#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>
#define zalloc(size) calloc(size, 1)
char *user;
char *group;
char *hosturl;
+ char *hostname;
+ char *configfile;
int bash;
+ int interactive;
int shrink_urls;
int dry_run;
int page;
enum host host;
enum action action;
+ void *readline_handle;
+ char *(*readline)(const char *);
};
struct bti_curl_buffer {
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, "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;
free(session->user);
free(session->group);
free(session->hosturl);
+ free(session->hostname);
+ free(session->configfile);
free(session);
}
static const char *twitter_host = "https://twitter.com/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 *user_uri = "/user_timeline/";
static const char *update_uri = "/update.xml";
if (!curl)
return -EINVAL;
+ if (!session->hosturl)
+ session->hosturl = strdup(twitter_host);
+
switch (session->action) {
case ACTION_UPDATE:
snprintf(user_password, sizeof(user_password), "%s:%s",
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");
+ config_file = fopen(session->configfile, "r");
/* No error if file does not exist or is unreadable. */
if (config_file == NULL)
if (strcasecmp(host, "twitter") == 0) {
session->host = HOST_TWITTER;
session->hosturl = strdup(twitter_host);
+ session->hostname = strdup(twitter_name);
} else if (strcasecmp(host, "identica") == 0) {
session->host = HOST_IDENTICA;
session->hosturl = strdup(identica_host);
+ session->hostname = strdup(identica_name);
} else {
session->host = HOST_CUSTOM;
session->hosturl = strdup(host);
+ session->hostname = strdup(host);
}
free(host);
}
{
FILE *log_file;
char *filename;
- char *host;
/* Only log something if we have a log file set */
if (!session->logfile)
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 = session->hosturl;
- 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, host);
+ session->time, session->hostname);
break;
default:
break;
if (!fgets(string, 999, stdin))
return NULL;
temp = strchr(string, '\n');
- *temp = '\0';
+ if (temp)
+ *temp = '\0';
return string;
}
-void read_password(char *buf, size_t len)
+static void read_password(char *buf, size_t len, char *host)
{
char pwd[80];
+ int retval;
struct termios old;
struct termios tp;
tp.c_lflag &= (~ECHO);
tcsetattr(0, TCSANOW, &tp);
- fprintf(stdout, "Enter twitter password: ");
+ fprintf(stdout, "Enter password for %s: ", host);
fflush(stdout);
tcflow(0, TCOOFF);
- scanf("%79s", pwd);
+ retval = scanf("%79s", pwd);
tcflow(0, TCOON);
fprintf(stdout, "\n");
{ "dry-run", 0, NULL, 'n' },
{ "page", 1, NULL, 'g' },
{ "version", 0, NULL, 'v' },
+ { "config", 1, NULL, 'c' },
{ }
};
struct session *session;
debug = 0;
verbose = 0;
- rl_bind_key('\t', rl_insert);
session = session_alloc();
if (!session) {
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"));
+ /* set up a default config file location (traditionally ~/.bti) */
+ session->configfile = zalloc(strlen(session->homedir) + 7);
+ sprintf(session->configfile, "%s/.bti", session->homedir);
+
curl_global_init(CURL_GLOBAL_ALL);
/* Set environment variables first, before reading command line options
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;
case 'H':
if (session->hosturl)
free(session->hosturl);
+ if (session->hostname)
+ free(session->hostname);
if (strcasecmp(optarg, "twitter") == 0) {
session->host = HOST_TWITTER;
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;
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;
}
}
+ session_readline_init(session);
/*
* Show the version to make it easier to determine what
* is going on here
if (session->action == ACTION_GROUP && !session->group) {
fprintf(stdout, "Enter group name: ");
- session->group = readline(NULL);
+ session->group = session->readline(NULL);
}
if (!session->account) {
- fprintf(stdout, "Enter twitter account: ");
- session->account = readline(NULL);
+ fprintf(stdout, "Enter account for %s: ", session->hostname);
+ session->account = session->readline(NULL);
}
if (!session->password) {
- read_password(password, sizeof(password));
+ read_password(password, sizeof(password), session->hostname);
session->password = strdup(password);
}
if (session->action == ACTION_UPDATE) {
- if (session->bash)
+ if (session->bash || !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;
if (session->page == 0)
session->page = 1;
+ dbg("config file = %s\n", session->configfile);
dbg("account = %s\n", session->account);
dbg("password = %s\n", session->password);
dbg("host = %d\n", session->host);
log_session(session, retval);
exit:
+ session_readline_cleanup(session);
session_free(session);
return retval;;
}
ToastFreeware / gregoa / bti.git / blobdiff