static ngx_int_t
ngx_http_status_codes_statistics(ngx_http_request_t *r)
{
ngx_http_traffic_status_rule_t *rucf = NULL;
rucf = ngx_http_get_module_srv_conf(r, ngx_http_traffic_status_module);
if (NULL == rucf)
{
return NGX_ERROR;
}
ngx_int_t index = r->headers_out.status;
if (index >= NGX_HTTP_OK && index < NGX_HTTP_LAST_LEVEL_500)
{
++rucf->status_codes_cnt[index - NGX_HTTP_OK];
}
/* request times */
++rucf->request_cnt;
/* recevie packet bytes */
rucf->recv_bytes += r->request_length;
/* send packet bytes */
rucf->send_bytes += r->connection->sent;
return NGX_HTTP_OK;
}
static void
ngx_http_zm_sso_cert_auth_on_failure(ngx_zm_lookup_work_t *w)
{
ngx_http_request_t *r;
ngx_http_ssl_srv_conf_t *hscf;
ngx_int_t rc;
r = w->data;
hscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
if (w->result == ZM_LOOKUP_LOGIN_FAILED) {
ngx_log_error (NGX_LOG_WARN, w->log, 0,
"login failed for subject dn %V during client cert auth"
", reason:%V", &w->username, &w->err);
if (hscf->verify == 1) {
// verify client cert mode is on
ngx_http_zm_sso_finalize_request(r, NGX_HTTP_FORBIDDEN);
} else {
// verify client cert mode is optional
rc = ngx_http_zm_sso_redirect (r);
ngx_http_zm_sso_finalize_request(r, rc);
}
} else {
ngx_http_zm_sso_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
}
}
static ngx_int_t
ngx_http_vhost_traffic_status_handler(ngx_http_request_t *r)
{
ngx_int_t rc;
ngx_http_vhost_traffic_status_ctx_t *ctx;
ngx_http_vhost_traffic_status_loc_conf_t *vtscf;
ngx_http_core_srv_conf_t *cscf;
ctx = ngx_http_get_module_main_conf(r, ngx_http_vhost_traffic_status_module);
vtscf = ngx_http_get_module_loc_conf(r, ngx_http_vhost_traffic_status_module);
if (!ctx->enable || !vtscf->enable) {
return NGX_DECLINED;
}
if (vtscf->shm_zone == NULL) {
return NGX_DECLINED;
}
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
rc = ngx_http_vhost_traffic_status_shm_add_server(r, ctx, cscf, vtscf);
if (rc != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"shm_add_server failed");
}
rc = ngx_http_vhost_traffic_status_shm_add_upstream(r, ctx, cscf, vtscf);
if (rc != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"shm_add_upstream failed");
}
return NGX_DECLINED;
}
static void
ngx_http_proxy_connect_read_hello_data(ngx_http_request_t *r)
{
ngx_int_t n;
ngx_buf_t *buf;
ngx_connection_t *c;
ngx_http_core_srv_conf_t *cscf;
ngx_http_proxy_connect_ctx_t *ctx;
c = r->connection;
ctx = ngx_http_get_module_ctx(r,ngx_http_proxy_connect_module);
buf = ctx->client_hello;
if (c->read->timedout) {
c->timedout = 1;
ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
return;
}
if (c->read->ready) {
n = c->recv(c, buf->start, 4096);
} else {
return;
}
if (n == NGX_AGAIN) {
if (!c->read->timer_set) {
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
ngx_add_timer(c->read, cscf->client_header_timeout);
}
if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
return;
}
if (n == 0) {
ngx_log_error(NGX_LOG_INFO, c->log, 0,
"client prematurely closed connection");
}
if (n == 0 || n == NGX_ERROR) {
c->error = 1;
c->log->action = "reading https client hello data";
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return;
}
if (c->read->timer_set) {
ngx_del_timer(c->read);
}
buf->last = buf->pos + n;
ngx_http_proxy_connect_upstream(r);
}
static ngx_http_google_ctx_t *
ngx_http_google_create_ctx(ngx_http_request_t * r)
{
ngx_http_google_loc_conf_t * glcf;
glcf = ngx_http_get_module_loc_conf(r, ngx_http_google_filter_module);
ngx_http_google_ctx_t * ctx;
ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_google_ctx_t));
if (!ctx) return NULL;
ctx->host = ngx_pcalloc(r->pool, sizeof(ngx_str_t));
if (!ctx->host) return NULL;
ctx->pass = ngx_pcalloc(r->pool, sizeof(ngx_str_t));
if (!ctx->pass) return NULL;
ctx->arg = ngx_pcalloc(r->pool, sizeof(ngx_str_t));
if (!ctx->arg) return NULL;
ctx->domain = ngx_pcalloc(r->pool, sizeof(ngx_str_t));
if (!ctx->domain) return NULL;
ctx->uri = &r->unparsed_uri;
ctx->host = &r->headers_in.host->value;
ctx->lang = &glcf->language;
ctx->type = ngx_http_google_type_main;
ngx_str_t domain = *ctx->host;
u_char * last = domain.data + domain.len, * find;
if ((find = ngx_strlchr(domain.data, last, ':'))) {
domain.len = find - domain.data;
}
ctx->domain->len = domain.len + 1;
ctx->domain->data = ngx_pcalloc(r->pool, ctx->domain->len);
if (!ctx->domain->data) return NULL;
ngx_snprintf(ctx->domain->data, ctx->domain->len, ".%V", &domain);
if (ngx_inet_addr(domain.data, domain.len) != INADDR_NONE) {
ctx->domain->data++;
ctx->domain->len --;
}
// default language
if (!ctx->lang->len) {
ngx_str_set(ctx->lang, "zh-CN");
}
ctx->robots = (ctx->uri->len == 11 &&
!ngx_strncmp(ctx->uri->data, "/robots.txt", 11));
#if (NGX_HTTP_SSL)
ngx_http_ssl_srv_conf_t * sscf;
sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
if (sscf->enable == 1) ctx->ssl = 1;
#endif
return ctx;
}
static ngx_int_t
ngx_http_rewrite_handler(ngx_http_request_t *r)
{
ngx_int_t index;
ngx_http_script_code_pt code;
ngx_http_script_engine_t *e;
ngx_http_core_srv_conf_t *cscf;
ngx_http_core_main_conf_t *cmcf;
ngx_http_rewrite_loc_conf_t *rlcf;
cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
index = cmcf->phase_engine.location_rewrite_index;
if (r->phase_handler == index && r->loc_conf == cscf->ctx->loc_conf) {
/* skipping location rewrite phase for server null location */
return NGX_DECLINED;
}
rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module);
if (rlcf->codes == NULL) {
return NGX_DECLINED;
}
e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t));
if (e == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
e->sp = ngx_pcalloc(r->pool,
rlcf->stack_size * sizeof(ngx_http_variable_value_t));
if (e->sp == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
e->ip = rlcf->codes->elts;
e->request = r;
e->quote = 1;
e->log = rlcf->log;
e->status = NGX_DECLINED;
while (*(uintptr_t *) e->ip) {
code = *(ngx_http_script_code_pt *) e->ip;
code(e);
}
if (e->status < NGX_HTTP_BAD_REQUEST) {
return e->status;
}
if (r->err_status == 0) {
return e->status;
}
return r->err_status;
}
static ngx_int_t
ngx_http_variable_server_name(ngx_http_request_t *r,
ngx_http_variable_value_t *v, uintptr_t data)
{
ngx_http_core_srv_conf_t *cscf;
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
v->len = cscf->server_name.len;
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
v->data = cscf->server_name.data;
return NGX_OK;
}
static ngx_int_t
ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
uintptr_t data)
{
ngx_http_core_srv_conf_t *cscf;
if (r->headers_in.server.len) {
v->len = r->headers_in.server.len;
v->data = r->headers_in.server.data;
} else {
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
v->len = cscf->server_name.len;
v->data = cscf->server_name.data;
}
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
return NGX_OK;
}
static int
ngx_http_ssl_npn_advertised(ngx_ssl_conn_t *ssl_conn,
const unsigned char **out, unsigned int *outlen, void *arg)
{
#if (NGX_HTTP_SPDY || NGX_DEBUG)
ngx_connection_t *c;
c = ngx_ssl_get_connection(ssl_conn);
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "SSL NPN advertised");
#endif
#if (NGX_HTTP_SPDY)
{
ngx_http_connection_t *hc;
ngx_http_spdy_srv_conf_t *sscf;
hc = c->data;
sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_spdy_module);
if (hc->addr_conf->spdy) {
if (sscf->version == NGX_SPDY_VERSION_V3) {
*out = (unsigned char *) NGX_SPDY_V3_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
*outlen = sizeof(NGX_SPDY_V3_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1;
} else {
*out = (unsigned char *) NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
*outlen = sizeof(NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1;
}
return SSL_TLSEXT_ERR_OK;
}
}
#endif
*out = (unsigned char *) NGX_HTTP_NPN_ADVERTISE;
*outlen = sizeof(NGX_HTTP_NPN_ADVERTISE) - 1;
return SSL_TLSEXT_ERR_OK;
}
static ngx_int_t
ngx_http_session_cookie_hash(ngx_http_request_t *r, ngx_str_t *cookie)
{
unsigned long h = 0, g, ha;
ngx_http_core_srv_conf_t *cscf;
u_char *k;
ngx_uint_t len;
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
len = cookie->len + cscf->virtual_server_name.len;
k = ngx_pcalloc(r->pool, len);
if (!k) {
return 0;
}
memcpy(k, cookie->data, cookie->len);
memcpy(k + cookie->len, cscf->virtual_server_name.data,
cscf->virtual_server_name.len);
while (len) {
h = (h << 4) + *k++;
g = h & 0xf0000000l;
if (g) h ^= g >> 24;
h &= ~g;
len--;
}
ha = h % NGX_HTTP_SESSION_DEFAULT_NUMBER;
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"session hash: %u\n", ha);
return ha;
}
static ngx_int_t
ngx_http_zm_sso_handler(ngx_http_request_t *r)
{
ngx_http_zm_sso_loc_conf_t *zlcf;
ngx_http_ssl_srv_conf_t *hscf;
ngx_zm_lookup_work_t *w;
zlcf = ngx_http_get_module_loc_conf(r, ngx_http_zm_sso_module);
hscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
if (hscf->verify == 0) {
/* ssl_verify_client is off */
ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
"client has to enable client cert auth when accessing this url. "
"please set this server block's \"ssl_verify_client\" to \"on\" "
"or \"optional\"");
return NGX_HTTP_FORBIDDEN;
}
w = ngx_pcalloc (r->pool, sizeof(ngx_zm_lookup_work_t));
if (w == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
w->data = r;
w->pool = r->pool;
w->log = r->connection->log;
if (zlcf->type == NGX_ZM_SSO_CERTAUTH || zlcf->type == NGX_ZM_SSO_CERTAUTH_ADMIN) {
return ngx_http_zm_sso_cert_auth(r, w);
} else {
/* Should never execute here */
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
}
static ngx_int_t
ngx_http_v2_header_filter(ngx_http_request_t *r)
{
u_char status, *pos, *start, *p, *tmp;
size_t len, tmp_len;
ngx_str_t host, location;
ngx_uint_t i, port;
ngx_list_part_t *part;
ngx_table_elt_t *header;
ngx_connection_t *fc;
ngx_http_cleanup_t *cln;
ngx_http_v2_out_frame_t *frame;
ngx_http_core_loc_conf_t *clcf;
ngx_http_core_srv_conf_t *cscf;
u_char addr[NGX_SOCKADDR_STRLEN];
static const u_char nginx[5] = "\x84\xaa\x63\x55\xe7";
#if (NGX_HTTP_GZIP)
static const u_char accept_encoding[12] =
"\x8b\x84\x84\x2d\x69\x5b\x05\x44\x3c\x86\xaa\x6f";
#endif
static size_t nginx_ver_len = ngx_http_v2_literal_size(NGINX_VER);
static u_char nginx_ver[ngx_http_v2_literal_size(NGINX_VER)];
if (!r->stream) {
return ngx_http_next_header_filter(r);
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http2 header filter");
if (r->header_sent) {
return NGX_OK;
}
r->header_sent = 1;
if (r != r->main) {
return NGX_OK;
}
if (r->method == NGX_HTTP_HEAD) {
r->header_only = 1;
}
switch (r->headers_out.status) {
case NGX_HTTP_OK:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_200_INDEX);
break;
case NGX_HTTP_NO_CONTENT:
r->header_only = 1;
ngx_str_null(&r->headers_out.content_type);
r->headers_out.content_length = NULL;
r->headers_out.content_length_n = -1;
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_204_INDEX);
break;
case NGX_HTTP_PARTIAL_CONTENT:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_206_INDEX);
break;
case NGX_HTTP_NOT_MODIFIED:
r->header_only = 1;
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_304_INDEX);
break;
default:
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
switch (r->headers_out.status) {
case NGX_HTTP_BAD_REQUEST:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_400_INDEX);
break;
case NGX_HTTP_NOT_FOUND:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_404_INDEX);
break;
case NGX_HTTP_INTERNAL_SERVER_ERROR:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_500_INDEX);
break;
default:
status = 0;
}
}
len = status ? 1 : 1 + ngx_http_v2_literal_size("418");
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (r->headers_out.server == NULL) {
len += 1 + (clcf->server_tokens ? nginx_ver_len : sizeof(nginx));
}
if (r->headers_out.date == NULL) {
len += 1 + ngx_http_v2_literal_size("Wed, 31 Dec 1986 18:00:00 GMT");
}
if (r->headers_out.content_type.len) {
len += 1 + NGX_HTTP_V2_INT_OCTETS + r->headers_out.content_type.len;
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
len += sizeof("; charset=") - 1 + r->headers_out.charset.len;
}
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
len += 1 + ngx_http_v2_integer_octets(NGX_OFF_T_LEN) + NGX_OFF_T_LEN;
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
len += 1 + ngx_http_v2_literal_size("Wed, 31 Dec 1986 18:00:00 GMT");
}
fc = r->connection;
if (r->headers_out.location && r->headers_out.location->value.len) {
if (r->headers_out.location->value.data[0] == '/') {
if (clcf->server_name_in_redirect) {
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
host = cscf->server_name;
} else if (r->headers_in.server.len) {
host = r->headers_in.server;
} else {
host.len = NGX_SOCKADDR_STRLEN;
host.data = addr;
if (ngx_connection_local_sockaddr(fc, &host, 0) != NGX_OK) {
return NGX_ERROR;
}
}
port = ngx_inet_get_port(fc->local_sockaddr);
location.len = sizeof("https://") - 1 + host.len
+ r->headers_out.location->value.len;
if (clcf->port_in_redirect) {
#if (NGX_HTTP_SSL)
if (fc->ssl)
port = (port == 443) ? 0 : port;
else
#endif
port = (port == 80) ? 0 : port;
} else {
port = 0;
}
if (port) {
location.len += sizeof(":65535") - 1;
}
location.data = ngx_pnalloc(r->pool, location.len);
if (location.data == NULL) {
return NGX_ERROR;
}
p = ngx_cpymem(location.data, "http", sizeof("http") - 1);
#if (NGX_HTTP_SSL)
if (fc->ssl) {
*p++ = 's';
}
#endif
*p++ = ':'; *p++ = '/'; *p++ = '/';
p = ngx_cpymem(p, host.data, host.len);
if (port) {
p = ngx_sprintf(p, ":%ui", port);
}
p = ngx_cpymem(p, r->headers_out.location->value.data,
r->headers_out.location->value.len);
/* update r->headers_out.location->value for possible logging */
r->headers_out.location->value.len = p - location.data;
r->headers_out.location->value.data = location.data;
ngx_str_set(&r->headers_out.location->key, "Location");
}
r->headers_out.location->hash = 0;
len += 1 + NGX_HTTP_V2_INT_OCTETS + r->headers_out.location->value.len;
}
tmp_len = len;
#if (NGX_HTTP_GZIP)
if (r->gzip_vary) {
if (clcf->gzip_vary) {
len += 1 + sizeof(accept_encoding);
} else {
r->gzip_vary = 0;
}
}
#endif
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
if (header[i].key.len > NGX_HTTP_V2_MAX_FIELD) {
ngx_log_error(NGX_LOG_CRIT, fc->log, 0,
"too long response header name: \"%V\"",
&header[i].key);
return NGX_ERROR;
}
if (header[i].value.len > NGX_HTTP_V2_MAX_FIELD) {
ngx_log_error(NGX_LOG_CRIT, fc->log, 0,
"too long response header value: \"%V: %V\"",
&header[i].key, &header[i].value);
return NGX_ERROR;
}
len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len
+ NGX_HTTP_V2_INT_OCTETS + header[i].value.len;
if (header[i].key.len > tmp_len) {
tmp_len = header[i].key.len;
}
if (header[i].value.len > tmp_len) {
tmp_len = header[i].value.len;
}
}
tmp = ngx_palloc(r->pool, tmp_len);
pos = ngx_pnalloc(r->pool, len);
if (pos == NULL || tmp == NULL) {
return NGX_ERROR;
}
start = pos;
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \":status: %03ui\"",
r->headers_out.status);
if (status) {
*pos++ = status;
} else {
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_STATUS_INDEX);
*pos++ = NGX_HTTP_V2_ENCODE_RAW | 3;
pos = ngx_sprintf(pos, "%03ui", r->headers_out.status);
}
if (r->headers_out.server == NULL) {
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \"server: %s\"",
clcf->server_tokens ? NGINX_VER : "nginx");
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_SERVER_INDEX);
if (clcf->server_tokens) {
if (nginx_ver[0] == '\0') {
p = ngx_http_v2_write_value(nginx_ver, (u_char *) NGINX_VER,
sizeof(NGINX_VER) - 1, tmp);
nginx_ver_len = p - nginx_ver;
}
pos = ngx_cpymem(pos, nginx_ver, nginx_ver_len);
} else {
pos = ngx_cpymem(pos, nginx, sizeof(nginx));
}
}
if (r->headers_out.date == NULL) {
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \"date: %V\"",
&ngx_cached_http_time);
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_DATE_INDEX);
pos = ngx_http_v2_write_value(pos, ngx_cached_http_time.data,
ngx_cached_http_time.len, tmp);
}
if (r->headers_out.content_type.len) {
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_CONTENT_TYPE_INDEX);
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
len = r->headers_out.content_type.len + sizeof("; charset=") - 1
+ r->headers_out.charset.len;
p = ngx_pnalloc(r->pool, len);
if (p == NULL) {
return NGX_ERROR;
}
p = ngx_cpymem(p, r->headers_out.content_type.data,
r->headers_out.content_type.len);
p = ngx_cpymem(p, "; charset=", sizeof("; charset=") - 1);
p = ngx_cpymem(p, r->headers_out.charset.data,
r->headers_out.charset.len);
/* updated r->headers_out.content_type is also needed for logging */
r->headers_out.content_type.len = len;
r->headers_out.content_type.data = p - len;
}
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \"content-type: %V\"",
&r->headers_out.content_type);
pos = ngx_http_v2_write_value(pos, r->headers_out.content_type.data,
r->headers_out.content_type.len, tmp);
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \"content-length: %O\"",
r->headers_out.content_length_n);
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_CONTENT_LENGTH_INDEX);
p = pos;
pos = ngx_sprintf(pos + 1, "%O", r->headers_out.content_length_n);
*p = NGX_HTTP_V2_ENCODE_RAW | (u_char) (pos - p - 1);
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_LAST_MODIFIED_INDEX);
ngx_http_time(pos, r->headers_out.last_modified_time);
len = sizeof("Wed, 31 Dec 1986 18:00:00 GMT") - 1;
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \"last-modified: %*s\"",
len, pos);
/*
* Date will always be encoded using huffman in the temporary buffer,
* so it's safe here to use src and dst pointing to the same address.
*/
pos = ngx_http_v2_write_value(pos, pos, len, tmp);
}
if (r->headers_out.location && r->headers_out.location->value.len) {
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \"location: %V\"",
&r->headers_out.location->value);
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_LOCATION_INDEX);
pos = ngx_http_v2_write_value(pos, r->headers_out.location->value.data,
r->headers_out.location->value.len, tmp);
}
#if (NGX_HTTP_GZIP)
if (r->gzip_vary) {
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \"vary: Accept-Encoding\"");
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_VARY_INDEX);
pos = ngx_cpymem(pos, accept_encoding, sizeof(accept_encoding));
}
#endif
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
#if (NGX_DEBUG)
if (fc->log->log_level & NGX_LOG_DEBUG_HTTP) {
ngx_strlow(tmp, header[i].key.data, header[i].key.len);
ngx_log_debug3(NGX_LOG_DEBUG_HTTP, fc->log, 0,
"http2 output header: \"%*s: %V\"",
header[i].key.len, tmp, &header[i].value);
}
#endif
*pos++ = 0;
pos = ngx_http_v2_write_name(pos, header[i].key.data,
header[i].key.len, tmp);
pos = ngx_http_v2_write_value(pos, header[i].value.data,
header[i].value.len, tmp);
}
frame = ngx_http_v2_create_headers_frame(r, start, pos);
if (frame == NULL) {
return NGX_ERROR;
}
ngx_http_v2_queue_blocked_frame(r->stream->connection, frame);
cln = ngx_http_cleanup_add(r, 0);
if (cln == NULL) {
return NGX_ERROR;
}
cln->handler = ngx_http_v2_filter_cleanup;
cln->data = r->stream;
r->stream->queued = 1;
fc->send_chain = ngx_http_v2_send_chain;
fc->need_last_buf = 1;
return ngx_http_v2_filter_send(fc, r->stream);
}
static ngx_int_t
ngx_http_tfs_handler(ngx_http_request_t *r)
{
ngx_int_t rc;
ngx_http_tfs_t *t;
ngx_http_tfs_loc_conf_t *tlcf;
ngx_http_tfs_srv_conf_t *tscf;
ngx_http_tfs_main_conf_t *tmcf;
tlcf = ngx_http_get_module_loc_conf(r, ngx_http_tfs_module);
tscf = ngx_http_get_module_srv_conf(r, ngx_http_tfs_module);
tmcf = ngx_http_get_module_main_conf(r, ngx_http_tfs_module);
t = ngx_pcalloc(r->pool, sizeof(ngx_http_tfs_t));
if (t == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"alloc ngx_http_tfs_t failed");
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
t->pool = r->pool;
t->data = r;
t->log = r->connection->log;
t->loc_conf = tlcf;
t->srv_conf = tscf;
t->main_conf = tmcf;
t->output.tag = (ngx_buf_tag_t) &ngx_http_tfs_module;
if (tmcf->local_block_cache_ctx != NULL) {
t->block_cache_ctx.use_cache |= NGX_HTTP_TFS_LOCAL_BLOCK_CACHE;
t->block_cache_ctx.local_ctx = tmcf->local_block_cache_ctx;
}
if (tmcf->enable_remote_block_cache == NGX_HTTP_TFS_YES) {
t->block_cache_ctx.use_cache |= NGX_HTTP_TFS_REMOTE_BLOCK_CACHE;
}
t->block_cache_ctx.remote_ctx.data = t;
t->block_cache_ctx.remote_ctx.tair_instance = &tmcf->remote_block_cache_instance;
t->block_cache_ctx.curr_lookup_cache = NGX_HTTP_TFS_LOCAL_BLOCK_CACHE;
rc = ngx_http_restful_parse(r, &t->r_ctx);
if (rc != NGX_OK) {
return rc;
}
t->header_only = r->header_only;
if (!tmcf->enable_rcs && t->r_ctx.version == 2) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"custom file requires tfs_enable_rcs on,"
" and make sure you have MetaServer and RootServer!");
return NGX_HTTP_BAD_REQUEST;
}
switch (t->r_ctx.action.code) {
case NGX_HTTP_TFS_ACTION_CREATE_DIR:
case NGX_HTTP_TFS_ACTION_CREATE_FILE:
case NGX_HTTP_TFS_ACTION_REMOVE_DIR:
case NGX_HTTP_TFS_ACTION_REMOVE_FILE:
case NGX_HTTP_TFS_ACTION_MOVE_DIR:
case NGX_HTTP_TFS_ACTION_MOVE_FILE:
case NGX_HTTP_TFS_ACTION_LS_DIR:
case NGX_HTTP_TFS_ACTION_LS_FILE:
case NGX_HTTP_TFS_ACTION_STAT_FILE:
case NGX_HTTP_TFS_ACTION_KEEPALIVE:
case NGX_HTTP_TFS_ACTION_READ_FILE:
case NGX_HTTP_TFS_ACTION_GET_APPID:
rc = ngx_http_discard_request_body(r);
if (rc != NGX_OK) {
return rc;
}
r->headers_out.content_length_n = -1;
ngx_http_set_ctx(r, t, ngx_http_tfs_module);
r->main->count++;
ngx_http_tfs_read_body_handler(r);
break;
case NGX_HTTP_TFS_ACTION_WRITE_FILE:
r->headers_out.content_length_n = -1;
ngx_http_set_ctx(r, t, ngx_http_tfs_module);
rc = ngx_http_read_client_request_body(r, ngx_http_tfs_read_body_handler);
if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
return rc;
}
break;
}
return NGX_DONE;
}
static ngx_inline ngx_int_t
ngx_http_modsecurity_save_request_body(ngx_http_request_t *r)
{
ngx_http_modsecurity_ctx_t *ctx;
apr_off_t content_length;
ngx_buf_t *buf;
ngx_http_core_srv_conf_t *cscf;
size_t size;
ngx_http_connection_t *hc;
ctx = ngx_http_get_module_ctx(r, ngx_http_modsecurity);
apr_brigade_length(ctx->brigade, 0, &content_length);
if (r->header_in->end - r->header_in->last >= content_length) {
/* use r->header_in */
if (ngx_buf_size(r->header_in)) {
/* move to the end */
ngx_memmove(r->header_in->pos + content_length,
r->header_in->pos,
ngx_buf_size(r->header_in));
}
if (apr_brigade_flatten(ctx->brigade,
(char *)r->header_in->pos,
(apr_size_t *)&content_length) != APR_SUCCESS) {
return NGX_ERROR;
}
apr_brigade_cleanup(ctx->brigade);
r->header_in->last += content_length;
return NGX_OK;
}
if (ngx_buf_size(r->header_in)) {
/*
* ngx_http_set_keepalive will reuse r->header_in if
* (r->header_in != c->buffer && r->header_in.last != r->header_in.end),
* so we need this code block.
* see ngx_http_set_keepalive, ngx_http_alloc_large_header_buffer
*/
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
size = ngx_max(cscf->large_client_header_buffers.size,
(size_t)content_length + ngx_buf_size(r->header_in));
hc = r->http_connection;
if (hc->nfree && size == cscf->large_client_header_buffers.size) {
buf = hc->free[--hc->nfree];
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"ModSecurity: use http free large header buffer: %p %uz",
buf->pos, buf->end - buf->last);
} else if (hc->nbusy < cscf->large_client_header_buffers.num) {
if (hc->busy == NULL) {
hc->busy = ngx_palloc(r->connection->pool,
cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
}
if (hc->busy == NULL) {
return NGX_ERROR;
} else {
buf = ngx_create_temp_buf(r->connection->pool, size);
}
} else {
/* TODO: how to deal this case ? */
return NGX_ERROR;
}
} else {
buf = ngx_create_temp_buf(r->pool, (size_t) content_length);
}
if (buf == NULL) {
return NGX_ERROR;
}
if (apr_brigade_flatten(ctx->brigade, (char *)buf->pos,
(apr_size_t *)&content_length) != APR_SUCCESS) {
return NGX_ERROR;
}
apr_brigade_cleanup(ctx->brigade);
buf->last += content_length;
ngx_memcpy(buf->last, r->header_in->pos, ngx_buf_size(r->header_in));
buf->last += ngx_buf_size(r->header_in);
r->header_in = buf;
return NGX_OK;
}
static void
ngx_tcp2http_init_session(ngx_event_t *rev)
{
size_t size;
ssize_t n;
ngx_buf_t *b;
ngx_connection_t *c;
ngx_http_connection_t *hc;
ngx_http_core_srv_conf_t *cscf;
c = rev->data;
//ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http wait request handler");
ngx_log_error(NGX_LOG_ERR, c->log, 0,
"init session");
if (rev->timedout) {
ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
ngx_http_close_connection(c);
return;
}
if (c->close) {
ngx_http_close_connection(c);
return;
}
hc = c->data;
cscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_core_module);
size = cscf->client_header_buffer_size;
b = c->buffer;
if (b == NULL) {
b = ngx_create_temp_buf(c->pool, size);
if (b == NULL) {
ngx_http_close_connection(c);
return;
}
c->buffer = b;
} else if (b->start == NULL) {
b->start = ngx_palloc(c->pool, size);
if (b->start == NULL) {
ngx_http_close_connection(c);
return;
}
b->pos = b->start;
b->last = b->start;
b->end = b->last + size;
}
c->data = ngx_http_create_request(c);
if (c->data == NULL) {
ngx_http_close_connection(c);
return;
}
rev->handler = ngx_tcp2http_process_session;
ngx_tcp2http_process_session(rev);
}
/*=wait_request*/
static void
ngx_tcp2http_process_session(ngx_event_t *rev)
{
ssize_t n;
ngx_int_t rc, rv;
ngx_str_t host;
ngx_connection_t *c;
ngx_http_request_t *r;
ngx_http_core_srv_conf_t *cscf;
c = rev->data;
r = c->data;
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
ngx_log_error(NGX_LOG_DEBUG, c->log, 0,
"http request line: \"%V\"", &r->request_line);
rc = NGX_AGAIN;
char * request="GET /\r\n\r\n";
sprintf(r->header_in->last,request);
r->header_in->last += ngx_strlen(request);
rc = ngx_http_parse_request_line(r, r->header_in);
if (rc == NGX_OK) {
/* the request line has been parsed successfully */
r->request_line.len = r->request_end - r->request_start;
r->request_line.data = r->request_start;
r->request_length = r->header_in->pos - r->request_start;
ngx_http_probe_read_req_line_done(r);
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http request line: \"%V\"", &r->request_line);
r->method_name.len = r->method_end - r->request_start + 1;
r->method_name.data = r->request_line.data;
if (r->http_protocol.data) {
r->http_protocol.len = r->request_end - r->http_protocol.data;
}
if (ngx_http_process_request_uri(r) != NGX_OK) {
return;
}
if (r->host_start && r->host_end) {
host.len = r->host_end - r->host_start;
host.data = r->host_start;
rc = ngx_http_validate_host(&host, r->pool, 0);
if (rc == NGX_DECLINED) {
ngx_log_error(NGX_LOG_INFO, c->log, 0,
"client sent invalid host in request line");
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return;
}
if (rc == NGX_ERROR) {
ngx_tcp2http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
if (ngx_http_set_virtual_server(r, &host) == NGX_ERROR) {
return;
}
r->headers_in.server = host;
}
if (r->http_version < NGX_HTTP_VERSION_10) {
if (r->headers_in.server.len == 0
&& ngx_http_set_virtual_server(r, &r->headers_in.server)
== NGX_ERROR)
{
return;
}
ngx_http_process_request(r);
return;
}
if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
sizeof(ngx_table_elt_t))
!= NGX_OK)
{
ngx_tcp2http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
c->log->action = "reading client request headers";
/*rev->handler = ngx_http_process_request_headers;
ngx_http_process_request_headers(rev);*/
return;
}else{
ngx_tcp2http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
}
/*ngx_http_process_request(r);*/
/* process the ACL */
/*if (ngx_tcp_access_handler(s) == NGX_ERROR) {
ngx_tcp2http_finalize_session(s);
return;
}*/
/* if (cscf->protocol == NULL || cscf->protocol->init_session == NULL) {
dd("protocol not initialized");
ngx_tcp2http_finalize_session(s);
return;
}
c->read->handler= ngx_tcp2http_session_handler;
c->write->handler= ngx_tcp2http_session_handler;
r->read_event_handler = tcp2http_block_reading;
rev->handler(rev);*/
}
static ngx_int_t
ngx_http_spdy_serverpush_header_filter(ngx_http_request_t *r)
{
int rc;
size_t len;
u_char *p, *buf, *last;
ngx_buf_t *b;
ngx_str_t host;
ngx_uint_t i, j, count, port;
ngx_chain_t *cl;
ngx_list_part_t *part, *pt;
ngx_table_elt_t *header, *h;
ngx_connection_t *c;
ngx_http_cleanup_t *cln;
ngx_http_core_loc_conf_t *clcf;
ngx_http_core_srv_conf_t *cscf;
ngx_http_spdy_stream_t *stream;
ngx_http_spdy_out_frame_t *frame;
ngx_http_spdy_connection_t *sc;
struct sockaddr_in *sin;
#if (NGX_HAVE_INET6)
struct sockaddr_in6 *sin6;
#endif
u_char addr[NGX_SOCKADDR_STRLEN];
if (!r->spdy_stream) {
return ngx_http_next_header_filter(r);
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy serverpush module header filter");
if (r->header_sent) {
return NGX_OK;
}
r->header_sent = 1;
if (r != r->main) {
return NGX_OK;
}
c = r->connection;
if (r->method == NGX_HTTP_HEAD) {
r->header_only = 1;
}
switch (r->headers_out.status) {
case NGX_HTTP_OK:
case NGX_HTTP_PARTIAL_CONTENT:
break;
case NGX_HTTP_NOT_MODIFIED:
r->header_only = 1;
break;
case NGX_HTTP_NO_CONTENT:
r->header_only = 1;
ngx_str_null(&r->headers_out.content_type);
r->headers_out.content_length = NULL;
r->headers_out.content_length_n = -1;
/* fall through */
default:
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy serverpush module header filter 2");
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"From header Blaha spdy body filter \"%V?%V\"", &r->uri, &r->args);
len = NGX_SPDY_NV_NUM_SIZE
+ ngx_http_spdy_nv_nsize("version")
+ ngx_http_spdy_nv_vsize("HTTP/1.1")
+ ngx_http_spdy_nv_nsize("status")
+ ngx_http_spdy_nv_vsize("418");
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
len += ngx_http_spdy_nv_nsize("url")
+ngx_http_spdy_nv_vsize("https://localhost/test.js");
if (r->headers_out.server == NULL) {
len += ngx_http_spdy_nv_nsize("server");
len += clcf->server_tokens ? ngx_http_spdy_nv_vsize(NGINX_VER)
: ngx_http_spdy_nv_vsize("nginx");
}
if (r->headers_out.date == NULL) {
len += ngx_http_spdy_nv_nsize("date")
+ ngx_http_spdy_nv_vsize("Wed, 31 Dec 1986 10:00:00 GMT");
}
if (r->headers_out.content_type.len) {
len += ngx_http_spdy_nv_nsize("content-type")
+ NGX_SPDY_NV_VLEN_SIZE + r->headers_out.content_type.len;
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
len += sizeof("; charset=") - 1 + r->headers_out.charset.len;
}
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
len += ngx_http_spdy_nv_nsize("content-length")
+ NGX_SPDY_NV_VLEN_SIZE + NGX_OFF_T_LEN;
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
len += ngx_http_spdy_nv_nsize("last-modified")
+ ngx_http_spdy_nv_vsize("Wed, 31 Dec 1986 10:00:00 GMT");
}
if (r->headers_out.location
&& r->headers_out.location->value.len
&& r->headers_out.location->value.data[0] == '/')
{
r->headers_out.location->hash = 0;
if (clcf->server_name_in_redirect) {
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
host = cscf->server_name;
} else if (r->headers_in.server.len) {
host = r->headers_in.server;
} else {
host.len = NGX_SOCKADDR_STRLEN;
host.data = addr;
if (ngx_connection_local_sockaddr(c, &host, 0) != NGX_OK) {
return NGX_ERROR;
}
}
switch (c->local_sockaddr->sa_family) {
#if (NGX_HAVE_INET6)
case AF_INET6:
sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
port = ntohs(sin6->sin6_port);
break;
#endif
#if (NGX_HAVE_UNIX_DOMAIN)
case AF_UNIX:
port = 0;
break;
#endif
default: /* AF_INET */
sin = (struct sockaddr_in *) c->local_sockaddr;
port = ntohs(sin->sin_port);
break;
}
len += ngx_http_spdy_nv_nsize("location")
+ ngx_http_spdy_nv_vsize("https://")
+ host.len
+ r->headers_out.location->value.len;
if (clcf->port_in_redirect) {
#if (NGX_HTTP_SSL)
if (c->ssl)
port = (port == 443) ? 0 : port;
else
#endif
port = (port == 80) ? 0 : port;
} else {
port = 0;
}
if (port) {
len += sizeof(":65535") - 1;
}
} else {
ngx_str_null(&host);
port = 0;
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy serverpush module header filter 3");
part = &r->headers_out.headers.part;
header = part->elts;
int isSet=0;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
ngx_str_t xac = ngx_string("X-Associated-Content");
if(ngx_strncmp(&header[i].key, &xac, 20) == 0 )
{
isSet=1;
}
len += NGX_SPDY_NV_NLEN_SIZE + header[i].key.len
+ NGX_SPDY_NV_VLEN_SIZE + header[i].value.len;
}
buf = ngx_alloc(len, r->pool->log);
if (buf == NULL) {
return NGX_ERROR;
}
last = buf + NGX_SPDY_NV_NUM_SIZE;
last = ngx_http_spdy_nv_write_name(last, "version");
last = ngx_http_spdy_nv_write_val(last, "HTTP/1.1");
last = ngx_http_spdy_nv_write_name(last, "status");
last = ngx_spdy_frame_write_uint16(last, 3);
last = ngx_sprintf(last, "%03ui", r->headers_out.status);
count = 2;
last = ngx_http_spdy_nv_write_name(last, "url");
last = ngx_http_spdy_nv_write_val(last, "https://localhost/test.js");
count++;
if (r->headers_out.server == NULL) {
last = ngx_http_spdy_nv_write_name(last, "server");
last = clcf->server_tokens
? ngx_http_spdy_nv_write_val(last, NGINX_VER)
: ngx_http_spdy_nv_write_val(last, "nginx");
count++;
}
if (r->headers_out.date == NULL) {
last = ngx_http_spdy_nv_write_name(last, "date");
last = ngx_http_spdy_nv_write_vlen(last, ngx_cached_http_time.len);
last = ngx_cpymem(last, ngx_cached_http_time.data,
ngx_cached_http_time.len);
count++;
}
if (r->headers_out.content_type.len) {
last = ngx_http_spdy_nv_write_name(last, "content-type");
p = last + NGX_SPDY_NV_VLEN_SIZE;
last = ngx_cpymem(p, r->headers_out.content_type.data,
r->headers_out.content_type.len);
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
last = ngx_cpymem(last, "; charset=", sizeof("; charset=") - 1);
last = ngx_cpymem(last, r->headers_out.charset.data,
r->headers_out.charset.len);
/* update r->headers_out.content_type for possible logging */
r->headers_out.content_type.len = last - p;
r->headers_out.content_type.data = p;
}
(void) ngx_http_spdy_nv_write_vlen(p - NGX_SPDY_NV_VLEN_SIZE,
r->headers_out.content_type.len);
count++;
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
last = ngx_http_spdy_nv_write_name(last, "content-length");
p = last + NGX_SPDY_NV_VLEN_SIZE;
last = ngx_sprintf(p, "%O", r->headers_out.content_length_n);
(void) ngx_http_spdy_nv_write_vlen(p - NGX_SPDY_NV_VLEN_SIZE,
last - p);
count++;
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
last = ngx_http_spdy_nv_write_name(last, "last-modified");
p = last + NGX_SPDY_NV_VLEN_SIZE;
last = ngx_http_time(p, r->headers_out.last_modified_time);
(void) ngx_http_spdy_nv_write_vlen(p - NGX_SPDY_NV_VLEN_SIZE,
last - p);
count++;
}
if (host.data) {
last = ngx_http_spdy_nv_write_name(last, "location");
p = last + NGX_SPDY_NV_VLEN_SIZE;
last = ngx_cpymem(p, "http", sizeof("http") - 1);
#if (NGX_HTTP_SSL)
if (c->ssl) {
*last++ ='s';
}
#endif
*last++ = ':'; *last++ = '/'; *last++ = '/';
last = ngx_cpymem(last, host.data, host.len);
if (port) {
last = ngx_sprintf(last, ":%ui", port);
}
last = ngx_cpymem(last, r->headers_out.location->value.data,
r->headers_out.location->value.len);
/* update r->headers_out.location->value for possible logging */
r->headers_out.location->value.len = last - p;
r->headers_out.location->value.data = p;
ngx_str_set(&r->headers_out.location->key, "location");
(void) ngx_http_spdy_nv_write_vlen(p - NGX_SPDY_NV_VLEN_SIZE,
r->headers_out.location->value.len);
count++;
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy serverpush module header filter 4");
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0 || header[i].hash == 2) {
continue;
}
if ((header[i].key.len == 6
&& ngx_strncasecmp(header[i].key.data,
(u_char *) "status", 6) == 0)
|| (header[i].key.len == 7
&& ngx_strncasecmp(header[i].key.data,
(u_char *) "version", 7) == 0))
{
header[i].hash = 0;
continue;
}
last = ngx_http_spdy_nv_write_nlen(last, header[i].key.len);
ngx_strlow(last, header[i].key.data, header[i].key.len);
last += header[i].key.len;
p = last + NGX_SPDY_NV_VLEN_SIZE;
last = ngx_cpymem(p, header[i].value.data, header[i].value.len);
pt = part;
h = header;
for (j = i + 1; /* void */; j++) {
if (j >= pt->nelts) {
if (pt->next == NULL) {
break;
}
pt = pt->next;
h = pt->elts;
j = 0;
}
if (h[j].hash == 0 || h[j].hash == 2
|| h[j].key.len != header[i].key.len
|| ngx_strncasecmp(header[i].key.data, h[j].key.data,
header[i].key.len))
{
continue;
}
*last++ = '\0';
last = ngx_cpymem(last, h[j].value.data, h[j].value.len);
h[j].hash = 2;
}
(void) ngx_http_spdy_nv_write_vlen(p - NGX_SPDY_NV_VLEN_SIZE,
last - p);
count++;
}
(void) ngx_spdy_frame_write_uint16(buf, count);
stream = r->spdy_stream;
sc = stream->connection;
if(isSet)
{
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy serverpush module header filter 5");
//ngx_http_spdy_stream_t *myStream;
myStream = ngx_http_spdy_create_stream(sc, get_next_even_stream_id(), 0);
len = last - buf;
b = ngx_create_temp_buf(r->pool, NGX_SPDY_FRAME_HEADER_SIZE
+ NGX_SPDY_SYN_STREAM_SIZE
+ deflateBound(&sc->zstream_out, len));
if (b == NULL) {
ngx_free(buf);
return NGX_ERROR;
}
b->last += NGX_SPDY_FRAME_HEADER_SIZE + NGX_SPDY_SYN_STREAM_SIZE;
sc->zstream_out.next_in = buf;
sc->zstream_out.avail_in = len;
sc->zstream_out.next_out = b->last;
sc->zstream_out.avail_out = b->end - b->last;
rc = deflate(&sc->zstream_out, Z_SYNC_FLUSH);
ngx_free(buf);
if (rc != Z_OK) {
ngx_log_error(NGX_LOG_ALERT, c->log, 0,
"spdy deflate() failed: %d", rc);
return NGX_ERROR;
}
ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
"spdy deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d",
sc->zstream_out.next_in, sc->zstream_out.next_out,
sc->zstream_out.avail_in, sc->zstream_out.avail_out,
rc);
b->last = sc->zstream_out.next_out;
p = b->pos;
p = ngx_spdy_frame_write_head(p, NGX_SPDY_SYN_STREAM);
len = b->last - b->pos;
r->header_size = len;
if (r->header_only) {
b->last_buf = 1;
p = ngx_spdy_frame_write_flags_and_len(p, NGX_SPDY_FLAG_FIN,
len - NGX_SPDY_FRAME_HEADER_SIZE);
} else {
p = ngx_spdy_frame_write_flags_and_len(p, NGX_SPDY_FLAG_UNIDIRECTIONAL,
len - NGX_SPDY_FRAME_HEADER_SIZE);
}
p= ngx_spdy_frame_write_sid(p, myStream->id);
(void) ngx_spdy_frame_write_associated_sid(p, stream->id);
cl = ngx_alloc_chain_link(r->pool);
if (cl == NULL) {
return NGX_ERROR;
}
cl->buf = b;
cl->next = NULL;
frame = ngx_palloc(r->pool, sizeof(ngx_http_spdy_out_frame_t));
if (frame == NULL) {
return NGX_ERROR;
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy serverpush module header filter 6");
frame->first = cl;
frame->last = cl;
frame->handler = ngx_http_spdy_syn_frame_handler;
frame->free = NULL;
frame->stream = myStream;
frame->size = len;
frame->priority = myStream->priority;
frame->blocked = 1;
frame->fin = r->header_only;
ngx_log_debug3(NGX_LOG_DEBUG_HTTP, stream->request->connection->log, 0,
"spdy:%ui create JOLLY SYN_STREAM frame %p: size:%uz",
myStream->id, frame, frame->size);
ngx_http_spdy_queue_blocked_frame(sc, frame);
r->blocked++;
cln = ngx_http_cleanup_add(r, 0);
if (cln == NULL) {
return NGX_ERROR;
}
cln->handler = ngx_http_spdy_filter_cleanup;
cln->data = myStream;
myStream->waiting = 1;
ngx_http_spdy_serverpush_filter_send(c, myStream);
return ngx_http_next_header_filter(r);
}
else
{
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy serverpush module header filter 7");
return NGX_OK;
}
}
static ngx_int_t
create_request(ngx_http_request_t *r)
{
u_char ch;
const char * helper_agent_request_socket_password_data;
unsigned int helper_agent_request_socket_password_len;
u_char buf[sizeof("4294967296") + 1];
size_t len, size, key_len, val_len;
const u_char *app_type_string;
size_t app_type_string_len;
int server_name_len;
ngx_str_t escaped_uri;
ngx_str_t *union_station_filters = NULL;
void *tmp;
ngx_uint_t i, n;
ngx_buf_t *b;
ngx_chain_t *cl, *body;
ngx_list_part_t *part;
ngx_table_elt_t *header;
ngx_http_script_code_pt code;
ngx_http_script_engine_t e, le;
ngx_http_core_srv_conf_t *cscf;
passenger_loc_conf_t *slcf;
passenger_context_t *context;
ngx_http_script_len_code_pt lcode;
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
slcf = ngx_http_get_module_loc_conf(r, ngx_http_passenger_module);
context = ngx_http_get_module_ctx(r, ngx_http_passenger_module);
if (context == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
app_type_string = (const u_char *) pp_get_app_type_name(context->app_type);
app_type_string_len = strlen((const char *) app_type_string) + 1; /* include null terminator */
/*
* Nginx unescapes URI's before passing them to Phusion Passenger,
* but backend processes expect the escaped version.
* http://code.google.com/p/phusion-passenger/issues/detail?id=404
*/
escaped_uri.len =
2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, NGX_ESCAPE_URI)
+ r->uri.len;
escaped_uri.data = ngx_pnalloc(r->pool, escaped_uri.len + 1);
escaped_uri.data[escaped_uri.len] = '\0';
ngx_escape_uri(escaped_uri.data, r->uri.data, r->uri.len, NGX_ESCAPE_URI);
/**************************************************
* Determine the request header length.
**************************************************/
len = 0;
/* Length of the Content-Length header. A value of -1 means that the content
* length is unspecified, which is the case for e.g. WebSocket requests. */
if (r->headers_in.content_length_n >= 0) {
len += sizeof("CONTENT_LENGTH") +
uint_to_str(r->headers_in.content_length_n, buf, sizeof(buf)) +
1; /* +1 for trailing null */
}
/* DOCUMENT_ROOT, SCRIPT_NAME, RAILS_RELATIVE_URL_ROOT, PATH_INFO and REQUEST_URI. */
len += sizeof("DOCUMENT_ROOT") + context->public_dir.len + 1;
if (context->base_uri.len > 0) {
len += sizeof("SCRIPT_NAME") + context->base_uri.len + 1;
len += sizeof("RAILS_RELATIVE_URL_ROOT") +
context->base_uri.len + 1;
len += sizeof("PATH_INFO") + escaped_uri.len - context->base_uri.len + 1;
} else {
len += sizeof("SCRIPT_NAME") + sizeof("");
len += sizeof("PATH_INFO") + escaped_uri.len + 1;
}
len += sizeof("REQUEST_URI") + escaped_uri.len + 1;
if (r->args.len > 0) {
len += 1 + r->args.len;
}
/* SERVER_NAME; must be equal to HTTP_HOST without the port part */
if (r->headers_in.host != NULL) {
tmp = memchr(r->headers_in.host->value.data, ':', r->headers_in.host->value.len);
if (tmp == NULL) {
server_name_len = r->headers_in.host->value.len;
} else {
server_name_len = (int) ((const u_char *) tmp - r->headers_in.host->value.data);
}
} else {
server_name_len = cscf->server_name.len;
}
len += sizeof("SERVER_NAME") + server_name_len + 1;
/* Various other HTTP headers. */
if (r->headers_in.content_type != NULL
&& r->headers_in.content_type->value.len > 0) {
len += sizeof("CONTENT_TYPE") + r->headers_in.content_type->value.len + 1;
}
#if (NGX_HTTP_SSL)
if (r->http_connection->ssl) {
len += sizeof("HTTPS") + sizeof("on");
}
#endif
/* Lengths of Passenger application pool options. */
len += slcf->options_cache.len;
len += sizeof("PASSENGER_APP_TYPE") + app_type_string_len;
if (slcf->union_station_filters != NGX_CONF_UNSET_PTR && slcf->union_station_filters->nelts > 0) {
len += sizeof("UNION_STATION_FILTERS");
union_station_filters = (ngx_str_t *) slcf->union_station_filters->elts;
for (i = 0; i < slcf->union_station_filters->nelts; i++) {
if (i != 0) {
len++;
}
len += union_station_filters[i].len;
}
len++;
}
/***********************/
/***********************/
/* Lengths of various CGI variables. */
if (slcf->vars_len) {
ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
ngx_http_script_flush_no_cacheable_variables(r, slcf->flushes);
le.flushed = 1;
le.ip = slcf->vars_len->elts;
le.request = r;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
key_len = lcode(&le);
for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
le.ip += sizeof(uintptr_t);
len += key_len + val_len;
}
}
/* Lengths of HTTP headers. */
if (slcf->upstream_config.pass_request_headers) {
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (!header_is_transfer_encoding(&header[i].key)) {
len += sizeof("HTTP_") - 1 + header[i].key.len + 1
+ header[i].value.len + 1;
}
}
}
/**************************************************
* Build the request header data.
**************************************************/
helper_agent_request_socket_password_data =
pp_agents_starter_get_request_socket_password(pp_agents_starter,
&helper_agent_request_socket_password_len);
size = helper_agent_request_socket_password_len +
/* netstring length + ":" + trailing "," */
/* note: 10 == sizeof("4294967296") - 1 */
len + 10 + 1 + 1;
b = ngx_create_temp_buf(r->pool, size);
if (b == NULL) {
return NGX_ERROR;
}
cl = ngx_alloc_chain_link(r->pool);
if (cl == NULL) {
return NGX_ERROR;
}
cl->buf = b;
/* Build SCGI header netstring length part. */
b->last = ngx_copy(b->last, helper_agent_request_socket_password_data,
helper_agent_request_socket_password_len);
b->last = ngx_snprintf(b->last, 10, "%ui", len);
*b->last++ = (u_char) ':';
if (r->headers_in.content_length_n >= 0) {
b->last = ngx_copy(b->last, "CONTENT_LENGTH",
sizeof("CONTENT_LENGTH"));
b->last = ngx_snprintf(b->last, 10, "%ui", r->headers_in.content_length_n);
*b->last++ = (u_char) 0;
}
/* Build DOCUMENT_ROOT, SCRIPT_NAME, RAILS_RELATIVE_URL_ROOT, PATH_INFO and REQUEST_URI. */
b->last = ngx_copy(b->last, "DOCUMENT_ROOT", sizeof("DOCUMENT_ROOT"));
b->last = ngx_copy(b->last, context->public_dir.data,
context->public_dir.len + 1);
if (context->base_uri.len > 0) {
b->last = ngx_copy(b->last, "SCRIPT_NAME", sizeof("SCRIPT_NAME"));
b->last = ngx_copy(b->last, context->base_uri.data,
context->base_uri.len + 1);
b->last = ngx_copy(b->last, "RAILS_RELATIVE_URL_ROOT",
sizeof("RAILS_RELATIVE_URL_ROOT"));
b->last = ngx_copy(b->last, context->base_uri.data,
context->base_uri.len + 1);
b->last = ngx_copy(b->last, "PATH_INFO", sizeof("PATH_INFO"));
b->last = ngx_copy(b->last, escaped_uri.data + context->base_uri.len,
escaped_uri.len - context->base_uri.len);
b->last = ngx_copy(b->last, "", 1);
} else {
b->last = ngx_copy(b->last, "SCRIPT_NAME", sizeof("SCRIPT_NAME"));
b->last = ngx_copy(b->last, "", sizeof(""));
b->last = ngx_copy(b->last, "PATH_INFO", sizeof("PATH_INFO"));
b->last = ngx_copy(b->last, escaped_uri.data, escaped_uri.len);
b->last = ngx_copy(b->last, "", 1);
}
b->last = ngx_copy(b->last, "REQUEST_URI", sizeof("REQUEST_URI"));
b->last = ngx_copy(b->last, escaped_uri.data, escaped_uri.len);
if (r->args.len > 0) {
b->last = ngx_copy(b->last, "?", 1);
b->last = ngx_copy(b->last, r->args.data, r->args.len);
}
b->last = ngx_copy(b->last, "", 1);
/* SERVER_NAME */
b->last = ngx_copy(b->last, "SERVER_NAME", sizeof("SERVER_NAME"));
if (r->headers_in.host != NULL) {
b->last = ngx_copy(b->last, r->headers_in.host->value.data,
server_name_len);
} else {
b->last = ngx_copy(b->last, cscf->server_name.data,
server_name_len);
}
b->last = ngx_copy(b->last, "", 1);
/* Various other HTTP headers. */
if (r->headers_in.content_type != NULL
&& r->headers_in.content_type->value.len > 0) {
b->last = ngx_copy(b->last, "CONTENT_TYPE", sizeof("CONTENT_TYPE"));
b->last = ngx_copy(b->last, r->headers_in.content_type->value.data,
r->headers_in.content_type->value.len);
b->last = ngx_copy(b->last, "", 1);
}
#if (NGX_HTTP_SSL)
if (r->http_connection->ssl) {
b->last = ngx_copy(b->last, "HTTPS", sizeof("HTTPS"));
b->last = ngx_copy(b->last, "on", sizeof("on"));
}
#endif
/* Build Passenger application pool option headers. */
b->last = ngx_copy(b->last, slcf->options_cache.data, slcf->options_cache.len);
b->last = ngx_copy(b->last, "PASSENGER_APP_TYPE",
sizeof("PASSENGER_APP_TYPE"));
b->last = ngx_copy(b->last, app_type_string, app_type_string_len);
if (slcf->union_station_filters != NGX_CONF_UNSET_PTR && slcf->union_station_filters->nelts > 0) {
b->last = ngx_copy(b->last, "UNION_STATION_FILTERS",
sizeof("UNION_STATION_FILTERS"));
for (i = 0; i < slcf->union_station_filters->nelts; i++) {
if (i != 0) {
b->last = ngx_copy(b->last, "\1", 1);
}
b->last = ngx_copy(b->last, union_station_filters[i].data,
union_station_filters[i].len);
}
b->last = ngx_copy(b->last, "\0", 1);
}
/***********************/
/***********************/
if (slcf->vars_len) {
ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
e.ip = slcf->vars->elts;
e.pos = b->last;
e.request = r;
e.flushed = 1;
le.ip = slcf->vars_len->elts;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
(void) lcode(&le);
for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
le.ip += sizeof(uintptr_t);
while (*(uintptr_t *) e.ip) {
code = *(ngx_http_script_code_pt *) e.ip;
code((ngx_http_script_engine_t *) &e);
}
e.ip += sizeof(uintptr_t);
}
b->last = e.pos;
}
if (slcf->upstream_config.pass_request_headers) {
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header_is_transfer_encoding(&header[i].key)) {
continue;
}
b->last = ngx_cpymem(b->last, "HTTP_", sizeof("HTTP_") - 1);
for (n = 0; n < header[i].key.len; n++) {
ch = header[i].key.data[n];
if (ch >= 'a' && ch <= 'z') {
ch &= ~0x20;
} else if (ch == '-') {
ch = '_';
}
*b->last++ = ch;
}
*b->last++ = (u_char) 0;
b->last = ngx_copy(b->last, header[i].value.data,
header[i].value.len);
*b->last++ = (u_char) 0;
}
}
*b->last++ = (u_char) ',';
if (slcf->upstream_config.pass_request_body) {
body = r->upstream->request_bufs;
r->upstream->request_bufs = cl;
while (body) {
b = ngx_alloc_buf(r->pool);
if (b == NULL) {
return NGX_ERROR;
}
ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
cl->next = ngx_alloc_chain_link(r->pool);
if (cl->next == NULL) {
return NGX_ERROR;
}
cl = cl->next;
cl->buf = b;
body = body->next;
}
b->flush = 1;
} else {
r->upstream->request_bufs = cl;
}
cl->next = NULL;
return NGX_OK;
}
static ngx_int_t ngx_http_rewrite_handler(ngx_http_request_t *r)
{
int *matches;
u_char *p;
size_t len;
uintptr_t data;
ngx_int_t rc;
ngx_uint_t i, m, n;
ngx_str_t uri;
ngx_http_rewrite_op_t *op;
ngx_http_rewrite_rule_t *rule;
ngx_http_rewrite_srv_conf_t *scf;
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http rewrite handler");
scf = ngx_http_get_module_srv_conf(r, ngx_http_rewrite_module);
rule = scf->rules.elts;
for (i = 0; i < scf->rules.nelts; i++) {
if (rule[i].msize) {
if (!(matches = ngx_palloc(r->pool, rule[i].msize * sizeof(int)))) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
} else {
matches = NULL;
}
rc = ngx_regex_exec(rule[i].regex, &r->uri, matches, rule[i].msize);
if (rc == NGX_DECLINED) {
if (scf->log) {
ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
"\"%s\" does not match \"%s\"",
rule[i].re_name.data, r->uri.data);
}
continue;
}
if (rc < 0) {
ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
ngx_regex_exec_n
" failed: %d on \"%s\" using \"%s\"",
rc, r->uri.data, rule[i].re_name.data);
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
if (scf->log) {
ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
"\"%s\" matches \"%s\"",
rule[i].re_name.data, r->uri.data);
}
if (rule[i].status) {
return rule[i].status;
}
uri.len = rule[i].size;
for (n = 1; n < (ngx_uint_t) rc; n++) {
uri.len += matches[2 * n + 1] - matches[2 * n];
}
if (!(uri.data = ngx_palloc(r->pool, uri.len + 1))) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
p = uri.data;
op = rule[i].ops.elts;
for (n = 0; n < rule[i].ops.nelts; n++) {
if (op[n].op == NGX_HTTP_REWRITE_COPY_SHORT) {
len = op[n].len;
data = op[n].data;
while (len--) {
*p++ = (char) (data & 0xff);
data >>= 8;
}
} else if (op[n].op == NGX_HTTP_REWRITE_COPY_LONG) {
p = ngx_cpymem(p, (void *) op[n].data, op[n].len);
} else { /* NGX_HTTP_REWRITE_COPY_MATCH */
m = 2 * op[n].data;
p = ngx_cpymem(p, &r->uri.data[matches[m]],
matches[m + 1] - matches[m]);
}
}
/* callback for new session caching, to be set with SSL_CTX_sess_set_new_cb */
int
ngx_http_lua_ssl_sess_store_handler(ngx_ssl_conn_t *ssl_conn,
ngx_ssl_session_t *sess)
{
lua_State *L;
ngx_int_t rc;
#if OPENSSL_VERSION_NUMBER >= 0x1010005fL
unsigned int len;
#endif
ngx_connection_t *c, *fc = NULL;
ngx_http_request_t *r = NULL;
ngx_http_connection_t *hc;
ngx_http_lua_ssl_ctx_t *cctx;
ngx_http_lua_srv_conf_t *lscf;
ngx_http_core_loc_conf_t *clcf;
c = ngx_ssl_get_connection(ssl_conn);
dd("c = %p", c);
cctx = ngx_http_lua_ssl_get_ctx(c->ssl->connection);
dd("ssl sess_store handler, sess_store-ctx=%p", cctx);
hc = c->data;
fc = ngx_http_lua_create_fake_connection(NULL);
if (fc == NULL) {
goto failed;
}
fc->log->handler = ngx_http_lua_log_ssl_sess_store_error;
fc->log->data = fc;
fc->addr_text = c->addr_text;
fc->listening = c->listening;
r = ngx_http_lua_create_fake_request(fc);
if (r == NULL) {
goto failed;
}
r->main_conf = hc->conf_ctx->main_conf;
r->srv_conf = hc->conf_ctx->srv_conf;
r->loc_conf = hc->conf_ctx->loc_conf;
fc->log->file = c->log->file;
fc->log->log_level = c->log->log_level;
fc->ssl = c->ssl;
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
#if defined(nginx_version) && nginx_version >= 1003014
# if nginx_version >= 1009000
ngx_set_connection_log(fc, clcf->error_log);
# else
ngx_http_set_connection_log(fc, clcf->error_log);
# endif
#else
fc->log->file = clcf->error_log->file;
if (!(fc->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
fc->log->log_level = clcf->error_log->log_level;
}
#endif
if (cctx == NULL) {
cctx = ngx_pcalloc(c->pool, sizeof(ngx_http_lua_ssl_ctx_t));
if (cctx == NULL) {
goto failed; /* error */
}
}
cctx->connection = c;
cctx->request = r;
cctx->session = sess;
#if OPENSSL_VERSION_NUMBER < 0x1010005fL
cctx->session_id.data = sess->session_id;
cctx->session_id.len = sess->session_id_length;
#else
cctx->session_id.data = (u_char *)SSL_SESSION_get_id(sess, &len);
cctx->session_id.len = len;
#endif
cctx->done = 0;
dd("setting cctx");
if (SSL_set_ex_data(c->ssl->connection, ngx_http_lua_ssl_ctx_index, cctx)
== 0)
{
ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
goto failed;
}
lscf = ngx_http_get_module_srv_conf(r, ngx_http_lua_module);
/* TODO honor lua_code_cache off */
L = ngx_http_lua_get_lua_vm(r, NULL);
c->log->action = "storing SSL session by lua";
rc = lscf->srv.ssl_sess_store_handler(r, lscf, L);
if (rc >= NGX_OK || rc == NGX_ERROR) {
cctx->done = 1;
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
"ssl_session_store_by_lua*: handler return value: %i, "
"sess new cb exit code: %d", rc, cctx->exit_code);
c->log->action = "SSL handshaking";
/* Return value is a flag indicating whether the passed-in session
* has been freed by this callback; always return 0 so OpenSSL will
* free the session. Nginx's own session caching logic has the same
* practice. */
return 0;
}
/* impossible to reach here */
ngx_http_lua_assert(0);
failed:
if (r && r->pool) {
ngx_http_lua_free_fake_request(r);
}
if (fc) {
ngx_http_lua_close_fake_connection(fc);
}
return 0;
}
static ngx_int_t
ngx_http_v2_header_filter(ngx_http_request_t *r)
{
u_char status, *pos, *start, *p;
size_t len;
ngx_str_t host, location;
ngx_uint_t i, port;
ngx_list_part_t *part;
ngx_table_elt_t *header;
ngx_connection_t *fc;
ngx_http_cleanup_t *cln;
ngx_http_v2_out_frame_t *frame;
ngx_http_core_loc_conf_t *clcf;
ngx_http_core_srv_conf_t *cscf;
struct sockaddr_in *sin;
#if (NGX_HAVE_INET6)
struct sockaddr_in6 *sin6;
#endif
u_char addr[NGX_SOCKADDR_STRLEN];
if (!r->stream) {
return ngx_http_next_header_filter(r);
}
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http2 header filter");
if (r->header_sent) {
return NGX_OK;
}
r->header_sent = 1;
if (r != r->main) {
return NGX_OK;
}
if (r->method == NGX_HTTP_HEAD) {
r->header_only = 1;
}
switch (r->headers_out.status) {
case NGX_HTTP_OK:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_200_INDEX);
break;
case NGX_HTTP_NO_CONTENT:
r->header_only = 1;
ngx_str_null(&r->headers_out.content_type);
r->headers_out.content_length = NULL;
r->headers_out.content_length_n = -1;
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_204_INDEX);
break;
case NGX_HTTP_PARTIAL_CONTENT:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_206_INDEX);
break;
case NGX_HTTP_NOT_MODIFIED:
r->header_only = 1;
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_304_INDEX);
break;
default:
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
switch (r->headers_out.status) {
case NGX_HTTP_BAD_REQUEST:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_400_INDEX);
break;
case NGX_HTTP_NOT_FOUND:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_404_INDEX);
break;
case NGX_HTTP_INTERNAL_SERVER_ERROR:
status = ngx_http_v2_indexed(NGX_HTTP_V2_STATUS_500_INDEX);
break;
default:
status = 0;
}
}
len = status ? 1 : 1 + ngx_http_v2_literal_size("418");
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (r->headers_out.server == NULL) {
len += 1 + clcf->server_tokens ? ngx_http_v2_literal_size(TENGINE_VER)
: ngx_http_v2_literal_size("tengine");
}
if (r->headers_out.date == NULL) {
len += 1 + ngx_http_v2_literal_size("Wed, 31 Dec 1986 18:00:00 GMT");
}
if (r->headers_out.content_type.len) {
len += 1 + NGX_HTTP_V2_INT_OCTETS + r->headers_out.content_type.len;
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
len += sizeof("; charset=") - 1 + r->headers_out.charset.len;
}
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
len += 1 + ngx_http_v2_integer_octets(NGX_OFF_T_LEN) + NGX_OFF_T_LEN;
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
len += 1 + ngx_http_v2_literal_size("Wed, 31 Dec 1986 18:00:00 GMT");
}
fc = r->connection;
if (r->headers_out.location && r->headers_out.location->value.len) {
if (r->headers_out.location->value.data[0] == '/') {
if (clcf->server_name_in_redirect) {
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
host = cscf->server_name;
} else if (r->headers_in.server.len) {
host = r->headers_in.server;
} else {
host.len = NGX_SOCKADDR_STRLEN;
host.data = addr;
if (ngx_connection_local_sockaddr(fc, &host, 0) != NGX_OK) {
return NGX_ERROR;
}
}
switch (fc->local_sockaddr->sa_family) {
#if (NGX_HAVE_INET6)
case AF_INET6:
sin6 = (struct sockaddr_in6 *) fc->local_sockaddr;
port = ntohs(sin6->sin6_port);
break;
#endif
#if (NGX_HAVE_UNIX_DOMAIN)
case AF_UNIX:
port = 0;
break;
#endif
default: /* AF_INET */
sin = (struct sockaddr_in *) fc->local_sockaddr;
port = ntohs(sin->sin_port);
break;
}
location.len = sizeof("https://") - 1 + host.len
+ r->headers_out.location->value.len;
if (clcf->port_in_redirect) {
#if (NGX_HTTP_SSL)
if (fc->ssl)
port = (port == 443) ? 0 : port;
else
#endif
port = (port == 80) ? 0 : port;
} else {
port = 0;
}
if (port) {
location.len += sizeof(":65535") - 1;
}
location.data = ngx_pnalloc(r->pool, location.len);
if (location.data == NULL) {
return NGX_ERROR;
}
p = ngx_cpymem(location.data, "http", sizeof("http") - 1);
#if (NGX_HTTP_SSL)
if (fc->ssl) {
*p++ = 's';
}
#endif
*p++ = ':'; *p++ = '/'; *p++ = '/';
p = ngx_cpymem(p, host.data, host.len);
if (port) {
p = ngx_sprintf(p, ":%ui", port);
}
p = ngx_cpymem(p, r->headers_out.location->value.data,
r->headers_out.location->value.len);
/* update r->headers_out.location->value for possible logging */
r->headers_out.location->value.len = p - location.data;
r->headers_out.location->value.data = location.data;
ngx_str_set(&r->headers_out.location->key, "Location");
}
r->headers_out.location->hash = 0;
len += 1 + NGX_HTTP_V2_INT_OCTETS + r->headers_out.location->value.len;
}
#if (NGX_HTTP_GZIP)
if (r->gzip_vary) {
if (clcf->gzip_vary) {
len += 1 + ngx_http_v2_literal_size("Accept-Encoding");
} else {
r->gzip_vary = 0;
}
}
#endif
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
if (header[i].key.len > NGX_HTTP_V2_MAX_FIELD) {
ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
"too long response header name: \"%V\"",
&header[i].key);
return NGX_ERROR;
}
if (header[i].value.len > NGX_HTTP_V2_MAX_FIELD) {
ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
"too long response header value: \"%V: %V\"",
&header[i].key, &header[i].value);
return NGX_ERROR;
}
len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len
+ NGX_HTTP_V2_INT_OCTETS + header[i].value.len;
}
pos = ngx_palloc(r->pool, len);
if (pos == NULL) {
return NGX_ERROR;
}
start = pos;
if (status) {
*pos++ = status;
} else {
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_STATUS_INDEX);
*pos++ = NGX_HTTP_V2_ENCODE_RAW | 3;
pos = ngx_sprintf(pos, "%03ui", r->headers_out.status);
}
if (r->headers_out.server == NULL) {
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_SERVER_INDEX);
if (clcf->server_tokens) {
*pos++ = NGX_HTTP_V2_ENCODE_RAW | (sizeof(TENGINE_VER) - 1);
pos = ngx_cpymem(pos, TENGINE_VER, sizeof(TENGINE_VER) - 1);
} else {
*pos++ = NGX_HTTP_V2_ENCODE_RAW | (sizeof("nginx") - 1);
pos = ngx_cpymem(pos, "nginx", sizeof("nginx") - 1);
}
}
if (r->headers_out.date == NULL) {
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_DATE_INDEX);
*pos++ = (u_char) ngx_cached_http_time.len;
pos = ngx_cpymem(pos, ngx_cached_http_time.data,
ngx_cached_http_time.len);
}
if (r->headers_out.content_type.len) {
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_CONTENT_TYPE_INDEX);
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
*pos = NGX_HTTP_V2_ENCODE_RAW;
pos = ngx_http_v2_write_int(pos, ngx_http_v2_prefix(7),
r->headers_out.content_type.len
+ sizeof("; charset=") - 1
+ r->headers_out.charset.len);
p = pos;
pos = ngx_cpymem(pos, r->headers_out.content_type.data,
r->headers_out.content_type.len);
pos = ngx_cpymem(pos, "; charset=", sizeof("; charset=") - 1);
pos = ngx_cpymem(pos, r->headers_out.charset.data,
r->headers_out.charset.len);
/* update r->headers_out.content_type for possible logging */
r->headers_out.content_type.len = pos - p;
r->headers_out.content_type.data = p;
} else {
*pos = NGX_HTTP_V2_ENCODE_RAW;
pos = ngx_http_v2_write_int(pos, ngx_http_v2_prefix(7),
r->headers_out.content_type.len);
pos = ngx_cpymem(pos, r->headers_out.content_type.data,
r->headers_out.content_type.len);
}
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_CONTENT_LENGTH_INDEX);
p = pos;
pos = ngx_sprintf(pos + 1, "%O", r->headers_out.content_length_n);
*p = NGX_HTTP_V2_ENCODE_RAW | (u_char) (pos - p - 1);
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_LAST_MODIFIED_INDEX);
*pos++ = NGX_HTTP_V2_ENCODE_RAW
| (sizeof("Wed, 31 Dec 1986 18:00:00 GMT") - 1);
pos = ngx_http_time(pos, r->headers_out.last_modified_time);
}
if (r->headers_out.location && r->headers_out.location->value.len) {
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_LOCATION_INDEX);
*pos = NGX_HTTP_V2_ENCODE_RAW;
pos = ngx_http_v2_write_int(pos, ngx_http_v2_prefix(7),
r->headers_out.location->value.len);
pos = ngx_cpymem(pos, r->headers_out.location->value.data,
r->headers_out.location->value.len);
}
#if (NGX_HTTP_GZIP)
if (r->gzip_vary) {
*pos++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_VARY_INDEX);
*pos++ = NGX_HTTP_V2_ENCODE_RAW | (sizeof("Accept-Encoding") - 1);
pos = ngx_cpymem(pos, "Accept-Encoding", sizeof("Accept-Encoding") - 1);
}
#endif
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
*pos++ = 0;
*pos = NGX_HTTP_V2_ENCODE_RAW;
pos = ngx_http_v2_write_int(pos, ngx_http_v2_prefix(7),
header[i].key.len);
ngx_strlow(pos, header[i].key.data, header[i].key.len);
pos += header[i].key.len;
*pos = NGX_HTTP_V2_ENCODE_RAW;
pos = ngx_http_v2_write_int(pos, ngx_http_v2_prefix(7),
header[i].value.len);
pos = ngx_cpymem(pos, header[i].value.data, header[i].value.len);
}
frame = ngx_http_v2_create_headers_frame(r, start, pos);
if (frame == NULL) {
return NGX_ERROR;
}
ngx_http_v2_queue_blocked_frame(r->stream->connection, frame);
cln = ngx_http_cleanup_add(r, 0);
if (cln == NULL) {
return NGX_ERROR;
}
cln->handler = ngx_http_v2_filter_cleanup;
cln->data = r->stream;
r->stream->queued = 1;
fc->send_chain = ngx_http_v2_send_chain;
fc->need_last_buf = 1;
return ngx_http_v2_filter_send(fc, r->stream);
}
static ngx_int_t
ngx_http_header_filter(ngx_http_request_t *r)
{
u_char *p;
size_t len;
ngx_str_t host;
ngx_buf_t *b;
ngx_uint_t status, i;
ngx_chain_t out;
ngx_list_part_t *part;
ngx_table_elt_t *header;
ngx_http_core_loc_conf_t *clcf;
ngx_http_core_srv_conf_t *cscf;
/* AF_INET only */
u_char addr[INET_ADDRSTRLEN];
r->header_sent = 1;
if (r != r->main) {
return NGX_OK;
}
if (r->http_version < NGX_HTTP_VERSION_10) {
return NGX_OK;
}
if (r->method == NGX_HTTP_HEAD) {
r->header_only = 1;
}
if (r->headers_out.last_modified_time != -1) {
if (r->headers_out.status != NGX_HTTP_OK
&& r->headers_out.status != NGX_HTTP_PARTIAL_CONTENT
&& r->headers_out.status != NGX_HTTP_NOT_MODIFIED)
{
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
}
}
len = sizeof("HTTP/1.x ") - 1 + sizeof(CRLF) - 1
/* the end of the header */
+ sizeof(CRLF) - 1;
/* status line */
if (r->headers_out.status_line.len) {
len += r->headers_out.status_line.len;
#if (NGX_SUPPRESS_WARN)
status = NGX_INVALID_ARRAY_INDEX;
#endif
} else {
if (r->headers_out.status < NGX_HTTP_MOVED_PERMANENTLY) {
/* 2XX */
status = r->headers_out.status - NGX_HTTP_OK;
if (r->headers_out.status == NGX_HTTP_NO_CONTENT) {
r->header_only = 1;
r->headers_out.content_type.len = 0;
r->headers_out.content_type.data = NULL;
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
r->headers_out.content_length = NULL;
r->headers_out.content_length_n = -1;
}
} else if (r->headers_out.status < NGX_HTTP_BAD_REQUEST) {
/* 3XX */
status = r->headers_out.status - NGX_HTTP_MOVED_PERMANENTLY
+ NGX_HTTP_LEVEL_200;
if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED) {
r->header_only = 1;
}
} else if (r->headers_out.status < NGX_HTTP_INTERNAL_SERVER_ERROR) {
/* 4XX */
status = r->headers_out.status - NGX_HTTP_BAD_REQUEST
+ NGX_HTTP_LEVEL_200
+ NGX_HTTP_LEVEL_300;
} else {
/* 5XX */
status = r->headers_out.status - NGX_HTTP_INTERNAL_SERVER_ERROR
+ NGX_HTTP_LEVEL_200
+ NGX_HTTP_LEVEL_300
+ NGX_HTTP_LEVEL_400;
}
len += ngx_http_status_lines[status].len;
}
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (r->headers_out.server == NULL) {
len += clcf->server_tokens ? sizeof(ngx_http_server_full_string) - 1:
sizeof(ngx_http_server_string) - 1;
}
if (r->headers_out.date == NULL) {
len += sizeof("Date: Mon, 28 Sep 1970 06:00:00 GMT" CRLF) - 1;
}
if (r->headers_out.content_type.len) {
len += sizeof("Content-Type: ") - 1
+ r->headers_out.content_type.len + 2;
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
len += sizeof("; charset=") - 1 + r->headers_out.charset.len;
}
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
len += sizeof("Content-Length: ") - 1 + NGX_OFF_T_LEN + 2;
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
len += sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT" CRLF) - 1;
}
if (r->headers_out.location
&& r->headers_out.location->value.len
&& r->headers_out.location->value.data[0] == '/')
{
r->headers_out.location->hash = 0;
if (clcf->server_name_in_redirect) {
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
host = cscf->server_name;
} else if (r->headers_in.server.len) {
host = r->headers_in.server;
} else {
host.data = addr;
if (ngx_http_server_addr(r, &host) != NGX_OK) {
return NGX_ERROR;
}
}
#if (NGX_HTTP_SSL)
if (r->connection->ssl) {
len += sizeof("Location: https://") - 1
+ host.len
+ r->headers_out.location->value.len + 2;
if (clcf->port_in_redirect && r->port != 443) {
len += r->port_text->len;
}
} else
#endif
{
len += sizeof("Location: http://") - 1
+ host.len
+ r->headers_out.location->value.len + 2;
if (clcf->port_in_redirect && r->port != 80) {
len += r->port_text->len;
}
}
} else {
host.len = 0;
host.data = NULL;
}
if (r->chunked) {
len += sizeof("Transfer-Encoding: chunked" CRLF) - 1;
}
if (r->keepalive) {
len += sizeof("Connection: keep-alive" CRLF) - 1;
/*
* MSIE and Opera ignore the "Keep-Alive: timeout=<N>" header.
* MSIE keeps the connection alive for about 60-65 seconds.
* Opera keeps the connection alive very long.
* Mozilla keeps the connection alive for N plus about 1-10 seconds.
* Konqueror keeps the connection alive for about N seconds.
*/
if (clcf->keepalive_header) {
len += sizeof("Keep-Alive: timeout=") - 1 + NGX_TIME_T_LEN + 2;
}
} else {
len += sizeof("Connection: closed" CRLF) - 1;
}
#if (NGX_HTTP_GZIP)
if (r->gzip && clcf->gzip_vary) {
len += sizeof("Vary: Accept-Encoding" CRLF) - 1;
}
#endif
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
len += header[i].key.len + sizeof(": ") - 1 + header[i].value.len
+ sizeof(CRLF) - 1;
}
b = ngx_create_temp_buf(r->pool, len);
if (b == NULL) {
return NGX_ERROR;
}
/* "HTTP/1.x " */
b->last = ngx_cpymem(b->last, "HTTP/1.1 ", sizeof("HTTP/1.x ") - 1);
/* status line */
if (r->headers_out.status_line.len) {
b->last = ngx_copy(b->last, r->headers_out.status_line.data,
r->headers_out.status_line.len);
} else {
b->last = ngx_copy(b->last, ngx_http_status_lines[status].data,
ngx_http_status_lines[status].len);
}
*b->last++ = CR; *b->last++ = LF;
if (r->headers_out.server == NULL) {
if (clcf->server_tokens) {
p = (u_char *) ngx_http_server_full_string;
len = sizeof(ngx_http_server_full_string) - 1;
} else {
p = (u_char *) ngx_http_server_string;
len = sizeof(ngx_http_server_string) - 1;
}
b->last = ngx_cpymem(b->last, p, len);
}
if (r->headers_out.date == NULL) {
b->last = ngx_cpymem(b->last, "Date: ", sizeof("Date: ") - 1);
b->last = ngx_cpymem(b->last, ngx_cached_http_time.data,
ngx_cached_http_time.len);
*b->last++ = CR; *b->last++ = LF;
}
if (r->headers_out.content_type.len) {
b->last = ngx_cpymem(b->last, "Content-Type: ",
sizeof("Content-Type: ") - 1);
p = b->last;
b->last = ngx_copy(b->last, r->headers_out.content_type.data,
r->headers_out.content_type.len);
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
b->last = ngx_cpymem(b->last, "; charset=",
sizeof("; charset=") - 1);
b->last = ngx_copy(b->last, r->headers_out.charset.data,
r->headers_out.charset.len);
/* update r->headers_out.content_type for possible logging */
r->headers_out.content_type.len = b->last - p;
r->headers_out.content_type.data = p;
}
*b->last++ = CR; *b->last++ = LF;
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
b->last = ngx_sprintf(b->last, "Content-Length: %O" CRLF,
r->headers_out.content_length_n);
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
b->last = ngx_cpymem(b->last, "Last-Modified: ",
sizeof("Last-Modified: ") - 1);
b->last = ngx_http_time(b->last, r->headers_out.last_modified_time);
*b->last++ = CR; *b->last++ = LF;
}
if (host.data) {
p = b->last + sizeof("Location: ") - 1;
b->last = ngx_cpymem(b->last, "Location: http",
sizeof("Location: http") - 1);
#if (NGX_HTTP_SSL)
if (r->connection->ssl) {
*b->last++ ='s';
}
#endif
*b->last++ = ':'; *b->last++ = '/'; *b->last++ = '/';
b->last = ngx_copy(b->last, host.data, host.len);
if (clcf->port_in_redirect) {
#if (NGX_HTTP_SSL)
if (r->connection->ssl) {
if (r->port != 443) {
b->last = ngx_copy(b->last, r->port_text->data,
r->port_text->len);
}
} else
#endif
{
if (r->port != 80) {
b->last = ngx_copy(b->last, r->port_text->data,
r->port_text->len);
}
}
}
b->last = ngx_copy(b->last, r->headers_out.location->value.data,
r->headers_out.location->value.len);
/* update r->headers_out.location->value for possible logging */
r->headers_out.location->value.len = b->last - p;
r->headers_out.location->value.data = p;
r->headers_out.location->key.len = sizeof("Location: ") - 1;
r->headers_out.location->key.data = (u_char *) "Location: ";
*b->last++ = CR; *b->last++ = LF;
}
if (r->chunked) {
b->last = ngx_cpymem(b->last, "Transfer-Encoding: chunked" CRLF,
sizeof("Transfer-Encoding: chunked" CRLF) - 1);
}
if (r->keepalive) {
b->last = ngx_cpymem(b->last, "Connection: keep-alive" CRLF,
sizeof("Connection: keep-alive" CRLF) - 1);
if (clcf->keepalive_header) {
b->last = ngx_sprintf(b->last, "Keep-Alive: timeout=%T" CRLF,
clcf->keepalive_header);
}
} else {
b->last = ngx_cpymem(b->last, "Connection: close" CRLF,
sizeof("Connection: close" CRLF) - 1);
}
#if (NGX_HTTP_GZIP)
if (r->gzip && clcf->gzip_vary) {
b->last = ngx_cpymem(b->last, "Vary: Accept-Encoding" CRLF,
sizeof("Vary: Accept-Encoding" CRLF) - 1);
}
#endif
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
*b->last++ = ':'; *b->last++ = ' ';
b->last = ngx_copy(b->last, header[i].value.data, header[i].value.len);
*b->last++ = CR; *b->last++ = LF;
}
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"%*s\n", (size_t) (b->last - b->pos), b->pos);
/* the end of HTTP header */
*b->last++ = CR; *b->last++ = LF;
r->header_size = b->last - b->pos;
if (r->header_only) {
b->last_buf = 1;
}
out.buf = b;
out.next = NULL;
return ngx_http_write_filter(r, &out);
}
static ngx_http_spdy_stream_t *
ngx_http_spdy_create_stream(ngx_http_spdy_connection_t *sc, ngx_uint_t id,
ngx_uint_t priority)
{
ngx_log_t *log;
ngx_uint_t index;
ngx_event_t *rev, *wev;
ngx_connection_t *fc;
ngx_http_log_ctx_t *ctx;
ngx_http_request_t *r;
ngx_http_spdy_stream_t *stream;
ngx_http_core_srv_conf_t *cscf;
ngx_http_spdy_srv_conf_t *sscf;
fc = sc->free_fake_connections;
if (fc) {
sc->free_fake_connections = fc->data;
rev = fc->read;
wev = fc->write;
log = fc->log;
ctx = log->data;
} else {
fc = ngx_palloc(sc->pool, sizeof(ngx_connection_t));
if (fc == NULL) {
return NULL;
}
rev = ngx_palloc(sc->pool, sizeof(ngx_event_t));
if (rev == NULL) {
return NULL;
}
wev = ngx_palloc(sc->pool, sizeof(ngx_event_t));
if (wev == NULL) {
return NULL;
}
log = ngx_palloc(sc->pool, sizeof(ngx_log_t));
if (log == NULL) {
return NULL;
}
ctx = ngx_palloc(sc->pool, sizeof(ngx_http_log_ctx_t));
if (ctx == NULL) {
return NULL;
}
ctx->connection = fc;
ctx->request = NULL;
}
ngx_memcpy(log, sc->connection->log, sizeof(ngx_log_t));
log->data = ctx;
ngx_memzero(rev, sizeof(ngx_event_t));
rev->data = fc;
rev->ready = 1;
rev->handler = ngx_http_empty_handler;
rev->log = log;
ngx_memcpy(wev, rev, sizeof(ngx_event_t));
wev->write = 1;
ngx_memcpy(fc, sc->connection, sizeof(ngx_connection_t));
fc->data = sc->http_connection;
fc->read = rev;
fc->write = wev;
fc->sent = 0;
fc->log = log;
fc->buffered = 0;
fc->sndlowat = 1;
fc->tcp_nodelay = NGX_TCP_NODELAY_DISABLED;
r = ngx_http_create_request(fc);
if (r == NULL) {
return NULL;
}
r->valid_location = 1;
fc->data = r;
sc->connection->requests++;
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
r->header_in = ngx_create_temp_buf(r->pool,
cscf->client_header_buffer_size);
if (r->header_in == NULL) {
ngx_http_free_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return NULL;
}
r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
stream = ngx_pcalloc(r->pool, sizeof(ngx_http_spdy_stream_t));
if (stream == NULL) {
ngx_http_free_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return NULL;
}
r->spdy_stream = stream;
stream->id = id;
stream->request = r;
stream->connection = sc;
stream->priority = priority;
sscf = ngx_http_get_module_srv_conf(r, ngx_http_spdy_module);
index = ngx_http_spdy_stream_index(sscf, id);
stream->index = sc->streams_index[index];
sc->streams_index[index] = stream;
sc->processing++;
return stream;
}
static ngx_int_t ngx_http_small_light_header_filter(ngx_http_request_t *r)
{
ngx_http_small_light_conf_t *srv_conf;
ngx_http_small_light_conf_t *loc_conf;
ngx_http_small_light_ctx_t *ctx;
ngx_hash_init_t hash;
ngx_str_t define_pattern;
if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED) {
return ngx_http_next_header_filter(r);
}
srv_conf = ngx_http_get_module_srv_conf(r, ngx_http_small_light_module);
loc_conf = ngx_http_get_module_loc_conf(r, ngx_http_small_light_module);
if (!loc_conf->enable) {
return ngx_http_next_header_filter(r);
}
if(ngx_http_small_light_parse_define_pattern(r, &r->unparsed_uri, &define_pattern) != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return ngx_http_next_header_filter(r);
}
ctx = ngx_http_get_module_ctx(r, ngx_http_small_light_module);
if (ctx) {
ngx_http_set_ctx(r, NULL, ngx_http_small_light_module);
return ngx_http_next_header_filter(r);
}
if ((ctx = ngx_pcalloc(r->pool, sizeof(*ctx))) == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
ngx_memzero(ctx, sizeof(ngx_http_small_light_ctx_t));
ctx->params.keys.pool = r->pool;
ctx->params.temp_pool = r->pool;
if (ngx_hash_keys_array_init(&ctx->params, NGX_HASH_SMALL) != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
if (ngx_http_small_light_init_params(r, ctx, &define_pattern, srv_conf) != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
hash.hash = &ctx->hash;
hash.key = ngx_hash_key_lc;
hash.max_size = 128;
hash.bucket_size = ngx_cacheline_size;
hash.name = "small_light_init_params";
hash.pool = ctx->params.keys.pool;
hash.temp_pool = NULL;
if (ngx_hash_init(&hash, ctx->params.keys.elts, ctx->params.keys.nelts) != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
ctx->inf = r->headers_out.content_type.data;
ctx->content_length = r->headers_out.content_length_n;
ngx_http_set_ctx(r, ctx, ngx_http_small_light_module);
if (r->headers_out.refresh) {
r->headers_out.refresh->hash = 0;
}
r->main_filter_need_in_memory = 1;
r->allow_ranges = 0;
return NGX_OK;
}
static ngx_int_t ngx_http_small_light_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
{
ngx_http_small_light_conf_t *srv_conf;
ngx_http_small_light_conf_t *loc_conf;
ngx_http_small_light_ctx_t *ctx;
ngx_chain_t out;
ngx_int_t rc;
if (in == NULL) {
return ngx_http_next_body_filter(r, in);
}
srv_conf = ngx_http_get_module_srv_conf(r, ngx_http_small_light_module);
loc_conf = ngx_http_get_module_loc_conf(r, ngx_http_small_light_module);
if (!loc_conf->enable) {
return ngx_http_next_body_filter(r, in);
}
ctx = ngx_http_get_module_ctx(r, ngx_http_small_light_module);
if (ctx == NULL) {
return ngx_http_next_body_filter(r, in);
}
if (ctx->ictx == NULL) {
ctx->ictx = ngx_pcalloc(r->pool, sizeof(ngx_http_small_light_imagemagick_ctx_t));
if (ctx->ictx == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
}
if((rc = ngx_http_small_light_image_read(r, in, ctx)) != NGX_OK) {
if (rc == NGX_AGAIN) {
return NGX_OK;
}
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
r->connection->buffered &= ~NGX_HTTP_SMALL_LIGHT_IMAGE_BUFFERED;
ngx_http_small_light_imagemagick_init(ctx);
rc = ngx_http_small_light_imagemagick_process(r, ctx);
ngx_http_small_light_imagemagick_term(ctx);
if (rc != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
ngx_buf_t *b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
if (b == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
b->pos = ctx->content;
b->last = ctx->content + ctx->content_length;
b->memory = 1;
b->last_buf = 1;
out.buf = b;
out.next = NULL;
r->headers_out.content_length_n = b->last - b->pos;
if (r->headers_out.content_length) {
r->headers_out.content_length->hash = 0;
}
r->headers_out.content_length = NULL;
ngx_pool_cleanup_t *cln;
cln = ngx_pool_cleanup_add(r->pool, 0);
if (cln == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s:%d", __FUNCTION__, __LINE__);
return NGX_ERROR;
}
cln->handler = ngx_http_small_light_cleanup;
cln->data = ctx;
return ngx_http_small_light_finish(r, &out);
}
static ngx_int_t
ngx_http_header_filter(ngx_http_request_t *r)
{
u_char *p;
size_t len;
ngx_str_t host, *status_line;
ngx_buf_t *b;
ngx_uint_t status, i, port;
ngx_chain_t out;
ngx_list_part_t *part;
ngx_table_elt_t *header;
ngx_connection_t *c;
ngx_http_core_loc_conf_t *clcf;
ngx_http_core_srv_conf_t *cscf;
struct sockaddr_in *sin;
#if (NGX_HAVE_INET6)
struct sockaddr_in6 *sin6;
#endif
u_char addr[NGX_SOCKADDR_STRLEN];
if (r->header_sent) {
return NGX_OK;
}
r->header_sent = 1;
if (r != r->main) {
return NGX_OK;
}
if (r->http_version < NGX_HTTP_VERSION_10) {
return NGX_OK;
}
if (r->method == NGX_HTTP_HEAD) {
r->header_only = 1;
}
if (r->headers_out.last_modified_time != -1) {
if (r->headers_out.status != NGX_HTTP_OK
&& r->headers_out.status != NGX_HTTP_PARTIAL_CONTENT
&& r->headers_out.status != NGX_HTTP_NOT_MODIFIED)
{
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
}
}
len = sizeof("HTTP/1.x ") - 1 + sizeof(CRLF) - 1
/* the end of the header */
+ sizeof(CRLF) - 1;
/* status line */
if (r->headers_out.status_line.len) {
len += r->headers_out.status_line.len;
status_line = &r->headers_out.status_line;
#if (NGX_SUPPRESS_WARN)
status = 0;
#endif
} else {
status = r->headers_out.status;
if (status >= NGX_HTTP_OK
&& status < NGX_HTTP_LAST_2XX)
{
/* 2XX */
if (status == NGX_HTTP_NO_CONTENT) {
r->header_only = 1;
ngx_str_null(&r->headers_out.content_type);
r->headers_out.last_modified_time = -1;
r->headers_out.last_modified = NULL;
r->headers_out.content_length = NULL;
r->headers_out.content_length_n = -1;
}
status -= NGX_HTTP_OK;
status_line = &ngx_http_status_lines[status];
len += ngx_http_status_lines[status].len;
} else if (status >= NGX_HTTP_MOVED_PERMANENTLY
&& status < NGX_HTTP_LAST_3XX)
{
/* 3XX */
if (status == NGX_HTTP_NOT_MODIFIED) {
r->header_only = 1;
}
status = status - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX;
status_line = &ngx_http_status_lines[status];
len += ngx_http_status_lines[status].len;
} else if (status >= NGX_HTTP_BAD_REQUEST
&& status < NGX_HTTP_LAST_4XX)
{
/* 4XX */
status = status - NGX_HTTP_BAD_REQUEST
+ NGX_HTTP_OFF_4XX;
status_line = &ngx_http_status_lines[status];
len += ngx_http_status_lines[status].len;
} else if (status >= NGX_HTTP_INTERNAL_SERVER_ERROR
&& status < NGX_HTTP_LAST_5XX)
{
/* 5XX */
status = status - NGX_HTTP_INTERNAL_SERVER_ERROR
+ NGX_HTTP_OFF_5XX;
status_line = &ngx_http_status_lines[status];
len += ngx_http_status_lines[status].len;
} else {
len += NGX_INT_T_LEN + 1 /* SP */;
status_line = NULL;
}
if (status_line && status_line->len == 0) {
status = r->headers_out.status;
len += NGX_INT_T_LEN + 1 /* SP */;
status_line = NULL;
}
}
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (r->headers_out.server == NULL) {
len += clcf->server_tokens ? sizeof(ngx_http_server_full_string) - 1:
sizeof(ngx_http_server_string) - 1;
}
if (r->headers_out.date == NULL) {
len += sizeof("Date: Mon, 28 Sep 1970 06:00:00 GMT" CRLF) - 1;
}
if (r->headers_out.content_type.len) {
len += sizeof("Content-Type: ") - 1
+ r->headers_out.content_type.len + 2;
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
len += sizeof("; charset=") - 1 + r->headers_out.charset.len;
}
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
len += sizeof("Content-Length: ") - 1 + NGX_OFF_T_LEN + 2;
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
len += sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT" CRLF) - 1;
}
c = r->connection;
if (r->headers_out.location
&& r->headers_out.location->value.len
&& r->headers_out.location->value.data[0] == '/')
{
r->headers_out.location->hash = 0;
if (clcf->server_name_in_redirect) {
cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
host = cscf->server_name;
} else if (r->headers_in.server.len) {
host = r->headers_in.server;
} else {
host.len = NGX_SOCKADDR_STRLEN;
host.data = addr;
if (ngx_connection_local_sockaddr(c, &host, 0) != NGX_OK) {
return NGX_ERROR;
}
}
switch (c->local_sockaddr->sa_family) {
#if (NGX_HAVE_INET6)
case AF_INET6:
sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
port = ntohs(sin6->sin6_port);
break;
#endif
#if (NGX_HAVE_UNIX_DOMAIN)
case AF_UNIX:
port = 0;
break;
#endif
default: /* AF_INET */
sin = (struct sockaddr_in *) c->local_sockaddr;
port = ntohs(sin->sin_port);
break;
}
len += sizeof("Location: https://") - 1
+ host.len
+ r->headers_out.location->value.len + 2;
if (clcf->port_in_redirect) {
#if (NGX_HTTP_SSL)
if (c->ssl)
port = (port == 443) ? 0 : port;
else
#endif
port = (port == 80) ? 0 : port;
} else {
port = 0;
}
if (port) {
len += sizeof(":65535") - 1;
}
} else {
ngx_str_null(&host);
port = 0;
}
if (r->chunked) {
len += sizeof("Transfer-Encoding: chunked" CRLF) - 1;
}
if (r->headers_out.status == NGX_HTTP_SWITCHING_PROTOCOLS) {
len += sizeof("Connection: upgrade" CRLF) - 1;
} else if (r->keepalive) {
len += sizeof("Connection: keep-alive" CRLF) - 1;
/*
* MSIE and Opera ignore the "Keep-Alive: timeout=<N>" header.
* MSIE keeps the connection alive for about 60-65 seconds.
* Opera keeps the connection alive very long.
* Mozilla keeps the connection alive for N plus about 1-10 seconds.
* Konqueror keeps the connection alive for about N seconds.
*/
if (clcf->keepalive_header) {
len += sizeof("Keep-Alive: timeout=") - 1 + NGX_TIME_T_LEN + 2;
}
} else {
len += sizeof("Connection: close" CRLF) - 1;
}
#if (NGX_HTTP_GZIP)
if (r->gzip_vary) {
if (clcf->gzip_vary) {
len += sizeof("Vary: Accept-Encoding" CRLF) - 1;
} else {
r->gzip_vary = 0;
}
}
#endif
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
len += header[i].key.len + sizeof(": ") - 1 + header[i].value.len
+ sizeof(CRLF) - 1;
}
b = ngx_create_temp_buf(r->pool, len);
if (b == NULL) {
return NGX_ERROR;
}
/* "HTTP/1.x " */
b->last = ngx_cpymem(b->last, "HTTP/1.1 ", sizeof("HTTP/1.x ") - 1);
/* status line */
if (status_line) {
b->last = ngx_copy(b->last, status_line->data, status_line->len);
} else {
b->last = ngx_sprintf(b->last, "%03ui ", status);
}
*b->last++ = CR; *b->last++ = LF;
if (r->headers_out.server == NULL) {
if (clcf->server_tokens) {
p = (u_char *) ngx_http_server_full_string;
len = sizeof(ngx_http_server_full_string) - 1;
} else {
p = (u_char *) ngx_http_server_string;
len = sizeof(ngx_http_server_string) - 1;
}
b->last = ngx_cpymem(b->last, p, len);
}
if (r->headers_out.date == NULL) {
b->last = ngx_cpymem(b->last, "Date: ", sizeof("Date: ") - 1);
b->last = ngx_cpymem(b->last, ngx_cached_http_time.data,
ngx_cached_http_time.len);
*b->last++ = CR; *b->last++ = LF;
}
if (r->headers_out.content_type.len) {
b->last = ngx_cpymem(b->last, "Content-Type: ",
sizeof("Content-Type: ") - 1);
p = b->last;
b->last = ngx_copy(b->last, r->headers_out.content_type.data,
r->headers_out.content_type.len);
if (r->headers_out.content_type_len == r->headers_out.content_type.len
&& r->headers_out.charset.len)
{
b->last = ngx_cpymem(b->last, "; charset=",
sizeof("; charset=") - 1);
b->last = ngx_copy(b->last, r->headers_out.charset.data,
r->headers_out.charset.len);
/* update r->headers_out.content_type for possible logging */
r->headers_out.content_type.len = b->last - p;
r->headers_out.content_type.data = p;
}
*b->last++ = CR; *b->last++ = LF;
}
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
b->last = ngx_sprintf(b->last, "Content-Length: %O" CRLF,
r->headers_out.content_length_n);
}
if (r->headers_out.last_modified == NULL
&& r->headers_out.last_modified_time != -1)
{
b->last = ngx_cpymem(b->last, "Last-Modified: ",
sizeof("Last-Modified: ") - 1);
b->last = ngx_http_time(b->last, r->headers_out.last_modified_time);
*b->last++ = CR; *b->last++ = LF;
}
if (host.data) {
p = b->last + sizeof("Location: ") - 1;
b->last = ngx_cpymem(b->last, "Location: http",
sizeof("Location: http") - 1);
#if (NGX_HTTP_SSL)
if (c->ssl) {
*b->last++ ='s';
}
#endif
*b->last++ = ':'; *b->last++ = '/'; *b->last++ = '/';
b->last = ngx_copy(b->last, host.data, host.len);
if (port) {
b->last = ngx_sprintf(b->last, ":%ui", port);
}
b->last = ngx_copy(b->last, r->headers_out.location->value.data,
r->headers_out.location->value.len);
/* update r->headers_out.location->value for possible logging */
r->headers_out.location->value.len = b->last - p;
r->headers_out.location->value.data = p;
ngx_str_set(&r->headers_out.location->key, "Location");
*b->last++ = CR; *b->last++ = LF;
}
if (r->chunked) {
b->last = ngx_cpymem(b->last, "Transfer-Encoding: chunked" CRLF,
sizeof("Transfer-Encoding: chunked" CRLF) - 1);
}
if (r->headers_out.status == NGX_HTTP_SWITCHING_PROTOCOLS) {
b->last = ngx_cpymem(b->last, "Connection: upgrade" CRLF,
sizeof("Connection: upgrade" CRLF) - 1);
} else if (r->keepalive) {
b->last = ngx_cpymem(b->last, "Connection: keep-alive" CRLF,
sizeof("Connection: keep-alive" CRLF) - 1);
if (clcf->keepalive_header) {
b->last = ngx_sprintf(b->last, "Keep-Alive: timeout=%T" CRLF,
clcf->keepalive_header);
}
} else {
b->last = ngx_cpymem(b->last, "Connection: close" CRLF,
sizeof("Connection: close" CRLF) - 1);
}
#if (NGX_HTTP_GZIP)
if (r->gzip_vary) {
b->last = ngx_cpymem(b->last, "Vary: Accept-Encoding" CRLF,
sizeof("Vary: Accept-Encoding" CRLF) - 1);
}
#endif
part = &r->headers_out.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (header[i].hash == 0) {
continue;
}
b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
*b->last++ = ':'; *b->last++ = ' ';
b->last = ngx_copy(b->last, header[i].value.data, header[i].value.len);
*b->last++ = CR; *b->last++ = LF;
}
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
"%*s", (size_t) (b->last - b->pos), b->pos);
/* the end of HTTP header */
*b->last++ = CR; *b->last++ = LF;
r->header_size = b->last - b->pos;
if (r->header_only) {
b->last_buf = 1;
}
out.buf = b;
out.next = NULL;
return ngx_http_write_filter(r, &out);
}
static ngx_int_t
ngx_http_set_virtual_server(ngx_http_request_t *r, ngx_str_t *host)
{
ngx_int_t rc;
ngx_http_connection_t *hc;
ngx_http_core_loc_conf_t *clcf;
ngx_http_core_srv_conf_t *cscf = NULL;
hc = r->http_connection;
#if (NGX_HTTP_SSL && defined SSL_CTRL_SET_TLSEXT_HOSTNAME)
if (hc->ssl_servername) {
if (hc->ssl_servername->len == host->len
&& ngx_strncmp(hc->ssl_servername->data,
host->data, host->len) == 0)
{
#if (NGX_PCRE)
if (hc->ssl_servername_regex
&& ngx_http_regex_exec(r, hc->ssl_servername_regex,
hc->ssl_servername) != NGX_OK)
{
ngx_tcp2http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return NGX_ERROR;
}
#endif
return NGX_OK;
}
}
#endif
rc = ngx_http_find_virtual_server(r->connection,
hc->addr_conf->virtual_names,
host, r, &cscf);
if (rc == NGX_ERROR) {
ngx_tcp2http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return NGX_ERROR;
}
#if (NGX_HTTP_SSL && defined SSL_CTRL_SET_TLSEXT_HOSTNAME)
if (hc->ssl_servername) {
ngx_http_ssl_srv_conf_t *sscf;
if (rc == NGX_DECLINED) {
cscf = hc->addr_conf->default_server;
rc = NGX_OK;
}
sscf = ngx_http_get_module_srv_conf(cscf->ctx, ngx_http_ssl_module);
if (sscf->verify) {
ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
"client attempted to request the server name "
"different from that one was negotiated");
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return NGX_ERROR;
}
}
#endif
if (rc == NGX_DECLINED) {
return NGX_OK;
}
r->srv_conf = cscf->ctx->srv_conf;
r->loc_conf = cscf->ctx->loc_conf;
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
ngx_http_set_connection_log(r->connection, clcf->error_log);
return NGX_OK;
}
static ngx_int_t
create_request(ngx_http_request_t *r)
{
u_char ch;
u_char buf[sizeof("4294967296")];
size_t len, size, key_len, val_len, content_length;
const u_char *app_type_string;
size_t app_type_string_len;
u_char framework_spawner_idle_time_string[12];
u_char app_spawner_idle_time_string[12];
u_char *end;
ngx_uint_t i, n;
ngx_buf_t *b;
ngx_chain_t *cl, *body;
ngx_list_part_t *part;
ngx_table_elt_t *header;
ngx_http_script_code_pt code;
ngx_http_script_engine_t e, le;
passenger_loc_conf_t *slcf;
passenger_main_conf_t *main_conf;
passenger_context_t *context;
ngx_http_script_len_code_pt lcode;
#if (NGX_HTTP_SSL)
ngx_http_ssl_srv_conf_t *ssl_conf;
#endif
slcf = ngx_http_get_module_loc_conf(r, ngx_http_passenger_module);
main_conf = &passenger_main_conf;
context = ngx_http_get_module_ctx(r, ngx_http_passenger_module);
if (context == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
switch (context->app_type) {
case AP_RAILS:
app_type_string = (const u_char *) "rails";
app_type_string_len = sizeof("rails");
break;
case AP_RACK:
app_type_string = (const u_char *) "rack";
app_type_string_len = sizeof("rack");
break;
case AP_WSGI:
app_type_string = (const u_char *) "wsgi";
app_type_string_len = sizeof("wsgi");
break;
default:
app_type_string = (const u_char *) "rails";
app_type_string_len = sizeof("rails");
break;
}
/**************************************************
* Determine the request header length.
**************************************************/
/* Length of the Content-Length header. */
if (r->headers_in.content_length_n < 0) {
content_length = 0;
} else {
content_length = r->headers_in.content_length_n;
}
uint_to_str(content_length, buf, sizeof(buf));
/* +1 for trailing null */
len = sizeof("CONTENT_LENGTH") + ngx_strlen(buf) + 1;
/* DOCUMENT_ROOT, SCRIPT_NAME and base URI */
len += sizeof("DOCUMENT_ROOT") + context->public_dir.len + 1;
if (context->base_uri.len > 0) {
len += sizeof("SCRIPT_NAME") + context->base_uri.len + 1;
len += sizeof("RAILS_RELATIVE_URL_ROOT") +
context->base_uri.len + 1;
} else {
len += sizeof("SCRIPT_NAME") + sizeof("");
}
/* Various other HTTP headers. */
if (r->headers_in.content_type != NULL
&& r->headers_in.content_type->value.len > 0) {
len += sizeof("CONTENT_TYPE") + r->headers_in.content_type->value.len + 1;
}
#if (NGX_HTTP_SSL)
ssl_conf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
if (ssl_conf->enable) {
len += sizeof("HTTPS") + sizeof("on");
}
#endif
/* Lengths of Passenger application pool options. */
if (slcf->use_global_queue) {
len += sizeof("PASSENGER_USE_GLOBAL_QUEUE") + sizeof("true");
} else {
len += sizeof("PASSENGER_USE_GLOBAL_QUEUE") + sizeof("false");
}
len += sizeof("PASSENGER_ENVIRONMENT") + slcf->environment.len + 1;
len += sizeof("PASSENGER_SPAWN_METHOD") + slcf->spawn_method.len + 1;
len += sizeof("PASSENGER_APP_TYPE") + app_type_string_len;
end = ngx_snprintf(framework_spawner_idle_time_string,
sizeof(framework_spawner_idle_time_string) - 1,
"%d", slcf->framework_spawner_idle_time);
*end = '\0';
len += sizeof("PASSENGER_FRAMEWORK_SPAWNER_IDLE_TIME") +
ngx_strlen(framework_spawner_idle_time_string) + 1;
end = ngx_snprintf(app_spawner_idle_time_string,
sizeof(app_spawner_idle_time_string) - 1,
"%d", slcf->app_spawner_idle_time);
*end = '\0';
len += sizeof("PASSENGER_APP_SPAWNER_IDLE_TIME") +
ngx_strlen(app_spawner_idle_time_string) + 1;
/* Lengths of various CGI variables. */
if (slcf->vars_len) {
ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
ngx_http_script_flush_no_cacheable_variables(r, slcf->flushes);
le.flushed = 1;
le.ip = slcf->vars_len->elts;
le.request = r;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
key_len = lcode(&le);
for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
le.ip += sizeof(uintptr_t);
len += key_len + val_len;
}
}
/* Lengths of HTTP headers. */
if (slcf->upstream.pass_request_headers) {
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
len += sizeof("HTTP_") - 1 + header[i].key.len + 1
+ header[i].value.len + 1;
}
}
/* Trailing dummy header.
*
* If the last header value is an empty string, then the buffer
* will end with "\0\0". For example, if 'SSL_CLIENT_CERT'
* is the last header and it has an empty value, then the SCGI header
* will end with:
*
* "SSL_CLIENT_CERT\0\0"
*
* The data in the buffer will be processed by the AbstractRequestHandler class,
* which is implemented in Ruby. But it uses Hash[*data.split("\0")] to
* unserialize the data. Unfortunately String#split will not transform
* the trailing "\0\0" into an empty string:
*
* "SSL_CLIENT_CERT\0\0".split("\0")
* # => desired result: ["SSL_CLIENT_CERT", ""]
* # => actual result: ["SSL_CLIENT_CERT"]
*
* When that happens, Hash[..] will raise an ArgumentError because
* data.split("\0") does not return an array with a length that is a
* multiple of 2.
*
* So here, we add a dummy header to prevent situations like that from
* happening.
*/
len += sizeof("_") + sizeof("_");
/**************************************************
* Build the request header data.
**************************************************/
size = passenger_helper_server_password.len +
/* netstring length + ":" + trailing "," */
/* note: 10 == sizeof("4294967296") - 1 */
len + 10 + 1 + 1;
b = ngx_create_temp_buf(r->pool, size);
if (b == NULL) {
return NGX_ERROR;
}
cl = ngx_alloc_chain_link(r->pool);
if (cl == NULL) {
return NGX_ERROR;
}
cl->buf = b;
/* Build SCGI header netstring length part. */
b->last = ngx_copy(b->last, passenger_helper_server_password.data,
passenger_helper_server_password.len);
b->last = ngx_snprintf(b->last, 10, "%ui", len);
*b->last++ = (u_char) ':';
/* Build CONTENT_LENGTH header. This must always be sent, even if 0. */
b->last = ngx_copy(b->last, "CONTENT_LENGTH",
sizeof("CONTENT_LENGTH"));
b->last = ngx_snprintf(b->last, 10, "%ui", content_length);
*b->last++ = (u_char) 0;
/* Build DOCUMENT_ROOT, SCRIPT_NAME and base URI. */
b->last = ngx_copy(b->last, "DOCUMENT_ROOT", sizeof("DOCUMENT_ROOT"));
b->last = ngx_copy(b->last, context->public_dir.data,
context->public_dir.len + 1);
if (context->base_uri.len > 0) {
b->last = ngx_copy(b->last, "SCRIPT_NAME", sizeof("SCRIPT_NAME"));
b->last = ngx_copy(b->last, context->base_uri.data,
context->base_uri.len + 1);
b->last = ngx_copy(b->last, "RAILS_RELATIVE_URL_ROOT",
sizeof("RAILS_RELATIVE_URL_ROOT"));
b->last = ngx_copy(b->last, context->base_uri.data,
context->base_uri.len + 1);
} else {
b->last = ngx_copy(b->last, "SCRIPT_NAME", sizeof("SCRIPT_NAME"));
b->last = ngx_copy(b->last, "", sizeof(""));
}
/* Various other HTTP headers. */
if (r->headers_in.content_type != NULL
&& r->headers_in.content_type->value.len > 0) {
b->last = ngx_copy(b->last, "CONTENT_TYPE", sizeof("CONTENT_TYPE"));
b->last = ngx_copy(b->last, r->headers_in.content_type->value.data,
r->headers_in.content_type->value.len + 1);
}
#if (NGX_HTTP_SSL)
ssl_conf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
if (ssl_conf->enable) {
b->last = ngx_copy(b->last, "HTTPS", sizeof("HTTPS"));
b->last = ngx_copy(b->last, "on", sizeof("on"));
}
#endif
/* Build Passenger application pool option headers. */
b->last = ngx_copy(b->last, "PASSENGER_USE_GLOBAL_QUEUE",
sizeof("PASSENGER_USE_GLOBAL_QUEUE"));
if (slcf->use_global_queue) {
b->last = ngx_copy(b->last, "true", sizeof("true"));
} else {
b->last = ngx_copy(b->last, "false", sizeof("false"));
}
b->last = ngx_copy(b->last, "PASSENGER_ENVIRONMENT",
sizeof("PASSENGER_ENVIRONMENT"));
b->last = ngx_copy(b->last, slcf->environment.data,
slcf->environment.len + 1);
b->last = ngx_copy(b->last, "PASSENGER_SPAWN_METHOD",
sizeof("PASSENGER_SPAWN_METHOD"));
b->last = ngx_copy(b->last, slcf->spawn_method.data,
slcf->spawn_method.len + 1);
b->last = ngx_copy(b->last, "PASSENGER_APP_TYPE",
sizeof("PASSENGER_APP_TYPE"));
b->last = ngx_copy(b->last, app_type_string, app_type_string_len);
b->last = ngx_copy(b->last, "PASSENGER_FRAMEWORK_SPAWNER_IDLE_TIME",
sizeof("PASSENGER_FRAMEWORK_SPAWNER_IDLE_TIME"));
b->last = ngx_copy(b->last, framework_spawner_idle_time_string,
ngx_strlen(framework_spawner_idle_time_string) + 1);
b->last = ngx_copy(b->last, "PASSENGER_APP_SPAWNER_IDLE_TIME",
sizeof("PASSENGER_APP_SPAWNER_IDLE_TIME"));
b->last = ngx_copy(b->last, app_spawner_idle_time_string,
ngx_strlen(app_spawner_idle_time_string) + 1);
if (slcf->vars_len) {
ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
e.ip = slcf->vars->elts;
e.pos = b->last;
e.request = r;
e.flushed = 1;
le.ip = slcf->vars_len->elts;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
(void) lcode(&le);
for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
le.ip += sizeof(uintptr_t);
while (*(uintptr_t *) e.ip) {
code = *(ngx_http_script_code_pt *) e.ip;
code((ngx_http_script_engine_t *) &e);
}
e.ip += sizeof(uintptr_t);
}
b->last = e.pos;
}
if (slcf->upstream.pass_request_headers) {
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
b->last = ngx_cpymem(b->last, "HTTP_", sizeof("HTTP_") - 1);
for (n = 0; n < header[i].key.len; n++) {
ch = header[i].key.data[n];
if (ch >= 'a' && ch <= 'z') {
ch &= ~0x20;
} else if (ch == '-') {
ch = '_';
}
*b->last++ = ch;
}
*b->last++ = (u_char) 0;
b->last = ngx_copy(b->last, header[i].value.data,
header[i].value.len);
*b->last++ = (u_char) 0;
}
}
/* Trailing dummy header. See earlier comment for explanation. */
b->last = ngx_copy(b->last, "_\0_", sizeof("_\0_"));
*b->last++ = (u_char) ',';
if (slcf->upstream.pass_request_body) {
body = r->upstream->request_bufs;
r->upstream->request_bufs = cl;
while (body) {
b = ngx_alloc_buf(r->pool);
if (b == NULL) {
return NGX_ERROR;
}
ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
cl->next = ngx_alloc_chain_link(r->pool);
if (cl->next == NULL) {
return NGX_ERROR;
}
cl = cl->next;
cl->buf = b;
body = body->next;
}
b->flush = 1;
} else {
r->upstream->request_bufs = cl;
}
cl->next = NULL;
return NGX_OK;
}
static ngx_int_t ngx_http_small_light_header_filter(ngx_http_request_t *r)
{
ngx_http_small_light_conf_t *srv_conf;
ngx_http_small_light_conf_t *loc_conf;
ngx_http_small_light_ctx_t *ctx;
ngx_hash_init_t hash_init;
ngx_str_t define_pattern;
char *converter;
if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED ||
r->headers_out.content_length_n == 0)
{
return ngx_http_next_header_filter(r);
}
srv_conf = ngx_http_get_module_srv_conf(r, ngx_http_small_light_module);
loc_conf = ngx_http_get_module_loc_conf(r, ngx_http_small_light_module);
if (!loc_conf->enable) {
return ngx_http_next_header_filter(r);
}
if (!loc_conf->enable_getparam_mode) {
if(ngx_http_small_light_parse_define_pattern(r, &r->unparsed_uri, &define_pattern) != NGX_OK) {
return ngx_http_next_header_filter(r);
}
}
ctx = ngx_http_get_module_ctx(r, ngx_http_small_light_module);
if (ctx) {
ngx_http_set_ctx(r, NULL, ngx_http_small_light_module);
return ngx_http_next_header_filter(r);
}
if ((ctx = ngx_pcalloc(r->pool, sizeof(*ctx))) == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"failed to allocate memory from r->pool %s:%d",
__FUNCTION__,
__LINE__);
return NGX_ERROR;
}
ctx->params.keys.pool = r->pool;
ctx->params.temp_pool = r->pool;
if (ngx_hash_keys_array_init(&ctx->params, NGX_HASH_SMALL) != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"failed to init hash keys for parameters %s:%d",
__FUNCTION__,
__LINE__);
return NGX_ERROR;
}
if (loc_conf->enable_getparam_mode) {
if (ngx_http_small_light_init_getparams(r, ctx, srv_conf) != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"failed to analyze parameters:%V %s:%d",
&define_pattern,
__FUNCTION__,
__LINE__);
return NGX_ERROR;
}
} else {
if (ngx_http_small_light_init_params(r, ctx, &define_pattern, srv_conf) != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"failed to analyze parameters:%V %s:%d",
&define_pattern,
__FUNCTION__,
__LINE__);
return NGX_ERROR;
}
}
hash_init.hash = &ctx->hash;
hash_init.key = ngx_hash_key_lc;
hash_init.max_size = 128;
hash_init.bucket_size = ngx_cacheline_size;
hash_init.name = "small_light_init_params";
hash_init.pool = ctx->params.keys.pool;
hash_init.temp_pool = NULL;
if (ngx_hash_init(&hash_init, ctx->params.keys.elts, ctx->params.keys.nelts) != NGX_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"failed to init hash table for parameters %s:%d",
__FUNCTION__,
__LINE__);
return NGX_ERROR;
}
ctx->inf = (char *)r->headers_out.content_type.data;
ctx->material_dir = &srv_conf->material_dir;
ctx->imlib2_temp_dir = loc_conf->imlib2_temp_dir;
if (r->headers_out.content_length_n < 0) {
ctx->content_length = loc_conf->buffer_size;
} else {
ctx->content_length = r->headers_out.content_length_n;
}
converter = NGX_HTTP_SMALL_LIGHT_PARAM_GET_LIT(&ctx->hash, "e");
if (ngx_strcmp(converter, NGX_HTTP_SMALL_LIGHT_CONVERTER_IMAGEMAGICK) == 0) {
ctx->converter.init = ngx_http_small_light_imagemagick_init;
ctx->converter.term = ngx_http_small_light_imagemagick_term;
ctx->converter.process = ngx_http_small_light_imagemagick_process;
ctx->ictx = ngx_pcalloc(r->pool, sizeof(ngx_http_small_light_imagemagick_ctx_t));
#ifdef NGX_HTTP_SMALL_LIGHT_IMLIB2_ENABLED
} else if (ngx_strcmp(converter, NGX_HTTP_SMALL_LIGHT_CONVERTER_IMLIB2) == 0) {
ctx->converter.init = ngx_http_small_light_imlib2_init;
ctx->converter.term = ngx_http_small_light_imlib2_term;
ctx->converter.process = ngx_http_small_light_imlib2_process;
ctx->ictx = ngx_pcalloc(r->pool, sizeof(ngx_http_small_light_imlib2_ctx_t));
#endif
#ifdef NGX_HTTP_SMALL_LIGHT_GD_ENABLED
} else if (ngx_strcmp(converter, NGX_HTTP_SMALL_LIGHT_CONVERTER_GD) == 0) {
ctx->converter.init = ngx_http_small_light_gd_init;
ctx->converter.term = ngx_http_small_light_gd_term;
ctx->converter.process = ngx_http_small_light_gd_process;
ctx->ictx = ngx_pcalloc(r->pool, sizeof(ngx_http_small_light_gd_ctx_t));
#endif
} else {
ctx->converter.init = ngx_http_small_light_imagemagick_init;
ctx->converter.term = ngx_http_small_light_imagemagick_term;
ctx->converter.process = ngx_http_small_light_imagemagick_process;
ctx->ictx = ngx_pcalloc(r->pool, sizeof(ngx_http_small_light_imagemagick_ctx_t));
}
if (ctx->ictx == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"failed to allocate memory from r->pool %s:%d",
__FUNCTION__,
__LINE__);
return NGX_ERROR;
}
ngx_http_set_ctx(r, ctx, ngx_http_small_light_module);
if (r->headers_out.refresh) {
r->headers_out.refresh->hash = 0;
}
r->main_filter_need_in_memory = 1;
r->allow_ranges = 0;
return NGX_OK;
}
static ngx_int_t
ngx_http_traffic_status_handler(ngx_http_request_t *r)
{
ngx_int_t rc;
ngx_buf_t *b;
ngx_chain_t out;
u_char ngx_traffic_status_string[1024] = {0};
ngx_uint_t i;
ngx_http_traffic_status_rule_t *rucf = NULL;
ngx_http_traffic_status_local_conf_t *local_conf = NULL;
ngx_int_t offset = 0;
ngx_log_error(NGX_LOG_EMERG, r->connection->log, 0, "ngx_http_traffic_status_handler is called!");
/* we response to 'GET' and 'HEAD' requests only */
if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) {
return NGX_HTTP_NOT_ALLOWED;
}
rucf = ngx_http_get_module_srv_conf(r, ngx_http_traffic_status_module);
if (NULL == rucf) {
return NGX_ERROR;
}
local_conf = ngx_http_get_module_loc_conf(r, ngx_http_traffic_status_module);
/* not enable */
if (!(local_conf->req_flag | local_conf->pkt_flag | local_conf->status_flag)) {
return NGX_HTTP_NOT_ALLOWED;
}
/* request times calculate */
if (local_conf->req_flag) {
ngx_sprintf(ngx_traffic_status_string + offset, "http request times: %d\n",
rucf->request_cnt);
offset += ngx_strlen(ngx_traffic_status_string);
}
if (local_conf->pkt_flag) {
/* recevie bytes */
ngx_sprintf(ngx_traffic_status_string + offset, "recevie packet bytes: %d\n",
rucf->recv_bytes);
offset += ngx_strlen(ngx_traffic_status_string);
/* send bytes */
ngx_sprintf(ngx_traffic_status_string + offset, "send packet bytes: %d\n",
rucf->send_bytes);
offset += ngx_strlen(ngx_traffic_status_string);
}
if (local_conf->status_flag) {
ngx_sprintf(ngx_traffic_status_string + offset, "---- http status ----\n");
offset += ngx_strlen(ngx_traffic_status_string);
ngx_sprintf(ngx_traffic_status_string + offset, "---------------------\n");
offset += ngx_strlen(ngx_traffic_status_string);
for (i = 0; i < NGX_HTTP_STATUS_CODES_NUM; i++) {
if (rucf->status_codes_cnt[i] > 0) {
ngx_sprintf(ngx_traffic_status_string + offset, "%d: %d\n",
i + NGX_HTTP_OK, rucf->status_codes_cnt[i]);
offset += ngx_strlen(ngx_traffic_status_string);
}
}
ngx_sprintf(ngx_traffic_status_string + offset, "---------------------\n");
offset += ngx_strlen(ngx_traffic_status_string);
}
/* discard request body, since we don't need it here */
rc = ngx_http_discard_request_body(r);
if (rc != NGX_OK) {
return rc;
}
/* set the 'Content-type' header */
ngx_str_set(&r->headers_out.content_type, "text/html");
/* send the header only, if the request type is http 'HEAD' */
if (r->method == NGX_HTTP_HEAD) {
r->headers_out.status = NGX_HTTP_OK;
r->headers_out.content_length_n = offset;
return ngx_http_send_header(r);
}
/* allocate a buffer for your response body */
b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
if (b == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
/* attach this buffer to the buffer chain */
out.buf = b;
out.next = NULL;
/* adjust the pointers of the buffer */
b->pos = ngx_traffic_status_string;
b->last = ngx_traffic_status_string + offset;
b->memory = 1; /* this buffer is in memory */
b->last_buf = 1; /* this is the last buffer in the buffer chain */
/* set the status line */
r->headers_out.status = NGX_HTTP_OK;
r->headers_out.content_length_n = offset;
/* send the headers of your response */
rc = ngx_http_send_header(r);
if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
return rc;
}
/* send the buffer chain of your response */
return ngx_http_output_filter(r, &out);
}
