OAuth for both twitter, and identi.ca

[gregoa/bti.git] / bti.c

diff --git a/bti.c b/bti.c
index c0c580443ba16e2177b391706ac29c38261da023..a8fb97b5f4d3738201fa4a040046d3df759558de 100644 (file)
--- a/bti.c
+++ b/bti.c
@@ -32,13 +32,13 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/wait.h>

-#include <curl/curl.h>

 #include <libxml/xmlmemory.h>
 #include <libxml/parser.h>
 #include <libxml/tree.h>
 #include <pcre.h>
 #include <termios.h>
 #include <dlfcn.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>

 
 
 #define zalloc(size)   calloc(size, 1)
 
 
 #define zalloc(size)   calloc(size, 1)


@@ -71,8 +71,10 @@ enum action {
 };
 
 struct session {
 };
 
 struct session {

-       char *password;
-       char *account;
+       char *consumer_key;
+       char *consumer_secret;
+       char *access_token_key;
+       char *access_token_secret;

        char *tweet;
        char *proxy;
        char *time;
        char *tweet;
        char *proxy;
        char *time;


@@ -82,6 +84,7 @@ struct session {
        char *group;
        char *hosturl;
        char *hostname;
        char *group;
        char *hosturl;
        char *hostname;

+       char *configfile;

        int bash;
        int interactive;
        int shrink_urls;
        int bash;
        int interactive;
        int shrink_urls;


@@ -93,12 +96,6 @@ struct session {
        char *(*readline)(const char *);
 };
 
        char *(*readline)(const char *);
 };
 

-struct bti_curl_buffer {
-       char *data;
-       enum action action;
-       int length;
-};
-

 static void display_help(void)
 {
        fprintf(stdout, "bti - send tweet to twitter or identi.ca\n");
 static void display_help(void)
 {
        fprintf(stdout, "bti - send tweet to twitter or identi.ca\n");


@@ -106,8 +103,6 @@ static void display_help(void)
        fprintf(stdout, "Usage:\n");
        fprintf(stdout, "  bti [options]\n");
        fprintf(stdout, "options are:\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', "
                "'group' or 'user')\n");
        fprintf(stdout, "  --action action\n");
        fprintf(stdout, "    ('update', 'friends', 'public', 'replies', "
                "'group' or 'user')\n");


@@ -116,6 +111,7 @@ static void display_help(void)
        fprintf(stdout, "  --proxy PROXY:PORT\n");
        fprintf(stdout, "  --host HOST\n");
        fprintf(stdout, "  --logfile logfile\n");
        fprintf(stdout, "  --proxy PROXY:PORT\n");
        fprintf(stdout, "  --host HOST\n");
        fprintf(stdout, "  --logfile logfile\n");

+       fprintf(stdout, "  --config configfile\n");

        fprintf(stdout, "  --shrink-urls\n");
        fprintf(stdout, "  --page PAGENUMBER\n");
        fprintf(stdout, "  --bash\n");
        fprintf(stdout, "  --shrink-urls\n");
        fprintf(stdout, "  --page PAGENUMBER\n");
        fprintf(stdout, "  --bash\n");


@@ -190,7 +186,8 @@ static void session_readline_init(struct session *session)
                        *next++ = 0;
                if (*cp == 0)
                        continue;
                        *next++ = 0;
                if (*cp == 0)
                        continue;

-               if ((handle = dlopen(cp, RTLD_NOW))) {
+               handle = dlopen(cp, RTLD_NOW);
+               if (handle) {

                        dbg("Using %s for readline library\n", cp);
                        break;
                }
                        dbg("Using %s for readline library\n", cp);
                        break;
                }


@@ -233,7 +230,6 @@ static struct session *session_alloc(void)
        session = zalloc(sizeof(*session));
        if (!session)
                return NULL;
        session = zalloc(sizeof(*session));
        if (!session)
                return NULL;

-       session_readline_init(session);

        return session;
 }
 
        return session;
 }
 


@@ -241,9 +237,10 @@ static void session_free(struct session *session)
 {
        if (!session)
                return;
 {
        if (!session)
                return;

-       session_readline_cleanup(session);
-       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->tweet);
        free(session->proxy);
        free(session->time);


@@ -252,63 +249,28 @@ static void session_free(struct session *session)
        free(session->group);
        free(session->hosturl);
        free(session->hostname);
        free(session->group);
        free(session->hosturl);
        free(session->hostname);

+       free(session->configfile);

        free(session);
 }
 
        free(session);
 }
 

-static struct bti_curl_buffer *bti_curl_buffer_alloc(enum action action)
-{
-       struct bti_curl_buffer *buffer;
-
-       buffer = zalloc(sizeof(*buffer));
-       if (!buffer)
-               return NULL;
-
-       /* start out with a data buffer of 1 byte to
-        * make the buffer fill logic simpler */
-       buffer->data = zalloc(1);
-       if (!buffer->data) {
-               free(buffer);
-               return NULL;
-       }
-       buffer->length = 0;
-       buffer->action = action;
-       return buffer;
-}
-
-static void bti_curl_buffer_free(struct bti_curl_buffer *buffer)
-{
-       if (!buffer)
-               return;
-       free(buffer->data);
-       free(buffer);
-}
-
-static const char *twitter_host  = "https://twitter.com/statuses";
+static const char *twitter_host  = "http://api.twitter.com/1/statuses";

 static const char *identica_host = "https://identi.ca/api/statuses";
 static const char *twitter_name  = "twitter";
 static const char *identica_name = "identi.ca";
 
 static const char *identica_host = "https://identi.ca/api/statuses";
 static const char *twitter_name  = "twitter";
 static 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";
+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 *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 *replies_uri = "/replies.xml";
-static const char *group_uri = "/../laconica/groups/timeline/";
-
-static CURL *curl_init(void)
-{
-       CURL *curl;
-
-       curl = curl_easy_init();
-       if (!curl) {
-               fprintf(stderr, "Can not init CURL!\n");
-               return NULL;
-       }
-       /* some ssl sanity checks on the connection we are making */
-       curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
-       curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
-       return curl;
-}
+static const char *mentions_uri = "/mentions.xml";
+//static const char *group_uri = "/../laconica/groups/timeline/";

 
 static void parse_statuses(xmlDocPtr doc, xmlNodePtr current)
 {
 
 static void parse_statuses(xmlDocPtr doc, xmlNodePtr current)
 {


@@ -391,149 +353,169 @@ static void parse_timeline(char *document)
        return;
 }
 
        return;
 }
 

-static size_t curl_callback(void *buffer, size_t size, size_t nmemb,
-                           void *userp)
+static int parse_osp_reply(const char *reply, char **token, char **secret)

 {
 {

-       struct bti_curl_buffer *curl_buf = userp;
-       size_t buffer_size = size * nmemb;
-       char *temp;
+       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;
+               }
+       }
+
+       if (rv)
+               free(rv);
+
+       return retval;
+}
+       

 
 

-       if ((!buffer) || (!buffer_size) || (!curl_buf))
+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;
 
                return -EINVAL;
 

-       /* add to the data we already have */
-       temp = zalloc(curl_buf->length + buffer_size + 1);
-       if (!temp)
-               return -ENOMEM;
+       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 ");
+       fprintf(stdout, "allow 'bti' to access your account. Then paste ");
+       fprintf(stdout, "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;

 
 

-       memcpy(temp, curl_buf->data, curl_buf->length);
-       free(curl_buf->data);
-       curl_buf->data = temp;
-       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);
+       if (parse_osp_reply(reply, &at_key, &at_secret))
+               return 1;

 
 

-       dbg("%s\n", curl_buf->data);
+       free(reply);

 
 

-       return buffer_size;
+       fprintf(stdout, "Please put these two lines in your bti configuration ");
+       fprintf(stdout, "file (~/.bti):\n");
+       fprintf(stdout, "access_token_key=%s\n", at_key);
+       fprintf(stdout, "access_token_secret=%s\n", at_secret);
+
+       return 0;

 }
 
 static int send_request(struct session *session)
 {
 }
 
 static int send_request(struct session *session)
 {

-       char endpoint[100];
-       char user_password[500];
-       char data[500];
-       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 endpoint[500];
+       char *req_url = NULL;
+       char *reply = NULL;
+       char *postarg = NULL;
+       int is_post = 0;

 
        if (!session)
                return -EINVAL;
 
 
        if (!session)
                return -EINVAL;
 

-       curl_buf = bti_curl_buffer_alloc(session->action);
-       if (!curl_buf)
-               return -ENOMEM;
-
-       curl = curl_init();
-       if (!curl)
-               return -EINVAL;
-

        if (!session->hosturl)
                session->hosturl = strdup(twitter_host);
 
        switch (session->action) {
        case ACTION_UPDATE:
        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);
-
-               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 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);
-
+               sprintf(endpoint, "%s%s?status=%s", session->hosturl, update_uri, session->tweet);
+               is_post = 1;

                break;
        case ACTION_USER:
                break;
        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);
-
+               sprintf(endpoint, "%s%s", session->hosturl, user_uri);

                break;
        case ACTION_REPLIES:
                break;
        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);
-
+               sprintf(endpoint, "%s%s", session->hosturl, mentions_uri);

                break;
        case ACTION_PUBLIC:
                break;
        case ACTION_PUBLIC:

-               sprintf(endpoint, "%s%s?page=%d", session->hosturl, public_uri,
-                       session->page);
-               curl_easy_setopt(curl, CURLOPT_URL, endpoint);
-
+               sprintf(endpoint, "%s%s", session->hosturl, public_uri);

                break;
        case ACTION_GROUP:
                break;
        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);
-
+       case ACTION_FRIENDS:
+               sprintf(endpoint, "%s%s", session->hosturl, friends_uri);

                break;
        default:
                break;
        }
                break;
        default:
                break;
        }

+       
+       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 (session->proxy)
-               curl_easy_setopt(curl, CURLOPT_PROXY, session->proxy);
+       if (req_url)
+               free(req_url);

 
 

-       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;
-               }
-       }
+       parse_timeline(reply);

 
 

-       curl_easy_cleanup(curl);
-       if (session->action == ACTION_UPDATE)
-               curl_formfree(formpost);
-       bti_curl_buffer_free(curl_buf);

        return 0;
 }
 
        return 0;
 }
 


@@ -542,22 +524,18 @@ static void parse_configfile(struct session *session)
        FILE *config_file;
        char *line = NULL;
        size_t len = 0;
        FILE *config_file;
        char *line = NULL;
        size_t len = 0;

-       char *account = NULL;
-       char *password = NULL;
+       char *consumer_key = NULL;
+       char *consumer_secret = NULL;
+       char *access_token_key = NULL;
+       char *access_token_secret = NULL;

        char *host = NULL;
        char *proxy = NULL;
        char *logfile = NULL;
        char *action = NULL;
        char *user = NULL;
        char *host = NULL;
        char *proxy = NULL;
        char *logfile = NULL;
        char *action = NULL;
        char *user = NULL;

-       char *file;

        int shrink_urls = 0;
 
        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");
+       config_file = fopen(session->configfile, "r");

 
        /* No error if file does not exist or is unreadable.  */
        if (config_file == NULL)
 
        /* No error if file does not exist or is unreadable.  */
        if (config_file == NULL)


@@ -582,15 +560,26 @@ static void parse_configfile(struct session *session)
                if (c[0] == '\0')
                        continue;
 
                if (c[0] == '\0')
                        continue;
 

-               if (!strncasecmp(c, "account", 7) && (c[7] == '=')) {
-                       c += 8;
+               if (!strncasecmp(c, "consumer_key", 12) &&
+                          (c[12] == '=')) {
+                       c += 13;

                        if (c[0] != '\0')
                        if (c[0] != '\0')

-                               account = strdup(c);
-               } else if (!strncasecmp(c, "password", 8) &&
-                          (c[8] == '=')) {
-                       c += 9;
+                               consumer_key = strdup(c);
+               } else if (!strncasecmp(c, "consumer_secret", 15) &&
+                          (c[15] == '=')) {
+                       c += 16;

                        if (c[0] != '\0')
                        if (c[0] != '\0')

-                               password = strdup(c);
+                               consumer_secret = strdup(c);
+               } else if (!strncasecmp(c, "access_token_key", 16) &&
+                          (c[16] == '=')) {
+                       c += 17;
+                       if (c[0] != '\0')
+                               access_token_key = strdup(c);
+               } else if (!strncasecmp(c, "access_token_secret", 19) &&
+                          (c[19] == '=')) {
+                       c += 20;
+                       if (c[0] != '\0')
+                               access_token_secret = strdup(c);

                } else if (!strncasecmp(c, "host", 4) &&
                           (c[4] == '=')) {
                        c += 5;
                } else if (!strncasecmp(c, "host", 4) &&
                           (c[4] == '=')) {
                        c += 5;


@@ -631,10 +620,14 @@ static void parse_configfile(struct session *session)
                }
        } while (!feof(config_file));
 
                }
        } while (!feof(config_file));
 

-       if (password)
-               session->password = password;
-       if (account)
-               session->account = account;
+       if (consumer_key)
+               session->consumer_key = consumer_key;
+       if (consumer_secret)
+               session->consumer_secret = consumer_secret;
+       if (access_token_key)
+               session->access_token_key = access_token_key;
+       if (access_token_secret)
+               session->access_token_secret = access_token_secret;

        if (host) {
                if (strcasecmp(host, "twitter") == 0) {
                        session->host = HOST_TWITTER;
        if (host) {
                if (strcasecmp(host, "twitter") == 0) {
                        session->host = HOST_TWITTER;


@@ -709,7 +702,8 @@ static void log_session(struct session *session, int retval)
                                session->time, session->hostname);
                else
                        fprintf(log_file, "%s: host=%s tweet=%s\n",
                                session->time, session->hostname);
                else
                        fprintf(log_file, "%s: host=%s tweet=%s\n",

-                               session->time, session->hostname, session->tweet);
+                               session->time, session->hostname,
+                               session->tweet);

                break;
        case ACTION_FRIENDS:
                fprintf(log_file, "%s: host=%s retrieving friends timeline\n",
                break;
        case ACTION_FRIENDS:
                fprintf(log_file, "%s: host=%s retrieving friends timeline\n",


@@ -755,32 +749,6 @@ static char *get_string_from_stdin(void)
        return string;
 }
 
        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)
 {
        /*
 static int find_urls(const char *tweet, int **pranges)
 {
        /*


@@ -1048,8 +1016,6 @@ int main(int argc, char *argv[], char *envp[])
        static const struct option options[] = {
                { "debug", 0, NULL, 'd' },
                { "verbose", 0, NULL, 'V' },
        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' },
                { "host", 1, NULL, 'H' },
                { "proxy", 1, NULL, 'P' },
                { "action", 1, NULL, 'A' },


@@ -1062,12 +1028,12 @@ int main(int argc, char *argv[], char *envp[])
                { "dry-run", 0, NULL, 'n' },
                { "page", 1, NULL, 'g' },
                { "version", 0, NULL, 'v' },
                { "dry-run", 0, NULL, 'n' },
                { "page", 1, NULL, 'g' },
                { "version", 0, NULL, 'v' },

+               { "config", 1, NULL, 'c' },

                { }
        };
        struct session *session;
        pid_t child;
        char *tweet;
                { }
        };
        struct session *session;
        pid_t child;
        char *tweet;

-       static char password[80];

        int retval = 0;
        int option;
        char *http_proxy;
        int retval = 0;
        int option;
        char *http_proxy;


@@ -1088,9 +1054,12 @@ int main(int argc, char *argv[], char *envp[])
        session->time = strdup(ctime(&t));
        session->time[strlen(session->time)-1] = 0x00;
 
        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"));
 
        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. */
 
        /* Set environment variables first, before reading command line options
         * or config file values. */


@@ -1105,7 +1074,7 @@ int main(int argc, char *argv[], char *envp[])
        parse_configfile(session);
 
        while (1) {
        parse_configfile(session);
 
        while (1) {

-               option = getopt_long_only(argc, argv, "dp:P:H:a:A:u:hg:G:snVv",
+               option = getopt_long_only(argc, argv, "dp:P:H:a:A:u:c:hg:G:snVv",

                                          options, NULL);
                if (option == -1)
                        break;
                                          options, NULL);
                if (option == -1)
                        break;


@@ -1116,23 +1085,11 @@ int main(int argc, char *argv[], char *envp[])
                case 'V':
                        verbose = 1;
                        break;
                case 'V':
                        verbose = 1;
                        break;

-               case 'a':
-                       if (session->account)
-                               free(session->account);
-                       session->account = strdup(optarg);
-                       dbg("account = %s\n", session->account);
-                       break;

                case 'g':
                        page_nr = atoi(optarg);
                        dbg("page = %d\n", page_nr);
                        session->page = page_nr;
                        break;
                case 'g':
                        page_nr = atoi(optarg);
                        dbg("page = %d\n", page_nr);
                        session->page = page_nr;
                        break;

-               case 'p':
-                       if (session->password)
-                               free(session->password);
-                       session->password = strdup(optarg);
-                       dbg("password = %s\n", session->password);
-                       break;

                case 'P':
                        if (session->proxy)
                                free(session->proxy);
                case 'P':
                        if (session->proxy)
                                free(session->proxy);


@@ -1201,6 +1158,18 @@ int main(int argc, char *argv[], char *envp[])
                case 'b':
                        session->bash = 1;
                        break;
                case 'b':
                        session->bash = 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...
+                        */
+                       parse_configfile(session);
+                       break;

                case 'h':
                        display_help();
                        goto exit;
                case 'h':
                        display_help();
                        goto exit;


@@ -1216,6 +1185,7 @@ 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
        /*
         * Show the version to make it easier to determine what
         * is going on here


@@ -1223,6 +1193,16 @@ int main(int argc, char *argv[], char *envp[])
        if (debug)
                display_version();
 
        if (debug)
                display_version();
 

+       if (!session->consumer_key || !session->consumer_secret) {
+               fprintf(stderr, "Both consumer key, and consumer secret are required.\n");
+               goto exit;
+       }
+       
+       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', "
        if (session->action == ACTION_UNKNOWN) {
                fprintf(stderr, "Unknown action, valid actions are:\n");
                fprintf(stderr, "'update', 'friends', 'public', "


@@ -1240,16 +1220,6 @@ int main(int argc, char *argv[], char *envp[])
                session->group = session->readline(NULL);
        }
 
                session->group = session->readline(NULL);
        }
 

-       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);
-       }
-

        if (session->action == ACTION_UPDATE) {
                if (session->bash || !session->interactive)
                        tweet = get_string_from_stdin();
        if (session->action == ACTION_UPDATE) {
                if (session->bash || !session->interactive)
                        tweet = get_string_from_stdin();


@@ -1274,13 +1244,9 @@ int main(int argc, char *argv[], char *envp[])
                dbg("tweet = %s\n", session->tweet);
        }
 
                dbg("tweet = %s\n", session->tweet);
        }
 

-       if (!session->user)
-               session->user = strdup(session->account);
-

        if (session->page == 0)
                session->page = 1;
        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);
 
        dbg("host = %d\n", session->host);
        dbg("action = %d\n", session->action);
 


@@ -1301,6 +1267,7 @@ int main(int argc, char *argv[], char *envp[])
 
        log_session(session, retval);
 exit:
 
        log_session(session, retval);
 exit:

+       session_readline_cleanup(session);

        session_free(session);
        return retval;;
 }
        session_free(session);
        return retval;;
 }