Gekikoh Dennoh Club 5/Gekikoh Dennoh Club Vol. 5 (Japan).7z/Gekikoh Dennoh Club Vol. 5 (Japan) (Track 01).bin/internet/webx/webxp040.lzh/Source/FuncUrl/FuncUrl.c

C/C++ Source or Header | 1998-07-25 | 4KB | 199 lines

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


/* URL é≡ scheme/hostname/path/fname/query/port/anchor é╔ò¬ë≡é╖éΘ */
int UrlSplit (char *url,
          char *scheme, char *hostname, char *path, char *fname, char *query, char *anchor,
          int *port)
{
    char c, *s = url, *d = NULL;
    char *last_fname, *last_slash, *last_query = NULL, *last_anchor = NULL;
    char *scheme_str[]=
    {"http://", "file://"};
    short h;

    *query = '\0';
    *anchor = '\0';

    /* scheme é╔éµé┴é─ò¬è≥ */
    for (h = 0; h < sizeof (scheme_str) / sizeof (char *); h++) {
        if (!strnicmp (s, scheme_str[h], strlen (scheme_str[h])))
            break;
    }
    switch (h) {
    case 0:        /* http:// */
        strcpy (scheme, "http://");    /* âfâtâHâïâgé═ HTTP */
        *port = 80;
        s += 7;
        d = hostname;
        while ((*d++ = *s++) != '/');
        *(d - 1) = '\0';
        d = path;
        *d++ = '/';
        break;
    case 1:        /* file:// */
        strcpy (scheme, "file://");
        s += 7;
        *port = 0;    /* ë╝é╔é▒éñé╡é╞é¡ */
        *hostname = '\0';
        d = path;
        break;
#if    0
    case 2:        /* ftp:// */
        strcpy (scheme, "ftp://");
        s += 6;
        *port = 20;
        d = hostname;
        while ((*d++ = *s++) != '/');
        *(d - 1) = '\0';
        d = path;
        *d++ = '/';
        break;
#endif
    default:
        strcpy (scheme, "file://");
        *port = 0;    /* ë╝é╔é▒éñé╡é╞é¡ */
        *hostname = '\0';
        d = path;
        break;
    }


    last_fname = s;        /* ì┼îπé╠ '/' é╠ăé╠âAâhâîâXé≡ò█Ä¥üiâRâsü[î│üj */
    last_slash = d;        /* ì┼îπé╠ '/' é╠ăé╠âAâhâîâXé≡ò█Ä¥üiâRâsü[ɵüj */
    for (;;) {
        c = *d++ = *s++;
        if (c == '\0') {
            if (last_query != NULL) {
                memcpy (fname, last_fname, last_query - last_fname);
                strcpy (query, last_query);
                *(fname + (last_query - last_fname)) = '\0';
            } else {
                if (last_anchor != NULL) {
                    memcpy (fname, last_fname, last_anchor - last_fname);
                    strcpy (anchor, last_anchor);
                    *(fname + (last_anchor - last_fname)) = '\0';
                } else {
                    strcpy (fname, last_fname);
                }
            }
            *last_slash = '\0';
            break;
        }
        if (c == '/') {
            last_fname = s;
            last_slash = d;
        }
        if (c == '?')
            last_query = s - 1;
        if (c == '#')
            last_anchor = s - 1;
    }

    return (0);
}


/* ùvæfé⌐éτîïìçé╡é─ URL é≡É╢ɼé╖éΘ "./" éΓ "../" éαé╡é┴é⌐éΦÅêù¥é╖éΘ */
/* ÆAé╡ fname= "http://ü`" é╛é┴é╜ÅΩìçüAîïìçé╣é╕ url=fname é╞é╖éΘ */
void UrlCat (char *url,        /* ò╘éΦÆl */
         char *scheme, char *hostname, char *path, char *fname, char *query, char *anchor,
         int port)
{
    char *p = fname, *q;
    char c;
    char *last_dir, *last_dir2;

    /* ÉΓæ╬âpâXÄwÆΦé╛é┴é╜ÅΩìç */
    if (!strnicmp (fname, "http://", 7)) {
        strcpy (url, fname);
        return;
    }
    if (!strnicmp (fname, "file://", 7)) {
        strcpy (url, fname);
        return;
    }
    /* ê╚ë║æèæ╬âpâXÄwÆΦé╠Åêù¥ */
    strcpy (url, scheme);
    if (!stricmp (scheme, "http://")) {
        if (port == 80)
            strcat (url, hostname);
        else
            sprintf (url, "http://%s:%d", hostname, port);
    }
    /* '/' é⌐éτÄné▄éΘâtâ@âCâïû╝é╛é┴é╜ÅΩìç */
    if (!strncmp (fname, "/", 1)) {
        strcat (url, fname);
        strcat (url, query);
        return;
    }
    strcat (url, path);

    for (;;) {
        if (!strncmp (p, "./", 2)) {
            p += 2;
            continue;
        }
        if (!strncmp (p, "../", 3)) {
            p += 3;
            q = last_dir = last_dir2 = url;
            while (c = *q++) {
                if (c == '/') {
                    last_dir2 = last_dir;
                    last_dir = q;
                }
            }
            *last_dir2 = '\0';
            continue;
        }
        break;
    }
    strcat (url, p);
    strcat (url, query);
    strcat (url, anchor);
}


#ifdef DEMO
int main (int argc, char *argv[])
{
    char scheme[256], hostname[256], path[256], fname[256], query[256], anchor[256];
    int port;
    char url[256];

    /* UrlSplit() é╠âfâé */
    printf ("UrlSplit() é╠âfâé\n");
    strcpy (url, "http://www.mankai.co.jp/denkura/123/index.htm#tools");
    UrlSplit (url, scheme, hostname, path, fname, query, anchor, &port);
    printf ("url = %s é≡ UrlSplit() é╡é▄é╖\n", url);
    printf ("    scheme    = %s\n"
        "    hostname= %s\n"
        "    path    = %s\n"
        "    fname    = %s\n"
        "    query    = %s\n"
        "    anchor    = %s\n"
        "    port    = %d\n\n", scheme, hostname, path, fname, query, anchor, port);

    /* UrlCat() é╠âfâé */
    printf ("UrlCat() é╠âfâé\n");
    strcpy (fname, "../124/index.htm");
    strcpy (query, "?=UrlFunc");
    port = 1080;
    printf ("    scheme    = %s\n"
        "    hostname= %s\n"
        "    path    = %s\n"
        "    fname    = %s\n"
        "    query    = %s\n"
        "    anchor    = %s\n"
        "    port    = %d\n"
        "é≡ UrlCat() é╡é▄é╖\n", scheme, hostname, path, fname, query, anchor, port);
    UrlCat (url, scheme, hostname, path, fname, query, anchor, port);
    printf ("url = %s\n", url);

    return (0);
}

#endif