Mercurial > hg > nginx
view src/http/modules/perl/nginx.xs @ 4437:3a1507f48686 stable-1.0
Merge of r4372, r4373, r4374:
SCGI fixes:
*) Fixed incorrect use of r->http_version in scgi module.
The r->http_version is a version of client's request, and modules
must not set it unless they are really willing to downgrade protocol
version used for a response (i.e. to HTTP/0.9 if no response headers
are available). In neither case r->http_version may be upgraded.
The former code downgraded response from HTTP/1.1 to HTTP/1.0 for no
reason, causing various problems (see ticket #66). It was also
possible that HTTP/0.9 requests were upgraded to HTTP/1.0.
*) Removed duplicate function declaration.
*) Removed error if there is no Status header.
The SCGI specification doesn't specify format of the response, and
assuming CGI specs should be used there is no reason to complain.
RFC 3875 explicitly states that "A Status header field is optional,
and status 200 'OK' is assumed if it is omitted".
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sun, 05 Feb 2012 13:53:50 +0000 |
parents | edc216059175 |
children | 4919fb357a5d |
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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" #define ngx_http_perl_set_request(r) \ r = INT2PTR(ngx_http_request_t *, SvIV((SV *) SvRV(ST(0)))) #define ngx_http_perl_set_targ(p, len) \ \ SvUPGRADE(TARG, SVt_PV); \ SvPOK_on(TARG); \ sv_setpvn(TARG, (char *) p, len) 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) && SvPOK(sv)) { s->data = p; ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl sv2str: %08XD \"%V\"", sv->sv_flags, s); return NGX_OK; } s->data = ngx_pnalloc(r->pool, len); if (s->data == NULL) { return NGX_ERROR; } ngx_memcpy(s->data, p, len); ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl sv2str: %08XD \"%V\"", sv->sv_flags, s); 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 void status(r, code) CODE: ngx_http_request_t *r; ngx_http_perl_set_request(r); r->headers_out.status = SvIV(ST(1)); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl status: %d", r->headers_out.status); XSRETURN_UNDEF; void send_http_header(r, ...) CODE: ngx_http_request_t *r; SV *sv; ngx_http_perl_set_request(r); 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) { XSRETURN_EMPTY; } r->headers_out.content_type_len = r->headers_out.content_type.len; } else { if (ngx_http_set_content_type(r) != NGX_OK) { XSRETURN_EMPTY; } } (void) ngx_http_send_header(r); void header_only(r) CODE: dXSTARG; ngx_http_request_t *r; ngx_http_perl_set_request(r); sv_upgrade(TARG, SVt_IV); sv_setiv(TARG, r->header_only); ST(0) = TARG; void uri(r) CODE: dXSTARG; ngx_http_request_t *r; ngx_http_perl_set_request(r); ngx_http_perl_set_targ(r->uri.data, r->uri.len); ST(0) = TARG; void args(r) CODE: dXSTARG; ngx_http_request_t *r; ngx_http_perl_set_request(r); ngx_http_perl_set_targ(r->args.data, r->args.len); ST(0) = TARG; void request_method(r) CODE: dXSTARG; ngx_http_request_t *r; ngx_http_perl_set_request(r); ngx_http_perl_set_targ(r->method_name.data, r->method_name.len); ST(0) = TARG; void remote_addr(r) CODE: dXSTARG; ngx_http_request_t *r; ngx_http_perl_set_request(r); ngx_http_perl_set_targ(r->connection->addr_text.data, r->connection->addr_text.len); ST(0) = TARG; void header_in(r, key) CODE: dXSTARG; ngx_http_request_t *r; SV *key; u_char *p, *lowcase_key, *cookie; STRLEN len; ssize_t size; ngx_uint_t i, n, hash; ngx_list_part_t *part; ngx_table_elt_t *h, **ph; ngx_http_header_t *hh; ngx_http_core_main_conf_t *cmcf; ngx_http_perl_set_request(r); key = ST(1); if (SvROK(key) && SvTYPE(SvRV(key)) == SVt_PV) { key = SvRV(key); } p = (u_char *) SvPV(key, len); /* look up hashed headers */ lowcase_key = ngx_pnalloc(r->pool, len); if (lowcase_key == NULL) { XSRETURN_UNDEF; } hash = ngx_hash_strlow(lowcase_key, p, len); cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); hh = ngx_hash_find(&cmcf->headers_in_hash, hash, lowcase_key, len); if (hh) { if (hh->offset) { ph = (ngx_table_elt_t **) ((char *) &r->headers_in + hh->offset); if (*ph) { ngx_http_perl_set_targ((*ph)->value.data, (*ph)->value.len); goto done; } XSRETURN_UNDEF; } /* Cookie */ n = r->headers_in.cookies.nelts; if (n == 0) { XSRETURN_UNDEF; } ph = r->headers_in.cookies.elts; if (n == 1) { ngx_http_perl_set_targ((*ph)->value.data, (*ph)->value.len); goto done; } size = - (ssize_t) (sizeof("; ") - 1); for (i = 0; i < n; i++) { size += ph[i]->value.len + sizeof("; ") - 1; } cookie = ngx_pnalloc(r->pool, size); if (cookie == NULL) { XSRETURN_UNDEF; } p = cookie; for (i = 0; /* void */ ; i++) { p = ngx_copy(p, ph[i]->value.data, ph[i]->value.len); if (i == n - 1) { break; } *p++ = ';'; *p++ = ' '; } ngx_http_perl_set_targ(cookie, size); goto done; } /* iterate over all headers */ part = &r->headers_in.headers.part; h = part->elts; for (i = 0; /* void */ ; i++) { if (i >= part->nelts) { if (part->next == NULL) { break; } part = part->next; h = part->elts; i = 0; } if (len != h[i].key.len || ngx_strcasecmp(p, h[i].key.data) != 0) { continue; } ngx_http_perl_set_targ(h[i].value.data, h[i].value.len); goto done; } XSRETURN_UNDEF; done: ST(0) = TARG; void has_request_body(r, next) CODE: dXSTARG; ngx_http_request_t *r; ngx_http_perl_ctx_t *ctx; ngx_http_perl_set_request(r); if (r->headers_in.content_length_n <= 0) { XSRETURN_UNDEF; } ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); ctx->next = SvRV(ST(1)); r->request_body_in_single_buf = 1; r->request_body_in_persistent_file = 1; r->request_body_in_clean_file = 1; if (r->request_body_in_file_only) { r->request_body_file_log_level = 0; } ngx_http_read_client_request_body(r, ngx_http_perl_handle_request); sv_upgrade(TARG, SVt_IV); sv_setiv(TARG, 1); ST(0) = TARG; void request_body(r) CODE: dXSTARG; ngx_http_request_t *r; size_t len; ngx_http_perl_set_request(r); if (r->request_body == NULL || r->request_body->temp_file || r->request_body->bufs == NULL) { XSRETURN_UNDEF; } len = r->request_body->bufs->buf->last - r->request_body->bufs->buf->pos; if (len == 0) { XSRETURN_UNDEF; } ngx_http_perl_set_targ(r->request_body->bufs->buf->pos, len); ST(0) = TARG; void request_body_file(r) CODE: dXSTARG; ngx_http_request_t *r; ngx_http_perl_set_request(r); if (r->request_body == NULL || r->request_body->temp_file == NULL) { XSRETURN_UNDEF; } ngx_http_perl_set_targ(r->request_body->temp_file->file.name.data, r->request_body->temp_file->file.name.len); ST(0) = TARG; void discard_request_body(r) CODE: ngx_http_request_t *r; ngx_http_perl_set_request(r); ngx_http_discard_request_body(r); void header_out(r, key, value) CODE: ngx_http_request_t *r; SV *key; SV *value; ngx_table_elt_t *header; ngx_http_perl_set_request(r); key = ST(1); value = ST(2); header = ngx_list_push(&r->headers_out.headers); if (header == NULL) { XSRETURN_EMPTY; } header->hash = 1; if (ngx_http_perl_sv2str(aTHX_ r, &header->key, key) != NGX_OK) { XSRETURN_EMPTY; } if (ngx_http_perl_sv2str(aTHX_ r, &header->value, value) != NGX_OK) { XSRETURN_EMPTY; } if (header->key.len == sizeof("Content-Length") - 1 && ngx_strncasecmp(header->key.data, (u_char *) "Content-Length", sizeof("Content-Length") - 1) == 0) { r->headers_out.content_length_n = (off_t) SvIV(value); r->headers_out.content_length = header; } if (header->key.len == sizeof("Content-Encoding") - 1 && ngx_strncasecmp(header->key.data, "Content-Encoding", sizeof("Content-Encoding") - 1) == 0) { r->headers_out.content_encoding = header; } void filename(r) CODE: dXSTARG; size_t root; ngx_http_request_t *r; ngx_http_perl_ctx_t *ctx; ngx_http_perl_set_request(r); ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); if (ctx->filename.data) { goto done; } if (ngx_http_map_uri_to_path(r, &ctx->filename, &root, 0) == NULL) { XSRETURN_UNDEF; } ctx->filename.len--; sv_setpv(PL_statname, (char *) ctx->filename.data); done: ngx_http_perl_set_targ(ctx->filename.data, ctx->filename.len); ST(0) = TARG; void print(r, ...) CODE: ngx_http_request_t *r; SV *sv; int i; u_char *p; size_t size; STRLEN len; ngx_buf_t *b; ngx_http_perl_set_request(r); if (items == 2) { /* * do zero copy for prolate single read-only SV: * $r->print("some text\n"); */ sv = ST(1); if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PV) { sv = SvRV(sv); } if (SvREADONLY(sv) && SvPOK(sv)) { p = (u_char *) SvPV(sv, len); if (len == 0) { XSRETURN_EMPTY; } b = ngx_calloc_buf(r->pool); if (b == NULL) { XSRETURN_EMPTY; } b->memory = 1; b->pos = p; b->last = p + len; b->start = p; b->end = b->last; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "$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) { XSRETURN_EMPTY; } b = ngx_create_temp_buf(r->pool, size); if (b == NULL) { XSRETURN_EMPTY; } 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: (void) ngx_http_perl_output(r, b); void sendfile(r, filename, offset = -1, bytes = 0) CODE: ngx_http_request_t *r; char *filename; off_t offset; size_t bytes; ngx_str_t path; ngx_buf_t *b; ngx_open_file_info_t of; ngx_http_core_loc_conf_t *clcf; ngx_http_perl_set_request(r); filename = SvPV_nolen(ST(1)); if (filename == NULL) { croak("sendfile(): NULL filename"); } offset = items < 3 ? -1 : SvIV(ST(2)); bytes = items < 4 ? 0 : SvIV(ST(3)); b = ngx_calloc_buf(r->pool); if (b == NULL) { XSRETURN_EMPTY; } b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); if (b->file == NULL) { XSRETURN_EMPTY; } path.len = ngx_strlen(filename); path.data = ngx_pnalloc(r->pool, path.len + 1); if (path.data == NULL) { XSRETURN_EMPTY; } (void) ngx_cpystrn(path.data, (u_char *) filename, path.len + 1); clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); ngx_memzero(&of, sizeof(ngx_open_file_info_t)); of.read_ahead = clcf->read_ahead; of.directio = clcf->directio; of.valid = clcf->open_file_cache_valid; of.min_uses = clcf->open_file_cache_min_uses; of.errors = clcf->open_file_cache_errors; of.events = clcf->open_file_cache_events; if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) != NGX_OK) { if (of.err == 0) { XSRETURN_EMPTY; } ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, "%s \"%s\" failed", of.failed, filename); XSRETURN_EMPTY; } if (offset == -1) { offset = 0; } if (bytes == 0) { bytes = of.size - offset; } b->in_file = 1; b->file_pos = offset; b->file_last = offset + bytes; b->file->fd = of.fd; b->file->log = r->connection->log; b->file->directio = of.is_directio; (void) ngx_http_perl_output(r, b); void flush(r) CODE: ngx_http_request_t *r; ngx_buf_t *b; ngx_http_perl_set_request(r); b = ngx_calloc_buf(r->pool); if (b == NULL) { XSRETURN_EMPTY; } b->flush = 1; ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "$r->flush"); (void) ngx_http_perl_output(r, b); XSRETURN_EMPTY; void internal_redirect(r, uri) CODE: ngx_http_request_t *r; SV *uri; ngx_uint_t i; ngx_http_perl_ctx_t *ctx; ngx_http_perl_set_request(r); uri = ST(1); 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; } } void allow_ranges(r) CODE: ngx_http_request_t *r; ngx_http_perl_set_request(r); r->allow_ranges = 1; void unescape(r, text, type = 0) CODE: dXSTARG; ngx_http_request_t *r; SV *text; int type; u_char *p, *dst, *src; STRLEN len; ngx_http_perl_set_request(r); text = ST(1); src = (u_char *) SvPV(text, len); p = ngx_pnalloc(r->pool, len + 1); if (p == NULL) { XSRETURN_UNDEF; } dst = p; type = items < 3 ? 0 : SvIV(ST(2)); ngx_unescape_uri(&dst, &src, len, (ngx_uint_t) type); *dst = '\0'; ngx_http_perl_set_targ(p, dst - p); ST(0) = TARG; void variable(r, name, value = NULL) CODE: dXSTARG; ngx_http_request_t *r; SV *name, *value; u_char *p, *lowcase; STRLEN len; ngx_str_t var, val; ngx_uint_t i, hash; ngx_http_perl_var_t *v; ngx_http_perl_ctx_t *ctx; ngx_http_variable_value_t *vv; ngx_http_perl_set_request(r); name = ST(1); if (SvROK(name) && SvTYPE(SvRV(name)) == SVt_PV) { name = SvRV(name); } if (items == 2) { value = NULL; } else { value = ST(2); if (SvROK(value) && SvTYPE(SvRV(value)) == SVt_PV) { value = SvRV(value); } if (ngx_http_perl_sv2str(aTHX_ r, &val, value) != NGX_OK) { XSRETURN_UNDEF; } } p = (u_char *) SvPV(name, len); lowcase = ngx_pnalloc(r->pool, len); if (lowcase == NULL) { XSRETURN_UNDEF; } hash = ngx_hash_strlow(lowcase, p, len); var.len = len; var.data = lowcase; #if (NGX_DEBUG) if (value) { ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl variable: \"%V\"=\"%V\"", &var, &val); } else { ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl variable: \"%V\"", &var); } #endif vv = ngx_http_get_variable(r, &var, hash); if (vv == NULL) { XSRETURN_UNDEF; } if (vv->not_found) { ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); if (ctx->variables) { v = ctx->variables->elts; for (i = 0; i < ctx->variables->nelts; i++) { if (hash != v[i].hash || len != v[i].name.len || ngx_strncmp(lowcase, v[i].name.data, len) != 0) { continue; } if (value) { v[i].value = val; XSRETURN_UNDEF; } ngx_http_perl_set_targ(v[i].value.data, v[i].value.len); goto done; } } if (value) { if (ctx->variables == NULL) { ctx->variables = ngx_array_create(r->pool, 1, sizeof(ngx_http_perl_var_t)); if (ctx->variables == NULL) { XSRETURN_UNDEF; } } v = ngx_array_push(ctx->variables); if (v == NULL) { XSRETURN_UNDEF; } v->hash = hash; v->name.len = len; v->name.data = lowcase; v->value = val; XSRETURN_UNDEF; } XSRETURN_UNDEF; } if (value) { vv->len = val.len; vv->valid = 1; vv->no_cacheable = 0; vv->not_found = 0; vv->data = val.data; XSRETURN_UNDEF; } ngx_http_perl_set_targ(vv->data, vv->len); done: ST(0) = TARG; void sleep(r, sleep, next) CODE: ngx_http_request_t *r; ngx_msec_t sleep; ngx_http_perl_ctx_t *ctx; ngx_http_perl_set_request(r); sleep = (ngx_msec_t) SvIV(ST(1)); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl sleep: %M", sleep); ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); ctx->next = SvRV(ST(2)); ngx_add_timer(r->connection->write, sleep); r->write_event_handler = ngx_http_perl_sleep_handler; r->main->count++; void log_error(r, err, msg) CODE: ngx_http_request_t *r; SV *err, *msg; u_char *p; STRLEN len; ngx_err_t e; ngx_http_perl_set_request(r); err = ST(1); if (SvROK(err) && SvTYPE(SvRV(err)) == SVt_PV) { err = SvRV(err); } e = SvIV(err); msg = ST(2); if (SvROK(msg) && SvTYPE(SvRV(msg)) == SVt_PV) { msg = SvRV(msg); } p = (u_char *) SvPV(msg, len); ngx_log_error(NGX_LOG_ERR, r->connection->log, e, "perl: %s", p);