From 2b9ba6a970b33397dc3b58b22b4c84e39ab53378 Mon Sep 17 00:00:00 2001
From: Paul Sadauskas <psadauskas@gmail.com>
Date: Fri, 12 Jun 2009 16:46:53 -0600
Subject: [PATCH] http plugin: it works, i think

---
 configure.in    |   2 +-
 src/Makefile.am |   6 +++
 src/http.c      | 111 +++++++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 116 insertions(+), 3 deletions(-)

diff --git a/configure.in b/configure.in
index fcb39538..2ce6239b 100644
--- a/configure.in
+++ b/configure.in
@@ -3698,7 +3698,7 @@ AC_PLUGIN([couchdb],     [$plugin_couchdb],    [CouchDB statistics])
 AC_PLUGIN([cpufreq],     [$plugin_cpufreq],    [CPU frequency statistics])
 AC_PLUGIN([cpu],         [$plugin_cpu],        [CPU usage statistics])
 AC_PLUGIN([csv],         [yes],                [CSV output plugin])
-AC_PLUGIN([http],        [yes],                [HTTP output plugin])
+AC_PLUGIN([http],        [$with_libcurl],      [HTTP output plugin])
 AC_PLUGIN([curl],        [$with_libcurl],      [CURL generic web statistics])
 AC_PLUGIN([dbi],         [$with_libdbi],       [General database statistics])
 AC_PLUGIN([df],          [$plugin_df],         [Filesystem usage statistics])
diff --git a/src/Makefile.am b/src/Makefile.am
index 1fd3bba9..cfb726ce 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -228,7 +228,13 @@ if BUILD_PLUGIN_HTTP
 pkglib_LTLIBRARIES += http.la
 http_la_SOURCES = http.c
 http_la_LDFLAGS = -module -avoid-version
+http_la_CFLAGS = $(AM_CFLAGS)
+http_la_LIBADD =
 collectd_LDADD += "-dlopen" http.la
+if BUILD_WITH_LIBCURL
+http_la_CFLAGS += $(BUILD_WITH_LIBCURL_CFLAGS)
+http_la_LIBADD += $(BUILD_WITH_LIBCURL_LIBS)
+endif
 collectd_DEPENDENCIES += http.la
 endif
 
diff --git a/src/http.c b/src/http.c
index 6c0a296e..fdcd34fb 100644
--- a/src/http.c
+++ b/src/http.c
@@ -27,17 +27,69 @@
 #include "utils_cache.h"
 #include "utils_parse_option.h"
 
+#include <curl/curl.h>
+
 /*
  * Private variables
  */
 static const char *config_keys[] =
 {
-  "Location",
+  "Location", "User", "Password"
 };
 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
 
 static char *location   = NULL;
 
+char *user;
+char *pass;
+char *credentials;
+
+CURL *curl;
+char curl_errbuf[CURL_ERROR_SIZE];
+struct curl_slist *headers=NULL;
+
+static int http_init(void)
+{
+
+  curl = curl_easy_init ();
+  if (curl == NULL)
+  {
+    ERROR ("curl plugin: curl_easy_init failed.");
+    return (-1);
+  }
+
+  curl_easy_setopt (curl, CURLOPT_USERAGENT, PACKAGE_NAME"/"PACKAGE_VERSION);
+  headers = curl_slist_append(headers, "Accept: application/vnd.absperf.ssbe+json");
+  headers = curl_slist_append(headers, "Content-Type: text/csv");
+
+  curl_easy_setopt (curl, CURLOPT_HTTPHEADER, headers);
+  curl_easy_setopt (curl, CURLOPT_ERRORBUFFER, curl_errbuf);
+  curl_easy_setopt (curl, CURLOPT_URL, location);
+
+  if (user != NULL)
+  {
+    size_t credentials_size;
+
+    credentials_size = strlen (user) + 2;
+    if (pass != NULL)
+      credentials_size += strlen (pass);
+
+    credentials = (char *) malloc (credentials_size);
+    if (credentials == NULL)
+    {
+      ERROR ("curl plugin: malloc failed.");
+      return (-1);
+    }
+
+    ssnprintf (credentials, credentials_size, "%s:%s",
+        user, (pass == NULL) ? "" : pass);
+    curl_easy_setopt (curl, CURLOPT_USERPWD, credentials);
+    curl_easy_setopt (curl, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
+  }
+
+  return (0);
+}
+
 static int value_list_to_string (char *buffer, int buffer_len,
     const data_set_t *ds, const value_list_t *vl)
 {
@@ -196,6 +248,46 @@ static int http_config (const char *key, const char *value)
       }
     }
   }
+  else if (strcasecmp ("User", key) == 0)
+  {
+    if (user != NULL)
+      free (user);
+    user = strdup (value);
+    if (user != NULL)
+    {
+      int len = strlen (user);
+      while ((len > 0) && (user[len - 1] == '/'))
+      {
+        len--;
+        user[len] = '\0';
+      }
+      if (len <= 0)
+      {
+        free (user);
+        user = NULL;
+      }
+    }
+  }
+  else if (strcasecmp ("Password", key) == 0)
+  {
+    if (pass != NULL)
+      free (pass);
+    pass = strdup (value);
+    if (pass != NULL)
+    {
+      int len = strlen (pass);
+      while ((len > 0) && (pass[len - 1] == '/'))
+      {
+        len--;
+        pass[len] = '\0';
+      }
+      if (len <= 0)
+      {
+        free (pass);
+        pass = NULL;
+      }
+    }
+  }
   else
   {
     return (-1);
@@ -210,6 +302,10 @@ static int http_write (const data_set_t *ds, const value_list_t *vl,
   char         values[512];
   char         timestamp[512];
 
+  char csv_buffer[1536];
+
+  int status;
+
   if (0 != strcmp (ds->type, vl->type)) {
     ERROR ("http plugin: DS type does not match value list type");
     return -1;
@@ -228,15 +324,26 @@ static int http_write (const data_set_t *ds, const value_list_t *vl,
 
   escape_string (metric_name, sizeof (metric_name));
 
-  fprintf (stdout,
+  status = ssnprintf (csv_buffer, 1536,
       "\"%s\",%s,%s\n",
       metric_name, timestamp, values);
+
+  curl_easy_setopt (curl, CURLOPT_POSTFIELDS, csv_buffer);
+  status = curl_easy_perform (curl);
+  if (status != 0)
+  {
+    ERROR ("curl plugin: curl_easy_perform failed with staus %i: %s",
+        status, curl_errbuf);
+    return (-1);
+  }
+
   return (0);
 
 } /* int http_write */
 
 void module_register (void)
 {
+  plugin_register_init("http", http_init);
   plugin_register_config ("http", http_config,
       config_keys, config_keys_num);
   plugin_register_write ("http", http_write, /* user_data = */ NULL);
-- 
2.30.2