char *resolve_rel_path(request_rec *r, const char *rel_path) {
/* TODO: strip ".." components? */
return apr_pstrcat(r->pool, ap_context_document_root(r), "/", rel_path,
NULL);
}
AP_DECLARE(void) ap_add_common_vars(request_rec *r)
{
apr_table_t *e;
server_rec *s = r->server;
conn_rec *c = r->connection;
core_dir_config *conf =
(core_dir_config *)ap_get_core_module_config(r->per_dir_config);
const char *env_temp;
const apr_array_header_t *hdrs_arr = apr_table_elts(r->headers_in);
const apr_table_entry_t *hdrs = (const apr_table_entry_t *) hdrs_arr->elts;
int i;
apr_port_t rport;
char *q;
/* use a temporary apr_table_t which we'll overlap onto
* r->subprocess_env later
* (exception: if r->subprocess_env is empty at the start,
* write directly into it)
*/
if (apr_is_empty_table(r->subprocess_env)) {
e = r->subprocess_env;
}
else {
e = apr_table_make(r->pool, 25 + hdrs_arr->nelts);
}
/* First, add environment vars from headers... this is as per
* CGI specs, though other sorts of scripting interfaces see
* the same vars...
*/
for (i = 0; i < hdrs_arr->nelts; ++i) {
if (!hdrs[i].key) {
continue;
}
/* A few headers are special cased --- Authorization to prevent
* rogue scripts from capturing passwords; content-type and -length
* for no particular reason.
*/
if (!strcasecmp(hdrs[i].key, "Content-type")) {
apr_table_addn(e, "CONTENT_TYPE", hdrs[i].val);
}
else if (!strcasecmp(hdrs[i].key, "Content-length")) {
apr_table_addn(e, "CONTENT_LENGTH", hdrs[i].val);
}
/*
* You really don't want to disable this check, since it leaves you
* wide open to CGIs stealing passwords and people viewing them
* in the environment with "ps -e". But, if you must...
*/
#ifndef SECURITY_HOLE_PASS_AUTHORIZATION
else if (!strcasecmp(hdrs[i].key, "Authorization")
|| !strcasecmp(hdrs[i].key, "Proxy-Authorization")) {
if (conf->cgi_pass_auth == AP_CGI_PASS_AUTH_ON) {
add_unless_null(e, http2env(r, hdrs[i].key), hdrs[i].val);
}
}
#endif
else
add_unless_null(e, http2env(r, hdrs[i].key), hdrs[i].val);
}
env_temp = apr_table_get(r->subprocess_env, "PATH");
if (env_temp == NULL) {
env_temp = getenv("PATH");
}
if (env_temp == NULL) {
env_temp = DEFAULT_PATH;
}
apr_table_addn(e, "PATH", apr_pstrdup(r->pool, env_temp));
#if defined(WIN32)
env2env(e, "SystemRoot");
env2env(e, "COMSPEC");
env2env(e, "PATHEXT");
env2env(e, "WINDIR");
#elif defined(OS2)
env2env(e, "COMSPEC");
env2env(e, "ETC");
env2env(e, "DPATH");
env2env(e, "PERLLIB_PREFIX");
#elif defined(BEOS)
env2env(e, "LIBRARY_PATH");
#elif defined(DARWIN)
env2env(e, "DYLD_LIBRARY_PATH");
#elif defined(_AIX)
env2env(e, "LIBPATH");
#elif defined(__HPUX__)
/* HPUX PARISC 2.0W knows both, otherwise redundancy is harmless */
env2env(e, "SHLIB_PATH");
env2env(e, "LD_LIBRARY_PATH");
#else /* Some Unix */
env2env(e, "LD_LIBRARY_PATH");
#endif
apr_table_addn(e, "SERVER_SIGNATURE", ap_psignature("", r));
apr_table_addn(e, "SERVER_SOFTWARE", ap_get_server_banner());
apr_table_addn(e, "SERVER_NAME",
ap_escape_html(r->pool, ap_get_server_name_for_url(r)));
apr_table_addn(e, "SERVER_ADDR", r->connection->local_ip); /* Apache */
apr_table_addn(e, "SERVER_PORT",
apr_psprintf(r->pool, "%u", ap_get_server_port(r)));
add_unless_null(e, "REMOTE_HOST",
ap_get_remote_host(c, r->per_dir_config, REMOTE_HOST, NULL));
apr_table_addn(e, "REMOTE_ADDR", r->useragent_ip);
apr_table_addn(e, "DOCUMENT_ROOT", ap_document_root(r)); /* Apache */
apr_table_setn(e, "REQUEST_SCHEME", ap_http_scheme(r));
apr_table_addn(e, "CONTEXT_PREFIX", ap_context_prefix(r));
apr_table_addn(e, "CONTEXT_DOCUMENT_ROOT", ap_context_document_root(r));
apr_table_addn(e, "SERVER_ADMIN", s->server_admin); /* Apache */
if (apr_table_get(r->notes, "proxy-noquery") && (q = ap_strchr(r->filename, '?'))) {
*q = '\0';
apr_table_addn(e, "SCRIPT_FILENAME", apr_pstrdup(r->pool, r->filename));
*q = '?';
}
else {
apr_table_addn(e, "SCRIPT_FILENAME", r->filename); /* Apache */
}
rport = c->client_addr->port;
apr_table_addn(e, "REMOTE_PORT", apr_itoa(r->pool, rport));
if (r->user) {
apr_table_addn(e, "REMOTE_USER", r->user);
}
else if (r->prev) {
request_rec *back = r->prev;
while (back) {
if (back->user) {
apr_table_addn(e, "REDIRECT_REMOTE_USER", back->user);
break;
}
back = back->prev;
}
}
add_unless_null(e, "AUTH_TYPE", r->ap_auth_type);
env_temp = ap_get_remote_logname(r);
if (env_temp) {
apr_table_addn(e, "REMOTE_IDENT", apr_pstrdup(r->pool, env_temp));
}
/* Apache custom error responses. If we have redirected set two new vars */
if (r->prev) {
/* PR#57785: reconstruct full URL here */
apr_uri_t *uri = &r->prev->parsed_uri;
if (!uri->scheme) {
uri->scheme = (char*)ap_http_scheme(r->prev);
}
if (!uri->port) {
uri->port = ap_get_server_port(r->prev);
uri->port_str = apr_psprintf(r->pool, "%u", uri->port);
}
if (!uri->hostname) {
uri->hostname = (char*)ap_get_server_name_for_url(r->prev);
}
add_unless_null(e, "REDIRECT_QUERY_STRING", r->prev->args);
add_unless_null(e, "REDIRECT_URL",
apr_uri_unparse(r->pool, uri, 0));
}
if (e != r->subprocess_env) {
apr_table_overlap(r->subprocess_env, e, APR_OVERLAP_TABLES_SET);
}
}
