快速的 HTTP Header 解析C語言庫：H3

H3 是一個 C 語言實現的快速的 HTTP Header 解析庫。H3使用預先建立的最小完美哈希表來定義header字段名稱，以提供快速的字段名稱查找。

示例代碼：

h3_request_header_parse(RequestHeader *header, const char *header, int len);


/*
 * Request Header
 * http://tools.ietf.org/html/rfc2616#section-5.3
 */
Value * h3_get_accept(HeaderFields *headers); // Get "Accept"
Value * h3_get_accept_charset(HeaderFields *headers); // Get "Accept-Charset"
Value * h3_get_accept_language(HeaderFields *headers); // Get "Accept-Language"
Value * h3_get_accept_encoding(HeaderFields *headers); // Get "Accept-Encoding"
Value * h3_get_authorization(HeaderFields *headers); // Get "Authorization"
Value * h3_get_expect(HeaderFields *headers); // Get "Expect"
Value * h3_get_from(HeaderFields *headers); // Get "From"
Value * h3_get_host(HeaderFields *headers); // Get "Host"
Value * h3_get_if_match(HeaderFields *headers); // Get "If-Match"

Value * h3_get_if_none_match(HeaderFields *headers); // Get "If-None-Match"
Value * h3_get_if_range(HeaderFields *headers); // Get "If-Range"
Value * h3_get_if_unmodified_since(HeaderFields *headers); // Get "If-Unmodified-Since"

Value * h3_get_range(HeaderFields *headers); // Get "Range"
Value * h3_get_referer(HeaderFields *headers); // Get "Referer"
Value * h3_get_max_forwards(HeaderFields *headers); // Get "Max-Forwards"
Value * h3_get_proxy_authorization(HeaderFields *headers); // Get "Proxy-Authorization"
Value * h3_get_range(HeaderFields *headers); // Get "Range"
Value * h3_get_user_agent(HeaderFields *headers); // Get "User-Agent"
Value * h3_get_te(HeaderFields *headers); // Get "TE"


/* 
 * Response Header
 * http://tools.ietf.org/html/rfc2616#section-6
 */
Value * h3_get_accept_encoding(HeaderFields *headers); // Get "Accept-Encoding"
Value * h3_get_accept_language(HeaderFields *headers); // Get "Accept-Language"
Value * h3_get_accept_ranges(HeaderFields *headers); // Get "Accept-Ranges"
Value * h3_get_cache_control(HeaderFields *headers);  // Get "Cache-Control"
Value * h3_get_connection(HeaderFields *headers);  // Get "Connection"
Value * h3_get_date(HeaderFields *headers);        // Get "Date"
Value * h3_get_transfer_encoding(HeaderFields *headers); // Get "Transfer-Encoding"
Value * h3_get_upgrade(HeaderFields *headers);     // Get "Upgrade"
Value * h3_get_via(HeaderFields *headers);         // Get "Via"
Value * h3_get_warning(HeaderFields *headers);     // Get "Warning"

#include <h3.h>

int main() {
    RequestHeader *header;
    header = h3_request_header_new();
    h3_request_header_parse(header, headerBody, len);


    printf("HEADER\n");
    printf("===========================\n");
    printf("%s", headerBody);
    printf("\n---------------------------\n");
    printf("Method: %.*s\n", header->RequestMethodLen, header->RequestMethod);
    printf("Request-URI: %.*s\n", header->RequestURILen, header->RequestURI);
    printf("HTTP-Version: %.*s\n", header->HTTPVersionLen, header->HTTPVersion);
    printf("===========================\n");

    h3_request_header_free(header);
    return 0;
}

項目主頁：http://www.baiduhome.net/lib/view/home/1405912464054