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nginx/src/http/modules/ngx_http_uwsgi_module.c
Igor Sysoev 3a881d30b5 import original ngx_http_uwsgi_module version
2010-06-01 15:53:11 +00:00

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/*
* Copyright (C) Unbit S.a.s. 2009-2010
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* heavily based on Manlio's mod_scgi, mod_fastcgi and mod_proxy of nginx 0.7.x
*/
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>
#define NGX_HTTP_UWSGI_TEMP_PATH "uwsgi_temp"
typedef struct {
ngx_http_upstream_conf_t upstream;
ngx_array_t *flushes;
ngx_array_t *params_len;
ngx_array_t *params;
ngx_array_t *params_source;
ngx_array_t *uwsgi_lengths;
ngx_array_t *uwsgi_values;
ngx_str_t uwsgi_string ;
u_char modifier1;
u_char modifier2;
} ngx_http_uwsgi_loc_conf_t;
typedef struct {
ngx_uint_t status;
ngx_uint_t status_count;
u_char *status_start;
u_char *status_end;
} ngx_http_uwsgi_ctx_t;
#define NGX_HTTP_XCGI_PARSE_NO_HEADER 20
#ifndef NGX_HAVE_LITTLE_ENDIAN
static uint16_t
uwsgi_swap16 (uint16_t x)
{
return (uint16_t) ((x & 0xff) << 8 | (x & 0xff00) >> 8);
}
#endif
static ngx_int_t ngx_http_uwsgi_eval (ngx_http_request_t * r,
ngx_http_uwsgi_loc_conf_t * uwcf);
static ngx_int_t ngx_http_uwsgi_create_request (ngx_http_request_t * r);
static ngx_int_t ngx_http_uwsgi_reinit_request (ngx_http_request_t * r);
static ngx_int_t ngx_http_uwsgi_process_status_line (ngx_http_request_t * r);
static ngx_int_t ngx_http_uwsgi_parse_status_line (ngx_http_request_t * r,
ngx_http_uwsgi_ctx_t *
ctx);
static ngx_int_t ngx_http_uwsgi_process_header (ngx_http_request_t * r);
static ngx_int_t ngx_http_uwsgi_process_header (ngx_http_request_t * r);
static void ngx_http_uwsgi_abort_request (ngx_http_request_t * r);
static void ngx_http_uwsgi_finalize_request (ngx_http_request_t * r,
ngx_int_t rc);
static char *ngx_http_uwsgi_modifier1 (ngx_conf_t * cf, ngx_command_t * cmd,
void *conf);
static char *ngx_http_uwsgi_modifier2 (ngx_conf_t * cf, ngx_command_t * cmd,
void *conf);
static ngx_int_t ngx_http_uwsgi_add_variables (ngx_conf_t * cf);
static void *ngx_http_uwsgi_create_loc_conf (ngx_conf_t * cf);
static char *ngx_http_uwsgi_merge_loc_conf (ngx_conf_t * cf,
void *parent, void *child);
static char *ngx_http_uwsgi_pass (ngx_conf_t * cf, ngx_command_t * cmd,
void *conf);
static ngx_conf_bitmask_t ngx_http_uwsgi_next_upstream_masks[] = {
{ngx_string ("error"), NGX_HTTP_UPSTREAM_FT_ERROR},
{ngx_string ("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT},
{ngx_string ("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER},
{ngx_string ("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500},
{ngx_string ("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503},
{ngx_string ("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404},
{ngx_string ("updating"), NGX_HTTP_UPSTREAM_FT_UPDATING},
{ngx_string ("off"), NGX_HTTP_UPSTREAM_FT_OFF},
{ngx_null_string, 0}
};
static ngx_conf_bitmask_t ngx_http_uwsgi_ignore_headers_masks[] = {
{ngx_string ("X-Accel-Redirect"), NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT},
{ngx_string ("X-Accel-Expires"), NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES},
{ngx_string ("Expires"), NGX_HTTP_UPSTREAM_IGN_EXPIRES},
{ngx_string ("Cache-Control"), NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL},
{ngx_null_string, 0}
};
ngx_module_t ngx_http_uwsgi_module;
static ngx_command_t ngx_http_uwsgi_commands[] = {
{ngx_string ("uwsgi_pass"),
NGX_HTTP_LOC_CONF | NGX_HTTP_LIF_CONF | NGX_CONF_TAKE1,
ngx_http_uwsgi_pass,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL},
{ngx_string ("uwsgi_modifier1"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_http_uwsgi_modifier1,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL},
{ngx_string ("uwsgi_modifier2"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_http_uwsgi_modifier2,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL},
{ngx_string ("uwsgi_ignore_client_abort"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_FLAG,
ngx_conf_set_flag_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.ignore_client_abort),
NULL},
{ngx_string ("uwsgi_connect_timeout"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_conf_set_msec_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.connect_timeout),
NULL},
{ngx_string ("uwsgi_send_timeout"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_conf_set_msec_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.send_timeout),
NULL},
{ngx_string ("uwsgi_buffer_size"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.buffer_size),
NULL},
{ngx_string ("uwsgi_pass_request_headers"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_FLAG,
ngx_conf_set_flag_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.pass_request_headers),
NULL},
{ngx_string ("uwsgi_pass_request_body"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_FLAG,
ngx_conf_set_flag_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.pass_request_body),
NULL},
{ngx_string ("uwsgi_intercept_errors"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_FLAG,
ngx_conf_set_flag_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.intercept_errors),
NULL},
{ngx_string ("uwsgi_read_timeout"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_conf_set_msec_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.read_timeout),
NULL},
{ngx_string ("uwsgi_buffers"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE2,
ngx_conf_set_bufs_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.bufs),
NULL},
{ngx_string ("uwsgi_busy_buffers_size"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.busy_buffers_size_conf),
NULL},
{ngx_string ("uwsgi_temp_path"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1234,
ngx_conf_set_path_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.temp_path),
NULL},
{ngx_string ("uwsgi_max_temp_file_size"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.max_temp_file_size_conf),
NULL},
{ngx_string ("uwsgi_temp_file_write_size"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.temp_file_write_size_conf),
NULL},
{ngx_string ("uwsgi_next_upstream"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_1MORE,
ngx_conf_set_bitmask_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.next_upstream),
&ngx_http_uwsgi_next_upstream_masks},
{ngx_string ("uwsgi_param"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE2,
ngx_conf_set_keyval_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, params_source),
NULL},
{ ngx_string("uwsgi_string"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_TAKE1,
ngx_conf_set_str_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_uwsgi_loc_conf_t, uwsgi_string),
NULL },
{ngx_string ("uwsgi_pass_header"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_FLAG,
ngx_conf_set_str_array_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.pass_headers),
NULL},
{ngx_string ("uwsgi_hide_header"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_FLAG,
ngx_conf_set_str_array_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.hide_headers),
NULL},
{ngx_string ("uwsgi_ignore_headers"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_CONF_1MORE,
ngx_conf_set_bitmask_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof (ngx_http_uwsgi_loc_conf_t, upstream.ignore_headers),
&ngx_http_uwsgi_ignore_headers_masks},
ngx_null_command
};
static ngx_http_module_t ngx_http_uwsgi_module_ctx = {
ngx_http_uwsgi_add_variables, /* preconfiguration */
NULL, /* postconfiguration */
NULL, /* create main configuration */
NULL, /* init main configuration */
NULL, /* create server configuration */
NULL, /* merge server configuration */
ngx_http_uwsgi_create_loc_conf, /* create location configuration */
ngx_http_uwsgi_merge_loc_conf /* merge location configuration */
};
ngx_module_t ngx_http_uwsgi_module = {
NGX_MODULE_V1,
&ngx_http_uwsgi_module_ctx, /* module context */
ngx_http_uwsgi_commands, /* module directives */
NGX_HTTP_MODULE, /* module type */
NULL, /* init master */
NULL, /* init module */
NULL, /* init process */
NULL, /* init thread */
NULL, /* exit thread */
NULL, /* exit process */
NULL, /* exit master */
NGX_MODULE_V1_PADDING
};
static ngx_http_variable_t ngx_http_uwsgi_vars[] = {
{ngx_null_string, NULL, NULL, 0, 0, 0}
};
static ngx_str_t ngx_http_uwsgi_hide_headers[] = {
ngx_string ("Status"),
ngx_string ("X-Accel-Expires"),
ngx_string ("X-Accel-Redirect"),
ngx_string ("X-Accel-Limit-Rate"),
ngx_string ("X-Accel-Buffering"),
ngx_string ("X-Accel-Charset"),
ngx_null_string
};
static ngx_path_init_t ngx_http_uwsgi_temp_path = {
ngx_string (NGX_HTTP_UWSGI_TEMP_PATH), {1, 2, 0}
};
static ngx_int_t
ngx_http_uwsgi_handler (ngx_http_request_t * r)
{
ngx_int_t rc;
ngx_http_upstream_t *u;
ngx_http_uwsgi_ctx_t *f;
ngx_http_uwsgi_loc_conf_t *uwcf;
if (r->subrequest_in_memory) {
ngx_log_error (NGX_LOG_ALERT, r->connection->log, 0,
"ngx_http_uwsgi_module does not support "
"subrequest in memory");
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
if (ngx_http_upstream_create (r) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
f = ngx_pcalloc (r->pool, sizeof (ngx_http_uwsgi_ctx_t));
if (f == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
ngx_http_set_ctx (r, f, ngx_http_uwsgi_module);
uwcf = ngx_http_get_module_loc_conf (r, ngx_http_uwsgi_module);
if (uwcf->uwsgi_lengths) {
if (ngx_http_uwsgi_eval (r, uwcf) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
}
u = r->upstream;
u->schema.len = sizeof ("uwsgi://") - 1;
u->schema.data = (u_char *) "uwsgi://";
u->output.tag = (ngx_buf_tag_t) & ngx_http_uwsgi_module;
u->conf = &uwcf->upstream;
u->create_request = ngx_http_uwsgi_create_request;
u->reinit_request = ngx_http_uwsgi_reinit_request;
u->process_header = ngx_http_uwsgi_process_status_line;
u->abort_request = ngx_http_uwsgi_abort_request;
u->finalize_request = ngx_http_uwsgi_finalize_request;
u->buffering = 1;
u->pipe = ngx_pcalloc (r->pool, sizeof (ngx_event_pipe_t));
if (u->pipe == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
u->pipe->input_filter = ngx_event_pipe_copy_input_filter;
u->pipe->input_ctx = r;
rc = ngx_http_read_client_request_body (r, ngx_http_upstream_init);
if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
return rc;
}
return NGX_DONE;
}
static ngx_int_t
ngx_http_uwsgi_eval (ngx_http_request_t * r, ngx_http_uwsgi_loc_conf_t * uwcf)
{
ngx_url_t u;
ngx_memzero (&u, sizeof (ngx_url_t));
if (ngx_http_script_run (r, &u.url, uwcf->uwsgi_lengths->elts, 0,
uwcf->uwsgi_values->elts) == NULL) {
return NGX_ERROR;
}
u.no_resolve = 1;
if (ngx_parse_url (r->pool, &u) != NGX_OK) {
if (u.err) {
ngx_log_error (NGX_LOG_ERR, r->connection->log, 0,
"%s in upstream \"%V\"", u.err, &u.url);
}
return NGX_ERROR;
}
if (u.no_port) {
ngx_log_error (NGX_LOG_ERR, r->connection->log, 0,
"no port in upstream \"%V\"", &u.url);
return NGX_ERROR;
}
r->upstream->resolved = ngx_pcalloc (r->pool,
sizeof
(ngx_http_upstream_resolved_t));
if (r->upstream->resolved == NULL) {
return NGX_ERROR;
}
if (u.addrs && u.addrs[0].sockaddr) {
r->upstream->resolved->sockaddr = u.addrs[0].sockaddr;
r->upstream->resolved->socklen = u.addrs[0].socklen;
r->upstream->resolved->naddrs = 1;
r->upstream->resolved->host = u.addrs[0].name;
}
else {
r->upstream->resolved->host = u.host;
r->upstream->resolved->port = u.port;
}
return NGX_OK;
}
static ngx_int_t
ngx_http_uwsgi_create_request (ngx_http_request_t * r)
{
u_char ch, *pos, tmp[2];
size_t key_len, val_len;
uint16_t uwsgi_pkt_size, uwsgi_strlen;
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_uwsgi_loc_conf_t *uwcf;
ngx_http_script_len_code_pt lcode;
uwsgi_pkt_size = 0;
uwcf = ngx_http_get_module_loc_conf (r, ngx_http_uwsgi_module);
if (uwcf->params_len) {
ngx_memzero (&le, sizeof (ngx_http_script_engine_t));
ngx_http_script_flush_no_cacheable_variables (r, uwcf->flushes);
le.flushed = 1;
le.ip = uwcf->params_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);
uwsgi_pkt_size += 2 + key_len + 2 + val_len;
}
}
if (uwcf->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;
}
uwsgi_pkt_size +=
2 + 5 + header[i].key.len + 2 + header[i].value.len;
}
}
if (uwcf->uwsgi_string.data && uwcf->uwsgi_string.len) {
uwsgi_pkt_size += uwcf->uwsgi_string.len ;
}
/* allow custom uwsgi packet
if (uwsgi_pkt_size > 0 && uwsgi_pkt_size < 2) {
ngx_log_error (NGX_LOG_ALERT, r->connection->log, 0,
"uwsgi request is too little: %uz", uwsgi_pkt_size);
return NGX_ERROR;
}
*/
b = ngx_create_temp_buf (r->pool, uwsgi_pkt_size + 4);
if (b == NULL) {
return NGX_ERROR;
}
cl = ngx_alloc_chain_link (r->pool);
if (cl == NULL) {
return NGX_ERROR;
}
cl->buf = b;
*b->pos = uwcf->modifier1;
#ifndef NGX_HAVE_LITTLE_ENDIAN
uwsgi_pkt_size = uwsgi_swap16 (uwsgi_pkt_size);
#endif
b->last = ngx_cpymem (b->pos + 1, &uwsgi_pkt_size, 2);
*(b->pos + 3) = uwcf->modifier2;
b->last++;
if (uwcf->params_len) {
ngx_memzero (&e, sizeof (ngx_http_script_engine_t));
e.ip = uwcf->params->elts;
e.pos = b->last;
e.request = r;
e.flushed = 1;
le.ip = uwcf->params_len->elts;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
key_len = (u_char) 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);
#ifndef NGX_HAVE_LITTLE_ENDIAN
uwsgi_strlen = uwsgi_swap16 (key_len);
#else
uwsgi_strlen = key_len;
#endif
e.pos = ngx_cpymem (e.pos, &uwsgi_strlen, 2);
while (*(uintptr_t *) e.ip) {
code = *(ngx_http_script_code_pt *) e.ip;
code ((ngx_http_script_engine_t *) & e);
}
pos = e.pos - val_len;
/* move memory */
for (i = 0; i < val_len; i += 2) {
e.pos = ngx_cpymem (tmp, pos + (i) + 2, 2);
e.pos = ngx_cpymem (pos + (i) + 2, pos, 2);
e.pos = ngx_cpymem (pos, tmp, 2);
}
e.pos = pos;
#ifndef NGX_HAVE_LITTLE_ENDIAN
uwsgi_strlen = uwsgi_swap16 (val_len);
#else
uwsgi_strlen = val_len;
#endif
e.pos = ngx_cpymem (e.pos, &uwsgi_strlen, 2);
e.pos += val_len;
e.ip += sizeof (uintptr_t);
}
b->last = e.pos;
}
if (uwcf->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;
}
#ifndef NGX_HAVE_LITTLE_ENDIAN
uwsgi_strlen = uwsgi_swap16 (5 + header[i].key.len);
#else
uwsgi_strlen = 5 + header[i].key.len;
#endif
b->last = ngx_cpymem (b->last, &uwsgi_strlen, 2);
b->last = ngx_cpymem (b->last, "HTTP_", 5);
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;
}
#ifndef NGX_HAVE_LITTLE_ENDIAN
uwsgi_strlen = uwsgi_swap16 (header[i].value.len);
#else
uwsgi_strlen = header[i].value.len;
#endif
b->last = ngx_cpymem (b->last, &uwsgi_strlen, 2);
b->last =
ngx_copy (b->last, header[i].value.data, header[i].value.len);
}
}
if (uwcf->uwsgi_string.data && uwcf->uwsgi_string.len) {
b->last = ngx_copy(b->last, uwcf->uwsgi_string.data, uwcf->uwsgi_string.len);
}
if (uwcf->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_uwsgi_reinit_request (ngx_http_request_t * r)
{
ngx_http_uwsgi_ctx_t *s;
s = ngx_http_get_module_ctx (r, ngx_http_uwsgi_module);
if (s == NULL) {
return NGX_OK;
}
s->status = 0;
s->status_count = 0;
s->status_start = NULL;
s->status_end = NULL;
r->upstream->process_header = ngx_http_uwsgi_process_status_line;
return NGX_OK;
}
static ngx_int_t
ngx_http_uwsgi_parse_status_line (ngx_http_request_t * r,
ngx_http_uwsgi_ctx_t * ctx)
{
u_char ch;
u_char *p;
ngx_http_upstream_t *u;
enum {
sw_start = 0,
sw_H,
sw_HT,
sw_HTT,
sw_HTTP,
sw_first_major_digit,
sw_major_digit,
sw_first_minor_digit,
sw_minor_digit,
sw_status,
sw_space_after_status,
sw_status_text,
sw_almost_done
} state;
u = r->upstream;
state = r->state;
for (p = u->buffer.pos; p < u->buffer.last; p++) {
ch = *p;
switch (state) {
/* "HTTP/" */
case sw_start:
switch (ch) {
case 'H':
state = sw_H;
break;
default:
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
break;
case sw_H:
switch (ch) {
case 'T':
state = sw_HT;
break;
default:
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
break;
case sw_HT:
switch (ch) {
case 'T':
state = sw_HTT;
break;
default:
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
break;
case sw_HTT:
switch (ch) {
case 'P':
state = sw_HTTP;
break;
default:
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
break;
case sw_HTTP:
switch (ch) {
case '/':
state = sw_first_major_digit;
break;
default:
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
break;
/* the first digit of major HTTP version */
case sw_first_major_digit:
if (ch < '1' || ch > '9') {
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
state = sw_major_digit;
break;
/* the major HTTP version or dot */
case sw_major_digit:
if (ch == '.') {
state = sw_first_minor_digit;
break;
}
if (ch < '0' || ch > '9') {
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
break;
/* the first digit of minor HTTP version */
case sw_first_minor_digit:
if (ch < '0' || ch > '9') {
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
state = sw_minor_digit;
break;
/* the minor HTTP version or the end of the request line */
case sw_minor_digit:
if (ch == ' ') {
state = sw_status;
break;
}
if (ch < '0' || ch > '9') {
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
break;
/* HTTP status code */
case sw_status:
if (ch == ' ') {
break;
}
if (ch < '0' || ch > '9') {
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
ctx->status = ctx->status * 10 + ch - '0';
if (++ctx->status_count == 3) {
state = sw_space_after_status;
ctx->status_start = p - 2;
}
break;
/* space or end of line */
case sw_space_after_status:
switch (ch) {
case ' ':
state = sw_status_text;
break;
case '.': /* IIS may send 403.1, 403.2, etc */
state = sw_status_text;
break;
case CR:
state = sw_almost_done;
break;
case LF:
goto done;
default:
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
break;
/* any text until end of line */
case sw_status_text:
switch (ch) {
case CR:
state = sw_almost_done;
break;
case LF:
goto done;
}
break;
/* end of status line */
case sw_almost_done:
ctx->status_end = p - 1;
switch (ch) {
case LF:
goto done;
default:
return NGX_HTTP_XCGI_PARSE_NO_HEADER;
}
}
}
u->buffer.pos = p;
r->state = state;
return NGX_AGAIN;
done:
u->buffer.pos = p + 1;
if (ctx->status_end == NULL) {
ctx->status_end = p;
}
r->state = sw_start;
return NGX_OK;
}
static ngx_int_t
ngx_http_uwsgi_process_status_line (ngx_http_request_t * r)
{
ngx_int_t rc;
ngx_http_upstream_t *u;
ngx_http_uwsgi_ctx_t *ctx;
ctx = ngx_http_get_module_ctx (r, ngx_http_uwsgi_module);
if (ctx == NULL) {
return NGX_ERROR;
}
rc = ngx_http_uwsgi_parse_status_line (r, ctx);
if (rc == NGX_AGAIN) {
return rc;
}
u = r->upstream;
if (rc == NGX_HTTP_XCGI_PARSE_NO_HEADER) {
ngx_log_error (NGX_LOG_ERR, r->connection->log, 0,
"upstream sent no valid HTTP/1.0 header");
r->http_version = NGX_HTTP_VERSION_9;
u->headers_in.status_n = NGX_HTTP_OK;
u->state->status = NGX_HTTP_OK;
return NGX_OK;
}
if (u->state) {
u->state->status = ctx->status;
}
u->headers_in.status_n = ctx->status;
u->headers_in.status_line.len = ctx->status_end - ctx->status_start;
u->headers_in.status_line.data = ngx_pnalloc (r->pool,
u->headers_in.
status_line.len);
if (u->headers_in.status_line.data == NULL) {
return NGX_ERROR;
}
ngx_memcpy (u->headers_in.status_line.data, ctx->status_start,
u->headers_in.status_line.len);
ngx_log_debug2 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http uwsgi status %ui \"%V\"",
u->headers_in.status_n, &u->headers_in.status_line);
u->process_header = ngx_http_uwsgi_process_header;
return ngx_http_uwsgi_process_header (r);
}
static ngx_int_t
ngx_http_uwsgi_process_header (ngx_http_request_t * r)
{
ngx_int_t rc;
ngx_table_elt_t *h;
ngx_http_upstream_header_t *hh;
ngx_http_upstream_main_conf_t *umcf;
umcf = ngx_http_get_module_main_conf (r, ngx_http_upstream_module);
for (;;) {
rc = ngx_http_parse_header_line (r, &r->upstream->buffer, 1);
if (rc == NGX_OK) {
/* a header line has been parsed successfully */
h = ngx_list_push (&r->upstream->headers_in.headers);
if (h == NULL) {
return NGX_ERROR;
}
h->hash = r->header_hash;
h->key.len = r->header_name_end - r->header_name_start;
h->value.len = r->header_end - r->header_start;
h->key.data = ngx_pnalloc (r->pool,
h->key.len + 1 + h->value.len + 1 +
h->key.len);
if (h->key.data == NULL) {
return NGX_ERROR;
}
h->value.data = h->key.data + h->key.len + 1;
h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1;
ngx_cpystrn (h->key.data, r->header_name_start, h->key.len + 1);
ngx_cpystrn (h->value.data, r->header_start, h->value.len + 1);
if (h->key.len == r->lowcase_index) {
ngx_memcpy (h->lowcase_key, r->lowcase_header, h->key.len);
}
else {
ngx_strlow (h->lowcase_key, h->key.data, h->key.len);
}
hh = ngx_hash_find (&umcf->headers_in_hash, h->hash,
h->lowcase_key, h->key.len);
if (hh && hh->handler (r, h, hh->offset) != NGX_OK) {
return NGX_ERROR;
}
ngx_log_debug2 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http uwsgi header: \"%V: %V\"",
&h->key, &h->value);
continue;
}
if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
/* a whole header has been parsed successfully */
ngx_log_debug0 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http uwsgi header done");
/*
* if no "Server" and "Date" in header line,
* then add the special empty headers
*/
if (r->upstream->headers_in.server == NULL) {
h = ngx_list_push (&r->upstream->headers_in.headers);
if (h == NULL) {
return NGX_ERROR;
}
h->hash =
ngx_hash (ngx_hash
(ngx_hash
(ngx_hash (ngx_hash ('s', 'e'), 'r'),
'v'), 'e'), 'r');
h->key.len = sizeof ("Server") - 1;
h->key.data = (u_char *) "Server";
h->value.len = 0;
h->value.data = NULL;
h->lowcase_key = (u_char *) "server";
}
if (r->upstream->headers_in.date == NULL) {
h = ngx_list_push (&r->upstream->headers_in.headers);
if (h == NULL) {
return NGX_ERROR;
}
h->hash = ngx_hash (ngx_hash (ngx_hash ('d', 'a'), 't'), 'e');
h->key.len = sizeof ("Date") - 1;
h->key.data = (u_char *) "Date";
h->value.len = 0;
h->value.data = NULL;
h->lowcase_key = (u_char *) "date";
}
return NGX_OK;
}
if (rc == NGX_AGAIN) {
return NGX_AGAIN;
}
/* there was error while a header line parsing */
ngx_log_error (NGX_LOG_ERR, r->connection->log, 0,
"upstream sent invalid header");
return NGX_HTTP_UPSTREAM_INVALID_HEADER;
}
}
static void
ngx_http_uwsgi_abort_request (ngx_http_request_t * r)
{
ngx_log_debug0 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"abort http uwsgi request");
return;
}
static void
ngx_http_uwsgi_finalize_request (ngx_http_request_t * r, ngx_int_t rc)
{
ngx_log_debug0 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"finalize http uwsgi request");
return;
}
static ngx_int_t
ngx_http_uwsgi_add_variables (ngx_conf_t * cf)
{
ngx_http_variable_t *var, *v;
for (v = ngx_http_uwsgi_vars; v->name.len; v++) {
var = ngx_http_add_variable (cf, &v->name, v->flags);
if (var == NULL) {
return NGX_ERROR;
}
var->get_handler = v->get_handler;
var->data = v->data;
}
return NGX_OK;
}
static void *
ngx_http_uwsgi_create_loc_conf (ngx_conf_t * cf)
{
ngx_http_uwsgi_loc_conf_t *conf;
conf = ngx_pcalloc (cf->pool, sizeof (ngx_http_uwsgi_loc_conf_t));
if (conf == NULL) {
return NULL;
}
conf->upstream.store = NGX_CONF_UNSET;
conf->upstream.store_access = NGX_CONF_UNSET_UINT;
conf->upstream.buffering = NGX_CONF_UNSET;
conf->upstream.ignore_client_abort = NGX_CONF_UNSET;
conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE;
conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
conf->upstream.pass_request_headers = NGX_CONF_UNSET;
conf->upstream.pass_request_body = NGX_CONF_UNSET;
conf->upstream.hide_headers = NGX_CONF_UNSET_PTR;
conf->upstream.pass_headers = NGX_CONF_UNSET_PTR;
conf->upstream.intercept_errors = NGX_CONF_UNSET;
/* "uwsgi_cyclic_temp_file" is disabled */
conf->upstream.cyclic_temp_file = 0;
return conf;
}
static char *
ngx_http_uwsgi_merge_loc_conf (ngx_conf_t * cf, void *parent, void *child)
{
ngx_http_uwsgi_loc_conf_t *prev = parent;
ngx_http_uwsgi_loc_conf_t *conf = child;
u_char *p;
size_t size;
uintptr_t *code;
ngx_uint_t i;
ngx_keyval_t *src;
ngx_hash_init_t hash;
ngx_http_script_compile_t sc;
ngx_http_script_copy_code_t *copy;
if (conf->upstream.store != 0) {
ngx_conf_merge_value (conf->upstream.store, prev->upstream.store, 0);
if (conf->upstream.store_lengths == NULL) {
conf->upstream.store_lengths = prev->upstream.store_lengths;
conf->upstream.store_values = prev->upstream.store_values;
}
}
ngx_conf_merge_uint_value (conf->upstream.store_access,
prev->upstream.store_access, 0600);
ngx_conf_merge_value (conf->upstream.buffering,
prev->upstream.buffering, 1);
ngx_conf_merge_value (conf->upstream.ignore_client_abort,
prev->upstream.ignore_client_abort, 0);
ngx_conf_merge_msec_value (conf->upstream.connect_timeout,
prev->upstream.connect_timeout, 60000);
ngx_conf_merge_msec_value (conf->upstream.send_timeout,
prev->upstream.send_timeout, 60000);
ngx_conf_merge_msec_value (conf->upstream.read_timeout,
prev->upstream.read_timeout, 60000);
ngx_conf_merge_size_value (conf->upstream.send_lowat,
prev->upstream.send_lowat, 0);
ngx_conf_merge_size_value (conf->upstream.buffer_size,
prev->upstream.buffer_size,
(size_t) ngx_pagesize);
ngx_conf_merge_bufs_value (conf->upstream.bufs, prev->upstream.bufs,
8, ngx_pagesize);
if (conf->upstream.bufs.num < 2) {
ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
"there must be at least 2 \"uwsgi_buffers\"");
return NGX_CONF_ERROR;
}
size = conf->upstream.buffer_size;
if (size < conf->upstream.bufs.size) {
size = conf->upstream.bufs.size;
}
ngx_conf_merge_size_value (conf->upstream.busy_buffers_size_conf,
prev->upstream.busy_buffers_size_conf,
NGX_CONF_UNSET_SIZE);
if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
conf->upstream.busy_buffers_size = 2 * size;
}
else {
conf->upstream.busy_buffers_size =
conf->upstream.busy_buffers_size_conf;
}
if (conf->upstream.busy_buffers_size < size) {
ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
"\"uwsgi_busy_buffers_size\" must be equal or bigger than "
"maximum of the value of \"uwsgi_buffer_size\" and "
"one of the \"uwsgi_buffers\"");
return NGX_CONF_ERROR;
}
if (conf->upstream.busy_buffers_size
> (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size) {
ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
"\"uwsgi_busy_buffers_size\" must be less than "
"the size of all \"uwsgi_buffers\" minus one buffer");
return NGX_CONF_ERROR;
}
ngx_conf_merge_size_value (conf->upstream.temp_file_write_size_conf,
prev->upstream.temp_file_write_size_conf,
NGX_CONF_UNSET_SIZE);
if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
conf->upstream.temp_file_write_size = 2 * size;
}
else {
conf->upstream.temp_file_write_size =
conf->upstream.temp_file_write_size_conf;
}
if (conf->upstream.temp_file_write_size < size) {
ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
"\"uwsgi_temp_file_write_size\" must be equal or bigger than "
"maximum of the value of \"uwsgi_buffer_size\" and "
"one of the \"uwsgi_buffers\"");
return NGX_CONF_ERROR;
}
ngx_conf_merge_size_value (conf->upstream.max_temp_file_size_conf,
prev->upstream.max_temp_file_size_conf,
NGX_CONF_UNSET_SIZE);
if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
}
else {
conf->upstream.max_temp_file_size =
conf->upstream.max_temp_file_size_conf;
}
if (conf->upstream.max_temp_file_size != 0
&& conf->upstream.max_temp_file_size < size) {
ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
"\"uwsgi_max_temp_file_size\" must be equal to zero to disable "
"the temporary files usage or must be equal or bigger than "
"maximum of the value of \"uwsgi_buffer_size\" and "
"one of the \"uwsgi_buffers\"");
return NGX_CONF_ERROR;
}
ngx_conf_merge_bitmask_value (conf->upstream.ignore_headers,
prev->upstream.ignore_headers,
NGX_CONF_BITMASK_SET);
ngx_conf_merge_bitmask_value (conf->upstream.next_upstream,
prev->upstream.next_upstream,
(NGX_CONF_BITMASK_SET
| NGX_HTTP_UPSTREAM_FT_ERROR
| NGX_HTTP_UPSTREAM_FT_TIMEOUT));
if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) {
conf->upstream.next_upstream = NGX_CONF_BITMASK_SET
| NGX_HTTP_UPSTREAM_FT_OFF;
}
if (ngx_conf_merge_path_value (cf, &conf->upstream.temp_path,
prev->upstream.temp_path,
&ngx_http_uwsgi_temp_path) != NGX_OK) {
return NGX_CONF_ERROR;
}
ngx_conf_merge_value (conf->upstream.pass_request_headers,
prev->upstream.pass_request_headers, 1);
ngx_conf_merge_value (conf->upstream.pass_request_body,
prev->upstream.pass_request_body, 1);
ngx_conf_merge_value (conf->upstream.intercept_errors,
prev->upstream.intercept_errors, 0);
ngx_conf_merge_str_value(conf->uwsgi_string, prev->uwsgi_string, "");
hash.max_size = 512;
hash.bucket_size = ngx_align (64, ngx_cacheline_size);
hash.name = "uwsgi_hide_headers_hash";
if (ngx_http_upstream_hide_headers_hash (cf, &conf->upstream,
&prev->upstream,
ngx_http_uwsgi_hide_headers,
&hash) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (conf->upstream.upstream == NULL) {
conf->upstream.upstream = prev->upstream.upstream;
}
if (conf->uwsgi_lengths == NULL) {
conf->uwsgi_lengths = prev->uwsgi_lengths;
conf->uwsgi_values = prev->uwsgi_values;
}
if (conf->modifier1 == 0) {
conf->modifier1 = prev->modifier1;
}
if (conf->modifier2 == 0) {
conf->modifier2 = prev->modifier2;
}
if (conf->params_source == NULL) {
conf->flushes = prev->flushes;
conf->params_len = prev->params_len;
conf->params = prev->params;
conf->params_source = prev->params_source;
if (conf->params_source == NULL) {
return NGX_CONF_OK;
}
}
conf->params_len = ngx_array_create (cf->pool, 64, 1);
if (conf->params_len == NULL) {
return NGX_CONF_ERROR;
}
conf->params = ngx_array_create (cf->pool, 512, 1);
if (conf->params == NULL) {
return NGX_CONF_ERROR;
}
src = conf->params_source->elts;
for (i = 0; i < conf->params_source->nelts; i++) {
if (ngx_http_script_variables_count (&src[i].value) == 0) {
copy = ngx_array_push_n (conf->params_len,
sizeof (ngx_http_script_copy_code_t));
if (copy == NULL) {
return NGX_CONF_ERROR;
}
copy->code = (ngx_http_script_code_pt)
ngx_http_script_copy_len_code;
copy->len = src[i].key.len;
copy = ngx_array_push_n (conf->params_len,
sizeof (ngx_http_script_copy_code_t));
if (copy == NULL) {
return NGX_CONF_ERROR;
}
copy->code = (ngx_http_script_code_pt)
ngx_http_script_copy_len_code;
copy->len = src[i].value.len;
size = (sizeof (ngx_http_script_copy_code_t)
+ src[i].key.len + src[i].value.len
+ sizeof (uintptr_t) - 1) & ~(sizeof (uintptr_t) - 1);
copy = ngx_array_push_n (conf->params, size);
if (copy == NULL) {
return NGX_CONF_ERROR;
}
copy->code = ngx_http_script_copy_code;
copy->len = src[i].key.len + src[i].value.len;
p = (u_char *) copy + sizeof (ngx_http_script_copy_code_t);
p = ngx_cpymem (p, src[i].key.data, src[i].key.len);
ngx_memcpy (p, src[i].value.data, src[i].value.len);
}
else {
copy = ngx_array_push_n (conf->params_len,
sizeof (ngx_http_script_copy_code_t));
if (copy == NULL) {
return NGX_CONF_ERROR;
}
copy->code = (ngx_http_script_code_pt)
ngx_http_script_copy_len_code;
copy->len = src[i].key.len;
size = (sizeof (ngx_http_script_copy_code_t)
+ src[i].key.len + sizeof (uintptr_t) - 1)
& ~(sizeof (uintptr_t) - 1);
copy = ngx_array_push_n (conf->params, size);
if (copy == NULL) {
return NGX_CONF_ERROR;
}
copy->code = ngx_http_script_copy_code;
copy->len = src[i].key.len;
p = (u_char *) copy + sizeof (ngx_http_script_copy_code_t);
ngx_memcpy (p, src[i].key.data, src[i].key.len);
ngx_memzero (&sc, sizeof (ngx_http_script_compile_t));
sc.cf = cf;
sc.source = &src[i].value;
sc.flushes = &conf->flushes;
sc.lengths = &conf->params_len;
sc.values = &conf->params;
if (ngx_http_script_compile (&sc) != NGX_OK) {
return NGX_CONF_ERROR;
}
}
code = ngx_array_push_n (conf->params_len, sizeof (uintptr_t));
if (code == NULL) {
return NGX_CONF_ERROR;
}
*code = (uintptr_t) NULL;
code = ngx_array_push_n (conf->params, sizeof (uintptr_t));
if (code == NULL) {
return NGX_CONF_ERROR;
}
*code = (uintptr_t) NULL;
}
code = ngx_array_push_n (conf->params_len, sizeof (uintptr_t));
if (code == NULL) {
return NGX_CONF_ERROR;
}
*code = (uintptr_t) NULL;
return NGX_CONF_OK;
}
static char *
ngx_http_uwsgi_pass (ngx_conf_t * cf, ngx_command_t * cmd, void *conf)
{
ngx_http_uwsgi_loc_conf_t *uwcf = conf;
ngx_url_t u;
ngx_str_t *value, *url;
ngx_uint_t n;
ngx_http_core_loc_conf_t *clcf;
ngx_http_script_compile_t sc;
if (uwcf->upstream.upstream || uwcf->uwsgi_lengths) {
return "is duplicate";
}
clcf = ngx_http_conf_get_module_loc_conf (cf, ngx_http_core_module);
clcf->handler = ngx_http_uwsgi_handler;
value = cf->args->elts;
url = &value[1];
n = ngx_http_script_variables_count (url);
if (n) {
ngx_memzero (&sc, sizeof (ngx_http_script_compile_t));
sc.cf = cf;
sc.source = url;
sc.lengths = &uwcf->uwsgi_lengths;
sc.values = &uwcf->uwsgi_values;
sc.variables = n;
sc.complete_lengths = 1;
sc.complete_values = 1;
if (ngx_http_script_compile (&sc) != NGX_OK) {
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
ngx_memzero (&u, sizeof (ngx_url_t));
u.url = value[1];
u.no_resolve = 1;
uwcf->upstream.upstream = ngx_http_upstream_add (cf, &u, 0);
if (uwcf->upstream.upstream == NULL) {
return NGX_CONF_ERROR;
}
if (clcf->name.data[clcf->name.len - 1] == '/') {
clcf->auto_redirect = 1;
}
return NGX_CONF_OK;
}
static char *
ngx_http_uwsgi_modifier1 (ngx_conf_t * cf, ngx_command_t * cmd, void *conf)
{
ngx_http_uwsgi_loc_conf_t *uwcf = conf;
ngx_str_t *value;
value = cf->args->elts;
uwcf->modifier1 = (u_char) ngx_atoi (value[1].data, value[1].len);
return NGX_CONF_OK;
}
static char *
ngx_http_uwsgi_modifier2 (ngx_conf_t * cf, ngx_command_t * cmd, void *conf)
{
ngx_http_uwsgi_loc_conf_t *uwcf = conf;
ngx_str_t *value;
value = cf->args->elts;
uwcf->modifier2 = (u_char) ngx_atoi (value[1].data, value[1].len);
return NGX_CONF_OK;
}
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