nginx/src/http/modules/perl/nginx.xs
Igor Sysoev 6d16e1e1df nginx-0.3.36-RELEASE import
*) Feature: the ngx_http_addition_filter_module.

    *) Feature: the "proxy_pass" and "fastcgi_pass" directives may be used
       inside the "if" block.

    *) Feature: the "proxy_ignore_client_abort" and
       "fastcgi_ignore_client_abort" directives.

    *) Feature: the "$request_completion" variable.

    *) Feature: the ngx_http_perl_module supports the $r->request_method
       and $r->remote_addr.

    *) Feature: the ngx_http_ssi_module supports the "elif" command.

    *) Bugfix: the "\/" string in the expression of the "if" command of the
       ngx_http_ssi_module was treated incorrectly.

    *) Bugfix: in the regular expressions in the "if" command of the
       ngx_http_ssi_module.

    *) Bugfix: if the relative path was specified in the
       "client_body_temp_path", "proxy_temp_path", "fastcgi_temp_path", and
       "perl_modules" directives, then the directory was used relatively to
       a current path but not to a server prefix.
2006-04-05 13:40:54 +00:00

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/*
* Copyright (C) Igor Sysoev
*/
#define PERL_NO_GET_CONTEXT
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>
#include <ngx_http_perl_module.h>
#include "XSUB.h"
static ngx_int_t
ngx_http_perl_sv2str(pTHX_ ngx_http_request_t *r, ngx_str_t *s, SV *sv)
{
u_char *p;
STRLEN len;
if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) {
sv = SvRV(sv);
}
p = (u_char *) SvPV(sv, len);
s->len = len;
if (SvREADONLY(sv)) {
s->data = p;
return NGX_OK;
}
s->data = ngx_palloc(r->pool, len);
if (s->data == NULL) {
return NGX_ERROR;
}
ngx_memcpy(s->data, p, len);
return NGX_OK;
}
static ngx_int_t
ngx_http_perl_output(ngx_http_request_t *r, ngx_buf_t *b)
{
ngx_chain_t out;
#if (NGX_HTTP_SSI)
ngx_chain_t *cl;
ngx_http_perl_ctx_t *ctx;
ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module);
if (ctx->ssi) {
cl = ngx_alloc_chain_link(r->pool);
if (cl == NULL) {
return NGX_ERROR;
}
cl->buf = b;
cl->next = NULL;
*ctx->ssi->last_out = cl;
ctx->ssi->last_out = &cl->next;
return NGX_OK;
}
#endif
out.buf = b;
out.next = NULL;
return ngx_http_output_filter(r, &out);
}
MODULE = nginx PACKAGE = nginx
int
send_http_header(r, ...)
nginx r
PREINIT:
SV *sv;
CODE:
if (r->headers_out.status == 0) {
r->headers_out.status = NGX_HTTP_OK;
}
if (items != 1) {
sv = ST(1);
if (ngx_http_perl_sv2str(aTHX_ r, &r->headers_out.content_type, sv)
!= NGX_OK)
{
RETVAL = NGX_ERROR;
goto done;
}
} else {
if (r->headers_out.content_type.len == 0) {
if (ngx_http_set_content_type(r) != NGX_OK) {
RETVAL = NGX_ERROR;
goto done;
}
}
}
RETVAL = ngx_http_send_header(r);
done:
OUTPUT:
RETVAL
int
header_only(r)
nginx r
CODE:
RETVAL = r->header_only;
OUTPUT:
RETVAL
# The returning "char *" is more quickly than creating SV, because SV returned
# from XS is never used as permanent storage. Even in simple case:
# "$uri = $r->uri" the SV returned by $r->uri is copied to $uri's SV.
char *
uri(r, ...)
nginx r
CODE:
if (items != 1) {
croak("$r->uri(text) is not implemented");
}
RETVAL = ngx_palloc(r->pool, r->uri.len + 1);
if (RETVAL == NULL) {
XSRETURN_UNDEF;
}
ngx_cpystrn((u_char *) RETVAL, r->uri.data, r->uri.len + 1);
OUTPUT:
RETVAL
char *
args(r, ...)
nginx r
CODE:
if (items != 1) {
croak("$r->args(text) is not implemented");
}
RETVAL = ngx_palloc(r->pool, r->args.len + 1);
if (RETVAL == NULL) {
XSRETURN_UNDEF;
}
ngx_cpystrn((u_char *) RETVAL, r->args.data, r->args.len + 1);
OUTPUT:
RETVAL
char *
request_method(r)
nginx r
CODE:
RETVAL = ngx_palloc(r->pool, r->method_name.len + 1);
if (RETVAL == NULL) {
XSRETURN_UNDEF;
}
ngx_cpystrn((u_char *) RETVAL, r->method_name.data, r->method_name.len + 1);
OUTPUT:
RETVAL
char *
remote_addr(r)
nginx r
CODE:
RETVAL = (char *) r->connection->addr_text.data;
OUTPUT:
RETVAL
char *
header_in(r, key)
nginx r
SV *key
PREINIT:
u_char *p;
STRLEN len;
ngx_uint_t i;
ngx_list_part_t *part;
ngx_table_elt_t *header;
CODE:
if (SvROK(key) && SvTYPE(SvRV(key)) == SVt_PV) {
key = SvRV(key);
}
p = (u_char *) SvPV(key, len);
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 (len != header[i].key.len
|| ngx_strcasecmp(p, header[i].key.data) != 0)
{
continue;
}
RETVAL = (char *) header[i].value.data;
goto done;
}
XSRETURN_UNDEF;
done:
OUTPUT:
RETVAL
int
header_out(r, key, value)
nginx r
SV *key
SV *value
PREINIT:
ngx_table_elt_t *header;
CODE:
header = ngx_list_push(&r->headers_out.headers);
if (header == NULL) {
RETVAL = NGX_ERROR;
goto done;
}
header->hash = 1;
if (ngx_http_perl_sv2str(aTHX_ r, &header->key, key) != NGX_OK) {
RETVAL = NGX_ERROR;
goto done;
}
if (ngx_http_perl_sv2str(aTHX_ r, &header->value, value) != NGX_OK) {
RETVAL = NGX_ERROR;
goto done;
}
if (header->key.len == sizeof("Content-Length") - 1
&& ngx_strncasecmp(header->key.data, "Content-Length",
sizeof("Content-Length") - 1) == 0
&& SvIOK(value))
{
r->headers_out.content_length_n = (ssize_t) SvIV(value);;
r->headers_out.content_length = header;
}
RETVAL = NGX_OK;
done:
OUTPUT:
RETVAL
char *
filename(r)
nginx r
PREINIT:
ngx_str_t path;
ngx_http_perl_ctx_t *ctx;
CODE:
ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module);
if (ctx->filename) {
goto done;
}
if (ngx_http_map_uri_to_path(r, &path, 0) == NULL) {
XSRETURN_UNDEF;
}
ctx->filename = (char *) path.data;
sv_setpv(PL_statname, ctx->filename);
done:
RETVAL = ctx->filename;
OUTPUT:
RETVAL
int
print(r, ...)
nginx r
PREINIT:
SV *sv;
int i;
u_char *p;
size_t size;
STRLEN len;
ngx_buf_t *b;
CODE:
RETVAL = NGX_OK;
if (items == 2) {
/*
* do zero copy for prolate single read-only SV:
* $r->print("some text\n");
*/
sv = ST(1);
if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) {
sv = SvRV(sv);
}
if (SvREADONLY(sv)) {
p = (u_char *) SvPV(sv, len);
if (len == 0) {
goto done;
}
b = ngx_calloc_buf(r->pool);
if (b == NULL) {
RETVAL = NGX_ERROR;
goto done;
}
b->memory = 1;
b->pos = p;
b->last = p + len;
b->start = p;
b->end = b->last;
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"$r->print: read-only SV: %z", len);
goto out;
}
}
size = 0;
for (i = 1; i < items; i++) {
sv = ST(i);
if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) {
sv = SvRV(sv);
}
(void) SvPV(sv, len);
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"$r->print: copy SV: %z", len);
size += len;
}
if (size == 0) {
goto done;
}
b = ngx_create_temp_buf(r->pool, size);
if (b == NULL) {
RETVAL = NGX_ERROR;
goto done;
}
for (i = 1; i < items; i++) {
sv = ST(i);
if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) {
sv = SvRV(sv);
}
p = (u_char *) SvPV(sv, len);
b->last = ngx_cpymem(b->last, p, len);
}
out:
RETVAL = ngx_http_perl_output(r, b);
done:
OUTPUT:
RETVAL
int
sendfile(r, filename, offset = -1, bytes = 0)
nginx r
char *filename
int offset;
size_t bytes;
PREINIT:
ngx_fd_t fd;
ngx_buf_t *b;
ngx_file_info_t fi;
ngx_pool_cleanup_t *cln;
ngx_pool_cleanup_file_t *clnf;
CODE:
if (filename == NULL) {
croak("sendfile(): NULL filename");
}
b = ngx_calloc_buf(r->pool);
if (b == NULL) {
RETVAL = NGX_ERROR;
goto done;
}
b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
if (b->file == NULL) {
RETVAL = NGX_ERROR;
goto done;
}
cln = ngx_pool_cleanup_add(r->pool, sizeof(ngx_pool_cleanup_file_t));
if (cln == NULL) {
RETVAL = NGX_ERROR;
goto done;
}
fd = ngx_open_file((u_char *) filename, NGX_FILE_RDONLY, NGX_FILE_OPEN);
if (fd == NGX_INVALID_FILE) {
ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
ngx_open_file_n " \"%s\" failed", filename);
RETVAL = NGX_ERROR;
goto done;
}
if (offset == -1) {
offset = 0;
}
if (bytes == 0) {
if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
ngx_fd_info_n " \"%s\" failed", filename);
if (ngx_close_file(fd) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
ngx_close_file_n " \"%s\" failed", filename);
}
RETVAL = NGX_ERROR;
goto done;
}
bytes = ngx_file_size(&fi) - offset;
}
cln->handler = ngx_pool_cleanup_file;
clnf = cln->data;
clnf->fd = fd;
clnf->name = (u_char *) "";
clnf->log = r->pool->log;
b->in_file = 1;
b->file_pos = offset;
b->file_last = offset + bytes;
b->file->fd = fd;
b->file->log = r->connection->log;
RETVAL = ngx_http_perl_output(r, b);
done:
OUTPUT:
RETVAL
int
rflush(r)
nginx r
PREINIT:
ngx_buf_t *b;
CODE:
b = ngx_calloc_buf(r->pool);
if (b == NULL) {
RETVAL = NGX_ERROR;
goto done;
}
b->flush = 1;
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "$r->rflush");
RETVAL = ngx_http_perl_output(r, b);
done:
OUTPUT:
RETVAL
void
internal_redirect(r, uri)
nginx r
SV *uri
PREINIT:
ngx_uint_t i;
ngx_http_perl_ctx_t *ctx;
CODE:
ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module);
if (ngx_http_perl_sv2str(aTHX_ r, &ctx->redirect_uri, uri) != NGX_OK) {
XSRETURN_EMPTY;
}
for (i = 0; i < ctx->redirect_uri.len; i++) {
if (ctx->redirect_uri.data[i] == '?') {
ctx->redirect_args.len = ctx->redirect_uri.len - (i + 1);
ctx->redirect_args.data = &ctx->redirect_uri.data[i + 1];
ctx->redirect_uri.len = i;
XSRETURN_EMPTY;
}
}
char *
unescape(r, text, type = 0)
nginx r
SV *text
int type
PREINIT:
u_char *p, *dst, *src;
STRLEN n;
CODE:
src = (u_char *) SvPV(text, n);
p = ngx_palloc(r->pool, n + 1);
if (p == NULL) {
XSRETURN_UNDEF;
}
dst = p;
ngx_unescape_uri(&dst, &src, n, (ngx_uint_t) type);
*dst = '\0';
RETVAL = (char *) p;
OUTPUT:
RETVAL