - } else { - add_assoc_string(tmpi, name, val, 1); - } - break; - - case TAG_FMT_URATIONAL: - case TAG_FMT_SRATIONAL: - case TAG_FMT_BYTE: - case TAG_FMT_SBYTE: - case TAG_FMT_USHORT: - case TAG_FMT_SSHORT: - case TAG_FMT_SINGLE: - case TAG_FMT_DOUBLE: - case TAG_FMT_ULONG: - case TAG_FMT_SLONG: - /* now the rest, first see if it becomes an array */ - if ((l = info_data->length) > 1) { - array = NULL; - MAKE_STD_ZVAL(array); - array_init(array); - } - for(ap=0; ap<l; ap++) { - if (l>1) { - info_value = &info_data->value.list[ap]; - } - switch (info_data->format) { - case TAG_FMT_BYTE: - if (l>1) { - info_value = &info_data->value; - for (b=0;b<l;b++) { - add_index_long(array, b, (int)(info_value->s[b])); - } - break; - } - case TAG_FMT_USHORT: - case TAG_FMT_ULONG: - if (l==1) { - add_assoc_long(tmpi, name, (int)info_value->u); - } else { - add_index_long(array, ap, (int)info_value->u); - } - break; - - case TAG_FMT_URATIONAL: - sprintf(buffer, "%i/%i", info_value->ur.num, info_value->ur.den); - if (l==1) { - add_assoc_string(tmpi, name, buffer, 1); - } else { - add_index_string(array, ap, buffer, 1); - } - break; - - case TAG_FMT_SBYTE: - if (l>1) { - info_value = &info_data->value; - for (b=0;b<l;b++) { - add_index_long(array, ap, (int)info_value->s[b]); - } - break; - } - case TAG_FMT_SSHORT: - case TAG_FMT_SLONG: - if (l==1) { - add_assoc_long(tmpi, name, info_value->i); - } else { - add_index_long(array, ap, info_value->i); - } - break; - - case TAG_FMT_SRATIONAL: - sprintf(buffer, "%i/%i", info_value->sr.num, info_value->sr.den); - if (l==1) { - add_assoc_string(tmpi, name, buffer, 1); - } else { - add_index_string(array, ap, buffer, 1); - } - break; - - case TAG_FMT_SINGLE: - if (l==1) { - add_assoc_double(tmpi, name, info_value->f); - } else { - add_index_double(array, ap, info_value->f); - } - break; - - case TAG_FMT_DOUBLE: - if (l==1) { - add_assoc_double(tmpi, name, info_value->d); - } else { - add_index_double(array, ap, info_value->d); - } - break; - } - info_value = &info_data->value.list[ap]; - } - if (l>1) { - add_assoc_zval(tmpi, name, array); - } - break; - } - } - } - if (sub_array) { - add_assoc_zval(value, exif_get_sectionname(section_index), tmpi); - } - } -} -/* }}} */ - -/* {{{ Markers - JPEG markers consist of one or more 0xFF bytes, followed by a marker - code byte (which is not an FF). Here are the marker codes of interest - in this program. (See jdmarker.c for a more complete list.) -*/ - -#define M_TEM 0x01 /* temp for arithmetic coding */ -#define M_RES 0x02 /* reserved */ -#define M_SOF0 0xC0 /* Start Of Frame N */ -#define M_SOF1 0xC1 /* N indicates which compression process */ -#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ -#define M_SOF3 0xC3 -#define M_DHT 0xC4 -#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ -#define M_SOF6 0xC6 -#define M_SOF7 0xC7 -#define M_JPEG 0x08 /* reserved for extensions */ -#define M_SOF9 0xC9 -#define M_SOF10 0xCA -#define M_SOF11 0xCB -#define M_DAC 0xCC /* arithmetic table */ -#define M_SOF13 0xCD -#define M_SOF14 0xCE -#define M_SOF15 0xCF -#define M_RST0 0xD0 /* restart segment */ -#define M_RST1 0xD1 -#define M_RST2 0xD2 -#define M_RST3 0xD3 -#define M_RST4 0xD4 -#define M_RST5 0xD5 -#define M_RST6 0xD6 -#define M_RST7 0xD7 -#define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ -#define M_EOI 0xD9 /* End Of Image (end of datastream) */ -#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */ -#define M_DQT 0xDB -#define M_DNL 0xDC -#define M_DRI 0xDD -#define M_DHP 0xDE -#define M_EXP 0xDF -#define M_APP0 0xE0 -#define M_EXIF 0xE1 /* Exif Attribute Information */ -#define M_APP2 0xE2 /* Flash Pix Extension Data? */ -#define M_APP3 0xE3 -#define M_APP4 0xE4 -#define M_APP5 0xE5 -#define M_APP6 0xE6 -#define M_APP7 0xE7 -#define M_APP8 0xE8 -#define M_APP9 0xE9 -#define M_APP10 0xEA -#define M_APP11 0xEB -#define M_APP12 0xEC -#define M_APP13 0xED /* IPTC International Press Telecommunications Council */ -#define M_APP14 0xEE -#define M_APP15 0xEF -#define M_JPG0 0xF0 -#define M_JPG1 0xF1 -#define M_JPG2 0xF2 -#define M_JPG3 0xF3 -#define M_JPG4 0xF4 -#define M_JPG5 0xF5 -#define M_JPG6 0xF6 -#define M_JPG7 0xF7 -#define M_JPG8 0xF8 -#define M_JPG9 0xF9 -#define M_JPG10 0xFA -#define M_JPG11 0xFB -#define M_JPG12 0xFC -#define M_JPG13 0xFD -#define M_COM 0xFE /* COMment */ - -#define M_PSEUDO 0x123 /* Extra value. */ - -/* }}} */ - -/* {{{ jpeg2000 markers - */ -/* Markers x30 - x3F do not have a segment */ -/* Markers x00, x01, xFE, xC0 - xDF ISO/IEC 10918-1 -> M_<xx> */ -/* Markers xF0 - xF7 ISO/IEC 10918-3 */ -/* Markers xF7 - xF8 ISO/IEC 14495-1 */ -/* XY=Main/Tile-header:(R:required, N:not_allowed, O:optional, L:last_marker) */ -#define JC_SOC 0x4F /* NN, Start of codestream */ -#define JC_SIZ 0x51 /* RN, Image and tile size */ -#define JC_COD 0x52 /* RO, Codeing style defaulte */ -#define JC_COC 0x53 /* OO, Coding style component */ -#define JC_TLM 0x55 /* ON, Tile part length main header */ -#define JC_PLM 0x57 /* ON, Packet length main header */ -#define JC_PLT 0x58 /* NO, Packet length tile part header */ -#define JC_QCD 0x5C /* RO, Quantization default */ -#define JC_QCC 0x5D /* OO, Quantization component */ -#define JC_RGN 0x5E /* OO, Region of interest */ -#define JC_POD 0x5F /* OO, Progression order default */ -#define JC_PPM 0x60 /* ON, Packed packet headers main header */ -#define JC_PPT 0x61 /* NO, Packet packet headers tile part header */ -#define JC_CME 0x64 /* OO, Comment: "LL E <text>" E=0:binary, E=1:ascii */ -#define JC_SOT 0x90 /* NR, Start of tile */ -#define JC_SOP 0x91 /* NO, Start of packeter default */ -#define JC_EPH 0x92 /* NO, End of packet header */ -#define JC_SOD 0x93 /* NL, Start of data */ -#define JC_EOC 0xD9 /* NN, End of codestream */ -/* }}} */ - -/* {{{ exif_process_COM - Process a COM marker. - We want to print out the marker contents as legible text; - we must guard against random junk and varying newline representations. -*/ -static void exif_process_COM (image_info_type *image_info, uchar *value, int length) -{ - exif_iif_add_tag(image_info, SECTION_COMMENT, "Comment", TAG_COMPUTED_VALUE, TAG_FMT_STRING, length-2, value+2); -} -/* }}} */ - -/* {{{ exif_process_COM - Process a COM marker. - We want to print out the marker contents as legible text; - we must guard against random junk and varying newline representations. -*/ -#ifdef EXIF_JPEG2000 -static void exif_process_CME (image_info_type *image_info, uchar *value, int length) -{ - if (length>3) { - switch(value[2]) { - case 0: - exif_iif_add_tag(image_info, SECTION_COMMENT, "Comment", TAG_COMPUTED_VALUE, TAG_FMT_UNDEFINED, length, value); - break; - case 1: - exif_iif_add_tag(image_info, SECTION_COMMENT, "Comment", TAG_COMPUTED_VALUE, TAG_FMT_STRING, length, value); - break; - default: - php_error(E_NOTICE, "Undefined JPEG2000 comment encoding"); - break; - } - } else { - exif_iif_add_tag(image_info, SECTION_COMMENT, "Comment", TAG_COMPUTED_VALUE, TAG_FMT_UNDEFINED, 0, NULL); - php_error(E_NOTICE, "JPEG2000 comment section to small"); - } -} -#endif -/* }}} */ - -/* {{{ exif_process_SOFn - * Process a SOFn marker. This is useful for the image dimensions */ -static void exif_process_SOFn (uchar *Data, int marker, jpeg_sof_info *result) -{ -/* 0xFF SOSn SectLen(2) Bits(1) Height(2) Width(2) Channels(1) 3*Channels (1) */ - result->bits_per_sample = Data[2]; - result->height = php_jpg_get16(Data+3); - result->width = php_jpg_get16(Data+5); - result->num_components = Data[7]; - -/* switch (marker) { - case M_SOF0: process = "Baseline"; break; - case M_SOF1: process = "Extended sequential"; break; - case M_SOF2: process = "Progressive"; break; - case M_SOF3: process = "Lossless"; break; - case M_SOF5: process = "Differential sequential"; break; - case M_SOF6: process = "Differential progressive"; break; - case M_SOF7: process = "Differential lossless"; break; - case M_SOF9: process = "Extended sequential, arithmetic coding"; break; - case M_SOF10: process = "Progressive, arithmetic coding"; break; - case M_SOF11: process = "Lossless, arithmetic coding"; break; - case M_SOF13: process = "Differential sequential, arithmetic coding"; break; - case M_SOF14: process = "Differential progressive, arithmetic coding"; break; - case M_SOF15: process = "Differential lossless, arithmetic coding"; break; - default: process = "Unknown"; break; - }*/ -} -/* }}} */ - -static int exif_process_IFD_in_JPEG(image_info_type *ImageInfo, char *DirStart, char *OffsetBase, unsigned IFDlength, int sub_section_index TSRMLS_DC); - -/* {{{ exif_get_markername - Get name of marker */ -#ifdef EXIF_DEBUG -static char * exif_get_markername(int marker) -{ - switch(marker) { - case 0xC0: return "SOF0"; - case 0xC1: return "SOF1"; - case 0xC2: return "SOF2"; - case 0xC3: return "SOF3"; - case 0xC4: return "DHT"; - case 0xC5: return "SOF5"; - case 0xC6: return "SOF6"; - case 0xC7: return "SOF7"; - case 0xC9: return "SOF9"; - case 0xCA: return "SOF10"; - case 0xCB: return "SOF11"; - case 0xCD: return "SOF13"; - case 0xCE: return "SOF14"; - case 0xCF: return "SOF15"; - case 0xD8: return "SOI"; - case 0xD9: return "EOI"; - case 0xDA: return "SOS"; - case 0xDB: return "DQT"; - case 0xDC: return "DNL"; - case 0xDD: return "DRI"; - case 0xDE: return "DHP"; - case 0xDF: return "EXP"; - case 0xE0: return "APP0"; - case 0xE1: return "EXIF"; - case 0xE2: return "FPIX"; - case 0xE3: return "APP3"; - case 0xE4: return "APP4"; - case 0xE5: return "APP5"; - case 0xE6: return "APP6"; - case 0xE7: return "APP7"; - case 0xE8: return "APP8"; - case 0xE9: return "APP9"; - case 0xEA: return "APP10"; - case 0xEB: return "APP11"; - case 0xEC: return "APP12"; - case 0xED: return "APP13"; - case 0xEE: return "APP14"; - case 0xEF: return "APP15"; - case 0xF0: return "JPG0"; - case 0xFD: return "JPG13"; - case 0xFE: return "COM"; - case 0x01: return "TEM"; - } - return "Unknown"; -} -#endif -/* }}} */ - -/* {{{ proto string|false exif_tagname(index) - Get headername for index or false if not defined */ -PHP_FUNCTION(exif_tagname) -{ - pval **p_num; - int tag, ac = ZEND_NUM_ARGS(); - char *szTemp; - - if ((ac < 1 || ac > 1) || zend_get_parameters_ex(ac, &p_num) == FAILURE) { - WRONG_PARAM_COUNT; - } - - convert_to_long_ex(p_num); - tag = Z_LVAL_PP(p_num); - szTemp = exif_get_tagname(tag, NULL, 0); - if (tag<0 || !szTemp || !szTemp[0]) { - RETURN_BOOL(FALSE); - } else { - RETURN_STRING(szTemp, 1) - } -} -/* }}} */ - -/* {{{ exif_ifd_make_value - * Create a value for an ifd from an info_data pointer */ -static void* exif_ifd_make_value(image_info_data *info_data, int motorola_intel) { - size_t byte_count; - char *value_ptr, *data_ptr; - int i; - - image_info_value *info_value; - - byte_count = php_tiff_bytes_per_format[info_data->format] * info_data->length; - value_ptr = emalloc(max(byte_count, 4)); - if (!value_ptr) { - EXIF_ERRLOG_EALLOC - return NULL; - } - memset(value_ptr, 0, 4); - if (!info_data->length) { - return value_ptr; - } - if (info_data->format == TAG_FMT_UNDEFINED || info_data->format == TAG_FMT_STRING - || (byte_count>1 && (info_data->format == TAG_FMT_BYTE || info_data->format == TAG_FMT_SBYTE)) - ) { - memmove(value_ptr, info_data->value.s, byte_count); - return value_ptr; - } else if (info_data->format == TAG_FMT_BYTE) { - *value_ptr = info_data->value.u; - return value_ptr; - } else if (info_data->format == TAG_FMT_SBYTE) { - *value_ptr = info_data->value.i; - return value_ptr; - } else { - data_ptr = value_ptr; - for(i=0; i<info_data->length; i++) { - if (info_data->length==1) { - info_value = &info_data->value; - } else { - info_value = &info_data->value.list[i]; - } - switch(info_data->format) { - case TAG_FMT_USHORT: - php_ifd_set16u(data_ptr, info_value->u, motorola_intel); - data_ptr += 2; - break; - case TAG_FMT_ULONG: - php_ifd_set32u(data_ptr, info_value->u, motorola_intel); - data_ptr += 4; - break; - case TAG_FMT_SSHORT: - php_ifd_set16u(data_ptr, info_value->i, motorola_intel); - data_ptr += 2; - break; - case TAG_FMT_SLONG: - php_ifd_set32u(data_ptr, info_value->i, motorola_intel); - data_ptr += 4; - break; - case TAG_FMT_URATIONAL: - php_ifd_set32u(data_ptr, info_value->sr.num, motorola_intel); - php_ifd_set32u(data_ptr+4, info_value->sr.den, motorola_intel); - data_ptr += 8; - break; - case TAG_FMT_SRATIONAL: - php_ifd_set32u(data_ptr, info_value->ur.num, motorola_intel); - php_ifd_set32u(data_ptr+4, info_value->ur.den, motorola_intel); - data_ptr += 8; - break; - case TAG_FMT_SINGLE: - memmove(data_ptr, &info_data->value.f, byte_count); - data_ptr += 4; - break; - case TAG_FMT_DOUBLE: - memmove(data_ptr, &info_data->value.d, byte_count); - data_ptr += 8; - break; - } - } - } - return value_ptr; -} -/* }}} */ - -/* {{{ exif_thumbnail_build - * Check and build thumbnail */ -static void exif_thumbnail_build(image_info_type *ImageInfo) { - size_t new_size, new_move, new_value; - char *new_data; - void *value_ptr; - int i, byte_count; - image_info_list *info_list; - image_info_data *info_data; -#ifdef EXIF_DEBUG - char tagname[64]; -#endif - - if (!ImageInfo->read_thumbnail || !ImageInfo->Thumbnail.offset || !ImageInfo->Thumbnail.size) { - return; /* ignore this call */ - } - switch(ImageInfo->Thumbnail.filetype) { - default: - case IMAGE_FILETYPE_JPEG: - /* done */ - break; - case IMAGE_FILETYPE_TIFF_II: - case IMAGE_FILETYPE_TIFF_MM: - info_list = &ImageInfo->info_list[SECTION_THUMBNAIL]; - new_size = 8 + 2 + info_list->count * 12 + 4; -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "thumbnail: size of signature + directory(%d): 0x%02X", info_list->count, new_size); -#endif - new_value= new_size; /* offset for ifd values outside ifd directory */ - for (i=0; i<info_list->count; i++) { - info_data = &info_list->list[i]; - byte_count = php_tiff_bytes_per_format[info_data->format] * info_data->length; - if (byte_count > 4) { - new_size += byte_count; - } - } - new_move = new_size; - new_data = erealloc(ImageInfo->Thumbnail.data, ImageInfo->Thumbnail.size+new_size); - if (!ImageInfo->Thumbnail.data) { - EXIF_ERRLOG_EALLOC - efree(ImageInfo->Thumbnail.data); - ImageInfo->Thumbnail.data = NULL; - ImageInfo->Thumbnail.size = 0; - return; - } - ImageInfo->Thumbnail.data = new_data; - memmove(ImageInfo->Thumbnail.data + new_move, ImageInfo->Thumbnail.data, ImageInfo->Thumbnail.size); - ImageInfo->Thumbnail.size += new_size; - /* fill in data */ - if (ImageInfo->motorola_intel) { - memmove(new_data, "MM\x00\x2a\x00\x00\x00\x08", 8); - } else { - memmove(new_data, "II\x2a\x00\x08\x00\x00\x00", 8); - } - new_data += 8; - php_ifd_set16u(new_data, info_list->count, ImageInfo->motorola_intel); - new_data += 2; - for (i=0; i<info_list->count; i++) { - info_data = &info_list->list[i]; - byte_count = php_tiff_bytes_per_format[info_data->format] * info_data->length; -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "thumbnail: process tag(x%04X=%s): %s%s (%d bytes)", info_data->tag, exif_get_tagname(info_data->tag, tagname, -12), (info_data->length>1)&&info_data->format!=TAG_FMT_UNDEFINED&&info_data->format!=TAG_FMT_STRING?"ARRAY OF ":"", exif_get_tagformat(info_data->format), byte_count); -#endif - if (info_data->tag==TAG_STRIP_OFFSETS || info_data->tag==TAG_JPEG_INTERCHANGE_FORMAT) { - php_ifd_set16u(new_data + 0, info_data->tag, ImageInfo->motorola_intel); - php_ifd_set16u(new_data + 2, TAG_FMT_ULONG, ImageInfo->motorola_intel); - php_ifd_set32u(new_data + 4, 1, ImageInfo->motorola_intel); - php_ifd_set32u(new_data + 8, new_move, ImageInfo->motorola_intel); - } else { - php_ifd_set16u(new_data + 0, info_data->tag, ImageInfo->motorola_intel); - php_ifd_set16u(new_data + 2, info_data->format, ImageInfo->motorola_intel); - php_ifd_set32u(new_data + 4, info_data->length, ImageInfo->motorola_intel); - value_ptr = exif_ifd_make_value(info_data, ImageInfo->motorola_intel); - if (!value_ptr) { - EXIF_ERRLOG_EALLOC - efree(ImageInfo->Thumbnail.data); - ImageInfo->Thumbnail.data = NULL; - ImageInfo->Thumbnail.size = 0; - return; - } - if (byte_count <= 4) { - memmove(new_data+8, value_ptr, 4); - } else { - php_ifd_set32u(new_data+8, new_value, ImageInfo->motorola_intel); -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "thumbnail: writing with value offset: 0x%04X + 0x%02X", new_value, byte_count); -#endif - memmove(ImageInfo->Thumbnail.data+new_value, value_ptr, byte_count); - new_value += byte_count; - } - efree(value_ptr); - } - new_data += 12; - } - memset(new_data, 0, 4); /* next ifd pointer */ -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "thumbnail: created"); -#endif - break; - } -} -/* }}} */ - -/* {{{ exif_thumbnail_extract - * Grab the thumbnail, corrected */ -static void exif_thumbnail_extract(image_info_type *ImageInfo, char *offset, size_t length) { - /* according to exif2.1, the thumbnail is not supposed to be greater than 64K */ - if (!ImageInfo->read_thumbnail) { - return; /* ignore this call */ - } - if (ImageInfo->Thumbnail.size >= 65536 - || ImageInfo->Thumbnail.size <= 0 - || ImageInfo->Thumbnail.offset <= 0 - ) { - php_error(E_WARNING, "Illegal thumbnail size/offset"); - return; - } - /* Check to make sure we are not going to go past the ExifLength */ - if ((ImageInfo->Thumbnail.offset + ImageInfo->Thumbnail.size) > length) { - EXIF_ERRLOG_THUMBEOF - return; - } - ImageInfo->Thumbnail.data = estrndup(offset + ImageInfo->Thumbnail.offset, ImageInfo->Thumbnail.size); - if (!ImageInfo->Thumbnail.data) { - EXIF_ERRLOG_EALLOC - } - exif_thumbnail_build(ImageInfo); -} -/* }}} */ - -/* {{{ exif_process_undefined - * Copy a string/buffer in Exif header to a character string and return length of allocated buffer if any. */ -static int exif_process_undefined(char **result, char *value, size_t byte_count) { - /* we cannot use strlcpy - here the problem is that we have to copy NUL - * chars up to byte_count, we also have to add a single NUL character to - * force end of string. - * estrndup does not return length - */ - if (byte_count) { - (*result) = estrndup(value, byte_count); /* NULL @ byte_count!!! */ - if (!*result) { - EXIF_ERRLOG_EALLOC - return 0; - } - return byte_count+1; - } - return 0; -} -/* }}} */ - -/* {{{ exif_process_string_raw - * Copy a string in Exif header to a character string returns length of allocated buffer if any. */ -#ifndef HAVE_MBSTRING -static int exif_process_string_raw(char **result, char *value, size_t byte_count) { - /* we cannot use strlcpy - here the problem is that we have to copy NUL - * chars up to byte_count, we also have to add a single NUL character to - * force end of string. - */ - if (byte_count) { - (*result) = emalloc(byte_count+1); - memcpy(*result, value, byte_count); - (*result)[byte_count] = '\0'; - return byte_count+1; - } - return 0; -} -#endif -/* }}} */ - -/* {{{ exif_process_string - * Copy a string in Exif header to a character string and return length of allocated buffer if any. - * In contrast to exif_process_string this function does allways return a string buffer */ -static int exif_process_string(char **result, char *value, size_t byte_count) { - /* we cannot use strlcpy - here the problem is that we cannot use strlen to - * determin length of string and we cannot use strlcpy with len=byte_count+1 - * because then we might get into an EXCEPTION if we exceed an allocated - * memory page...so we use php_strnlen in conjunction with memcpy and add the NUL - * char. - * estrdup would sometimes allocate more memory and does not return length - */ - if ((byte_count=php_strnlen(value, byte_count)) > 0) { - return exif_process_undefined(result, value, byte_count); - } - (*result) = estrndup("", 1); /* force empty string */ - if (!*result) { - EXIF_ERRLOG_EALLOC - return 0; - } - return byte_count+1; -} -/* }}} */ - -/* {{{ exif_process_user_comment - * Process UserComment in IFD. */ -static int exif_process_user_comment(image_info_type *ImageInfo, char **pszInfoPtr, char **pszEncoding, char *szValuePtr, int ByteCount TSRMLS_DC) -{ - int a; - -#ifdef HAVE_MBSTRING - size_t len;; -#endif - - *pszEncoding = NULL; - /* Copy the comment */ - if (ByteCount>=8) { - if (!memcmp(szValuePtr, "UNICODE\0", 8)) { - *pszEncoding = estrdup((const char*)szValuePtr); - szValuePtr = szValuePtr+8; - ByteCount -= 8; -#ifdef HAVE_MBSTRING - if (ImageInfo->motorola_intel) { - *pszInfoPtr = php_mb_convert_encoding(szValuePtr, ByteCount, ImageInfo->encode_unicode, ImageInfo->decode_unicode_be, &len TSRMLS_CC); - } else { - *pszInfoPtr = php_mb_convert_encoding(szValuePtr, ByteCount, ImageInfo->encode_unicode, ImageInfo->decode_unicode_le, &len TSRMLS_CC); - } - return len; -#else - return exif_process_string_raw(pszInfoPtr, szValuePtr, ByteCount); -#endif - } else - if (!memcmp(szValuePtr, "ASCII\0\0\0", 8)) { - *pszEncoding = estrdup((const char*)szValuePtr); - szValuePtr = szValuePtr+8; - ByteCount -= 8; - } else - if (!memcmp(szValuePtr, "JIS\0\0\0\0\0", 8)) { - /* JIS should be tanslated to MB or we leave it to the user - leave it to the user */ - *pszEncoding = estrdup((const char*)szValuePtr); - szValuePtr = szValuePtr+8; - ByteCount -= 8; -#ifdef HAVE_MBSTRING - if (ImageInfo->motorola_intel) { - *pszInfoPtr = php_mb_convert_encoding(szValuePtr, ByteCount, ImageInfo->encode_jis, ImageInfo->decode_jis_be, &len TSRMLS_CC); - } else { - *pszInfoPtr = php_mb_convert_encoding(szValuePtr, ByteCount, ImageInfo->encode_jis, ImageInfo->decode_jis_le, &len TSRMLS_CC); - } - return len; -#else - return exif_process_string_raw(pszInfoPtr, szValuePtr, ByteCount); -#endif - } else - if (!memcmp(szValuePtr, "\0\0\0\0\0\0\0\0", 8)) { - /* 8 NULL means undefined and should be ASCII... */ - *pszEncoding = estrdup("UNDEFINED"); - szValuePtr = szValuePtr+8; - ByteCount -= 8; - } - } - - /* Olympus has this padded with trailing spaces. Remove these first. */ - if (ByteCount>0) { - for (a=ByteCount-1;a && szValuePtr[a]==' ';a--) { - (szValuePtr)[a] = '\0'; - } - } - - /* normal text without encoding */ - exif_process_string(pszInfoPtr, szValuePtr, ByteCount); - return strlen(*pszInfoPtr); -} -/* }}} */ - -/* {{{ exif_process_unicode - * Process unicode field in IFD. */ -static int exif_process_unicode(image_info_type *ImageInfo, xp_field_type *xp_field, int tag, char *szValuePtr, int ByteCount TSRMLS_DC) -{ - xp_field->tag = tag; - - /* Copy the comment */ -#ifdef HAVE_MBSTRING -/* What if MS supports big-endian with XP? */ -/* if (ImageInfo->motorola_intel) { - xp_field->value = php_mb_convert_encoding(szValuePtr, ByteCount, ImageInfo->encode_unicode, ImageInfo->decode_unicode_be, &xp_field->size TSRMLS_CC); - } else { - xp_field->value = php_mb_convert_encoding(szValuePtr, ByteCount, ImageInfo->encode_unicode, ImageInfo->decode_unicode_le, &xp_field->size TSRMLS_CC); - }*/ - xp_field->value = php_mb_convert_encoding(szValuePtr, ByteCount, ImageInfo->encode_unicode, ImageInfo->decode_unicode_le, &xp_field->size TSRMLS_CC); - return xp_field->size; -#else - xp_field->size = exif_process_string_raw(&xp_field->value, szValuePtr, ByteCount); - return xp_field->size; -#endif -} -/* }}} */ - -/* {{{ exif_process_IFD_TAG - * Process one of the nested IFDs directories. */ -static int exif_process_IFD_TAG(image_info_type *ImageInfo, char *dir_entry, char *offset_base, size_t IFDlength, int section_index, int ReadNextIFD TSRMLS_DC) -{ - int l; - int tag, format, components; - char *value_ptr, tagname[64], cbuf[32], *outside=NULL; - size_t byte_count, offset_val, fpos, fgot; - xp_field_type *tmp_xp; - - tag = php_ifd_get16u(dir_entry, ImageInfo->motorola_intel); - format = php_ifd_get16u(dir_entry+2, ImageInfo->motorola_intel); - components = php_ifd_get32u(dir_entry+4, ImageInfo->motorola_intel); - - if (!format || format >= NUM_FORMATS) { - /* (-1) catches illegal zero case as unsigned underflows to positive large. */ - php_error(E_WARNING, "Illegal format code in IFD: 0x%04X", format); - return TRUE; - } - - byte_count = components * php_tiff_bytes_per_format[format]; - - if (byte_count > 4) { - offset_val = php_ifd_get32u(dir_entry+8, ImageInfo->motorola_intel); - /* If its bigger than 4 bytes, the dir entry contains an offset. */ - value_ptr = offset_base+offset_val; - if (offset_val+byte_count > IFDlength || value_ptr < dir_entry) { - /* - // It is important to check for IMAGE_FILETYPE_TIFF - // JPEG does not use absolute pointers instead its pointers are relative to the start - // of the TIFF header in APP1 section. - */ - if (offset_val<0 || offset_val+byte_count>ImageInfo->FileSize || (ImageInfo->FileType!=IMAGE_FILETYPE_TIFF_II && ImageInfo->FileType!=IMAGE_FILETYPE_TIFF_MM)) { - if (value_ptr < dir_entry) { - /* we can read this if offset_val > 0 */ - /* some files have their values in other parts of the file */ - php_error(E_WARNING, "process tag(x%04X=%s): Illegal pointer offset(x%04X < x%04X)", tag, exif_get_tagname(tag, tagname, -12), offset_val, dir_entry); - } else { - /* this is for sure not allowed */ - /* exception are IFD pointers */ - php_error(E_WARNING, "process tag(x%04X=%s): Illegal pointer offset(x%04X + x%04X = x%04X > x%04X)", tag, exif_get_tagname(tag, tagname, -12), offset_val, byte_count, offset_val+byte_count, IFDlength); - } - return TRUE; - } - if (byte_count>sizeof(cbuf)) { - /* mark as outside range and get buffer */ - value_ptr = emalloc(byte_count); - if (!value_ptr) { - EXIF_ERRLOG_EALLOC - return FALSE; - } - outside = value_ptr; - } else { - /* - // in most cases we only access a small range so - // it is faster to use a static buffer there - // BUT it offers also the possibility to have - // pointers read without the need to free them - // explicitley before returning. - */ - value_ptr = cbuf; - } - - fpos = php_stream_tell(ImageInfo->infile); - php_stream_seek(ImageInfo->infile, offset_val, SEEK_SET); - fgot = php_stream_tell(ImageInfo->infile); - if (fgot!=offset_val) { - EFREE_IF(outside); - php_error(E_WARNING, "Wrong file pointer: 0x%08X != 0x08X", fgot, offset_val); - return FALSE; - } - fgot = php_stream_read(ImageInfo->infile, value_ptr, byte_count); - php_stream_seek(ImageInfo->infile, fpos, SEEK_SET); - if (fgot<byte_count) { - EFREE_IF(outside); - EXIF_ERRLOG_FILEEOF - return FALSE; - } - } - } else { - /* 4 bytes or less and value is in the dir entry itself */ - value_ptr = dir_entry+8; - offset_val= value_ptr-offset_base; - } - - ImageInfo->sections_found |= FOUND_ANY_TAG; -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "process tag(x%04X=%s,@x%04X + x%04X(=%d)): %s%s", tag, exif_get_tagname(tag, tagname, -12), offset_val, byte_count, byte_count, (components>1)&&format!=TAG_FMT_UNDEFINED&&format!=TAG_FMT_STRING?"ARRAY OF ":"", format==TAG_FMT_STRING?(value_ptr?value_ptr:"<no data>"):exif_get_tagformat(format)); -#endif - if (section_index==SECTION_THUMBNAIL) { - switch(tag) { - case TAG_IMAGEWIDTH: - case TAG_COMP_IMAGEWIDTH: - ImageInfo->Thumbnail.width = exif_convert_any_to_int(value_ptr, format, ImageInfo->motorola_intel); - break; - - case TAG_IMAGEHEIGHT: - case TAG_COMP_IMAGEHEIGHT: - ImageInfo->Thumbnail.height = exif_convert_any_to_int(value_ptr, format, ImageInfo->motorola_intel); - break; - - case TAG_STRIP_OFFSETS: - case TAG_JPEG_INTERCHANGE_FORMAT: - /* accept both formats */ - ImageInfo->Thumbnail.offset = exif_convert_any_to_int(value_ptr, format, ImageInfo->motorola_intel); - break; - - case TAG_STRIP_BYTE_COUNTS: - if (ImageInfo->FileType == IMAGE_FILETYPE_TIFF_II || ImageInfo->FileType == IMAGE_FILETYPE_TIFF_MM) { - ImageInfo->Thumbnail.filetype = ImageInfo->FileType; - } else { - /* motorola is easier to read */ - ImageInfo->Thumbnail.filetype = IMAGE_FILETYPE_TIFF_MM; - } - ImageInfo->Thumbnail.size = exif_convert_any_to_int(value_ptr, format, ImageInfo->motorola_intel); - break; - - case TAG_JPEG_INTERCHANGE_FORMAT_LEN: - if (ImageInfo->Thumbnail.filetype == IMAGE_FILETYPE_UNKNOWN) { - ImageInfo->Thumbnail.filetype = IMAGE_FILETYPE_JPEG; - ImageInfo->Thumbnail.size = exif_convert_any_to_int(value_ptr, format, ImageInfo->motorola_intel); - } - break; - - } - } else { - switch(tag) { - case TAG_COPYRIGHT: - /* check for "<photographer> NUL <editor> NUL" */ - if (byte_count>1 && (l=php_strnlen(value_ptr, byte_count)) > 0) { - if (l<byte_count-1) { - /* When there are any characters after the first NUL */ - ImageInfo->CopyrightPhotographer = estrdup(value_ptr); - ImageInfo->CopyrightEditor = estrdup(value_ptr+l+1); - ImageInfo->Copyright = emalloc(strlen(value_ptr)+strlen(value_ptr+l+1)+3); - if (!ImageInfo->Copyright) { - EXIF_ERRLOG_EALLOC - } else { - sprintf(ImageInfo->Copyright, "%s, %s", value_ptr, value_ptr+l+1); - } - /* format = TAG_FMT_UNDEFINED; this musn't be ASCII */ - /* but we are not supposed to change this */ - /* keep in mind that image_info does not store editor value */ - } else { - ImageInfo->Copyright = estrdup(value_ptr); - } - } - break; - - case TAG_USERCOMMENT: - ImageInfo->UserCommentLength = exif_process_user_comment(ImageInfo, &(ImageInfo->UserComment), &(ImageInfo->UserCommentEncoding), value_ptr, byte_count TSRMLS_CC); - break; - - case TAG_XP_TITLE: - case TAG_XP_COMMENTS: - case TAG_XP_AUTHOR: - case TAG_XP_KEYWORDS: - case TAG_XP_SUBJECT: - tmp_xp = (xp_field_type*)erealloc(ImageInfo->xp_fields.list, sizeof(xp_field_type)*(ImageInfo->xp_fields.count+1)); - if (!tmp_xp) { - EXIF_ERRLOG_EALLOC - } else { - ImageInfo->sections_found |= FOUND_WINXP; - ImageInfo->xp_fields.list = tmp_xp; - ImageInfo->xp_fields.count++; - exif_process_unicode(ImageInfo, &(ImageInfo->xp_fields.list[ImageInfo->xp_fields.count-1]), tag, value_ptr, byte_count TSRMLS_CC); - } - break; - - case TAG_FNUMBER: - /* Simplest way of expressing aperture, so I trust it the most. - (overwrite previously computd value if there is one) */ - ImageInfo->ApertureFNumber = (float)exif_convert_any_format(value_ptr, format, ImageInfo->motorola_intel); - break; - - case TAG_APERTURE: - case TAG_MAXAPERTURE: - /* More relevant info always comes earlier, so only use this field if we don't - have appropriate aperture information yet. */ - if (ImageInfo->ApertureFNumber == 0) { - ImageInfo->ApertureFNumber - = (float)exp(exif_convert_any_format(value_ptr, format, ImageInfo->motorola_intel)*log(2)*0.5); - } - break; - - case TAG_SHUTTERSPEED: - /* More complicated way of expressing exposure time, so only use - this value if we don't already have it from somewhere else. - SHUTTERSPEED comes after EXPOSURE TIME - */ - if (ImageInfo->ExposureTime == 0) { - ImageInfo->ExposureTime - = (float)(1/exp(exif_convert_any_format(value_ptr, format, ImageInfo->motorola_intel)*log(2))); - } - break; - case TAG_EXPOSURETIME: - ImageInfo->ExposureTime = -1; - break; - - case TAG_COMP_IMAGEWIDTH: - ImageInfo->ExifImageWidth = exif_convert_any_to_int(value_ptr, format, ImageInfo->motorola_intel); - break; - - case TAG_FOCALPLANEXRES: - ImageInfo->FocalplaneXRes = exif_convert_any_format(value_ptr, format, ImageInfo->motorola_intel); - break; - - case TAG_SUBJECT_DISTANCE: - /* Inidcates the distacne the autofocus camera is focused to. - Tends to be less accurate as distance increases. */ - ImageInfo->Distance = (float)exif_convert_any_format(value_ptr, format, ImageInfo->motorola_intel); - break; - - case TAG_FOCALPLANEUNITS: - switch((int)exif_convert_any_format(value_ptr, format, ImageInfo->motorola_intel)) { - case 1: ImageInfo->FocalplaneUnits = 25.4; break; /* inch */ - case 2: - /* According to the information I was using, 2 measn meters. - But looking at the Cannon powershot's files, inches is the only - sensible value. */ - ImageInfo->FocalplaneUnits = 25.4; - break; - - case 3: ImageInfo->FocalplaneUnits = 10; break; /* centimeter */ - case 4: ImageInfo->FocalplaneUnits = 1; break; /* milimeter */ - case 5: ImageInfo->FocalplaneUnits = .001; break; /* micrometer */ - } - break; - - case TAG_EXIF_IFD_POINTER: - case TAG_GPS_IFD_POINTER: - case TAG_INTEROP_IFD_POINTER: - if (ReadNextIFD) { - char *SubdirStart; - int sub_section_index = 0; - switch(tag) { - case TAG_EXIF_IFD_POINTER: -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "found EXIF"); -#endif - ImageInfo->sections_found |= FOUND_EXIF; - sub_section_index = SECTION_EXIF; - break; - case TAG_GPS_IFD_POINTER: -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "found GPS"); -#endif - ImageInfo->sections_found |= FOUND_GPS; - sub_section_index = SECTION_GPS; - break; - case TAG_INTEROP_IFD_POINTER: -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "found INTEROPERABILITY"); -#endif - ImageInfo->sections_found |= FOUND_INTEROP; - sub_section_index = SECTION_INTEROP; - break; - } - SubdirStart = offset_base + php_ifd_get32u(value_ptr, ImageInfo->motorola_intel); - if (SubdirStart < offset_base || SubdirStart > offset_base+IFDlength) { - php_error(E_WARNING, "Illegal IFD Pointer"); - return FALSE; - } - exif_process_IFD_in_JPEG(ImageInfo, SubdirStart, offset_base, IFDlength, sub_section_index TSRMLS_CC); -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "subsection %s done", exif_get_sectionname(sub_section_index)); -#endif - } - } - } - exif_iif_add_tag(ImageInfo, section_index, exif_get_tagname(tag, tagname, sizeof(tagname)), tag, format, components, value_ptr); - EFREE_IF(outside); - return TRUE; -} -/* }}} */ - -/* {{{ exif_process_IFD_in_JPEG - * Process one of the nested IFDs directories. */ -static int exif_process_IFD_in_JPEG(image_info_type *ImageInfo, char *DirStart, char *OffsetBase, unsigned IFDlength, int section_index TSRMLS_DC) -{ - int de; - int NumDirEntries; - int NextDirOffset; - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "exif_process_IFD_in_JPEG(x%04X(=%d))", IFDlength, IFDlength); -#endif - - ImageInfo->sections_found |= FOUND_IFD0; - - NumDirEntries = php_ifd_get16u(DirStart, ImageInfo->motorola_intel); - - if ((DirStart+2+NumDirEntries*12) > (OffsetBase+IFDlength)) { - php_error(E_WARNING, "Illegal directory size: x%04X + 2 + x%04X*12 = x%04X > x%04X", (int)DirStart+2-(int)OffsetBase, NumDirEntries, (int)DirStart+2+NumDirEntries*12-(int)OffsetBase, IFDlength); - return FALSE; - } - - for (de=0;de<NumDirEntries;de++) { - if (!exif_process_IFD_TAG(ImageInfo, DirStart + 2 + 12 * de, - OffsetBase, IFDlength, section_index, 1 TSRMLS_CC)) { - return FALSE; - } - } - /* - * Hack to make it process IDF1 I hope - * There are 2 IDFs, the second one holds the keys (0x0201 and 0x0202) to the thumbnail - */ - NextDirOffset = php_ifd_get32u(DirStart+2+12*de, ImageInfo->motorola_intel); - if (NextDirOffset) { - /* the next line seems false but here IFDlength means length of all IFDs */ - if (OffsetBase + NextDirOffset < OffsetBase || OffsetBase + NextDirOffset > OffsetBase+IFDlength) { - php_error(E_WARNING, "Illegal directory offset"); - return FALSE; - } - /* That is the IFD for the first thumbnail */ -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "expect next IFD to be thumbnail"); -#endif - if (exif_process_IFD_in_JPEG(ImageInfo, OffsetBase + NextDirOffset, OffsetBase, IFDlength, SECTION_THUMBNAIL TSRMLS_CC)) { -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "thumbnail size: 0x%04X", ImageInfo->Thumbnail.size); -#endif - if (ImageInfo->Thumbnail.filetype != IMAGE_FILETYPE_UNKNOWN - && ImageInfo->Thumbnail.size - && ImageInfo->Thumbnail.offset - && ImageInfo->read_thumbnail - ) { - exif_thumbnail_extract(ImageInfo, OffsetBase, IFDlength); - } - return TRUE; - } else { - return FALSE; - } - } - return TRUE; -} -/* }}} */ - -/* {{{ exif_process_TIFF_in_JPEG - Process a TIFF header in a JPEG file -*/ -static void exif_process_TIFF_in_JPEG(image_info_type *ImageInfo, char *CharBuf, unsigned int length TSRMLS_DC) -{ - /* set the thumbnail stuff to nothing so we can test to see if they get set up */ - if (memcmp(CharBuf, "II", 2) == 0) { - ImageInfo->motorola_intel = 0; - } else if (memcmp(CharBuf, "MM", 2) == 0) { - ImageInfo->motorola_intel = 1; - } else { - php_error(E_WARNING, "Invalid TIFF alignment marker."); - return; - } - - /* Check the next two values for correctness. */ - if (php_ifd_get16u(CharBuf+2, ImageInfo->motorola_intel) != 0x2a - || php_ifd_get32u(CharBuf+4, ImageInfo->motorola_intel) != 0x08 - ) { - php_error(E_WARNING, "Invalid TIFF start (1)"); - return; - } - - ImageInfo->sections_found |= FOUND_IFD0; - /* First directory starts at offset 8. Offsets starts at 0. */ - exif_process_IFD_in_JPEG(ImageInfo, CharBuf+8, CharBuf, length/*-14*/, SECTION_IFD0 TSRMLS_CC); - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "exif_process_TIFF_in_JPEG, done"); -#endif - - /* Compute the CCD width, in milimeters. */ - if (ImageInfo->FocalplaneXRes != 0) { - ImageInfo->CCDWidth = (float)(ImageInfo->ExifImageWidth * ImageInfo->FocalplaneUnits / ImageInfo->FocalplaneXRes); - } -} -/* }}} */ - -/* {{{ exif_process_APP1 - Process an JPEG APP1 block marker - Describes all the drivel that most digital cameras include... -*/ -static void exif_process_APP1(image_info_type *ImageInfo, char *CharBuf, unsigned int length TSRMLS_DC) -{ - /* Check the APP1 for Exif Identifier Code */ - static const uchar ExifHeader[] = {0x45, 0x78, 0x69, 0x66, 0x00, 0x00}; - if (memcmp(CharBuf+2, ExifHeader, 6)) { - php_error(E_WARNING, "Incorrect APP1 Exif Identifier Code"); - return; - } - exif_process_TIFF_in_JPEG(ImageInfo, CharBuf + 8, length - 8 TSRMLS_CC); -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "process Exif done"); -#endif -} -/* }}} */ - -/* {{{ exif_process_APP12 - Process an JPEG APP12 block marker used by OLYMPUS -*/ -static void exif_process_APP12(image_info_type *ImageInfo, char *buffer, unsigned int length) -{ - int l1, l2=0; - - if ((l1 = php_strnlen(buffer+2, length-2)) > 0) { - exif_iif_add_tag(ImageInfo, SECTION_APP12, "Company", TAG_NONE, TAG_FMT_STRING, l1, buffer+2); - if (length > 2+l1+1) { - l2 = php_strnlen(buffer+2+l1+1, length-2-l1+1); - exif_iif_add_tag(ImageInfo, SECTION_APP12, "Info", TAG_NONE, TAG_FMT_STRING, l2, buffer+2+l1+1); - } - } -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "process section APP12 with l1=%d, l2=%d done", l1, l2); -#endif -} -/* }}} */ - -/* {{{ exif_scan_JPEG_header - * Parse the marker stream until SOS or EOI is seen; */ -static int exif_scan_JPEG_header(image_info_type *ImageInfo TSRMLS_DC) -{ - int section, sn; - int marker = 0, last_marker = M_PSEUDO, comment_correction=1; - int ll, lh; - uchar *Data; - size_t fpos, size, got, itemlen; - jpeg_sof_info sof_info; - - for(section=0;;section++) { -#ifdef EXIF_DEBUG - fpos = php_stream_tell(ImageInfo->infile); - php_error(E_NOTICE, "needing section %d @ 0x%08X", ImageInfo->file.count, fpos); -#endif - - /* get marker byte, swallowing possible padding */ - /* some software does not count the length bytes of COM section */ - /* one company doing so is very much envolved in JPEG... so we accept too */ - if (last_marker==M_COM && comment_correction) { - comment_correction = 2; - } - do { - if ((marker = php_stream_getc(ImageInfo->infile)) == EOF) { - EXIF_ERRLOG_CORRUPT - return FALSE; - } - if (last_marker==M_COM && comment_correction>0) { - if (marker!=0xFF) { - marker = 0xff; - comment_correction--; - } else { - last_marker = M_PSEUDO; /* stop skipping 0 for M_COM */ - } - } - } while (marker == 0xff); - if (last_marker==M_COM && !comment_correction) { - php_error(E_NOTICE, "Image has corrupt M_COM section: some software set wrong length information"); - } - if (last_marker==M_COM && comment_correction) - return M_EOI; /* ah illegal: char after COM section not 0xFF */ - -#ifdef EXIF_DEBUG - fpos = php_stream_tell(ImageInfo->infile); -#endif - if (marker == 0xff) { - /* 0xff is legal padding, but if we get that many, something's wrong. */ - php_error(E_WARNING, "too many padding bytes!"); - return FALSE; - } - - /* Read the length of the section. */ - lh = php_stream_getc(ImageInfo->infile); - ll = php_stream_getc(ImageInfo->infile); - - itemlen = (lh << 8) | ll; - - if (itemlen < 2) { - EXIF_ERRLOG_CORRUPT - return FALSE; - } - - if ((sn=exif_file_sections_add(ImageInfo, marker, itemlen+1, NULL))==-1) { - EXIF_ERRLOG_EALLOC - return FALSE; - } - Data = ImageInfo->file.list[sn].data; - - /* Store first two pre-read bytes. */ - Data[0] = (uchar)lh; - Data[1] = (uchar)ll; - - got = php_stream_read(ImageInfo->infile, Data+2, itemlen-2); /* Read the whole section. */ - if (got != itemlen-2) { - php_error(E_WARNING, "error reading from file: got=x%04X(=%d) != itemlen-2=x%04X(=%d)", got, got, itemlen-2, itemlen-2); - return FALSE; - } - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "process section(x%02X=%s) @ x%04X + x%04X(=%d)", marker, exif_get_markername(marker), fpos, itemlen, itemlen); -#endif - switch(marker) { - case M_SOS: /* stop before hitting compressed data */ - /* If reading entire image is requested, read the rest of the data. */ - if (ImageInfo->read_all) { - /* Determine how much file is left. */ - fpos = php_stream_tell(ImageInfo->infile); - size = ImageInfo->FileSize - fpos; - if ((sn=exif_file_sections_add(ImageInfo, M_PSEUDO, size, NULL))==-1) { - EXIF_ERRLOG_EALLOC - return FALSE; - } - Data = ImageInfo->file.list[sn].data; - got = php_stream_read(ImageInfo->infile, Data, size); - if (got != size) { - EXIF_ERRLOG_FILEEOF - return FALSE; - } - } - return TRUE; - - case M_EOI: /* in case it's a tables-only JPEG stream */ - php_error(E_WARNING, "No image in jpeg!"); - return (ImageInfo->sections_found&(~FOUND_COMPUTED)) ? TRUE : FALSE; - - case M_COM: /* Comment section */ - exif_process_COM(ImageInfo, (char *)Data, itemlen); - break; - - case M_EXIF: - if (!(ImageInfo->sections_found&FOUND_IFD0)) { - /*ImageInfo->sections_found |= FOUND_EXIF;*/ - /* Seen files from some 'U-lead' software with Vivitar scanner - that uses marker 31 later in the file (no clue what for!) */ - exif_process_APP1(ImageInfo, (char *)Data, itemlen TSRMLS_CC); - } - break; - - case M_APP12: - exif_process_APP12(ImageInfo, (char *)Data, itemlen); - break; - - - case M_SOF0: - case M_SOF1: - case M_SOF2: - case M_SOF3: - case M_SOF5: - case M_SOF6: - case M_SOF7: - case M_SOF9: - case M_SOF10: - case M_SOF11: - case M_SOF13: - case M_SOF14: - case M_SOF15: - exif_process_SOFn(Data, marker, &sof_info); - ImageInfo->Width = sof_info.width; - ImageInfo->Height = sof_info.height; - if (sof_info.num_components == 3) { - ImageInfo->IsColor = 1; - } else { - ImageInfo->IsColor = 0; - } - break; - default: - /* skip any other marker silently. */ - break; - } - - /* keep track of last marker */ - last_marker = marker; - } -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "exif_scan_JPEG_header, done"); -#endif - return TRUE; -} -/* }}} */ - -/* {{{ exif_scan_thumbnail - * scan JPEG in thumbnail (memory) */ -static int exif_scan_thumbnail(image_info_type *ImageInfo) -{ - uchar c, *data = ImageInfo->Thumbnail.data; - int n, marker; - size_t length=2, pos=0; - jpeg_sof_info sof_info; - - if (!data) { - return FALSE; /* nothing to do here */ - } - if (memcmp(data, "\xFF\xD8\xFF", 3)) { - if (!ImageInfo->Thumbnail.width && !ImageInfo->Thumbnail.height) { - php_error(E_WARNING, "Thumbnail is not a jpeg image"); - } - return FALSE; - } - for (;;) { - pos += length; - if (pos>=ImageInfo->Thumbnail.size) - return FALSE; - c = data[pos++]; - if (pos>=ImageInfo->Thumbnail.size) - return FALSE; - if (c != 0xFF) { - return FALSE; - } - n = 8; - while ((c = data[pos++]) == 0xFF && n--) { - if (pos+3>=ImageInfo->Thumbnail.size) - return FALSE; - /* +3 = pos++ of next check when reaching marker + 2 bytes for length */ - } - if (c == 0xFF) - return FALSE; - marker = c; - length = php_jpg_get16(data+pos); - if (pos+length>=ImageInfo->Thumbnail.size) { - return FALSE; - } -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Thumnail: process section(x%02X=%s) @ x%04X + x%04X", marker, exif_get_markername(marker), pos, length); -#endif - switch (marker) { - case M_SOF0: - case M_SOF1: - case M_SOF2: - case M_SOF3: - case M_SOF5: - case M_SOF6: - case M_SOF7: - case M_SOF9: - case M_SOF10: - case M_SOF11: - case M_SOF13: - case M_SOF14: - case M_SOF15: - /* handle SOFn block */ - exif_process_SOFn(data+pos, marker, &sof_info); - ImageInfo->Thumbnail.height = sof_info.height; - ImageInfo->Thumbnail.width = sof_info.width; -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Thumnail: size: %d * %d", sof_info.width, sof_info.height); -#endif - return TRUE; - - case M_SOS: - case M_EOI: - php_error(E_WARNING, "could not compute size of thumbnail"); - return FALSE; - break; - - default: - /* just skip */ - break; - } - } - - php_error(E_WARNING, "could not compute size of thumbnail"); - return FALSE; -} -/* }}} */ - -/* {{{ exif_process_IFD_in_TIFF - * Parse the TIFF header; */ -static int exif_process_IFD_in_TIFF(image_info_type *ImageInfo, size_t dir_offset, int section_index TSRMLS_DC) -{ - int i, sn, num_entries, sub_section_index = 0; - unsigned char *dir_entry; - size_t ifd_size, dir_size, entry_offset, next_offset, entry_length, entry_value=0, fgot; - int entry_tag , entry_type; - - if (ImageInfo->FileSize >= dir_offset+2) { - if ((sn=exif_file_sections_add(ImageInfo, M_PSEUDO, 2, NULL))==-1) { - EXIF_ERRLOG_EALLOC - return FALSE; - } -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Read from TIFF: filesize(x%04X), IFD dir(x%04X + x%04X)", ImageInfo->FileSize, dir_offset, 2); -#endif - php_stream_seek(ImageInfo->infile, dir_offset, SEEK_SET); /* we do not know the order of sections */ - php_stream_read(ImageInfo->infile, ImageInfo->file.list[sn].data, 2); - num_entries = php_ifd_get16u(ImageInfo->file.list[sn].data, ImageInfo->motorola_intel); - dir_size = 2/*num dir entries*/ +12/*length of entry*/*num_entries +4/* offset to next ifd (points to thumbnail or NULL)*/; - if (ImageInfo->FileSize >= dir_offset+dir_size) { -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Read from TIFF: filesize(x%04X), IFD dir(x%04X + x%04X), IFD entries(%d)", ImageInfo->FileSize, dir_offset+2, dir_size-2, num_entries); -#endif - if (exif_file_sections_realloc(ImageInfo, sn, dir_size)) { - return FALSE; - } - php_stream_read(ImageInfo->infile, ImageInfo->file.list[sn].data+2, dir_size-2); - /*php_error(E_NOTICE, "Dump: %s", exif_char_dump(ImageInfo->file.list[sn].data, dir_size, 1));*/ - next_offset = php_ifd_get32u(ImageInfo->file.list[sn].data + dir_size - 4, ImageInfo->motorola_intel); -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Read from TIFF done, next offset x%04X", next_offset); -#endif - /* now we have the directory we can look how long it should be */ - ifd_size = dir_size; - for(i=0;i<num_entries;i++) { - dir_entry = ImageInfo->file.list[sn].data+2+i*12; - entry_tag = php_ifd_get16u(dir_entry+0, ImageInfo->motorola_intel); - entry_type = php_ifd_get16u(dir_entry+2, ImageInfo->motorola_intel); - if (entry_type > NUM_FORMATS) { - php_error(E_WARNING, "Error in TIFF: Illegal format, suppose bytes"); - entry_type = TAG_FMT_BYTE; - } - entry_length = php_ifd_get32u(dir_entry+4, ImageInfo->motorola_intel) * php_tiff_bytes_per_format[entry_type]; - if (entry_length <= 4) { - switch(entry_type) { - case TAG_FMT_USHORT: - entry_value = php_ifd_get16u(dir_entry+8, ImageInfo->motorola_intel); - break; - case TAG_FMT_SSHORT: - entry_value = php_ifd_get16s(dir_entry+8, ImageInfo->motorola_intel); - break; - case TAG_FMT_ULONG: - entry_value = php_ifd_get32u(dir_entry+8, ImageInfo->motorola_intel); - break; - case TAG_FMT_SLONG: - entry_value = php_ifd_get32s(dir_entry+8, ImageInfo->motorola_intel); - break; - } - switch(entry_tag) { - case TAG_IMAGEWIDTH: - case TAG_COMP_IMAGEWIDTH: - ImageInfo->Width = entry_value; - break; - case TAG_IMAGEHEIGHT: - case TAG_COMP_IMAGEHEIGHT: - ImageInfo->Height = entry_value; - break; - case TAG_PHOTOMETRIC_INTERPRETATION: - switch (entry_value) { - case PMI_BLACK_IS_ZERO: - case PMI_WHITE_IS_ZERO: - case PMI_TRANSPARENCY_MASK: - ImageInfo->IsColor = 0; - break; - case PMI_RGB: - case PMI_PALETTE_COLOR: - case PMI_SEPARATED: - case PMI_YCBCR: - case PMI_CIELAB: - ImageInfo->IsColor = 1; - break; - } - break; - } - } else { - entry_offset = php_ifd_get32u(dir_entry+8, ImageInfo->motorola_intel); - /* if entry needs expading ifd cache and entry is at end of current ifd cache. */ - /* otherwise there may be huge holes between two entries */ - if (entry_offset + entry_length > dir_offset + ifd_size - && entry_offset == dir_offset + ifd_size) { - ifd_size = entry_offset + entry_length - dir_offset; -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Correcting: 0x%08X + 0x%08X - 0x%08X", entry_offset, entry_length, dir_offset); -#endif - } - } - } - if (ImageInfo->FileSize >= dir_offset + ImageInfo->file.list[sn].size) { - if (ifd_size > dir_size) { - if (dir_offset + ifd_size > ImageInfo->FileSize) { - php_error(E_WARNING, "Error in TIFF: filesize(x%04X) less than size of IFD(x%04X + x%04X)", ImageInfo->FileSize, dir_offset, ifd_size); - return FALSE; - } - if (exif_file_sections_realloc(ImageInfo, sn, ifd_size)) { - return FALSE; - } - /* read values not stored in directory itself */ -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Read from TIFF: filesize(x%04X), IFD(x%04X + x%04X)", ImageInfo->FileSize, dir_offset, ifd_size); -#endif - php_stream_read(ImageInfo->infile, ImageInfo->file.list[sn].data+dir_size, ifd_size-dir_size); -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Read from TIFF, done"); -#endif - } - /* now process the tags */ - for(i=0;i<num_entries;i++) { - dir_entry = ImageInfo->file.list[sn].data+2+i*12; - entry_tag = php_ifd_get16u(dir_entry+0, ImageInfo->motorola_intel); - entry_type = php_ifd_get16u(dir_entry+2, ImageInfo->motorola_intel); - /*entry_length = php_ifd_get32u(dir_entry+4, ImageInfo->motorola_intel);*/ - if (entry_tag == TAG_EXIF_IFD_POINTER || - entry_tag == TAG_INTEROP_IFD_POINTER || - entry_tag == TAG_GPS_IFD_POINTER - ) { - switch(entry_tag) { - case TAG_EXIF_IFD_POINTER: - ImageInfo->sections_found |= FOUND_EXIF; - sub_section_index = SECTION_EXIF; - break; - case TAG_GPS_IFD_POINTER: - ImageInfo->sections_found |= FOUND_GPS; - sub_section_index = SECTION_GPS; - break; - case TAG_INTEROP_IFD_POINTER: - ImageInfo->sections_found |= FOUND_INTEROP; - sub_section_index = SECTION_INTEROP; - break; - } - entry_offset = php_ifd_get32u(dir_entry+8, ImageInfo->motorola_intel); -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Next IFD %s at x%04X", exif_get_sectionname(sub_section_index), entry_offset); -#endif - exif_process_IFD_in_TIFF(ImageInfo, entry_offset, sub_section_index TSRMLS_CC); -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Next IFD %s done", exif_get_sectionname(sub_section_index)); -#endif - } else { - if (!exif_process_IFD_TAG(ImageInfo, dir_entry, - ImageInfo->file.list[sn].data-dir_offset, - ifd_size, section_index, 0 TSRMLS_CC)) { - return FALSE; - } - } - } - if (next_offset && section_index != SECTION_THUMBNAIL) { - /* this should be a thumbnail IFD */ - /* the thumbnail itself is stored at Tag=StripOffsets */ -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Read next IFD (THUMBNAIL) at x%04X", next_offset); -#endif - exif_process_IFD_in_TIFF(ImageInfo, next_offset, SECTION_THUMBNAIL TSRMLS_CC); -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Read THUMBNAIL @0x%04X + 0x%04X", ImageInfo->Thumbnail.offset, ImageInfo->Thumbnail.size); -#endif - if (ImageInfo->Thumbnail.offset && ImageInfo->Thumbnail.size && ImageInfo->read_thumbnail) { - ImageInfo->Thumbnail.data = emalloc(ImageInfo->Thumbnail.size); - if (!ImageInfo->Thumbnail.data) { - EXIF_ERRLOG_EALLOC - } else { - php_stream_seek(ImageInfo->infile, ImageInfo->Thumbnail.offset, SEEK_SET); - fgot = php_stream_read(ImageInfo->infile, ImageInfo->Thumbnail.data, ImageInfo->Thumbnail.size); - if (fgot < ImageInfo->Thumbnail.size) { - EXIF_ERRLOG_THUMBEOF - } - exif_thumbnail_build(ImageInfo); - } - } -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Read next IFD (THUMBNAIL) done"); -#endif - } - return TRUE; - } else { - php_error(E_WARNING, "2 Error in TIFF: filesize(x%04X) less than size of IFD(x%04X)", ImageInfo->FileSize, dir_offset+ImageInfo->file.list[sn].size); - return FALSE; - } - } else { - php_error(E_WARNING, "Error in TIFF: filesize(x%04X) less than size of IFD dir(x%04X)", ImageInfo->FileSize, dir_offset+dir_size); - return FALSE; - } - } else { - php_error(E_WARNING, "Error in TIFF: filesize(x%04X) less than start of IFD dir(x%04X)", ImageInfo->FileSize, dir_offset+2); - return FALSE; - } -} -/* }}} */ - -/* {{{ exif_scan_FILE_header - * Parse the marker stream until SOS or EOI is seen; */ -static int exif_scan_FILE_header(image_info_type *ImageInfo TSRMLS_DC) -{ - unsigned char file_header[8]; - int ret = FALSE; - - ImageInfo->FileType = IMAGE_FILETYPE_UNKNOWN; - - if (ImageInfo->FileSize >= 2) { - php_stream_seek(ImageInfo->infile, 0, SEEK_SET); - php_stream_read(ImageInfo->infile, file_header, 2); - if ((file_header[0]==0xff) && (file_header[1]==M_SOI)) { - ImageInfo->FileType = IMAGE_FILETYPE_JPEG; - if (exif_scan_JPEG_header(ImageInfo TSRMLS_CC)) { - ret = TRUE; - } else { - php_error(E_WARNING, "Invalid JPEG file: '%s'", ImageInfo->FileName); - } - } else if (ImageInfo->FileSize >= 8) { - php_stream_read(ImageInfo->infile, file_header+2, 6); - if (!memcmp(file_header, "II\x2A\x00", 4)) { - ImageInfo->FileType = IMAGE_FILETYPE_TIFF_II; - ImageInfo->motorola_intel = 0; -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "File(%s) has TIFF/II format", ImageInfo->FileName); -#endif - ImageInfo->sections_found |= FOUND_IFD0; - if (exif_process_IFD_in_TIFF(ImageInfo, - php_ifd_get32u(file_header + 4, ImageInfo->motorola_intel), - SECTION_IFD0 TSRMLS_CC)) { - ret = TRUE; - } else { - php_error(E_WARNING, "Invalid TIFF file: '%s'", ImageInfo->FileName); - } - } - else - if (!memcmp(file_header, "MM\x00\x2a", 4)) { - ImageInfo->FileType = IMAGE_FILETYPE_TIFF_MM; - ImageInfo->motorola_intel = 1; -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "File(%s) has TIFF/MM format", ImageInfo->FileName); -#endif - ImageInfo->sections_found |= FOUND_IFD0; - if (exif_process_IFD_in_TIFF(ImageInfo, - php_ifd_get32u(file_header + 4, ImageInfo->motorola_intel), - SECTION_IFD0 TSRMLS_CC)) { - ret = TRUE; - } else { - php_error(E_WARNING, "Invalid TIFF file: '%s'", ImageInfo->FileName); - } - } else { - php_error(E_WARNING, "File(%s) not supported", ImageInfo->FileName); - return FALSE; - } - } - } else { - php_error(E_WARNING, "File(%s) to small (%d)", ImageInfo->FileName, ImageInfo->FileSize); - } - return ret; -} -/* }}} */ - -/* {{{ exif_discard_imageinfo - Discard data scanned by exif_read_file. -*/ -static int exif_discard_imageinfo(image_info_type *ImageInfo) -{ - int i; - - EFREE_IF(ImageInfo->FileName); - EFREE_IF(ImageInfo->UserComment); - EFREE_IF(ImageInfo->UserCommentEncoding); - EFREE_IF(ImageInfo->Copyright); - EFREE_IF(ImageInfo->CopyrightPhotographer); - EFREE_IF(ImageInfo->CopyrightEditor); - EFREE_IF(ImageInfo->Thumbnail.data); - EFREE_IF(ImageInfo->encode_unicode); - EFREE_IF(ImageInfo->decode_unicode_be); - EFREE_IF(ImageInfo->decode_unicode_le); - EFREE_IF(ImageInfo->encode_jis); - EFREE_IF(ImageInfo->decode_jis_be); - EFREE_IF(ImageInfo->decode_jis_le); - for (i=0; i<ImageInfo->xp_fields.count; i++) { - EFREE_IF(ImageInfo->xp_fields.list[i].value); - } - EFREE_IF(ImageInfo->xp_fields.list); - for (i=0; i<SECTION_COUNT; i++) { - exif_iif_free(ImageInfo, i); - } - exif_file_sections_free(ImageInfo); - memset(ImageInfo, 0, sizeof(*ImageInfo)); - return TRUE; -} -/* }}} */ - -/* {{{ exif_read_file - */ -static int exif_read_file(image_info_type *ImageInfo, char *FileName, int read_thumbnail, int read_all TSRMLS_DC) -{ - int ret; - struct stat st; - - /* Start with an empty image information structure. */ - memset(ImageInfo, 0, sizeof(*ImageInfo)); - - ImageInfo->motorola_intel = -1; /* flag as unknown */ - - ImageInfo->infile = php_stream_open_wrapper(FileName, "rb", STREAM_MUST_SEEK|IGNORE_PATH|ENFORCE_SAFE_MODE, NULL); - if (!ImageInfo->infile) { - php_error(E_WARNING, "Unable to open '%s'", FileName); - return FALSE; - } - - ImageInfo->FileName = php_basename(FileName, strlen(FileName), NULL, 0); - ImageInfo->read_thumbnail = read_thumbnail; - ImageInfo->read_all = read_all; - ImageInfo->Thumbnail.filetype = IMAGE_FILETYPE_UNKNOWN; - - ImageInfo->encode_unicode = estrdup(EXIF_G(encode_unicode)); - ImageInfo->decode_unicode_be = estrdup(EXIF_G(decode_unicode_be)); - ImageInfo->decode_unicode_le = estrdup(EXIF_G(decode_unicode_le)); - ImageInfo->encode_jis = estrdup(EXIF_G(encode_jis)); - ImageInfo->decode_jis_be = estrdup(EXIF_G(decode_jis_be)); - ImageInfo->decode_jis_le = estrdup(EXIF_G(decode_jis_le)); - - if (php_stream_is(ImageInfo->infile, PHP_STREAM_IS_STDIO)) { - if (VCWD_STAT(FileName, &st) >= 0) { - /* Store file date/time. */ - ImageInfo->FileDateTime = st.st_mtime; - ImageInfo->FileSize = st.st_size; - /*php_error(E_NOTICE, "open stream is file: %d", ImageInfo->FileSize);*/ - } - } else { - if (!ImageInfo->FileSize) { - php_stream_seek(ImageInfo->infile, 0, SEEK_END); - ImageInfo->FileSize = php_stream_tell(ImageInfo->infile); - php_stream_seek(ImageInfo->infile, 0, SEEK_SET); - } - } - - /* Scan the JPEG headers. */ - ret = exif_scan_FILE_header(ImageInfo TSRMLS_CC); - - php_stream_close(ImageInfo->infile); - return ret; -} -/* }}} */ - -/* {{{ proto array|false exif_read_data(string filename [, sections_needed [, sub_arrays[, read_thumbnail]]]) - Reads header data from the JPEG/TIFF image filename and optionally reads the internal thumbnails */ -PHP_FUNCTION(exif_read_data) -{ - pval **p_name, **p_sections_needed, **p_sub_arrays, **p_read_thumbnail, **p_read_all; - int i, ac = ZEND_NUM_ARGS(), ret, sections_needed=0, sub_arrays=0, read_thumbnail=0, read_all=0; - image_info_type ImageInfo; - char tmp[64], *sections_str, *s; - - memset(&ImageInfo, 0, sizeof(ImageInfo)); - - if ((ac < 1 || ac > 4) || zend_get_parameters_ex(ac, &p_name, &p_sections_needed, &p_sub_arrays, &p_read_thumbnail, &p_read_all) == FAILURE) { - WRONG_PARAM_COUNT; - } - - convert_to_string_ex(p_name); - - if(ac >= 2) { - convert_to_string_ex(p_sections_needed); - sections_str = emalloc(strlen(Z_STRVAL_PP(p_sections_needed))+3); - if (!sections_str) { - EXIF_ERRLOG_EALLOC - RETURN_FALSE; - } - sprintf(sections_str, ",%s,", Z_STRVAL_PP(p_sections_needed)); - /* sections_str DOES start with , and SPACES are NOT allowed in names */ - s = sections_str; - while(*++s) { - if(*s==' ') { - *s = ','; - } - } - for (i=0; i<SECTION_COUNT; i++) { - sprintf(tmp, ",%s,", exif_get_sectionname(i)); - if (strstr(sections_str, tmp)) { - sections_needed |= 1<<i; - } - } - EFREE_IF(sections_str); - /* now see what we need */ -#ifdef EXIF_DEBUG - sections_str = exif_get_sectionlist(sections_needed); - if (!sections_str) { - RETURN_FALSE; - } - php_error(E_NOTICE, "Sections needed: %s", sections_str[0] ? sections_str : "None"); - EFREE_IF(sections_str); -#endif - } - if(ac >= 3) { - convert_to_long_ex(p_sub_arrays); - sub_arrays = Z_LVAL_PP(p_sub_arrays); - } - if(ac >= 4) { - convert_to_long_ex(p_read_thumbnail); - read_thumbnail = Z_LVAL_PP(p_read_thumbnail); - } - if(ac >= 5) { - convert_to_long_ex(p_read_all); - read_all = Z_LVAL_PP(p_read_all); - } - /* parameters 3,4 will be working in later versions.... */ - read_all = 0; /* just to make function work for 4.2 tree */ - - ret = exif_read_file(&ImageInfo, Z_STRVAL_PP(p_name), read_thumbnail, read_all TSRMLS_CC); - - sections_str = exif_get_sectionlist(ImageInfo.sections_found); - -#ifdef EXIF_DEBUG - if (sections_str) - php_error(E_NOTICE, "sections found: %s", sections_str[0] ? sections_str : "None"); -#endif - - ImageInfo.sections_found |= FOUND_COMPUTED;/* do not inform about in debug*/ - - if (ret==FALSE || (sections_needed && !(sections_needed&ImageInfo.sections_found)) || array_init(return_value) == FAILURE) { - /* array_init must be checked at last! otherwise the array must be freed if a later test fails. */ - exif_discard_imageinfo(&ImageInfo); - EFREE_IF(sections_str); - RETURN_FALSE; - } - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "generate section FILE"); -#endif - - /* now we can add our information */ - exif_iif_add_str(&ImageInfo, SECTION_FILE, "FileName", ImageInfo.FileName); - exif_iif_add_int(&ImageInfo, SECTION_FILE, "FileDateTime", ImageInfo.FileDateTime); - exif_iif_add_int(&ImageInfo, SECTION_FILE, "FileSize", ImageInfo.FileSize); - exif_iif_add_int(&ImageInfo, SECTION_FILE, "FileType", ImageInfo.FileType); - exif_iif_add_str(&ImageInfo, SECTION_FILE, "SectionsFound", sections_str ? sections_str : "NONE"); - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "generate section COMPUTED"); -#endif - - if (ImageInfo.Width>0 && ImageInfo.Height>0) { - exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "html", "width=\"%d\" height=\"%d\"", ImageInfo.Width, ImageInfo.Height); - exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Height", ImageInfo.Height); - exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Width", ImageInfo.Width); - } - exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "IsColor", ImageInfo.IsColor); - if (ImageInfo.motorola_intel != -1) { - exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "ByteOrderMotorola", ImageInfo.motorola_intel); - } - if (ImageInfo.FocalLength) { - exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "FocalLength", "%4.1fmm", ImageInfo.FocalLength); - if(ImageInfo.CCDWidth) { - exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "35mmFocalLength", "%dmm", (int)(ImageInfo.FocalLength/ImageInfo.CCDWidth*35+0.5)); - } - } - if(ImageInfo.CCDWidth) { - exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "CCDWidth", "%dmm", (int)ImageInfo.CCDWidth); - } - if(ImageInfo.ExposureTime>0) { - if(ImageInfo.ExposureTime <= 0.5) { - exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "ExposureTime", "%0.3f s (1/%d)", ImageInfo.ExposureTime, (int)(0.5 + 1/ImageInfo.ExposureTime)); - } else { - exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "ExposureTime", "%0.3f s", ImageInfo.ExposureTime); - } - } - if(ImageInfo.ApertureFNumber) { - exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "ApertureFNumber", "f/%.1f", ImageInfo.ApertureFNumber); - } - if(ImageInfo.Distance) { - if(ImageInfo.Distance<0) { - exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "FocusDistance", "Infinite"); - } else { - exif_iif_add_fmt(&ImageInfo, SECTION_COMPUTED, "FocusDistance", "%0.2fm", ImageInfo.Distance); - } - } - if (ImageInfo.UserComment) { - exif_iif_add_buffer(&ImageInfo, SECTION_COMPUTED, "UserComment", ImageInfo.UserCommentLength, ImageInfo.UserComment); - if (ImageInfo.UserCommentEncoding && strlen(ImageInfo.UserCommentEncoding)) { - exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "UserCommentEncoding", ImageInfo.UserCommentEncoding); - } - } - - exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "Copyright", ImageInfo.Copyright); - exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "Copyright.Photographer", ImageInfo.CopyrightPhotographer); - exif_iif_add_str(&ImageInfo, SECTION_COMPUTED, "Copyright.Editor", ImageInfo.CopyrightEditor); - - for (i=0; i<ImageInfo.xp_fields.count; i++) { - exif_iif_add_str(&ImageInfo, SECTION_WINXP, exif_get_tagname(ImageInfo.xp_fields.list[i].tag, NULL, 0), ImageInfo.xp_fields.list[i].value); - } - if (ImageInfo.Thumbnail.size) { - if (read_thumbnail) { - /* not exif_iif_add_str : this is a buffer */ - exif_iif_add_tag(&ImageInfo, SECTION_THUMBNAIL, "THUMBNAIL", TAG_NONE, TAG_FMT_UNDEFINED, ImageInfo.Thumbnail.size, ImageInfo.Thumbnail.data); - } - if (!ImageInfo.Thumbnail.width || !ImageInfo.Thumbnail.height) { - /* try to evaluate if thumbnail data is present */ - exif_scan_thumbnail(&ImageInfo); - } - } - if (ImageInfo.Thumbnail.width && ImageInfo.Thumbnail.height) { - exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Thumbnail.Height", ImageInfo.Thumbnail.height); - exif_iif_add_int(&ImageInfo, SECTION_COMPUTED, "Thumbnail.Width", ImageInfo.Thumbnail.width); - } - EFREE_IF(sections_str); - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "adding image infos"); -#endif - - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_FILE); - add_assoc_image_info(return_value, 1, &ImageInfo, SECTION_COMPUTED); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_ANY_TAG); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_IFD0); - add_assoc_image_info(return_value, 1, &ImageInfo, SECTION_THUMBNAIL); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_COMMENT); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_EXIF); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_GPS); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_INTEROP); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_FPIX); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_APP12); - add_assoc_image_info(return_value, sub_arrays, &ImageInfo, SECTION_WINXP); - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Discarding info"); -#endif - - exif_discard_imageinfo(&ImageInfo); - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "read_exif_data done"); -#endif -} -/* }}} */ - -/* {{{ proto string|false exif_thumbnail(string filename [, &width, &height]) - Reads the embedded thumbnail */ -PHP_FUNCTION(exif_thumbnail) -{ - zval **p_name, **p_width, **p_height; - int ret, arg_c = ZEND_NUM_ARGS(); - image_info_type ImageInfo; - - memset(&ImageInfo, 0, sizeof(ImageInfo)); - - if ((arg_c != 1 && arg_c != 3) || zend_get_parameters_ex(arg_c, &p_name, &p_width, &p_height) == FAILURE) { - WRONG_PARAM_COUNT; - } - - convert_to_string_ex(p_name); - if (arg_c == 3) { - zval_dtor(*p_width); - zval_dtor(*p_height); - } - - ret = exif_read_file(&ImageInfo, Z_STRVAL_PP(p_name), 1, 0 TSRMLS_CC); - if (ret==FALSE) { - exif_discard_imageinfo(&ImageInfo); - RETURN_FALSE; - } - - if (!ImageInfo.Thumbnail.data || !ImageInfo.Thumbnail.size) { -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "No thumbnail data %d %d, %d x %d", ImageInfo.Thumbnail.data, ImageInfo.Thumbnail.size, ImageInfo.Thumbnail.width, ImageInfo.Thumbnail.height); -#endif - if (arg_c == 3) { - ZVAL_LONG(*p_width, ImageInfo.Thumbnail.width); - ZVAL_LONG(*p_height, ImageInfo.Thumbnail.height); - } - exif_discard_imageinfo(&ImageInfo); - RETURN_FALSE; - } - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Returning thumbnail(%d)", ImageInfo.Thumbnail.size); -#endif - - ZVAL_STRINGL(return_value, ImageInfo.Thumbnail.data, ImageInfo.Thumbnail.size, 1); - if (arg_c == 3) { - if (!ImageInfo.Thumbnail.width || !ImageInfo.Thumbnail.height) { - exif_scan_thumbnail(&ImageInfo); - } - ZVAL_LONG(*p_width, ImageInfo.Thumbnail.width); - ZVAL_LONG(*p_height, ImageInfo.Thumbnail.height); - } - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "Discarding info"); -#endif - - exif_discard_imageinfo(&ImageInfo); - -#ifdef EXIF_DEBUG - php_error(E_NOTICE, "exif_thumbnail done"); -#endif -} -/* }}} */ - -/* {{{ proto long exif_imagetype(string imagefile) - Get the type of an image */ -PHP_FUNCTION(exif_imagetype) -{ - zval **arg1; - php_stream * stream; - int itype = 0; - - if (ZEND_NUM_ARGS() != 1) - WRONG_PARAM_COUNT; - - if (zend_get_parameters_ex(1, &arg1) == FAILURE) - WRONG_PARAM_COUNT; - - stream = php_stream_open_wrapper(Z_STRVAL_PP(arg1), "rb", IGNORE_PATH|ENFORCE_SAFE_MODE|REPORT_ERRORS, NULL); - - if (stream == NULL) { - RETURN_FALSE; - } - - itype = itype = php_getimagetype(stream, NULL TSRMLS_CC); - - php_stream_close(stream); - - if (itype == IMAGE_FILETYPE_UNKNOWN) { - RETURN_FALSE; - } else { - ZVAL_LONG(return_value, itype); - } -} -/* }}} */ - -#endif - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - * vim600: sw=4 ts=4 tw=78 fdm=marker - * vim<600: sw=4 ts=4 tw=78 - */ - |