#include "php_http.h"
+#ifdef PHP_HTTP_HAVE_HASH
+# include "php_hash.h"
+#endif
+
#include <ext/standard/crc32.h>
#include <ext/standard/sha1.h>
#include <ext/standard/md5.h>
-PHP_HTTP_API void *php_http_etag_init(TSRMLS_D)
+PHP_HTTP_API php_http_etag_t *php_http_etag_init(const char *mode TSRMLS_DC)
{
- void *ctx = NULL;
- char *mode = PHP_HTTP_G->env.etag_mode;
+ void *ctx;
+ php_http_etag_t *e;
#ifdef PHP_HTTP_HAVE_HASH
const php_hash_ops *eho = NULL;
*((uint *) ctx) = ~0;
} else if (mode && !strcasecmp(mode, "sha1")) {
PHP_SHA1Init(ctx = emalloc(sizeof(PHP_SHA1_CTX)));
- } else {
+ } else if (mode && !strcasecmp(mode, "md5")) {
PHP_MD5Init(ctx = emalloc(sizeof(PHP_MD5_CTX)));
+ } else {
+ return NULL;
}
- return ctx;
+ e = emalloc(sizeof(*e));
+ e->ctx = ctx;
+ e->mode = estrdup(mode);
+ TSRMLS_SET_CTX(e->ts);
+
+ return e;
}
-PHP_HTTP_API char *php_http_etag_finish(void *ctx TSRMLS_DC)
+PHP_HTTP_API char *php_http_etag_finish(php_http_etag_t *e)
{
unsigned char digest[128] = {0};
- char *etag = NULL, *mode = PHP_HTTP_G->env.etag_mode;
+ char *etag = NULL;
#ifdef PHP_HTTP_HAVE_HASH
const php_hash_ops *eho = NULL;
- if (mode && (eho = php_hash_fetch_ops(mode, strlen(mode)))) {
- eho->hash_final(digest, ctx);
+ if (mode && (eho = php_hash_fetch_ops(e->mode, strlen(e->mode)))) {
+ eho->hash_final(digest, e->ctx);
etag = php_http_etag_digest(digest, eho->digest_size);
} else
#endif
- if (mode && ((!strcasecmp(mode, "crc32")) || (!strcasecmp(mode, "crc32b")))) {
- *((uint *) ctx) = ~*((uint *) ctx);
- etag = php_http_etag_digest((const unsigned char *) ctx, sizeof(uint));
- } else if (mode && (!strcasecmp(mode, "sha1"))) {
- PHP_SHA1Final(digest, ctx);
+ if (((!strcasecmp(e->mode, "crc32")) || (!strcasecmp(e->mode, "crc32b")))) {
+ *((uint *) e->ctx) = ~*((uint *) e->ctx);
+ etag = php_http_etag_digest((const unsigned char *) e->ctx, sizeof(uint));
+ } else if ((!strcasecmp(e->mode, "sha1"))) {
+ PHP_SHA1Final(digest, e->ctx);
etag = php_http_etag_digest(digest, 20);
} else {
- PHP_MD5Final(digest, ctx);
+ PHP_MD5Final(digest, e->ctx);
etag = php_http_etag_digest(digest, 16);
}
- efree(ctx);
+ efree(e->ctx);
+ efree(e->mode);
+ efree(e);
return etag;
}
-PHP_HTTP_API size_t php_http_etag_update(void *ctx, const char *data_ptr, size_t data_len TSRMLS_DC)
+PHP_HTTP_API size_t php_http_etag_update(php_http_etag_t *e, const char *data_ptr, size_t data_len)
{
- char *mode = PHP_HTTP_G->env.etag_mode;
#ifdef PHP_HTTP_HAVE_HASH
const php_hash_ops *eho = NULL;
- if (mode && (eho = php_hash_fetch_ops(mode, strlen(mode)))) {
- eho->hash_update(ctx, (const unsigned char *) data_ptr, data_len);
+ if (mode && (eho = php_hash_fetch_ops(e->mode, strlen(e->mode)))) {
+ eho->hash_update(e->ctx, (const unsigned char *) data_ptr, data_len);
} else
#endif
- if (mode && ((!strcasecmp(mode, "crc32")) || (!strcasecmp(mode, "crc32b")))) {
- uint i, c = *((uint *) ctx);
+ if (((!strcasecmp(e->mode, "crc32")) || (!strcasecmp(e->mode, "crc32b")))) {
+ uint i, c = *((uint *) e->ctx);
for (i = 0; i < data_len; ++i) {
CRC32(c, data_ptr[i]);
}
- *((uint *)ctx) = c;
- } else if (mode && (!strcasecmp(mode, "sha1"))) {
- PHP_SHA1Update(ctx, (const unsigned char *) data_ptr, data_len);
+ *((uint *) e->ctx) = c;
+ } else if ((!strcasecmp(e->mode, "sha1"))) {
+ PHP_SHA1Update(e->ctx, (const unsigned char *) data_ptr, data_len);
} else {
- PHP_MD5Update(ctx, (const unsigned char *) data_ptr, data_len);
+ PHP_MD5Update(e->ctx, (const unsigned char *) data_ptr, data_len);
}
return data_len;