-/*
- * Copyright notice from original mutt:
- * Copyright (C) 1998 Brandon Long <blong@fiction.net>
- * Copyright (C) 1999 Andrej Gritsenko <andrej@lucky.net>
- * Copyright (C) 2000-2002 Vsevolod Volkov <vvv@mutt.org.ua>
- *
- * This file is part of mutt-ng, see http://www.muttng.org/.
- * It's licensed under the GNU General Public License,
- * please see the file GPL in the top level source directory.
- */
-
-#include <lib-lib/lib-lib.h>
-
-#include <libgen.h>
-
-#include <lib-mime/mime.h>
-#include <lib-ui/lib-ui.h>
-#include <lib-ui/sidebar.h>
-#include <lib-mx/mx.h>
-
-#include "mutt.h"
-#include "sort.h"
-#include "nntp.h"
-#include "buffy.h"
-#include "crypt.h"
-
-#define NNTP_PORT 119
-#define NNTP_SSL_PORT 563
-
-static struct {
- unsigned use_cache : 1;
-
- int checked;
-} nntp = { true, 0 };
-
-static int nntp_check_newgroups (nntp_server_t *, int);
-
-static void nntp_free_acache(nntp_data_t * data)
-{
- for (int i = 0; i < countof(data->acache); i++) {
- if (data->acache[i].path) {
- unlink(data->acache[i].path);
- p_delete(&data->acache[i].path);
- }
- }
-}
-
-void nntp_data_wipe(nntp_data_t *data)
-{
- p_delete(&data->entries);
- p_delete(&data->desc);
- p_delete(&data->cache);
- p_delete(&data->group);
- nntp_free_acache(data);
-}
-
-/* newsrc {{{ */
-
-static void mutt_newsgroup_stat(nntp_data_t *data)
-{
- data->unread = 0;
- if (data->last == 0 || data->first > data->last)
- return;
-
- data->unread = data->last - data->first + 1;
- for (int i = 0; i < data->num; i++) {
- int first = MAX(data->entries[i].first, data->first);
- int last = MIN(data->entries[i].last, data->last);
- data->unread -= MAX(0, last - first + 1);
- }
-}
-
-static int nntp_parse_newsrc_line(nntp_server_t *news, const char *line)
-{
- nntp_data_t *data;
- char group[LONG_STRING];
- const char *p;
- int x = 1;
-
- for (p = line; *p; p++) {
- x += *p == ',';
- }
-
- p = strpbrk(line, ":!");
- if (!p)
- return -1;
-
- m_strncpy(group, ssizeof(group), line, p - line);
- data = hash_find(news->newsgroups, group);
- if (!data) {
- data = nntp_data_new();
- data->group = p_dupstr(line, p - line);
- data->nserv = news;
- data->deleted = 1;
- hash_insert(news->newsgroups, data->group, data);
- news->tail = nntp_data_list_append(news->tail, data);
- } else {
- p_delete(&data->entries);
- }
-
- data->rc = 1;
- data->entries = p_new(NEWSRC_ENTRY, x * 2);
- data->max = x * 2;
- data->subscribed = (*p++ == ':');
- p = skipspaces(p);
-
- for (x = 0; *p; p++) {
- data->entries[x].first = strtol(p, (char **)&p, 10);
- p += strcspn(p, "-,");
- if (*p == '-') {
- if (!*p)
- break;
- data->entries[x].last = strtol(p + 1, (char **)&p, 10);
- } else {
- data->entries[x].last = data->entries[x].first;
- p = strchrnul(p, ',');
- }
- x += data->entries[x].last != 0;
- }
-
- if (x && !data->last)
- data->last = data->entries[x - 1].last;
- data->num = x;
- mutt_newsgroup_stat(data);
- return 0;
-}
-
-static int slurp_newsrc (nntp_server_t * news)
-{
- FILE *fp;
- char *buf = NULL;
- size_t n = 0;
- struct stat sb;
-
- news->stat = stat(news->newsrc, &sb);
- news->size = sb.st_size;
- news->mtime = sb.st_mtime;
-
- if ((fp = safe_fopen(news->newsrc, "r")) == NULL)
- return -1;
-
- /* hmm, should we use dotlock? */
- if (mx_lock_file(news->newsrc, fileno (fp), 0, 0, 1)) {
- m_fclose(&fp);
- return -1;
- }
-
- while (getline(&buf, &n, fp) >= 0) {
- nntp_parse_newsrc_line(news, buf);
- }
- p_delete(&buf);
-
- mx_unlock_file (news->newsrc, fileno (fp), 0);
- m_fclose(&fp);
- return 0;
-}
-
-#define nntp_cache_expand(dst, dlen, fmt, ...) \
- do { \
- snprintf((dst), (dlen), "%s/" fmt, mod_core.cachedir, ##__VA_ARGS__);\
- mutt_expand_path((dst), (dlen)); \
- } while (0)
-
-/* Loads $news_cache_dir/.index into memory, loads newsserver data
- * and newsgroup cache names */
-static int nntp_parse_cacheindex(nntp_server_t *news)
-{
- char buf[HUGE_STRING];
- FILE *idx;
-
- p_delete(&news->cache);
- if (m_strisempty(mod_core.cachedir))
- return 0;
-
- nntp_cache_expand(buf, sizeof(buf), "%s.index", news->conn->account.host);
- if (!(idx = safe_fopen(buf, "a+")))
- return 0;
- rewind(idx);
-
- while (fgets(buf, sizeof(buf), idx)) {
- buf[m_strlen(buf) - 1] = 0; /* strip ending '\n' */
- if (!m_strncmp(buf, "#: ", 3)
- && !m_strcasecmp(buf + 3, news->conn->account.host)) {
- break;
- }
- }
-
- while (fgets(buf, sizeof(buf), idx)) {
- char *p, *q;
- int l, m, t;
-
- if (m_strstart(buf, "#:", NULL))
- break;
-
- p = strchrnul(buf, ' ');
- if (!*p)
- continue;
- *p++ = '\0';
- p = vskipspaces(p);
- q = strchrnul(p, ' ');
- if (!*q)
- continue;
- *q++ = '\0';
- l = strtol(q, &q, 10);
- m = strtol(q, &q, 10);
-
- if (!m_strcmp(buf, "ALL")) {
- m_strreplace(&news->cache, m_strdup(p));
- news->newgroups_time = m;
- continue;
- }
-
- if (news->newsgroups) {
- nntp_data_t *data = hash_find(news->newsgroups, buf);
-
- if (!data) {
- data = nntp_data_new();
- data->group = m_strdup(buf);
- data->nserv = news;
- data->deleted = 1;
- hash_insert (news->newsgroups, data->group, data);
- news->tail = nntp_data_list_append(news->tail, data);
- }
- m_strreplace(&data->cache, p);
-
- t = !data->first || data->last < m;
- if (!data->first)
- data->first = l;
- if (data->last < m)
- data->last = m;
- data->lastCached = m;
- if (t || !data->unread)
- mutt_newsgroup_stat(data);
- }
- }
-
- m_fclose(&idx);
- return 0;
-}
-
-/* nntp_parse_url: given an NNPT URL, return host, port,
- * username, password and newsgroup will recognise. */
-static int nntp_parse_url(const char *server, ACCOUNT *act, char *group,
- ssize_t group_len)
-{
- ciss_url_t url;
- char s[STRING];
-
- act->flags = 0;
- act->port = 0;
- act->type = M_ACCT_TYPE_NNTP;
-
- m_strcpy(s, sizeof(s), server);
- url_parse_ciss(&url, s);
-
- if (url.scheme != U_NNTP && url.scheme != U_NNTPS)
- return -1;
-
- act->has_ssl = (url.scheme == U_NNTPS);
- if (!act->port) {
- act->port = act->has_ssl ? NNTP_SSL_PORT : NNTP_PORT;
- }
- m_strcpy(group, group_len, url.path);
-
- return mutt_account_fromurl(act, &url);
-}
-
-void nntp_expand_path(char *line, ssize_t len, ACCOUNT *act)
-{
- ciss_url_t url = { .path = alloca(len) };
-
- m_strcpy(url.path, len, line);
- mutt_account_tourl (act, &url);
- url_ciss_tostring(&url, line, len, 0);
-}
-
-static int add_group(char *buf, void *serv)
-{
- char mod, group[HUGE_STRING], desc[HUGE_STRING];
- nntp_server_t *srv = serv;
- nntp_data_t *data;
- static int n = 0;
- int first, last;
-
- nntp.checked = n; /* nntp.checked have N, where N = number of groups */
- if (!buf) /* at EOF must be zerouth */
- n = 0;
-
- if (!srv || !buf)
- return 0;
-
- *desc = '\0';
- sscanf(buf, "%s %d %d %c %[^\n]", group, &last, &first, &mod, desc);
-
- if (!(data = hash_find(srv->newsgroups, group))) {
- n++;
- data = nntp_data_new();
- data->group = m_strdup(group);
- data->nserv = srv;
- hash_insert(srv->newsgroups, data->group, data);
- srv->tail = nntp_data_list_append(srv->tail, data);
- }
-
- data->deleted = 0;
- data->first = first;
- data->last = last;
- data->allowed = mod == 'y';
- m_strreplace(&data->desc, desc);
- mutt_newsgroup_stat(data);
- return 0;
-}
-
-static int nntp_get_cache_all(nntp_server_t * serv)
-{
- char buf[HUGE_STRING];
- FILE *f;
-
- nntp_cache_expand(buf, ssizeof(buf), "%s", serv->cache);
- if ((f = fopen(buf, "r"))) {
- int i = 0;
-
- while (fgets(buf, sizeof(buf), f)) {
- if (ReadInc && (i % ReadInc == 0))
- mutt_message (_("Loading list from cache... %d"), i);
- add_group(buf, serv);
- i++;
- }
- add_group (NULL, NULL);
- m_fclose(&f);
- mutt_clear_error();
- return 0;
- }
-
- p_delete(&serv->cache);
- return -1;
-}
-
-/*
- * Automatically loads a newsrc into memory, if necessary.
- * Checks the size/mtime of a newsrc file, if it doesn't match, load
- * again. Hmm, if a system has broken mtimes, this might mean the file
- * is reloaded every time, which we'd have to fix.
- *
- * a newsrc file is a line per newsgroup, with the newsgroup, then a
- * ':' denoting subscribed or '!' denoting unsubscribed, then a
- * comma separated list of article numbers and ranges.
- */
-nntp_server_t *mutt_select_newsserver (char *server)
-{
- char file[_POSIX_PATH_MAX];
- char *buf, *p;
- nntp_data_t *list;
- ACCOUNT act;
- nntp_server_t *serv;
- CONNECTION *conn;
-
- p_clear(&act, 1);
-
- if (m_strisempty(server)) {
- mutt_error _("No newsserver defined!");
- return NULL;
- }
-
- buf = p = p_new(char, m_strlen(server) + 10);
- if (url_check_scheme (server) == U_UNKNOWN) {
- strcpy (buf, "nntp://");
- p = strchr (buf, '\0');
- }
- strcpy (p, server);
-
- if ((nntp_parse_url(buf, &act, file, sizeof(file))) < 0 || *file) {
- p_delete(&buf);
- mutt_error (_("%s is an invalid newsserver specification!"), server);
- return NULL;
- }
- p_delete(&buf);
-
- conn = mutt_conn_find (NULL, &act);
- if (!conn)
- return NULL;
-
- nntp_cache_expand(file, sizeof(file), "%s.newsrc", conn->account.host);
- serv = (nntp_server_t *) conn->data;
- if (serv) {
- struct stat sb;
-
- /* externally modified? */
- if (serv->stat != stat(file, &sb)
- || (!serv->stat && (serv->size != sb.st_size
- || serv->mtime != sb.st_mtime)))
- {
- for (list = serv->list; list; list = list->next) {
- list->subscribed = list->rc = list->num = 0;
- }
- slurp_newsrc(serv);
- }
-
- if (serv->status == NNTP_BYE)
- serv->status = NNTP_NONE;
- nntp_check_newgroups(serv, 0);
- return serv;
- }
-
- /* New newsserver */
- serv = p_new(nntp_server_t, 1);
- serv->tail = &serv->list;
- serv->conn = conn;
- serv->newsrc = m_strdup(file);
- serv->newsgroups = hash_new(SHRT_MAX, false);
- slurp_newsrc(serv); /* load .newsrc */
- nntp_parse_cacheindex(serv); /* load .index */
- if (nntp.use_cache && serv->cache && nntp_get_cache_all(serv) >= 0) {
- nntp_check_newgroups (serv, 1);
- } else if (nntp_get_active(serv) < 0) {
- hash_delete(&serv->newsgroups, NULL);
- nntp_data_list_wipe(&serv->list);
- p_delete(&serv->newsrc);
- p_delete(&serv->cache);
- p_delete(&serv);
- return NULL;
- }
-
- conn->data = serv;
- return serv;
-}
-
-/*
- * full status flags are not supported by nntp, but we can fake some
- * of them. This is how:
- * Read = a read message number is in the .newsrc
- * New = a message is new since we last read this newsgroup
- * Old = anything else
- * So, Read is marked as such in the newsrc, old is anything that is
- * "skipped" in the newsrc, and new is anything not in the newsrc nor
- * in the cache. By skipped, I mean before the last unread message
- */
-static void
-nntp_get_status(CONTEXT *ctx, HEADER *h, const char *group, int article)
-{
- nntp_data_t *data = ctx->data;
-
- if (group)
- data = hash_find(data->nserv->newsgroups, group);
- if (!data)
- return;
-
- for (int i = 0; i < data->num; i++) {
- if ((article >= data->entries[i].first) &&
- (article <= data->entries[i].last))
- {
- /* we cannot use mutt_set_flag() because mx_update_context()
- didn't called yet */
- h->read = 1;
- return;
- }
- }
-
- /* If article was not cached yet, it is new! :) */
- if (!data->cache || article > data->lastCached)
- return;
-
- /* Old articles are articles which aren't read but an article after them
- * has been cached */
- if (option(OPTMARKOLD))
- h->old = 1;
-}
-
-static void newsrc_gen_entries (CONTEXT * ctx)
-{
- nntp_data_t *data = (nntp_data_t *) ctx->data;
- int series, x;
- int last = 0, first = 1;
- int save_sort = SORT_ORDER;
-
- if (Sort != SORT_ORDER) {
- save_sort = Sort;
- Sort = SORT_ORDER;
- mutt_sort_headers (ctx, 0);
- }
-
- if (!data->max) {
- data->entries = p_new(NEWSRC_ENTRY, 5);
- data->max = 5;
- }
-
- /*
- * Set up to fake initial sequence from 1 to the article before the
- * first article in our list
- */
- data->num = 0;
- series = 1;
-
- for (x = 0; x < ctx->msgcount; x++) {
- if (series) { /* search for first unread */
- /*
- * We don't actually check sequential order, since we mark
- * "missing" entries as read/deleted
- */
- last = ctx->hdrs[x]->article_num;
- if (last >= data->first && !ctx->hdrs[x]->deleted &&
- !ctx->hdrs[x]->read) {
- if (data->num >= data->max) {
- data->max = data->max * 2;
- p_realloc(&data->entries, data->max);
- }
- data->entries[data->num].first = first;
- data->entries[data->num].last = last - 1;
- data->num++;
- series = 0;
- }
- }
- else { /* search for first read */
-
- if (ctx->hdrs[x]->deleted || ctx->hdrs[x]->read) {
- first = last + 1;
- series = 1;
- }
- last = ctx->hdrs[x]->article_num;
- }
- }
- if (series && first <= data->lastLoaded) {
- if (data->num >= data->max) {
- data->max = data->max * 2;
- p_realloc(&data->entries, data->max);
- }
- data->entries[data->num].first = first;
- data->entries[data->num].last = data->lastLoaded;
- data->num++;
- }
-
- if (save_sort != Sort) {
- Sort = save_sort;
- mutt_sort_headers (ctx, 0);
- }
-}
-
-static int mutt_update_list_file (char *filename, char *section,
- const char *key, const char *line)
-{
- FILE *ifp;
- FILE *ofp;
- char buf[HUGE_STRING];
- char tmpf[_POSIX_PATH_MAX], lnk[_POSIX_PATH_MAX];
- char *c;
- int ext = 0, done = 0, r = 0, l = 0;
-
- /* if file not exist, create it */
- if ((ifp = safe_fopen (filename, "a")))
- m_fclose(&ifp);
- if (!(ifp = safe_fopen (filename, "r"))) {
- mutt_error (_("Unable to open %s for reading"), filename);
- return -1;
- }
- if (mx_lock_file (filename, fileno (ifp), 0, 0, 1)) {
- m_fclose(&ifp);
- mutt_error (_("Unable to lock %s"), filename);
- return -1;
- }
-
- /* use m_tempfile() to get a tempfile in the same
- * directory as filename is so that we can follow symlinks
- * via rename(2); as dirname(2) may modify its argument,
- * temporarily use buf as copy of it
- */
- m_strcpy(buf, sizeof(buf), filename);
- ofp = m_tempfile(tmpf, sizeof(tmpf), dirname(buf), filename);
- if (!ofp) {
- m_fclose(&ifp);
- mutt_error (_("Unable to open %s for writing"), tmpf);
- return -1;
- }
-
- if (section) {
- while (r != EOF && !done && fgets (buf, sizeof (buf), ifp)) {
- r = fputs (buf, ofp);
- c = buf;
- while (*c && *c != '\n') c++;
- c[0] = 0; /* strip EOL */
- if (!strncmp (buf, "#: ", 3) && !m_strcasecmp(buf+3, section))
- done++;
- }
- if (r != EOF && !done) {
- snprintf (buf, sizeof(buf), "#: %s\n", section);
- r = fputs (buf, ofp);
- }
- done = 0;
- }
-
- while (r != EOF && fgets (buf, sizeof (buf), ifp)) {
- if (ext) {
- c = buf;
- while (*c && (*c != '\r') && (*c != '\n')) c++;
- c--;
- if (*c != '\\') ext = 0;
- } else if ((section && !strncmp (buf, "#: ", 3))) {
- if (!done && line) {
- fputs (line, ofp);
- fputc ('\n', ofp);
- }
- r = fputs (buf, ofp);
- done++;
- break;
- } else if (key && !strncmp (buf, key, strlen(key)) &&
- (!*key || buf[strlen(key)] == ' ')) {
- c = buf;
- ext = 0;
- while (*c && (*c != '\r') && (*c != '\n')) c++;
- c--;
- if (*c == '\\') ext = 1;
- if (!done && line) {
- r = fputs (line, ofp);
- if (*key)
- r = fputc ('\n', ofp);
- done++;
- }
- } else {
- r = fputs (buf, ofp);
- }
- }
-
- while (r != EOF && fgets (buf, sizeof (buf), ifp))
- r = fputs (buf, ofp);
-
- /* If there wasn't a line to replace, put it on the end of the file */
- if (r != EOF && !done && line) {
- fputs (line, ofp);
- r = fputc ('\n', ofp);
- }
- mx_unlock_file (filename, fileno (ifp), 0);
- m_fclose(&ofp);
- m_fclose(&ifp);
- if (r == EOF) {
- unlink (tmpf);
- mutt_error (_("Can't write %s"), tmpf);
- return -1;
- }
- lnk[0] = '\0';
- if ((l = readlink (filename, lnk, sizeof(lnk)-1)) > 0)
- lnk[l] = '\0';
- if (rename (tmpf, l > 0 ? lnk : filename) < 0) {
- unlink (tmpf);
- mutt_error (_("Can't rename %s to %s"), tmpf, l > 0 ? lnk : filename);
- return -1;
- }
- return 0;
-}
-
-int mutt_newsrc_update (nntp_server_t * news)
-{
- buffer_t buf;
- nntp_data_t *data;
- int r = -1;
-
- if (!news)
- return -1;
-
- buffer_init(&buf);
-
- /* we will generate full newsrc here */
- for (data = news->list; data; data = data->next) {
- if (!data || !data->rc)
- continue;
-
- buffer_addstr(&buf, data->group);
- buffer_addch(&buf, data->subscribed ? ':' : '!');
-
- for (int x = 0; x < data->num; x++) {
- buffer_addch(&buf, x ? ',' : ' ');
- buffer_addf(&buf, "%d-%d", data->entries[x].first,
- data->entries[x].last);
- }
- buffer_addch(&buf, '\n');
- }
-
- /* newrc being fully rewritten */
- if (news->newsrc
- && (r = mutt_update_list_file(news->newsrc, NULL, "", buf.data)) == 0)
- {
- struct stat st;
-
- stat (news->newsrc, &st);
- news->size = st.st_size;
- news->mtime = st.st_mtime;
- }
-
- buffer_wipe(&buf);
- return r;
-}
-
-static FILE *mutt_mkname (char *s)
-{
- char buf[_POSIX_PATH_MAX], *pc;
- int fd;
- FILE *fp;
-
- nntp_cache_expand(buf, ssizeof(buf), "%s", s);
- if ((fp = safe_fopen (buf, "w")))
- return fp;
-
- nntp_cache_expand(buf, ssizeof(buf), "cache-XXXXXX");
- pc = buf + m_strlen(buf) - 12; /* positioning to "cache-XXXXXX" */
- if ((fd = mkstemp (buf)) == -1)
- return NULL;
- strcpy (s, pc); /* generated name */
- return fdopen (fd, "w");
-}
-
-/* Updates info into .index file: ALL or about selected newsgroup */
-static int nntp_update_cacheindex (nntp_server_t * serv, nntp_data_t * data)
-{
- char buf[LONG_STRING];
- char file[_POSIX_PATH_MAX];
- const char *key = "ALL";
-
- if (!serv || !serv->conn || !serv->conn->account.host)
- return -1;
-
- if (data && data->group) {
- key = data->group;
- snprintf(buf, sizeof(buf), "%s %s %d %d", key, data->cache,
- data->first, data->lastLoaded);
- } else {
- m_strcpy(file, sizeof(file), serv->cache);
- snprintf(buf, sizeof (buf), "ALL %s 0 %d", file,
- (int)serv->newgroups_time);
- }
- nntp_cache_expand(file, ssizeof(file), "%s.index", serv->conn->account.host);
- return mutt_update_list_file(file, serv->conn->account.host, key, buf);
-}
-
-static void nntp_delete_cache (nntp_data_t * data)
-{
- char buf[_POSIX_PATH_MAX];
-
- if (!nntp.use_cache || !data || !data->cache || !data->nserv)
- return;
-
- nntp_cache_expand(buf, ssizeof(buf), "%s", data->cache);
- unlink (buf);
- p_delete(&data->cache);
- data->lastCached = 0;
- nntp_cache_expand(buf, ssizeof(buf), "%s.index",
- data->nserv->conn->account.host);
- mutt_update_list_file(buf, data->nserv->conn->account.host, data->group,
- NULL);
-}
-
-static int nntp_save_cache_index (nntp_server_t * news)
-{
- char buf[HUGE_STRING];
- char file[_POSIX_PATH_MAX];
- nntp_data_t *d;
- FILE *f;
-
- if (!news || !news->newsgroups)
- return -1;
- if (!nntp.use_cache)
- return 0;
-
- if (news->cache) {
- nntp_cache_expand(file, ssizeof(file), "%s", news->cache);
- unlink(file);
- f = safe_fopen(file, "w");
- } else {
- m_strcpy(buf, ssizeof(buf), news->conn->account.host);
- f = mutt_mkname(buf);
- news->cache = m_strdup(buf);
- nntp_cache_expand(file, ssizeof(file), "%s", buf);
- }
- if (!f)
- return -1;
-
- for (d = news->list; d; d = d->next) {
- if (!d->deleted) {
- if (d->desc)
- snprintf (buf, sizeof (buf), "%s %d %d %c %s\n", d->group,
- d->last, d->first, d->allowed ? 'y' : 'n',
- d->desc);
- else
- snprintf (buf, sizeof (buf), "%s %d %d %c\n", d->group,
- d->last, d->first, d->allowed ? 'y' : 'n');
- if (fputs (buf, f) == EOF) {
- m_fclose(&f);
- unlink (file);
- return -1;
- }
- }
- }
- m_fclose(&f);
-
- if (nntp_update_cacheindex (news, NULL)) {
- unlink (file);
- return -1;
- }
- return 0;
-}
-
-static int nntp_save_cache_group (CONTEXT * ctx)
-{
- char buf[HUGE_STRING], addr[STRING];
- char file[_POSIX_PATH_MAX];
- FILE *f;
- HEADER *h;
- int i = 0, save = SORT_ORDER;
- int prev = 0;
-
- if (!nntp.use_cache)
- return 0;
- if (!ctx || !ctx->data || ctx->magic != M_NNTP)
- return -1;
-
- if (((nntp_data_t *) ctx->data)->cache) {
- nntp_cache_expand(file, ssizeof(file), "%s",
- ((nntp_data_t *)ctx->data)->cache);
- unlink (file);
- f = safe_fopen (file, "w");
- }
- else {
- snprintf(buf, ssizeof(buf), "%s-%s",
- ((nntp_data_t *)ctx->data)->nserv->conn->account.host,
- ((nntp_data_t *)ctx->data)->group);
- f = mutt_mkname (buf);
- ((nntp_data_t *)ctx->data)->cache = m_strdup(buf);
- nntp_cache_expand(file, ssizeof(file), "%s", buf);
- }
- if (!f)
- return -1;
-
- if (Sort != SORT_ORDER) {
- save = Sort;
- Sort = SORT_ORDER;
- mutt_sort_headers (ctx, 0);
- }
-
- /* Save only $nntp_context messages... */
- ((nntp_data_t *) ctx->data)->lastCached = 0;
- if (NntpContext && ctx->msgcount > NntpContext)
- i = ctx->msgcount - NntpContext;
- for (; i < ctx->msgcount; i++) {
- if (!ctx->hdrs[i]->deleted && ctx->hdrs[i]->article_num != prev) {
- char *loc;
- h = ctx->hdrs[i];
- addr[0] = 0;
- rfc822_addrcat(addr, sizeof(addr), h->env->from, 0);
-
- loc = setlocale(LC_TIME, "C");
- strftime(buf, sizeof(buf), "%d %b %Y %H:%M:%S GMT", gmtime(&h->date_sent));
- setlocale(LC_TIME, loc);
-
- fprintf(f, "%d\t%s\t%s\t%s\t%s\t\n", h->article_num, h->env->subject,
- addr, buf, h->env->message_id);
- if (h->env->references)
- mutt_write_references (h->env->references, f);
- if (fprintf(f, "\t%zd\t%d\tXref: %s\n", h->content->length, h->lines,
- NONULL(h->env->xref)) == EOF)
- {
- m_fclose(&f);
- unlink (file);
- return -1;
- }
- }
- prev = ctx->hdrs[i]->article_num;
- }
-
- if (save != Sort) {
- Sort = save;
- mutt_sort_headers (ctx, 0);
- }
- m_fclose(&f);
-
- if (nntp_update_cacheindex (((nntp_data_t *) ctx->data)->nserv,
- (nntp_data_t *) ctx->data)) {
- unlink (file);
- return -1;
- }
- ((nntp_data_t *) ctx->data)->lastCached =
- ((nntp_data_t *) ctx->data)->lastLoaded;
- return 0;
-}
-
-nntp_data_t *mutt_newsgroup_subscribe (nntp_server_t * news, char *group)
-{
- nntp_data_t *data;
-
- if (!news || !news->newsgroups || !group || !*group)
- return NULL;
- if (!(data = (nntp_data_t *) hash_find (news->newsgroups, group))) {
- data = nntp_data_new();
- data->group = m_strdup(group);
- data->nserv = news;
- data->deleted = 1;
- hash_insert (news->newsgroups, data->group, data);
- news->tail = nntp_data_list_append(news->tail, data);
- }
- if (!data->subscribed) {
- data->subscribed = 1;
- data->rc = 1;
- }
- return data;
-}
-
-nntp_data_t *mutt_newsgroup_unsubscribe (nntp_server_t * news, char *group)
-{
- nntp_data_t *data;
-
- if (!news || !news->newsgroups || !group || !*group ||
- !(data = (nntp_data_t *) hash_find (news->newsgroups, group)))
- return NULL;
- if (data->subscribed) {
- data->subscribed = 0;
- }
- return data;
-}
-
-nntp_data_t *mutt_newsgroup_catchup (nntp_server_t * news, char *group)
-{
- nntp_data_t *data;
-
- if (!news || !news->newsgroups || !group || !*group ||
- !(data = (nntp_data_t *) hash_find (news->newsgroups, group)))
- return NULL;
- if (!data->max) {
- data->entries = p_new(NEWSRC_ENTRY, 5);
- data->max = 5;
- }
- data->num = 1;
- data->entries[0].first = 1;
- data->unread = 0;
- data->entries[0].last = data->last;
- if (Context && Context->data == data) {
- int x;
-
- for (x = 0; x < Context->msgcount; x++)
- mutt_set_flag (Context, Context->hdrs[x], M_READ, 1);
- }
- return data;
-}
-
-nntp_data_t *mutt_newsgroup_uncatchup (nntp_server_t * news, char *group)
-{
- nntp_data_t *data;
-
- if (!news || !news->newsgroups || !group || !*group ||
- !(data = (nntp_data_t *) hash_find (news->newsgroups, group)))
- return NULL;
- if (!data->max) {
- data->entries = p_new(NEWSRC_ENTRY, 5);
- data->max = 5;
- }
- data->num = 1;
- data->entries[0].first = 1;
- data->entries[0].last = data->first - 1;
- if (Context && Context->data == data) {
- int x;
-
- data->unread = Context->msgcount;
- for (x = 0; x < Context->msgcount; x++)
- mutt_set_flag (Context, Context->hdrs[x], M_READ, 0);
- }
- else
- data->unread = data->last - data->entries[0].last;
- return data;
-}
-
-/* this routine gives the first newsgroup with new messages */
-void nntp_buffy (char* dst, ssize_t dstlen) {
- nntp_data_t *list;
- int count = 0;
-
- /* forward to current group */
- for (list = CurrentNewsSrv->list; list; list = list->next) {
- if (list->subscribed && list->unread
- && Context && Context->magic == M_NNTP
- && m_strcmp(list->group, ((nntp_data_t *)Context->data)->group) == 0)
- {
- list = list->next;
- break;
- }
- }
-
- *dst = '\0';
-
- while (count < 2) {
-
- if (!list)
- list = CurrentNewsSrv->list;
-
- for (; list; list = list->next) {
- if (list->subscribed && list->unread) {
- if (Context && Context->magic == M_NNTP &&
- !m_strcmp(list->group, ((nntp_data_t *)Context->data)->group)) {
- int i, unread = 0;
-
- for (i = 0; i < Context->msgcount; i++)
- if (!Context->hdrs[i]->read && !Context->hdrs[i]->deleted)
- unread++;
- if (!unread)
- continue;
- }
- m_strcpy(dst, dstlen, list->group);
- break;
- }
- }
- /* done if found */
- if (dst && *dst)
- return;
- count++;
- }
- *dst = '\0';
-}
-
-/* }}} */
-/* nntp protocol {{{ */
-
-void nntp_sync_sidebar (nntp_data_t* data) {
- int i = 0;
- BUFFY* tmp = NULL;
- char buf[STRING];
-
- if (!Incoming.len)
- return;
-
- snprintf(buf, sizeof (buf), "nntp%s://%s%s%s%s/%s",
- data->nserv->conn->account.has_ssl ? "s" : "",
- NONULL(data->nserv->conn->account.user),
- *data->nserv->conn->account.pass ? ":" : "",
- *data->nserv->conn->account.pass ? data->nserv->conn->account.pass : "",
- data->nserv->conn->account.host,
- data->group);
-
- /* bail out if group not found via mailboxes */
- if ((i = buffy_lookup (buf)) < 0)
- return;
-
- tmp = Incoming.arr[i];
- /* copied from browser.c */
- if (option (OPTMARKOLD) &&
- data->lastCached >= data->first &&
- data->lastCached <= data->last)
- tmp->msg_unread = data->last - data->lastCached;
- else
- tmp->msg_unread = data->unread;
- tmp->new = data->unread > 0;
- /* this is closest to a "total" count we can get */
- tmp->msgcount = data->last - data->first;
-}
-
-static int nntp_auth (nntp_server_t * serv)
-{
- CONNECTION *conn = serv->conn;
- char buf[STRING];
- int flags = conn->account.flags;
-
- if (mutt_account_getuser(&conn->account) || !conn->account.user[0] ||
- mutt_account_getpass(&conn->account) || !conn->account.pass[0]) {
- conn->account.flags = flags;
- return -2;
- }
-
- mutt_message _("Logging in...");
-
- snprintf (buf, sizeof (buf), "AUTHINFO USER %s\r\n", conn->account.user);
- mutt_socket_write (conn, buf);
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0) {
- conn->account.flags = flags;
- return -1;
- }
-
- snprintf (buf, sizeof (buf), "AUTHINFO PASS %s\r\n", conn->account.pass);
- mutt_socket_write(conn, buf);
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0) {
- conn->account.flags = flags;
- return -1;
- }
-
- if (m_strncmp("281", buf, 3)) {
- conn->account.flags = flags;
- mutt_error _("Login failed.");
-
- sleep (2);
- return -3;
- }
-
- return 0;
-}
-
-static int nntp_connect_error (nntp_server_t * serv)
-{
- serv->status = NNTP_NONE;
- mutt_socket_close (serv->conn);
- mutt_error _("Server closed connection!");
-
- sleep (2);
- return -1;
-}
-
-static int nntp_connect_and_auth (nntp_server_t * serv)
-{
- CONNECTION *conn = serv->conn;
- char buf[STRING];
- int rc;
-
- serv->status = NNTP_NONE;
-
- if (mutt_socket_open (conn) < 0)
- return -1;
-
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0)
- return nntp_connect_error (serv);
-
- if (!m_strncmp("200", buf, 3))
- mutt_message (_("Connected to %s. Posting ok."), conn->account.host);
- else if (!m_strncmp("201", buf, 3))
- mutt_message (_("Connected to %s. Posting NOT ok."), conn->account.host);
- else {
- mutt_socket_close(conn);
- m_strrtrim(buf);
- mutt_error("%s", buf);
- sleep (2);
- return -1;
- }
-
- /* Tell INN to switch to mode reader if it isn't so. Ignore all
- returned codes and messages. */
- mutt_socket_write (conn, "MODE READER\r\n");
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0)
- return nntp_connect_error (serv);
-
- mutt_socket_write (conn, "STAT\r\n");
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0)
- return nntp_connect_error (serv);
-
- if (!conn->account.has_user && m_strncmp("480", buf, 3)) {
- serv->status = NNTP_OK;
- return 0;
- }
-
- rc = nntp_auth (serv);
- if (rc == -1)
- return nntp_connect_error (serv);
- if (rc == -2) {
- mutt_socket_close (conn);
- serv->status = NNTP_BYE;
- return -1;
- }
- if (rc < 0) {
- mutt_socket_close (conn);
- mutt_error _("Login failed.");
-
- sleep (2);
- return -1;
- }
- serv->status = NNTP_OK;
- return 0;
-}
-
-static int nntp_attempt_features (nntp_server_t * serv)
-{
- char buf[LONG_STRING];
- CONNECTION *conn = serv->conn;
-
- if (serv->feat_known)
- return 0;
-
- mutt_socket_write (conn, "XOVER\r\n");
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0)
- return nntp_connect_error (serv);
- if (m_strncmp("500", buf, 3))
- serv->hasXOVER = 1;
-
- mutt_socket_write (conn, "XPAT\r\n");
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0)
- return nntp_connect_error (serv);
- if (m_strncmp("500", buf, 3))
- serv->hasXPAT = 1;
-
- mutt_socket_write (conn, "LISTGROUP\r\n");
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0)
- return (nntp_connect_error (serv));
- if (m_strncmp("500", buf, 3))
- serv->hasLISTGROUP = 1;
-
- mutt_socket_write (conn, "XGTITLE +\r\n");
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0)
- return nntp_connect_error (serv);
- if (m_strncmp("500", buf, 3))
- serv->hasXGTITLE = 1;
-
- if (!m_strncmp("282", buf, 3)) {
- do {
- if (mutt_socket_readln (buf, sizeof (buf), conn) < 0)
- return nntp_connect_error (serv);
- } while (!(buf[0] == '.' && buf[1] == '\0'));
- }
-
- serv->feat_known = 1;
- return 0;
-}
-
-static int nntp_open_connection (nntp_server_t * serv)
-{
- if (serv->status == NNTP_OK)
- return 0;
- if (serv->status == NNTP_BYE)
- return -1;
- if (nntp_connect_and_auth (serv) < 0)
- return -1;
- if (nntp_attempt_features (serv) < 0)
- return -1;
- return 0;
-}
-
-static int nntp_reconnect (nntp_server_t * serv)
-{
- char buf[STRING];
-
- mutt_socket_close (serv->conn);
-
- for (;;) {
- if (nntp_connect_and_auth (serv) == 0)
- return 0;
-
- snprintf (buf, sizeof (buf), _("Connection to %s lost. Reconnect?"),
- serv->conn->account.host);
- if (query_quadoption (OPT_NNTPRECONNECT, buf) != M_YES) {
- serv->status = NNTP_BYE;
- return -1;
- }
- }
-}
-
-/* Send data from line[LONG_STRING] and receive answer to same line */
-static int mutt_nntp_query (nntp_data_t * data, char *line, size_t linelen)
-{
- char buf[LONG_STRING];
- int done = TRUE;
-
- if (data->nserv->status == NNTP_BYE)
- return -1;
-
- do {
- if (*line) {
- mutt_socket_write (data->nserv->conn, line);
- }
- else if (data->group) {
- snprintf (buf, sizeof (buf), "GROUP %s\r\n", data->group);
- mutt_socket_write (data->nserv->conn, buf);
- }
-
- done = TRUE;
- if (mutt_socket_readln (buf, sizeof (buf), data->nserv->conn) < 0) {
- if (nntp_reconnect (data->nserv) < 0)
- return -1;
-
- if (data->group) {
- snprintf (buf, sizeof (buf), "GROUP %s\r\n", data->group);
- mutt_socket_write (data->nserv->conn, buf);
- if (mutt_socket_readln (buf, sizeof (buf), data->nserv->conn) < 0)
- return -1;
- }
- if (*line)
- done = FALSE;
- }
- else if ((!m_strncmp("480", buf, 3)) && nntp_auth (data->nserv) < 0)
- return -1;
- } while (!done);
-
- m_strcpy(line, linelen, buf);
- return 0;
-}
-
-/*
- * This function calls funct(*line, *data) for each received line,
- * funct(NULL, *data) if rewind(*data) needs, exits when fail or done.
- * Returned codes:
- * 0 - successful,
- * 1 - correct but not performed (may be, have to be continued),
- * -1 - conection lost,
- * -2 - invalid command or execution error,
- * -3 - error in funct(*line, *data).
- */
-static int mutt_nntp_fetch (nntp_data_t * nntp_data, const char *query,
- const char *msg, progress_t* bar,
- int (*funct) (char *, void *),
- void *data, int tagged)
-{
- char buf[LONG_STRING];
- char *inbuf, *p;
- int done = FALSE;
- int chunk, line;
- long pos = 0;
- size_t lenbuf = 0;
- int ret;
-
- do {
- m_strcpy(buf, sizeof(buf), query);
- if (mutt_nntp_query (nntp_data, buf, sizeof (buf)) < 0)
- return -1;
- if (buf[0] == '5')
- return -2;
- if (buf[0] != '2')
- return 1;
-
- ret = 0;
- line = 0;
- inbuf = p_new(char, sizeof(buf));
-
- for (;;) {
- chunk = mutt_socket_readln(buf, sizeof (buf), nntp_data->nserv->conn);
- if (chunk < 0)
- break;
-
- p = buf;
- if (!lenbuf && buf[0] == '.') {
- if (buf[1] == '\0') {
- done = TRUE;
- break;
- }
- if (buf[1] == '.')
- p++;
- }
-
- m_strcpy(inbuf + lenbuf, sizeof(buf), p);
- pos += chunk;
-
- if (chunk >= ssizeof (buf)) {
- lenbuf += m_strlen(p);
- }
- else {
- if (bar) {
- mutt_progress_bar (bar, pos);
- } else if (msg) {
- line++;
- if (ReadInc && (line % ReadInc == 0)) {
- if (tagged)
- mutt_message (_("%s (tagged: %d) %d"), msg, tagged, line);
- else
- mutt_message ("%s %d", msg, line);
- }
- }
-
- if (ret == 0 && funct (inbuf, data) < 0)
- ret = -3;
- lenbuf = 0;
- }
-
- p_realloc(&inbuf, lenbuf + sizeof (buf));
- }
- p_delete(&inbuf);
- funct (NULL, data);
- }
- while (!done);
- return ret;
-}
-
-static int nntp_read_tempfile (char *line, void *file)
-{
- FILE *f = (FILE *) file;
-
- if (!line)
- rewind (f);
- else {
- fputs (line, f);
- if (fputc ('\n', f) == EOF)
- return -1;
- }
- return 0;
-}
-
-static void nntp_parse_xref (CONTEXT * ctx, char *group, char *xref,
- HEADER * h)
-{
- register char *p, *b;
- register char *colon = NULL;
-
- b = p = xref;
- while (*p) {
- /* skip to next word */
- b = p;
- while (*b && ((*b == ' ') || (*b == '\t')))
- b++;
- p = b;
- colon = NULL;
- /* skip to end of word */
- while (*p && (*p != ' ') && (*p != '\t')) {
- if (*p == ':')
- colon = p;
- p++;
- }
- if (*p) {
- *p = '\0';
- p++;
- }
- if (colon) {
- *colon = '\0';
- colon++;
- nntp_get_status (ctx, h, b, atoi (colon));
- if (h && h->article_num == 0 && m_strcmp(group, b) == 0)
- h->article_num = atoi (colon);
- }
- }
-}
-
-/*
- * returns:
- * 0 on success
- * 1 if article not found
- * -1 if read or write error on tempfile or socket
- */
-static int nntp_read_header (CONTEXT * ctx, const char *msgid,
- int article_num)
-{
- nntp_data_t *nntp_data = ((nntp_data_t *) ctx->data);
- FILE *f;
- char buf[LONG_STRING];
- char tempfile[_POSIX_PATH_MAX];
- int ret;
- HEADER *h = ctx->hdrs[ctx->msgcount];
-
- f = m_tempfile(tempfile, sizeof(tempfile), NONULL(mod_core.tmpdir), NULL);
- if (!f)
- return -1;
-
- if (!msgid)
- snprintf (buf, sizeof (buf), "HEAD %d\r\n", article_num);
- else
- snprintf (buf, sizeof (buf), "HEAD %s\r\n", msgid);
-
- ret = mutt_nntp_fetch (nntp_data, buf, NULL, NULL, nntp_read_tempfile, f, 0);
- if (ret) {
- m_fclose(&f);
- unlink (tempfile);
- return (ret == -1 ? -1 : 1);
- }
-
- h->article_num = article_num;
- h->env = mutt_read_rfc822_header (f, h, 0, 0);
- m_fclose(&f);
- unlink (tempfile);
-
- if (h->env->xref != NULL)
- nntp_parse_xref (ctx, nntp_data->group, h->env->xref, h);
- else if (h->article_num == 0 && msgid) {
- snprintf (buf, sizeof (buf), "STAT %s\r\n", msgid);
- if (mutt_nntp_query (nntp_data, buf, sizeof (buf)) == 0)
- h->article_num = atoi (buf + 4);
- }
-
- return 0;
-}
-
-static int parse_description (char *line, void *n)
-{
- register char *d = line;
- nntp_data_t *data;
- nntp_server_t *news = n;
-
- if (!line)
- return 0;
- while (*d && *d != '\t' && *d != ' ')
- d++;
- *d = 0;
- d++;
- while (*d && (*d == '\t' || *d == ' '))
- d++;
- if ((data = (nntp_data_t *) hash_find (news->newsgroups, line)) != NULL &&
- m_strcmp(d, data->desc)) {
- p_delete(&data->desc);
- data->desc = m_strdup(d);
- }
- return 0;
-}
-
-static void nntp_get_desc (nntp_data_t * data, const char *mask, char *msg, progress_t* bar)
-{
- char buf[STRING];
-
- if (!option (OPTLOADDESC) || !data || !data->nserv)
- return;
-
- /* Get newsgroup description, if we can */
- if (data->nserv->hasXGTITLE)
- snprintf (buf, sizeof (buf), "XGTITLE %s\r\n", mask);
- else
- snprintf (buf, sizeof (buf), "LIST NEWSGROUPS %s\r\n", mask);
- mutt_nntp_fetch (data, buf, msg, bar, parse_description, data->nserv, 0);
-}
-
-/*
- * XOVER returns a tab separated list of:
- * id|subject|from|date|Msgid|references|bytes|lines|xref
- *
- * This has to duplicate some of the functionality of
- * mutt_read_rfc822_header(), since it replaces the call to that (albeit with
- * a limited number of headers which are "parsed" by placement in the list)
- */
-static int nntp_parse_xover (CONTEXT * ctx, char *buf, HEADER * hdr)
-{
- nntp_data_t *nntp_data = (nntp_data_t *) ctx->data;
- char *p, *b;
- int x, done = 0;
-
- hdr->env = envelope_new();
- hdr->env->newsgroups = m_strdup(nntp_data->group);
- hdr->content = body_new();
- hdr->content->type = TYPETEXT;
- hdr->content->subtype = m_strdup("plain");
- hdr->content->encoding = ENC7BIT;
- hdr->content->disposition = DISPINLINE;
- hdr->content->length = -1;
- b = p = buf;
-
- for (x = 0; !done && x < 9; x++) {
- /* if from file, need to skip newline character */
- while (*p && *p != '\n' && *p != '\t')
- p++;
- if (!*p)
- done++;
- *p = '\0';
- p++;
- switch (x) {
- case 0:
- hdr->article_num = atoi (b);
- nntp_get_status (ctx, hdr, NULL, hdr->article_num);
- break;
- case 1:
- hdr->env->subject = m_strdup(b);
- break;
- case 2:
- address_list_wipe(&hdr->env->from);
- hdr->env->from = rfc822_parse_adrlist (hdr->env->from, b);
- /* same as for mutt_parse_rfc822_line():
- * don't leave from info NULL if there's an invalid address (or
- * whatever) in From: field; mutt would just display it as empty
- * and mark mail/(esp.) news article as your own. aaargh! this
- * bothered me for _years_ */
- if (!hdr->env->from) {
- hdr->env->from = address_new ();
- hdr->env->from->personal = m_strdup(b);
- }
- break;
- case 3:
- hdr->date_sent = mutt_parse_date (b, hdr);
- hdr->received = hdr->date_sent;
- break;
- case 4:
- p_delete(&hdr->env->message_id);
- hdr->env->message_id = m_strdup(b);
- break;
- case 5:
- string_list_wipe(&hdr->env->references);
- hdr->env->references = mutt_parse_references (b, 0);
- break;
- case 6:
- hdr->content->length = atoi (b);
- break;
- case 7:
- hdr->lines = atoi (b);
- break;
- case 8:
- if (!hdr->read)
- p_delete(&hdr->env->xref);
- b = b + 6; /* skips the "Xref: " */
- hdr->env->xref = m_strdup(b);
- nntp_parse_xref (ctx, nntp_data->group, b, hdr);
- }
- rfc2047_decode_envelope(hdr->env);
- if (!*p)
- return -1;
- b = p;
- }
- return 0;
-}
-
-typedef struct {
- CONTEXT *ctx;
- int first;
- int last;
- bits_t messages;
- const char *msg;
-} FETCH_CONTEXT;
-
-static int nntp_fetch_numbers (char *line, void *c)
-{
- FETCH_CONTEXT *fc = c;
-
- if (line) {
- int num = atoi(line);
- if (num < fc->first || num > fc->last)
- return 0;
-
- bit_set(&fc->messages, num);
- }
- return 0;
-}
-
-static int add_xover_line (char *line, void *c)
-{
- int num, total;
- FETCH_CONTEXT *fc = c;
- CONTEXT *ctx = fc->ctx;
- nntp_data_t *data = (nntp_data_t *) ctx->data;
-
- if (!line)
- return 0;
-
- if (ctx->msgcount >= ctx->hdrmax)
- mx_alloc_memory (ctx);
- ctx->hdrs[ctx->msgcount] = header_new();
- ctx->hdrs[ctx->msgcount]->index = ctx->msgcount;
-
- nntp_parse_xover (ctx, line, ctx->hdrs[ctx->msgcount]);
- num = ctx->hdrs[ctx->msgcount]->article_num;
-
- if (num >= fc->first && num <= fc->last) {
- ctx->msgcount++;
- if (num > data->lastLoaded)
- data->lastLoaded = num;
- num = num - fc->first + 1;
- total = fc->last - fc->first + 1;
- if (!ctx->quiet && fc->msg && ReadInc && (num % ReadInc == 0))
- mutt_message ("%s %d/%d", fc->msg, num, total);
- } else {
- header_delete(&ctx->hdrs[ctx->msgcount]); /* skip it */
- }
-
- return 0;
-}
-
-
-static int nntp_fetch_headers(CONTEXT * ctx, int first, int last)
-{
- char buf[HUGE_STRING];
- const char *msg = _("Fetching message headers...");
- const char *msg2 = _("Fetching headers from cache...");
- nntp_data_t *nntp_data = ((nntp_data_t *) ctx->data);
- int ret, num, oldmsgcount, current;
- FILE *f;
- FETCH_CONTEXT fc;
-
- /* if empty group or nothing to do */
- if (!last || first > last)
- return 0;
-
- /* fetch list of articles */
- mutt_message _("Fetching list of articles...");
-
- fc.ctx = ctx;
- fc.first = first;
- fc.last = last;
-
- /* CACHE: must be loaded xover cache here */
- num = nntp_data->lastCached - first + 1;
- if (nntp.use_cache && nntp_data->cache && num > 0) {
- nntp_cache_expand(buf, ssizeof(buf), "%s", nntp_data->cache);
- mutt_message (msg2);
-
- if ((f = safe_fopen (buf, "r"))) {
- int r = 0, c = 0;
-
- /* counting number of lines */
- while (fgets (buf, sizeof (buf), f) != NULL)
- r++;
- rewind (f);
- while (r > num && fgets (buf, sizeof (buf), f) != NULL)
- r--;
- oldmsgcount = ctx->msgcount;
- fc.first = first;
- fc.last = first + num - 1;
- fc.msg = NULL;
- while (fgets (buf, sizeof (buf), f) != NULL) {
- if (ReadInc && ((++c) % ReadInc == 0))
- mutt_message ("%s %d/%d", msg2, c, r);
- add_xover_line (buf, &fc);
- }
- m_fclose(&f);
- nntp_data->lastLoaded = fc.last;
- first = fc.last + 1;
- if (ctx->msgcount > oldmsgcount)
- mx_update_context (ctx, ctx->msgcount - oldmsgcount);
- }
- else
- nntp_delete_cache (nntp_data);
- }
- num = last - first + 1;
- if (num <= 0) {
- return 0;
- }
-
- /*
- * Without XOVER, we have to fetch each article header and parse
- * it. With XOVER, we ask for all of them
- */
- mutt_message (msg);
- if (nntp_data->nserv->hasXOVER) {
- oldmsgcount = ctx->msgcount;
- fc.first = first;
- fc.last = last;
- fc.msg = msg;
- snprintf (buf, sizeof (buf), "XOVER %d-%d\r\n", first, last);
- ret = mutt_nntp_fetch (nntp_data, buf, NULL, NULL, add_xover_line, &fc, 0);
- if (ctx->msgcount > oldmsgcount)
- mx_update_context (ctx, ctx->msgcount - oldmsgcount);
- if (ret != 0) {
- mutt_error (_("XOVER command failed: %s"), buf);
- return -1;
- }
- } else {
- bits_init(&fc.messages);
-
- if (nntp_data->nserv->hasLISTGROUP) {
- snprintf (buf, sizeof (buf), "LISTGROUP %s\r\n", nntp_data->group);
- if (mutt_nntp_fetch(nntp_data, buf, NULL, NULL,
- nntp_fetch_numbers, &fc, 0))
- {
- mutt_error (_("LISTGROUP command failed: %s"), buf);
- sleep (2);
- bits_wipe(&fc.messages);
- return -1;
- }
- } else {
- for (num = first; num <= last; num++)
- bit_set(&fc.messages, num);
- }
-
- for (current = first; current <= last; current++) {
- HEADER *h;
-
- ret = current - first + 1;
- mutt_message ("%s %d/%d", msg, ret, num);
-
- if (!bit_isset(&fc.messages, current))
- continue;
-
- if (ctx->msgcount >= ctx->hdrmax)
- mx_alloc_memory (ctx);
- h = ctx->hdrs[ctx->msgcount] = header_new();
- h->index = ctx->msgcount;
-
- ret = nntp_read_header (ctx, NULL, current);
- if (ret == 0) { /* Got article. Fetch next header */
- nntp_get_status (ctx, h, NULL, h->article_num);
- ctx->msgcount++;
- mx_update_context (ctx, 1);
- }
- else
- header_delete(&h); /* skip it */
- if (ret == -1) {
- bits_wipe(&fc.messages);
- return -1;
- }
-
- if (current > nntp_data->lastLoaded)
- nntp_data->lastLoaded = current;
- }
- bits_wipe(&fc.messages);
- }
-
- nntp_data->lastLoaded = last;
- mutt_clear_error ();
- return 0;
-}
-
-/*
- * currently, nntp "mailbox" is "newsgroup"
- */
-static int nntp_open_mailbox (CONTEXT * ctx)
-{
- nntp_data_t *nntp_data;
- nntp_server_t *serv;
- char buf[HUGE_STRING];
- char server[LONG_STRING];
- int count = 0, first;
- ACCOUNT act;
-
- p_clear(&act, 1);
-
- if (nntp_parse_url (ctx->path, &act, buf, sizeof (buf)) < 0 || !*buf) {
- mutt_error (_("%s is an invalid newsgroup specification!"), ctx->path);
- mutt_sleep (2);
- return -1;
- }
-
- server[0] = '\0';
- nntp_expand_path (server, sizeof (server), &act);
- if (!(serv = mutt_select_newsserver (server)) || serv->status != NNTP_OK)
- return -1;
-
- CurrentNewsSrv = serv;
-
- /* create NNTP-specific state struct if nof found in list */
- if ((nntp_data = hash_find(serv->newsgroups, buf)) == NULL) {
- nntp_data = nntp_data_new();
- nntp_data->group = m_strdup(buf);
- hash_insert(serv->newsgroups, nntp_data->group, nntp_data);
- serv->tail = nntp_data_list_append(serv->tail, nntp_data);
- }
- ctx->data = nntp_data;
- nntp_data->nserv = serv;
-
- mutt_message (_("Selecting %s..."), nntp_data->group);
-
- if (!nntp_data->desc) {
- nntp_get_desc (nntp_data, nntp_data->group, NULL, NULL);
- if (nntp_data->desc)
- nntp_save_cache_index (serv);
- }
-
- buf[0] = 0;
- if (mutt_nntp_query (nntp_data, buf, sizeof (buf)) < 0) {
- return -1;
- }
-
- if (m_strncmp("211", buf, 3)) {
- nntp_data_t **l;
-
- /* GROUP command failed */
- if (!m_strncmp("411", buf, 3)) {
- mutt_error (_("Newsgroup %s not found on server %s"),
- nntp_data->group, serv->conn->account.host);
-
- /* CACHE: delete cache and line from .index */
- nntp_delete_cache (nntp_data);
- hash_remove(serv->newsgroups, nntp_data->group, NULL, NULL);
- for (l = &serv->list; *l; l = &(*l)->next) {
- if ((*l) == nntp_data) {
- nntp_data_list_pop(l);
- nntp_data_delete(&nntp_data);
- if (!*l)
- serv->tail = l;
- break;
- }
- }
- nntp_data_delete(&nntp_data);
- sleep (2);
- }
-
- return -1;
- }
-
- sscanf (buf + 4, "%d %u %u %s", &count, &nntp_data->first,
- &nntp_data->last, buf);
-
- nntp_data->deleted = 0;
-
- time (&serv->check_time);
-
- /*
- * Check for max adding context. If it is greater than $nntp_context,
- * strip off extra articles
- */
- first = nntp_data->first;
- if (NntpContext && nntp_data->last - first + 1 > NntpContext)
- first = nntp_data->last - NntpContext + 1;
- if (first)
- nntp_data->lastLoaded = first - 1;
- return nntp_fetch_headers (ctx, first, nntp_data->last);
-}
-
-int nntp_fetch_message (MESSAGE * msg, CONTEXT * ctx, int msgno)
-{
- char buf[LONG_STRING];
- char path[_POSIX_PATH_MAX];
- NNTP_CACHE *cache;
- int ret;
- progress_t bar;
-
- /* see if we already have the message in our cache */
- cache =
- &((nntp_data_t *) ctx->data)->acache[ctx->hdrs[msgno]->index %
- NNTP_CACHE_LEN];
-
- /* if everything is fine, assign msg->fp and return */
- if (cache->path && cache->index == ctx->hdrs[msgno]->index &&
- (msg->fp = fopen (cache->path, "r")))
- return 0;
-
- /* clear the previous entry */
- unlink (cache->path);
- p_delete(&cache->path);
-
- cache->index = ctx->hdrs[msgno]->index;
- msg->fp = m_tempfile(path, sizeof(path), NONULL(mod_core.tmpdir), NULL);
- if (!msg->fp) {
- return -1;
- }
- cache->path = m_strdup(path);
-
- if (ctx->hdrs[msgno]->article_num == 0)
- snprintf (buf, sizeof (buf), "ARTICLE %s\r\n",
- ctx->hdrs[msgno]->env->message_id);
- else
- snprintf (buf, sizeof (buf), "ARTICLE %d\r\n",
- ctx->hdrs[msgno]->article_num);
-
- bar.msg = _("Fetching message...");
- bar.size = 0;
- mutt_progress_bar (&bar, 0);
-
- ret = mutt_nntp_fetch ((nntp_data_t *) ctx->data, buf, NULL, &bar, nntp_read_tempfile,
- msg->fp, ctx->tagged);
- if (ret == 1) {
- mutt_error (_("Article %d not found on server"),
- ctx->hdrs[msgno]->article_num);
- }
-
- if (ret) {
- m_fclose(&msg->fp);
- unlink (path);
- p_delete(&cache->path);
- return -1;
- }
-
- envelope_delete(&ctx->hdrs[msgno]->env);
- ctx->hdrs[msgno]->env =
- mutt_read_rfc822_header (msg->fp, ctx->hdrs[msgno], 0, 0);
- /* fix content length */
- fseeko (msg->fp, 0, SEEK_END);
- ctx->hdrs[msgno]->content->length = ftello (msg->fp) -
- ctx->hdrs[msgno]->content->offset;
-
- /* this is called in mutt before the open which fetches the message,
- * which is probably wrong, but we just call it again here to handle
- * the problem instead of fixing it.
- */
- mutt_parse_mime_message (ctx, ctx->hdrs[msgno]);
-
- /* These would normally be updated in mx_update_context(), but the
- * full headers aren't parsed with XOVER, so the information wasn't
- * available then.
- */
- ctx->hdrs[msgno]->security = crypt_query (ctx->hdrs[msgno]->content);
-
- mutt_clear_error ();
- rewind (msg->fp);
-
- return 0;
-}
-
-/* Post article */
-int nntp_post (const char *msg)
-{
- char buf[LONG_STRING];
- size_t len;
- FILE *f;
- nntp_data_t *nntp_data;
-
- if (Context && Context->magic == M_NNTP)
- nntp_data = (nntp_data_t *)Context->data;
- else {
- if (!(CurrentNewsSrv = mutt_select_newsserver(NewsServer)) ||
- !CurrentNewsSrv->list)
- {
- mutt_error (_("Can't post article. No connection to news server."));
- return -1;
- }
- nntp_data = CurrentNewsSrv->list;
- }
-
- if (!(f = safe_fopen (msg, "r"))) {
- mutt_error (_("Can't post article. Unable to open %s"), msg);
- return -1;
- }
-
- m_strcpy(buf, sizeof(buf), "POST\r\n");
- if (mutt_nntp_query (nntp_data, buf, sizeof (buf)) < 0) {
- mutt_error (_("Can't post article. Connection to %s lost."),
- nntp_data->nserv->conn->account.host);
- return -1;
- }
- if (buf[0] != '3') {
- mutt_error (_("Can't post article: %s"), buf);
- return -1;
- }
-
- buf[0] = '.';
- buf[1] = '\0';
- while (fgets (buf + 1, sizeof (buf) - 2, f) != NULL) {
- len = m_strlen(buf);
- if (buf[len - 1] == '\n') {
- buf[len - 1] = '\r';
- buf[len] = '\n';
- len++;
- buf[len] = '\0';
- }
- if (buf[1] == '.')
- mutt_socket_write(nntp_data->nserv->conn, buf);
- else
- mutt_socket_write(nntp_data->nserv->conn, buf + 1);
- }
- m_fclose(&f);
-
- if (buf[m_strlen(buf) - 1] != '\n')
- mutt_socket_write(nntp_data->nserv->conn, "\r\n");
- mutt_socket_write(nntp_data->nserv->conn, ".\r\n");
- if (mutt_socket_readln (buf, sizeof (buf), nntp_data->nserv->conn) < 0) {
- mutt_error (_("Can't post article. Connection to %s lost."),
- nntp_data->nserv->conn->account.host);
- return -1;
- }
- if (buf[0] != '2') {
- mutt_error (_("Can't post article: %s"), buf);
- return -1;
- }
-
- return 0;
-}
-
-/* nntp_logout_all: close all open connections. */
-void nntp_logout_all (void)
-{
- char buf[LONG_STRING];
- CONNECTION *conn;
-
- conn = mutt_socket_head ();
-
- while (conn) {
- CONNECTION* next = conn->next;
- if (conn->account.type == M_ACCT_TYPE_NNTP) {
- mutt_message (_("Closing connection to %s..."), conn->account.host);
- mutt_socket_write (conn, "QUIT\r\n");
- mutt_socket_readln (buf, sizeof (buf), conn);
- mutt_clear_error ();
- mutt_socket_close (conn);
- mutt_socket_free (conn);
- }
- conn = next;
- }
-}
-
-static int nntp_sync_mailbox (CONTEXT * ctx, int unused1, int* unused2)
-{
- nntp_data_t *data = ctx->data;
-
- nntp_save_cache_group(ctx);
- nntp_free_acache(data);
-
- data->nserv->check_time = 0; /* next nntp_check_mailbox() will really check */
- return 0;
-}
-
-static void nntp_fastclose_mailbox (CONTEXT * ctx)
-{
- nntp_data_t *data = (nntp_data_t *) ctx->data, *tmp;
-
- if (!data)
- return;
- nntp_free_acache (data);
- if (!data->nserv || !data->nserv->newsgroups || !data->group)
- return;
- nntp_save_cache_index (data->nserv);
- if ((tmp = hash_find (data->nserv->newsgroups, data->group)) == NULL
- || tmp != data)
- nntp_data_delete(&data);
- else
- nntp_sync_sidebar (data);
-}
-
-/* commit changes and terminate connection */
-int nntp_close_mailbox (CONTEXT * ctx)
-{
- if (!ctx)
- return -1;
- mutt_message _("Quitting newsgroup...");
-
- if (ctx->data) {
- nntp_data_t *data = (nntp_data_t *) ctx->data;
- int ret;
-
- if (data->nserv && data->nserv->conn && ctx->unread) {
- ret = query_quadoption (OPT_CATCHUP, _("Mark all articles read?"));
- if (ret == M_YES)
- mutt_newsgroup_catchup (data->nserv, data->group);
- else if (ret < 0)
- return -1;
- }
- }
- nntp_sync_mailbox (ctx, 0, NULL);
- if (ctx->data && ((nntp_data_t *) ctx->data)->nserv) {
- nntp_server_t *news;
-
- news = ((nntp_data_t *) ctx->data)->nserv;
- newsrc_gen_entries (ctx);
- ((nntp_data_t *) ctx->data)->unread = ctx->unread;
- mutt_newsrc_update (news);
- }
- mutt_clear_error ();
- return 0;
-}
-
-/* use the GROUP command to poll for new mail */
-static int _nntp_check_mailbox (CONTEXT * ctx, nntp_data_t * nntp_data)
-{
- char buf[LONG_STRING];
- int count = 0;
-
- if (nntp_data->nserv->check_time + NewsPollTimeout > time (NULL))
- return 0;
-
- buf[0] = 0;
- if (mutt_nntp_query (nntp_data, buf, sizeof (buf)) < 0) {
- return -1;
- }
- if (m_strncmp("211", buf, 3)) {
- buf[0] = 0;
- if (mutt_nntp_query (nntp_data, buf, sizeof (buf)) < 0) {
- return -1;
- }
- }
- if (!m_strncmp("211", buf, 3)) {
- int first;
- int last;
-
- sscanf (buf + 4, "%d %d %d", &count, &first, &last);
- nntp_data->first = first;
- nntp_data->last = last;
- if (ctx && last > nntp_data->lastLoaded) {
- nntp_fetch_headers (ctx, nntp_data->lastLoaded + 1, last);
- time (&nntp_data->nserv->check_time);
- return 1;
- }
- if (!last || (!nntp_data->rc && !nntp_data->lastCached))
- nntp_data->unread = count;
- else
- mutt_newsgroup_stat (nntp_data);
- /* active was renumbered? */
- if (last < nntp_data->lastLoaded) {
- if (!nntp_data->max) {
- nntp_data->entries = p_new(NEWSRC_ENTRY, 5);
- nntp_data->max = 5;
- }
- nntp_data->lastCached = 0;
- nntp_data->num = 1;
- nntp_data->entries[0].first = 1;
- nntp_data->entries[0].last = 0;
- }
- nntp_sync_sidebar (nntp_data);
- }
-
- time (&nntp_data->nserv->check_time);
- return 0;
-}
-
-static int nntp_check_mailbox (CONTEXT * ctx, int* unused1, int unused2)
-{
- return _nntp_check_mailbox (ctx, (nntp_data_t *) ctx->data);
-}
-
-static int nntp_check_newgroups (nntp_server_t * serv, int force)
-{
- char buf[LONG_STRING];
- nntp_data_t nntp_data;
- nntp_data_t *l, **emp;
- time_t now;
- struct tm *t;
-
- if (!serv || !serv->newgroups_time)
- return -1;
-
- if (nntp_open_connection (serv) < 0)
- return -1;
-
- /* check subscribed groups for new news */
- if (option (OPTSHOWNEWNEWS)) {
- mutt_message _("Checking for new messages...");
-
- for (l = serv->list; l; l = l->next) {
- serv->check_time = 0; /* really check! */
- if (l->subscribed)
- _nntp_check_mailbox (NULL, l);
- }
- sidebar_draw ();
- }
- else if (!force)
- return 0;
-
- mutt_message _("Checking for new newsgroups...");
-
- now = serv->newgroups_time;
- time (&serv->newgroups_time);
- t = gmtime (&now);
- snprintf (buf, sizeof (buf), "NEWGROUPS %02d%02d%02d %02d%02d%02d GMT\r\n",
- (t->tm_year % 100), t->tm_mon + 1, t->tm_mday, t->tm_hour,
- t->tm_min, t->tm_sec);
- nntp_data.nserv = serv;
- if (Context && Context->magic == M_NNTP)
- nntp_data.group = ((nntp_data_t *) Context->data)->group;
- else
- nntp_data.group = NULL;
-
- emp = nntp_data_list_last(&serv->list);
- if (mutt_nntp_fetch (&nntp_data, buf, _("Adding new newsgroups..."), NULL,
- add_group, serv, 0) != 0) {
- return -1;
- }
-
- mutt_message _("Loading descriptions...");
-
- for (l = *emp; l; l = l->next) {
- l->new = 1;
- nntp_get_desc(l, l->group, NULL, NULL);
- }
- if (*emp)
- nntp_save_cache_index(serv);
- mutt_clear_error();
- return nntp.checked;
-}
-
-/* Load list of all newsgroups from active */
-int nntp_get_active (nntp_server_t * serv)
-{
- char msg[STRING];
- nntp_data_t nntp_data, **tmp = &serv->list;
-
- if (nntp_open_connection (serv) < 0)
- return -1;
-
- snprintf (msg, sizeof (msg),
- _("Loading list of all newsgroups on server %s..."),
- serv->conn->account.host);
- mutt_message (msg);
- time (&serv->newgroups_time);
- nntp_data.nserv = serv;
- nntp_data.group = NULL;
-
- if (mutt_nntp_fetch (&nntp_data, "LIST\r\n", msg, NULL, add_group, serv, 0) < 0) {
- return -1;
- }
-
- m_strcpy(msg, sizeof(msg), _("Loading descriptions..."));
- mutt_message (msg);
- nntp_get_desc (&nntp_data, "*", msg, NULL);
-
- while (*tmp) {
- if ((*tmp)->deleted && !(*tmp)->rc) {
- nntp_data_t *d = nntp_data_list_pop(tmp);
- nntp_delete_cache(d);
- hash_remove(serv->newsgroups, d->group, NULL, NULL);
- nntp_data_delete(&d);
- } else {
- tmp = &(*tmp)->next;
- }
- }
- serv->tail = tmp;
- nntp_save_cache_index(serv);
-
- mutt_clear_error ();
- return nntp.checked;
-}
-
-/*
- * returns -1 if error ocurred while retrieving header,
- * number of articles which ones exist in context on success.
- */
-int nntp_check_msgid (CONTEXT * ctx, const char *msgid)
-{
- int ret;
-
- /* if msgid is already in context, don't reload them */
- if (hash_find (ctx->id_hash, msgid))
- return 1;
- if (ctx->msgcount == ctx->hdrmax)
- mx_alloc_memory (ctx);
- ctx->hdrs[ctx->msgcount] = header_new();
- ctx->hdrs[ctx->msgcount]->index = ctx->msgcount;
-
- mutt_message (_("Fetching %s from server..."), msgid);
- ret = nntp_read_header (ctx, msgid, 0);
- /* since nntp_read_header() may set read flag, we must reset it */
- ctx->hdrs[ctx->msgcount]->read = 0;
- if (ret != 0)
- header_delete(&ctx->hdrs[ctx->msgcount]);
- else {
- ctx->msgcount++;
- mx_update_context (ctx, 1);
- ctx->changed = 1;
- }
- return ret;
-}
-
-typedef struct {
- CONTEXT *ctx;
- int num;
- int max;
- int *child;
-} CHILD_CONTEXT;
-
-static int check_children (char *s, void *c)
-{
- CHILD_CONTEXT *cc = c;
- int i, n;
-
- if (!s || (n = atoi (s)) == 0)
- return 0;
- for (i = 0; i < cc->ctx->msgcount; i++)
- if (cc->ctx->hdrs[i]->article_num == n)
- return 0;
- if (cc->num >= cc->max)
- p_realloc(&cc->child, cc->max += 25);
- cc->child[cc->num++] = n;
-
- return 0;
-}
-
-int nntp_check_children (CONTEXT * ctx, const char *msgid)
-{
- nntp_data_t *nntp_data = (nntp_data_t *) ctx->data;
- char buf[STRING];
- int i, ret = 0, tmp = 0;
- CHILD_CONTEXT cc = { ctx, 0, 0, NULL };
-
- if (!nntp_data || !nntp_data->nserv || !nntp_data->nserv->conn ||
- !nntp_data->nserv->conn->account.host)
- return -1;
- if (nntp_data->first > nntp_data->lastLoaded)
- return 0;
- if (!nntp_data->nserv->hasXPAT) {
- mutt_error (_("Server %s does not support this operation!"),
- nntp_data->nserv->conn->account.host);
- return -1;
- }
-
- snprintf (buf, sizeof (buf), "XPAT References %d-%d *%s*\r\n",
- nntp_data->first, nntp_data->lastLoaded, msgid);
-
- if (mutt_nntp_fetch (nntp_data, buf, NULL, NULL, check_children, &cc, 0)) {
- p_delete(&cc.child);
- return -1;
- }
-
- /* dont try to read the xover cache. check_children() already
- * made sure that we dont have the article, so we need to visit
- * the server. Reading the cache at this point is also bad
- * because it would duplicate messages */
- if (nntp.use_cache) {
- tmp++;
- nntp.use_cache = false;
- }
- for (i = 0; i < cc.num; i++) {
- if ((ret = nntp_fetch_headers (ctx, cc.child[i], cc.child[i])))
- break;
- if (ctx->msgcount &&
- ctx->hdrs[ctx->msgcount - 1]->article_num == cc.child[i])
- ctx->hdrs[ctx->msgcount - 1]->read = 0;
- }
- if (tmp)
- nntp.use_cache = true;
- p_delete(&cc.child);
- return ret;
-}
-
-static int nntp_is_magic (const char* path, struct stat* st) {
- url_scheme_t s = url_check_scheme(NONULL(path));
- return s == U_NNTP || s == U_NNTPS ? M_NNTP : -1;
-}
-
-static int acl_check_nntp (CONTEXT* ctx, int bit) {
- switch (bit) {
- case ACL_INSERT: /* editing messages */
- case ACL_WRITE: /* change importance */
- return (0);
- case ACL_DELETE: /* (un)deletion */
- case ACL_SEEN: /* mark as read */
- return (1);
- default:
- return (0);
- }
-}
-
-mx_t const nntp_mx = {
- M_NNTP,
- 0,
- nntp_is_magic,
- NULL,
- NULL,
- nntp_open_mailbox,
- NULL,
- acl_check_nntp,
- nntp_check_mailbox,
- nntp_fastclose_mailbox,
- nntp_sync_mailbox,
- NULL,
-};
-
-/* }}} */