X-Git-Url: https://git.toastfreeware.priv.at/gregoa/bti.git/blobdiff_plain/6bf1803239e74f165dab471dd2930671fb1fd8ec..37a84bdcca02fc32e9e44c60ce297da2479ffc0a:/bti.c

diff --git a/bti.c b/bti.c
index 28d205d..881b826 100644
--- a/bti.c
+++ b/bti.c
@@ -1,6 +1,7 @@
 /*
- * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2008-2011 Greg Kroah-Hartman <greg@kroah.com>
  * Copyright (C) 2009 Bart Trojanowski <bart@jukie.net>
+ * Copyright (C) 2009-2010 Amir Mohammad Saied <amirsaied@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -32,12 +33,14 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <curl/curl.h>
-#include <readline/readline.h>
 #include <libxml/xmlmemory.h>
 #include <libxml/parser.h>
 #include <libxml/tree.h>
 #include <pcre.h>
-
+#include <termios.h>
+#include <dlfcn.h>
+#include <oauth.h>
+#include "bti.h"
 
 #define zalloc(size)	calloc(size, 1)
 
@@ -49,68 +52,36 @@
 	} while (0)
 
 
-static int debug;
-
-enum host {
-	HOST_TWITTER = 0,
-	HOST_IDENTICA = 1,
-};
-
-enum action {
-	ACTION_UPDATE = 0,
-	ACTION_FRIENDS = 1,
-	ACTION_USER = 2,
-	ACTION_REPLIES = 4,
-	ACTION_PUBLIC = 8,
-	ACTION_UNKNOWN = 16
-};
-
-struct session {
-	char *password;
-	char *account;
-	char *tweet;
-	char *proxy;
-	char *time;
-	char *homedir;
-	char *logfile;
-	char *user;
-	int bash;
-	int shrink_urls;
-	int dry_run;
-	int page;
-	enum host host;
-	enum action action;
-};
-
-struct bti_curl_buffer {
-	char *data;
-	enum action action;
-	int length;
-};
+int debug;
 
 static void display_help(void)
 {
-	fprintf(stdout, "bti - send tweet to twitter or identi.ca\n");
-	fprintf(stdout, "Version: " VERSION "\n");
-	fprintf(stdout, "Usage:\n");
-	fprintf(stdout, "  bti [options]\n");
-	fprintf(stdout, "options are:\n");
-	fprintf(stdout, "  --account accountname\n");
-	fprintf(stdout, "  --password password\n");
-	fprintf(stdout, "  --action action\n");
-	fprintf(stdout, "    ('update', 'friends', 'public', 'replies' "
-		"or 'user')\n");
-	fprintf(stdout, "  --user screenname\n");
-	fprintf(stdout, "  --proxy PROXY:PORT\n");
-	fprintf(stdout, "  --host HOST\n");
-	fprintf(stdout, "  --logfile logfile\n");
-	fprintf(stdout, "  --shrink-urls\n");
-	fprintf(stdout, "  --page PAGENUMBER\n");
-	fprintf(stdout, "  --bash\n");
-	fprintf(stdout, "  --debug\n");
-	fprintf(stdout, "  --dry-run\n");
-	fprintf(stdout, "  --version\n");
-	fprintf(stdout, "  --help\n");
+	fprintf(stdout, "bti - send tweet to twitter or identi.ca\n"
+		"Version: %s\n"
+		"Usage:\n"
+		"  bti [options]\n"
+		"options are:\n"
+		"  --account accountname\n"
+		"  --password password\n"
+		"  --action action\n"
+		"    ('update', 'friends', 'public', 'replies', or 'user')\n"
+		"  --user screenname\n"
+		"  --group groupname\n"
+		"  --proxy PROXY:PORT\n"
+		"  --host HOST\n"
+		"  --logfile logfile\n"
+		"  --config configfile\n"
+		"  --replyto ID\n"
+		"  --retweet ID\n"
+		"  --shrink-urls\n"
+		"  --page PAGENUMBER\n"
+		"  --bash\n"
+		"  --background\n"
+		"  --debug\n"
+		"  --verbose\n"
+		"  --dry-run\n"
+		"  --version\n"
+		"  --help\n", VERSION);
 }
 
 static void display_version(void)
@@ -118,6 +89,102 @@ static void display_version(void)
 	fprintf(stdout, "bti - version %s\n", VERSION);
 }
 
+static char *get_string(const char *name)
+{
+	char *temp;
+	char *string;
+
+	string = zalloc(1000);
+	if (!string)
+		exit(1);
+	if (name != NULL)
+		fprintf(stdout, "%s", name);
+	if (!fgets(string, 999, stdin))
+		return NULL;
+	temp = strchr(string, '\n');
+	if (temp)
+		*temp = '\0';
+	return string;
+}
+
+/*
+ * Try to get a handle to a readline function from a variety of different
+ * libraries.  If nothing is present on the system, then fall back to an
+ * internal one.
+ *
+ * Logic originally based off of code in the e2fsutils package in the
+ * lib/ss/get_readline.c file, which is licensed under the MIT license.
+ *
+ * This keeps us from having to relicense the bti codebase if readline
+ * ever changes its license, as there is no link-time dependancy.
+ * It is a run-time thing only, and we handle any readline-like library
+ * in the same manner, making bti not be a derivative work of any
+ * other program.
+ */
+static void session_readline_init(struct session *session)
+{
+	/* Libraries we will try to use for readline/editline functionality */
+	const char *libpath = "libreadline.so.6:libreadline.so.5:"
+				"libreadline.so.4:libreadline.so:libedit.so.2:"
+				"libedit.so:libeditline.so.0:libeditline.so";
+	void *handle = NULL;
+	char *tmp, *cp, *next;
+	int (*bind_key)(int, void *);
+	void (*insert)(void);
+
+	/* default to internal function if we can't or won't find anything */
+	session->readline = get_string;
+	if (!isatty(0))
+		return;
+	session->interactive = 1;
+
+	tmp = malloc(strlen(libpath)+1);
+	if (!tmp)
+		return;
+	strcpy(tmp, libpath);
+	for (cp = tmp; cp; cp = next) {
+		next = strchr(cp, ':');
+		if (next)
+			*next++ = 0;
+		if (*cp == 0)
+			continue;
+		handle = dlopen(cp, RTLD_NOW);
+		if (handle) {
+			dbg("Using %s for readline library\n", cp);
+			break;
+		}
+	}
+	free(tmp);
+	if (!handle) {
+		dbg("No readline library found.\n");
+		return;
+	}
+
+	session->readline_handle = handle;
+	session->readline = (char *(*)(const char *))dlsym(handle, "readline");
+	if (session->readline == NULL) {
+		/* something odd happened, default back to internal stuff */
+		session->readline_handle = NULL;
+		session->readline = get_string;
+		return;
+	}
+
+	/*
+	 * If we found a library, turn off filename expansion
+	 * as that makes no sense from within bti.
+	 */
+	bind_key = (int (*)(int, void *))dlsym(handle, "rl_bind_key");
+	insert = (void (*)(void))dlsym(handle, "rl_insert");
+	if (bind_key && insert)
+		bind_key('\t', insert);
+}
+
+static void session_readline_cleanup(struct session *session)
+{
+	if (session->readline_handle)
+		dlclose(session->readline_handle);
+}
+
 static struct session *session_alloc(void)
 {
 	struct session *session;
@@ -132,13 +199,23 @@ static void session_free(struct session *session)
 {
 	if (!session)
 		return;
+	free(session->retweet);
+	free(session->replyto);
 	free(session->password);
 	free(session->account);
+	free(session->consumer_key);
+	free(session->consumer_secret);
+	free(session->access_token_key);
+	free(session->access_token_secret);
 	free(session->tweet);
 	free(session->proxy);
 	free(session->time);
 	free(session->homedir);
 	free(session->user);
+	free(session->group);
+	free(session->hosturl);
+	free(session->hostname);
+	free(session->configfile);
 	free(session);
 }
 
@@ -170,17 +247,26 @@ static void bti_curl_buffer_free(struct bti_curl_buffer *buffer)
 	free(buffer);
 }
 
-static const char *twitter_user_url    = "http://twitter.com/statuses/user_timeline/";
-static const char *twitter_update_url  = "https://twitter.com/statuses/update.xml";
-static const char *twitter_public_url  = "http://twitter.com/statuses/public_timeline.xml";
-static const char *twitter_friends_url = "https://twitter.com/statuses/friends_timeline.xml";
-static const char *twitter_replies_url = "http://twitter.com/statuses/replies.xml";
-
-static const char *identica_user_url    = "http://identi.ca/api/statuses/user_timeline/";
-static const char *identica_update_url  = "http://identi.ca/api/statuses/update.xml";
-static const char *identica_public_url  = "http://identi.ca/api/statuses/public_timeline.xml";
-static const char *identica_friends_url = "http://identi.ca/api/statuses/friends_timeline.xml";
-static const char *identica_replies_url = "http://identi.ca/api/statuses/replies.xml";
+const char twitter_host[]  = "http://api.twitter.com/1/statuses";
+const char identica_host[] = "https://identi.ca/api/statuses";
+const char twitter_name[]  = "twitter";
+const char identica_name[] = "identi.ca";
+
+static const char twitter_request_token_uri[]  = "http://twitter.com/oauth/request_token";
+static const char twitter_access_token_uri[]   = "http://twitter.com/oauth/access_token";
+static const char twitter_authorize_uri[]      = "http://twitter.com/oauth/authorize?oauth_token=";
+static const char identica_request_token_uri[] = "http://identi.ca/api/oauth/request_token?oauth_callback=oob";
+static const char identica_access_token_uri[]  = "http://identi.ca/api/oauth/access_token";
+static const char identica_authorize_uri[]     = "http://identi.ca/api/oauth/authorize?oauth_token=";
+
+static const char user_uri[]     = "/user_timeline/";
+static const char update_uri[]   = "/update.xml";
+static const char public_uri[]   = "/public_timeline.xml";
+static const char friends_uri[]  = "/friends_timeline.xml";
+static const char mentions_uri[] = "/mentions.xml";
+static const char replies_uri[]  = "/replies.xml";
+static const char retweet_uri[]  = "/retweet/";
+static const char group_uri[]    = "/../statusnet/groups/timeline/";
 
 static CURL *curl_init(void)
 {
@@ -197,11 +283,23 @@ static CURL *curl_init(void)
 	return curl;
 }
 
-static void parse_statuses(xmlDocPtr doc, xmlNodePtr current)
+/* The final place data is sent to the screen/pty/tty */
+static void bti_output_line(struct session *session, xmlChar *user,
+			    xmlChar *id, xmlChar *created, xmlChar *text)
+{
+	if (session->verbose)
+		printf("[%s] {%s} (%.16s) %s\n", user, id, created, text);
+	else
+		printf("[%s] %s\n", user, text);
+}
+
+static void parse_statuses(struct session *session,
+			   xmlDocPtr doc, xmlNodePtr current)
 {
 	xmlChar *text = NULL;
 	xmlChar *user = NULL;
 	xmlChar *created = NULL;
+	xmlChar *id = NULL;
 	xmlNodePtr userinfo;
 
 	current = current->xmlChildrenNode;
@@ -211,6 +309,8 @@ static void parse_statuses(xmlDocPtr doc, xmlNodePtr current)
 				created = xmlNodeListGetString(doc, current->xmlChildrenNode, 1);
 			if (!xmlStrcmp(current->name, (const xmlChar *)"text"))
 				text = xmlNodeListGetString(doc, current->xmlChildrenNode, 1);
+			if (!xmlStrcmp(current->name, (const xmlChar *)"id"))
+				id = xmlNodeListGetString(doc, current->xmlChildrenNode, 1);
 			if (!xmlStrcmp(current->name, (const xmlChar *)"user")) {
 				userinfo = current->xmlChildrenNode;
 				while (userinfo != NULL) {
@@ -223,15 +323,17 @@ static void parse_statuses(xmlDocPtr doc, xmlNodePtr current)
 				}
 			}
 
-			if (user && text && created) {
-				printf("[%s] (%.16s) %s\n",
-					user, created, text);
+			if (user && text && created && id) {
+				bti_output_line(session, user, id,
+						created, text);
 				xmlFree(user);
 				xmlFree(text);
 				xmlFree(created);
+				xmlFree(id);
 				user = NULL;
 				text = NULL;
 				created = NULL;
+				id = NULL;
 			}
 		}
 		current = current->next;
@@ -240,7 +342,7 @@ static void parse_statuses(xmlDocPtr doc, xmlNodePtr current)
 	return;
 }
 
-static void parse_timeline(char *document)
+static void parse_timeline(char *document, struct session *session)
 {
 	xmlDocPtr doc;
 	xmlNodePtr current;
@@ -266,7 +368,7 @@ static void parse_timeline(char *document)
 	current = current->xmlChildrenNode;
 	while (current != NULL) {
 		if ((!xmlStrcmp(current->name, (const xmlChar *)"status")))
-			parse_statuses(doc, current);
+			parse_statuses(session, doc, current);
 		current = current->next;
 	}
 	xmlFreeDoc(doc);
@@ -295,293 +397,379 @@ static size_t curl_callback(void *buffer, size_t size, size_t nmemb,
 	memcpy(&curl_buf->data[curl_buf->length], (char *)buffer, buffer_size);
 	curl_buf->length += buffer_size;
 	if (curl_buf->action)
-		parse_timeline(curl_buf->data);
+		parse_timeline(curl_buf->data, curl_buf->session);
 
 	dbg("%s\n", curl_buf->data);
 
 	return buffer_size;
 }
 
+static int parse_osp_reply(const char *reply, char **token, char **secret)
+{
+	int rc;
+	int retval = 1;
+	char **rv = NULL;
+	rc = oauth_split_url_parameters(reply, &rv);
+	qsort(rv, rc, sizeof(char *), oauth_cmpstringp);
+	if (rc == 2 || rc == 4) {
+		if (!strncmp(rv[0], "oauth_token=", 11) &&
+		    !strncmp(rv[1], "oauth_token_secret=", 18)) {
+			if (token)
+				*token = strdup(&(rv[0][12]));
+			if (secret)
+				*secret = strdup(&(rv[1][19]));
+
+			retval = 0;
+		}
+	} else if (rc == 3) {
+		if (!strncmp(rv[1], "oauth_token=", 11) &&
+		    !strncmp(rv[2], "oauth_token_secret=", 18)) {
+			if (token)
+				*token = strdup(&(rv[1][12]));
+			if (secret)
+				*secret = strdup(&(rv[2][19]));
+
+			retval = 0;
+		}
+	}
+
+	dbg("token: %s\n", *token);
+	dbg("secret: %s\n", *secret);
+
+	if (rv)
+		free(rv);
+
+	return retval;
+}
+
+static int request_access_token(struct session *session)
+{
+	char *post_params = NULL;
+	char *request_url = NULL;
+	char *reply       = NULL;
+	char *at_key      = NULL;
+	char *at_secret   = NULL;
+	char *verifier    = NULL;
+	char at_uri[90];
+
+	if (!session)
+		return -EINVAL;
+
+	if (session->host == HOST_TWITTER)
+		request_url = oauth_sign_url2(
+				twitter_request_token_uri, NULL,
+				OA_HMAC, NULL, session->consumer_key,
+				session->consumer_secret, NULL, NULL);
+	else if (session->host == HOST_IDENTICA)
+		request_url = oauth_sign_url2(
+				identica_request_token_uri, NULL,
+				OA_HMAC, NULL, session->consumer_key,
+				session->consumer_secret, NULL, NULL);
+	reply = oauth_http_get(request_url, post_params);
+
+	if (request_url)
+		free(request_url);
+
+	if (post_params)
+		free(post_params);
+
+	if (!reply)
+		return 1;
+
+	if (parse_osp_reply(reply, &at_key, &at_secret))
+		return 1;
+
+	free(reply);
+
+	fprintf(stdout,
+		"Please open the following link in your browser, and "
+		"allow 'bti' to access your account. Then paste "
+		"back the provided PIN in here.\n");
+	if (session->host == HOST_TWITTER) {
+		fprintf(stdout, "%s%s\nPIN: ", twitter_authorize_uri, at_key);
+		verifier = session->readline(NULL);
+		sprintf(at_uri, "%s?oauth_verifier=%s",
+			twitter_access_token_uri, verifier);
+	} else if (session->host == HOST_IDENTICA) {
+		fprintf(stdout, "%s%s\nPIN: ", identica_authorize_uri, at_key);
+		verifier = session->readline(NULL);
+		sprintf(at_uri, "%s?oauth_verifier=%s",
+			identica_access_token_uri, verifier);
+	}
+	request_url = oauth_sign_url2(at_uri, NULL, OA_HMAC, NULL,
+				      session->consumer_key,
+				      session->consumer_secret,
+				      at_key, at_secret);
+	reply = oauth_http_get(request_url, post_params);
+
+	if (!reply)
+		return 1;
+
+	if (parse_osp_reply(reply, &at_key, &at_secret))
+		return 1;
+
+	free(reply);
+
+	fprintf(stdout,
+		"Please put these two lines in your bti "
+		"configuration file (~/.bti):\n"
+		"access_token_key=%s\n"
+		"access_token_secret=%s\n",
+		at_key, at_secret);
+
+	return 0;
+}
+
 static int send_request(struct session *session)
 {
+	char endpoint[500];
 	char user_password[500];
 	char data[500];
-	/* is there usernames longer than 22 chars? */
-	char user_url[70];
 	struct bti_curl_buffer *curl_buf;
 	CURL *curl = NULL;
 	CURLcode res;
 	struct curl_httppost *formpost = NULL;
 	struct curl_httppost *lastptr = NULL;
 	struct curl_slist *slist = NULL;
+	char *req_url = NULL;
+	char *reply = NULL;
+	char *postarg = NULL;
+	char *escaped_tweet = NULL;
+	int is_post = 0;
 
 	if (!session)
 		return -EINVAL;
 
-	curl_buf = bti_curl_buffer_alloc(session->action);
-	if (!curl_buf)
-		return -ENOMEM;
+	if (!session->hosturl)
+		session->hosturl = strdup(twitter_host);
 
-	curl = curl_init();
-	if (!curl)
-		return -EINVAL;
+	if (session->no_oauth || session->guest) {
+		curl_buf = bti_curl_buffer_alloc(session->action);
+		if (!curl_buf)
+			return -ENOMEM;
+		curl_buf->session = session;
 
-	switch (session->action) {
-	case ACTION_UPDATE:
-		snprintf(user_password, sizeof(user_password), "%s:%s",
-			 session->account, session->password);
-		snprintf(data, sizeof(data), "status=\"%s\"", session->tweet);
-		curl_formadd(&formpost, &lastptr,
-			     CURLFORM_COPYNAME, "status",
-			     CURLFORM_COPYCONTENTS, session->tweet,
-			     CURLFORM_END);
-
-		curl_formadd(&formpost, &lastptr,
-			     CURLFORM_COPYNAME, "source",
-			     CURLFORM_COPYCONTENTS, "bti",
-			     CURLFORM_END);
-
-		curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
-		slist = curl_slist_append(slist, "Expect:");
-		curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist);
-		switch (session->host) {
-		case HOST_TWITTER:
-			curl_easy_setopt(curl, CURLOPT_URL,
-					 twitter_update_url);
-			break;
-		case HOST_IDENTICA:
-			curl_easy_setopt(curl, CURLOPT_URL,
-					 identica_update_url);
-			break;
-		}
-		curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
+		curl = curl_init();
+		if (!curl)
+			return -EINVAL;
 
-		break;
-	case ACTION_FRIENDS:
-		snprintf(user_password, sizeof(user_password), "%s:%s",
-			 session->account, session->password);
-		switch (session->host) {
-		case HOST_TWITTER:
-			sprintf(user_url, "%s?page=%d", twitter_friends_url, session->page);
-			curl_easy_setopt(curl, CURLOPT_URL, user_url);
+		if (!session->hosturl)
+			session->hosturl = strdup(twitter_host);
+
+		switch (session->action) {
+		case ACTION_UPDATE:
+			snprintf(user_password, sizeof(user_password), "%s:%s",
+				 session->account, session->password);
+			snprintf(data, sizeof(data), "status=\"%s\"",
+				 session->tweet);
+			curl_formadd(&formpost, &lastptr,
+				     CURLFORM_COPYNAME, "status",
+				     CURLFORM_COPYCONTENTS, session->tweet,
+				     CURLFORM_END);
+
+			curl_formadd(&formpost, &lastptr,
+				     CURLFORM_COPYNAME, "source",
+				     CURLFORM_COPYCONTENTS, "bti",
+				     CURLFORM_END);
+
+			if (session->replyto)
+				curl_formadd(&formpost, &lastptr,
+					     CURLFORM_COPYNAME,
+					     "in_reply_to_status_id",
+					     CURLFORM_COPYCONTENTS,
+					     session->replyto,
+					     CURLFORM_END);
+
+			curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
+			slist = curl_slist_append(slist, "Expect:");
+			curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist);
+
+			sprintf(endpoint, "%s%s", session->hosturl, update_uri);
+			curl_easy_setopt(curl, CURLOPT_URL, endpoint);
+			curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 			break;
-		case HOST_IDENTICA:
-			sprintf(user_url, "%s?page=%d", identica_friends_url, session->page);
-			curl_easy_setopt(curl, CURLOPT_URL, user_url);
-			break;
-		}
-		curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 
-		break;
-	case ACTION_USER:
-		switch (session->host) {
-		case HOST_TWITTER:
-			sprintf(user_url, "%s%s.xml?page=%d", twitter_user_url, session->user, session->page);
-			curl_easy_setopt(curl, CURLOPT_URL, user_url);
+		case ACTION_FRIENDS:
+			snprintf(user_password, sizeof(user_password), "%s:%s",
+				 session->account, session->password);
+			sprintf(endpoint, "%s%s?page=%d", session->hosturl,
+					friends_uri, session->page);
+			curl_easy_setopt(curl, CURLOPT_URL, endpoint);
+			curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 			break;
-		case HOST_IDENTICA:
-			sprintf(user_url, "%s%s.xml?page=%d", identica_user_url, session->user, session->page);
-			curl_easy_setopt(curl, CURLOPT_URL, user_url);
+
+		case ACTION_USER:
+			sprintf(endpoint, "%s%s%s.xml?page=%d", session->hosturl,
+				user_uri, session->user, session->page);
+			curl_easy_setopt(curl, CURLOPT_URL, endpoint);
 			break;
-		}
 
-		break;
-	case ACTION_REPLIES:
-		snprintf(user_password, sizeof(user_password), "%s:%s",
-			 session->account, session->password);
-		switch (session->host) {
-		case HOST_TWITTER:
-			sprintf(user_url, "%s?page=%d", twitter_replies_url, session->page);
-			curl_easy_setopt(curl, CURLOPT_URL, user_url);
+		case ACTION_REPLIES:
+			snprintf(user_password, sizeof(user_password), "%s:%s",
+				 session->account, session->password);
+			sprintf(endpoint, "%s%s?page=%d", session->hosturl,
+				replies_uri, session->page);
+			curl_easy_setopt(curl, CURLOPT_URL, endpoint);
+			curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 			break;
-		case HOST_IDENTICA:
-			sprintf(user_url, "%s?page=%d", identica_replies_url, session->page);
-			curl_easy_setopt(curl, CURLOPT_URL, user_url);
+
+		case ACTION_PUBLIC:
+			sprintf(endpoint, "%s%s?page=%d", session->hosturl,
+				public_uri, session->page);
+			curl_easy_setopt(curl, CURLOPT_URL, endpoint);
 			break;
-		}
-		curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 
-		break;
-	case ACTION_PUBLIC:
-		switch (session->host) {
-		case HOST_TWITTER:
-			sprintf(user_url, "%s?page=%d", twitter_public_url, session->page);
-			curl_easy_setopt(curl, CURLOPT_URL, user_url);
+		case ACTION_GROUP:
+			sprintf(endpoint, "%s%s%s.xml?page=%d",
+				session->hosturl, group_uri, session->group,
+				session->page);
+			curl_easy_setopt(curl, CURLOPT_URL, endpoint);
 			break;
-		case HOST_IDENTICA:
-			sprintf(user_url, "%s?page=%d", identica_public_url, session->page);
-			curl_easy_setopt(curl, CURLOPT_URL, user_url);
+
+		default:
 			break;
 		}
 
-		break;
-	default:
-		break;
-	}
+		if (session->proxy)
+			curl_easy_setopt(curl, CURLOPT_PROXY, session->proxy);
+
+		if (debug)
+			curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+
+		dbg("user_password = %s\n", user_password);
+		dbg("data = %s\n", data);
+		dbg("proxy = %s\n", session->proxy);
+
+		curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
+		curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
+		if (!session->dry_run) {
+			res = curl_easy_perform(curl);
+			if (!session->background) {
+				xmlDocPtr doc;
+				xmlNodePtr current;
+
+				if (res) {
+					fprintf(stderr, "error(%d) trying to "
+						"perform operation\n", res);
+					return -EINVAL;
+				}
 
-	if (session->proxy)
-		curl_easy_setopt(curl, CURLOPT_PROXY, session->proxy);
+				doc = xmlReadMemory(curl_buf->data,
+						    curl_buf->length,
+						    "response.xml", NULL,
+						    XML_PARSE_NOERROR);
+				if (doc == NULL)
+					return -EINVAL;
+
+				current = xmlDocGetRootElement(doc);
+				if (current == NULL) {
+					fprintf(stderr, "empty document\n");
+					xmlFreeDoc(doc);
+					return -EINVAL;
+				}
 
-	if (debug)
-		curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
-
-	dbg("user_password = %s\n", user_password);
-	dbg("data = %s\n", data);
-	dbg("proxy = %s\n", session->proxy);
-
-	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
-	curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
-	if (!session->dry_run) {
-		res = curl_easy_perform(curl);
-		if (res && !session->bash) {
-			fprintf(stderr, "error(%d) trying to perform "
-				"operation\n", res);
-			return -EINVAL;
-		}
-	}
+				if (xmlStrcmp(current->name, (const xmlChar *)"status")) {
+					fprintf(stderr, "unexpected document type\n");
+					xmlFreeDoc(doc);
+					return -EINVAL;
+				}
 
-	curl_easy_cleanup(curl);
-	if (session->action == ACTION_UPDATE)
-		curl_formfree(formpost);
-	bti_curl_buffer_free(curl_buf);
-	return 0;
-}
+				xmlFreeDoc(doc);
+			}
+		}
 
-static void parse_configfile(struct session *session)
-{
-	FILE *config_file;
-	char *line = NULL;
-	size_t len = 0;
-	char *account = NULL;
-	char *password = NULL;
-	char *host = NULL;
-	char *proxy = NULL;
-	char *logfile = NULL;
-	char *action = NULL;
-	char *user = NULL;
-	char *file;
-	int shrink_urls = 0;
-
-	/* config file is ~/.bti  */
-	file = alloca(strlen(session->homedir) + 7);
-
-	sprintf(file, "%s/.bti", session->homedir);
-
-	config_file = fopen(file, "r");
-
-	/* No error if file does not exist or is unreadable.  */
-	if (config_file == NULL)
-		return;
+		curl_easy_cleanup(curl);
+		if (session->action == ACTION_UPDATE)
+			curl_formfree(formpost);
+		bti_curl_buffer_free(curl_buf);
+	} else {
+		switch (session->action) {
+		case ACTION_UPDATE:
+			escaped_tweet = oauth_url_escape(session->tweet);
+			if (session->replyto) {
+				sprintf(endpoint,
+					"%s%s?status=%s&in_reply_to_status_id=%s",
+					session->hosturl, update_uri,
+					escaped_tweet, session->replyto);
+			} else {
+				sprintf(endpoint, "%s%s?status=%s",
+					session->hosturl, update_uri,
+					escaped_tweet);
+			}
 
-	do {
-		ssize_t n = getline(&line, &len, config_file);
-		if (n < 0)
+			is_post = 1;
 			break;
-		if (line[n - 1] == '\n')
-			line[n - 1] = '\0';
-		/* Parse file.  Format is the usual value pairs:
-		   account=name
-		   passwort=value
-		   # is a comment character
-		*/
-		*strchrnul(line, '#') = '\0';
-		char *c = line;
-		while (isspace(*c))
-			c++;
-		/* Ignore blank lines.  */
-		if (c[0] == '\0')
-			continue;
+		case ACTION_USER:
+			sprintf(endpoint, "%s%s%s.xml?page=%d",
+				session->hosturl, user_uri, session->user,
+				session->page);
+			break;
+		case ACTION_REPLIES:
+			sprintf(endpoint, "%s%s?page=%d", session->hosturl,
+				mentions_uri, session->page);
+			break;
+		case ACTION_PUBLIC:
+			sprintf(endpoint, "%s%s?page=%d", session->hosturl,
+				public_uri, session->page);
+			break;
+		case ACTION_GROUP:
+			sprintf(endpoint, "%s%s%s.xml?page=%d",
+				session->hosturl, group_uri, session->group,
+				session->page);
+			break;
+		case ACTION_FRIENDS:
+			sprintf(endpoint, "%s%s?page=%d", session->hosturl,
+				friends_uri, session->page);
+			break;
+		case ACTION_RETWEET:
+			sprintf(endpoint, "%s%s%s.xml", session->hosturl,
+				retweet_uri, session->retweet);
+			is_post = 1;
+			break;
+		default:
+			break;
+		}
+
+		dbg("%s\n", endpoint);
+		if (!session->dry_run) {
+			if (is_post) {
+				req_url = oauth_sign_url2(endpoint, &postarg, OA_HMAC,
+							  NULL, session->consumer_key,
+							  session->consumer_secret,
+							  session->access_token_key,
+							  session->access_token_secret);
+				reply = oauth_http_post(req_url, postarg);
+			} else {
+				req_url = oauth_sign_url2(endpoint, NULL, OA_HMAC, NULL,
+							  session->consumer_key,
+							  session->consumer_secret,
+							  session->access_token_key,
+							  session->access_token_secret);
+				reply = oauth_http_get(req_url, postarg);
+			}
 
-		if (!strncasecmp(c, "account", 7) && (c[7] == '=')) {
-			c += 8;
-			if (c[0] != '\0')
-				account = strdup(c);
-		} else if (!strncasecmp(c, "password", 8) &&
-			   (c[8] == '=')) {
-			c += 9;
-			if (c[0] != '\0')
-				password = strdup(c);
-		} else if (!strncasecmp(c, "host", 4) &&
-			   (c[4] == '=')) {
-			c += 5;
-			if (c[0] != '\0')
-				host = strdup(c);
-		} else if (!strncasecmp(c, "proxy", 5) &&
-			   (c[5] == '=')) {
-			c += 6;
-			if (c[0] != '\0')
-				proxy = strdup(c);
-		} else if (!strncasecmp(c, "logfile", 7) &&
-			   (c[7] == '=')) {
-			c += 8;
-			if (c[0] != '\0')
-				logfile = strdup(c);
-		} else if (!strncasecmp(c, "action", 6) &&
-			   (c[6] == '=')) {
-			c += 7;
-			if (c[0] != '\0')
-				action = strdup(c);
-		} else if (!strncasecmp(c, "user", 4) &&
-				(c[4] == '=')) {
-			c += 5;
-			if (c[0] != '\0')
-				user = strdup(c);
-		} else if (!strncasecmp(c, "shrink-urls", 11) &&
-				(c[11] == '=')) {
-			c += 12;
-			if (!strncasecmp(c, "true", 4) ||
-					!strncasecmp(c, "yes", 3))
-				shrink_urls = 1;
+			dbg("%s\n", req_url);
+			dbg("%s\n", reply);
+			if (req_url)
+				free(req_url);
+		}
+
+		if (!reply) {
+			fprintf(stderr, "Error retrieving from URL (%s)\n", endpoint);
+			return -EIO;
 		}
-	} while (!feof(config_file));
-
-	if (password)
-		session->password = password;
-	if (account)
-		session->account = account;
-	if (host) {
-		if (strcasecmp(host, "twitter") == 0)
-			session->host = HOST_TWITTER;
-		if (strcasecmp(host, "identica") == 0)
-			session->host = HOST_IDENTICA;
-		free(host);
-	}
-	if (proxy) {
-		if (session->proxy)
-			free(session->proxy);
-		session->proxy = proxy;
-	}
-	if (logfile)
-		session->logfile = logfile;
-	if (action) {
-		if (strcasecmp(action, "update") == 0)
-			session->action = ACTION_UPDATE;
-		else if (strcasecmp(action, "friends") == 0)
-			session->action = ACTION_FRIENDS;
-		else if (strcasecmp(action, "user") == 0)
-			session->action = ACTION_USER;
-		else if (strcasecmp(action, "replies") == 0)
-			session->action = ACTION_REPLIES;
-		else if (strcasecmp(action, "public") == 0)
-			session->action = ACTION_PUBLIC;
-		else
-			session->action = ACTION_UNKNOWN;
-		free(action);
-	}
-	if (user)
-		session->user = user;
-	session->shrink_urls = shrink_urls;
 
-	/* Free buffer and close file.  */
-	free(line);
-	fclose(config_file);
+		if ((session->action != ACTION_UPDATE) &&
+				(session->action != ACTION_RETWEET))
+			parse_timeline(reply, session);
+	}
+	return 0;
 }
 
 static void log_session(struct session *session, int retval)
 {
 	FILE *log_file;
 	char *filename;
-	char *host;
 
 	/* Only log something if we have a log file set */
 	if (!session->logfile)
@@ -595,42 +783,36 @@ static void log_session(struct session *session, int retval)
 	log_file = fopen(filename, "a+");
 	if (log_file == NULL)
 		return;
-	switch (session->host) {
-	case HOST_TWITTER:
-		host = "twitter";
-		break;
-	case HOST_IDENTICA:
-		host = "identi.ca";
-		break;
-	default:
-		host = "unknown";
-		break;
-	}
 
 	switch (session->action) {
 	case ACTION_UPDATE:
 		if (retval)
 			fprintf(log_file, "%s: host=%s tweet failed\n",
-				session->time, host);
+				session->time, session->hostname);
 		else
 			fprintf(log_file, "%s: host=%s tweet=%s\n",
-				session->time, host, session->tweet);
+				session->time, session->hostname,
+				session->tweet);
 		break;
 	case ACTION_FRIENDS:
 		fprintf(log_file, "%s: host=%s retrieving friends timeline\n",
-			session->time, host);
+			session->time, session->hostname);
 		break;
 	case ACTION_USER:
 		fprintf(log_file, "%s: host=%s retrieving %s's timeline\n",
-			session->time, host, session->user);
+			session->time, session->hostname, session->user);
 		break;
 	case ACTION_REPLIES:
 		fprintf(log_file, "%s: host=%s retrieving replies\n",
-			session->time, host);
+			session->time, session->hostname);
 		break;
 	case ACTION_PUBLIC:
 		fprintf(log_file, "%s: host=%s retrieving public timeline\n",
-			session->time, host);
+			session->time, session->hostname);
+		break;
+	case ACTION_GROUP:
+		fprintf(log_file, "%s: host=%s retrieving group timeline\n",
+			session->time, session->hostname);
 		break;
 	default:
 		break;
@@ -651,10 +833,37 @@ static char *get_string_from_stdin(void)
 	if (!fgets(string, 999, stdin))
 		return NULL;
 	temp = strchr(string, '\n');
-	*temp = '\0';
+	if (temp)
+		*temp = '\0';
 	return string;
 }
 
+static void read_password(char *buf, size_t len, char *host)
+{
+	char pwd[80];
+	int retval;
+	struct termios old;
+	struct termios tp;
+
+	tcgetattr(0, &tp);
+	old = tp;
+
+	tp.c_lflag &= (~ECHO);
+	tcsetattr(0, TCSANOW, &tp);
+
+	fprintf(stdout, "Enter password for %s: ", host);
+	fflush(stdout);
+	tcflow(0, TCOOFF);
+	retval = scanf("%79s", pwd);
+	tcflow(0, TCOON);
+	fprintf(stdout, "\n");
+
+	tcsetattr(0, TCSANOW, &old);
+
+	strncpy(buf, pwd, len);
+	buf[len-1] = '\0';
+}
+
 static int find_urls(const char *tweet, int **pranges)
 {
 	/*
@@ -921,24 +1130,31 @@ int main(int argc, char *argv[], char *envp[])
 {
 	static const struct option options[] = {
 		{ "debug", 0, NULL, 'd' },
+		{ "verbose", 0, NULL, 'V' },
 		{ "account", 1, NULL, 'a' },
 		{ "password", 1, NULL, 'p' },
 		{ "host", 1, NULL, 'H' },
 		{ "proxy", 1, NULL, 'P' },
 		{ "action", 1, NULL, 'A' },
 		{ "user", 1, NULL, 'u' },
+		{ "group", 1, NULL, 'G' },
 		{ "logfile", 1, NULL, 'L' },
 		{ "shrink-urls", 0, NULL, 's' },
 		{ "help", 0, NULL, 'h' },
 		{ "bash", 0, NULL, 'b' },
+		{ "background", 0, NULL, 'B' },
 		{ "dry-run", 0, NULL, 'n' },
 		{ "page", 1, NULL, 'g' },
 		{ "version", 0, NULL, 'v' },
+		{ "config", 1, NULL, 'c' },
+		{ "replyto", 1, NULL, 'r' },
+		{ "retweet", 1, NULL, 'w' },
 		{ }
 	};
 	struct session *session;
 	pid_t child;
 	char *tweet;
+	static char password[80];
 	int retval = 0;
 	int option;
 	char *http_proxy;
@@ -946,7 +1162,6 @@ int main(int argc, char *argv[], char *envp[])
 	int page_nr;
 
 	debug = 0;
-	rl_bind_key('\t', rl_insert);
 
 	session = session_alloc();
 	if (!session) {
@@ -959,9 +1174,12 @@ int main(int argc, char *argv[], char *envp[])
 	session->time = strdup(ctime(&t));
 	session->time[strlen(session->time)-1] = 0x00;
 
+	/* Get the home directory so we can try to find a config file */
 	session->homedir = strdup(getenv("HOME"));
 
-	curl_global_init(CURL_GLOBAL_ALL);
+	/* set up a default config file location (traditionally ~/.bti) */
+	session->configfile = zalloc(strlen(session->homedir) + 7);
+	sprintf(session->configfile, "%s/.bti", session->homedir);
 
 	/* Set environment variables first, before reading command line options
 	 * or config file values. */
@@ -973,10 +1191,11 @@ int main(int argc, char *argv[], char *envp[])
 		dbg("http_proxy = %s\n", session->proxy);
 	}
 
-	parse_configfile(session);
+	bti_parse_configfile(session);
 
 	while (1) {
-		option = getopt_long_only(argc, argv, "dqe:p:P:H:a:A:u:hg:sn",
+		option = getopt_long_only(argc, argv,
+					  "dp:P:H:a:A:u:c:hg:G:sr:nVvw:",
 					  options, NULL);
 		if (option == -1)
 			break;
@@ -984,6 +1203,9 @@ int main(int argc, char *argv[], char *envp[])
 		case 'd':
 			debug = 1;
 			break;
+		case 'V':
+			session->verbose = 1;
+			break;
 		case 'a':
 			if (session->account)
 				free(session->account);
@@ -995,6 +1217,14 @@ int main(int argc, char *argv[], char *envp[])
 			dbg("page = %d\n", page_nr);
 			session->page = page_nr;
 			break;
+		case 'r':
+			session->replyto = strdup(optarg);
+			dbg("in_reply_to_status_id = %s\n", session->replyto);
+			break;
+		case 'w':
+			session->retweet = strdup(optarg);
+			dbg("Retweet ID = %s\n", session->retweet);
+			break;
 		case 'p':
 			if (session->password)
 				free(session->password);
@@ -1018,6 +1248,10 @@ int main(int argc, char *argv[], char *envp[])
 				session->action = ACTION_REPLIES;
 			else if (strcasecmp(optarg, "public") == 0)
 				session->action = ACTION_PUBLIC;
+			else if (strcasecmp(optarg, "group") == 0)
+				session->action = ACTION_GROUP;
+			else if (strcasecmp(optarg, "retweet") == 0)
+				session->action = ACTION_RETWEET;
 			else
 				session->action = ACTION_UNKNOWN;
 			dbg("action = %d\n", session->action);
@@ -1028,6 +1262,13 @@ int main(int argc, char *argv[], char *envp[])
 			session->user = strdup(optarg);
 			dbg("user = %s\n", session->user);
 			break;
+
+		case 'G':
+			if (session->group)
+				free(session->group);
+			session->group = strdup(optarg);
+			dbg("group = %s\n", session->group);
+			break;
 		case 'L':
 			if (session->logfile)
 				free(session->logfile);
@@ -1038,14 +1279,43 @@ int main(int argc, char *argv[], char *envp[])
 			session->shrink_urls = 1;
 			break;
 		case 'H':
-			if (strcasecmp(optarg, "twitter") == 0)
+			if (session->hosturl)
+				free(session->hosturl);
+			if (session->hostname)
+				free(session->hostname);
+			if (strcasecmp(optarg, "twitter") == 0) {
 				session->host = HOST_TWITTER;
-			if (strcasecmp(optarg, "identica") == 0)
+				session->hosturl = strdup(twitter_host);
+				session->hostname = strdup(twitter_name);
+			} else if (strcasecmp(optarg, "identica") == 0) {
 				session->host = HOST_IDENTICA;
+				session->hosturl = strdup(identica_host);
+				session->hostname = strdup(identica_name);
+			} else {
+				session->host = HOST_CUSTOM;
+				session->hosturl = strdup(optarg);
+				session->hostname = strdup(optarg);
+			}
 			dbg("host = %d\n", session->host);
 			break;
 		case 'b':
 			session->bash = 1;
+			/* fall-through intended */
+		case 'B':
+			session->background = 1;
+			break;
+		case 'c':
+			if (session->configfile)
+				free(session->configfile);
+			session->configfile = strdup(optarg);
+			dbg("configfile = %s\n", session->configfile);
+
+			/*
+			 * read the config file now.  Yes, this could override
+			 * previously set options from the command line, but
+			 * the user asked for it...
+			 */
+			bti_parse_configfile(session);
 			break;
 		case 'h':
 			display_help();
@@ -1062,6 +1332,7 @@ int main(int argc, char *argv[], char *envp[])
 		}
 	}
 
+	session_readline_init(session);
 	/*
 	 * Show the version to make it easier to determine what
 	 * is going on here
@@ -1069,28 +1340,86 @@ int main(int argc, char *argv[], char *envp[])
 	if (debug)
 		display_version();
 
+	if (session->host == HOST_TWITTER) {
+		if (!session->consumer_key || !session->consumer_secret) {
+			if (session->action == ACTION_USER ||
+					session->action == ACTION_PUBLIC) {
+				/*
+				 * Some actions may still work without
+				 * authentication
+				 */
+				session->guest = 1;
+			} else {
+				fprintf(stderr,
+						"Twitter no longer supports HTTP basic authentication.\n"
+						"Both consumer key, and consumer secret are required"
+						" for bti in order to behave as an OAuth consumer.\n");
+				goto exit;
+			}
+		}
+		if (session->action == ACTION_GROUP) {
+			fprintf(stderr, "Groups only work in Identi.ca.\n");
+			goto exit;
+		}
+	} else {
+		if (!session->consumer_key || !session->consumer_secret)
+			session->no_oauth = 1;
+	}
+
+	if (session->no_oauth) {
+		if (!session->account) {
+			fprintf(stdout, "Enter account for %s: ",
+				session->hostname);
+			session->account = session->readline(NULL);
+		}
+		if (!session->password) {
+			read_password(password, sizeof(password),
+				      session->hostname);
+			session->password = strdup(password);
+		}
+	} else if (!session->guest) {
+		if (!session->access_token_key ||
+		    !session->access_token_secret) {
+			request_access_token(session);
+			goto exit;
+		}
+	}
+
 	if (session->action == ACTION_UNKNOWN) {
-		fprintf(stderr, "Unknown action, valid actions are:\n");
-		fprintf(stderr, "'update', 'friends', 'public', "
-			"'replies' or 'user'.\n");
+		fprintf(stderr, "Unknown action, valid actions are:\n"
+			"'update', 'friends', 'public', 'replies', 'group' or 'user'.\n");
 		goto exit;
 	}
 
-	if (!session->account) {
-		fprintf(stdout, "Enter twitter account: ");
-		session->account = readline(NULL);
+	if (session->action == ACTION_GROUP && !session->group) {
+		fprintf(stdout, "Enter group name: ");
+		session->group = session->readline(NULL);
 	}
 
-	if (!session->password) {
-		fprintf(stdout, "Enter twitter password: ");
-		session->password = readline(NULL);
+	if (session->action == ACTION_RETWEET) {
+		if (!session->retweet) {
+			char *rtid;
+
+			fprintf(stdout, "Status ID to retweet: ");
+			rtid = get_string_from_stdin();
+			session->retweet = zalloc(strlen(rtid) + 10);
+			sprintf(session->retweet, "%s", rtid);
+			free(rtid);
+		}
+
+		if (!session->retweet || strlen(session->retweet) == 0) {
+			dbg("no retweet?\n");
+			return -1;
+		}
+
+		dbg("retweet ID = %s\n", session->retweet);
 	}
 
 	if (session->action == ACTION_UPDATE) {
-		if (session->bash)
+		if (session->background || !session->interactive)
 			tweet = get_string_from_stdin();
 		else
-			tweet = readline("tweet: ");
+			tweet = session->readline("tweet: ");
 		if (!tweet || strlen(tweet) == 0) {
 			dbg("no tweet?\n");
 			return -1;
@@ -1101,7 +1430,8 @@ int main(int argc, char *argv[], char *envp[])
 
 		session->tweet = zalloc(strlen(tweet) + 10);
 		if (session->bash)
-			sprintf(session->tweet, "%c %s", getuid() ? '$' : '#', tweet);
+			sprintf(session->tweet, "%c %s",
+				getuid() ? '$' : '#', tweet);
 		else
 			sprintf(session->tweet, "%s", tweet);
 
@@ -1109,20 +1439,16 @@ int main(int argc, char *argv[], char *envp[])
 		dbg("tweet = %s\n", session->tweet);
 	}
 
-	if (!session->user)
-		session->user = strdup(session->account);
-
 	if (session->page == 0)
 		session->page = 1;
-	dbg("account = %s\n", session->account);
-	dbg("password = %s\n", session->password);
+	dbg("config file = %s\n", session->configfile);
 	dbg("host = %d\n", session->host);
 	dbg("action = %d\n", session->action);
 
 	/* fork ourself so that the main shell can get on
 	 * with it's life as we try to connect and handle everything
 	 */
-	if (session->bash) {
+	if (session->background) {
 		child = fork();
 		if (child) {
 			dbg("child is %d\n", child);
@@ -1131,11 +1457,12 @@ int main(int argc, char *argv[], char *envp[])
 	}
 
 	retval = send_request(session);
-	if (retval && !session->bash)
+	if (retval && !session->background)
 		fprintf(stderr, "operation failed\n");
 
 	log_session(session, retval);
 exit:
+	session_readline_cleanup(session);
 	session_free(session);
 	return retval;;
 }