fixed the problem of no percent-encoding of decoded query path in proxying

qse/include/qse/http/htre.h

@@ -92,16 +92,19 @@ struct qse_htre_t
 		} s;
 	} u;
 
-	/* special attributes derived from the header */
-	struct
-	{
+	
 #define QSE_HTRE_ATTR_CHUNKED   (1 << 0)
 #define QSE_HTRE_ATTR_LENGTH    (1 << 1)
 #define QSE_HTRE_ATTR_KEEPALIVE (1 << 2)
 #define QSE_HTRE_ATTR_EXPECT    (1 << 3)
 #define QSE_HTRE_ATTR_EXPECT100 (1 << 4)
 #define QSE_HTRE_ATTR_PROXIED   (1 << 5)
-		int flags;
+#define QSE_HTRE_QPATH_PERDEC   (1 << 6) /* the qpath has been percent-decoded */
+	int flags;
+
+	/* special attributes derived from the header */
+	struct
+	{
 		qse_size_t content_length;
 		const qse_mchar_t* status; /* for cgi */
 	} attr;
@@ -231,6 +234,10 @@ QSE_EXPORT void qse_htre_setconcb (
 	void*            ctx
 );
 
+QSE_EXPORT int qse_htre_perdecqpath (
+	qse_htre_t*      req
+);
+
 #ifdef __cplusplus
 }
 #endif

qse/include/qse/http/http.h

@@ -154,6 +154,13 @@ struct qse_http_range_t
 };
 typedef struct qse_http_range_t qse_http_range_t;
 
+
+enum qse_perenchttpstr_opt_t
+{
+	QSE_PERENCHTTPSTR_KEEP_SLASH = (1 << 0)
+};
+typedef enum qse_perenchttpstr_opt_t qse_perenchttpstr_opt_t;
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -195,20 +202,26 @@ QSE_EXPORT qse_mchar_t* qse_fmthttptime (
 	qse_size_t         bufsz
 );
 
-/* percent-decode a string */
+/* percent-decode a string. 
+ * returns the number of affected characters.
+ * for example, 0 means that no characters in the input required decoding. */
 QSE_EXPORT qse_size_t qse_perdechttpstr (
 	const qse_mchar_t* str, 
 	qse_mchar_t*       buf
 );
 
 
-/* percent-encode a string */
+/* percent-encode a string.
+ * returns the number of affected characters. 
+ * for example, 0 means that no characters in the input required encoding. */
 QSE_EXPORT qse_size_t qse_perenchttpstr (
+	int                opt, /**< 0 or bitwise-OR'ed of #qse_perenchttpstr_opt_t */
 	const qse_mchar_t* str, 
 	qse_mchar_t*       buf
 );
 
 QSE_EXPORT qse_mchar_t* qse_perenchttpstrdup (
+	int                opt, /**< 0 or bitwise-OR'ed of #qse_perenchttpstr_opt_t */
 	const qse_mchar_t* str, 
 	qse_mmgr_t*        mmgr
 );