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 (OBJ_PROP(o)) {
 119                 zend_hash_destroy(OBJ_PROP(o));
 120                 FREE_HASHTABLE(OBJ_PROP(o));
 121         }
 122         if (o->stream) {
 123                 http_encoding_inflate_stream_free(&o->stream);
 124         }
 125         efree(o);
 126 }
 127
 128 /* {{{ proto void HttpInflateStream::__construct([int flags = 0])
 129  *
 130  * Creates a new HttpInflateStream object instance.
 131  *
 132  * Accepts an optional int parameter specifying how to initialize the inflate stream.
 133  */
 134 PHP_METHOD(HttpInflateStream, __construct)
 135 {
 136         long flags = 0;
 137
 138         SET_EH_THROW_HTTP();
 139         if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &flags)) {
 140                 getObject(http_inflatestream_object, obj);
 141
 142                 if (!obj->stream) {
 143                         obj->stream = http_encoding_inflate_stream_init(NULL, flags & 0x0fffffff);
 144                 } else {
 145                         http_error_ex(HE_WARNING, HTTP_E_ENCODING, "HttpInflateStream cannot be initialized twice");
 146                 }
 147         }
 148         SET_EH_NORMAL();
 149 }
 150 /* }}} */
 151
 152 /* {{{ proto string HttpInflateStream::update(string data)
 153  *
 154  * Passes more data through the inflate stream.
 155  *
 156  * Expects a string parameter containing (a part of) the data to inflate.
 157  *
 158  * Returns inflated data on success or FALSE on failure.
 159  */
 160 PHP_METHOD(HttpInflateStream, update)
 161 {
 162         int data_len;
 163         size_t decoded_len = 0;
 164         char *data, *decoded = NULL;
 165         getObject(http_inflatestream_object, obj);
 166
 167         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &data, &data_len)) {
 168                 RETURN_FALSE;
 169         }
 170
 171         if (!data_len) {
 172                 RETURN_STRING("", 1);
 173         }
 174
 175         if (!obj->stream && !(obj->stream = http_encoding_inflate_stream_init(NULL, 0))) {
 176                 RETURN_FALSE;
 177         }
 178
 179         if (SUCCESS == http_encoding_inflate_stream_update(obj->stream, data, data_len, &decoded, &decoded_len)) {
 180                 RETURN_STRINGL(decoded, decoded_len, 0);
 181         } else {
 182                 RETURN_FALSE;
 183         }
 184 }
 185 /* }}} */
 186
 187 /* {{{ proto string HttpInflateStream::flush([string data])
 188  *
 189  * Flush the inflate stream.
 190  *
 191  * Returns some inflated data as string on success or FALSE on failure.
 192  */
 193 PHP_METHOD(HttpInflateStream, flush)
 194 {
 195         int data_len = 0;
 196         size_t decoded_len = 0;
 197         char *decoded = NULL, *data = NULL;
 198         getObject(http_inflatestream_object, obj);
 199
 200         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 201                 RETURN_FALSE;
 202         }
 203
 204         if (!obj->stream && !(obj->stream = http_encoding_inflate_stream_init(NULL, 0))) {
 205                 RETURN_FALSE;
 206         }
 207
 208         /* flushing the inflate stream is a no-op */
 209         if (!data_len) {
 210                 RETURN_STRINGL("", 0, 1);
 211         } else if (SUCCESS == http_encoding_inflate_stream_update(obj->stream, data, data_len, &decoded, &decoded_len)) {
 212                 RETURN_STRINGL(decoded, decoded_len, 0);
 213         } else {
 214                 RETURN_FALSE;
 215         }
 216 }
 217 /* }}} */
 218
 219 /* {{{ proto string HttpInflateStream::finish([string data])
 220  *
 221  * Finalizes the inflate stream.  The inflate stream can be reused after finalizing.
 222  *
 223  * Returns the final part of inflated data.
 224  */
 225 PHP_METHOD(HttpInflateStream, finish)
 226 {
 227         int data_len = 0;
 228         size_t updated_len = 0, decoded_len = 0;
 229         char *updated = NULL, *decoded = NULL, *data = NULL;
 230         getObject(http_inflatestream_object, obj);
 231
 232         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 233                 RETURN_FALSE;
 234         }
 235
 236         if (!obj->stream && !(obj->stream = http_encoding_inflate_stream_init(NULL, 0))) {
 237                 RETURN_FALSE;
 238         }
 239
 240         if (data_len) {
 241                 if (SUCCESS != http_encoding_inflate_stream_update(obj->stream, data, data_len, &updated, &updated_len)) {
 242                         RETURN_FALSE;
 243                 }
 244         }
 245
 246         if (SUCCESS == http_encoding_inflate_stream_finish(obj->stream, &decoded, &decoded_len)) {
 247                 if (updated_len) {
 248                         updated = erealloc(updated, updated_len + decoded_len + 1);
 249                         updated[updated_len + decoded_len] = '\0';
 250                         memcpy(updated + updated_len, decoded, decoded_len);
 251                         STR_FREE(decoded);
 252                         updated_len += decoded_len;
 253                         RETVAL_STRINGL(updated, updated_len, 0);
 254                 } else {
 255                         STR_FREE(updated);
 256                         RETVAL_STRINGL(decoded, decoded_len, 0);
 257                 }
 258         } else {
 259                 STR_FREE(updated);
 260                 RETVAL_FALSE;
 261         }
 262
 263         http_encoding_inflate_stream_dtor(obj->stream);
 264         http_encoding_inflate_stream_init(obj->stream, obj->stream->flags);
 265 }
 266 /* }}} */
 267
 268
 269 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_ZLIB*/
 270
 271 /*
 272  * Local variables:
 273  * tab-width: 4
 274  * c-basic-offset: 4
 275  * End:
 276  * vim600: noet sw=4 ts=4 fdm=marker
 277  * vim<600: noet sw=4 ts=4
 278  */
 279