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(update, 1)
  30         HTTP_ARG_VAL(data, 0)
  31 HTTP_END_ARGS;
  32
  33 HTTP_BEGIN_ARGS(flush, 0)
  34         HTTP_ARG_VAL(data, 0)
  35 HTTP_END_ARGS;
  36
  37 HTTP_BEGIN_ARGS(finish, 0)
  38         HTTP_ARG_VAL(data, 0)
  39 HTTP_END_ARGS;
  40
  41 #define OBJ_PROP_CE http_inflatestream_object_ce
  42 zend_class_entry *http_inflatestream_object_ce;
  43 zend_function_entry http_inflatestream_object_fe[] = {
  44         HTTP_INFLATE_ME(update, ZEND_ACC_PUBLIC)
  45         HTTP_INFLATE_ME(flush, ZEND_ACC_PUBLIC)
  46         HTTP_INFLATE_ME(finish, ZEND_ACC_PUBLIC)
  47
  48         EMPTY_FUNCTION_ENTRY
  49 };
  50 static zend_object_handlers http_inflatestream_object_handlers;
  51
  52 PHP_MINIT_FUNCTION(http_inflatestream_object)
  53 {
  54         HTTP_REGISTER_CLASS_EX(HttpInflateStream, http_inflatestream_object, NULL, 0);
  55         http_inflatestream_object_handlers.clone_obj = _http_inflatestream_object_clone_obj;
  56         return SUCCESS;
  57 }
  58
  59 zend_object_value _http_inflatestream_object_new(zend_class_entry *ce TSRMLS_DC)
  60 {
  61         return http_inflatestream_object_new_ex(ce, NULL, NULL);
  62 }
  63
  64 zend_object_value _http_inflatestream_object_new_ex(zend_class_entry *ce, http_encoding_stream *s, http_inflatestream_object **ptr TSRMLS_DC)
  65 {
  66         zend_object_value ov;
  67         http_inflatestream_object *o;
  68
  69         o = ecalloc(1, sizeof(http_inflatestream_object));
  70         o->zo.ce = ce;
  71
  72         if (ptr) {
  73                 *ptr = o;
  74         }
  75
  76         if (s) {
  77                 o->stream = s;
  78         }
  79
  80         ALLOC_HASHTABLE(OBJ_PROP(o));
  81         zend_hash_init(OBJ_PROP(o), 0, NULL, ZVAL_PTR_DTOR, 0);
  82
  83         ov.handle = putObject(http_inflatestream_object, o);
  84         ov.handlers = &http_inflatestream_object_handlers;
  85
  86         return ov;
  87 }
  88
  89 zend_object_value _http_inflatestream_object_clone_obj(zval *this_ptr TSRMLS_DC)
  90 {
  91         http_encoding_stream *s;
  92         getObject(http_inflatestream_object, obj);
  93
  94         s = ecalloc(1, sizeof(http_encoding_stream));
  95         s->flags = obj->stream->flags;
  96         inflateCopy(&s->stream, &obj->stream->stream);
  97         s->stream.opaque = phpstr_dup(s->stream.opaque);
  98
  99         return http_inflatestream_object_new_ex(Z_OBJCE_P(this_ptr), s, NULL);
 100 }
 101
 102 void _http_inflatestream_object_free(zend_object *object TSRMLS_DC)
 103 {
 104         http_inflatestream_object *o = (http_inflatestream_object *) object;
 105
 106         if (OBJ_PROP(o)) {
 107                 zend_hash_destroy(OBJ_PROP(o));
 108                 FREE_HASHTABLE(OBJ_PROP(o));
 109         }
 110         if (o->stream) {
 111                 http_encoding_inflate_stream_free(&o->stream);
 112         }
 113         efree(o);
 114 }
 115
 116 /* {{{ proto string HttpInflateStream::update(string data)
 117  *
 118  * Passes more data through the inflate stream.
 119  *
 120  * Expects a string parameter containing (a part of) the data to inflate.
 121  *
 122  * Returns inflated data on success or FALSE on failure.
 123  */
 124 PHP_METHOD(HttpInflateStream, update)
 125 {
 126         int data_len;
 127         size_t decoded_len = 0;
 128         char *data, *decoded = NULL;
 129         getObject(http_inflatestream_object, obj);
 130
 131         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &data, &data_len)) {
 132                 RETURN_FALSE;
 133         }
 134
 135         if (!data_len) {
 136                 RETURN_STRING("", 1);
 137         }
 138
 139         if (!obj->stream && !(obj->stream = http_encoding_inflate_stream_init(NULL, 0))) {
 140                 RETURN_FALSE;
 141         }
 142
 143         if (SUCCESS == http_encoding_inflate_stream_update(obj->stream, data, data_len, &decoded, &decoded_len)) {
 144                 RETURN_STRINGL(decoded, decoded_len, 0);
 145         } else {
 146                 RETURN_FALSE;
 147         }
 148 }
 149 /* }}} */
 150
 151 /* {{{ proto string HttpInflateStream::flush([string data])
 152  *
 153  * Flush the inflate stream.
 154  *
 155  * Returns some inflated data as string on success or FALSE on failure.
 156  */
 157 PHP_METHOD(HttpInflateStream, flush)
 158 {
 159         int data_len = 0;
 160         size_t decoded_len = 0;
 161         char *decoded = NULL, *data = NULL;
 162         getObject(http_inflatestream_object, obj);
 163
 164         if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &data, &data_len)) {
 165                 RETURN_FALSE;
 166         }
 167
 168         if (!obj->stream && !(obj->stream = http_encoding_inflate_stream_init(NULL, 0))) {
 169                 RETURN_FALSE;
 170         }
 171
 172         /* flushing the inflate stream is a no-op */
 173         if (!data_len) {
 174                 RETURN_STRINGL("", 0, 1);
 175         } else 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::finish([string data])
 184  *
 185  * Finalizes the inflate stream.  The inflate stream can be reused after finalizing.
 186  *
 187  * Returns the final part of inflated data.
 188  */
 189 PHP_METHOD(HttpInflateStream, finish)
 190 {
 191         int data_len = 0;
 192         size_t updated_len = 0, decoded_len = 0;
 193         char *updated = NULL, *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         if (data_len) {
 205                 if (SUCCESS != http_encoding_inflate_stream_update(obj->stream, data, data_len, &updated, &updated_len)) {
 206                         RETURN_FALSE;
 207                 }
 208         }
 209
 210         if (SUCCESS == http_encoding_inflate_stream_finish(obj->stream, &decoded, &decoded_len)) {
 211                 if (updated_len) {
 212                         updated = erealloc(updated, updated_len + decoded_len + 1);
 213                         updated[updated_len + decoded_len] = '\0';
 214                         memcpy(updated + updated_len, decoded, decoded_len);
 215                         STR_FREE(decoded);
 216                         updated_len += decoded_len;
 217                         RETVAL_STRINGL(updated, updated_len, 0);
 218                 } else {
 219                         STR_FREE(updated);
 220                         RETVAL_STRINGL(decoded, decoded_len, 0);
 221                 }
 222         } else {
 223                 STR_FREE(updated);
 224                 RETVAL_FALSE;
 225         }
 226
 227         http_encoding_inflate_stream_dtor(obj->stream);
 228         http_encoding_inflate_stream_init(obj->stream, obj->stream->flags);
 229 }
 230 /* }}} */
 231
 232
 233 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_ZLIB*/
 234
 235 /*
 236  * Local variables:
 237  * tab-width: 4
 238  * c-basic-offset: 4
 239  * End:
 240  * vim600: noet sw=4 ts=4 fdm=marker
 241  * vim<600: noet sw=4 ts=4
 242  */
 243