+++ /dev/null
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- * soup-headers.c: HTTP message header parsing
- *
- * Copyright (C) 2001-2003, Ximian, Inc.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <ctype.h>
-
-#include "soup-headers.h"
-
-/**
- * soup_str_case_hash:
- * @key: ASCII string to hash
- *
- * Hashes @key in a case-insensitive manner.
- *
- * Return value: the hash code.
- **/
-static guint
-soup_str_case_hash (gconstpointer key)
-{
- const char *p = key;
- guint h = g_ascii_toupper(*p);
-
- if (h)
- for (p += 1; *p != '\0'; p++)
- h = (h << 5) - h + g_ascii_toupper(*p);
-
- return h;
-}
-
-/**
- * soup_str_case_equal:
- * @v1: an ASCII string
- * @v2: another ASCII string
- *
- * Compares @v1 and @v2 in a case-insensitive manner
- *
- * Return value: %TRUE if they are equal (modulo case)
- **/
-static gboolean
-soup_str_case_equal (gconstpointer v1,
- gconstpointer v2)
-{
- const char *string1 = v1;
- const char *string2 = v2;
-
- return g_ascii_strcasecmp (string1, string2) == 0;
-}
-
-/*
- * "HTTP/1.1 200 OK\r\nContent-Length: 1234\r\n 567\r\n\r\n"
- * ^ ^ ^ ^ ^ ^
- * | | | | | |
- * key 0 val 0 val+ 0
- * , <---memmove-...
- *
- * key: "Content-Length"
- * val: "1234, 567"
- */
-static gboolean
-soup_headers_parse (char *str,
- int len,
- GHashTable *dest)
-{
- char *key = NULL, *val = NULL, *end = NULL;
- int offset = 0, lws = 0;
-
- key = strstr (str, "\r\n");
- key += 2;
-
- /* join continuation headers, using a comma */
- while ((key = strstr (key, "\r\n"))) {
- key += 2;
- offset = key - str;
-
- if (!*key)
- break;
-
- /* check if first character on the line is whitespace */
- if (*key == ' ' || *key == '\t') {
- key -= 2;
-
- /* eat any trailing space from the previous line*/
- while (key [-1] == ' ' || key [-1] == '\t') key--;
-
- /* count how many characters are whitespace */
- lws = strspn (key, " \t\r\n");
-
- /* if continuation line, replace whitespace with ", " */
- if (key [-1] != ':') {
- lws -= 2;
- key [0] = ',';
- key [1] = ' ';
- }
-
- g_memmove (key, &key [lws], len - offset - lws);
- }
- }
-
- key = str;
-
- /* set eos for header key and value and add to hashtable */
- while ((key = strstr (key, "\r\n"))) {
- GSList *exist_hdrs;
-
- /* set end of last val, or end of http reason phrase */
- key [0] = '\0';
- key += 2;
-
- if (!*key)
- break;
-
- val = strchr (key, ':'); /* find start of val */
-
- if (!val || val > strchr (key, '\r'))
- break;
-
- /* set end of key */
- val [0] = '\0';
-
- val++;
- val += strspn (val, " \t"); /* skip whitespace */
-
- /* find the end of the value */
- end = strstr (val, "\r\n");
- if (!end)
- return FALSE;
-
- exist_hdrs = g_hash_table_lookup (dest, key);
- exist_hdrs = g_slist_append (exist_hdrs,
- g_strndup (val, end - val));
-
- if (!exist_hdrs->next)
- g_hash_table_insert (dest, g_strdup (key), exist_hdrs);
-
- key = end;
- }
-
- return TRUE;
-}
-
-gboolean
-soup_headers_parse_request (char *str,
- int len,
- GHashTable *dest,
- char **req_method,
- char **req_path,
- SoupHttpVersion *ver)
-{
- gulong http_major, http_minor;
- char *s1, *s2, *cr, *p;
-
- if (!str || !*str)
- return FALSE;
-
- cr = memchr (str, '\r', len);
- if (!cr)
- return FALSE;
-
- s1 = memchr (str, ' ', cr - str);
- if (!s1)
- return FALSE;
- s2 = memchr (s1 + 1, ' ', cr - (s1 + 1));
- if (!s2)
- return FALSE;
-
- if (strncmp (s2, " HTTP/", 6) != 0)
- return FALSE;
- http_major = strtoul (s2 + 6, &p, 10);
- if (*p != '.')
- return FALSE;
- http_minor = strtoul (p + 1, &p, 10);
- if (p != cr)
- return FALSE;
-
- if (!soup_headers_parse (str, len, dest))
- return FALSE;
-
- if (req_method)
- *req_method = g_strndup (str, s1 - str);
-
- if (req_path)
- *req_path = g_strndup (s1 + 1, s2 - (s1 + 1));
-
- if (ver) {
- if (http_major == 1 && http_minor == 1)
- *ver = SOUP_HTTP_1_1;
- else
- *ver = SOUP_HTTP_1_0;
- }
-
- return TRUE;
-}
-
-gboolean
-soup_headers_parse_status_line (const char *status_line,
- SoupHttpVersion *ver,
- guint *status_code,
- char **status_phrase)
-{
- guint http_major, http_minor, code;
- guint phrase_start = 0;
-
- if (sscanf (status_line,
- "HTTP/%1u.%1u %3u %n",
- &http_major,
- &http_minor,
- &code,
- &phrase_start) < 3 || !phrase_start)
- return FALSE;
-
- if (ver) {
- if (http_major == 1 && http_minor == 1)
- *ver = SOUP_HTTP_1_1;
- else
- *ver = SOUP_HTTP_1_0;
- }
-
- if (status_code)
- *status_code = code;
-
- if (status_phrase)
- *status_phrase = g_strdup (status_line + phrase_start);
-
- return TRUE;
-}
-
-/**
- * soup_headers_parse_response:
- * @str: the header string (including the trailing blank line)
- * @len: length of @str
- * @dest: #GHashTable to store the header values in
- * @ver: on return, will contain the HTTP version
- * @status_code: on return, will contain the HTTP status code
- * @status_pharse: on return, will contain the status phrase
- *
- * Parses the headers of an HTTP response in @str and stores the
- * results in @ver, @status_code, @status_phrase, and @dest.
- *
- * Return value: success or failure.
- **/
-gboolean
-soup_headers_parse_response (char *str,
- int len,
- GHashTable *dest,
- SoupHttpVersion *ver,
- guint *status_code,
- char **status_phrase)
-{
- if (!str || !*str || len < sizeof ("HTTP/0.0 000 A\r\n\r\n"))
- return FALSE;
-
- if (!soup_headers_parse (str, len, dest))
- return FALSE;
-
- if (!soup_headers_parse_status_line (str,
- ver,
- status_code,
- status_phrase))
- return FALSE;
-
- return TRUE;
-}
-
-
-/*
- * HTTP parameterized header parsing
- */
-
-char *
-soup_header_param_copy_token (GHashTable *tokens, char *t)
-{
- char *data;
-
- g_return_val_if_fail (tokens, NULL);
- g_return_val_if_fail (t, NULL);
-
- if ( (data = g_hash_table_lookup (tokens, t)))
- return g_strdup (data);
- else
- return NULL;
-}
-
-static void
-decode_lwsp (char **in)
-{
- char *inptr = *in;
-
- while (isspace (*inptr))
- inptr++;
-
- *in = inptr;
-}
-
-static char *
-decode_quoted_string (char **in)
-{
- char *inptr = *in;
- char *out = NULL, *outptr;
- int outlen;
- int c;
-
- decode_lwsp (&inptr);
- if (*inptr == '"') {
- char *intmp;
- int skip = 0;
-
- /* first, calc length */
- inptr++;
- intmp = inptr;
- while ( (c = *intmp++) && c != '"') {
- if (c == '\\' && *intmp) {
- intmp++;
- skip++;
- }
- }
-
- outlen = intmp - inptr - skip;
- out = outptr = g_malloc (outlen + 1);
-
- while ( (c = *inptr++) && c != '"') {
- if (c == '\\' && *inptr) {
- c = *inptr++;
- }
- *outptr++ = c;
- }
- *outptr = 0;
- }
-
- *in = inptr;
-
- return out;
-}
-
-char *
-soup_header_param_decode_token (char **in)
-{
- char *inptr = *in;
- char *start;
-
- decode_lwsp (&inptr);
- start = inptr;
-
- while (*inptr && *inptr != '=' && *inptr != ',')
- inptr++;
-
- if (inptr > start) {
- *in = inptr;
- return g_strndup (start, inptr - start);
- }
- else
- return NULL;
-}
-
-static char *
-decode_value (char **in)
-{
- char *inptr = *in;
-
- decode_lwsp (&inptr);
- if (*inptr == '"')
- return decode_quoted_string (in);
- else
- return soup_header_param_decode_token (in);
-}
-
-GHashTable *
-soup_header_param_parse_list (const char *header)
-{
- char *ptr;
- gboolean added = FALSE;
- GHashTable *params = g_hash_table_new (soup_str_case_hash,
- soup_str_case_equal);
-
- ptr = (char *) header;
- while (ptr && *ptr) {
- char *name;
- char *value;
-
- name = soup_header_param_decode_token (&ptr);
- if (*ptr == '=') {
- ptr++;
- value = decode_value (&ptr);
- g_hash_table_insert (params, name, value);
- added = TRUE;
- }
-
- if (*ptr == ',')
- ptr++;
- }
-
- if (!added) {
- g_hash_table_destroy (params);
- params = NULL;
- }
-
- return params;
-}
-
-static void
-destroy_param_hash_elements (gpointer key, gpointer value, gpointer user_data)
-{
- g_free (key);
- g_free (value);
-}
-
-void
-soup_header_param_destroy_hash (GHashTable *table)
-{
- g_hash_table_foreach (table, destroy_param_hash_elements, NULL);
- g_hash_table_destroy (table);
-}
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