[gnurl] 65/411: mqtt: enable by default

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nikita pushed a commit to branch master
in repository gnurl.

commit e37e4468688d8f6b9038a0d7085f8c0b2695d112
Author: Daniel Stenberg <daniel@haxx.se>
AuthorDate: Mon Aug 31 09:45:09 2020 +0200

    mqtt: enable by default
    
    No longer considered experimental.
    
    Closes #5858
---
 .travis.yml             |   2 -
 CMakeLists.txt          |   6 +-
 configure.ac            |   7 +-
 docs/CURL-DISABLE.md    |   4 +
 docs/EXPERIMENTAL.md    |   1 -
 lib/curl_config.h.cmake |   4 +-
 lib/mqtt.c              |   4 +-
 lib/mqtt.h              |   2 +-
 lib/setopt.c            | 190 ++++++++++++++++++++++++------------------------
 lib/url.c               |   2 +-
 lib/version.c           |   2 +-
 11 files changed, 113 insertions(+), 111 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index dd9ab3dc7..503d1ced6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -80,8 +80,6 @@ jobs:
   - env:
     - T=normal C="--enable-ares"
     - OVERRIDE_CC="CC=gcc-8" OVERRIDE_CXX="CXX=g++-8"
-  - env:
-    - T=normal C="--enable-mqtt"
   - env:
     - T=normal C="--disable-proxy"
   - env:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f55894f11..d8d532751 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -190,8 +190,8 @@ option(CURL_DISABLE_SMTP "to disable SMTP" OFF)
 mark_as_advanced(CURL_DISABLE_SMTP)
 option(CURL_DISABLE_GOPHER "to disable Gopher" OFF)
 mark_as_advanced(CURL_DISABLE_GOPHER)
-option(CURL_ENABLE_MQTT "to enable MQTT" OFF)
-mark_as_advanced(CURL_ENABLE_MQTT)
+option(CURL_DISABLE_MQTT "to disable MQTT" OFF)
+mark_as_advanced(CURL_DISABLE_MQTT)
 
 if(HTTP_ONLY)
   set(CURL_DISABLE_FTP ON)
@@ -1419,7 +1419,7 @@ _add_if("SCP"           USE_LIBSSH2 OR USE_LIBSSH)
 _add_if("SFTP"          USE_LIBSSH2 OR USE_LIBSSH)
 _add_if("RTSP"          NOT CURL_DISABLE_RTSP)
 _add_if("RTMP"          USE_LIBRTMP)
-_add_if("MQTT"          CURL_ENABLE_MQTT)
+_add_if("MQTT"          NOT CURL_DISABLE_MQTT)
 if(_items)
   list(SORT _items)
 endif()
diff --git a/configure.ac b/configure.ac
index b063070d5..433a5c22b 100755
--- a/configure.ac
+++ b/configure.ac
@@ -645,11 +645,10 @@ AC_HELP_STRING([--disable-mqtt],[Disable MQTT support]),
 [ case "$enableval" in
   no)
        AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_MQTT, 1, [to disable MQTT])
+       AC_SUBST(CURL_DISABLE_MQTT, [1])
        ;;
   *)   AC_MSG_RESULT(yes)
-       experimental="$experimental MQTT"
-       AC_DEFINE(CURL_ENABLE_MQTT, 1, [to enable MQTT])
-       AC_SUBST(CURL_ENABLE_MQTT, [1])
        ;;
   esac ],
        AC_MSG_RESULT(no)
@@ -5082,7 +5081,7 @@ fi
 if test "x$CURL_DISABLE_GOPHER" != "x1"; then
   SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS GOPHER"
 fi
-if test "x$CURL_ENABLE_MQTT" = "x1"; then
+if test "x$CURL_DISABLE_MQTT" != "x1"; then
   SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS MQTT"
 fi
 if test "x$CURL_DISABLE_POP3" != "x1"; then
diff --git a/docs/CURL-DISABLE.md b/docs/CURL-DISABLE.md
index f90acda2c..a9e6acaf8 100644
--- a/docs/CURL-DISABLE.md
+++ b/docs/CURL-DISABLE.md
@@ -62,6 +62,10 @@ Disable the --libcurl option from the curl tool.
 
 Disable MIME support.
 
+## CURL_DISABLE_MQTT
+
+Disable MQTT support.
+
 ## CURL_DISABLE_NETRC
 
 Disable the netrc parser.
diff --git a/docs/EXPERIMENTAL.md b/docs/EXPERIMENTAL.md
index bca2bd910..6a014c3da 100644
--- a/docs/EXPERIMENTAL.md
+++ b/docs/EXPERIMENTAL.md
@@ -20,5 +20,4 @@ Experimental support in curl means:
 
  - HTTP/3 support and options
  - alt-svc support and options
- - MQTT
  - CURLSSLOPT_NATIVE_CA (No configure option, feature built in when supported)
diff --git a/lib/curl_config.h.cmake b/lib/curl_config.h.cmake
index dd870789e..eca3734b0 100644
--- a/lib/curl_config.h.cmake
+++ b/lib/curl_config.h.cmake
@@ -63,8 +63,8 @@
 /* to disable LDAPS */
 #cmakedefine CURL_DISABLE_LDAPS 1
 
-/* to enable MQTT */
-#undef CURL_ENABLE_MQTT
+/* to disable MQTT */
+#cmakedefine CURL_DISABLE_MQTT 1
 
 /* to disable POP3 */
 #cmakedefine CURL_DISABLE_POP3 1
diff --git a/lib/mqtt.c b/lib/mqtt.c
index f6f441614..486066fb6 100644
--- a/lib/mqtt.c
+++ b/lib/mqtt.c
@@ -23,7 +23,7 @@
 
 #include "curl_setup.h"
 
-#ifdef CURL_ENABLE_MQTT
+#ifndef CURL_DISABLE_MQTT
 
 #include "urldata.h"
 #include <curl/curl.h>
@@ -625,4 +625,4 @@ static CURLcode mqtt_doing(struct connectdata *conn, bool 
*done)
   return result;
 }
 
-#endif /* CURL_ENABLE_MQTT */
+#endif /* CURL_DISABLE_MQTT */
diff --git a/lib/mqtt.h b/lib/mqtt.h
index 37463d58a..37c044135 100644
--- a/lib/mqtt.h
+++ b/lib/mqtt.h
@@ -22,7 +22,7 @@
  *
  ***************************************************************************/
 
-#ifdef CURL_ENABLE_MQTT
+#ifndef CURL_DISABLE_MQTT
 extern const struct Curl_handler Curl_handler_mqtt;
 #endif
 
diff --git a/lib/setopt.c b/lib/setopt.c
index ef6c7cb9a..c44470e91 100644
--- a/lib/setopt.c
+++ b/lib/setopt.c
@@ -434,100 +434,8 @@ CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption 
option, va_list param)
 #endif
     break;
 
-#ifndef CURL_DISABLE_HTTP
-  case CURLOPT_AUTOREFERER:
-    /*
-     * Switch on automatic referer that gets set if curl follows locations.
-     */
-    data->set.http_auto_referer = (0 != va_arg(param, long)) ? TRUE : FALSE;
-    break;
-
-  case CURLOPT_ACCEPT_ENCODING:
-    /*
-     * String to use at the value of Accept-Encoding header.
-     *
-     * If the encoding is set to "" we use an Accept-Encoding header that
-     * encompasses all the encodings we support.
-     * If the encoding is set to NULL we don't send an Accept-Encoding header
-     * and ignore an received Content-Encoding header.
-     *
-     */
-    argptr = va_arg(param, char *);
-    if(argptr && !*argptr) {
-      argptr = Curl_all_content_encodings();
-      if(!argptr)
-        result = CURLE_OUT_OF_MEMORY;
-      else {
-        result = Curl_setstropt(&data->set.str[STRING_ENCODING], argptr);
-        free(argptr);
-      }
-    }
-    else
-      result = Curl_setstropt(&data->set.str[STRING_ENCODING], argptr);
-    break;
-
-  case CURLOPT_TRANSFER_ENCODING:
-    data->set.http_transfer_encoding = (0 != va_arg(param, long)) ?
-      TRUE : FALSE;
-    break;
-
-  case CURLOPT_FOLLOWLOCATION:
-    /*
-     * Follow Location: header hints on a HTTP-server.
-     */
-    data->set.http_follow_location = (0 != va_arg(param, long)) ? TRUE : FALSE;
-    break;
-
-  case CURLOPT_UNRESTRICTED_AUTH:
-    /*
-     * Send authentication (user+password) when following locations, even when
-     * hostname changed.
-     */
-    data->set.allow_auth_to_other_hosts =
-      (0 != va_arg(param, long)) ? TRUE : FALSE;
-    break;
-
-  case CURLOPT_MAXREDIRS:
-    /*
-     * The maximum amount of hops you allow curl to follow Location:
-     * headers. This should mostly be used to detect never-ending loops.
-     */
-    arg = va_arg(param, long);
-    if(arg < -1)
-      return CURLE_BAD_FUNCTION_ARGUMENT;
-    data->set.maxredirs = arg;
-    break;
-
-  case CURLOPT_POSTREDIR:
-    /*
-     * Set the behaviour of POST when redirecting
-     * CURL_REDIR_GET_ALL - POST is changed to GET after 301 and 302
-     * CURL_REDIR_POST_301 - POST is kept as POST after 301
-     * CURL_REDIR_POST_302 - POST is kept as POST after 302
-     * CURL_REDIR_POST_303 - POST is kept as POST after 303
-     * CURL_REDIR_POST_ALL - POST is kept as POST after 301, 302 and 303
-     * other - POST is kept as POST after 301 and 302
-     */
-    arg = va_arg(param, long);
-    if(arg < CURL_REDIR_GET_ALL)
-      /* no return error on too high numbers since the bitmask could be
-         extended in a future */
-      return CURLE_BAD_FUNCTION_ARGUMENT;
-    data->set.keep_post = arg & CURL_REDIR_POST_ALL;
-    break;
-
-  case CURLOPT_POST:
-    /* Does this option serve a purpose anymore? Yes it does, when
-       CURLOPT_POSTFIELDS isn't used and the POST data is read off the
-       callback! */
-    if(va_arg(param, long)) {
-      data->set.method = HTTPREQ_POST;
-      data->set.opt_no_body = FALSE; /* this is implied */
-    }
-    else
-      data->set.method = HTTPREQ_GET;
-    break;
-
+    /* MQTT "borrows" some of the HTTP options */
+#if !defined(CURL_DISABLE_HTTP) || !defined(CURL_DISABLE_MQTT)
   case CURLOPT_COPYPOSTFIELDS:
     /*
      * A string with POST data. Makes curl HTTP POST. Even if it is NULL.
@@ -622,6 +530,100 @@ CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption 
option, va_list param)
 
     data->set.postfieldsize = bigsize;
     break;
+#endif
+#ifndef CURL_DISABLE_HTTP
+  case CURLOPT_AUTOREFERER:
+    /*
+     * Switch on automatic referer that gets set if curl follows locations.
+     */
+    data->set.http_auto_referer = (0 != va_arg(param, long)) ? TRUE : FALSE;
+    break;
+
+  case CURLOPT_ACCEPT_ENCODING:
+    /*
+     * String to use at the value of Accept-Encoding header.
+     *
+     * If the encoding is set to "" we use an Accept-Encoding header that
+     * encompasses all the encodings we support.
+     * If the encoding is set to NULL we don't send an Accept-Encoding header
+     * and ignore an received Content-Encoding header.
+     *
+     */
+    argptr = va_arg(param, char *);
+    if(argptr && !*argptr) {
+      argptr = Curl_all_content_encodings();
+      if(!argptr)
+        result = CURLE_OUT_OF_MEMORY;
+      else {
+        result = Curl_setstropt(&data->set.str[STRING_ENCODING], argptr);
+        free(argptr);
+      }
+    }
+    else
+      result = Curl_setstropt(&data->set.str[STRING_ENCODING], argptr);
+    break;
+
+  case CURLOPT_TRANSFER_ENCODING:
+    data->set.http_transfer_encoding = (0 != va_arg(param, long)) ?
+      TRUE : FALSE;
+    break;
+
+  case CURLOPT_FOLLOWLOCATION:
+    /*
+     * Follow Location: header hints on a HTTP-server.
+     */
+    data->set.http_follow_location = (0 != va_arg(param, long)) ? TRUE : FALSE;
+    break;
+
+  case CURLOPT_UNRESTRICTED_AUTH:
+    /*
+     * Send authentication (user+password) when following locations, even when
+     * hostname changed.
+     */
+    data->set.allow_auth_to_other_hosts =
+      (0 != va_arg(param, long)) ? TRUE : FALSE;
+    break;
+
+  case CURLOPT_MAXREDIRS:
+    /*
+     * The maximum amount of hops you allow curl to follow Location:
+     * headers. This should mostly be used to detect never-ending loops.
+     */
+    arg = va_arg(param, long);
+    if(arg < -1)
+      return CURLE_BAD_FUNCTION_ARGUMENT;
+    data->set.maxredirs = arg;
+    break;
+
+  case CURLOPT_POSTREDIR:
+    /*
+     * Set the behaviour of POST when redirecting
+     * CURL_REDIR_GET_ALL - POST is changed to GET after 301 and 302
+     * CURL_REDIR_POST_301 - POST is kept as POST after 301
+     * CURL_REDIR_POST_302 - POST is kept as POST after 302
+     * CURL_REDIR_POST_303 - POST is kept as POST after 303
+     * CURL_REDIR_POST_ALL - POST is kept as POST after 301, 302 and 303
+     * other - POST is kept as POST after 301 and 302
+     */
+    arg = va_arg(param, long);
+    if(arg < CURL_REDIR_GET_ALL)
+      /* no return error on too high numbers since the bitmask could be
+         extended in a future */
+      return CURLE_BAD_FUNCTION_ARGUMENT;
+    data->set.keep_post = arg & CURL_REDIR_POST_ALL;
+    break;
+
+  case CURLOPT_POST:
+    /* Does this option serve a purpose anymore? Yes it does, when
+       CURLOPT_POSTFIELDS isn't used and the POST data is read off the
+       callback! */
+    if(va_arg(param, long)) {
+      data->set.method = HTTPREQ_POST;
+      data->set.opt_no_body = FALSE; /* this is implied */
+    }
+    else
+      data->set.method = HTTPREQ_GET;
+    break;
 
   case CURLOPT_HTTPPOST:
     /*
diff --git a/lib/url.c b/lib/url.c
index 2f879a61c..689682c53 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -227,7 +227,7 @@ static const struct Curl_handler * const protocols[] = {
   &Curl_handler_rtsp,
 #endif
 
-#ifdef CURL_ENABLE_MQTT
+#ifndef CURL_DISABLE_MQTT
   &Curl_handler_mqtt,
 #endif
 
diff --git a/lib/version.c b/lib/version.c
index 0abcb0dec..0d68b2c4a 100644
--- a/lib/version.c
+++ b/lib/version.c
@@ -298,7 +298,7 @@ static const char * const protocols[] = {
   "ldaps",
 #endif
 #endif
-#ifdef CURL_ENABLE_MQTT
+#ifndef CURL_DISABLE_MQTT
   "mqtt",
 #endif
 #ifndef CURL_DISABLE_POP3

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