Add tinyhttp code for sending and reading responses. Clean up some dacp routines. Most new and modified rooutines untested.

2017-12-18 18:50:01 +00:00
parent 845c4689a8
commit 1637a79dd6
25 changed files with 1231 additions and 425 deletions
@@ -0,0 +1,72 @@
+/*-
+ * Copyright 2012 Matthew Endsley
+ * All rights reserved
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted providing that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "header.h"
+
+static unsigned char http_header_state[] = {
+/*     *    \t    \n   \r    ' '     ,     :   PAD */
+    0x80,    1, 0xC1, 0xC1,    1, 0x80, 0x80, 0xC1, /* state 0: HTTP version */
+    0x81,    2, 0xC1, 0xC1,    2,    1,    1, 0xC1, /* state 1: Response code */
+    0x82, 0x82,    4,    3, 0x82, 0x82, 0x82, 0xC1, /* state 2: Response reason */
+    0xC1, 0xC1,    4, 0xC1, 0xC1, 0xC1, 0xC1, 0xC1, /* state 3: HTTP version newline */
+    0x84, 0xC1, 0xC0,    5, 0xC1, 0xC1,    6, 0xC1, /* state 4: Start of header field */
+    0xC1, 0xC1, 0xC0, 0xC1, 0xC1, 0xC1, 0xC1, 0xC1, /* state 5: Last CR before end of header */
+    0x87,    6, 0xC1, 0xC1,    6, 0x87, 0x87, 0xC1, /* state 6: leading whitespace before header value */
+    0x87, 0x87, 0xC4,   10, 0x87, 0x88, 0x87, 0xC1, /* state 7: header field value */
+    0x87, 0x88,    6,    9, 0x88, 0x88, 0x87, 0xC1, /* state 8: Split value field value */
+    0xC1, 0xC1,    6, 0xC1, 0xC1, 0xC1, 0xC1, 0xC1, /* state 9: CR after split value field */
+    0xC1, 0xC1, 0xC4, 0xC1, 0xC1, 0xC1, 0xC1, 0xC1, /* state 10:CR after header value */
+};
+
+int http_parse_header_char(int* state, char ch)
+{
+    int newstate, code = 0;
+    switch (ch) {
+    case '\t': code = 1; break;
+    case '\n': code = 2; break;
+    case '\r': code = 3; break;
+    case  ' ': code = 4; break;
+    case  ',': code = 5; break;
+    case  ':': code = 6; break;
+    }
+
+    newstate = http_header_state[*state * 8 + code];
+    *state = (newstate & 0xF);
+
+    switch (newstate) {
+    case 0xC0: return http_header_status_done;
+    case 0xC1: return http_header_status_done;
+    case 0xC4: return http_header_status_store_keyvalue;
+    case 0x80: return http_header_status_version_character;
+    case 0x81: return http_header_status_code_character;
+    case 0x82: return http_header_status_status_character;
+    case 0x84: return http_header_status_key_character;
+    case 0x87: return http_header_status_value_character;
+    case 0x88: return http_header_status_value_character;
+    }
+
+    return http_header_status_continue;
+}