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[mod_alias] use config_plugin_values_init()

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personal/stbuehler/ci-build
Glenn Strauss 4 years ago
parent 3fabcc3653
commit d5782eba65
1 changed files with 107 additions and 129 deletions
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236
src/mod_alias.c
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@ -1,160 +1,138 @@
#include "first.h"
#include "base.h"
#include "log.h"
#include "array.h"
#include "buffer.h"
#include "log.h"
#include "plugin.h"
#include <stdlib.h>
#include <string.h>
/* plugin config for all request/connections */
typedef struct {
array *alias;
const array *alias;
} plugin_config;
typedef struct {
PLUGIN_DATA;
plugin_config **config_storage;
plugin_config conf;
PLUGIN_DATA;
plugin_config defaults;
plugin_config conf;
} plugin_data;
/* init the plugin data */
INIT_FUNC(mod_alias_init) {
plugin_data *p;
p = calloc(1, sizeof(*p));
return p;
return calloc(1, sizeof(plugin_data));
}
/* detroy the plugin data */
FREE_FUNC(mod_alias_free) {
plugin_data *p = p_d;
if (!p) return HANDLER_GO_ON;
if (p->config_storage) {
size_t i;
plugin_data *p = p_d;
if (!p) return HANDLER_GO_ON;
UNUSED(srv);
for (i = 0; i < srv->config_context->used; i++) {
plugin_config *s = p->config_storage[i];
free(p->cvlist);
free(p);
if (NULL == s) continue;
array_free(s->alias);
free(s);
}
free(p->config_storage);
}
free(p);
return HANDLER_GO_ON;
return HANDLER_GO_ON;
}
/* handle plugin config and check values */
SETDEFAULTS_FUNC(mod_alias_set_defaults) {
plugin_data *p = p_d;
size_t i = 0;
config_values_t cv[] = {
{ "alias.url", NULL, T_CONFIG_ARRAY, T_CONFIG_SCOPE_CONNECTION }, /* 0 */
{ NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
};
if (!p) return HANDLER_ERROR;
p->config_storage = calloc(srv->config_context->used, sizeof(plugin_config *));
for (i = 0; i < srv->config_context->used; i++) {
data_config const* config = (data_config const*)srv->config_context->data[i];
plugin_config *s;
s = calloc(1, sizeof(plugin_config));
s->alias = array_init();
cv[0].destination = s->alias;
p->config_storage[i] = s;
if (0 != config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION)) {
return HANDLER_ERROR;
}
if (!array_is_kvstring(s->alias)) {
log_error_write(srv, __FILE__, __LINE__, "s",
"unexpected value for alias.url; expected list of \"urlpath\" => \"filepath\"");
return HANDLER_ERROR;
}
if (s->alias->used >= 2) {
const array *a = s->alias;
size_t j, k;
for (j = 0; j < a->used; j ++) {
const buffer *prefix = &a->sorted[j]->key;
for (k = j + 1; k < a->used; k ++) {
const buffer *key = &a->sorted[k]->key;
if (buffer_string_length(key) < buffer_string_length(prefix)) {
break;
}
if (memcmp(key->ptr, prefix->ptr, buffer_string_length(prefix)) != 0) {
break;
}
/* ok, they have same prefix. check position */
const data_unset *dj = a->sorted[j];
const data_unset *dk = a->sorted[k];
const data_unset **data = (const data_unset **)a->data;
while (*data != dj && *data != dk) ++data;
if (*data == dj) {
log_error_write(srv, __FILE__, __LINE__, "SBSBS",
"url.alias: `", key, "' will never match as `", prefix, "' matched first");
return HANDLER_ERROR;
}
}
}
}
}
return HANDLER_GO_ON;
static void mod_alias_merge_config_cpv(plugin_config * const pconf, const config_plugin_value_t * const cpv) {
switch (cpv->k_id) { /* index into static config_plugin_keys_t cpk[] */
case 0: /* alias.url */
pconf->alias = cpv->v.a;
break;
default:/* should not happen */
return;
}
}
#define PATCH(x) \
p->conf.x = s->x;
static int mod_alias_patch_connection(server *srv, connection *con, plugin_data *p) {
size_t i, j;
plugin_config *s = p->config_storage[0];
PATCH(alias);
/* skip the first, the global context */
for (i = 1; i < srv->config_context->used; i++) {
if (!config_check_cond(con, i)) continue; /* condition not matched */
data_config *dc = (data_config *)srv->config_context->data[i];
s = p->config_storage[i];
static void mod_alias_merge_config(plugin_config * const pconf, const config_plugin_value_t *cpv) {
do {
mod_alias_merge_config_cpv(pconf, cpv);
} while ((++cpv)->k_id != -1);
}
/* merge config */
for (j = 0; j < dc->value->used; j++) {
data_unset *du = dc->value->data[j];
static void mod_alias_patch_config(connection * const con, plugin_data * const p) {
memcpy(&p->conf, &p->defaults, sizeof(plugin_config));
for (int i = 1, used = p->nconfig; i < used; ++i) {
if (config_check_cond(con, (uint32_t)p->cvlist[i].k_id))
mod_alias_merge_config(&p->conf, p->cvlist + p->cvlist[i].v.u2[0]);
}
}
if (buffer_is_equal_string(&du->key, CONST_STR_LEN("alias.url"))) {
PATCH(alias);
}
}
}
static int mod_alias_check_order(server * const srv, const array * const a) {
for (uint32_t j = 0; j < a->used; ++j) {
const buffer * const prefix = &a->sorted[j]->key;
const size_t plen = buffer_string_length(prefix);
for (uint32_t k = j + 1; k < a->used; ++k) {
const buffer * const key = &a->sorted[k]->key;
if (buffer_string_length(key) < plen) {
break;
}
if (memcmp(key->ptr, prefix->ptr, plen) != 0) {
break;
}
/* ok, they have same prefix. check position */
const data_unset *dj = a->sorted[j];
const data_unset *dk = a->sorted[k];
const data_unset **data = (const data_unset **)a->data;
while (*data != dj && *data != dk) ++data;
if (*data == dj) {
log_error(srv->errh, __FILE__, __LINE__,
"url.alias: `%s' will never match as `%s' matched first",
key->ptr, prefix->ptr);
return 0;
}
}
}
return 1;
}
return 0;
SETDEFAULTS_FUNC(mod_alias_set_defaults) {
static const config_plugin_keys_t cpk[] = {
{ CONST_STR_LEN("alias.url"),
T_CONFIG_ARRAY,
T_CONFIG_SCOPE_CONNECTION }
,{ NULL, 0,
T_CONFIG_UNSET,
T_CONFIG_SCOPE_UNSET }
};
plugin_data * const p = p_d;
if (!config_plugin_values_init(srv, p, cpk, "mod_alias"))
return HANDLER_ERROR;
/* process and validate 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) {
const 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: /* alias.url */
if (!array_is_kvstring(cpv->v.a)) {
log_error(srv->errh, __FILE__, __LINE__,
"unexpected value for %s; "
"expected list of \"urlpath\" => \"filepath\"",
cpk[cpv->k_id].k);
return HANDLER_ERROR;
}
if (cpv->v.a->used >= 2 && !mod_alias_check_order(srv,cpv->v.a))
return HANDLER_ERROR;
break;
default:/* should not happen */
break;
}
}
}
/* 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)
mod_alias_merge_config(&p->defaults, cpv);
}
return HANDLER_GO_ON;
}
#undef PATCH
PHYSICALPATH_FUNC(mod_alias_physical_handler) {
plugin_data *p = p_d;
@ -165,7 +143,8 @@ PHYSICALPATH_FUNC(mod_alias_physical_handler) {
if (0 == uri_len) return HANDLER_GO_ON;
mod_alias_patch_connection(srv, con, p);
mod_alias_patch_config(con, p);
if (NULL == p->conf.alias) return HANDLER_GO_ON;
/* do not include trailing slash on basedir */
basedir_len = buffer_string_length(con->physical.basedir);
@ -204,7 +183,6 @@ PHYSICALPATH_FUNC(mod_alias_physical_handler) {
return HANDLER_GO_ON;
}
/* this function is called at dlopen() time and inits the callbacks */
int mod_alias_plugin_init(plugin *p);
int mod_alias_plugin_init(plugin *p) {

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