git.m6w6.name Git - m6w6/ext-http/blob - http_deflatestream_object.c

   1 /*
   2     +--------------------------------------------------------------------+
   3     | PECL :: http                                                       |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted provided that the conditions mentioned |
   7     | in the accompanying LICENSE file are met.                          |
   8     +--------------------------------------------------------------------+
   9     | Copyright (c) 2004-2005, Michael Wallner <mike@php.net>            |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 /* $Id$ */
  14
  15
  16 #ifdef HAVE_CONFIG_H
  17 #       include "config.h"
  18 #endif
  19
  20 #define HTTP_WANT_ZLIB
  21 #include "php_http.h"
  22
  23 #if defined(ZEND_ENGINE_2) && defined(HTTP_HAVE_ZLIB)
  24
  25 #include "php_http_api.h"
  26 #include "php_http_encoding_api.h"
  27 #include "php_http_exception_object.h"
  28 #include "php_http_deflatestream_object.h"
  29
  30 #define HTTP_BEGIN_ARGS(method, ret_ref, req_args)      HTTP_BEGIN_ARGS_EX(HttpDeflateStream, method, ret_ref, req_args)
  31 #define HTTP_EMPTY_ARGS(method, ret_ref)                        HTTP_EMPTY_ARGS_EX(HttpDeflateStream, method, ret_ref)
  32 #define HTTP_DEFLATE_ME(method, visibility)                     PHP_ME(HttpDeflateStream, method, HTTP_ARGS(HttpDeflateStream, method), visibility)
  33
  34 HTTP_BEGIN_ARGS(__construct, 0, 0)
  35         HTTP_ARG_VAL(flags, 0)
  36 HTTP_END_ARGS;
  37
  38 HTTP_BEGIN_ARGS(update, 0, 1)
  39         HTTP_ARG_VAL(data, 0)
  40 HTTP_END_ARGS;
  41
  42 HTTP_BEGIN_ARGS(flush, 0, 0)
  43         HTTP_ARG_VAL(data, 0)
  44 HTTP_END_ARGS;
  45
  46 HTTP_BEGIN_ARGS(finish, 0, 0)
  47         HTTP_ARG_VAL(data, 0)
  48 HTTP_END_ARGS;
  49
  50 #define http_deflatestream_object_declare_default_properties() _http_deflatestream_object_declare_default_properties(TSRMLS_C)
  51 static inline void _http_deflatestream_object_declare_default_properties(TSRMLS_D);
  52
  53 zend_class_entry *http_deflatestream_object_ce;
  54 zend_function_entry http_deflatestream_object_fe[] = {
  55         HTTP_DEFLATE_ME(__construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
  56         HTTP_DEFLATE_ME(update, ZEND_ACC_PUBLIC)
  57         HTTP_DEFLATE_ME(flush, ZEND_ACC_PUBLIC)
  58         HTTP_DEFLATE_ME(finish, ZEND_ACC_PUBLIC)
  59
  60         EMPTY_FUNCTION_ENTRY
  61 };
  62 static zend_object_handlers http_deflatestream_object_handlers;
  63
  64 PHP_MINIT_FUNCTION(http_deflatestream_object)
  65 {
  66         HTTP_REGISTER_CLASS_EX(HttpDeflateStream, http_deflatestream_object, NULL, 0);
  67         http_deflatestream_object_handlers.clone_obj = _http_deflatestream_object_clone_obj;
  68         return SUCCESS;
  69 }
  70
  71 zend_object_value _http_deflatestream_object_new(zend_class_entry *ce TSRMLS_DC)
  72 {
  73         return http_deflatestream_object_new_ex(ce, NULL, NULL);
  74 }
  75
  76 zend_object_value _http_deflatestream_object_new_ex(zend_class_entry *ce, http_encoding_stream *s, http_deflatestream_object **ptr TSRMLS_DC)
  77 {
  78         zend_object_value ov;
  79         http_deflatestream_object *o;
  80
  81         o = ecalloc(1, sizeof(http_deflatestream_object));
  82         o->zo.ce = ce;
  83
  84         if (ptr) {
  85                 *ptr = o;
  86         }
  87
  88         if (s) {
  89                 o->stream = s;
  90         }
  91
  92         ALLOC_HASHTABLE(OBJ_PROP(o));
  93         zend_hash_init(OBJ_PROP(o), 0, NULL, ZVAL_PTR_DTOR, 0);
  94
  95         ov.handle = putObject(http_deflatestream_object, o);
  96         ov.handlers = &http_deflatestream_object_handlers;
  97
  98         return ov;
  99 }
 100
 101 zend_object_value _http_deflatestream_object_clone_obj(zval *this_ptr TSRMLS_DC)
 102 {
 103         http_encoding_stream *s;
 104         getObject(http_deflatestream_object, obj);
 105
 106         s = ecalloc(1, sizeof(http_encoding_stream));
 107         s->flags = obj->stream->flags;
 108         deflateCopy(&s->stream, &obj->stream->stream);
 109         s->stream.opaque = phpstr_dup(s->stream.opaque);
 110
 111         return http_deflatestream_object_new_ex(Z_OBJCE_P(this_ptr), s, NULL);
 112 }
 113
 114 static inline void _http_deflatestream_object_declare_default_properties(TSRMLS_D)
 115 {
 116         zend_class_entry *ce = http_deflatestream_object_ce;
 117
 118 #ifndef WONKY
 119         DCL_CONST(long, "TYPE_GZIP", HTTP_DEFLATE_TYPE_GZIP);
 120         DCL_CONST(long, "TYPE_ZLIB", HTTP_DEFLATE_TYPE_ZLIB);
 121         DCL_CONST(long, "TYPE_RAW", HTTP_DEFLATE_TYPE_RAW);
 122         DCL_CONST(long, "LEVEL_DEF", HTTP_DEFLATE_LEVEL_DEF);
 123         DCL_CONST(long, "LEVEL_MIN", HTTP_DEFLATE_LEVEL_MIN);
 124         DCL_CONST(long, "LEVEL_MAX", HTTP_DEFLATE_LEVEL_MAX);
 125 #endif
 126 }
 127
 128 void _http_deflatestream_object_free(zend_object *object TSRMLS_DC)
 129 {
 130         http_deflatestream_object *o = (http_deflatestream_object *) object;
 131
 132         if (OBJ_PROP(o)) {
 133                 zend_hash_destroy(OBJ_PROP(o));
 134                 FREE_HASHTABLE(OBJ_PROP(o));
 135         }
 136         if (o->stream) {
 137                 http_encoding_deflate_stream_free(&o->stream);
 138         }
 139         efree(o);
 140 }
 141
 142 /* {{{ proto void HttpDeflateStream::__construct([int flags = 0])
 143  *
 144  * Creates a new HttpDeflateStream object instance.
 145  *
 146  * Accepts an optional int parameter specifying how to initialize the deflate stream.
 147  */
 148 PHP_METHOD(HttpDeflateStream, __construct)
 149 {
 150         long flags = 0;
 151
 152         SET_EH_THROW_HTTP();
 153         if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &flags)) {
 154                 getObject(http_deflatestream_object, obj);
 155
 156                 if (!obj->stream) {
 157                         obj->stream = http_encoding_deflate_stream_init(NULL, flags);
 158                 } else {
 159                         http_error_ex(HE_WARNING, HTTP_E_ENCODING, "HttpDeflateStream cannot be initialized twice");
 160                 }
 161         }
 162         SET_EH_NORMAL();
 163 }
 164 /* }}} */
 165
 166 /* {{{ proto string HttpDeflateStream::update(string data)
 167  *
 168  * Passes more data through the deflate stream.
 169  *
 170  * Expects a string parameter containing (a part of) the data to deflate.
 171  *
 172  * Returns deflated data on success or FALSE on failure.
 173  */
 174 PHP_METHOD(HttpDeflateStream, update)
 175 {
 176         int data_len;
 177         size_t encoded_len = 0;
 178         char *data, *encoded = NULL;
 179         getObject(http_deflatestream_object, obj);
 180
 181         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &data, &data_len)) {
 182                 RETURN_FALSE;
 183         }
 184
 185         if (!obj->stream && !(obj->stream = http_encoding_deflate_stream_init(NULL, 0))) {
 186                 RETURN_FALSE;
 187         }
 188
 189         if (SUCCESS == http_encoding_deflate_stream_update(obj->stream, data, data_len, &encoded, &encoded_len)) {
 190                 RETURN_STRINGL(encoded, encoded_len, 0);
 191         } else {
 192                 RETURN_FALSE;
 193         }
 194 }
 195 /* }}} */
 196
 197 /* {{{ proto string HttpDeflateStream::flush([string data])
 198  *
 199  * Flushes the deflate stream.
 200  *
 201  * Returns some deflated data as string on success or FALSE on failure.
 202  */
 203 PHP_METHOD(HttpDeflateStream, flush)
 204 {
 205         int data_len = 0;
 206         size_t updated_len = 0, encoded_len = 0;
 207         char *updated = NULL, *encoded = NULL, *data = NULL;
 208         getObject(http_deflatestream_object, obj);
 209
 210         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 211                 RETURN_FALSE;
 212         }
 213
 214         if (!obj->stream && !(obj->stream = http_encoding_deflate_stream_init(NULL, 0))) {
 215                 RETURN_FALSE;
 216         }
 217
 218         if (data_len) {
 219                 if (SUCCESS != http_encoding_deflate_stream_update(obj->stream, data, data_len, &updated, &updated_len)) {
 220                         RETURN_FALSE;
 221                 }
 222         }
 223
 224         if (SUCCESS == http_encoding_deflate_stream_flush(obj->stream, &encoded, &encoded_len)) {
 225                 if (updated_len) {
 226                         updated = erealloc(updated, updated_len + encoded_len + 1);
 227                         updated[updated_len + encoded_len] = '\0';
 228                         memcpy(updated + updated_len, encoded, encoded_len);
 229                         STR_FREE(encoded);
 230                         updated_len += encoded_len;
 231                         RETURN_STRINGL(updated, updated_len, 0);
 232                 } else {
 233                         RETVAL_STRINGL(encoded, encoded_len, 0);
 234                 }
 235         } else {
 236                 RETVAL_FALSE;
 237         }
 238         STR_FREE(updated);
 239 }
 240 /* }}} */
 241
 242 /* {{{ proto string HttpDeflateStream::finish([string data])
 243  *
 244  * Finalizes the deflate stream.  The deflate stream can be reused after finalizing.
 245  *
 246  * Returns the final part of deflated data.
 247  */
 248 PHP_METHOD(HttpDeflateStream, finish)
 249 {
 250         int data_len = 0;
 251         size_t updated_len = 0, encoded_len = 0;
 252         char *updated = NULL, *encoded = NULL, *data = NULL;
 253         getObject(http_deflatestream_object, obj);
 254
 255         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 256                 RETURN_FALSE;
 257         }
 258
 259         if (!obj->stream && !(obj->stream = http_encoding_deflate_stream_init(NULL, 0))) {
 260                 RETURN_FALSE;
 261         }
 262
 263         if (data_len) {
 264                 if (SUCCESS != http_encoding_deflate_stream_update(obj->stream, data, data_len, &updated, &updated_len)) {
 265                         RETURN_FALSE;
 266                 }
 267         }
 268
 269         if (SUCCESS == http_encoding_deflate_stream_finish(obj->stream, &encoded, &encoded_len)) {
 270                 if (updated_len) {
 271                         updated = erealloc(updated, updated_len + encoded_len + 1);
 272                         updated[updated_len + encoded_len] = '\0';
 273                         memcpy(updated + updated_len, encoded, encoded_len);
 274                         STR_FREE(encoded);
 275                         updated_len += encoded_len;
 276                         RETVAL_STRINGL(updated, updated_len, 0);
 277                 } else {
 278                         STR_FREE(updated);
 279                         RETVAL_STRINGL(encoded, encoded_len, 0);
 280                 }
 281         } else {
 282                 STR_FREE(updated);
 283                 RETVAL_FALSE;
 284         }
 285
 286         http_encoding_deflate_stream_dtor(obj->stream);
 287         http_encoding_deflate_stream_init(obj->stream, obj->stream->flags);
 288 }
 289 /* }}} */
 290
 291
 292 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_ZLIB*/
 293
 294 /*
 295  * Local variables:
 296  * tab-width: 4
 297  * c-basic-offset: 4
 298  * End:
 299  * vim600: noet sw=4 ts=4 fdm=marker
 300  * vim<600: noet sw=4 ts=4
 301  */
 302