smtp: Moved the calculation of SASL login details into a separate function
This commit is contained in:
Steve Holme
Родитель
c93bd31336
Коммит
6c62d84232
160
lib/smtp.c
160
lib/smtp.c
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@ -105,6 +105,10 @@ static CURLcode smtp_setup_connection(struct connectdata *conn);
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static CURLcode smtp_parse_url_options(struct connectdata *conn);
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static CURLcode smtp_parse_url_path(struct connectdata *conn);
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static CURLcode smtp_parse_custom_request(struct connectdata *conn);
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static CURLcode smtp_calc_sasl_details(struct connectdata *conn,
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const char **mech,
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char **initresp, size_t *len,
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smtpstate *state1, smtpstate *state2);
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/*
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* SMTP protocol handler.
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@ -471,7 +475,6 @@ static CURLcode smtp_perform_auth(struct connectdata *conn,
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static CURLcode smtp_perform_authentication(struct connectdata *conn)
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{
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CURLcode result = CURLE_OK;
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struct SessionHandle *data = conn->data;
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struct smtp_conn *smtpc = &conn->proto.smtpc;
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const char *mech = NULL;
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char *initresp = NULL;
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@ -487,73 +490,9 @@ static CURLcode smtp_perform_authentication(struct connectdata *conn)
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return result;
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}
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/* Calculate the supported authentication mechanism, by decreasing order of
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security, as well as the initial response where appropriate */
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#ifndef CURL_DISABLE_CRYPTO_AUTH
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if((smtpc->authmechs & SASL_MECH_DIGEST_MD5) &&
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(smtpc->prefmech & SASL_MECH_DIGEST_MD5)) {
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mech = SASL_MECH_STRING_DIGEST_MD5;
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state1 = SMTP_AUTH_DIGESTMD5;
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smtpc->authused = SASL_MECH_DIGEST_MD5;
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}
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else if((smtpc->authmechs & SASL_MECH_CRAM_MD5) &&
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(smtpc->prefmech & SASL_MECH_CRAM_MD5)) {
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mech = SASL_MECH_STRING_CRAM_MD5;
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state1 = SMTP_AUTH_CRAMMD5;
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smtpc->authused = SASL_MECH_CRAM_MD5;
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}
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else
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#endif
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#ifdef USE_NTLM
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if((smtpc->authmechs & SASL_MECH_NTLM) &&
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(smtpc->prefmech & SASL_MECH_NTLM)) {
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mech = SASL_MECH_STRING_NTLM;
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state1 = SMTP_AUTH_NTLM;
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state2 = SMTP_AUTH_NTLM_TYPE2MSG;
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smtpc->authused = SASL_MECH_NTLM;
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if(data->set.sasl_ir)
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result = Curl_sasl_create_ntlm_type1_message(conn->user, conn->passwd,
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&conn->ntlm,
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&initresp, &len);
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}
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else
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#endif
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if(((smtpc->authmechs & SASL_MECH_XOAUTH2) &&
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(smtpc->prefmech & SASL_MECH_XOAUTH2) &&
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(smtpc->prefmech != SASL_AUTH_ANY)) || conn->xoauth2_bearer) {
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mech = SASL_MECH_STRING_XOAUTH2;
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state1 = SMTP_AUTH_XOAUTH2;
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state2 = SMTP_AUTH_FINAL;
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smtpc->authused = SASL_MECH_XOAUTH2;
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if(data->set.sasl_ir)
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result = Curl_sasl_create_xoauth2_message(conn->data, conn->user,
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conn->xoauth2_bearer,
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&initresp, &len);
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}
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else if((smtpc->authmechs & SASL_MECH_LOGIN) &&
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(smtpc->prefmech & SASL_MECH_LOGIN)) {
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mech = SASL_MECH_STRING_LOGIN;
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state1 = SMTP_AUTH_LOGIN;
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state2 = SMTP_AUTH_LOGIN_PASSWD;
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smtpc->authused = SASL_MECH_LOGIN;
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if(data->set.sasl_ir)
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result = Curl_sasl_create_login_message(conn->data, conn->user,
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&initresp, &len);
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}
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else if((smtpc->authmechs & SASL_MECH_PLAIN) &&
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(smtpc->prefmech & SASL_MECH_PLAIN)) {
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mech = SASL_MECH_STRING_PLAIN;
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state1 = SMTP_AUTH_PLAIN;
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state2 = SMTP_AUTH_FINAL;
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smtpc->authused = SASL_MECH_PLAIN;
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if(data->set.sasl_ir)
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result = Curl_sasl_create_plain_message(conn->data, conn->user,
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conn->passwd, &initresp, &len);
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}
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/* Calculate the SASL login details */
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result = smtp_calc_sasl_details(conn, &mech, &initresp, &len, &state1,
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&state2);
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if(!result) {
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if(mech) {
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@ -2044,6 +1983,91 @@ static CURLcode smtp_parse_custom_request(struct connectdata *conn)
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return result;
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}
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/***********************************************************************
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*
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* smtp_calc_sasl_details()
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*
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* Calculate the required login details for SASL authentication.
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*/
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static CURLcode smtp_calc_sasl_details(struct connectdata *conn,
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const char **mech,
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char **initresp, size_t *len,
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smtpstate *state1, smtpstate *state2)
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{
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CURLcode result = CURLE_OK;
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struct SessionHandle *data = conn->data;
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struct smtp_conn *smtpc = &conn->proto.smtpc;
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/* Calculate the supported authentication mechanism, by decreasing order of
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security, as well as the initial response where appropriate */
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#ifndef CURL_DISABLE_CRYPTO_AUTH
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if((smtpc->authmechs & SASL_MECH_DIGEST_MD5) &&
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(smtpc->prefmech & SASL_MECH_DIGEST_MD5)) {
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*mech = SASL_MECH_STRING_DIGEST_MD5;
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*state1 = SMTP_AUTH_DIGESTMD5;
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smtpc->authused = SASL_MECH_DIGEST_MD5;
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}
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else if((smtpc->authmechs & SASL_MECH_CRAM_MD5) &&
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(smtpc->prefmech & SASL_MECH_CRAM_MD5)) {
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*mech = SASL_MECH_STRING_CRAM_MD5;
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*state1 = SMTP_AUTH_CRAMMD5;
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smtpc->authused = SASL_MECH_CRAM_MD5;
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}
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else
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#endif
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#ifdef USE_NTLM
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if((smtpc->authmechs & SASL_MECH_NTLM) &&
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(smtpc->prefmech & SASL_MECH_NTLM)) {
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*mech = SASL_MECH_STRING_NTLM;
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*state1 = SMTP_AUTH_NTLM;
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*state2 = SMTP_AUTH_NTLM_TYPE2MSG;
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smtpc->authused = SASL_MECH_NTLM;
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if(data->set.sasl_ir)
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result = Curl_sasl_create_ntlm_type1_message(conn->user, conn->passwd,
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&conn->ntlm,
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initresp, len);
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}
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else
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#endif
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if(((smtpc->authmechs & SASL_MECH_XOAUTH2) &&
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(smtpc->prefmech & SASL_MECH_XOAUTH2) &&
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(smtpc->prefmech != SASL_AUTH_ANY)) || conn->xoauth2_bearer) {
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*mech = SASL_MECH_STRING_XOAUTH2;
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*state1 = SMTP_AUTH_XOAUTH2;
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*state2 = SMTP_AUTH_FINAL;
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smtpc->authused = SASL_MECH_XOAUTH2;
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if(data->set.sasl_ir)
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result = Curl_sasl_create_xoauth2_message(data, conn->user,
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conn->xoauth2_bearer,
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initresp, len);
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}
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else if((smtpc->authmechs & SASL_MECH_LOGIN) &&
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(smtpc->prefmech & SASL_MECH_LOGIN)) {
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*mech = SASL_MECH_STRING_LOGIN;
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*state1 = SMTP_AUTH_LOGIN;
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*state2 = SMTP_AUTH_LOGIN_PASSWD;
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smtpc->authused = SASL_MECH_LOGIN;
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if(data->set.sasl_ir)
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result = Curl_sasl_create_login_message(data, conn->user, initresp, len);
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}
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else if((smtpc->authmechs & SASL_MECH_PLAIN) &&
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(smtpc->prefmech & SASL_MECH_PLAIN)) {
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*mech = SASL_MECH_STRING_PLAIN;
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*state1 = SMTP_AUTH_PLAIN;
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*state2 = SMTP_AUTH_FINAL;
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smtpc->authused = SASL_MECH_PLAIN;
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if(data->set.sasl_ir)
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result = Curl_sasl_create_plain_message(data, conn->user, conn->passwd,
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initresp, len);
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}
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return result;
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}
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CURLcode Curl_smtp_escape_eob(struct connectdata *conn, ssize_t nread)
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{
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/* When sending a SMTP payload we must detect CRLF. sequences making sure
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