0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin

6335eb31f0f0ed54628a04ed32946360b8b77684minfrin#include "apr_strings.h"

e9501b71b8a1e76384cb010b1e41e76a1e47aacctrawick#include "apr_lib.h"

e9501b71b8a1e76384cb010b1e41e76a1e47aacctrawick

e9501b71b8a1e76384cb010b1e41e76a1e47aacctrawick#define APR_WANT_STRFUNC

6335eb31f0f0ed54628a04ed32946360b8b77684minfrin#include "apr_want.h"

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#include "ap_config.h"

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#include "httpd.h"

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding#include "http_core.h"

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#include "http_config.h"

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#include "http_request.h"

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe#include "http_log.h"

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingtypedef struct {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding const char *real;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding const char *fake;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding char *handler;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding regex_t *regexp;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding int redir_status; /* 301, 302, 303, 410, etc */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding} alias_entry;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingtypedef struct {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_array_header_t *aliases;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_array_header_t *redirects;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding} alias_server_conf;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingtypedef struct {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_array_header_t *redirects;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard} alias_dir_conf;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardmodule AP_MODULE_DECLARE_DATA alias_module;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic void *create_alias_config(apr_pool_t *p, server_rec *s)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard alias_server_conf *a =

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard (alias_server_conf *) apr_pcalloc(p, sizeof(alias_server_conf));

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard a->aliases = apr_array_make(p, 20, sizeof(alias_entry));

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard a->redirects = apr_array_make(p, 20, sizeof(alias_entry));

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return a;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard}

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic void *create_alias_dir_config(apr_pool_t *p, char *d)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_dir_conf *a =

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding (alias_dir_conf *) apr_pcalloc(p, sizeof(alias_dir_conf));

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding a->redirects = apr_array_make(p, 2, sizeof(alias_entry));

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return a;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic void *merge_alias_config(apr_pool_t *p, void *basev, void *overridesv)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_server_conf *a =

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding (alias_server_conf *) apr_pcalloc(p, sizeof(alias_server_conf));

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_server_conf *base = (alias_server_conf *) basev;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_server_conf *overrides = (alias_server_conf *) overridesv;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding a->aliases = apr_array_append(p, overrides->aliases, base->aliases);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding a->redirects = apr_array_append(p, overrides->redirects, base->redirects);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return a;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic void *merge_alias_dir_config(apr_pool_t *p, void *basev, void *overridesv)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_dir_conf *a =

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding (alias_dir_conf *) apr_pcalloc(p, sizeof(alias_dir_conf));

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_dir_conf *base = (alias_dir_conf *) basev;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_dir_conf *overrides = (alias_dir_conf *) overridesv;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding a->redirects = apr_array_append(p, overrides->redirects, base->redirects);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return a;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic int alias_matches(const char *uri, const char *alias_fakename);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic const char *add_alias_internal(cmd_parms *cmd, void *dummy,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding const char *f, const char *r,

16d38ac65d7e54cd44eeda7b23f84ee68b35094ewrowe int use_regex)

16d38ac65d7e54cd44eeda7b23f84ee68b35094ewrowe{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding server_rec *s = cmd->server;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard alias_server_conf *conf = ap_get_module_config(s->module_config,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard &alias_module);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard alias_entry *new = apr_array_push(conf->aliases);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard alias_entry *entries = (alias_entry *)conf->aliases->elts;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int i;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* XX r can NOT be relative to DocumentRoot here... compat bug. */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (use_regex) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard new->regexp = ap_pregcomp(cmd->pool, f, REG_EXTENDED);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (new->regexp == NULL)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return "Regular expression could not be compiled.";

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding new->real = r;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard else {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* XXX This may be optimized, but we must know that new->real

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding new->real = r;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding new->fake = f;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding new->handler = cmd->info;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* check for overlapping (Script)Alias directives

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (!use_regex) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding for (i = 0; i < conf->aliases->nelts - 1; ++i) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_entry *p = &entries[i];

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (!p->regexp && alias_matches(f, p->fake) > 0) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard "The %s command in line %d will probably never "

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard "match. Check previous %sAlias commands for "

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard "overlappings.", cmd->cmd->name,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding cmd->directive->line_num,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding p->handler ? "Script" : "");

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding break; /* one warning per alias should be sufficient */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return NULL;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard}

11c3b5180e1de6776035320b012a28bb146e7b46chuck

9e2bc52b9409a8d92ce1acd4f6127159a16cbff2ianhstatic const char *add_alias(cmd_parms *cmd, void *dummy, const char *f,

22d348febc3c258df246ac93e37945398dbf0348ianh const char *r)

22d348febc3c258df246ac93e37945398dbf0348ianh{

22d348febc3c258df246ac93e37945398dbf0348ianh return add_alias_internal(cmd, dummy, f, r, 0);

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm}

759554f16128a82e3781510c480784b227843b46ianh

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic const char *add_alias_regex(cmd_parms *cmd, void *dummy, const char *f,

1d7f1b96b49dafbd6cb414fb709cb85de2686a72chuck const char *r)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return add_alias_internal(cmd, dummy, f, r, 1);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic const char *add_redirect_internal(cmd_parms *cmd,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding alias_dir_conf *dirconf,

9b3001f2097437c3c605d29e353fda5131b9952bminfrin const char *arg1, const char *arg2,

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe const char *arg3, int use_regex)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe{

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe alias_entry *new;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe server_rec *s = cmd->server;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe alias_server_conf *serverconf = ap_get_module_config(s->module_config,

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe &alias_module);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe int status = (int) (long) cmd->info;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe regex_t *r = NULL;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard const char *f = arg2;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard const char *url = arg3;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (!strcasecmp(arg1, "gone"))

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe status = HTTP_GONE;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe else if (!strcasecmp(arg1, "permanent"))

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe status = HTTP_MOVED_PERMANENTLY;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe else if (!strcasecmp(arg1, "temp"))

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe status = HTTP_MOVED_TEMPORARILY;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe else if (!strcasecmp(arg1, "seeother"))

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe status = HTTP_SEE_OTHER;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe else if (apr_isdigit(*arg1))

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe status = atoi(arg1);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe else {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe f = arg1;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe url = arg2;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (use_regex) {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe r = ap_pregcomp(cmd->pool, f, REG_EXTENDED);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (r == NULL)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return "Regular expression could not be compiled.";

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (ap_is_HTTP_REDIRECT(status)) {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (!url)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return "URL to redirect to is missing";

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (!use_regex && !ap_is_url(url))

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return "Redirect to non-URL";

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe else {

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (url)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return "Redirect URL not valid for this status";

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe }

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe if (cmd->path)

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe new = apr_array_push(dirconf->redirects);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe else

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe new = apr_array_push(serverconf->redirects);

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe new->fake = f;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe new->real = url;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe new->regexp = r;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe new->redir_status = status;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return NULL;

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe}

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowestatic const char *add_redirect(cmd_parms *cmd, void *dirconf,

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe const char *arg1, const char *arg2,

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe const char *arg3)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return add_redirect_internal(cmd, dirconf, arg1, arg2, arg3, 0);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic const char *add_redirect2(cmd_parms *cmd, void *dirconf,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding const char *arg1, const char *arg2)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return add_redirect_internal(cmd, dirconf, arg1, arg2, NULL, 0);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

68ce856106f153813339db8670f6cd0ab8dea484minfrin

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic const char *add_redirect_regex(cmd_parms *cmd, void *dirconf,

d7387fcd4969206172e3a2a8bbcd25a3d7011ac5rbb const char *arg1, const char *arg2,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard const char *arg3)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe return add_redirect_internal(cmd, dirconf, arg1, arg2, arg3, 1);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

68ce856106f153813339db8670f6cd0ab8dea484minfrinstatic const command_rec alias_cmds[] =

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin{

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard AP_INIT_TAKE2("Alias", add_alias, NULL, RSRC_CONF,

68ce856106f153813339db8670f6cd0ab8dea484minfrin "a fakename and a realname"),

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding AP_INIT_TAKE2("ScriptAlias", add_alias, "cgi-script", RSRC_CONF,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "a fakename and a realname"),

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding AP_INIT_TAKE23("Redirect", add_redirect, (void *) HTTP_MOVED_TEMPORARILY,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard OR_FILEINFO,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "an optional status, then document to be redirected and "

11c3b5180e1de6776035320b012a28bb146e7b46chuck "destination URL"),

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding AP_INIT_TAKE2("AliasMatch", add_alias_regex, NULL, RSRC_CONF,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "a regular expression and a filename"),

11c3b5180e1de6776035320b012a28bb146e7b46chuck AP_INIT_TAKE2("ScriptAliasMatch", add_alias_regex, "cgi-script", RSRC_CONF,

11c3b5180e1de6776035320b012a28bb146e7b46chuck "a regular expression and a filename"),

11c3b5180e1de6776035320b012a28bb146e7b46chuck AP_INIT_TAKE23("RedirectMatch", add_redirect_regex,

11c3b5180e1de6776035320b012a28bb146e7b46chuck (void *) HTTP_MOVED_TEMPORARILY, OR_FILEINFO,

11c3b5180e1de6776035320b012a28bb146e7b46chuck "an optional status, then a regular expression and "

11c3b5180e1de6776035320b012a28bb146e7b46chuck "destination URL"),

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding AP_INIT_TAKE2("RedirectTemp", add_redirect2,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding (void *) HTTP_MOVED_TEMPORARILY, OR_FILEINFO,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "a document to be redirected, then the destination URL"),

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding AP_INIT_TAKE2("RedirectPermanent", add_redirect2,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding (void *) HTTP_MOVED_PERMANENTLY, OR_FILEINFO,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "a document to be redirected, then the destination URL"),

d7387fcd4969206172e3a2a8bbcd25a3d7011ac5rbb {NULL}

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard};

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefieldingstatic int alias_matches(const char *uri, const char *alias_fakename)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding{

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding const char *aliasp = alias_fakename, *urip = uri;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding while (*aliasp) {

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm if (*aliasp == '/') {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* any number of '/' in the alias matches any number in

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm if (*urip != '/')

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return 0;

b999f6ba2a266bf9a92687f31bb7e76021ac5891ianh

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard do {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard ++aliasp;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding } while (*aliasp == '/');

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm do {

1cde33c7e2019830f8fb3224e01649305583916etrawick ++urip;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard } while (*urip == '/');

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard else {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* Other characters are compared literally */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (*urip++ != *aliasp++)

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return 0;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* Check last alias path component matched all the way */

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (aliasp[-1] != '/' && *urip != '\0' && *urip != '/')

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return 0;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

a2f9f38db0931e6edf7b71378dd680c3c5fa5841rbb /* Return number of characters from URI which matched (may be

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return urip - uri;

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

35c9e4d2c0a6465746a98958ef756114834461e6minfrinstatic char *try_alias_list(request_rec *r, apr_array_header_t *aliases,

35c9e4d2c0a6465746a98958ef756114834461e6minfrin int doesc, int *status)

11c3b5180e1de6776035320b012a28bb146e7b46chuck{

35c9e4d2c0a6465746a98958ef756114834461e6minfrin alias_entry *entries = (alias_entry *) aliases->elts;

8a1e3e302a46f468054887a62abdbd9c98f3daa5rbb regmatch_t regm[10];

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard char *found = NULL;

11c3b5180e1de6776035320b012a28bb146e7b46chuck int i;

35c9e4d2c0a6465746a98958ef756114834461e6minfrin

35c9e4d2c0a6465746a98958ef756114834461e6minfrin for (i = 0; i < aliases->nelts; ++i) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard alias_entry *p = &entries[i];

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int l;

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin if (p->regexp) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (!ap_regexec(p->regexp, r->uri, p->regexp->re_nsub + 1, regm,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard 0)) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (p->real) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard found = ap_pregsub(r->pool, p->real, r->uri,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard p->regexp->re_nsub + 1, regm);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (found && doesc) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_uri_t uri;

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin apr_uri_parse(r->pool, found, &uri);

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin /* Do not escape the query string or fragment. */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard found = apr_uri_unparse(r->pool, &uri,

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard APR_URI_UNP_OMITQUERY);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard found = ap_escape_uri(r->pool, found);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (uri.query) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard found = apr_pstrcat(r->pool, found, "?",

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard uri.query, NULL);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin if (uri.fragment) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard found = apr_pstrcat(r->pool, found, "#",

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard uri.fragment, NULL);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e2b2e15108eb7cb566b1d70ce4e479276d951de5minfrin }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard else {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* need something non-null */

35c9e4d2c0a6465746a98958ef756114834461e6minfrin found = apr_pstrdup(r->pool, "");

35c9e4d2c0a6465746a98958ef756114834461e6minfrin }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding else {

3d350b6e1cb11fa790a6adb428856b5dd9857fecianh l = alias_matches(r->uri, p->fake);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (l > 0) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (doesc) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding char *escurl;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding escurl = ap_os_escape_path(r->pool, r->uri + l, 1);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

5babe00918c88eda487771fa6d6d4a1a19c0ced0chuck found = apr_pstrcat(r->pool, p->real, escurl, NULL);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding else

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard found = apr_pstrcat(r->pool, p->real, r->uri + l, NULL);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (found) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (p->handler) { /* Set handler, and leave a note for mod_cgi */

1ccd992d37d62c8cb2056126f2234f64ec189bfddougm r->handler = p->handler;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding apr_table_setn(r->notes, "alias-forced-type", r->handler);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding /* XXX This is as SLOW as can be, next step, we optimize

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (!doesc) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard found = ap_server_root_relative(r->pool, found);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (found) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard *status = p->redir_status;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return found;

1cde33c7e2019830f8fb3224e01649305583916etrawick }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return NULL;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin

2e41eca72bcc4167d1871b0941ee79845540d58eminfrinstatic int translate_alias_redir(request_rec *r)

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard{

a2f9f38db0931e6edf7b71378dd680c3c5fa5841rbb ap_conf_vector_t *sconf = r->server->module_config;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard alias_server_conf *serverconf = ap_get_module_config(sconf, &alias_module);

9379749d811388a7d0e3410940ddd6743a33d330jim char *ret;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard int status;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (r->uri[0] != '/' && r->uri[0] != '\0') {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return DECLINED;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

1cde33c7e2019830f8fb3224e01649305583916etrawick

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if ((ret = try_alias_list(r, serverconf->redirects, 1, &status)) != NULL) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (ap_is_HTTP_REDIRECT(status)) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* include QUERY_STRING if any */

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard if (r->args) {

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard ret = apr_pstrcat(r->pool, ret, "?", r->args, NULL);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard apr_table_setn(r->headers_out, "Location", ret);

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard return status;

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard }

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin if ((ret = try_alias_list(r, serverconf->aliases, 0, &status)) != NULL) {

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin r->filename = ret;

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin return OK;

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin }

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding return DECLINED;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

1cde33c7e2019830f8fb3224e01649305583916etrawick

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddardstatic int fixup_redir(request_rec *r)

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin{

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin void *dconf = r->per_dir_config;

1cde33c7e2019830f8fb3224e01649305583916etrawick alias_dir_conf *dirconf =

6bdb2c094666367615890147775bb18761216c8dminfrin (alias_dir_conf *) ap_get_module_config(dconf, &alias_module);

6bdb2c094666367615890147775bb18761216c8dminfrin char *ret;

6bdb2c094666367615890147775bb18761216c8dminfrin int status;

6bdb2c094666367615890147775bb18761216c8dminfrin

e6366481b8fe06a24337f0b30b7da66cf64d6062stoddard /* It may have changed since last time, so try again */

9865751743e928ea0a9ad83faa04a738001932deminfrin

2e41eca72bcc4167d1871b0941ee79845540d58eminfrin if ((ret = try_alias_list(r, dirconf->redirects, 1, &status)) != NULL) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (ap_is_HTTP_REDIRECT(status)) {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding if (ret[0] == '/') {

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding char *orig_target = ret;

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ret = ap_construct_url(r->pool, ret, r);

11c3b5180e1de6776035320b012a28bb146e7b46chuck ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding "incomplete redirection target of '%s' for "

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe "URI '%s' modified to '%s'",

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe orig_target, r->uri, ret);

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe }

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe if (!ap_is_url(ret)) {

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe status = HTTP_INTERNAL_SERVER_ERROR;

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe "cannot redirect '%s' to '%s'; "

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe "target is not a valid absoluteURI or abs_path",

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe r->uri, ret);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding else {

af952917c05e56874069e1e5f64e6473bb478b68minfrin apr_table_setn(r->headers_out, "Location", ret);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding }

af952917c05e56874069e1e5f64e6473bb478b68minfrin }

af952917c05e56874069e1e5f64e6473bb478b68minfrin return status;

af952917c05e56874069e1e5f64e6473bb478b68minfrin }

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin

afef080e47ef499a5cbceb7ad7fadbb3abca0b48minfrin return DECLINED;

35c9e4d2c0a6465746a98958ef756114834461e6minfrin}

35c9e4d2c0a6465746a98958ef756114834461e6minfrin

4a7df15077ff65dbf3b2cf68fa3063273ac0a547minfrinstatic void register_hooks(apr_pool_t *p)

dcc56911d2b95e73554ff8ced9f72fd456d73881minfrin{

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh static const char * const aszSucc[]={ "mod_userdir.c",

fd3fa792f04fc9c4e8f5f83dceb0fc34e71f8570ianh "mod_vhost_alias.c",NULL };

4224d5789080ea5586d49420da1e1996f5653bb5ianh

4224d5789080ea5586d49420da1e1996f5653bb5ianh ap_hook_translate_name(translate_alias_redir,NULL,aszSucc,APR_HOOK_MIDDLE);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding ap_hook_fixups(fixup_redir,NULL,NULL,APR_HOOK_MIDDLE);

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding}

0f081398cf0eef8cc7c66a535d450110a92dc8aefielding

af952917c05e56874069e1e5f64e6473bb478b68minfrinmodule AP_MODULE_DECLARE_DATA alias_module =

af952917c05e56874069e1e5f64e6473bb478b68minfrin{

9b4c60b689b8a3f2d48d19c55d857b276d405f85wrowe STANDARD20_MODULE_STUFF,

af952917c05e56874069e1e5f64e6473bb478b68minfrin create_alias_dir_config, /* dir config creater */

af952917c05e56874069e1e5f64e6473bb478b68minfrin merge_alias_dir_config, /* dir merger --- default is to override */

af952917c05e56874069e1e5f64e6473bb478b68minfrin create_alias_config, /* server config */

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe merge_alias_config, /* merge server configs */

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe alias_cmds, /* command apr_table_t */

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe register_hooks /* register hooks */

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe};

2ceedfca3a2fdfdb5ff60ca17f030ce91f6331cbwrowe