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lighttpd1.4/src/configfile.c

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#include "first.h"
#include "base.h"
#include "burl.h"
#include "chunk.h"
#include "ck.h"
#include "fdevent.h"
#include "http_etag.h"
#include "keyvalue.h"
#include "log.h"
#include "configparser.h"
#include "configfile.h"
#include "plugin.h"
#include "stat_cache.h"
#include "sys-crypto.h"
#include <sys/stat.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#include <glob.h>
#ifdef HAVE_SYSLOG_H
# include <syslog.h>
#endif
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
typedef struct {
PLUGIN_DATA;
request_config defaults;
} config_data_base;
static void config_free_config(void * const p_d) {
plugin_data_base * const p = p_d;
if (NULL == p) return;
if (NULL == p->cvlist) { free(p); return; }
/* (init i to 0 if global context; to 1 to skip empty global context) */
for (int i = !p->cvlist[0].v.u2[1], used = p->nconfig; i < used; ++i) {
config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0];
for (; -1 != cpv->k_id; ++cpv) {
switch (cpv->k_id) {
case 18:/* server.kbytes-per-second */
if (cpv->vtype == T_CONFIG_LOCAL) free(cpv->v.v);
break;
default:
break;
}
}
}
free(p->cvlist);
free(p);
}
void config_reset_config_bytes_sec(void * const p_d) {
plugin_data_base * const p = p_d;
if (NULL == p->cvlist) return;
/* (init i to 0 if global context; to 1 to skip empty global context) */
for (int i = !p->cvlist[0].v.u2[1], used = p->nconfig; i < used; ++i) {
config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0];
for (; -1 != cpv->k_id; ++cpv) {
switch (cpv->k_id) {
case 18:/* server.kbytes-per-second */
if (cpv->vtype == T_CONFIG_LOCAL) ((off_t *)cpv->v.v)[0] = 0;
break;
default:
break;
}
}
}
}
static void config_merge_config_cpv(request_config * const pconf, const config_plugin_value_t * const cpv) {
switch (cpv->k_id) { /* index into static config_plugin_keys_t cpk[] */
case 0: /* server.document-root */
pconf->document_root = cpv->v.b;
break;
case 1: /* server.name */
pconf->server_name = cpv->v.b;
break;
case 2: /* server.tag */
pconf->server_tag = cpv->v.b;
break;
case 3: /* server.max-request-size */
pconf->max_request_size = cpv->v.u;
break;
case 4: /* server.max-keep-alive-requests */
pconf->max_keep_alive_requests = cpv->v.shrt;
break;
case 5: /* server.max-keep-alive-idle */
pconf->max_keep_alive_idle = cpv->v.shrt;
break;
case 6: /* server.max-read-idle */
pconf->max_read_idle = cpv->v.shrt;
break;
case 7: /* server.max-write-idle */
pconf->max_write_idle = cpv->v.shrt;
break;
case 8: /* server.errorfile-prefix */
pconf->errorfile_prefix = cpv->v.b;
break;
case 9: /* server.error-handler */
pconf->error_handler = cpv->v.b;
break;
case 10:/* server.error-handler-404 */
pconf->error_handler_404 = cpv->v.b;
break;
case 11:/* server.error-intercept */
pconf->error_intercept = (0 != cpv->v.u);
break;
case 12:/* server.force-lowercase-filenames */
pconf->force_lowercase_filenames = (0 != cpv->v.u);
break;
case 13:/* server.follow-symlink */
pconf->follow_symlink = (0 != cpv->v.u);
break;
case 14:/* server.protocol-http11 */
pconf->allow_http11 = (0 != cpv->v.u);
break;
case 15:/* server.range-requests */
pconf->range_requests = (0 != cpv->v.u);
break;
case 16:/* server.stream-request-body */
pconf->stream_request_body = cpv->v.shrt;
break;
case 17:/* server.stream-response-body */
pconf->stream_response_body = cpv->v.shrt;
break;
case 18:/* server.kbytes-per-second */
pconf->global_bytes_per_second = (unsigned int)((off_t *)cpv->v.v)[1];
pconf->global_bytes_per_second_cnt_ptr = cpv->v.v;
break;
case 19:/* connection.kbytes-per-second */
pconf->bytes_per_second = (unsigned int)cpv->v.shrt << 10;/* (*=1024) */
break;
case 20:/* mimetype.assign */
pconf->mimetypes = cpv->v.a;
break;
case 21:/* mimetype.use-xattr */
pconf->use_xattr = (0 != cpv->v.u);
break;
case 22:/* etag.use-inode */
cpv->v.u
? (pconf->etag_flags |= ETAG_USE_INODE)
: (pconf->etag_flags &= ~ETAG_USE_INODE);
break;
case 23:/* etag.use-mtime */
cpv->v.u
? (pconf->etag_flags |= ETAG_USE_MTIME)
: (pconf->etag_flags &= ~ETAG_USE_MTIME);
break;
case 24:/* etag.use-size */
cpv->v.u
? (pconf->etag_flags |= ETAG_USE_SIZE)
: (pconf->etag_flags &= ~ETAG_USE_SIZE);
break;
case 25:/* debug.log-condition-handling */
pconf->log_condition_handling = (0 != cpv->v.u);
break;
case 26:/* debug.log-file-not-found */
pconf->log_file_not_found = (0 != cpv->v.u);
break;
case 27:/* debug.log-request-handling */
pconf->log_request_handling = (0 != cpv->v.u);
break;
case 28:/* debug.log-request-header */
pconf->log_request_header = (0 != cpv->v.u);
break;
case 29:/* debug.log-response-header */
pconf->log_response_header = (0 != cpv->v.u);
break;
case 30:/* debug.log-timeouts */
pconf->log_timeouts = (0 != cpv->v.u);
break;
case 31: /* server.errorlog */
if (cpv->vtype == T_CONFIG_LOCAL) pconf->errh = cpv->v.v;
break;
case 32:/* server.breakagelog */
if (cpv->vtype == T_CONFIG_LOCAL) pconf->serrh = cpv->v.v;
break;
default:/* should not happen */
return;
}
}
static void config_merge_config(request_config * const pconf, const config_plugin_value_t *cpv) {
do {
config_merge_config_cpv(pconf, cpv);
} while ((++cpv)->k_id != -1);
}
void config_patch_config(request_st * const r) {
config_data_base * const p = r->con->config_data_base;
/* performed by config_reset_config() */
/*memcpy(&r->conf, &p->defaults, sizeof(request_config));*/
for (int i = 1, used = p->nconfig; i < used; ++i) {
if (config_check_cond(r, (uint32_t)p->cvlist[i].k_id))
config_merge_config(&r->conf, p->cvlist + p->cvlist[i].v.u2[0]);
}
}
void config_reset_config(request_st * const r) {
/* initialize request_config (r->conf) from top-level request_config */
config_data_base * const p = r->con->config_data_base;
memcpy(&r->conf, &p->defaults, sizeof(request_config));
}
static void config_burl_normalize_cond (server * const srv) {
buffer * const tb = srv->tmp_buf;
for (uint32_t i = 0; i < srv->config_context->used; ++i) {
data_config * const config =(data_config *)srv->config_context->data[i];
if (COMP_HTTP_QUERY_STRING != config->comp) continue;
switch(config->cond) {
case CONFIG_COND_NE:
case CONFIG_COND_EQ:
/* (can use this routine as long as it does not perform
* any regex-specific normalization of first arg) */
pcre_keyvalue_burl_normalize_key(&config->string, tb);
break;
case CONFIG_COND_NOMATCH:
case CONFIG_COND_MATCH:
pcre_keyvalue_burl_normalize_key(&config->string, tb);
break;
default:
break;
}
}
}
static int config_pcre_keyvalue (server * const srv) {
const int pcre_jit =
!srv->srvconf.feature_flags
|| config_plugin_value_tobool(
array_get_element_klen(srv->srvconf.feature_flags,
CONST_STR_LEN("server.pcre_jit")), 1);
for (uint32_t i = 0; i < srv->config_context->used; ++i) {
data_config * const dc = (data_config *)srv->config_context->data[i];
if (dc->cond != CONFIG_COND_NOMATCH && dc->cond != CONFIG_COND_MATCH)
continue;
if (!data_config_pcre_compile(dc, pcre_jit, srv->errh))
return 0;
}
return 1;
}
#ifdef USE_OPENSSL_CRYPTO
static void config_warn_openssl_module (server *srv) {
for (uint32_t i = 0; i < srv->config_context->used; ++i) {
const data_config *config = (data_config const*)srv->config_context->data[i];
for (uint32_t j = 0; j < config->value->used; ++j) {
data_unset *du = config->value->data[j];
if (0 == strncmp(du->key.ptr, "ssl.", sizeof("ssl.")-1)) {
/* mod_openssl should be loaded after mod_extforward */
array_insert_value(srv->srvconf.modules, CONST_STR_LEN("mod_openssl"));
log_error(srv->errh, __FILE__, __LINE__,
"Warning: please add \"mod_openssl\" to server.modules list "
"in lighttpd.conf. A future release of lighttpd 1.4.x "
"*will not* automatically load mod_openssl and lighttpd "
"*will not* use SSL/TLS where your lighttpd.conf contains "
"ssl.* directives");
return;
}
}
}
}
#endif
static void config_check_module_duplicates (server *srv) {
int dups = 0;
data_string ** const data = (data_string **)srv->srvconf.modules->data;
const uint32_t used = srv->srvconf.modules->used;
for (uint32_t i = 0; i < used; ++i) {
const buffer * const m = &data[i]->value;
for (uint32_t j = i+1; j < used; ++j) {
if (buffer_is_equal(m, &data[j]->value)) {
++dups;
break;
}
}
}
if (!dups) return;
array * const modules = array_init(used - dups);
for (uint32_t i = 0; i < used; ++i) {
const buffer * const m = &data[i]->value;
uint32_t j;
for (j = 0; j < modules->used; ++j) {
buffer *n = &((data_string *)modules->data[j])->value;
if (buffer_is_equal(m, n)) break; /* duplicate */
}
if (j == modules->used)
array_insert_value(modules, BUF_PTR_LEN(m));
}
array_free(srv->srvconf.modules);
srv->srvconf.modules = modules;
}
__attribute_pure__
static const char * config_has_opt_and_value (const server * const srv, const char * const opt, const uint32_t olen, const char * const v, const uint32_t vlen) {
for (uint32_t i = 0; i < srv->config_context->used; ++i) {
const data_config * const config =
(data_config const *)srv->config_context->data[i];
const data_string * const ds =
(data_string *)array_get_element_klen(config->value, opt, olen);
if (NULL != ds && ds->type == TYPE_STRING
&& buffer_eq_slen(&ds->value, v, vlen))
return v;
}
return NULL;
}
static void config_compat_module_prepend (server *srv, const char *module, uint32_t len) {
array *modules = array_init(srv->srvconf.modules->used+4);
array_insert_value(modules, module, len);
for (uint32_t i = 0; i < srv->srvconf.modules->used; ++i) {
data_string *ds = (data_string *)srv->srvconf.modules->data[i];
array_insert_value(modules, BUF_PTR_LEN(&ds->value));
}
array_free(srv->srvconf.modules);
srv->srvconf.modules = modules;
}
static void config_warn_authn_module (server *srv, const char *module, uint32_t len, const char *v) {
buffer * const tb = srv->tmp_buf;
buffer_copy_string_len(tb, CONST_STR_LEN("mod_authn_"));
buffer_append_string_len(tb, module, len);
array_insert_value(srv->srvconf.modules, BUF_PTR_LEN(tb));
log_error(srv->errh, __FILE__, __LINE__,
"Warning: please add \"mod_authn_%s\" to server.modules list "
"in lighttpd.conf. A future release of lighttpd 1.4.x will "
"not automatically load mod_authn_%s and lighttpd will fail "
"to start up since your lighttpd.conf uses auth.backend = \"%s\".",
module, module, v);
}
static void config_compat_module_load (server *srv) {
int prepend_mod_indexfile = 1;
int append_mod_dirlisting = 1;
int append_mod_staticfile = 1;
int append_mod_authn_file = 1;
int append_mod_authn_ldap = 1;
int append_mod_authn_mysql = 1;
int append_mod_openssl = 1;
int contains_mod_auth = 0;
int prepend_mod_auth = 0;
int prepend_mod_vhostdb = 0;
for (uint32_t i = 0; i < srv->srvconf.modules->used; ++i) {
buffer *m = &((data_string *)srv->srvconf.modules->data[i])->value;
if (buffer_eq_slen(m, CONST_STR_LEN("mod_indexfile")))
prepend_mod_indexfile = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_staticfile")))
append_mod_staticfile = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_dirlisting")))
append_mod_dirlisting = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_gnutls")))
append_mod_openssl = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_mbedtls")))
append_mod_openssl = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_nss")))
append_mod_openssl = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_openssl")))
append_mod_openssl = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_wolfssl")))
append_mod_openssl = 0;
else if (0 == strncmp(m->ptr, "mod_auth", sizeof("mod_auth")-1)) {
if (buffer_eq_slen(m, CONST_STR_LEN("mod_auth")))
contains_mod_auth = 1;
else if (!contains_mod_auth)
prepend_mod_auth = 1;
if (buffer_eq_slen(m, CONST_STR_LEN("mod_authn_file")))
append_mod_authn_file = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_authn_ldap")))
append_mod_authn_ldap = 0;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_authn_mysql")))
append_mod_authn_mysql = 0;
}
else if (0 == strncmp(m->ptr, "mod_vhostdb", sizeof("mod_vhostdb")-1)) {
if (buffer_eq_slen(m, CONST_STR_LEN("mod_vhostdb")))
prepend_mod_vhostdb |= 2;
else if (!(prepend_mod_vhostdb & 2))
prepend_mod_vhostdb |= 1;
}
}
/* prepend default modules */
if (prepend_mod_indexfile) {
/* mod_indexfile has to be loaded before mod_fastcgi and friends */
config_compat_module_prepend(srv, CONST_STR_LEN("mod_indexfile"));
}
/* append default modules */
if (append_mod_dirlisting) {
array_insert_value(srv->srvconf.modules, CONST_STR_LEN("mod_dirlisting"));
}
if (append_mod_staticfile) {
array_insert_value(srv->srvconf.modules, CONST_STR_LEN("mod_staticfile"));
}
if (append_mod_openssl) {
#ifdef USE_OPENSSL_CRYPTO
config_warn_openssl_module(srv);
#endif
}
/* mod_auth.c,mod_auth_api.c auth backends were split into separate modules
* Automatically load auth backend modules for compatibility with
* existing lighttpd 1.4.x configs */
if (contains_mod_auth) {
if (append_mod_authn_file) {
const char *v;
if ( (v=config_has_opt_and_value(srv,CONST_STR_LEN("auth.backend"),
CONST_STR_LEN("htdigest")))
||(v=config_has_opt_and_value(srv,CONST_STR_LEN("auth.backend"),
CONST_STR_LEN("htpasswd")))
||(v=config_has_opt_and_value(srv,CONST_STR_LEN("auth.backend"),
CONST_STR_LEN("plain"))))
config_warn_authn_module(srv, CONST_STR_LEN("file"), v);
}
if (append_mod_authn_ldap) {
#if defined(HAVE_LDAP_H) && defined(HAVE_LBER_H) && defined(HAVE_LIBLDAP) && defined(HAVE_LIBLBER)
if (config_has_opt_and_value(srv, CONST_STR_LEN("auth.backend"),
CONST_STR_LEN("ldap")))
config_warn_authn_module(srv, CONST_STR_LEN("ldap"), "ldap");
#endif
}
if (append_mod_authn_mysql) {
#if defined(HAVE_MYSQL)
if (config_has_opt_and_value(srv, CONST_STR_LEN("auth.backend"),
CONST_STR_LEN("mysql")))
config_warn_authn_module(srv, CONST_STR_LEN("mysql"), "mysql");
#endif
}
}
if (prepend_mod_auth) {
config_compat_module_prepend(srv, CONST_STR_LEN("mod_auth"));
}
if (prepend_mod_vhostdb & 1) {
config_compat_module_prepend(srv, CONST_STR_LEN("mod_vhostdb"));
}
}
static void config_deprecate_module_compress (server *srv) {
int mod_compress_idx = -1;
int mod_deflate_idx = -1;
for (uint32_t i = 0; i < srv->srvconf.modules->used; ++i) {
buffer *m = &((data_string *)srv->srvconf.modules->data[i])->value;
if (buffer_eq_slen(m, CONST_STR_LEN("mod_compress")))
mod_compress_idx = (int)i;
else if (buffer_eq_slen(m, CONST_STR_LEN("mod_deflate")))
mod_deflate_idx = (int)i;
}
if (mod_compress_idx < 0) return;
int has_compress_directive = 0;
for (uint32_t i = 0; i < srv->config_context->used; ++i) {
const data_config *config =
(data_config const *)srv->config_context->data[i];
for (uint32_t j = 0; j < config->value->used; ++j) {
buffer *k = &config->value->data[j]->key;
if (0 == strncmp(k->ptr, "compress.", sizeof("compress.")-1)) {
has_compress_directive = 1;
break;
}
}
if (has_compress_directive) {
log_error(srv->errh, __FILE__, __LINE__,
"Warning: \"mod_compress\" is DEPRECATED and has been replaced "
"with \"mod_deflate\". A future release of lighttpd 1.4.x will "
"not contain mod_compress and lighttpd may fail to start up");
break;
}
}
if (mod_deflate_idx >= 0 || !has_compress_directive) {
/* create new modules value list without mod_compress */
array *a = array_init(srv->srvconf.modules->used-1);
for (uint32_t i = 0; i < srv->srvconf.modules->used; ++i) {
buffer *m = &((data_string *)srv->srvconf.modules->data[i])->value;
if (buffer_eq_slen(m, CONST_STR_LEN("mod_compress")))
continue;
array_insert_value(a, BUF_PTR_LEN(m));
}
array_free(srv->srvconf.modules);
srv->srvconf.modules = a;
}
else {
/* replace "mod_compress" value with "mod_deflate" value */
buffer *m = &((data_string *)srv->srvconf.modules->data[mod_compress_idx])->value;
buffer_copy_string_len(m, CONST_STR_LEN("mod_deflate"));
}
}
static int config_http_parseopts (server *srv, const array *a) {
unsigned short int opts = srv->srvconf.http_url_normalize;
unsigned short int decode_2f = 1;
int rc = 1;
for (size_t i = 0; i < a->used; ++i) {
const data_string * const ds = (const data_string *)a->data[i];
const buffer *k = &ds->key;
unsigned short int opt;
int val = config_plugin_value_tobool((data_unset *)ds, 2);
if (2 == val) {
log_error(srv->errh, __FILE__, __LINE__,
"unrecognized value for server.http-parseopts: "
"%s => %s (expect \"[enable|disable]\")", k->ptr, ds->value.ptr);
rc = 0;
}
if (buffer_eq_slen(k, CONST_STR_LEN("url-normalize")))
opt = HTTP_PARSEOPT_URL_NORMALIZE;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-normalize-unreserved")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_UNRESERVED;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-normalize-required")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_REQUIRED;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-ctrls-reject")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_CTRLS_REJECT;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-path-backslash-trans")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_PATH_BACKSLASH_TRANS;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-path-2f-decode")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_DECODE;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-path-2f-reject")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_REJECT;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-path-dotseg-remove")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_PATH_DOTSEG_REMOVE;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-path-dotseg-reject")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_PATH_DOTSEG_REJECT;
else if (buffer_eq_slen(k, CONST_STR_LEN("url-query-20-plus")))
opt = HTTP_PARSEOPT_URL_NORMALIZE_QUERY_20_PLUS;
else if (buffer_eq_slen(k, CONST_STR_LEN("header-strict"))) {
srv->srvconf.http_header_strict = val;
continue;
}
else if (buffer_eq_slen(k, CONST_STR_LEN("host-strict"))) {
srv->srvconf.http_host_strict = val;
continue;
}
else if (buffer_eq_slen(k, CONST_STR_LEN("host-normalize"))) {
srv->srvconf.http_host_normalize = val;
continue;
}
else if (buffer_eq_slen(k, CONST_STR_LEN("method-get-body"))) {
srv->srvconf.http_method_get_body = val;
continue;
}
else {
log_error(srv->errh, __FILE__, __LINE__,
"unrecognized key for server.http-parseopts: %s", k->ptr);
rc = 0;
continue;
}
if (val)
opts |= opt;
else {
opts &= ~opt;
if (opt == HTTP_PARSEOPT_URL_NORMALIZE) {
opts = 0;
break;
}
if (opt == HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_DECODE) {
decode_2f = 0;
}
}
}
if (opts != 0) {
opts |= HTTP_PARSEOPT_URL_NORMALIZE;
if ((opts & (HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_DECODE
|HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_REJECT))
== (HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_DECODE
|HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_REJECT)) {
log_error(srv->errh, __FILE__, __LINE__,
"conflicting options in server.http-parseopts:"
"url-path-2f-decode, url-path-2f-reject");
rc = 0;
}
if ((opts & (HTTP_PARSEOPT_URL_NORMALIZE_PATH_DOTSEG_REMOVE
|HTTP_PARSEOPT_URL_NORMALIZE_PATH_DOTSEG_REJECT))
== (HTTP_PARSEOPT_URL_NORMALIZE_PATH_DOTSEG_REMOVE
|HTTP_PARSEOPT_URL_NORMALIZE_PATH_DOTSEG_REJECT)) {
log_error(srv->errh, __FILE__, __LINE__,
"conflicting options in server.http-parseopts:"
"url-path-dotseg-remove, url-path-dotseg-reject");
rc = 0;
}
if (!(opts & (HTTP_PARSEOPT_URL_NORMALIZE_UNRESERVED
|HTTP_PARSEOPT_URL_NORMALIZE_REQUIRED))) {
opts |= HTTP_PARSEOPT_URL_NORMALIZE_UNRESERVED;
if (decode_2f
&& !(opts & HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_REJECT))
opts |= HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_DECODE;
}
}
srv->srvconf.http_url_normalize = opts;
return rc;
}
static int config_insert_srvconf(server *srv) {
static const config_plugin_keys_t cpk[] = {
{ CONST_STR_LEN("server.modules"),
T_CONFIG_ARRAY_VLIST,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.compat-module-load"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.systemd-socket-activation"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.port"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.bind"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.network-backend"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.chroot"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.username"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.groupname"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.errorlog-placeholder-moved-to-config-insert"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.breakagelog-placeholder-moved-to-config-insert"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.errorlog-use-syslog"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.syslog-facility"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.core-files"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.event-handler"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.pid-file"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.max-worker"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.max-fds"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.max-connections"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.max-request-field-size"),
T_CONFIG_INT,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.chunkqueue-chunk-sz"),
T_CONFIG_INT,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.upload-temp-file-size"),
T_CONFIG_INT,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.upload-dirs"),
T_CONFIG_ARRAY_VLIST,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.http-parseopts"),
T_CONFIG_ARRAY_KVSTRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.http-parseopt-header-strict"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.http-parseopt-host-strict"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.http-parseopt-host-normalize"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.reject-expect-100-with-417"), /*(ignored)*/
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.stat-cache-engine"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("mimetype.xattr-name"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("ssl.engine"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("debug.log-request-header-on-error"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("debug.log-state-handling"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_SERVER }
,{ CONST_STR_LEN("server.feature-flags"),
T_CONFIG_ARRAY_KVANY,
T_CONFIG_SCOPE_SERVER }
,{ NULL, 0,
T_CONFIG_UNSET,
T_CONFIG_SCOPE_UNSET }
};
srv->srvconf.h2proto = 2; /* enable HTTP/2 and h2c by default */
int rc = 0;
plugin_data_base srvplug;
memset(&srvplug, 0, sizeof(srvplug));
plugin_data_base * const p = &srvplug;
if (!config_plugin_values_init(srv, p, cpk, "global"))
return HANDLER_ERROR;
int ssl_enabled = 0; /*(directive checked here only to set default port)*/
/* process and validate T_CONFIG_SCOPE_SERVER config directives */
if (p->cvlist[0].v.u2[1]) {
config_plugin_value_t *cpv = p->cvlist + p->cvlist[0].v.u2[0];
for (; -1 != cpv->k_id; ++cpv) {
switch (cpv->k_id) {
case 0: /* server.modules */
array_copy_array(srv->srvconf.modules, cpv->v.a);
break;
case 1: /* server.compat-module-load */
srv->srvconf.compat_module_load = (unsigned short)cpv->v.u;
break;
case 2: /* server.systemd-socket-activation */
srv->srvconf.systemd_socket_activation=(unsigned short)cpv->v.u;
break;
case 3: /* server.port */
srv->srvconf.port = cpv->v.shrt;
break;
case 4: /* server.bind */
if (!buffer_is_blank(cpv->v.b))
srv->srvconf.bindhost = cpv->v.b;
break;
case 5: /* server.network-backend */
if (!buffer_is_blank(cpv->v.b))
srv->srvconf.network_backend = cpv->v.b;
break;
case 6: /* server.chroot */
if (!buffer_is_blank(cpv->v.b))
srv->srvconf.changeroot = cpv->v.b;
break;
case 7: /* server.username */
if (!buffer_is_blank(cpv->v.b))
srv->srvconf.username = cpv->v.b;
break;
case 8: /* server.groupname */
if (!buffer_is_blank(cpv->v.b))
srv->srvconf.groupname = cpv->v.b;
break;
case 9: /* server.errorlog */ /* moved to config_insert() */
/*srv->srvconf.errorlog_file = cpv->v.b;*/
break;
case 10:/* server.breakagelog */ /* moved to config_insert() */
/*srv->srvconf.breakagelog_file = cpv->v.b;*/
break;
case 11:/* server.errorlog-use-syslog */
srv->srvconf.errorlog_use_syslog = (unsigned short)cpv->v.u;
break;
case 12:/* server.syslog-facility */
if (!buffer_is_blank(cpv->v.b))
srv->srvconf.syslog_facility = cpv->v.b;
break;
case 13:/* server.core-files */
srv->srvconf.enable_cores = (unsigned short)cpv->v.u;
break;
case 14:/* server.event-handler */
srv->srvconf.event_handler = cpv->v.b->ptr;
break;
case 15:/* server.pid-file */
if (!buffer_is_blank(cpv->v.b))
*(const buffer **)&srv->srvconf.pid_file = cpv->v.b;
break;
case 16:/* server.max-worker */
srv->srvconf.max_worker = (unsigned short)cpv->v.u;
break;
case 17:/* server.max-fds */
srv->srvconf.max_fds = (unsigned short)cpv->v.u;
break;
case 18:/* server.max-connections */
srv->srvconf.max_conns = (unsigned short)cpv->v.u;
break;
case 19:/* server.max-request-field-size */
srv->srvconf.max_request_field_size = cpv->v.u;
break;
case 20:/* server.chunkqueue-chunk-sz */
chunkqueue_set_chunk_size(cpv->v.u);
break;
case 21:/* server.upload-temp-file-size */
srv->srvconf.upload_temp_file_size = cpv->v.u;
break;
case 22:/* server.upload-dirs */
array_copy_array(srv->srvconf.upload_tempdirs, cpv->v.a);
break;
case 23:/* server.http-parseopts */
if (!config_http_parseopts(srv, cpv->v.a))
rc = HANDLER_ERROR;
break;
case 24:/* server.http-parseopt-header-strict */
srv->srvconf.http_header_strict = (0 != cpv->v.u);
break;
case 25:/* server.http-parseopt-host-strict */
srv->srvconf.http_host_strict = (0 != cpv->v.u);
break;
case 26:/* server.http-parseopt-host-normalize */
srv->srvconf.http_host_normalize = (0 != cpv->v.u);
break;
case 27:/* server.reject-expect-100-with-417 *//*(ignored)*/
break;
case 28:/* server.stat-cache-engine */
if (0 != stat_cache_choose_engine(cpv->v.b, srv->errh))
rc = HANDLER_ERROR;
break;
case 29:/* mimetype.xattr-name */
stat_cache_xattrname(cpv->v.b->ptr);
break;
case 30:/* ssl.engine */
ssl_enabled = (0 != cpv->v.u);
#if !defined(USE_OPENSSL_CRYPTO) \
&& !defined(USE_MBEDTLS_CRYPTO) \
&& !defined(USE_NSS_CRYPTO) \
&& !defined(USE_GNUTLS_CRYPTO) \
&& !defined(USE_WOLFSSL_CRYPTO)
if (ssl_enabled) {
log_error(srv->errh, __FILE__, __LINE__,
"ssl support is missing; "
"recompile with e.g. --with-openssl");
rc = HANDLER_ERROR;
break;
}
#endif
break;
case 31:/* debug.log-request-header-on-error */
srv->srvconf.log_request_header_on_error = (0 != cpv->v.u);
break;
case 32:/* debug.log-state-handling */
srv->srvconf.log_state_handling = (0 != cpv->v.u);
break;
case 33:/* server.feature-flags */
srv->srvconf.feature_flags = cpv->v.a;
srv->srvconf.h2proto =
config_plugin_value_tobool(
array_get_element_klen(cpv->v.a,
CONST_STR_LEN("server.h2proto")), 1);
if (srv->srvconf.h2proto)
srv->srvconf.h2proto +=
config_plugin_value_tobool(
array_get_element_klen(cpv->v.a,
CONST_STR_LEN("server.h2c")), 1);
srv->srvconf.absolute_dir_redirect =
config_plugin_value_tobool(
array_get_element_klen(cpv->v.a,
CONST_STR_LEN("server.absolute-dir-redirect")), 0);
break;
default:/* should not happen */
break;
}
}
}
if (0 == srv->srvconf.port)
srv->srvconf.port = ssl_enabled ? 443 : 80;
config_check_module_duplicates(srv);
if (srv->srvconf.compat_module_load)
config_compat_module_load(srv);
config_deprecate_module_compress(srv);
if (srv->srvconf.http_url_normalize)
config_burl_normalize_cond(srv);
if (!config_pcre_keyvalue(srv))
rc = HANDLER_ERROR;
free(srvplug.cvlist);
return rc;
}
static int config_insert(server *srv) {
static const config_plugin_keys_t cpk[] = {
{ CONST_STR_LEN("server.document-root"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.name"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.tag"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.max-request-size"),
T_CONFIG_INT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.max-keep-alive-requests"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.max-keep-alive-idle"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.max-read-idle"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.max-write-idle"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.errorfile-prefix"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.error-handler"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.error-handler-404"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.error-intercept"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.force-lowercase-filenames"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.follow-symlink"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.protocol-http11"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.range-requests"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.stream-request-body"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.stream-response-body"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.kbytes-per-second"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("connection.kbytes-per-second"),
T_CONFIG_SHORT,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("mimetype.assign"),
T_CONFIG_ARRAY_KVSTRING,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("mimetype.use-xattr"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("etag.use-inode"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("etag.use-mtime"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("etag.use-size"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("debug.log-condition-handling"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("debug.log-file-not-found"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("debug.log-request-handling"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("debug.log-request-header"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("debug.log-response-header"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("debug.log-timeouts"),
T_CONFIG_BOOL,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.errorlog"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.breakagelog"),
T_CONFIG_STRING,
T_CONFIG_SCOPE_CONNECTION }
,{ NULL, 0,
T_CONFIG_UNSET,
T_CONFIG_SCOPE_UNSET }
};
int rc = 0;
config_data_base * const p = calloc(1, sizeof(config_data_base));
force_assert(p);
srv->config_data_base = p;
if (!config_plugin_values_init(srv, p, cpk, "base"))
return HANDLER_ERROR;
/* process and validate T_CONFIG_SCOPE_CONNECTION config directives
* (init i to 0 if global context; to 1 to skip empty global context) */
for (int i = !p->cvlist[0].v.u2[1]; i < p->nconfig; ++i) {
config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0];
for (; -1 != cpv->k_id; ++cpv) {
switch (cpv->k_id) {
case 0: /* server.document-root */
break;
case 1: /* server.name */
if (buffer_is_blank(cpv->v.b))
cpv->v.b = NULL;
break;
case 2: /* server.tag */
if (!buffer_is_blank(cpv->v.b)) {
buffer *b;
*(const buffer **)&b = cpv->v.b;
for (char *t=strchr(b->ptr,'\n'); t; t=strchr(t+2,'\n')) {
/* not expecting admin to define multi-line server.tag,
* but ensure server_tag has proper header continuation,
* if needed */
if (t[1] == ' ' || t[1] == '\t') continue;
off_t off = t - b->ptr;
size_t len = buffer_clen(b);
buffer_string_prepare_append(b, 1);
t = b->ptr+off;
memmove(t+2, t+1, len - off - 1);
t[1] = ' ';
buffer_commit(b, 1);
}
char *t = b->ptr; /*(make empty if tag is whitespace-only)*/
while (*t==' ' || *t=='\t' || *t=='\r' || *t=='\n') ++t;
if (*t == '\0') buffer_truncate(b, 0);
}
else if (0 != i)
cpv->v.b = NULL;
break;
case 3: /* server.max-request-size */
case 4: /* server.max-keep-alive-requests */
case 5: /* server.max-keep-alive-idle */
case 6: /* server.max-read-idle */
case 7: /* server.max-write-idle */
break;
case 8: /* server.errorfile-prefix */
case 9: /* server.error-handler */
case 10:/* server.error-handler-404 */
if (buffer_is_blank(cpv->v.b))
cpv->v.b = NULL;
break;
case 11:/* server.error-intercept */
case 12:/* server.force-lowercase-filenames */
break;
case 13:/* server.follow-symlink */
#ifndef HAVE_LSTAT
if (0 == cpv->v.u)
log_error(srv->errh, __FILE__, __LINE__,
"Your system lacks lstat(). "
"We can not differ symlinks from files. "
"Please remove server.follow-symlinks from your config.");
#endif
break;
case 14:/* server.protocol-http11 */
case 15:/* server.range-requests */
break;
case 16:/* server.stream-request-body */
if (cpv->v.shrt & FDEVENT_STREAM_REQUEST_BUFMIN)
cpv->v.shrt |=FDEVENT_STREAM_REQUEST;
break;
case 17:/* server.stream-response-body */
if (cpv->v.shrt & FDEVENT_STREAM_RESPONSE_BUFMIN)
cpv->v.shrt |=FDEVENT_STREAM_RESPONSE;
break;
case 18:{/*server.kbytes-per-second */
off_t * const cnt = malloc(2*sizeof(off_t));
force_assert(cnt);
cnt[0] = 0;
cnt[1] = (off_t)cpv->v.shrt << 10;
cpv->v.v = cnt;
cpv->vtype = T_CONFIG_LOCAL;
break;
}
case 19:/* connection.kbytes-per-second */
case 20:/* mimetype.assign */
case 21:/* mimetype.use-xattr */
case 22:/* etag.use-inode */
case 23:/* etag.use-mtime */
case 24:/* etag.use-size */
case 25:/* debug.log-condition-handling */
case 26:/* debug.log-file-not-found */
case 27:/* debug.log-request-handling */
case 28:/* debug.log-request-header */
case 29:/* debug.log-response-header */
case 30:/* debug.log-timeouts */
case 31:/* server.errorlog */ /*(idx in server.c must match)*/
case 32:/* server.breakagelog *//*(idx in server.c must match)*/
break;
default:/* should not happen */
break;
}
}
}
p->defaults.errh = srv->errh;
p->defaults.max_keep_alive_requests = 100;
p->defaults.max_keep_alive_idle = 5;
p->defaults.max_read_idle = 60;
p->defaults.max_write_idle = 360;
p->defaults.follow_symlink = 1;
p->defaults.allow_http11 = 1;
p->defaults.etag_flags = ETAG_USE_INODE | ETAG_USE_MTIME | ETAG_USE_SIZE;
p->defaults.range_requests = 1;
/* use 2 to detect later if value is set by user config in global section */
p->defaults.force_lowercase_filenames = 2;
/*(global, but store in r->conf.http_parseopts)*/
p->defaults.http_parseopts =
(srv->srvconf.http_header_strict ? HTTP_PARSEOPT_HEADER_STRICT :0)
| (srv->srvconf.http_host_strict ? (HTTP_PARSEOPT_HOST_STRICT
|HTTP_PARSEOPT_HOST_NORMALIZE) :0)
| (srv->srvconf.http_host_normalize ? HTTP_PARSEOPT_HOST_NORMALIZE :0)
| (srv->srvconf.http_method_get_body ? HTTP_PARSEOPT_METHOD_GET_BODY :0);
p->defaults.http_parseopts |= srv->srvconf.http_url_normalize;
p->defaults.mimetypes = &srv->srvconf.empty_array; /*(must not be NULL)*/
p->defaults.h2proto = srv->srvconf.h2proto;
/* initialize p->defaults from global config context */
if (p->nconfig > 0 && p->cvlist->v.u2[1]) {
const config_plugin_value_t *cpv = p->cvlist + p->cvlist->v.u2[0];
if (-1 != cpv->k_id)
config_merge_config(&p->defaults, cpv);
}
/* (after processing config defaults) */
p->defaults.max_request_field_size = srv->srvconf.max_request_field_size;
p->defaults.log_state_handling = srv->srvconf.log_state_handling;
p->defaults.log_request_header_on_error =
srv->srvconf.log_request_header_on_error;
if (p->defaults.log_request_handling || p->defaults.log_request_header)
p->defaults.log_request_header_on_error = 1;
return rc;
}
int config_finalize(server *srv, const buffer *default_server_tag) {
/* (call after plugins_call_set_defaults()) */
config_data_base * const p = srv->config_data_base;
/* settings might be enabled during plugins_call_set_defaults() */
p->defaults.high_precision_timestamps =
srv->srvconf.high_precision_timestamps;
/* configure default server_tag if not set
* (if configured to blank, unset server_tag)*/
if (!p->defaults.server_tag)
p->defaults.server_tag = default_server_tag;
else if (buffer_is_blank(p->defaults.server_tag))
p->defaults.server_tag = NULL;
/* dump unused config keys */
for (uint32_t i = 0; i < srv->config_context->used; ++i) {
array *config = ((data_config *)srv->config_context->data[i])->value;
for (uint32_t j = 0; config && j < config->used; ++j) {
const buffer * const k = &config->data[j]->key;
/* all var.* is known as user defined variable */
if (strncmp(k->ptr, "var.", sizeof("var.") - 1) == 0)
continue;
if (!array_get_element_klen(srv->srvconf.config_touched,
BUF_PTR_LEN(k)))
log_error(srv->errh, __FILE__, __LINE__,
"WARNING: unknown config-key: %s (ignored)", k->ptr);
}
}
array_free(srv->srvconf.config_touched);
srv->srvconf.config_touched = NULL;
if (srv->srvconf.config_unsupported || srv->srvconf.config_deprecated) {
if (srv->srvconf.config_unsupported)
log_error(srv->errh, __FILE__, __LINE__,
"Configuration contains unsupported keys. Going down.");
if (srv->srvconf.config_deprecated)
log_error(srv->errh, __FILE__, __LINE__,
"Configuration contains deprecated keys. Going down.");
return 0;
}
return 1;
}
/* Save some bytes using buffer_append_string() in cold funcs to print config
* (instead of buffer_append_string_len() w/ CONST_STR_LEN() on constant strs)*/
static void config_print_by_type(const data_unset *du, buffer *b, int depth);
static void config_print_indent(buffer *b, int depth) {
depth <<= 2;
memset(buffer_extend(b, depth), ' ', depth);
}
__attribute_pure__
static uint32_t config_print_array_max_klen(const array * const a) {
uint32_t maxlen = 0;
for (uint32_t i = 0; i < a->used; ++i) {
uint32_t len = buffer_clen(&a->data[i]->key);
if (maxlen < len)
maxlen = len;
}
return maxlen;
}
static void config_print_array(const array * const a, buffer * const b, int depth) {
if (a->used <= 5 && (!a->used || buffer_is_unset(&a->data[0]->key))) {
int oneline = 1;
for (uint32_t i = 0; i < a->used; ++i) {
data_unset *du = a->data[i];
if (du->type != TYPE_STRING && du->type != TYPE_INTEGER) {
oneline = 0;
break;
}
}
if (oneline) {
buffer_append_string(b, "(");
for (uint32_t i = 0; i < a->used; ++i) {
if (i != 0)
buffer_append_string(b, ", ");
config_print_by_type(a->data[i], b, depth + 1);
}
buffer_append_string(b, ")");
return;
}
}
const uint32_t maxlen = config_print_array_max_klen(a);
buffer_append_string(b, "(\n");
for (uint32_t i = 0; i < a->used; ++i) {
config_print_indent(b, depth + 1);
data_unset *du = a->data[i];
if (!buffer_is_unset(&du->key)) {
buffer_append_str3(b, CONST_STR_LEN("\""),
BUF_PTR_LEN(&du->key),
CONST_STR_LEN("\""));
int indent = (int)(maxlen - buffer_clen(&du->key));
if (indent > 0)
memset(buffer_extend(b, indent), ' ', indent);
buffer_append_string(b, " => ");
}
config_print_by_type(du, b, depth + 1);
buffer_append_string(b, ",\n");
}
config_print_indent(b, depth);
buffer_append_string(b, ")");
}
static void config_print_config(const data_unset *d, buffer * const b, int depth) {
data_config *dc = (data_config *)d;
array *a = (array *)dc->value;
if (0 == dc->context_ndx) {
buffer_append_string(b, "config {\n");
}
else {
if (dc->cond != CONFIG_COND_ELSE) {
buffer_append_string(b, dc->comp_key);
buffer_append_string(b, " ");
}
buffer_append_string(b, "{\n");
config_print_indent(b, depth + 1);
buffer_append_string(b, "# block ");
buffer_append_int(b, dc->context_ndx);
buffer_append_string(b, "\n");
}
++depth;
const uint32_t maxlen = config_print_array_max_klen(a);
for (uint32_t i = 0; i < a->used; ++i) {
config_print_indent(b, depth);
data_unset *du = a->data[i];
buffer_append_string_buffer(b, &du->key);
int indent = (int)(maxlen - buffer_clen(&du->key));
if (indent > 0)
memset(buffer_extend(b, indent), ' ', indent);
buffer_append_string(b, " = ");
config_print_by_type(du, b, depth);
buffer_append_string(b, "\n");
}
buffer_append_string(b, "\n");
for (uint32_t i = 0; i < dc->children.used; ++i) {
data_config *dcc = dc->children.data[i];
/* only the 1st block of chaining */
if (NULL == dcc->prev) {
buffer_append_string(b, "\n");
config_print_indent(b, depth);
config_print_by_type((data_unset *) dcc, b, depth);
buffer_append_string(b, "\n");
}
}
--depth;
config_print_indent(b, depth);
buffer_append_string(b, "}");
if (0 != dc->context_ndx) {
buffer_append_string(b, " # end of ");
buffer_append_string(b, (dc->cond != CONFIG_COND_ELSE)
? dc->comp_key
: "else");
}
if (dc->next) {
buffer_append_string(b, "\n");
config_print_indent(b, depth);
buffer_append_string(b, "else ");
config_print_by_type((data_unset *)dc->next, b, depth);
}
}
static void config_print_string(const data_unset *du, buffer * const b) {
/* print out the string as is, except prepend '"' with backslash */
const buffer * const vb = &((data_string *)du)->value;
char *dst = buffer_string_prepare_append(b, buffer_clen(vb)*2);
uint32_t n = 0;
dst[n++] = '"';
if (vb->ptr) {
for (const char *p = vb->ptr; *p; ++p) {
if (*p == '"')
dst[n++] = '\\';
dst[n++] = *p;
}
}
dst[n++] = '"';
buffer_commit(b, n);
}
__attribute_cold__
static void config_print_by_type(const data_unset * const du, buffer * const b, int depth) {
switch (du->type) {
case TYPE_STRING:
config_print_string(du, b);
break;
case TYPE_INTEGER:
buffer_append_int(b, ((data_integer *)du)->value);
break;
case TYPE_ARRAY:
config_print_array(&((data_array *)du)->value, b, depth);
break;
case TYPE_CONFIG:
config_print_config(du, b, depth);
break;
default:
/*if (du->fn->print) du->fn->print(du, b, depth);*/
break;
}
}
void config_print(server *srv) {
buffer_clear(srv->tmp_buf);
data_unset *dc = srv->config_context->data[0];
config_print_by_type(dc, srv->tmp_buf, 0);
}
void config_free(server *srv) {
config_free_config(srv->config_data_base);
array_free(srv->config_context);
array_free(srv->srvconf.config_touched);
array_free(srv->srvconf.modules);
buffer_free(srv->srvconf.modules_dir);
array_free(srv->srvconf.upload_tempdirs);
}
void config_init(server *srv) {
srv->config_context = array_init(16);
srv->srvconf.config_touched = array_init(128);
srv->srvconf.port = 0;
srv->srvconf.dont_daemonize = 0;
srv->srvconf.preflight_check = 0;
srv->srvconf.compat_module_load = 1;
srv->srvconf.systemd_socket_activation = 0;
srv->srvconf.high_precision_timestamps = 0;
srv->srvconf.max_request_field_size = 8192;
srv->srvconf.http_header_strict = 1;
srv->srvconf.http_host_strict = 1; /*(implies http_host_normalize)*/
srv->srvconf.http_host_normalize = 0;
srv->srvconf.http_url_normalize =
HTTP_PARSEOPT_URL_NORMALIZE
| HTTP_PARSEOPT_URL_NORMALIZE_UNRESERVED
| HTTP_PARSEOPT_URL_NORMALIZE_CTRLS_REJECT
| HTTP_PARSEOPT_URL_NORMALIZE_PATH_2F_DECODE
| HTTP_PARSEOPT_URL_NORMALIZE_PATH_DOTSEG_REMOVE;
srv->srvconf.modules = array_init(16);
srv->srvconf.modules_dir = buffer_init_string(LIBRARY_DIR);
srv->srvconf.upload_tempdirs = array_init(2);
}
/**
* open the errorlog
*
* we have 4 possibilities:
* - stderr (default)
* - syslog
* - logfile
* - pipe
*
*/
static void config_log_error_open_syslog(server *srv, log_error_st *errh, const buffer *syslog_facility) {
#ifdef HAVE_SYSLOG_H
errh->errorlog_mode = ERRORLOG_SYSLOG;
/* perhaps someone wants to use syslog() */
int facility = -1;
if (syslog_facility) {
static const struct facility_name_st {
const char *name;
int val;
} facility_names[] = {
{ "auth", LOG_AUTH }
#ifdef LOG_AUTHPRIV
,{ "authpriv", LOG_AUTHPRIV }
#endif
#ifdef LOG_CRON
,{ "cron", LOG_CRON }
#endif
,{ "daemon", LOG_DAEMON }
#ifdef LOG_FTP
,{ "ftp", LOG_FTP }
#endif
#ifdef LOG_KERN
,{ "kern", LOG_KERN }
#endif
#ifdef LOG_LPR
,{ "lpr", LOG_LPR }
#endif
#ifdef LOG_MAIL
,{ "mail", LOG_MAIL }
#endif
#ifdef LOG_NEWS
,{ "news", LOG_NEWS }
#endif
,{ "security", LOG_AUTH } /* DEPRECATED */
#ifdef LOG_SYSLOG
,{ "syslog", LOG_SYSLOG }
#endif
#ifdef LOG_USER
,{ "user", LOG_USER }
#endif
#ifdef LOG_UUCP
,{ "uucp", LOG_UUCP }
#endif
,{ "local0", LOG_LOCAL0 }
,{ "local1", LOG_LOCAL1 }
,{ "local2", LOG_LOCAL2 }
,{ "local3", LOG_LOCAL3 }
,{ "local4", LOG_LOCAL4 }
,{ "local5", LOG_LOCAL5 }
,{ "local6", LOG_LOCAL6 }
,{ "local7", LOG_LOCAL7 }
};
for (unsigned int i = 0; i < sizeof(facility_names)/sizeof(facility_names[0]); ++i) {
const struct facility_name_st *f = facility_names+i;
if (0 == strcmp(syslog_facility->ptr, f->name)) {
facility = f->val;
break;
}
}
if (-1 == facility) {
log_error(srv->errh, __FILE__, __LINE__,
"unrecognized server.syslog-facility: \"%s\"; "
"defaulting to \"daemon\" facility",
syslog_facility->ptr);
}
}
openlog("lighttpd", LOG_CONS|LOG_PID, -1==facility ? LOG_DAEMON : facility);
#endif
}
static int config_log_error_open_fn(server *srv, log_error_st *errh, const char *fn) {
int fd = fdevent_open_logger(fn);
if (-1 == fd) {
log_perror(srv->errh, __FILE__, __LINE__,
"opening errorlog '%s' failed", fn);
return -1;
}
errh->errorlog_fd = fd;
errh->errorlog_mode = fn[0] == '|' ? ERRORLOG_PIPE : ERRORLOG_FILE;
errh->fn = fn;
return 0;
}
int config_log_error_open(server *srv) {
/* logs are opened after preflight check (srv->srvconf.preflight_check)
* and after dropping privileges instead of being opened during config
* processing */
#ifdef __clang_analyzer__
force_assert(srv->errh);
#endif
/* Note: implementation does not de-dup repeated files or pipe commands */
config_data_base * const p = srv->config_data_base;
log_error_st *serrh = NULL;
/* future: might be slightly faster to have allocated array of open files
* rather than walking config, but only might matter with many directives */
/* (init i to 0 if global context; to 1 to skip empty global context) */
for (int i = !p->cvlist[0].v.u2[1]; i < p->nconfig; ++i) {
config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0];
for (; -1 != cpv->k_id; ++cpv) {
const char *fn = NULL;
log_error_st *errh = NULL;
switch (cpv->k_id) {
/* NB: these indexes are repeated below switch() block
* and all must stay in sync with configfile.c */
case 31:/* server.errorlog */
if (0 == i) {
if (srv->srvconf.errorlog_use_syslog) continue;
errh = srv->errh;
}
__attribute_fallthrough__
case 32:/* server.breakagelog */
if (!buffer_is_blank(cpv->v.b)) fn = cpv->v.b->ptr;
break;
default:
break;
}
if (NULL == fn) continue;
if (NULL == errh) errh = log_error_st_init();
cpv->v.v = errh;
cpv->vtype = T_CONFIG_LOCAL;
if (0 != config_log_error_open_fn(srv, errh, fn)) return -1;
if (0 == i && errh != srv->errh) /*(top-level server.breakagelog)*/
serrh = errh;
}
}
if (srv->srvconf.errorlog_use_syslog) /*(restricted to global scope)*/
config_log_error_open_syslog(srv, srv->errh,
srv->srvconf.syslog_facility);
else if (srv->errh->errorlog_mode == ERRORLOG_FD
&& !srv->srvconf.dont_daemonize)
srv->errh->errorlog_fd = -1;
/* We can only log to stderr in dont-daemonize mode;
* if we do daemonize and no errorlog file is specified,
* we log into /dev/null
*/
/* Note: serrh should not be stored in p->defaults.serrh
* If left as NULL, scripts (e.g. mod_cgi and mod_ssi exec) will inherit
* the current STDERR_FILENO, which already is the top-level breakagelog. */
/*p->defaults.serrh = serrh;*/
int errfd;
if (NULL != serrh) {
if (srv->errh->errorlog_mode == ERRORLOG_FD) {
srv->errh->errorlog_fd = dup(STDERR_FILENO);
fdevent_setfd_cloexec(srv->errh->errorlog_fd);
}
errfd = serrh->errorlog_fd;
if (*serrh->fn == '|') fdevent_breakagelog_logger_pipe(errfd);
}
else if (!srv->srvconf.dont_daemonize) {
/* move STDERR_FILENO to /dev/null */
if (-1 == (errfd = fdevent_open_devnull())) {
log_perror(srv->errh,__FILE__,__LINE__,"opening /dev/null failed");
return -1;
}
}
else {
/*(leave STDERR_FILENO as-is)*/
errfd = -1;
}
if (0 != fdevent_set_stdin_stdout_stderr(-1, -1, errfd)) {
log_perror(srv->errh, __FILE__, __LINE__, "setting stderr failed");
#ifdef FD_CLOEXEC
if (-1 != errfd && NULL == serrh) close(errfd);
#endif
return -1;
}
#ifdef FD_CLOEXEC
if (-1 != errfd && NULL == serrh) close(errfd);
#endif
if (NULL != serrh) {
close(errfd); /* serrh->errorlog_fd */
serrh->errorlog_fd = STDERR_FILENO;
}
return 0;
}
/**
* cycle the errorlog
*
*/
void config_log_error_cycle(server *srv) {
/* All logs are rotated in parent and children workers so that all have
* valid filehandles. The parent might reap a child and respawn, so the
* parent needs valid handles for more than top-level srv->errh */
/*(no need to flush error log before cycling; error logs are not buffered)*/
config_data_base * const p = srv->config_data_base;
/* future: might be slightly faster to have allocated array of open files
* rather than walking config, but only might matter with many directives */
/* (init i to 0 if global context; to 1 to skip empty global context) */
for (int i = !p->cvlist[0].v.u2[1]; i < p->nconfig; ++i) {
config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0];
for (; -1 != cpv->k_id; ++cpv) {
if (cpv->vtype != T_CONFIG_LOCAL || NULL == cpv->v.v) continue;
log_error_st *errh;
switch (cpv->k_id) {
case 31:/* server.errorlog */
case 32:/* server.breakagelog */
errh = cpv->v.v; /* cycle only if the error log is a file */
if (errh->errorlog_mode != ERRORLOG_FILE) continue;
if (-1 == fdevent_cycle_logger(errh->fn, &errh->errorlog_fd)) {
/* write to top-level error log
* (the prior log if srv->errh is the one being cycled) */
log_perror(srv->errh, __FILE__, __LINE__,
"cycling errorlog '%s' failed", errh->fn);
}
else if (0 == i && errh != srv->errh) { /*(server.breakagelog)*/
int fd = errh->errorlog_fd;
if (STDERR_FILENO != dup2(fd, STDERR_FILENO)) {
errh->errorlog_fd = STDERR_FILENO;
close(fd);
}
else {
log_perror(srv->errh, __FILE__, __LINE__,
"dup2() %s to STDERR failed", errh->fn);
}
}
break;
default:
break;
}
}
}
}
void config_log_error_close(server *srv) {
config_data_base * const p = srv->config_data_base;
if (NULL == p) return;
/* future: might be slightly faster to have allocated array of open files
* rather than walking config, but only might matter with many directives */
/* (init i to 0 if global context; to 1 to skip empty global context) */
for (int i = !p->cvlist[0].v.u2[1]; i < p->nconfig; ++i) {
config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0];
for (; -1 != cpv->k_id; ++cpv) {
if (cpv->vtype != T_CONFIG_LOCAL || NULL == cpv->v.v) continue;
log_error_st *errh = NULL;
switch (cpv->k_id) {
/* NB: these indexes are repeated below switch() block
* and all must stay in sync with configfile.c */
case 31:/* server.errorlog */
if (0 == i) continue; /*(srv->errh is free'd later)*/
__attribute_fallthrough__
case 32:/* server.breakagelog */
errh = cpv->v.v; /* cycle only if the error log is a file */
break;
default:
break;
}
if (NULL == errh) continue;
switch(errh->errorlog_mode) {
case ERRORLOG_PIPE:
case ERRORLOG_FILE:
case ERRORLOG_FD:
if (-1 != errh->errorlog_fd) {
/* don't close STDERR */
/* fdevent_close_logger_pipes() closes ERRORLOG_PIPE */
if (STDERR_FILENO != errh->errorlog_fd
&& ERRORLOG_PIPE != errh->errorlog_mode) {
close(errh->errorlog_fd);
}
errh->errorlog_fd = -1;
}
break;
case ERRORLOG_SYSLOG: /*(restricted to global scope)*/
#ifdef HAVE_SYSLOG_H
closelog();
#endif
break;
}
log_error_st_free(errh);
}
}
fdevent_close_logger_pipes();
if (srv->errh->errorlog_mode == ERRORLOG_SYSLOG) {
srv->errh->errorlog_mode = ERRORLOG_FD;
srv->errh->errorlog_fd = STDERR_FILENO;
#ifdef HAVE_SYSLOG_H
closelog();
#endif
}
}
typedef struct {
const char *source;
const char *input;
size_t offset;
size_t size;
int line_pos;
int line;
int in_key;
int in_brace;
int in_cond;
int simulate_eol;
} tokenizer_t;
static int config_skip_newline(tokenizer_t *t) {
int skipped = 1;
force_assert(t->input[t->offset] == '\r' || t->input[t->offset] == '\n');
if (t->input[t->offset] == '\r' && t->input[t->offset + 1] == '\n') {
skipped ++;
t->offset ++;
}
t->offset ++;
return skipped;
}
static int config_skip_comment(tokenizer_t *t) {
int i;
force_assert(t->input[t->offset] == '#');
for (i = 1; t->input[t->offset + i] &&
(t->input[t->offset + i] != '\n' && t->input[t->offset + i] != '\r');
i++);
t->offset += i;
return i;
}
__attribute_cold__
static int config_tokenizer_err(server *srv, const char *file, unsigned int line, tokenizer_t *t, const char *msg) {
log_error(srv->errh, file, line, "source: %s line: %d pos: %d %s",
t->source, t->line, t->line_pos, msg);
return -1;
}
static int config_tokenizer(server *srv, tokenizer_t *t, int *token_id, buffer *token) {
int tid = 0;
size_t i;
if (t->simulate_eol) {
t->simulate_eol = 0;
t->in_key = 1;
tid = TK_EOL;
buffer_copy_string_len(token, CONST_STR_LEN("(EOL)"));
}
while (tid == 0 && t->offset < t->size && t->input[t->offset]) {
char c = t->input[t->offset];
const char *start = NULL;
switch (c) {
case '=':
if (t->in_brace) {
if (t->input[t->offset + 1] == '>') {
t->offset += 2;
buffer_copy_string_len(token, CONST_STR_LEN("=>"));
tid = TK_ARRAY_ASSIGN;
} else {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"use => for assignments in arrays");
}
} else if (t->in_cond) {
if (t->input[t->offset + 1] == '=') {
t->offset += 2;
buffer_copy_string_len(token, CONST_STR_LEN("=="));
tid = TK_EQ;
} else if (t->input[t->offset + 1] == '~') {
t->offset += 2;
buffer_copy_string_len(token, CONST_STR_LEN("=~"));
tid = TK_MATCH;
} else {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"only =~ and == are allowed in the condition");
}
t->in_key = 1;
t->in_cond = 0;
} else if (t->in_key) {
tid = TK_ASSIGN;
buffer_copy_string_len(token, t->input + t->offset, 1);
t->offset++;
t->line_pos++;
} else {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"unexpected equal-sign: =");
}
break;
case '!':
if (t->in_cond) {
if (t->input[t->offset + 1] == '=') {
t->offset += 2;
buffer_copy_string_len(token, CONST_STR_LEN("!="));
tid = TK_NE;
} else if (t->input[t->offset + 1] == '~') {
t->offset += 2;
buffer_copy_string_len(token, CONST_STR_LEN("!~"));
tid = TK_NOMATCH;
} else {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"only !~ and != are allowed in the condition");
}
t->in_key = 1;
t->in_cond = 0;
} else {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"unexpected exclamation-marks: !");
}
break;
case '\t':
case ' ':
t->offset++;
t->line_pos++;
break;
case '\n':
case '\r':
if (t->in_brace == 0) {
int done = 0;
while (!done && t->offset < t->size) {
switch (t->input[t->offset]) {
case '\r':
case '\n':
config_skip_newline(t);
t->line_pos = 1;
t->line++;
break;
case '#':
t->line_pos += config_skip_comment(t);
break;
case '\t':
case ' ':
t->offset++;
t->line_pos++;
break;
default:
done = 1;
}
}
t->in_key = 1;
tid = TK_EOL;
buffer_copy_string_len(token, CONST_STR_LEN("(EOL)"));
} else {
config_skip_newline(t);
t->line_pos = 1;
t->line++;
}
break;
case ',':
if (t->in_brace > 0) {
tid = TK_COMMA;
buffer_copy_string_len(token, CONST_STR_LEN("(COMMA)"));
}
t->offset++;
t->line_pos++;
break;
case '"':
/* search for the terminating " */
start = t->input + t->offset + 1;
buffer_copy_string_len(token, CONST_STR_LEN(""));
for (i = 1; t->input[t->offset + i]; i++) {
if (t->input[t->offset + i] == '\\' &&
t->input[t->offset + i + 1] == '"') {
buffer_append_string_len(token, start, t->input + t->offset + i - start);
start = t->input + t->offset + i + 1;
/* skip the " */
i++;
continue;
}
if (t->input[t->offset + i] == '"') {
tid = TK_STRING;
buffer_append_string_len(token, start, t->input + t->offset + i - start);
break;
}
}
if (t->input[t->offset + i] == '\0') {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"missing closing quote");
}
t->offset += i + 1;
t->line_pos += i + 1;
break;
case '(':
t->offset++;
t->in_brace++;
tid = TK_LPARAN;
buffer_copy_string_len(token, CONST_STR_LEN("("));
break;
case ')':
t->offset++;
t->in_brace--;
tid = TK_RPARAN;
buffer_copy_string_len(token, CONST_STR_LEN(")"));
break;
case '$':
t->offset++;
tid = TK_DOLLAR;
t->in_cond = 1;
t->in_key = 0;
buffer_copy_string_len(token, CONST_STR_LEN("$"));
break;
case '+':
if (t->input[t->offset + 1] == '=') {
t->offset += 2;
buffer_copy_string_len(token, CONST_STR_LEN("+="));
tid = TK_APPEND;
} else {
t->offset++;
tid = TK_PLUS;
buffer_copy_string_len(token, CONST_STR_LEN("+"));
}
break;
case ':':
if (t->input[t->offset+1] == '=') {
t->offset += 2;
tid = TK_FORCE_ASSIGN;
buffer_copy_string_len(token, CONST_STR_LEN(":="));
} else {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"unexpected character ':'");
}
break;
case '{':
t->offset++;
tid = TK_LCURLY;
buffer_copy_string_len(token, CONST_STR_LEN("{"));
break;
case '}':
t->offset++;
tid = TK_RCURLY;
buffer_copy_string_len(token, CONST_STR_LEN("}"));
for (; t->offset < t->size; ++t->offset,++t->line_pos) {
c = t->input[t->offset];
if (c == '\r' || c == '\n') {
break;
}
else if (c == '#') {
t->line_pos += config_skip_comment(t);
break;
}
else if (c != ' ' && c != '\t') {
t->simulate_eol = 1;
break;
} /* else (c == ' ' || c == '\t') */
}
break;
case '[':
t->offset++;
tid = TK_LBRACKET;
buffer_copy_string_len(token, CONST_STR_LEN("["));
break;
case ']':
t->offset++;
tid = TK_RBRACKET;
buffer_copy_string_len(token, CONST_STR_LEN("]"));
break;
case '#':
t->line_pos += config_skip_comment(t);
break;
default:
if (t->in_cond) {
for (i = 0; t->input[t->offset + i] &&
(isalpha((unsigned char)t->input[t->offset + i])
|| t->input[t->offset + i] == '_'); ++i);
if (i && t->input[t->offset + i]) {
tid = TK_SRVVARNAME;
buffer_copy_string_len(token, t->input + t->offset, i);
t->offset += i;
t->line_pos += i;
} else {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"invalid character in condition");
}
} else if (isdigit((unsigned char)c)) {
/* take all digits */
for (i = 0; t->input[t->offset + i] && isdigit((unsigned char)t->input[t->offset + i]); i++);
/* was there it least a digit ? */
if (i) {
tid = TK_INTEGER;
buffer_copy_string_len(token, t->input + t->offset, i);
t->offset += i;
t->line_pos += i;
}
} else {
/* the key might consist of [-.0-9a-z] */
for (i = 0; t->input[t->offset + i] &&
(isalnum((unsigned char)t->input[t->offset + i]) ||
t->input[t->offset + i] == '.' ||
t->input[t->offset + i] == '_' || /* for env.* */
t->input[t->offset + i] == '-'
); i++);
if (i && t->input[t->offset + i]) {
buffer_copy_string_len(token, t->input + t->offset, i);
if (strcmp(token->ptr, "include") == 0) {
tid = TK_INCLUDE;
} else if (strcmp(token->ptr, "include_shell") == 0) {
tid = TK_INCLUDE_SHELL;
} else if (strcmp(token->ptr, "global") == 0) {
tid = TK_GLOBAL;
} else if (strcmp(token->ptr, "else") == 0) {
tid = TK_ELSE;
} else {
tid = TK_LKEY;
}
t->offset += i;
t->line_pos += i;
} else if (0 == i
&& ((uint8_t *)t->input)[t->offset+0] == 0xc2
&& ((uint8_t *)t->input)[t->offset+1] == 0xa0) {
/* treat U+00A0 (c2 a0) "NO-BREAK SPACE" as whitespace */
/* http://www.fileformat.info/info/unicode/char/a0/index.htm */
t->offset+=2;
t->line_pos+=2;
} else {
return config_tokenizer_err(srv, __FILE__, __LINE__, t,
"invalid character in variable name");
}
}
break;
}
}
if (tid) {
*token_id = tid;
return 1;
} else if (t->offset < t->size) {
log_error(srv->errh, __FILE__, __LINE__, "%d, %s", tid, token->ptr);
}
return 0;
}
static int config_parse(server *srv, config_t *context, const char *source, const char *input, size_t isize) {
void *pParser;
buffer *token, *lasttoken;
int token_id = 0;
int ret;
tokenizer_t t;
t.source = source;
t.input = input;
t.size = isize;
t.offset = 0;
t.line = 1;
t.line_pos = 1;
t.in_key = 1;
t.in_brace = 0;
t.in_cond = 0;
t.simulate_eol = 0;
pParser = configparserAlloc( malloc );
force_assert(pParser);
lasttoken = buffer_init();
token = buffer_init();
while((1 == (ret = config_tokenizer(srv, &t, &token_id, token))) && context->ok) {
buffer_copy_buffer(lasttoken, token);
configparser(pParser, token_id, token, context);
token = buffer_init();
}
buffer_free(token);
if (ret != -1 && context->ok) {
/* add an EOL at EOF, better than say sorry */
configparser(pParser, TK_EOL, buffer_init_string("(EOL)"), context);
if (context->ok) {
configparser(pParser, 0, NULL, context);
}
}
configparserFree(pParser, free);
if (ret == -1) {
log_error(srv->errh, __FILE__, __LINE__,
"configfile parser failed at: %s", lasttoken->ptr);
} else if (context->ok == 0) {
log_error(srv->errh, __FILE__, __LINE__, "source: %s line: %d pos: %d "
"parser failed somehow near here: %s",
t.source, t.line, t.line_pos, lasttoken->ptr);
ret = -1;
}
buffer_free(lasttoken);
return ret == -1 ? -1 : 0;
}
__attribute_cold__
static int config_parse_stdin(server *srv, config_t *context) {
buffer * const b = chunk_buffer_acquire();
size_t dlen;
ssize_t n = -1;
do {
if (n > 0)
buffer_commit(b, n);
size_t avail = buffer_string_space(b);
dlen = buffer_clen(b);
if (__builtin_expect( (avail < 1024), 0)) {
/*(arbitrary limit: 32 MB file; expect < 1 MB)*/
if (dlen >= 32*1024*1024) {
log_error(srv->errh, __FILE__, __LINE__,
"config read from stdin is way too large");
break;
}
avail = chunk_buffer_prepare_append(b, b->size+avail);
}
n = read(STDIN_FILENO, b->ptr+dlen, avail);
} while (n > 0 || (n == -1 && errno == EINTR));
int rc = -1;
if (0 == n)
rc = dlen ? config_parse(srv, context, "-", b->ptr, dlen) : 0;
else
log_perror(srv->errh, __FILE__, __LINE__, "config read from stdin");
if (dlen)
ck_memzero(b->ptr, dlen);
chunk_buffer_release(b);
return rc;
}
static int config_parse_file_stream(server *srv, config_t *context, const char *fn) {
off_t dlen = 32*1024*1024;/*(arbitrary limit: 32 MB file; expect < 1 MB)*/
char *data = fdevent_load_file(fn, &dlen, NULL, malloc, free);
if (NULL == data) {
log_perror(srv->errh, __FILE__, __LINE__,
"opening configfile %s failed", fn);
return -1;
}
int rc = 0;
if (dlen) {
rc = config_parse(srv, context, fn, data, (size_t)dlen);
ck_memzero(data, (size_t)dlen);
}
free(data);
return rc;
}
int config_parse_file(server *srv, config_t *context, const char *fn) {
buffer * const filename = buffer_init();
const size_t fnlen = strlen(fn);
int ret = -1;
#ifdef GLOB_BRACE
int flags = GLOB_BRACE;
#else
int flags = 0;
#endif
glob_t gl;
if ((fn[0] == '/' || fn[0] == '\\') ||
(fn[0] == '.' && (fn[1] == '/' || fn[1] == '\\')) ||
(fn[0] == '.' && fn[1] == '.' && (fn[2] == '/' || fn[2] == '\\'))) {
buffer_copy_string_len(filename, fn, fnlen);
} else {
buffer_copy_path_len2(filename, BUF_PTR_LEN(context->basedir),
fn, fnlen);
}
switch (glob(filename->ptr, flags, NULL, &gl)) {
case 0:
for (size_t i = 0; i < gl.gl_pathc; ++i) {
ret = config_parse_file_stream(srv, context, gl.gl_pathv[i]);
if (0 != ret) break;
}
globfree(&gl);
break;
case GLOB_NOMATCH:
if (filename->ptr[strcspn(filename->ptr, "*?[]{}")] != '\0') { /*(contains glob metachars)*/
ret = 0; /* not an error if no files match glob pattern */
}
else {
log_error(srv->errh, __FILE__, __LINE__, "include file not found: %s", filename->ptr);
}
break;
case GLOB_ABORTED:
case GLOB_NOSPACE:
log_perror(srv->errh, __FILE__, __LINE__, "glob() %s failed", filename->ptr);
break;
}
buffer_free(filename);
return ret;
}
#ifdef __CYGWIN__
static char* getCWD(char *buf, size_t sz) {
if (NULL == getcwd(buf, sz)) {
return NULL;
}
for (size_t i = 0; buf[i]; ++i) {
if (buf[i] == '\\') buf[i] = '/';
}
return buf;
}
#define getcwd(buf, sz) getCWD((buf),(sz))
#endif /* __CYGWIN__ */
int config_parse_cmd(server *srv, config_t *context, const char *cmd) {
int ret = 0;
int fds[2];
char oldpwd[PATH_MAX];
if (NULL == getcwd(oldpwd, sizeof(oldpwd))) {
log_perror(srv->errh, __FILE__, __LINE__, "getcwd()");
return -1;
}
if (!buffer_is_blank(context->basedir)) {
if (0 != chdir(context->basedir->ptr)) {
log_perror(srv->errh, __FILE__, __LINE__,
"cannot change directory to %s", context->basedir->ptr);
return -1;
}
}
if (pipe(fds)) {