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) 2004-2006, Michael Wallner <mike@php.net>            |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 /* $Id$ */
  14
  15 #define HTTP_WANT_ZLIB
  16 #include "php_http.h"
  17
  18 #if defined(ZEND_ENGINE_2) && defined(HTTP_HAVE_ZLIB)
  19
  20 #include "php_http_api.h"
  21 #include "php_http_encoding_api.h"
  22 #include "php_http_exception_object.h"
  23 #include "php_http_deflatestream_object.h"
  24
  25 #define HTTP_BEGIN_ARGS(method, req_args)       HTTP_BEGIN_ARGS_EX(HttpDeflateStream, method, 0, req_args)
  26 #define HTTP_EMPTY_ARGS(method)                         HTTP_EMPTY_ARGS_EX(HttpDeflateStream, method, 0)
  27 #define HTTP_DEFLATE_ME(method, visibility)     PHP_ME(HttpDeflateStream, method, HTTP_ARGS(HttpDeflateStream, method), visibility)
  28
  29 HTTP_BEGIN_ARGS(__construct, 0)
  30         HTTP_ARG_VAL(flags, 0)
  31 HTTP_END_ARGS;
  32
  33 HTTP_BEGIN_ARGS(update, 1)
  34         HTTP_ARG_VAL(data, 0)
  35 HTTP_END_ARGS;
  36
  37 HTTP_BEGIN_ARGS(flush, 0)
  38         HTTP_ARG_VAL(data, 0)
  39 HTTP_END_ARGS;
  40
  41 HTTP_BEGIN_ARGS(finish, 0)
  42         HTTP_ARG_VAL(data, 0)
  43 HTTP_END_ARGS;
  44
  45 #define OBJ_PROP_CE http_deflatestream_object_ce
  46 zend_class_entry *http_deflatestream_object_ce;
  47 zend_function_entry http_deflatestream_object_fe[] = {
  48         HTTP_DEFLATE_ME(__construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
  49         HTTP_DEFLATE_ME(update, ZEND_ACC_PUBLIC)
  50         HTTP_DEFLATE_ME(flush, ZEND_ACC_PUBLIC)
  51         HTTP_DEFLATE_ME(finish, ZEND_ACC_PUBLIC)
  52
  53         EMPTY_FUNCTION_ENTRY
  54 };
  55 static zend_object_handlers http_deflatestream_object_handlers;
  56
  57 PHP_MINIT_FUNCTION(http_deflatestream_object)
  58 {
  59         HTTP_REGISTER_CLASS_EX(HttpDeflateStream, http_deflatestream_object, NULL, 0);
  60         http_deflatestream_object_handlers.clone_obj = _http_deflatestream_object_clone_obj;
  61
  62 #ifndef WONKY
  63         DCL_CONST(long, "TYPE_GZIP", HTTP_DEFLATE_TYPE_GZIP);
  64         DCL_CONST(long, "TYPE_ZLIB", HTTP_DEFLATE_TYPE_ZLIB);
  65         DCL_CONST(long, "TYPE_RAW", HTTP_DEFLATE_TYPE_RAW);
  66         DCL_CONST(long, "LEVEL_DEF", HTTP_DEFLATE_LEVEL_DEF);
  67         DCL_CONST(long, "LEVEL_MIN", HTTP_DEFLATE_LEVEL_MIN);
  68         DCL_CONST(long, "LEVEL_MAX", HTTP_DEFLATE_LEVEL_MAX);
  69         DCL_CONST(long, "STRATEGY_DEF", HTTP_DEFLATE_STRATEGY_DEF);
  70         DCL_CONST(long, "STRATEGY_FILT", HTTP_DEFLATE_STRATEGY_FILT);
  71         DCL_CONST(long, "STRATEGY_HUFF", HTTP_DEFLATE_STRATEGY_HUFF);
  72         DCL_CONST(long, "STRATEGY_RLE", HTTP_DEFLATE_STRATEGY_RLE);
  73         DCL_CONST(long, "STRATEGY_FIXED", HTTP_DEFLATE_STRATEGY_FIXED);
  74 #endif
  75
  76         return SUCCESS;
  77 }
  78
  79 zend_object_value _http_deflatestream_object_new(zend_class_entry *ce TSRMLS_DC)
  80 {
  81         return http_deflatestream_object_new_ex(ce, NULL, NULL);
  82 }
  83
  84 zend_object_value _http_deflatestream_object_new_ex(zend_class_entry *ce, http_encoding_stream *s, http_deflatestream_object **ptr TSRMLS_DC)
  85 {
  86         zend_object_value ov;
  87         http_deflatestream_object *o;
  88
  89         o = ecalloc(1, sizeof(http_deflatestream_object));
  90         o->zo.ce = ce;
  91
  92         if (ptr) {
  93                 *ptr = o;
  94         }
  95
  96         if (s) {
  97                 o->stream = s;
  98         }
  99
 100         ALLOC_HASHTABLE(OBJ_PROP(o));
 101         zend_hash_init(OBJ_PROP(o), 0, NULL, ZVAL_PTR_DTOR, 0);
 102
 103         ov.handle = putObject(http_deflatestream_object, o);
 104         ov.handlers = &http_deflatestream_object_handlers;
 105
 106         return ov;
 107 }
 108
 109 zend_object_value _http_deflatestream_object_clone_obj(zval *this_ptr TSRMLS_DC)
 110 {
 111         http_encoding_stream *s;
 112         getObject(http_deflatestream_object, obj);
 113
 114         s = ecalloc(1, sizeof(http_encoding_stream));
 115         s->flags = obj->stream->flags;
 116         deflateCopy(&s->stream, &obj->stream->stream);
 117         s->stream.opaque = phpstr_dup(s->stream.opaque);
 118
 119         return http_deflatestream_object_new_ex(Z_OBJCE_P(this_ptr), s, NULL);
 120 }
 121
 122 void _http_deflatestream_object_free(zend_object *object TSRMLS_DC)
 123 {
 124         http_deflatestream_object *o = (http_deflatestream_object *) object;
 125
 126         if (OBJ_PROP(o)) {
 127                 zend_hash_destroy(OBJ_PROP(o));
 128                 FREE_HASHTABLE(OBJ_PROP(o));
 129         }
 130         if (o->stream) {
 131                 http_encoding_deflate_stream_free(&o->stream);
 132         }
 133         efree(o);
 134 }
 135
 136 /* {{{ proto void HttpDeflateStream::__construct([int flags = 0])
 137  *
 138  * Creates a new HttpDeflateStream object instance.
 139  *
 140  * Accepts an optional int parameter specifying how to initialize the deflate stream.
 141  */
 142 PHP_METHOD(HttpDeflateStream, __construct)
 143 {
 144         long flags = 0;
 145
 146         SET_EH_THROW_HTTP();
 147         if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &flags)) {
 148                 getObject(http_deflatestream_object, obj);
 149
 150                 if (!obj->stream) {
 151                         obj->stream = http_encoding_deflate_stream_init(NULL, flags);
 152                 } else {
 153                         http_error_ex(HE_WARNING, HTTP_E_ENCODING, "HttpDeflateStream cannot be initialized twice");
 154                 }
 155         }
 156         SET_EH_NORMAL();
 157 }
 158 /* }}} */
 159
 160 /* {{{ proto string HttpDeflateStream::update(string data)
 161  *
 162  * Passes more data through the deflate stream.
 163  *
 164  * Expects a string parameter containing (a part of) the data to deflate.
 165  *
 166  * Returns deflated data on success or FALSE on failure.
 167  */
 168 PHP_METHOD(HttpDeflateStream, update)
 169 {
 170         int data_len;
 171         size_t encoded_len = 0;
 172         char *data, *encoded = NULL;
 173         getObject(http_deflatestream_object, obj);
 174
 175         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &data, &data_len)) {
 176                 RETURN_FALSE;
 177         }
 178
 179         if (!obj->stream && !(obj->stream = http_encoding_deflate_stream_init(NULL, 0))) {
 180                 RETURN_FALSE;
 181         }
 182
 183         if (SUCCESS == http_encoding_deflate_stream_update(obj->stream, data, data_len, &encoded, &encoded_len)) {
 184                 RETURN_STRINGL(encoded, encoded_len, 0);
 185         } else {
 186                 RETURN_FALSE;
 187         }
 188 }
 189 /* }}} */
 190
 191 /* {{{ proto string HttpDeflateStream::flush([string data])
 192  *
 193  * Flushes the deflate stream.
 194  *
 195  * Returns some deflated data as string on success or FALSE on failure.
 196  */
 197 PHP_METHOD(HttpDeflateStream, flush)
 198 {
 199         int data_len = 0;
 200         size_t updated_len = 0, encoded_len = 0;
 201         char *updated = NULL, *encoded = NULL, *data = NULL;
 202         getObject(http_deflatestream_object, obj);
 203
 204         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 205                 RETURN_FALSE;
 206         }
 207
 208         if (!obj->stream && !(obj->stream = http_encoding_deflate_stream_init(NULL, 0))) {
 209                 RETURN_FALSE;
 210         }
 211
 212         if (data_len) {
 213                 if (SUCCESS != http_encoding_deflate_stream_update(obj->stream, data, data_len, &updated, &updated_len)) {
 214                         RETURN_FALSE;
 215                 }
 216         }
 217
 218         if (SUCCESS == http_encoding_deflate_stream_flush(obj->stream, &encoded, &encoded_len)) {
 219                 if (updated_len) {
 220                         updated = erealloc(updated, updated_len + encoded_len + 1);
 221                         updated[updated_len + encoded_len] = '\0';
 222                         memcpy(updated + updated_len, encoded, encoded_len);
 223                         STR_FREE(encoded);
 224                         updated_len += encoded_len;
 225                         RETURN_STRINGL(updated, updated_len, 0);
 226                 } else {
 227                         RETVAL_STRINGL(encoded, encoded_len, 0);
 228                 }
 229         } else {
 230                 RETVAL_FALSE;
 231         }
 232         STR_FREE(updated);
 233 }
 234 /* }}} */
 235
 236 /* {{{ proto string HttpDeflateStream::finish([string data])
 237  *
 238  * Finalizes the deflate stream.  The deflate stream can be reused after finalizing.
 239  *
 240  * Returns the final part of deflated data.
 241  */
 242 PHP_METHOD(HttpDeflateStream, finish)
 243 {
 244         int data_len = 0;
 245         size_t updated_len = 0, encoded_len = 0;
 246         char *updated = NULL, *encoded = NULL, *data = NULL;
 247         getObject(http_deflatestream_object, obj);
 248
 249         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 250                 RETURN_FALSE;
 251         }
 252
 253         if (!obj->stream && !(obj->stream = http_encoding_deflate_stream_init(NULL, 0))) {
 254                 RETURN_FALSE;
 255         }
 256
 257         if (data_len) {
 258                 if (SUCCESS != http_encoding_deflate_stream_update(obj->stream, data, data_len, &updated, &updated_len)) {
 259                         RETURN_FALSE;
 260                 }
 261         }
 262
 263         if (SUCCESS == http_encoding_deflate_stream_finish(obj->stream, &encoded, &encoded_len)) {
 264                 if (updated_len) {
 265                         updated = erealloc(updated, updated_len + encoded_len + 1);
 266                         updated[updated_len + encoded_len] = '\0';
 267                         memcpy(updated + updated_len, encoded, encoded_len);
 268                         STR_FREE(encoded);
 269                         updated_len += encoded_len;
 270                         RETVAL_STRINGL(updated, updated_len, 0);
 271                 } else {
 272                         STR_FREE(updated);
 273                         RETVAL_STRINGL(encoded, encoded_len, 0);
 274                 }
 275         } else {
 276                 STR_FREE(updated);
 277                 RETVAL_FALSE;
 278         }
 279
 280         http_encoding_deflate_stream_dtor(obj->stream);
 281         http_encoding_deflate_stream_init(obj->stream, obj->stream->flags);
 282 }
 283 /* }}} */
 284
 285
 286 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_ZLIB*/
 287
 288 /*
 289  * Local variables:
 290  * tab-width: 4
 291  * c-basic-offset: 4
 292  * End:
 293  * vim600: noet sw=4 ts=4 fdm=marker
 294  * vim<600: noet sw=4 ts=4
 295  */
 296