mod_proxy.c

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        else {
            ap_proxy_is_word(New, parms->pool);
#if DEBUGGING
            fprintf(stderr, "Parsed word %s\n", New->name);
#endif
        }
    }
    return NULL;
}

static const char *
     set_proxy_domain(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);

    if (arg[0] != '.')
        return "ProxyDomain: domain name must start with a dot.";

    psf->domain = arg;
    return NULL;
}

static const char *
     set_proxy_req(cmd_parms *parms, void *dummy, int flag)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);

    psf->req = flag;
    psf->req_set = 1;
    return NULL;
}


static const char *
     set_cache_size(cmd_parms *parms, char *struct_ptr, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    int val;

    if (sscanf(arg, "%d", &val) != 1)
        return "CacheSize value must be an integer (kBytes)";
    psf->cache.space = val;
    psf->cache.space_set = 1;
    return NULL;
}

static const char *
     set_cache_root(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);

    psf->cache.root = arg;

    return NULL;
}

static const char *
     set_cache_factor(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    double val;

    if (sscanf(arg, "%lg", &val) != 1)
        return "CacheLastModifiedFactor value must be a float";
    psf->cache.lmfactor = val;
    psf->cache.lmfactor_set = 1;

    return NULL;
}

static const char *
     set_cache_maxex(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    double val;

    if (sscanf(arg, "%lg", &val) != 1)
        return "CacheMaxExpire value must be a float";
    psf->cache.maxexpire = (int)(val * (double)SEC_ONE_HR);
    psf->cache.maxexpire_set = 1;
    return NULL;
}

static const char *
     set_cache_defex(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    double val;

    if (sscanf(arg, "%lg", &val) != 1)
        return "CacheDefaultExpire value must be a float";
    psf->cache.defaultexpire = (int)(val * (double)SEC_ONE_HR);
    psf->cache.defaultexpire_set = 1;
    return NULL;
}

static const char *
     set_cache_gcint(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    double val;

    if (sscanf(arg, "%lg", &val) != 1)
        return "CacheGcInterval value must be a float";
    psf->cache.gcinterval = (int)(val * (double)SEC_ONE_HR);
    psf->cache.gcinterval_set = 1;
    return NULL;
}

static const char *
     set_cache_dirlevels(cmd_parms *parms, char *struct_ptr, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    int val;

    val = atoi(arg);
    if (val < 1)
        return "CacheDirLevels value must be an integer greater than 0";
    if (val * psf->cache.dirlength > CACHEFILE_LEN)
        return "CacheDirLevels*CacheDirLength value must not be higher than 20";
    psf->cache.dirlevels = val;
    psf->cache.dirlevels_set = 1;
    return NULL;
}

static const char *
     set_cache_dirlength(cmd_parms *parms, char *struct_ptr, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    int val;

    val = atoi(arg);
    if (val < 1)
        return "CacheDirLength value must be an integer greater than 0";
    if (val * psf->cache.dirlevels > CACHEFILE_LEN)
        return "CacheDirLevels*CacheDirLength value must not be higher than 20";
    psf->cache.dirlength = val;
    psf->cache.dirlength_set = 1;
    return NULL;
}

static const char *
     set_cache_exclude(cmd_parms *parms, void *dummy, char *arg)
{
    server_rec *s = parms->server;
    proxy_server_conf *conf =
    ap_get_module_config(s->module_config, &proxy_module);
    struct nocache_entry *new;
    struct nocache_entry *list = (struct nocache_entry *) conf->nocaches->elts;
    struct hostent hp;
    int found = 0;
    int i;

    /* Don't duplicate entries */
    for (i = 0; i < conf->nocaches->nelts; i++) {
        if (strcasecmp(arg, list[i].name) == 0) /* ignore case for host names */
            found = 1;
    }

    if (!found) {
        new = ap_push_array(conf->nocaches);
        new->name = arg;
        /* Don't do name lookups on things that aren't dotted */
        if (strchr(arg, '.') != NULL && ap_proxy_host2addr(new->name, &hp) == NULL)
            /*
             * @@@FIXME: This copies only the first of (possibly many) IP
             * addrs
             */
            memcpy(&new->addr, hp.h_addr, sizeof(struct in_addr));
        else
            new->addr.s_addr = 0;
    }
    return NULL;
}

static const char *
     set_recv_buffer_size(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    int s = atoi(arg);
    if (s < 512 && s != 0) {
        return "ProxyReceiveBufferSize must be >= 512 bytes, or 0 for system default.";
    }

    psf->recv_buffer_size = s;
    psf->recv_buffer_size_set = 1;
    return NULL;
}

static const char *
     set_io_buffer_size(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    long s = atol(arg);

    psf->io_buffer_size = ((s > IOBUFSIZE) ? s : IOBUFSIZE);
    psf->io_buffer_size_set = 1;
    return NULL;
}

static const char *
     set_cache_completion(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);
    int s = atoi(arg);
    if (s > 100 || s < 0) {
        return "CacheForceCompletion must be <= 100 percent, "
            "or 0 for system default.";
    }

    if (s > 0)
        psf->cache.cache_completion = ((float)s / 100);

    psf->cache.cache_completion_set = 1;
    return NULL;
}

static const char *
     set_via_opt(cmd_parms *parms, void *dummy, char *arg)
{
    proxy_server_conf *psf =
    ap_get_module_config(parms->server->module_config, &proxy_module);

    if (strcasecmp(arg, "Off") == 0)
        psf->viaopt = via_off;
    else if (strcasecmp(arg, "On") == 0)
        psf->viaopt = via_on;
    else if (strcasecmp(arg, "Block") == 0)
        psf->viaopt = via_block;
    else if (strcasecmp(arg, "Full") == 0)
        psf->viaopt = via_full;
    else {
        return "ProxyVia must be one of: "
            "off | on | full | block";
    }

    psf->viaopt_set = 1;
    return NULL;
}

static const handler_rec proxy_handlers[] =
{
    {"proxy-server", proxy_handler},
    {NULL}
};

static const command_rec proxy_cmds[] =
{
    {"ProxyRequests", set_proxy_req, NULL, RSRC_CONF, FLAG,
    "on if the true proxy requests should be accepted"},
    {"ProxyRemote", add_proxy, NULL, RSRC_CONF, TAKE2,
    "a scheme, partial URL or '*' and a proxy server"},
    {"ProxyPass", add_pass, NULL, RSRC_CONF, TAKE2,
    "a virtual path and a URL"},
    {"ProxyPassReverse", add_pass_reverse, NULL, RSRC_CONF, TAKE2,
    "a virtual path and a URL for reverse proxy behaviour"},
    {"ProxyBlock", set_proxy_exclude, NULL, RSRC_CONF, ITERATE,
    "A list of names, hosts or domains to which the proxy will not connect"},
    {"ProxyReceiveBufferSize", set_recv_buffer_size, NULL, RSRC_CONF, TAKE1,
    "Receive buffer size for outgoing HTTP and FTP connections in bytes"},
    {"ProxyIOBufferSize", set_io_buffer_size, NULL, RSRC_CONF, TAKE1,
    "IO buffer size for outgoing HTTP and FTP connections in bytes"},
    {"NoProxy", set_proxy_dirconn, NULL, RSRC_CONF, ITERATE,
    "A list of domains, hosts, or subnets to which the proxy will connect directly"},
    {"ProxyDomain", set_proxy_domain, NULL, RSRC_CONF, TAKE1,
    "The default intranet domain name (in absence of a domain in the URL)"},
    {"AllowCONNECT", set_allowed_ports, NULL, RSRC_CONF, ITERATE,
    "A list of ports which CONNECT may connect to"},
    {"CacheRoot", set_cache_root, NULL, RSRC_CONF, TAKE1,
    "The directory to store cache files"},
    {"CacheSize", set_cache_size, NULL, RSRC_CONF, TAKE1,
    "The maximum disk space used by the cache in Kb"},
    {"CacheMaxExpire", set_cache_maxex, NULL, RSRC_CONF, TAKE1,
    "The maximum time in hours to cache a document"},
    {"CacheDefaultExpire", set_cache_defex, NULL, RSRC_CONF, TAKE1,
    "The default time in hours to cache a document"},
    {"CacheLastModifiedFactor", set_cache_factor, NULL, RSRC_CONF, TAKE1,
    "The factor used to estimate Expires date from LastModified date"},
    {"CacheGcInterval", set_cache_gcint, NULL, RSRC_CONF, TAKE1,
    "The interval between garbage collections, in hours"},
    {"CacheDirLevels", set_cache_dirlevels, NULL, RSRC_CONF, TAKE1,
    "The number of levels of subdirectories in the cache"},
    {"CacheDirLength", set_cache_dirlength, NULL, RSRC_CONF, TAKE1,
    "The number of characters in subdirectory names"},
    {"NoCache", set_cache_exclude, NULL, RSRC_CONF, ITERATE,
    "A list of names, hosts or domains for which caching is *not* provided"},
    {"CacheForceCompletion", set_cache_completion, NULL, RSRC_CONF, TAKE1,
    "Force a http cache completion after this percentage is loaded"},
    {"ProxyVia", set_via_opt, NULL, RSRC_CONF, TAKE1,
    "Configure Via: proxy header header to one of: on | off | block | full"},
    {NULL}
};

module MODULE_VAR_EXPORT proxy_module =
{
    STANDARD_MODULE_STUFF,
    proxy_init,                 /* initializer */
    NULL,                       /* create per-directory config structure */
    NULL,                       /* merge per-directory config structures */
    create_proxy_config,        /* create per-server config structure */
    merge_proxy_config,         /* merge per-server config structures */
    proxy_cmds,                 /* command table */
    proxy_handlers,             /* handlers */
    proxy_trans,                /* translate_handler */
    NULL,                       /* check_user_id */
    NULL,                       /* check auth */
    NULL,                       /* check access */
    NULL,                       /* type_checker */
    proxy_fixup,                /* pre-run fixups */
    NULL,                       /* logger */
    NULL,                       /* header parser */
    NULL,                       /* child_init */
    NULL,                       /* child_exit */
    proxy_detect                /* post read-request */
};