diff options
Diffstat (limited to 'src/http/modules/perl/ngx_http_perl_module.c')
| -rw-r--r-- | src/http/modules/perl/ngx_http_perl_module.c | 980 |
1 files changed, 980 insertions, 0 deletions
diff --git a/src/http/modules/perl/ngx_http_perl_module.c b/src/http/modules/perl/ngx_http_perl_module.c new file mode 100644 index 000000000..04f778790 --- /dev/null +++ b/src/http/modules/perl/ngx_http_perl_module.c @@ -0,0 +1,980 @@ + +/* + * Copyright (C) Igor Sysoev + */ + + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_http.h> +#include <ngx_http_perl_module.h> + + +typedef struct { + PerlInterpreter **free_perls; + ngx_uint_t interp; + ngx_uint_t nalloc; + ngx_uint_t interp_max; + + PerlInterpreter *perl; + ngx_str_t modules; + ngx_array_t requires; +} ngx_http_perl_main_conf_t; + + +typedef struct { + SV *sub; + ngx_str_t handler; +} ngx_http_perl_loc_conf_t; + + +typedef struct { + SV *sub; + ngx_str_t handler; +} ngx_http_perl_variable_t; + + +static ngx_int_t ngx_http_perl_ssi(ngx_http_request_t *r, + ngx_http_ssi_ctx_t *ssi_ctx, ngx_str_t **params); +static ngx_int_t + ngx_http_perl_get_interpreter(ngx_http_perl_main_conf_t *pmcf, + PerlInterpreter **perl, ngx_log_t *log); +static ngx_inline void + ngx_http_perl_free_interpreter(ngx_http_perl_main_conf_t *pmcf, + PerlInterpreter *perl); +static char *ngx_http_perl_init_interpreter(ngx_conf_t *cf, + ngx_http_perl_main_conf_t *pmcf); +static PerlInterpreter * + ngx_http_perl_create_interpreter(ngx_http_perl_main_conf_t *pmcf, + ngx_log_t *log); +static ngx_int_t ngx_http_perl_call_handler(pTHX_ ngx_http_request_t *r, + SV *sub, ngx_str_t **args, ngx_str_t *handler, ngx_str_t *rv); +static void ngx_http_perl_eval_anon_sub(pTHX_ ngx_str_t *handler, SV **sv); + +static ngx_int_t ngx_http_perl_preconfiguration(ngx_conf_t *cf); +static void *ngx_http_perl_create_main_conf(ngx_conf_t *cf); +static char *ngx_http_perl_init_main_conf(ngx_conf_t *cf, void *conf); +static void *ngx_http_perl_create_loc_conf(ngx_conf_t *cf); +static char *ngx_http_perl_merge_loc_conf(ngx_conf_t *cf, void *parent, + void *child); +static char *ngx_http_perl_require(ngx_conf_t *cf, ngx_command_t *cmd, + void *conf); +static char *ngx_http_perl(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); +static char *ngx_http_perl_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); +static char *ngx_http_perl_interp_max_unsupported(ngx_conf_t *cf, void *post, + void *data); +static void ngx_http_perl_cleanup_perl(void *data); + + +static ngx_conf_post_handler_pt ngx_http_perl_interp_max_p = + ngx_http_perl_interp_max_unsupported; + + +static ngx_command_t ngx_http_perl_commands[] = { + + { ngx_string("perl_modules"), + NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, + ngx_conf_set_str_slot, + NGX_HTTP_MAIN_CONF_OFFSET, + offsetof(ngx_http_perl_main_conf_t, modules), + NULL }, + + { ngx_string("perl_require"), + NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, + ngx_http_perl_require, + NGX_HTTP_MAIN_CONF_OFFSET, + 0, + NULL }, + + { ngx_string("perl_interp_max"), + NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, + ngx_conf_set_num_slot, + NGX_HTTP_MAIN_CONF_OFFSET, + offsetof(ngx_http_perl_main_conf_t, interp_max), + &ngx_http_perl_interp_max_p }, + + { ngx_string("perl"), + NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, + ngx_http_perl, + NGX_HTTP_LOC_CONF_OFFSET, + 0, + NULL }, + + { ngx_string("perl_set"), + NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE2, + ngx_http_perl_set, + NGX_HTTP_LOC_CONF_OFFSET, + 0, + NULL }, + + ngx_null_command +}; + + +static ngx_http_module_t ngx_http_perl_module_ctx = { + ngx_http_perl_preconfiguration, /* preconfiguration */ + NULL, /* postconfiguration */ + + ngx_http_perl_create_main_conf, /* create main configuration */ + ngx_http_perl_init_main_conf, /* init main configuration */ + + NULL, /* create server configuration */ + NULL, /* merge server configuration */ + + ngx_http_perl_create_loc_conf, /* create location configuration */ + ngx_http_perl_merge_loc_conf /* merge location configuration */ +}; + + +ngx_module_t ngx_http_perl_module = { + NGX_MODULE_V1, + &ngx_http_perl_module_ctx, /* module context */ + ngx_http_perl_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 +}; + + +#define NGX_HTTP_PERL_SSI_SUB 0 +#define NGX_HTTP_PERL_SSI_ARG 1 + + +static ngx_http_ssi_param_t ngx_http_perl_ssi_params[] = { + { ngx_string("sub"), NGX_HTTP_PERL_SSI_SUB, 1, 0 }, + { ngx_string("arg"), NGX_HTTP_PERL_SSI_ARG, 0, 1 }, + { ngx_null_string, 0, 0, 0 } +}; + + +static ngx_http_ssi_command_t ngx_http_perl_ssi_command = { + ngx_string("perl"), ngx_http_perl_ssi, ngx_http_perl_ssi_params, 0, 1 +}; + + +static void +ngx_http_perl_xs_init(pTHX) +{ + newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, __FILE__); +} + + +static ngx_int_t +ngx_http_perl_handler(ngx_http_request_t *r) +{ + ngx_int_t rc; + ngx_str_t uri, args; + ngx_http_perl_ctx_t *ctx; + ngx_http_perl_loc_conf_t *plcf; + ngx_http_perl_main_conf_t *pmcf; + + /* TODO: Win32 */ + if (r->zero_in_uri) { + return NGX_HTTP_NOT_FOUND; + } + + ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl handler"); + + /* mod_perl's content handler assumes that content type was already set */ + + if (ngx_http_set_content_type(r) != NGX_OK) { + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); + + if (ctx == NULL) { + ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); + if (ctx == NULL) { + return NGX_ERROR; + } + + ngx_http_set_ctx(r, ctx, ngx_http_perl_module); + } + + pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); + + rc = ngx_http_perl_get_interpreter(pmcf, &ctx->perl, r->connection->log); + + if (rc != NGX_OK) { + return rc; + } + + { + + dTHXa(ctx->perl); + + plcf = ngx_http_get_module_loc_conf(r, ngx_http_perl_module); + + rc = ngx_http_perl_call_handler(aTHX_ r, plcf->sub, NULL, + &plcf->handler, NULL); + + } + + ngx_http_perl_free_interpreter(pmcf, ctx->perl); + + if (rc > 600) { + rc = NGX_OK; + } + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "perl handler done: %i", rc); + + if (ctx->redirect_uri.len) { + uri = ctx->redirect_uri; + args = ctx->redirect_args; + } + + ctx->filename = NULL; + ctx->redirect_uri.len = 0; + + if (uri.len) { + return ngx_http_internal_redirect(r, &uri, &args); + } + + if (rc == NGX_OK || rc == NGX_HTTP_OK) { + return ngx_http_send_special(r, NGX_HTTP_LAST); + } + + return rc; +} + + +static ngx_int_t +ngx_http_perl_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, + uintptr_t data) +{ + ngx_http_perl_variable_t *pv = (ngx_http_perl_variable_t *) data; + + ngx_int_t rc; + ngx_str_t value; + ngx_http_perl_ctx_t *ctx; + ngx_http_perl_main_conf_t *pmcf; + + ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "perl variable handler"); + + ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); + + if (ctx == NULL) { + ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); + if (ctx == NULL) { + return NGX_ERROR; + } + + ngx_http_set_ctx(r, ctx, ngx_http_perl_module); + } + + pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); + + rc = ngx_http_perl_get_interpreter(pmcf, &ctx->perl, r->connection->log); + + if (rc != NGX_OK) { + return rc; + } + + value.data = NULL; + + { + + dTHXa(ctx->perl); + + rc = ngx_http_perl_call_handler(aTHX_ r, pv->sub, NULL, + &pv->handler, &value); + + } + + ngx_http_perl_free_interpreter(pmcf, ctx->perl); + + if (value.data) { + v->len = value.len; + v->valid = 1; + v->no_cachable = 0; + v->not_found = 0; + v->data = value.data; + + } else { + v->not_found = 1; + } + + ctx->filename = NULL; + ctx->redirect_uri.len = 0; + + return rc; +} + + +static ngx_int_t +ngx_http_perl_ssi(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ssi_ctx, + ngx_str_t **params) +{ + SV *sv; + ngx_int_t rc; + ngx_str_t *handler; + ngx_http_perl_ctx_t *ctx; + ngx_http_perl_main_conf_t *pmcf; + + ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "perl ssi handler"); + + pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); + + ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); + + if (ctx == NULL) { + ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); + if (ctx == NULL) { + return NGX_ERROR; + } + + ngx_http_set_ctx(r, ctx, ngx_http_perl_module); + } + + rc = ngx_http_perl_get_interpreter(pmcf, &ctx->perl, r->connection->log); + + if (rc != NGX_OK) { + return rc; + } + + ctx->ssi = ssi_ctx; + + handler = params[NGX_HTTP_PERL_SSI_SUB]; + handler->data[handler->len] = '\0'; + + { + + dTHXa(ctx->perl); + +#if 0 + + ngx_http_perl_eval_anon_sub(aTHX_ handler, &sv); + + if (sv == &PL_sv_undef) { + ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, + "eval_pv(\"%V\") failed", handler); + return NGX_ERROR; + } + + if (sv == NULL) { + sv = newSVpvn((char *) handler->data, handler->len); + } + +#endif + + sv = newSVpvn((char *) handler->data, handler->len); + + rc = ngx_http_perl_call_handler(aTHX_ r, sv, ¶ms[NGX_HTTP_PERL_SSI_ARG], + handler, NULL); + + SvREFCNT_dec(sv); + + } + + ngx_http_perl_free_interpreter(pmcf, ctx->perl); + + ctx->filename = NULL; + ctx->redirect_uri.len = 0; + ctx->ssi = NULL; + + return rc; +} + + +static ngx_int_t +ngx_http_perl_get_interpreter(ngx_http_perl_main_conf_t *pmcf, + PerlInterpreter **perl, ngx_log_t *log) +{ + if (pmcf->interp) { + pmcf->interp--; + + *perl = pmcf->free_perls[pmcf->interp]; + + return NGX_OK; + } + + if (pmcf->nalloc < pmcf->interp_max) { + *perl = ngx_http_perl_create_interpreter(pmcf, log); + + if (*perl) { + return NGX_OK; + } + + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + ngx_log_error(NGX_LOG_ALERT, log, 0, "no free perl interpreter"); + + return NGX_HTTP_SERVICE_UNAVAILABLE; +} + + +static ngx_inline void +ngx_http_perl_free_interpreter(ngx_http_perl_main_conf_t *pmcf, + PerlInterpreter *perl) +{ + pmcf->free_perls[pmcf->interp++] = perl; +} + + +static char * +ngx_http_perl_init_interpreter(ngx_conf_t *cf, ngx_http_perl_main_conf_t *pmcf) +{ + ngx_pool_cleanup_t *cln; + + cln = ngx_pool_cleanup_add(cf->pool, 0); + if (cln == NULL) { + return NGX_CONF_ERROR; + } + +#ifdef NGX_PERL_MODULES + if (pmcf->modules.data == NULL) { + pmcf->modules.data = NGX_PERL_MODULES; + } +#endif + + PERL_SYS_INIT(&ngx_argc, &ngx_argv); + + pmcf->perl = ngx_http_perl_create_interpreter(pmcf, cf->log); + + if (pmcf->perl == NULL) { + PERL_SYS_TERM(); + return NGX_CONF_ERROR; + } + + cln->handler = ngx_http_perl_cleanup_perl; + cln->data = pmcf->perl; + + return NGX_CONF_OK; +} + + +static PerlInterpreter * +ngx_http_perl_create_interpreter(ngx_http_perl_main_conf_t *pmcf, + ngx_log_t *log) +{ + int n; + char *embedding[6]; + char **script; + STRLEN len; + ngx_str_t err; + ngx_uint_t i; + PerlInterpreter *perl; + + ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "create perl interpreter"); + +#if (NGX_HAVE_PERL_CLONE) + + if (pmcf->perl) { + + perl = perl_clone(pmcf->perl, CLONEf_KEEP_PTR_TABLE); + if (perl == NULL) { + ngx_log_error(NGX_LOG_ALERT, log, 0, "perl_clone() failed"); + return NULL; + } + + { + + dTHXa(perl); + + ptr_table_free(PL_ptr_table); + PL_ptr_table = NULL; + + } + + pmcf->nalloc++; + + return perl; + } + +#endif + + perl = perl_alloc(); + if (perl == NULL) { + ngx_log_error(NGX_LOG_ALERT, log, 0, "perl_alloc() failed"); + return NULL; + } + + perl_construct(perl); + + { + + dTHXa(perl); + +#ifdef PERL_EXIT_DESTRUCT_END + PL_exit_flags |= PERL_EXIT_DESTRUCT_END; +#endif + + embedding[0] = ""; + + if (pmcf->modules.data) { + embedding[1] = "-I"; + embedding[2] = (char *) pmcf->modules.data; + n = 3; + + } else { + n = 1; + } + + embedding[n++] = "-Mnginx"; + embedding[n++] = "-e"; + embedding[n++] = "0"; + + n = perl_parse(perl, ngx_http_perl_xs_init, n, embedding, NULL); + + if (n != 0) { + ngx_log_error(NGX_LOG_ALERT, log, 0, "perl_parse() failed: %d", n); + goto fail; + } + + script = pmcf->requires.elts; + for (i = 0; i < pmcf->requires.nelts; i++) { + require_pv(script[i]); + + if (SvTRUE(ERRSV)) { + + err.data = (u_char *) SvPV(ERRSV, len); + for (len--; err.data[len] == LF || err.data[len] == CR; len--) { + /* void */ + } + err.len = len + 1; + + ngx_log_error(NGX_LOG_EMERG, log, 0, + "require_pv(\"%s\") failed: \"%V\"", script[i], &err); + goto fail; + } + } + + } + + pmcf->nalloc++; + + return perl; + +fail: + + (void) perl_destruct(perl); + + perl_free(perl); + + return NULL; +} + + +#if (__INTEL_COMPILER) +/* + * disable 'declaration hides parameter "my_perl"' warning for ENTER and LEAVE + */ +#pragma warning(disable:1599) +#endif + + +static ngx_int_t +ngx_http_perl_call_handler(pTHX_ ngx_http_request_t *r, SV *sub, + ngx_str_t **args, ngx_str_t *handler, ngx_str_t *rv) +{ + SV *sv; + int n, status; + char *line; + STRLEN len, n_a; + ngx_str_t err; + ngx_uint_t i; + + dSP; + + status = 0; + + ENTER; + SAVETMPS; + + PUSHMARK(sp); + + sv = sv_newmortal(); + sv_setref_pv(sv, "nginx", r); + XPUSHs(sv); + + if (args) { + for (i = 0; args[i]; i++) { /* void */ } + + EXTEND(sp, (int) i); + + for (i = 0; args[i]; i++) { + PUSHs(sv_2mortal(newSVpvn((char *) args[i]->data, args[i]->len))); + } + } + + PUTBACK; + + n = call_sv(sub, G_EVAL); + + SPAGAIN; + + if (n) { + if (rv == NULL) { + status = POPi; + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "call_sv: %d", status); + + } else { + line = POPpx; + rv->len = n_a; + + rv->data = ngx_palloc(r->pool, n_a); + if (rv->data == NULL) { + return NGX_ERROR; + } + + ngx_memcpy(rv->data, line, n_a); + } + } + + PUTBACK; + + FREETMPS; + LEAVE; + + /* check $@ */ + + if (SvTRUE(ERRSV)) { + + err.data = (u_char *) SvPV(ERRSV, len); + for (len--; err.data[len] == LF || err.data[len] == CR; len--) { + /* void */ + } + err.len = len + 1; + + ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, + "call_sv(\"%V\") failed: \"%V\"", + handler, &err); + + if (rv) { + return NGX_ERROR; + } + + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + if (n != 1) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, + "call_sv(\"%V\") returned %d results", handler, n); + status = NGX_OK; + } + + if (rv) { + return NGX_OK; + } + + return (ngx_int_t) status; +} + + +#if (__INTEL_COMPILER) +#pragma warning(default:1599) +#endif + + +static void +ngx_http_perl_eval_anon_sub(pTHX_ ngx_str_t *handler, SV **sv) +{ + if (ngx_strncmp(handler->data, "sub ", 4) == 0 + || ngx_strncmp(handler->data, "use ", 4) == 0) + { + *sv = eval_pv((char *) handler->data, FALSE); + + return; + } + + *sv = NULL; +} + + +static void * +ngx_http_perl_create_main_conf(ngx_conf_t *cf) +{ + ngx_http_perl_main_conf_t *pmcf; + + pmcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_perl_main_conf_t)); + if (pmcf == NULL) { + return NGX_CONF_ERROR; + } + + pmcf->interp_max = NGX_CONF_UNSET_UINT; + + if (ngx_array_init(&pmcf->requires, cf->pool, 1, sizeof(u_char *)) + != NGX_OK) + { + return NULL; + } + + return pmcf; +} + + +static char * +ngx_http_perl_init_main_conf(ngx_conf_t *cf, void *conf) +{ + ngx_http_perl_main_conf_t *pmcf = conf; + +#if (NGX_HAVE_PERL_CLONE || NGX_HAVE_PERL_MULTIPLICITY) + ngx_conf_init_unsigned_value(pmcf->interp_max, 10); +#else + ngx_conf_init_unsigned_value(pmcf->interp_max, 1); +#endif + + pmcf->free_perls = ngx_pcalloc(cf->pool, + pmcf->interp_max * sizeof(PerlInterpreter *)); + if (pmcf->free_perls == NULL) { + return NGX_CONF_ERROR; + } + + if (pmcf->perl == NULL) { + if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { + return NGX_CONF_ERROR; + } + } + +#if !(NGX_HAVE_PERL_CLONE) + ngx_http_perl_free_interpreter(pmcf, pmcf->perl); +#endif + + return NGX_CONF_OK; +} + + +static void +ngx_http_perl_cleanup_perl(void *data) +{ + PerlInterpreter *perl = data; + + (void) perl_destruct(perl); + + perl_free(perl); + + PERL_SYS_TERM(); +} + + +static ngx_int_t +ngx_http_perl_preconfiguration(ngx_conf_t *cf) +{ + ngx_int_t rc; + ngx_http_ssi_main_conf_t *smcf; + + smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module); + + rc = ngx_hash_add_key(&smcf->commands, &ngx_http_perl_ssi_command.name, + &ngx_http_perl_ssi_command, NGX_HASH_READONLY_KEY); + + if (rc != NGX_OK) { + if (rc == NGX_BUSY) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "conflicting SSI command \"%V\"", + &ngx_http_perl_ssi_command.name); + } + + return NGX_ERROR; + } + + return NGX_OK; +} + + +static void * +ngx_http_perl_create_loc_conf(ngx_conf_t *cf) +{ + ngx_http_perl_loc_conf_t *plcf; + + plcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_perl_loc_conf_t)); + if (plcf == NULL) { + return NGX_CONF_ERROR; + } + + /* + * set by ngx_pcalloc(): + * + * plcf->handler = { 0, NULL }; + */ + + return plcf; +} + + +static char * +ngx_http_perl_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) +{ + ngx_http_perl_loc_conf_t *prev = parent; + ngx_http_perl_loc_conf_t *conf = child; + + if (conf->sub == NULL) { + conf->sub = prev->sub; + conf->handler = prev->handler; + } + + return NGX_CONF_OK; +} + + +static char * +ngx_http_perl_require(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_http_perl_main_conf_t *pmcf = conf; + + u_char **p; + ngx_str_t *value; + + value = cf->args->elts; + + p = ngx_array_push(&pmcf->requires); + + if (p == NULL) { + return NGX_CONF_ERROR; + } + + *p = value[1].data; + + return NGX_CONF_OK; +} + + +static char * +ngx_http_perl(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_http_perl_loc_conf_t *plcf = conf; + + ngx_str_t *value; + ngx_http_core_loc_conf_t *clcf; + ngx_http_perl_main_conf_t *pmcf; + + value = cf->args->elts; + + if (plcf->handler.data) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "duplicate perl handler \"%V\"", &value[1]); + return NGX_CONF_ERROR; + } + + pmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_perl_module); + + if (pmcf->perl == NULL) { + if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { + return NGX_CONF_ERROR; + } + } + + plcf->handler = value[1]; + + { + + dTHXa(pmcf->perl); + + ngx_http_perl_eval_anon_sub(aTHX_ &value[1], &plcf->sub); + + if (plcf->sub == &PL_sv_undef) { + ngx_conf_log_error(NGX_LOG_ERR, cf, 0, + "eval_pv(\"%V\") failed", &value[1]); + return NGX_CONF_ERROR; + } + + if (plcf->sub == NULL) { + plcf->sub = newSVpvn((char *) value[1].data, value[1].len); + } + + } + + clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); + clcf->handler = ngx_http_perl_handler; + + return NGX_CONF_OK; +} + + +static char * +ngx_http_perl_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_int_t index; + ngx_str_t *value; + ngx_http_variable_t *v; + ngx_http_perl_variable_t *pv; + ngx_http_perl_main_conf_t *pmcf; + + value = cf->args->elts; + + if (value[1].data[0] != '$') { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid variable name \"%V\"", &value[1]); + return NGX_CONF_ERROR; + } + + value[1].len--; + value[1].data++; + + v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGABLE); + if (v == NULL) { + return NGX_CONF_ERROR; + } + + pv = ngx_palloc(cf->pool, sizeof(ngx_http_perl_variable_t)); + if (pv == NULL) { + return NGX_CONF_ERROR; + } + + index = ngx_http_get_variable_index(cf, &value[1]); + if (index == NGX_ERROR) { + return NGX_CONF_ERROR; + } + + pmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_perl_module); + + if (pmcf->perl == NULL) { + if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { + return NGX_CONF_ERROR; + } + } + + pv->handler = value[2]; + + { + + dTHXa(pmcf->perl); + + ngx_http_perl_eval_anon_sub(aTHX_ &value[2], &pv->sub); + + if (pv->sub == &PL_sv_undef) { + ngx_conf_log_error(NGX_LOG_ERR, cf, 0, + "eval_pv(\"%V\") failed", &value[2]); + return NGX_CONF_ERROR; + } + + if (pv->sub == NULL) { + pv->sub = newSVpvn((char *) value[2].data, value[2].len); + } + + } + + v->handler = ngx_http_perl_variable; + v->data = (uintptr_t) pv; + + return NGX_CONF_OK; +} + + +static char * +ngx_http_perl_interp_max_unsupported(ngx_conf_t *cf, void *post, void *data) +{ +#if (NGX_HAVE_PERL_CLONE || NGX_HAVE_PERL_MULTIPLICITY) + + return NGX_CONF_OK; + +#else + + return "to use perl_interp_max you have to build perl with " + "-Dusemultiplicity or -Dusethreads options"; + +#endif +} |