git.m6w6.name Git - m6w6/ext-http/blob - http_inflatestream_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_inflatestream_object.h"
  24
  25 #define HTTP_BEGIN_ARGS(method, req_args)       HTTP_BEGIN_ARGS_EX(HttpInflateStream, method, 0, req_args)
  26 #define HTTP_EMPTY_ARGS(method)                         HTTP_EMPTY_ARGS_EX(HttpInflateStream, method, 0)
  27 #define HTTP_INFLATE_ME(method, visibility)     PHP_ME(HttpInflateStream, method, HTTP_ARGS(HttpInflateStream, 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_inflatestream_object_ce
  46 zend_class_entry *http_inflatestream_object_ce;
  47 zend_function_entry http_inflatestream_object_fe[] = {
  48         HTTP_INFLATE_ME(__construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
  49         HTTP_INFLATE_ME(update, ZEND_ACC_PUBLIC)
  50         HTTP_INFLATE_ME(flush, ZEND_ACC_PUBLIC)
  51         HTTP_INFLATE_ME(finish, ZEND_ACC_PUBLIC)
  52
  53         EMPTY_FUNCTION_ENTRY
  54 };
  55 static zend_object_handlers http_inflatestream_object_handlers;
  56
  57 PHP_MINIT_FUNCTION(http_inflatestream_object)
  58 {
  59         HTTP_REGISTER_CLASS_EX(HttpInflateStream, http_inflatestream_object, NULL, 0);
  60         http_inflatestream_object_handlers.clone_obj = _http_inflatestream_object_clone_obj;
  61
  62 #ifndef WONKY
  63         DCL_CONST(long, "FLUSH_NONE", HTTP_ENCODING_STREAM_FLUSH_NONE);
  64         DCL_CONST(long, "FLUSH_SYNC", HTTP_ENCODING_STREAM_FLUSH_SYNC);
  65         DCL_CONST(long, "FLUSH_FULL", HTTP_ENCODING_STREAM_FLUSH_FULL);
  66 #endif
  67
  68         return SUCCESS;
  69 }
  70
  71 zend_object_value _http_inflatestream_object_new(zend_class_entry *ce TSRMLS_DC)
  72 {
  73         return http_inflatestream_object_new_ex(ce, NULL, NULL);
  74 }
  75
  76 zend_object_value _http_inflatestream_object_new_ex(zend_class_entry *ce, http_encoding_stream *s, http_inflatestream_object **ptr TSRMLS_DC)
  77 {
  78         zend_object_value ov;
  79         http_inflatestream_object *o;
  80
  81         o = ecalloc(1, sizeof(http_inflatestream_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_inflatestream_object, o);
  96         ov.handlers = &http_inflatestream_object_handlers;
  97
  98         return ov;
  99 }
 100
 101 zend_object_value _http_inflatestream_object_clone_obj(zval *this_ptr TSRMLS_DC)
 102 {
 103         http_encoding_stream *s;
 104         getObject(http_inflatestream_object, obj);
 105
 106         s = ecalloc(1, sizeof(http_encoding_stream));
 107         s->flags = obj->stream->flags;
 108         inflateCopy(&s->stream, &obj->stream->stream);
 109         s->stream.opaque = phpstr_dup(s->stream.opaque);
 110
 111         return http_inflatestream_object_new_ex(Z_OBJCE_P(this_ptr), s, NULL);
 112 }
 113
 114 void _http_inflatestream_object_free(zend_object *object TSRMLS_DC)
 115 {
 116         http_inflatestream_object *o = (http_inflatestream_object *) object;
 117
 118         if (o->stream) {
 119                 http_encoding_inflate_stream_free(&o->stream);
 120         }
 121         freeObject(o);
 122 }
 123
 124 /* {{{ proto void HttpInflateStream::__construct([int flags = 0])
 125  *
 126  * Creates a new HttpInflateStream object instance.
 127  *
 128  * Accepts an optional int parameter specifying how to initialize the inflate stream.
 129  */
 130 PHP_METHOD(HttpInflateStream, __construct)
 131 {
 132         long flags = 0;
 133
 134         SET_EH_THROW_HTTP();
 135         if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &flags)) {
 136                 getObject(http_inflatestream_object, obj);
 137
 138                 if (!obj->stream) {
 139                         obj->stream = http_encoding_inflate_stream_init(NULL, flags & 0x0fffffff);
 140                 } else {
 141                         http_error_ex(HE_WARNING, HTTP_E_ENCODING, "HttpInflateStream cannot be initialized twice");
 142                 }
 143         }
 144         SET_EH_NORMAL();
 145 }
 146 /* }}} */
 147
 148 /* {{{ proto string HttpInflateStream::update(string data)
 149  *
 150  * Passes more data through the inflate stream.
 151  *
 152  * Expects a string parameter containing (a part of) the data to inflate.
 153  *
 154  * Returns inflated data on success or FALSE on failure.
 155  */
 156 PHP_METHOD(HttpInflateStream, update)
 157 {
 158         int data_len;
 159         size_t decoded_len = 0;
 160         char *data, *decoded = NULL;
 161         getObject(http_inflatestream_object, obj);
 162
 163         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &data, &data_len)) {
 164                 RETURN_FALSE;
 165         }
 166
 167         if (!data_len) {
 168                 RETURN_STRING("", 1);
 169         }
 170
 171         if (!obj->stream && !(obj->stream = http_encoding_inflate_stream_init(NULL, 0))) {
 172                 RETURN_FALSE;
 173         }
 174
 175         if (SUCCESS == http_encoding_inflate_stream_update(obj->stream, data, data_len, &decoded, &decoded_len)) {
 176                 RETURN_STRINGL(decoded, decoded_len, 0);
 177         } else {
 178                 RETURN_FALSE;
 179         }
 180 }
 181 /* }}} */
 182
 183 /* {{{ proto string HttpInflateStream::flush([string data])
 184  *
 185  * Flush the inflate stream.
 186  *
 187  * Returns some inflated data as string on success or FALSE on failure.
 188  */
 189 PHP_METHOD(HttpInflateStream, flush)
 190 {
 191         int data_len = 0;
 192         size_t decoded_len = 0;
 193         char *decoded = NULL, *data = NULL;
 194         getObject(http_inflatestream_object, obj);
 195
 196         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 197                 RETURN_FALSE;
 198         }
 199
 200         if (!obj->stream && !(obj->stream = http_encoding_inflate_stream_init(NULL, 0))) {
 201                 RETURN_FALSE;
 202         }
 203
 204         /* flushing the inflate stream is a no-op */
 205         if (!data_len) {
 206                 RETURN_STRINGL("", 0, 1);
 207         } else if (SUCCESS == http_encoding_inflate_stream_update(obj->stream, data, data_len, &decoded, &decoded_len)) {
 208                 RETURN_STRINGL(decoded, decoded_len, 0);
 209         } else {
 210                 RETURN_FALSE;
 211         }
 212 }
 213 /* }}} */
 214
 215 /* {{{ proto string HttpInflateStream::finish([string data])
 216  *
 217  * Finalizes the inflate stream.  The inflate stream can be reused after finalizing.
 218  *
 219  * Returns the final part of inflated data.
 220  */
 221 PHP_METHOD(HttpInflateStream, finish)
 222 {
 223         int data_len = 0;
 224         size_t updated_len = 0, decoded_len = 0;
 225         char *updated = NULL, *decoded = NULL, *data = NULL;
 226         getObject(http_inflatestream_object, obj);
 227
 228         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 229                 RETURN_FALSE;
 230         }
 231
 232         if (!obj->stream && !(obj->stream = http_encoding_inflate_stream_init(NULL, 0))) {
 233                 RETURN_FALSE;
 234         }
 235
 236         if (data_len) {
 237                 if (SUCCESS != http_encoding_inflate_stream_update(obj->stream, data, data_len, &updated, &updated_len)) {
 238                         RETURN_FALSE;
 239                 }
 240         }
 241
 242         if (SUCCESS == http_encoding_inflate_stream_finish(obj->stream, &decoded, &decoded_len)) {
 243                 if (updated_len) {
 244                         updated = erealloc(updated, updated_len + decoded_len + 1);
 245                         updated[updated_len + decoded_len] = '\0';
 246                         memcpy(updated + updated_len, decoded, decoded_len);
 247                         STR_FREE(decoded);
 248                         updated_len += decoded_len;
 249                         RETVAL_STRINGL(updated, updated_len, 0);
 250                 } else {
 251                         STR_FREE(updated);
 252                         RETVAL_STRINGL(decoded, decoded_len, 0);
 253                 }
 254         } else {
 255                 STR_FREE(updated);
 256                 RETVAL_FALSE;
 257         }
 258
 259         http_encoding_inflate_stream_dtor(obj->stream);
 260         http_encoding_inflate_stream_init(obj->stream, obj->stream->flags);
 261 }
 262 /* }}} */
 263
 264
 265 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_ZLIB*/
 266
 267 /*
 268  * Local variables:
 269  * tab-width: 4
 270  * c-basic-offset: 4
 271  * End:
 272  * vim600: noet sw=4 ts=4 fdm=marker
 273  * vim<600: noet sw=4 ts=4
 274  */
 275