/* File Transfer Protocol support.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+ 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
+ Inc.
This file is part of GNU Wget.
#include <stdlib.h>
#include <string.h>
#include <strings.h>
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include <unistd.h>
#include <assert.h>
#include <errno.h>
#include <time.h>
#include "netrc.h"
#include "convert.h" /* for downloaded_file */
#include "recur.h" /* for INFINITE_RECURSION */
+#include "warc.h"
#ifdef __VMS
# include "vms.h"
/* Retrieves a file with denoted parameters through opening an FTP
connection to the server. It always closes the data connection,
- and closes the control connection in case of error. */
+ and closes the control connection in case of error. If warc_tmp
+ is non-NULL, the downloaded data will be written there as well. */
static uerr_t
getftp (struct url *u, wgint passed_expected_bytes, wgint *qtyread,
- wgint restval, ccon *con)
+ wgint restval, ccon *con, int count, FILE *warc_tmp)
{
int csock, dtsock, local_sock, res;
uerr_t err = RETROK; /* appease the compiler */
FILE *fp;
- char *user, *passwd, *respline;
- char *tms;
- const char *tmrate;
+ char *respline, *tms;
+ const char *user, *passwd, *tmrate;
int cmd = con->cmd;
bool pasv_mode_open = false;
wgint expected_bytes = 0;
+ bool got_expected_bytes = false;
bool rest_failed = false;
int flags;
wgint rd_size;
{
char *host = con->proxy ? con->proxy->host : u->host;
int port = con->proxy ? con->proxy->port : u->port;
- char *logname = user;
-
- if (con->proxy)
- {
- /* If proxy is in use, log in as username@target-site. */
- logname = concat_strings (user, "@", u->host, (char *) 0);
- }
/* Login to the server: */
csock = connect_to_host (host, port);
if (csock == E_HOST)
- return HOSTERR;
+ return HOSTERR;
else if (csock < 0)
- return (retryable_socket_connect_error (errno)
- ? CONERROR : CONIMPOSSIBLE);
+ return (retryable_socket_connect_error (errno)
+ ? CONERROR : CONIMPOSSIBLE);
if (cmd & LEAVE_PENDING)
con->csock = csock;
quotearg_style (escape_quoting_style, user));
if (opt.server_response)
logputs (LOG_ALWAYS, "\n");
- err = ftp_login (csock, logname, passwd);
-
if (con->proxy)
- xfree (logname);
+ {
+ /* If proxy is in use, log in as username@target-site. */
+ char *logname = concat_strings (user, "@", u->host, (char *) 0);
+ err = ftp_login (csock, logname, passwd);
+ xfree (logname);
+ }
+ else
+ err = ftp_login (csock, user, passwd);
/* FTPRERR, FTPSRVERR, WRITEFAILED, FTPLOGREFUSED, FTPLOGINC */
switch (err)
logputs (LOG_VERBOSE, _("==> CWD not needed.\n"));
else
{
- char *targ;
- int cwd_count;
- int cwd_end;
- int cwd_start;
+ const char *targ = NULL;
+ int cwd_count;
+ int cwd_end;
+ int cwd_start;
char *target = u->dir;
The VMS restriction may be relaxed when the squirrely code
above is reformed.
*/
- if ((con->rs == ST_VMS) && (target[0] != '/'))
- {
- cwd_start = 0;
- DEBUGP (("Using two-step CWD for relative path.\n"));
- }
- else
- {
+ if ((con->rs == ST_VMS) && (target[0] != '/'))
+ {
+ cwd_start = 0;
+ DEBUGP (("Using two-step CWD for relative path.\n"));
+ }
+ else
+ {
/* Go straight to the target. */
- cwd_start = 1;
- }
+ cwd_start = 1;
+ }
/* At least one VMS FTP server (TCPware V5.6-2) can switch to
a UNIX emulation mode when given a UNIX-like directory
Unlike the rest of this block, this particular behavior
_is_ VMS-specific, so it gets its own VMS test.
*/
- if ((con->rs == ST_VMS) && (strchr( target, '/') != NULL))
+ if ((con->rs == ST_VMS) && (strchr( target, '/') != NULL))
{
cwd_end = 3;
- DEBUGP (("Using extra \"CWD []\" step for VMS server.\n"));
+ DEBUGP (("Using extra \"CWD []\" step for VMS server.\n"));
}
else
{
/* 2004-09-20 SMS. */
/* Sorry about the deviant indenting. Laziness. */
- for (cwd_count = cwd_start; cwd_count < cwd_end; cwd_count++)
- {
+ for (cwd_count = cwd_start; cwd_count < cwd_end; cwd_count++)
+ {
switch (cwd_count)
{
case 0:
- /* Step one (optional): Go to the initial directory,
- exactly as reported by the server.
- */
- targ = con->id;
+ /* Step one (optional): Go to the initial directory,
+ exactly as reported by the server.
+ */
+ targ = con->id;
break;
case 1:
- /* Step two: Go to the target directory. (Absolute or
- relative will work now.)
- */
- targ = target;
+ /* Step two: Go to the target directory. (Absolute or
+ relative will work now.)
+ */
+ targ = target;
break;
case 2:
default:
/* Can't happen. */
assert (1);
- }
+ }
if (!opt.server_response)
logprintf (LOG_VERBOSE, "==> CWD (%d) %s ... ", cwd_count,
con->csock = -1;
return err;
case FTPOK:
+ got_expected_bytes = true;
/* Everything is OK. */
break;
default:
number_to_static_string (expected_bytes));
}
+ if (cmd & DO_RETR && restval > 0 && restval == expected_bytes)
+ {
+ /* Server confirms that file has length restval. We should stop now.
+ Some servers (f.e. NcFTPd) return error when receive REST 0 */
+ logputs (LOG_VERBOSE, _("File has already been retrieved.\n"));
+ fd_close (csock);
+ con->csock = -1;
+ return RETRFINISHED;
+ }
+
/* If anything is to be retrieved, PORT (or PASV) must be sent. */
if (cmd & (DO_LIST | DO_RETR))
{
if (cmd & DO_RETR)
{
/* If we're in spider mode, don't really retrieve anything except
- the directory listing and verify whether the given "file" exists. */
+ the directory listing and verify whether the given "file" exists. */
if (opt.spider)
{
- bool exists = false;
- uerr_t res;
- struct fileinfo *f;
- res = ftp_get_listing (u, con, &f);
- /* Set the DO_RETR command flag again, because it gets unset when
- calling ftp_get_listing() and would otherwise cause an assertion
- failure earlier on when this function gets repeatedly called
- (e.g., when recursing). */
- con->cmd |= DO_RETR;
- if (res == RETROK)
- {
- while (f)
- {
- if (!strcmp (f->name, u->file))
- {
- exists = true;
- break;
- }
- f = f->next;
- }
+ bool exists = false;
+ uerr_t res;
+ struct fileinfo *f;
+ res = ftp_get_listing (u, con, &f);
+ /* Set the DO_RETR command flag again, because it gets unset when
+ calling ftp_get_listing() and would otherwise cause an assertion
+ failure earlier on when this function gets repeatedly called
+ (e.g., when recursing). */
+ con->cmd |= DO_RETR;
+ if (res == RETROK)
+ {
+ while (f)
+ {
+ if (!strcmp (f->name, u->file))
+ {
+ exists = true;
+ break;
+ }
+ f = f->next;
+ }
if (exists)
{
logputs (LOG_VERBOSE, "\n");
logprintf (LOG_NOTQUIET, _("File %s exists.\n"),
quote (u->file));
}
- else
+ else
{
- logputs (LOG_VERBOSE, "\n");
- logprintf (LOG_NOTQUIET, _("No such file %s.\n"),
- quote (u->file));
- }
- }
+ logputs (LOG_VERBOSE, "\n");
+ logprintf (LOG_NOTQUIET, _("No such file %s.\n"),
+ quote (u->file));
+ }
+ }
fd_close (csock);
con->csock = -1;
fd_close (dtsock);
if (!opt.server_response)
logputs (LOG_VERBOSE, _("done.\n"));
- expected_bytes = ftp_expected_bytes (ftp_last_respline);
+
+ if (! got_expected_bytes)
+ expected_bytes = ftp_expected_bytes (ftp_last_respline);
} /* do retrieve */
if (cmd & DO_LIST)
}
if (!opt.server_response)
logputs (LOG_VERBOSE, _("done.\n"));
- expected_bytes = ftp_expected_bytes (ftp_last_respline);
+
+ if (! got_expected_bytes)
+ expected_bytes = ftp_expected_bytes (ftp_last_respline);
} /* cmd & DO_LIST */
if (!(cmd & (DO_LIST | DO_RETR)) || (opt.spider && !(cmd & DO_LIST)))
Elsewhere, define a constant "binary" flag.
Isn't it nice to have distinct text and binary file types?
*/
-# define BIN_TYPE_TRANSFER (type_char != 'A')
+/* 2011-09-30 SMS.
+ Added listing files to the set of non-"binary" (text, Stream_LF)
+ files. (Wget works either way, but other programs, like, say, text
+ editors, work better on listing files which have text attributes.)
+ Now we use "binary" attributes for a binary ("IMAGE") transfer,
+ unless "--ftp-stmlf" was specified, and we always use non-"binary"
+ (text, Stream_LF) attributes for a listing file, or for an ASCII
+ transfer.
+ Tidied the VMS-specific BIN_TYPE_xxx macros, and changed the call to
+ fopen_excl() (restored?) to use BIN_TYPE_FILE instead of "true".
+*/
#ifdef __VMS
+# define BIN_TYPE_TRANSFER (type_char != 'A')
+# define BIN_TYPE_FILE \
+ ((!(cmd & DO_LIST)) && BIN_TYPE_TRANSFER && (opt.ftp_stmlf == 0))
# define FOPEN_OPT_ARGS "fop=sqo", "acc", acc_cb, &open_id
# define FOPEN_OPT_ARGS_BIN "ctx=bin,stm", "rfm=fix", "mrs=512" FOPEN_OPT_ARGS
-# define BIN_TYPE_FILE (BIN_TYPE_TRANSFER && (opt.ftp_stmlf == 0))
#else /* def __VMS */
-# define BIN_TYPE_FILE 1
+# define BIN_TYPE_FILE true
#endif /* def __VMS [else] */
if (restval && !(con->cmd & DO_LIST))
#endif /* def __VMS [else] */
}
else if (opt.noclobber || opt.always_rest || opt.timestamping || opt.dirstruct
- || opt.output_document)
+ || opt.output_document || count > 0)
{
+ if (opt.unlink && file_exists_p (con->target))
+ {
+ int res = unlink (con->target);
+ if (res < 0)
+ {
+ logprintf (LOG_NOTQUIET, "%s: %s\n", con->target,
+ strerror (errno));
+ fd_close (csock);
+ con->csock = -1;
+ fd_close (dtsock);
+ fd_close (local_sock);
+ return UNLINKERR;
+ }
+ }
+
#ifdef __VMS
int open_id;
}
else
{
- fp = fopen_excl (con->target, true);
+ fp = fopen_excl (con->target, BIN_TYPE_FILE);
if (!fp && errno == EEXIST)
{
/* We cannot just invent a new name and use it (which is
rd_size = 0;
res = fd_read_body (dtsock, fp,
expected_bytes ? expected_bytes - restval : 0,
- restval, &rd_size, qtyread, &con->dltime, flags);
+ restval, &rd_size, qtyread, &con->dltime, flags, warc_tmp);
tms = datetime_str (time (NULL));
tmrate = retr_rate (rd_size, con->dltime);
if (!output_stream || con->cmd & DO_LIST)
fclose (fp);
- /* If fd_read_body couldn't write to fp, bail out. */
- if (res == -2)
+ /* If fd_read_body couldn't write to fp or warc_tmp, bail out. */
+ if (res == -2 || (warc_tmp != NULL && res == -3))
{
logprintf (LOG_NOTQUIET, _("%s: %s, closing control connection.\n"),
con->target, strerror (errno));
fd_close (csock);
con->csock = -1;
fd_close (dtsock);
- return FWRITEERR;
+ if (res == -2)
+ return FWRITEERR;
+ else if (res == -3)
+ return WARC_TMP_FWRITEERR;
}
else if (res == -1)
{
logprintf (LOG_ALWAYS, "%s: %s\n", con->target, strerror (errno));
else
{
- char *line;
- /* The lines are being read with read_whole_line because of
+ char *line = NULL;
+ size_t bufsize = 0;
+ ssize_t len;
+
+ /* The lines are being read with getline because of
no-buffering on opt.lfile. */
- while ((line = read_whole_line (fp)) != NULL)
+ while ((len = getline (&line, &bufsize, fp)) > 0)
{
- char *p = strchr (line, '\0');
- while (p > line && (p[-1] == '\n' || p[-1] == '\r'))
- *--p = '\0';
+ while (len > 0 && (line[len - 1] == '\n' || line[len - 1] == '\r'))
+ line[--len] = '\0';
logprintf (LOG_ALWAYS, "%s\n",
quotearg_style (escape_quoting_style, line));
- xfree (line);
}
+ xfree (line);
fclose (fp);
}
} /* con->cmd & DO_LIST && server_response */
uerr_t err;
struct_stat st;
+ /* Declare WARC variables. */
+ bool warc_enabled = (opt.warc_filename != NULL);
+ FILE *warc_tmp = NULL;
+ ip_address *warc_ip = NULL;
+
/* Get the target, and set the name for the message accordingly. */
if ((f == NULL) && (con->target))
{
else
{
/* URL-derived file. Consider "-O file" name. */
- con->target = url_file_name (u);
+ con->target = url_file_name (u, NULL);
if (!opt.output_document)
locf = con->target;
else
/* If the output_document was given, then this check was already done and
the file didn't exist. Hence the !opt.output_document */
- if (opt.noclobber && !opt.output_document && file_exists_p (con->target))
+
+ /* If we receive .listing file it is necessary to determine system type of the ftp
+ server even if opn.noclobber is given. Thus we must ignore opt.noclobber in
+ order to establish connection with the server and get system type. */
+ if (opt.noclobber && !opt.output_document && file_exists_p (con->target)
+ && !((con->cmd & DO_LIST) && !(con->cmd & DO_RETR)))
{
logprintf (LOG_VERBOSE,
_("File %s already there; not retrieving.\n"), quote (con->target));
orig_lp = con->cmd & LEAVE_PENDING ? 1 : 0;
+ /* For file RETR requests, we can write a WARC record.
+ We record the file contents to a temporary file. */
+ if (warc_enabled && (con->cmd & DO_RETR))
+ {
+ warc_tmp = warc_tempfile ();
+ if (warc_tmp == NULL)
+ return WARC_TMP_FOPENERR;
+
+ if (!con->proxy && con->csock != -1)
+ {
+ warc_ip = (ip_address *) alloca (sizeof (ip_address));
+ socket_ip_address (con->csock, warc_ip, ENDPOINT_PEER);
+ }
+ }
+
/* THE loop. */
do
{
xfree (hurl);
}
/* Send getftp the proper length, if fileinfo was provided. */
- if (f)
+ if (f && f->type != FT_SYMLINK)
len = f->size;
else
len = 0;
- err = getftp (u, len, &qtyread, restval, con);
+
+ /* If we are working on a WARC record, getftp should also write
+ to the warc_tmp file. */
+ err = getftp (u, len, &qtyread, restval, con, count, warc_tmp);
if (con->csock == -1)
con->st &= ~DONE_CWD;
{
case HOSTERR: case CONIMPOSSIBLE: case FWRITEERR: case FOPENERR:
case FTPNSFOD: case FTPLOGINC: case FTPNOPASV: case CONTNOTSUPPORTED:
+ case UNLINKERR: case WARC_TMP_FWRITEERR:
/* Fatal errors, give up. */
+ if (warc_tmp != NULL)
+ fclose (warc_tmp);
return err;
case CONSOCKERR: case CONERROR: case FTPSRVERR: case FTPRERR:
case WRITEFAILED: case FTPUNKNOWNTYPE: case FTPSYSERR:
{
/* Re-determine the file name. */
xfree_null (con->target);
- con->target = url_file_name (u);
+ con->target = url_file_name (u, NULL);
locf = con->target;
}
continue;
xfree (hurl);
}
+ if (warc_enabled && (con->cmd & DO_RETR))
+ {
+ /* Create and store a WARC resource record for the retrieved file. */
+ bool warc_res;
+
+ warc_res = warc_write_resource_record (NULL, u->url, NULL, NULL,
+ warc_ip, NULL, warc_tmp, -1);
+ if (! warc_res)
+ return WARC_ERR;
+
+ /* warc_write_resource_record has also closed warc_tmp. */
+ }
+
if ((con->cmd & DO_LIST))
/* This is a directory listing file. */
{
/* Find the listing file name. We do it by taking the file name of
the URL and replacing the last component with the listing file
name. */
- uf = url_file_name (u);
+ uf = url_file_name (u, NULL);
lf = file_merge (uf, LIST_FILENAME);
xfree (uf);
DEBUGP ((_("Using %s as listing tmp file.\n"), quote (lf)));
ofile = xstrdup (u->file);
url_set_file (u, f->name);
- con->target = url_file_name (u);
+ con->target = url_file_name (u, NULL);
err = RETROK;
dlthis = true;
set_local_file (&actual_target, con->target);
- /* If downloading a plain file, set valid (non-zero) permissions. */
- if (dlthis && (actual_target != NULL) && (f->type == FT_PLAINFILE))
+ /* If downloading a plain file, and the user requested it, then
+ set valid (non-zero) permissions. */
+ if (dlthis && (actual_target != NULL) &&
+ (f->type == FT_PLAINFILE) && opt.preserve_perm)
{
if (f->perms)
chmod (actual_target, f->perms);
xfree (ofile);
/* Break on fatals. */
- if (err == QUOTEXC || err == HOSTERR || err == FWRITEERR)
+ if (err == QUOTEXC || err == HOSTERR || err == FWRITEERR
+ || err == WARC_ERR || err == WARC_TMP_FOPENERR
+ || err == WARC_TMP_FWRITEERR)
break;
con->cmd &= ~ (DO_CWD | DO_LOGIN);
f = f->next;
if (start)
{
/* Just get everything. */
- ftp_retrieve_list (u, start, con);
+ res = ftp_retrieve_list (u, start, con);
}
else
{
if (opt.quota && total_downloaded_bytes > opt.quota)
return QUOTEXC;
else
- /* #### Should we return `res' here? */
- return RETROK;
+ return res;
}
/* The wrapper that calls an appropriate routine according to contents
of URL. Inherently, its capabilities are limited on what can be
encoded into a URL. */
uerr_t
-ftp_loop (struct url *u, char **local_file, int *dt, struct url *proxy,
+ftp_loop (struct url *u, char **local_file, int *dt, struct url *proxy,
bool recursive, bool glob)
{
ccon con; /* FTP connection */
char *filename = (opt.output_document
? xstrdup (opt.output_document)
: (con.target ? xstrdup (con.target)
- : url_file_name (u)));
+ : url_file_name (u, NULL)));
res = ftp_index (filename, u, f);
if (res == FTPOK && opt.verbose)
{
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