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d8e1f07a93
nginx/src/http/ngx_http.c
Igor Sysoev d8e1f07a93 nginx-0.0.1-2004-01-22-09:47:28 import
2004-01-22 06:47:28 +00:00

587 lines
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#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>
#include <ngx_http.h>
static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
int ngx_http_max_module;
ngx_uint_t ngx_http_total_requests;
uint64_t ngx_http_total_sent;
int (*ngx_http_top_header_filter) (ngx_http_request_t *r);
int (*ngx_http_top_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch);
static ngx_str_t http_name = ngx_string("http");
static ngx_command_t ngx_http_commands[] = {
{ngx_string("http"),
NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
ngx_http_block,
0,
0,
NULL},
ngx_null_command
};
ngx_module_t ngx_http_module = {
NGX_MODULE,
&http_name, /* module context */
ngx_http_commands, /* module directives */
NGX_CORE_MODULE, /* module type */
NULL, /* init module */
NULL /* init child */
};
static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
int mi, m, s, l, p, a, n;
int port_found, addr_found, virtual_names;
char *rv;
struct sockaddr_in *addr_in;
ngx_conf_t pcf;
ngx_array_t in_ports;
ngx_listening_t *ls;
ngx_http_listen_t *lscf;
ngx_http_module_t *module;
ngx_http_handler_pt *h;
ngx_http_conf_ctx_t *ctx;
ngx_http_in_port_t *in_port, *inport;
ngx_http_in_addr_t *in_addr, *inaddr;
ngx_http_server_name_t *s_name, *name;
ngx_http_core_srv_conf_t **cscfp, *cscf;
ngx_http_core_loc_conf_t **clcfp, *clcf;
ngx_http_core_main_conf_t *cmcf;
#if (WIN32)
ngx_iocp_conf_t *iocpcf;
#endif
/* the main http context */
ngx_test_null(ctx,
ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)),
NGX_CONF_ERROR);
*(ngx_http_conf_ctx_t **) conf = ctx;
/* count the number of the http modules and set up their indices */
ngx_http_max_module = 0;
for (m = 0; ngx_modules[m]; m++) {
if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
continue;
}
ngx_modules[m]->ctx_index = ngx_http_max_module++;
}
/* the main http main_conf, it's the same in the all http contexts */
ngx_test_null(ctx->main_conf,
ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
NGX_CONF_ERROR);
/* the http null srv_conf, it's used to merge the server{}s' srv_conf's */
ngx_test_null(ctx->srv_conf,
ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
NGX_CONF_ERROR);
/* the http null loc_conf, it's used to merge the server{}s' loc_conf's */
ngx_test_null(ctx->loc_conf,
ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
NGX_CONF_ERROR);
/* create the main_conf, srv_conf and loc_conf in all http modules */
for (m = 0; ngx_modules[m]; m++) {
if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
continue;
}
module = ngx_modules[m]->ctx;
mi = ngx_modules[m]->ctx_index;
if (module->pre_conf) {
if (module->pre_conf(cf) != NGX_OK) {
return NGX_CONF_ERROR;
}
}
if (module->create_main_conf) {
ngx_test_null(ctx->main_conf[mi], module->create_main_conf(cf),
NGX_CONF_ERROR);
}
if (module->create_srv_conf) {
ngx_test_null(ctx->srv_conf[mi], module->create_srv_conf(cf),
NGX_CONF_ERROR);
}
if (module->create_loc_conf) {
ngx_test_null(ctx->loc_conf[mi], module->create_loc_conf(cf),
NGX_CONF_ERROR);
}
}
/* parse inside the http{} block */
pcf = *cf;
cf->ctx = ctx;
cf->module_type = NGX_HTTP_MODULE;
cf->cmd_type = NGX_HTTP_MAIN_CONF;
rv = ngx_conf_parse(cf, NULL);
if (rv != NGX_CONF_OK) {
*cf = pcf;
return rv;
}
/*
* init http{} main_conf's, merge the server{}s' srv_conf's
* and its location{}s' loc_conf's
*/
cmcf = ctx->main_conf[ngx_http_core_module.ctx_index];
cscfp = cmcf->servers.elts;
for (m = 0; ngx_modules[m]; m++) {
if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
continue;
}
module = ngx_modules[m]->ctx;
mi = ngx_modules[m]->ctx_index;
/* init http{} main_conf's */
if (module->init_main_conf) {
rv = module->init_main_conf(cf, ctx->main_conf[mi]);
if (rv != NGX_CONF_OK) {
*cf = pcf;
return rv;
}
}
for (s = 0; s < cmcf->servers.nelts; s++) {
/* merge the server{}s' srv_conf's */
if (module->merge_srv_conf) {
rv = module->merge_srv_conf(cf,
ctx->srv_conf[mi],
cscfp[s]->ctx->srv_conf[mi]);
if (rv != NGX_CONF_OK) {
*cf = pcf;
return rv;
}
}
if (module->merge_loc_conf) {
/* merge the server{}'s loc_conf */
rv = module->merge_loc_conf(cf,
ctx->loc_conf[mi],
cscfp[s]->ctx->loc_conf[mi]);
if (rv != NGX_CONF_OK) {
*cf = pcf;
return rv;
}
/* merge the locations{}' loc_conf's */
clcfp = (ngx_http_core_loc_conf_t **)cscfp[s]->locations.elts;
for (l = 0; l < cscfp[s]->locations.nelts; l++) {
rv = module->merge_loc_conf(cf,
cscfp[s]->ctx->loc_conf[mi],
clcfp[l]->loc_conf[mi]);
if (rv != NGX_CONF_OK) {
*cf = pcf;
return rv;
}
}
}
}
}
/* we needed "http"'s cf->ctx while merging configuration */
*cf = pcf;
/* init lists of the handlers */
ngx_init_array(cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers,
cf->cycle->pool, 10, sizeof(ngx_http_handler_pt),
NGX_CONF_ERROR);
cmcf->phases[NGX_HTTP_REWRITE_PHASE].type = NGX_OK;
ngx_init_array(cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].handlers,
cf->cycle->pool, 1, sizeof(ngx_http_handler_pt),
NGX_CONF_ERROR);
cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].type = NGX_OK;
ngx_test_null(h, ngx_push_array(
&cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].handlers),
NGX_CONF_ERROR);
*h = ngx_http_find_location_config;
ngx_init_array(cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers,
cf->cycle->pool, 10, sizeof(ngx_http_handler_pt),
NGX_CONF_ERROR);
cmcf->phases[NGX_HTTP_CONTENT_PHASE].type = NGX_OK;
/* create the lists of the ports, the addresses and the server names
to allow quickly find the server core module configuration at run-time */
ngx_init_array(in_ports, cf->pool, 10, sizeof(ngx_http_in_port_t),
NGX_CONF_ERROR);
/* "server" directives */
cscfp = cmcf->servers.elts;
for (s = 0; s < cmcf->servers.nelts; s++) {
/* "listen" directives */
lscf = cscfp[s]->listen.elts;
for (l = 0; l < cscfp[s]->listen.nelts; l++) {
port_found = 0;
/* AF_INET only */
in_port = in_ports.elts;
for (p = 0; p < in_ports.nelts; p++) {
if (lscf[l].port == in_port[p].port) {
/* the port is already in the port list */
port_found = 1;
addr_found = 0;
in_addr = in_port[p].addrs.elts;
for (a = 0; a < in_port[p].addrs.nelts; a++) {
if (lscf[l].addr == in_addr[a].addr) {
/* the address is already bound to this port */
/* "server_name" directives */
s_name = cscfp[s]->server_names.elts;
for (n = 0; n < cscfp[s]->server_names.nelts; n++) {
/* add the server name and server core module
configuration to the address:port */
/* TODO: duplicate names can be checked here */
ngx_test_null(name,
ngx_push_array(&in_addr[a].names),
NGX_CONF_ERROR);
name->name = s_name[n].name;
name->core_srv_conf = s_name[n].core_srv_conf;
}
/* check duplicate "default" server that
serves this address:port */
if (lscf[l].flags & NGX_HTTP_DEFAULT_SERVER) {
if (in_addr[a].flags
& NGX_HTTP_DEFAULT_SERVER) {
ngx_log_error(NGX_LOG_ERR, cf->log, 0,
"duplicate default server in %s:%d",
lscf[l].file_name.data,
lscf[l].line);
return NGX_CONF_ERROR;
}
in_addr[a].flags |= NGX_HTTP_DEFAULT_SERVER;
in_addr[a].core_srv_conf = cscfp[s];
}
addr_found = 1;
break;
} else if (in_addr[a].addr == INADDR_ANY) {
/* "*:port" must be the last resort so move it
to the end of the address list and add
the new address at its place */
ngx_test_null(inaddr,
ngx_push_array(&in_port[p].addrs),
NGX_CONF_ERROR);
ngx_memcpy(inaddr, &in_addr[a],
sizeof(ngx_http_in_addr_t));
in_addr[a].addr = lscf[l].addr;
in_addr[a].flags = lscf[l].flags;
in_addr[a].core_srv_conf = cscfp[s];
/* create the empty list of the server names that
can be served on this address:port */
ngx_init_array(inaddr->names, cf->pool, 10,
sizeof(ngx_http_server_name_t),
NGX_CONF_ERROR);
addr_found = 1;
break;
}
}
if (!addr_found) {
/* add the address to the addresses list that
bound to this port */
ngx_test_null(inaddr,
ngx_push_array(&in_port[p].addrs),
NGX_CONF_ERROR);
inaddr->addr = lscf[l].addr;
inaddr->flags = lscf[l].flags;
inaddr->core_srv_conf = cscfp[s];
/* create the empty list of the server names that
can be served on this address:port */
ngx_init_array(inaddr->names, cf->pool, 10,
sizeof(ngx_http_server_name_t),
NGX_CONF_ERROR);
}
}
}
if (!port_found) {
/* add the port to the in_port list */
ngx_test_null(in_port,
ngx_push_array(&in_ports),
NGX_CONF_ERROR);
in_port->port = lscf[l].port;
ngx_test_null(in_port->port_name.data, ngx_palloc(cf->pool, 7),
NGX_CONF_ERROR);
in_port->port_name.len = ngx_snprintf(in_port->port_name.data,
7, ":%d",
in_port->port);
/* create list of the addresses that bound to this port ... */
ngx_init_array(in_port->addrs, cf->pool, 10,
sizeof(ngx_http_in_addr_t),
NGX_CONF_ERROR);
ngx_test_null(inaddr, ngx_push_array(&in_port->addrs),
NGX_CONF_ERROR);
/* ... and add the address to this list */
inaddr->addr = lscf[l].addr;
inaddr->flags = lscf[l].flags;
inaddr->core_srv_conf = cscfp[s];
/* create the empty list of the server names that
can be served on this address:port */
ngx_init_array(inaddr->names, cf->pool, 10,
sizeof(ngx_http_server_name_t),
NGX_CONF_ERROR);
}
}
}
/* optimize the lists of the ports, the addresses and the server names */
/* AF_INET only */
in_port = in_ports.elts;
for (p = 0; p < in_ports.nelts; p++) {
/* check whether the all server names point to the same server */
in_addr = in_port[p].addrs.elts;
for (a = 0; a < in_port[p].addrs.nelts; a++) {
virtual_names = 0;
name = in_addr[a].names.elts;
for (n = 0; n < in_addr[a].names.nelts; n++) {
if (in_addr[a].core_srv_conf != name[n].core_srv_conf) {
virtual_names = 1;
break;
}
}
/* if the all server names point to the same server
then we do not need to check them at run-time */
if (!virtual_names) {
in_addr[a].names.nelts = 0;
}
}
/* if there's the binding to "*:port" then we need to bind()
to "*:port" only and ignore the other bindings */
if (in_addr[a - 1].addr == INADDR_ANY) {
a--;
} else {
a = 0;
}
in_addr = in_port[p].addrs.elts;
while (a < in_port[p].addrs.nelts) {
ngx_test_null(ls, ngx_push_array(&cf->cycle->listening),
NGX_CONF_ERROR);
ngx_memzero(ls, sizeof(ngx_listening_t));
ngx_test_null(addr_in,
ngx_pcalloc(cf->pool, sizeof(struct sockaddr_in)),
NGX_CONF_ERROR);
addr_in->sin_family = AF_INET;
addr_in->sin_addr.s_addr = in_addr[a].addr;
addr_in->sin_port = htons((u_short) in_port[p].port);
ngx_test_null(ls->addr_text.data,
ngx_palloc(cf->pool, INET_ADDRSTRLEN + 6),
NGX_CONF_ERROR);
ls->addr_text.len =
ngx_snprintf(ls->addr_text.data
+ ngx_inet_ntop(AF_INET,
(char *) &in_addr[a].addr,
ls->addr_text.data,
INET_ADDRSTRLEN),
6, ":%d", in_port[p].port);
ls->fd = -1;
ls->family = AF_INET;
ls->type = SOCK_STREAM;
ls->protocol = IPPROTO_IP;
#if (WIN32)
ls->flags = WSA_FLAG_OVERLAPPED;
#endif
ls->sockaddr = (struct sockaddr *) addr_in;
ls->socklen = sizeof(struct sockaddr_in);
ls->addr = offsetof(struct sockaddr_in, sin_addr);
ls->addr_text_max_len = INET_ADDRSTRLEN;
ls->backlog = -1;
#if 0
#if 0
ls->nonblocking = 1;
#else
ls->nonblocking = 0;
#endif
#endif
ls->handler = ngx_http_init_connection;
cscf = in_addr[a].core_srv_conf;
ls->pool_size = cscf->connection_pool_size;
ls->post_accept_timeout = cscf->post_accept_timeout;
clcf = cscf->ctx->loc_conf[ngx_http_core_module.ctx_index];
ls->log = clcf->err_log;
#if (WIN32)
iocpcf = ngx_event_get_conf(cf->cycle->conf_ctx, ngx_iocp_module);
if (iocpcf->acceptex_read) {
ls->post_accept_buffer_size = cscf->client_header_buffer_size;
}
#endif
ls->ctx = ctx;
if (in_port[p].addrs.nelts > 1) {
in_addr = in_port[p].addrs.elts;
if (in_addr[in_port[p].addrs.nelts - 1].addr != INADDR_ANY) {
/* if this port has not the "*:port" binding then create
the separate ngx_http_in_port_t for the all bindings */
ngx_test_null(inport,
ngx_palloc(cf->pool,
sizeof(ngx_http_in_port_t)),
NGX_CONF_ERROR);
inport->port = in_port[p].port;
inport->port_name = in_port[p].port_name;
/* init list of the addresses ... */
ngx_init_array(inport->addrs, cf->pool, 1,
sizeof(ngx_http_in_addr_t),
NGX_CONF_ERROR);
/* ... and set up it with the first address */
inport->addrs.nelts = 1;
inport->addrs.elts = in_port[p].addrs.elts;
ls->servers = inport;
/* prepare for the next cycle */
in_port[p].addrs.elts = (char *) in_port[p].addrs.elts
+ in_port[p].addrs.size;
in_port[p].addrs.nelts--;
in_addr = (ngx_http_in_addr_t *) in_port[p].addrs.elts;
a = 0;
continue;
}
}
ls->servers = &in_port[p];
a++;
}
}
/* DEBUG STUFF */
in_port = in_ports.elts;
for (p = 0; p < in_ports.nelts; p++) {
ngx_log_debug(cf->log, "port: %d %08x" _ in_port[p].port _ &in_port[p]);
in_addr = in_port[p].addrs.elts;
for (a = 0; a < in_port[p].addrs.nelts; a++) {
char ip[20];
ngx_inet_ntop(AF_INET, (char *) &in_addr[a].addr, ip, 20);
ngx_log_debug(cf->log, "%s %08x" _ ip _ in_addr[a].core_srv_conf);
s_name = in_addr[a].names.elts;
for (n = 0; n < in_addr[a].names.nelts; n++) {
ngx_log_debug(cf->log, "%s %08x" _ s_name[n].name.data _
s_name[n].core_srv_conf);
}
}
}
/**/
return NGX_CONF_OK;
}
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