From e18a033b921d0d79fa8278f853548e6125b93e0c Mon Sep 17 00:00:00 2001 From: Konstantin Ananyev Date: Tue, 31 Oct 2017 12:40:17 +0000 Subject: Integrate TLDK with NGINX Created a clone of nginx (from https://github.com/nginx/nginx) to demonstrate and benchmark TLDK library integrated with real world application. A new nginx module is created and and BSD socket-like API is implemented on top of native TLDK API. Note, that right now only minimalistic subset of socket-like API is provided: - accept - close - readv - recv - writev so only limited nginx functionality is available for a moment. Change-Id: Ie1efe9349a0538da4348a48fb8306cbf636b5a92 Signed-off-by: Mohammad Abdul Awal Signed-off-by: Reshma Pattan Signed-off-by: Remy Horton Signed-off-by: Konstantin Ananyev --- app/nginx/src/mail/ngx_mail_imap_module.c | 257 ++++++++++++++++++++++++++++++ 1 file changed, 257 insertions(+) create mode 100644 app/nginx/src/mail/ngx_mail_imap_module.c (limited to 'app/nginx/src/mail/ngx_mail_imap_module.c') diff --git a/app/nginx/src/mail/ngx_mail_imap_module.c b/app/nginx/src/mail/ngx_mail_imap_module.c new file mode 100644 index 0000000..1f187fd --- /dev/null +++ b/app/nginx/src/mail/ngx_mail_imap_module.c @@ -0,0 +1,257 @@ + +/* + * Copyright (C) Igor Sysoev + * Copyright (C) Nginx, Inc. + */ + + +#include +#include +#include +#include +#include + + +static void *ngx_mail_imap_create_srv_conf(ngx_conf_t *cf); +static char *ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, + void *child); + + +static ngx_str_t ngx_mail_imap_default_capabilities[] = { + ngx_string("IMAP4"), + ngx_string("IMAP4rev1"), + ngx_string("UIDPLUS"), + ngx_null_string +}; + + +static ngx_conf_bitmask_t ngx_mail_imap_auth_methods[] = { + { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, + { ngx_string("login"), NGX_MAIL_AUTH_LOGIN_ENABLED }, + { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, + { ngx_string("external"), NGX_MAIL_AUTH_EXTERNAL_ENABLED }, + { ngx_null_string, 0 } +}; + + +static ngx_str_t ngx_mail_imap_auth_methods_names[] = { + ngx_string("AUTH=PLAIN"), + ngx_string("AUTH=LOGIN"), + ngx_null_string, /* APOP */ + ngx_string("AUTH=CRAM-MD5"), + ngx_string("AUTH=EXTERNAL"), + ngx_null_string /* NONE */ +}; + + +static ngx_mail_protocol_t ngx_mail_imap_protocol = { + ngx_string("imap"), + { 143, 993, 0, 0 }, + NGX_MAIL_IMAP_PROTOCOL, + + ngx_mail_imap_init_session, + ngx_mail_imap_init_protocol, + ngx_mail_imap_parse_command, + ngx_mail_imap_auth_state, + + ngx_string("* BAD internal server error" CRLF), + ngx_string("* BYE SSL certificate error" CRLF), + ngx_string("* BYE No required SSL certificate" CRLF) +}; + + +static ngx_command_t ngx_mail_imap_commands[] = { + + { ngx_string("imap_client_buffer"), + NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, + ngx_conf_set_size_slot, + NGX_MAIL_SRV_CONF_OFFSET, + offsetof(ngx_mail_imap_srv_conf_t, client_buffer_size), + NULL }, + + { ngx_string("imap_capabilities"), + NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, + ngx_mail_capabilities, + NGX_MAIL_SRV_CONF_OFFSET, + offsetof(ngx_mail_imap_srv_conf_t, capabilities), + NULL }, + + { ngx_string("imap_auth"), + NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, + ngx_conf_set_bitmask_slot, + NGX_MAIL_SRV_CONF_OFFSET, + offsetof(ngx_mail_imap_srv_conf_t, auth_methods), + &ngx_mail_imap_auth_methods }, + + ngx_null_command +}; + + +static ngx_mail_module_t ngx_mail_imap_module_ctx = { + &ngx_mail_imap_protocol, /* protocol */ + + NULL, /* create main configuration */ + NULL, /* init main configuration */ + + ngx_mail_imap_create_srv_conf, /* create server configuration */ + ngx_mail_imap_merge_srv_conf /* merge server configuration */ +}; + + +ngx_module_t ngx_mail_imap_module = { + NGX_MODULE_V1, + &ngx_mail_imap_module_ctx, /* module context */ + ngx_mail_imap_commands, /* module directives */ + NGX_MAIL_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_mail_imap_create_srv_conf(ngx_conf_t *cf) +{ + ngx_mail_imap_srv_conf_t *iscf; + + iscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_imap_srv_conf_t)); + if (iscf == NULL) { + return NULL; + } + + iscf->client_buffer_size = NGX_CONF_UNSET_SIZE; + + if (ngx_array_init(&iscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) + != NGX_OK) + { + return NULL; + } + + return iscf; +} + + +static char * +ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) +{ + ngx_mail_imap_srv_conf_t *prev = parent; + ngx_mail_imap_srv_conf_t *conf = child; + + u_char *p, *auth; + size_t size; + ngx_str_t *c, *d; + ngx_uint_t i, m; + + ngx_conf_merge_size_value(conf->client_buffer_size, + prev->client_buffer_size, + (size_t) ngx_pagesize); + + ngx_conf_merge_bitmask_value(conf->auth_methods, + prev->auth_methods, + (NGX_CONF_BITMASK_SET + |NGX_MAIL_AUTH_PLAIN_ENABLED)); + + + if (conf->capabilities.nelts == 0) { + conf->capabilities = prev->capabilities; + } + + if (conf->capabilities.nelts == 0) { + + for (d = ngx_mail_imap_default_capabilities; d->len; d++) { + c = ngx_array_push(&conf->capabilities); + if (c == NULL) { + return NGX_CONF_ERROR; + } + + *c = *d; + } + } + + size = sizeof("* CAPABILITY" CRLF) - 1; + + c = conf->capabilities.elts; + for (i = 0; i < conf->capabilities.nelts; i++) { + size += 1 + c[i].len; + } + + for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; + m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; + m <<= 1, i++) + { + if (m & conf->auth_methods) { + size += 1 + ngx_mail_imap_auth_methods_names[i].len; + } + } + + p = ngx_pnalloc(cf->pool, size); + if (p == NULL) { + return NGX_CONF_ERROR; + } + + conf->capability.len = size; + conf->capability.data = p; + + p = ngx_cpymem(p, "* CAPABILITY", sizeof("* CAPABILITY") - 1); + + for (i = 0; i < conf->capabilities.nelts; i++) { + *p++ = ' '; + p = ngx_cpymem(p, c[i].data, c[i].len); + } + + auth = p; + + for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; + m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; + m <<= 1, i++) + { + if (m & conf->auth_methods) { + *p++ = ' '; + p = ngx_cpymem(p, ngx_mail_imap_auth_methods_names[i].data, + ngx_mail_imap_auth_methods_names[i].len); + } + } + + *p++ = CR; *p = LF; + + + size += sizeof(" STARTTLS") - 1; + + p = ngx_pnalloc(cf->pool, size); + if (p == NULL) { + return NGX_CONF_ERROR; + } + + conf->starttls_capability.len = size; + conf->starttls_capability.data = p; + + p = ngx_cpymem(p, conf->capability.data, + conf->capability.len - (sizeof(CRLF) - 1)); + p = ngx_cpymem(p, " STARTTLS", sizeof(" STARTTLS") - 1); + *p++ = CR; *p = LF; + + + size = (auth - conf->capability.data) + sizeof(CRLF) - 1 + + sizeof(" STARTTLS LOGINDISABLED") - 1; + + p = ngx_pnalloc(cf->pool, size); + if (p == NULL) { + return NGX_CONF_ERROR; + } + + conf->starttls_only_capability.len = size; + conf->starttls_only_capability.data = p; + + p = ngx_cpymem(p, conf->capability.data, + auth - conf->capability.data); + p = ngx_cpymem(p, " STARTTLS LOGINDISABLED", + sizeof(" STARTTLS LOGINDISABLED") - 1); + *p++ = CR; *p = LF; + + return NGX_CONF_OK; +} -- cgit 1.2.3-korg