Mercurial > hg > nginx-quic
view src/imap/ngx_imap_core_module.c @ 1052:81da6273fb04
style fix
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 18 Jan 2007 20:25:11 +0000 |
parents | a0310ac2814f |
children |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #include <ngx_imap.h> static void *ngx_imap_core_create_main_conf(ngx_conf_t *cf); static void *ngx_imap_core_create_srv_conf(ngx_conf_t *cf); static char *ngx_imap_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child); static char *ngx_imap_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_imap_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_imap_core_capability(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_conf_enum_t ngx_imap_core_procotol[] = { { ngx_string("pop3"), NGX_IMAP_POP3_PROTOCOL }, { ngx_string("imap"), NGX_IMAP_IMAP_PROTOCOL }, { ngx_null_string, 0 } }; static ngx_str_t ngx_pop3_default_capabilities[] = { ngx_string("TOP"), ngx_string("USER"), ngx_string("UIDL"), ngx_null_string }; static ngx_str_t ngx_imap_default_capabilities[] = { ngx_string("IMAP4"), ngx_string("IMAP4rev1"), ngx_string("UIDPLUS"), ngx_null_string }; static ngx_conf_bitmask_t ngx_imap_auth_methods[] = { { ngx_string("plain"), NGX_IMAP_AUTH_PLAIN_ENABLED }, { ngx_string("apop"), NGX_IMAP_AUTH_APOP_ENABLED }, { ngx_string("cram-md5"), NGX_IMAP_AUTH_CRAM_MD5_ENABLED }, { ngx_null_string, 0 } }; static ngx_str_t ngx_pop3_auth_plain_capability = ngx_string("+OK methods supported:" CRLF "LOGIN" CRLF "PLAIN" CRLF "." CRLF); static ngx_str_t ngx_pop3_auth_cram_md5_capability = ngx_string("+OK methods supported:" CRLF "LOGIN" CRLF "PLAIN" CRLF "CRAM-MD5" CRLF "." CRLF); static ngx_command_t ngx_imap_core_commands[] = { { ngx_string("server"), NGX_IMAP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, ngx_imap_core_server, 0, 0, NULL }, { ngx_string("listen"), NGX_IMAP_SRV_CONF|NGX_CONF_TAKE12, ngx_imap_core_listen, 0, 0, NULL }, { ngx_string("protocol"), NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_enum_slot, NGX_IMAP_SRV_CONF_OFFSET, offsetof(ngx_imap_core_srv_conf_t, protocol), &ngx_imap_core_procotol }, { ngx_string("imap_client_buffer"), NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_IMAP_SRV_CONF_OFFSET, offsetof(ngx_imap_core_srv_conf_t, imap_client_buffer_size), NULL }, { ngx_string("so_keepalive"), NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_IMAP_SRV_CONF_OFFSET, offsetof(ngx_imap_core_srv_conf_t, so_keepalive), NULL }, { ngx_string("timeout"), NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_IMAP_SRV_CONF_OFFSET, offsetof(ngx_imap_core_srv_conf_t, timeout), NULL }, { ngx_string("pop3_capabilities"), NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_1MORE, ngx_imap_core_capability, NGX_IMAP_SRV_CONF_OFFSET, offsetof(ngx_imap_core_srv_conf_t, pop3_capabilities), NULL }, { ngx_string("imap_capabilities"), NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_1MORE, ngx_imap_core_capability, NGX_IMAP_SRV_CONF_OFFSET, offsetof(ngx_imap_core_srv_conf_t, imap_capabilities), NULL }, { ngx_string("server_name"), NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_IMAP_SRV_CONF_OFFSET, offsetof(ngx_imap_core_srv_conf_t, server_name), NULL }, { ngx_string("auth"), NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_IMAP_SRV_CONF_OFFSET, offsetof(ngx_imap_core_srv_conf_t, auth_methods), &ngx_imap_auth_methods }, ngx_null_command }; static ngx_imap_module_t ngx_imap_core_module_ctx = { ngx_imap_core_create_main_conf, /* create main configuration */ NULL, /* init main configuration */ ngx_imap_core_create_srv_conf, /* create server configuration */ ngx_imap_core_merge_srv_conf /* merge server configuration */ }; ngx_module_t ngx_imap_core_module = { NGX_MODULE_V1, &ngx_imap_core_module_ctx, /* module context */ ngx_imap_core_commands, /* module directives */ NGX_IMAP_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 void * ngx_imap_core_create_main_conf(ngx_conf_t *cf) { ngx_imap_core_main_conf_t *cmcf; cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_core_main_conf_t)); if (cmcf == NULL) { return NGX_CONF_ERROR; } if (ngx_array_init(&cmcf->servers, cf->pool, 4, sizeof(ngx_imap_core_srv_conf_t *)) != NGX_OK) { return NGX_CONF_ERROR; } if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_imap_listen_t)) != NGX_OK) { return NGX_CONF_ERROR; } return cmcf; } static void * ngx_imap_core_create_srv_conf(ngx_conf_t *cf) { ngx_imap_core_srv_conf_t *cscf; cscf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_core_srv_conf_t)); if (cscf == NULL) { return NULL; } cscf->imap_client_buffer_size = NGX_CONF_UNSET_SIZE; cscf->protocol = NGX_CONF_UNSET_UINT; cscf->timeout = NGX_CONF_UNSET_MSEC; cscf->so_keepalive = NGX_CONF_UNSET; if (ngx_array_init(&cscf->pop3_capabilities, cf->pool, 4, sizeof(ngx_str_t)) != NGX_OK) { return NULL; } if (ngx_array_init(&cscf->imap_capabilities, cf->pool, 4, sizeof(ngx_str_t)) != NGX_OK) { return NULL; } return cscf; } static char * ngx_imap_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_imap_core_srv_conf_t *prev = parent; ngx_imap_core_srv_conf_t *conf = child; u_char *p; size_t size; ngx_str_t *c, *d; ngx_uint_t i; ngx_conf_merge_size_value(conf->imap_client_buffer_size, prev->imap_client_buffer_size, (size_t) ngx_pagesize); ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); ngx_conf_merge_uint_value(conf->protocol, prev->protocol, NGX_IMAP_IMAP_PROTOCOL); ngx_conf_merge_value(conf->so_keepalive, prev->so_keepalive, 0); ngx_conf_merge_bitmask_value(conf->auth_methods, prev->auth_methods, (NGX_CONF_BITMASK_SET|NGX_IMAP_AUTH_PLAIN_ENABLED)); ngx_conf_merge_str_value(conf->server_name, prev->server_name, ""); if (conf->server_name.len == 0) { conf->server_name.data = ngx_palloc(cf->pool, NGX_MAXHOSTNAMELEN); if (conf->server_name.data == NULL) { return NGX_CONF_ERROR; } if (gethostname((char *) conf->server_name.data, NGX_MAXHOSTNAMELEN) == -1) { ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, "gethostname() failed"); return NGX_CONF_ERROR; } conf->server_name.len = ngx_strlen(conf->server_name.data); } if (conf->pop3_capabilities.nelts == 0) { conf->pop3_capabilities = prev->pop3_capabilities; } if (conf->pop3_capabilities.nelts == 0) { for (d = ngx_pop3_default_capabilities; d->len; d++) { c = ngx_array_push(&conf->pop3_capabilities); if (c == NULL) { return NGX_CONF_ERROR; } *c = *d; } } size = sizeof("+OK Capability list follows" CRLF) - 1 + sizeof("." CRLF) - 1; c = conf->pop3_capabilities.elts; for (i = 0; i < conf->pop3_capabilities.nelts; i++) { size += c[i].len + sizeof(CRLF) - 1; } if (conf->auth_methods & NGX_IMAP_AUTH_CRAM_MD5_ENABLED) { size += sizeof("SASL LOGIN PLAIN CRAM-MD5" CRLF) - 1; } else { size += sizeof("SASL LOGIN PLAIN" CRLF) - 1; } p = ngx_palloc(cf->pool, size); if (p == NULL) { return NGX_CONF_ERROR; } conf->pop3_capability.len = size; conf->pop3_capability.data = p; p = ngx_cpymem(p, "+OK Capability list follows" CRLF, sizeof("+OK Capability list follows" CRLF) - 1); for (i = 0; i < conf->pop3_capabilities.nelts; i++) { p = ngx_cpymem(p, c[i].data, c[i].len); *p++ = CR; *p++ = LF; } if (conf->auth_methods & NGX_IMAP_AUTH_CRAM_MD5_ENABLED) { p = ngx_cpymem(p, "SASL LOGIN PLAIN CRAM-MD5" CRLF, sizeof("SASL LOGIN PLAIN CRAM-MD5" CRLF) - 1); } else { p = ngx_cpymem(p, "SASL LOGIN PLAIN" CRLF, sizeof("SASL LOGIN PLAIN" CRLF) - 1); } *p++ = '.'; *p++ = CR; *p = LF; size += sizeof("STLS" CRLF) - 1; p = ngx_palloc(cf->pool, size); if (p == NULL) { return NGX_CONF_ERROR; } conf->pop3_starttls_capability.len = size; conf->pop3_starttls_capability.data = p; p = ngx_cpymem(p, conf->pop3_capability.data, conf->pop3_capability.len - (sizeof("." CRLF) - 1)); p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); *p++ = '.'; *p++ = CR; *p = LF; if (conf->auth_methods & NGX_IMAP_AUTH_CRAM_MD5_ENABLED) { conf->pop3_auth_capability = ngx_pop3_auth_cram_md5_capability; } else { conf->pop3_auth_capability = ngx_pop3_auth_plain_capability; } if (conf->imap_capabilities.nelts == 0) { conf->imap_capabilities = prev->imap_capabilities; } if (conf->imap_capabilities.nelts == 0) { for (d = ngx_imap_default_capabilities; d->len; d++) { c = ngx_array_push(&conf->imap_capabilities); if (c == NULL) { return NGX_CONF_ERROR; } *c = *d; } } size = sizeof("* CAPABILITY") - 1 + sizeof(CRLF) - 1; c = conf->imap_capabilities.elts; for (i = 0; i < conf->imap_capabilities.nelts; i++) { size += 1 + c[i].len; } p = ngx_palloc(cf->pool, size); if (p == NULL) { return NGX_CONF_ERROR; } conf->imap_capability.len = size; conf->imap_capability.data = p; p = ngx_cpymem(p, "* CAPABILITY", sizeof("* CAPABILITY") - 1); for (i = 0; i < conf->imap_capabilities.nelts; i++) { *p++ = ' '; p = ngx_cpymem(p, c[i].data, c[i].len); } *p++ = CR; *p = LF; size += sizeof(" STARTTLS") - 1; p = ngx_palloc(cf->pool, size); if (p == NULL) { return NGX_CONF_ERROR; } conf->imap_starttls_capability.len = size; conf->imap_starttls_capability.data = p; p = ngx_cpymem(p, conf->imap_capability.data, conf->imap_capability.len - (sizeof(CRLF) - 1)); p = ngx_cpymem(p, " STARTTLS", sizeof(" STARTTLS") - 1); *p++ = CR; *p = LF; size += sizeof(" LOGINDISABLED") - 1; p = ngx_palloc(cf->pool, size); if (p == NULL) { return NGX_CONF_ERROR; } conf->imap_starttls_only_capability.len = size; conf->imap_starttls_only_capability.data = p; p = ngx_cpymem(p, conf->imap_starttls_capability.data, conf->imap_starttls_capability.len - (sizeof(CRLF) - 1)); p = ngx_cpymem(p, " LOGINDISABLED", sizeof(" LOGINDISABLED") - 1); *p++ = CR; *p = LF; return NGX_CONF_OK; } static char * ngx_imap_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *rv; void *mconf; ngx_uint_t m; ngx_conf_t pcf; ngx_imap_module_t *module; ngx_imap_conf_ctx_t *ctx, *imap_ctx; ngx_imap_core_srv_conf_t *cscf, **cscfp; ngx_imap_core_main_conf_t *cmcf; ctx = ngx_pcalloc(cf->pool, sizeof(ngx_imap_conf_ctx_t)); if (ctx == NULL) { return NGX_CONF_ERROR; } imap_ctx = cf->ctx; ctx->main_conf = imap_ctx->main_conf; /* the server{}'s srv_conf */ ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_imap_max_module); if (ctx->srv_conf == NULL) { return NGX_CONF_ERROR; } for (m = 0; ngx_modules[m]; m++) { if (ngx_modules[m]->type != NGX_IMAP_MODULE) { continue; } module = ngx_modules[m]->ctx; if (module->create_srv_conf) { mconf = module->create_srv_conf(cf); if (mconf == NULL) { return NGX_CONF_ERROR; } ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; } } /* the server configuration context */ cscf = ctx->srv_conf[ngx_imap_core_module.ctx_index]; cscf->ctx = ctx; cmcf = ctx->main_conf[ngx_imap_core_module.ctx_index]; cscfp = ngx_array_push(&cmcf->servers); if (cscfp == NULL) { return NGX_CONF_ERROR; } *cscfp = cscf; /* parse inside server{} */ pcf = *cf; cf->ctx = ctx; cf->cmd_type = NGX_IMAP_SRV_CONF; rv = ngx_conf_parse(cf, NULL); *cf = pcf; return rv; } /* AF_INET only */ static char * ngx_imap_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_str_t *value; ngx_url_t u; ngx_uint_t i; ngx_imap_listen_t *imls; ngx_imap_core_main_conf_t *cmcf; value = cf->args->elts; ngx_memzero(&u, sizeof(ngx_url_t)); u.url = value[1]; u.listen = 1; if (ngx_parse_url(cf, &u) != NGX_OK) { if (u.err) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s in \"%V\" of the \"listen\" directive", u.err, &u.url); } return NGX_CONF_ERROR; } cmcf = ngx_imap_conf_get_module_main_conf(cf, ngx_imap_core_module); imls = cmcf->listen.elts; for (i = 0; i < cmcf->listen.nelts; i++) { if (imls[i].addr != u.addr.in_addr || imls[i].port != u.port) { continue; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "duplicate \"%V\" address and port pair", &u.url); return NGX_CONF_ERROR; } imls = ngx_array_push(&cmcf->listen); if (imls == NULL) { return NGX_CONF_ERROR; } ngx_memzero(imls, sizeof(ngx_imap_listen_t)); imls->addr = u.addr.in_addr; imls->port = u.port; imls->family = AF_INET; imls->ctx = cf->ctx; if (cf->args->nelts == 2) { return NGX_CONF_OK; } if (ngx_strcmp(value[2].data, "bind") == 0) { imls->bind = 1; return NGX_CONF_OK; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the invalid \"%V\" parameter", &value[2]); return NGX_CONF_ERROR; } static char * ngx_imap_core_capability(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_str_t *c, *value; ngx_uint_t i; ngx_array_t *a; a = (ngx_array_t *) (p + cmd->offset); value = cf->args->elts; for (i = 1; i < cf->args->nelts; i++) { c = ngx_array_push(a); if (c == NULL) { return NGX_CONF_ERROR; } *c = value[i]; } return NGX_CONF_OK; }