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fastcgi_split_path_info

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This commit is contained in:
Igor Sysoev 2009-01-16 13:21:20 +00:00
parent 73f9bb4d01
commit 1b8267cea2
1 changed files with 205 additions and 45 deletions
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250
src/http/modules/ngx_http_fastcgi_module.c
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@ -22,6 +22,11 @@ typedef struct {
ngx_array_t *fastcgi_lengths;
ngx_array_t *fastcgi_values;
#if (NGX_PCRE)
ngx_regex_t *split_regex;
ngx_str_t split_name;
#endif
} ngx_http_fastcgi_loc_conf_t;
@ -56,6 +61,9 @@ typedef struct {
ngx_uint_t fastcgi_stdout; /* unsigned :1 */
ngx_array_t *split_parts;
ngx_str_t script_name;
ngx_str_t path_info;
} ngx_http_fastcgi_ctx_t;
@ -125,9 +133,15 @@ static char *ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf,
void *parent, void *child);
static ngx_int_t ngx_http_fastcgi_script_name_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data);
static ngx_int_t ngx_http_fastcgi_path_info_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data);
static ngx_int_t ngx_http_fastcgi_split(ngx_http_request_t *r,
ngx_http_fastcgi_ctx_t *f, ngx_http_fastcgi_loc_conf_t *flcf);
static char *ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_http_fastcgi_split_path_info(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
static char *ngx_http_fastcgi_store(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_http_fastcgi_lowat_check(ngx_conf_t *cf, void *post,
@ -171,6 +185,13 @@ static ngx_command_t ngx_http_fastcgi_commands[] = {
offsetof(ngx_http_fastcgi_loc_conf_t, index),
NULL },
{ ngx_string("fastcgi_split_path_info"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
ngx_http_fastcgi_split_path_info,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
{ ngx_string("fastcgi_store"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
ngx_http_fastcgi_store,
@ -390,8 +411,18 @@ static ngx_http_fastcgi_request_start_t ngx_http_fastcgi_request_start = {
};
static ngx_str_t ngx_http_fastcgi_script_name =
ngx_string("fastcgi_script_name");
static ngx_http_variable_t ngx_http_fastcgi_vars[] = {
{ ngx_string("fastcgi_script_name"), NULL,
ngx_http_fastcgi_script_name_variable, 0,
NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 },
{ ngx_string("fastcgi_path_info"), NULL,
ngx_http_fastcgi_path_info_variable, 0,
NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 },
{ ngx_null_string, NULL, NULL, 0, 0, 0 }
};
static ngx_str_t ngx_http_fastcgi_hide_headers[] = {
@ -410,6 +441,7 @@ ngx_http_fastcgi_handler(ngx_http_request_t *r)
{
ngx_int_t rc;
ngx_http_upstream_t *u;
ngx_http_fastcgi_ctx_t *f;
ngx_http_fastcgi_loc_conf_t *flcf;
if (r->subrequest_in_memory) {
@ -419,7 +451,12 @@ ngx_http_fastcgi_handler(ngx_http_request_t *r)
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
ngx_http_set_ctx(r, NULL, ngx_http_fastcgi_module);
f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t));
if (f == NULL) {
return NGX_ERROR;
}
ngx_http_set_ctx(r, f, ngx_http_fastcgi_module);
u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
if (u == NULL) {
@ -933,15 +970,6 @@ ngx_http_fastcgi_process_header(ngx_http_request_t *r)
umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
if (f == NULL) {
f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t));
if (f == NULL) {
return NGX_ERROR;
}
ngx_http_set_ctx(r, f, ngx_http_fastcgi_module);
}
u = r->upstream;
for ( ;; ) {
@ -1666,16 +1694,18 @@ ngx_http_fastcgi_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
static ngx_int_t
ngx_http_fastcgi_add_variables(ngx_conf_t *cf)
{
ngx_http_variable_t *var;
ngx_http_variable_t *var, *v;
var = ngx_http_add_variable(cf, &ngx_http_fastcgi_script_name,
NGX_HTTP_VAR_NOHASH|NGX_HTTP_VAR_NOCACHEABLE);
if (var == NULL) {
return NGX_ERROR;
for (v = ngx_http_fastcgi_vars; v->name.len; v++) {
var = ngx_http_add_variable(cf, &v->name, v->flags);
if (var == NULL) {
return NGX_ERROR;
}
var->get_handler = v->get_handler;
var->data = v->data;
}
var->get_handler = ngx_http_fastcgi_script_name_variable;
return NGX_OK;
}
@ -1933,6 +1963,13 @@ ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
conf->fastcgi_values = prev->fastcgi_values;
}
#if (NGX_PCRE)
if (conf->split_regex == NULL) {
conf->split_regex = prev->split_regex;
conf->split_name = prev->split_name;
}
#endif
if (conf->params_source == NULL) {
conf->flushes = prev->flushes;
conf->params_len = prev->params_len;
@ -2071,45 +2108,117 @@ ngx_http_fastcgi_script_name_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data)
{
u_char *p;
ngx_http_fastcgi_ctx_t *f;
ngx_http_fastcgi_loc_conf_t *flcf;
if (r->uri.len) {
f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module);
flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
if (ngx_http_fastcgi_split(r, f, flcf) != NGX_OK) {
return NGX_ERROR;
}
if (f->script_name.len == 0
|| f->script_name.data[f->script_name.len - 1] != '/')
{
v->len = f->script_name.len;
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
if (r->uri.data[r->uri.len - 1] != '/') {
v->len = r->uri.len;
v->data = r->uri.data;
return NGX_OK;
}
v->len = r->uri.len + flcf->index.len;
v->data = ngx_pnalloc(r->pool, v->len);
if (v->data == NULL) {
return NGX_ERROR;
}
p = ngx_copy(v->data, r->uri.data, r->uri.len);
ngx_memcpy(p, flcf->index.data, flcf->index.len);
} else {
v->len = 0;
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
v->data = NULL;
v->data = f->script_name.data;
return NGX_OK;
}
v->len = f->script_name.len + flcf->index.len;
v->data = ngx_pnalloc(r->pool, v->len);
if (v->data == NULL) {
return NGX_ERROR;
}
p = ngx_copy(v->data, f->script_name.data, f->script_name.len);
ngx_memcpy(p, flcf->index.data, flcf->index.len);
return NGX_OK;
}
static ngx_int_t
ngx_http_fastcgi_path_info_variable(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data)
{
ngx_http_fastcgi_ctx_t *f;
ngx_http_fastcgi_loc_conf_t *flcf;
f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module);
flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
if (ngx_http_fastcgi_split(r, f, flcf) != NGX_OK) {
return NGX_ERROR;
}
v->len = f->path_info.len;
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
v->data = f->path_info.data;
return NGX_OK;
}
static ngx_int_t
ngx_http_fastcgi_split(ngx_http_request_t *r, ngx_http_fastcgi_ctx_t *f,
ngx_http_fastcgi_loc_conf_t *flcf)
{
#if (NGX_PCRE)
ngx_int_t n;
int captures[(1 + 2) * 3];
if (f->script_name.len) {
return NGX_OK;
}
if (flcf->split_regex == NULL) {
f->script_name = r->uri;
return NGX_OK;
}
n = ngx_regex_exec(flcf->split_regex, &r->uri, captures, (1 + 2) * 3);
if (n == NGX_REGEX_NO_MATCHED) {
f->script_name = r->uri;
return NGX_OK;
}
if (n < 0) {
ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
n, &r->uri, &flcf->split_name);
return NGX_ERROR;
}
/* match */
f->script_name.len = captures[3] - captures[2];
f->script_name.data = r->uri.data;
f->path_info.len = captures[5] - captures[4];
f->path_info.data = r->uri.data + f->script_name.len;
return NGX_OK;
#else
f->script_name = r->uri;
return NGX_OK;
#endif
}
static char *
ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
@ -2171,6 +2280,57 @@ ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
}
static char *
ngx_http_fastcgi_split_path_info(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
#if (NGX_PCRE)
ngx_http_fastcgi_loc_conf_t *flcf = conf;
ngx_int_t n;
ngx_str_t *value, err;
u_char errstr[NGX_MAX_CONF_ERRSTR];
value = cf->args->elts;
flcf->split_name = value[1];
err.len = NGX_MAX_CONF_ERRSTR;
err.data = errstr;
flcf->split_regex = ngx_regex_compile(&value[1], 0, cf->pool, &err);
if (flcf->split_regex == NULL) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data);
return NGX_CONF_ERROR;
}
n = ngx_regex_capture_count(flcf->split_regex);
if (n < 0) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ngx_regex_capture_count_n " failed for "
"pattern \"%V\"", &value[1]);
return NGX_CONF_ERROR;
}
if (n != 2) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"pattern \"%V\" must have 2 captures", &value[1]);
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
#else
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"%V\" requires PCRE library", &cmd->name);
return NGX_CONF_ERROR;
#endif
}
static char *
ngx_http_fastcgi_store(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{