mirror of
https://github.com/sheumann/hush.git
synced 2024-09-12 00:55:11 +00:00
A patch from Dmitry Zakharov <dmit@crp.bank.gov.ua> which adds
- support for ftp downloads - HTTP basic authentication support (as an optional feature) - handling of http redirections - protocol version changed to 1.0 (to stop servers from requesting chunked encoding) - bugfix: in the case when content-length not given, wget didn't download anything - when attempting to continue an aborted download but server doesn't support restarts, reopen output file in write mode - changed assumption that existing file should restart an aborted download. Now the user must explicitly specify this with -c
This commit is contained in:
parent
ea9065072c
commit
79757c9c37
3
Config.h
3
Config.h
@ -308,6 +308,9 @@
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// Enable a nifty progress meter in wget (adds just under 2k)
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#define BB_FEATURE_WGET_STATUSBAR
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//
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// Enable HTTP authentication in wget
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#define BB_FEATURE_WGET_AUTHENTICATION
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//
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// Clean up all memory before exiting -- usually not needed
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// as the OS can clean up... Don't enable this unless you
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// have a really good reason for cleaning things up manually.
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@ -1718,9 +1718,10 @@
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#define wget_trivial_usage \
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"[-c] [-O file] url"
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#define wget_full_usage \
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"wget retrieves files via HTTP\n\n" \
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"wget retrieves files via HTTP or FTP\n\n" \
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"Options:\n" \
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"\t-c\tcontinue retrieval of aborted transfers\n" \
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"\t-q\tquiet mode - do not print\n" \
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"\t-O\tsave to filename ('-' for stdout)"
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#define which_trivial_usage \
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3
debian/Config.h-deb
vendored
3
debian/Config.h-deb
vendored
@ -305,6 +305,9 @@
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// Enable a nifty progress meter in wget (adds just under 2k)
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#define BB_FEATURE_WGET_STATUSBAR
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//
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// Enable HTTP authentication in wget
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#define BB_FEATURE_WGET_AUTHENTICATION
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//
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// Clean up all memory before exiting -- usually not needed
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// as the OS can clean up... Don't enable this unless you
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// have a really good reason for cleaning things up manually.
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3
debian/Config.h-static
vendored
3
debian/Config.h-static
vendored
@ -305,6 +305,9 @@
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// Enable a nifty progress meter in wget (adds just under 2k)
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#define BB_FEATURE_WGET_STATUSBAR
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//
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// Enable HTTP authentication in wget
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#define BB_FEATURE_WGET_AUTHENTICATION
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//
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// Clean up all memory before exiting -- usually not needed
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// as the OS can clean up... Don't enable this unless you
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// have a really good reason for cleaning things up manually.
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3
debian/Config.h-udeb
vendored
3
debian/Config.h-udeb
vendored
@ -305,6 +305,9 @@
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// Enable a nifty progress meter in wget (adds just under 2k)
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#define BB_FEATURE_WGET_STATUSBAR
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//
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// Enable HTTP authentication in wget
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#define BB_FEATURE_WGET_AUTHENTICATION
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//
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// Clean up all memory before exiting -- usually not needed
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// as the OS can clean up... Don't enable this unless you
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// have a really good reason for cleaning things up manually.
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@ -2346,11 +2346,12 @@ Example:
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wget [B<-c>] [B<-O> file] url
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wget retrieves files via HTTP
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wget retrieves files via HTTP or FTP
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Options:
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-c continue retrieval of aborted transfers
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-q quiet mode - do not print
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-O save to filename ('-' for stdout)
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-------------------------------
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@ -2552,4 +2553,4 @@ Enrique Zanardi <ezanardi@ull.es>
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=cut
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# $Id: busybox.pod,v 1.95 2001/04/05 20:03:33 beppu Exp $
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# $Id: busybox.pod,v 1.96 2001/04/05 21:45:54 andersen Exp $
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@ -1718,9 +1718,10 @@
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#define wget_trivial_usage \
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"[-c] [-O file] url"
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#define wget_full_usage \
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"wget retrieves files via HTTP\n\n" \
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"wget retrieves files via HTTP or FTP\n\n" \
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"Options:\n" \
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"\t-c\tcontinue retrieval of aborted transfers\n" \
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"\t-q\tquiet mode - do not print\n" \
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"\t-O\tsave to filename ('-' for stdout)"
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#define which_trivial_usage \
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@ -1,6 +1,6 @@
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/* vi: set sw=4 ts=4: */
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/*
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* wget - retrieve a file using HTTP
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* wget - retrieve a file using HTTP or FTP
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*
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* Chip Rosenthal Covad Communications <chip@laserlink.net>
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*
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@ -47,9 +47,18 @@
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} while (0)
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#endif
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static void parse_url(char *url, char **uri_host, int *uri_port, char **uri_path);
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struct host_info {
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char *host;
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int port;
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char *path;
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int is_ftp;
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char *user;
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};
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static void parse_url(char *url, struct host_info *h);
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static FILE *open_socket(char *host, int port);
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static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
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static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
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static void progressmeter(int flag);
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/* Globals (can be accessed from signal handlers */
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@ -70,16 +79,52 @@ static void close_and_delete_outfile(FILE* output, char *fname_out, int do_conti
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}
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}
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#define close_delete_and_die(s...) { \
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close_and_delete_outfile(output, fname_out, do_continue); \
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error_msg_and_die(s); }
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#ifdef BB_FEATURE_WGET_AUTHENTICATION
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/*
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* Base64-encode character string
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* oops... isn't something similar in uuencode.c?
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* It would be better to use already existing code
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*/
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char *base64enc(char *p, char *buf, int len) {
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char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
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"0123456789+/";
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char *s = buf;
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while(*p) {
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if (s >= buf+len-4)
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error_msg_and_die("buffer overflow");
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*(s++) = al[(*p >> 2) & 0x3F];
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*(s++) = al[((*p << 4) & 0x30) | ((*(p+1) >> 4) & 0x0F)];
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*s = *(s+1) = '=';
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*(s+2) = 0;
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if (! *(++p)) break;
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*(s++) = al[((*p << 2) & 0x3C) | ((*(p+1) >> 6) & 0x03)];
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if (! *(++p)) break;
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*(s++) = al[*(p++) & 0x3F];
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}
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return buf;
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}
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#endif
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int wget_main(int argc, char **argv)
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{
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int n;
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char *proxy, *proxy_host;
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int uri_port, proxy_port;
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int n, try=5, status;
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int port;
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char *proxy;
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char *s, buf[512];
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struct stat sbuf;
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FILE *sfp; /* socket to web server */
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char *uri_host, *uri_path; /* parsed from command line url */
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struct host_info server, target;
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FILE *sfp = NULL; /* socket to web/ftp server */
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FILE *dfp = NULL; /* socket to ftp server (data) */
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char *fname_out = NULL; /* where to direct output (-O) */
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int do_continue = 0; /* continue a prev transfer (-c) */
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long beg_range = 0L; /* range at which continue begins */
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@ -113,21 +158,16 @@ int wget_main(int argc, char **argv)
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if (argc - optind != 1)
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show_usage();
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parse_url(argv[optind], &target);
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server.host = target.host;
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server.port = target.port;
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/*
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* Use the proxy if necessary.
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*/
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if ((proxy = getenv("http_proxy")) != NULL) {
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proxy = xstrdup(proxy);
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parse_url(proxy, &proxy_host, &proxy_port, &uri_path);
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parse_url(argv[optind], &uri_host, &uri_port, &uri_path);
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} else {
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/*
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* Parse url into components.
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*/
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parse_url(argv[optind], &uri_host, &uri_port, &uri_path);
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proxy_host=uri_host;
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proxy_port=uri_port;
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}
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proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
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if (proxy)
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parse_url(xstrdup(proxy), &server);
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/* Guess an output filename */
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if (!fname_out) {
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@ -135,7 +175,7 @@ int wget_main(int argc, char **argv)
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#ifdef BB_FEATURE_WGET_STATUSBAR
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curfile =
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#endif
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get_last_path_component(uri_path);
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get_last_path_component(target.path);
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if (fname_out==NULL || strlen(fname_out)<1) {
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fname_out =
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#ifdef BB_FEATURE_WGET_STATUSBAR
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@ -145,25 +185,13 @@ int wget_main(int argc, char **argv)
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}
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#ifdef BB_FEATURE_WGET_STATUSBAR
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} else {
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curfile=argv[optind];
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curfile = get_last_path_component(fname_out);
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#endif
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}
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if (do_continue && !fname_out)
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error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
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/*
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* Open socket to server.
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*/
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sfp = open_socket(proxy_host, proxy_port);
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/* Make the assumption that if the file already exists
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* on disk that the intention is to continue downloading
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* a previously aborted download -Erik */
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if (stat(fname_out, &sbuf) == 0) {
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++do_continue;
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}
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/*
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* Open the output file stream.
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*/
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@ -185,67 +213,185 @@ int wget_main(int argc, char **argv)
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do_continue = 0;
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}
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/*
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* Send HTTP request.
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*/
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fprintf(sfp, "GET http://%s:%d/%s HTTP/1.1\r\n",
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uri_host, uri_port, uri_path);
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fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", uri_host);
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if (proxy || !target.is_ftp) {
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/*
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* HTTP session
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*/
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do {
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if (! --try)
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close_delete_and_die("too many redirections");
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if (do_continue)
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fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
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fprintf(sfp,"Connection: close\r\n\r\n");
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/*
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* Open socket to http server
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*/
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if (sfp) fclose(sfp);
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sfp = open_socket(server.host, server.port);
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/*
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* Send HTTP request.
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*/
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if (proxy) {
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fprintf(sfp, "GET %stp://%s:%d/%s HTTP/1.0\r\n",
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target.is_ftp ? "f" : "ht", target.host,
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target.port, target.path);
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} else {
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fprintf(sfp, "GET /%s HTTP/1.0\r\n", target.path);
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}
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fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", target.host);
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#ifdef BB_FEATURE_WGET_AUTHENTICATION
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if (target.user) {
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fprintf(sfp, "Authorization: Basic %s\r\n",
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base64enc(target.user, buf, sizeof(buf)));
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}
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if (proxy && server.user) {
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fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
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base64enc(server.user, buf, sizeof(buf)));
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}
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#endif
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/*
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* Retrieve HTTP response line and check for "200" status code.
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*/
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if (fgets(buf, sizeof(buf), sfp) == NULL) {
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close_and_delete_outfile(output, fname_out, do_continue);
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error_msg_and_die("no response from server");
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}
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for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
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;
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for ( ; isspace(*s) ; ++s)
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;
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switch (atoi(s)) {
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case 0:
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case 200:
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break;
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case 206:
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if (do_continue)
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fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
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fprintf(sfp,"Connection: close\r\n\r\n");
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/*
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* Retrieve HTTP response line and check for "200" status code.
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*/
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if (fgets(buf, sizeof(buf), sfp) == NULL)
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close_delete_and_die("no response from server");
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for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
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;
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for ( ; isspace(*s) ; ++s)
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;
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switch (status = atoi(s)) {
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case 0:
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case 200:
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if (do_continue && output != stdout)
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output = freopen(fname_out, "w", output);
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do_continue = 0;
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break;
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case 300: /* redirection */
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case 301:
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case 302:
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case 303:
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break;
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case 206:
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if (do_continue)
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break;
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/*FALLTHRU*/
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default:
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chomp(buf);
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close_delete_and_die("server returned error %d: %s", atoi(s), buf);
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}
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/*
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* Retrieve HTTP headers.
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*/
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while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
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if (strcasecmp(buf, "content-length") == 0) {
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filesize = atol(s);
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got_clen = 1;
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continue;
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}
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if (strcasecmp(buf, "transfer-encoding") == 0)
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close_delete_and_die("server wants to do %s transfer encoding", s);
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if (strcasecmp(buf, "location") == 0) {
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if (s[0] == '/')
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target.path = xstrdup(s+1);
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else {
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parse_url(xstrdup(s), &target);
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if (!proxy) {
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server.host = target.host;
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server.port = target.port;
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}
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}
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}
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}
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} while(status >= 300);
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dfp = sfp;
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}
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else
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{
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/*
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* FTP session
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*/
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if (! target.user)
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target.user = xstrdup("anonymous:busybox@");
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sfp = open_socket(server.host, server.port);
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if (ftpcmd(NULL, NULL, sfp, buf) != 220)
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close_delete_and_die("%s", buf+4);
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/*
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* Splitting username:password pair,
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* trying to log in
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*/
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s = strchr(target.user, ':');
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if (s)
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*(s++) = '\0';
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switch(ftpcmd("USER ", target.user, sfp, buf)) {
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case 230:
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break;
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/*FALLTHRU*/
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default:
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close_and_delete_outfile(output, fname_out, do_continue);
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chomp(buf);
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error_msg_and_die("server returned error %d: %s", atoi(s), buf);
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}
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/*
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* Retrieve HTTP headers.
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*/
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while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
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if (strcasecmp(buf, "content-length") == 0) {
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filesize = atol(s);
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case 331:
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if (ftpcmd("PASS ", s, sfp, buf) == 230)
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break;
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/* FALLTHRU (failed login) */
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default:
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close_delete_and_die("ftp login: %s", buf+4);
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}
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ftpcmd("CDUP", NULL, sfp, buf);
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ftpcmd("TYPE I", NULL, sfp, buf);
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/*
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* Querying file size
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*/
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if (ftpcmd("SIZE /", target.path, sfp, buf) == 213) {
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filesize = atol(buf+4);
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got_clen = 1;
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continue;
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}
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if (strcasecmp(buf, "transfer-encoding") == 0) {
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close_and_delete_outfile(output, fname_out, do_continue);
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error_msg_and_die("server wants to do %s transfer encoding", s);
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continue;
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/*
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* Entering passive mode
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*/
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if (ftpcmd("PASV", NULL, sfp, buf) != 227)
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close_delete_and_die("PASV: %s", buf+4);
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s = strrchr(buf, ',');
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*s = 0;
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port = atoi(s+1);
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s = strrchr(buf, ',');
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port += atoi(s+1) * 256;
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dfp = open_socket(server.host, port);
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if (do_continue) {
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sprintf(buf, "REST %ld", beg_range);
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if (ftpcmd(buf, NULL, sfp, buf) != 350) {
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if (output != stdout)
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output = freopen(fname_out, "w", output);
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do_continue = 0;
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} else
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filesize -= beg_range;
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}
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if (ftpcmd("RETR /", target.path, sfp, buf) > 150)
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close_delete_and_die("RETR: %s", buf+4);
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}
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/*
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* Retrieve HTTP body.
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* Retrieve file
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*/
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#ifdef BB_FEATURE_WGET_STATUSBAR
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||||
statbytes=0;
|
||||
if (quiet_flag==FALSE)
|
||||
progressmeter(-1);
|
||||
#endif
|
||||
while (filesize > 0 && (n = fread(buf, 1, sizeof(buf), sfp)) > 0) {
|
||||
while ((filesize > 0 || !got_clen) && (n = fread(buf, 1, sizeof(buf), dfp)) > 0) {
|
||||
fwrite(buf, 1, n, output);
|
||||
#ifdef BB_FEATURE_WGET_STATUSBAR
|
||||
statbytes+=n;
|
||||
@ -255,37 +401,57 @@ int wget_main(int argc, char **argv)
|
||||
if (got_clen)
|
||||
filesize -= n;
|
||||
}
|
||||
if (n == 0 && ferror(sfp))
|
||||
|
||||
if (n == 0 && ferror(dfp))
|
||||
perror_msg_and_die("network read error");
|
||||
|
||||
exit(0);
|
||||
if (!proxy && target.is_ftp) {
|
||||
fclose(dfp);
|
||||
if (ftpcmd(NULL, NULL, sfp, buf) != 226)
|
||||
error_msg_and_die("ftp error: %s", buf+4);
|
||||
ftpcmd("QUIT", NULL, sfp, buf);
|
||||
}
|
||||
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
|
||||
void parse_url(char *url, char **uri_host, int *uri_port, char **uri_path)
|
||||
void parse_url(char *url, struct host_info *h)
|
||||
{
|
||||
char *cp, *sp;
|
||||
char *cp, *sp, *up;
|
||||
|
||||
*uri_port = 80;
|
||||
|
||||
if (strncmp(url, "http://", 7) != 0)
|
||||
error_msg_and_die("not an http url: %s", url);
|
||||
|
||||
*uri_host = url + 7;
|
||||
|
||||
cp = strchr(*uri_host, ':');
|
||||
sp = strchr(*uri_host, '/');
|
||||
|
||||
if (cp != NULL && (sp == NULL || cp < sp)) {
|
||||
*cp++ = '\0';
|
||||
*uri_port = atoi(cp);
|
||||
}
|
||||
if (strncmp(url, "http://", 7) == 0) {
|
||||
h->port = 80;
|
||||
h->host = url + 7;
|
||||
h->is_ftp = 0;
|
||||
} else if (strncmp(url, "ftp://", 6) == 0) {
|
||||
h->port = 21;
|
||||
h->host = url + 6;
|
||||
h->is_ftp = 1;
|
||||
} else
|
||||
error_msg_and_die("not an http or ftp url: %s", url);
|
||||
|
||||
sp = strchr(h->host, '/');
|
||||
if (sp != NULL) {
|
||||
*sp++ = '\0';
|
||||
*uri_path = sp;
|
||||
h->path = sp;
|
||||
} else
|
||||
*uri_path = "";
|
||||
h->path = "";
|
||||
|
||||
up = strrchr(h->host, '@');
|
||||
if (up != NULL) {
|
||||
h->user = h->host;
|
||||
*up++ = '\0';
|
||||
h->host = up;
|
||||
} else
|
||||
h->user = NULL;
|
||||
|
||||
cp = strchr(h->host, ':');
|
||||
if (cp != NULL) {
|
||||
*cp++ = '\0';
|
||||
h->port = atoi(cp);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
@ -364,6 +530,25 @@ char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
|
||||
return hdrval;
|
||||
}
|
||||
|
||||
static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
|
||||
{
|
||||
char *p;
|
||||
|
||||
if (s1) {
|
||||
if (!s2) s2="";
|
||||
fprintf(fp, "%s%s\n", s1, s2);
|
||||
fflush(fp);
|
||||
}
|
||||
|
||||
do {
|
||||
p = fgets(buf, 510, fp);
|
||||
if (!p)
|
||||
perror_msg_and_die("fgets()");
|
||||
} while (! isdigit(buf[0]) || buf[3] != ' ');
|
||||
|
||||
return atoi(buf);
|
||||
}
|
||||
|
||||
#ifdef BB_FEATURE_WGET_STATUSBAR
|
||||
/* Stuff below is from BSD rcp util.c, as added to openshh.
|
||||
* Original copyright notice is retained at the end of this file.
|
||||
@ -534,7 +719,7 @@ progressmeter(int flag)
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: wget.c,v 1.30 2001/03/21 07:34:26 andersen Exp $
|
||||
* $Id: wget.c,v 1.31 2001/04/05 21:45:53 andersen Exp $
|
||||
*/
|
||||
|
||||
|
||||
|
3
usage.h
3
usage.h
@ -1718,9 +1718,10 @@
|
||||
#define wget_trivial_usage \
|
||||
"[-c] [-O file] url"
|
||||
#define wget_full_usage \
|
||||
"wget retrieves files via HTTP\n\n" \
|
||||
"wget retrieves files via HTTP or FTP\n\n" \
|
||||
"Options:\n" \
|
||||
"\t-c\tcontinue retrieval of aborted transfers\n" \
|
||||
"\t-q\tquiet mode - do not print\n" \
|
||||
"\t-O\tsave to filename ('-' for stdout)"
|
||||
|
||||
#define which_trivial_usage \
|
||||
|
383
wget.c
383
wget.c
@ -1,6 +1,6 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* wget - retrieve a file using HTTP
|
||||
* wget - retrieve a file using HTTP or FTP
|
||||
*
|
||||
* Chip Rosenthal Covad Communications <chip@laserlink.net>
|
||||
*
|
||||
@ -47,9 +47,18 @@
|
||||
} while (0)
|
||||
#endif
|
||||
|
||||
static void parse_url(char *url, char **uri_host, int *uri_port, char **uri_path);
|
||||
struct host_info {
|
||||
char *host;
|
||||
int port;
|
||||
char *path;
|
||||
int is_ftp;
|
||||
char *user;
|
||||
};
|
||||
|
||||
static void parse_url(char *url, struct host_info *h);
|
||||
static FILE *open_socket(char *host, int port);
|
||||
static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
|
||||
static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
|
||||
static void progressmeter(int flag);
|
||||
|
||||
/* Globals (can be accessed from signal handlers */
|
||||
@ -70,16 +79,52 @@ static void close_and_delete_outfile(FILE* output, char *fname_out, int do_conti
|
||||
}
|
||||
}
|
||||
|
||||
#define close_delete_and_die(s...) { \
|
||||
close_and_delete_outfile(output, fname_out, do_continue); \
|
||||
error_msg_and_die(s); }
|
||||
|
||||
|
||||
#ifdef BB_FEATURE_WGET_AUTHENTICATION
|
||||
/*
|
||||
* Base64-encode character string
|
||||
* oops... isn't something similar in uuencode.c?
|
||||
* It would be better to use already existing code
|
||||
*/
|
||||
char *base64enc(char *p, char *buf, int len) {
|
||||
|
||||
char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
|
||||
"0123456789+/";
|
||||
char *s = buf;
|
||||
|
||||
while(*p) {
|
||||
if (s >= buf+len-4)
|
||||
error_msg_and_die("buffer overflow");
|
||||
*(s++) = al[(*p >> 2) & 0x3F];
|
||||
*(s++) = al[((*p << 4) & 0x30) | ((*(p+1) >> 4) & 0x0F)];
|
||||
*s = *(s+1) = '=';
|
||||
*(s+2) = 0;
|
||||
if (! *(++p)) break;
|
||||
*(s++) = al[((*p << 2) & 0x3C) | ((*(p+1) >> 6) & 0x03)];
|
||||
if (! *(++p)) break;
|
||||
*(s++) = al[*(p++) & 0x3F];
|
||||
}
|
||||
|
||||
return buf;
|
||||
}
|
||||
#endif
|
||||
|
||||
int wget_main(int argc, char **argv)
|
||||
{
|
||||
int n;
|
||||
char *proxy, *proxy_host;
|
||||
int uri_port, proxy_port;
|
||||
int n, try=5, status;
|
||||
int port;
|
||||
char *proxy;
|
||||
char *s, buf[512];
|
||||
struct stat sbuf;
|
||||
|
||||
FILE *sfp; /* socket to web server */
|
||||
char *uri_host, *uri_path; /* parsed from command line url */
|
||||
struct host_info server, target;
|
||||
|
||||
FILE *sfp = NULL; /* socket to web/ftp server */
|
||||
FILE *dfp = NULL; /* socket to ftp server (data) */
|
||||
char *fname_out = NULL; /* where to direct output (-O) */
|
||||
int do_continue = 0; /* continue a prev transfer (-c) */
|
||||
long beg_range = 0L; /* range at which continue begins */
|
||||
@ -113,21 +158,16 @@ int wget_main(int argc, char **argv)
|
||||
if (argc - optind != 1)
|
||||
show_usage();
|
||||
|
||||
parse_url(argv[optind], &target);
|
||||
server.host = target.host;
|
||||
server.port = target.port;
|
||||
|
||||
/*
|
||||
* Use the proxy if necessary.
|
||||
*/
|
||||
if ((proxy = getenv("http_proxy")) != NULL) {
|
||||
proxy = xstrdup(proxy);
|
||||
parse_url(proxy, &proxy_host, &proxy_port, &uri_path);
|
||||
parse_url(argv[optind], &uri_host, &uri_port, &uri_path);
|
||||
} else {
|
||||
/*
|
||||
* Parse url into components.
|
||||
*/
|
||||
parse_url(argv[optind], &uri_host, &uri_port, &uri_path);
|
||||
proxy_host=uri_host;
|
||||
proxy_port=uri_port;
|
||||
}
|
||||
proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
|
||||
if (proxy)
|
||||
parse_url(xstrdup(proxy), &server);
|
||||
|
||||
/* Guess an output filename */
|
||||
if (!fname_out) {
|
||||
@ -135,7 +175,7 @@ int wget_main(int argc, char **argv)
|
||||
#ifdef BB_FEATURE_WGET_STATUSBAR
|
||||
curfile =
|
||||
#endif
|
||||
get_last_path_component(uri_path);
|
||||
get_last_path_component(target.path);
|
||||
if (fname_out==NULL || strlen(fname_out)<1) {
|
||||
fname_out =
|
||||
#ifdef BB_FEATURE_WGET_STATUSBAR
|
||||
@ -145,25 +185,13 @@ int wget_main(int argc, char **argv)
|
||||
}
|
||||
#ifdef BB_FEATURE_WGET_STATUSBAR
|
||||
} else {
|
||||
curfile=argv[optind];
|
||||
curfile = get_last_path_component(fname_out);
|
||||
#endif
|
||||
}
|
||||
if (do_continue && !fname_out)
|
||||
error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
|
||||
|
||||
|
||||
/*
|
||||
* Open socket to server.
|
||||
*/
|
||||
sfp = open_socket(proxy_host, proxy_port);
|
||||
|
||||
/* Make the assumption that if the file already exists
|
||||
* on disk that the intention is to continue downloading
|
||||
* a previously aborted download -Erik */
|
||||
if (stat(fname_out, &sbuf) == 0) {
|
||||
++do_continue;
|
||||
}
|
||||
|
||||
/*
|
||||
* Open the output file stream.
|
||||
*/
|
||||
@ -185,67 +213,185 @@ int wget_main(int argc, char **argv)
|
||||
do_continue = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Send HTTP request.
|
||||
*/
|
||||
fprintf(sfp, "GET http://%s:%d/%s HTTP/1.1\r\n",
|
||||
uri_host, uri_port, uri_path);
|
||||
fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", uri_host);
|
||||
if (proxy || !target.is_ftp) {
|
||||
/*
|
||||
* HTTP session
|
||||
*/
|
||||
do {
|
||||
if (! --try)
|
||||
close_delete_and_die("too many redirections");
|
||||
|
||||
if (do_continue)
|
||||
fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
|
||||
fprintf(sfp,"Connection: close\r\n\r\n");
|
||||
/*
|
||||
* Open socket to http server
|
||||
*/
|
||||
if (sfp) fclose(sfp);
|
||||
sfp = open_socket(server.host, server.port);
|
||||
|
||||
/*
|
||||
* Send HTTP request.
|
||||
*/
|
||||
if (proxy) {
|
||||
fprintf(sfp, "GET %stp://%s:%d/%s HTTP/1.0\r\n",
|
||||
target.is_ftp ? "f" : "ht", target.host,
|
||||
target.port, target.path);
|
||||
} else {
|
||||
fprintf(sfp, "GET /%s HTTP/1.0\r\n", target.path);
|
||||
}
|
||||
|
||||
fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", target.host);
|
||||
|
||||
#ifdef BB_FEATURE_WGET_AUTHENTICATION
|
||||
if (target.user) {
|
||||
fprintf(sfp, "Authorization: Basic %s\r\n",
|
||||
base64enc(target.user, buf, sizeof(buf)));
|
||||
}
|
||||
if (proxy && server.user) {
|
||||
fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
|
||||
base64enc(server.user, buf, sizeof(buf)));
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Retrieve HTTP response line and check for "200" status code.
|
||||
*/
|
||||
if (fgets(buf, sizeof(buf), sfp) == NULL) {
|
||||
close_and_delete_outfile(output, fname_out, do_continue);
|
||||
error_msg_and_die("no response from server");
|
||||
}
|
||||
for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
|
||||
;
|
||||
for ( ; isspace(*s) ; ++s)
|
||||
;
|
||||
switch (atoi(s)) {
|
||||
case 0:
|
||||
case 200:
|
||||
break;
|
||||
case 206:
|
||||
if (do_continue)
|
||||
fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
|
||||
fprintf(sfp,"Connection: close\r\n\r\n");
|
||||
|
||||
/*
|
||||
* Retrieve HTTP response line and check for "200" status code.
|
||||
*/
|
||||
if (fgets(buf, sizeof(buf), sfp) == NULL)
|
||||
close_delete_and_die("no response from server");
|
||||
|
||||
for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
|
||||
;
|
||||
for ( ; isspace(*s) ; ++s)
|
||||
;
|
||||
switch (status = atoi(s)) {
|
||||
case 0:
|
||||
case 200:
|
||||
if (do_continue && output != stdout)
|
||||
output = freopen(fname_out, "w", output);
|
||||
do_continue = 0;
|
||||
break;
|
||||
case 300: /* redirection */
|
||||
case 301:
|
||||
case 302:
|
||||
case 303:
|
||||
break;
|
||||
case 206:
|
||||
if (do_continue)
|
||||
break;
|
||||
/*FALLTHRU*/
|
||||
default:
|
||||
chomp(buf);
|
||||
close_delete_and_die("server returned error %d: %s", atoi(s), buf);
|
||||
}
|
||||
|
||||
/*
|
||||
* Retrieve HTTP headers.
|
||||
*/
|
||||
while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
|
||||
if (strcasecmp(buf, "content-length") == 0) {
|
||||
filesize = atol(s);
|
||||
got_clen = 1;
|
||||
continue;
|
||||
}
|
||||
if (strcasecmp(buf, "transfer-encoding") == 0)
|
||||
close_delete_and_die("server wants to do %s transfer encoding", s);
|
||||
|
||||
if (strcasecmp(buf, "location") == 0) {
|
||||
if (s[0] == '/')
|
||||
target.path = xstrdup(s+1);
|
||||
else {
|
||||
parse_url(xstrdup(s), &target);
|
||||
if (!proxy) {
|
||||
server.host = target.host;
|
||||
server.port = target.port;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
} while(status >= 300);
|
||||
|
||||
dfp = sfp;
|
||||
}
|
||||
else
|
||||
{
|
||||
/*
|
||||
* FTP session
|
||||
*/
|
||||
if (! target.user)
|
||||
target.user = xstrdup("anonymous:busybox@");
|
||||
|
||||
sfp = open_socket(server.host, server.port);
|
||||
if (ftpcmd(NULL, NULL, sfp, buf) != 220)
|
||||
close_delete_and_die("%s", buf+4);
|
||||
|
||||
/*
|
||||
* Splitting username:password pair,
|
||||
* trying to log in
|
||||
*/
|
||||
s = strchr(target.user, ':');
|
||||
if (s)
|
||||
*(s++) = '\0';
|
||||
switch(ftpcmd("USER ", target.user, sfp, buf)) {
|
||||
case 230:
|
||||
break;
|
||||
/*FALLTHRU*/
|
||||
default:
|
||||
close_and_delete_outfile(output, fname_out, do_continue);
|
||||
chomp(buf);
|
||||
error_msg_and_die("server returned error %d: %s", atoi(s), buf);
|
||||
}
|
||||
|
||||
/*
|
||||
* Retrieve HTTP headers.
|
||||
*/
|
||||
while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
|
||||
if (strcasecmp(buf, "content-length") == 0) {
|
||||
filesize = atol(s);
|
||||
case 331:
|
||||
if (ftpcmd("PASS ", s, sfp, buf) == 230)
|
||||
break;
|
||||
/* FALLTHRU (failed login) */
|
||||
default:
|
||||
close_delete_and_die("ftp login: %s", buf+4);
|
||||
}
|
||||
|
||||
ftpcmd("CDUP", NULL, sfp, buf);
|
||||
ftpcmd("TYPE I", NULL, sfp, buf);
|
||||
|
||||
/*
|
||||
* Querying file size
|
||||
*/
|
||||
if (ftpcmd("SIZE /", target.path, sfp, buf) == 213) {
|
||||
filesize = atol(buf+4);
|
||||
got_clen = 1;
|
||||
continue;
|
||||
}
|
||||
if (strcasecmp(buf, "transfer-encoding") == 0) {
|
||||
close_and_delete_outfile(output, fname_out, do_continue);
|
||||
error_msg_and_die("server wants to do %s transfer encoding", s);
|
||||
continue;
|
||||
|
||||
/*
|
||||
* Entering passive mode
|
||||
*/
|
||||
if (ftpcmd("PASV", NULL, sfp, buf) != 227)
|
||||
close_delete_and_die("PASV: %s", buf+4);
|
||||
s = strrchr(buf, ',');
|
||||
*s = 0;
|
||||
port = atoi(s+1);
|
||||
s = strrchr(buf, ',');
|
||||
port += atoi(s+1) * 256;
|
||||
dfp = open_socket(server.host, port);
|
||||
|
||||
if (do_continue) {
|
||||
sprintf(buf, "REST %ld", beg_range);
|
||||
if (ftpcmd(buf, NULL, sfp, buf) != 350) {
|
||||
if (output != stdout)
|
||||
output = freopen(fname_out, "w", output);
|
||||
do_continue = 0;
|
||||
} else
|
||||
filesize -= beg_range;
|
||||
}
|
||||
|
||||
if (ftpcmd("RETR /", target.path, sfp, buf) > 150)
|
||||
close_delete_and_die("RETR: %s", buf+4);
|
||||
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Retrieve HTTP body.
|
||||
* Retrieve file
|
||||
*/
|
||||
#ifdef BB_FEATURE_WGET_STATUSBAR
|
||||
statbytes=0;
|
||||
if (quiet_flag==FALSE)
|
||||
progressmeter(-1);
|
||||
#endif
|
||||
while (filesize > 0 && (n = fread(buf, 1, sizeof(buf), sfp)) > 0) {
|
||||
while ((filesize > 0 || !got_clen) && (n = fread(buf, 1, sizeof(buf), dfp)) > 0) {
|
||||
fwrite(buf, 1, n, output);
|
||||
#ifdef BB_FEATURE_WGET_STATUSBAR
|
||||
statbytes+=n;
|
||||
@ -255,37 +401,57 @@ int wget_main(int argc, char **argv)
|
||||
if (got_clen)
|
||||
filesize -= n;
|
||||
}
|
||||
if (n == 0 && ferror(sfp))
|
||||
|
||||
if (n == 0 && ferror(dfp))
|
||||
perror_msg_and_die("network read error");
|
||||
|
||||
exit(0);
|
||||
if (!proxy && target.is_ftp) {
|
||||
fclose(dfp);
|
||||
if (ftpcmd(NULL, NULL, sfp, buf) != 226)
|
||||
error_msg_and_die("ftp error: %s", buf+4);
|
||||
ftpcmd("QUIT", NULL, sfp, buf);
|
||||
}
|
||||
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
|
||||
void parse_url(char *url, char **uri_host, int *uri_port, char **uri_path)
|
||||
void parse_url(char *url, struct host_info *h)
|
||||
{
|
||||
char *cp, *sp;
|
||||
char *cp, *sp, *up;
|
||||
|
||||
*uri_port = 80;
|
||||
|
||||
if (strncmp(url, "http://", 7) != 0)
|
||||
error_msg_and_die("not an http url: %s", url);
|
||||
|
||||
*uri_host = url + 7;
|
||||
|
||||
cp = strchr(*uri_host, ':');
|
||||
sp = strchr(*uri_host, '/');
|
||||
|
||||
if (cp != NULL && (sp == NULL || cp < sp)) {
|
||||
*cp++ = '\0';
|
||||
*uri_port = atoi(cp);
|
||||
}
|
||||
if (strncmp(url, "http://", 7) == 0) {
|
||||
h->port = 80;
|
||||
h->host = url + 7;
|
||||
h->is_ftp = 0;
|
||||
} else if (strncmp(url, "ftp://", 6) == 0) {
|
||||
h->port = 21;
|
||||
h->host = url + 6;
|
||||
h->is_ftp = 1;
|
||||
} else
|
||||
error_msg_and_die("not an http or ftp url: %s", url);
|
||||
|
||||
sp = strchr(h->host, '/');
|
||||
if (sp != NULL) {
|
||||
*sp++ = '\0';
|
||||
*uri_path = sp;
|
||||
h->path = sp;
|
||||
} else
|
||||
*uri_path = "";
|
||||
h->path = "";
|
||||
|
||||
up = strrchr(h->host, '@');
|
||||
if (up != NULL) {
|
||||
h->user = h->host;
|
||||
*up++ = '\0';
|
||||
h->host = up;
|
||||
} else
|
||||
h->user = NULL;
|
||||
|
||||
cp = strchr(h->host, ':');
|
||||
if (cp != NULL) {
|
||||
*cp++ = '\0';
|
||||
h->port = atoi(cp);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
@ -364,6 +530,25 @@ char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
|
||||
return hdrval;
|
||||
}
|
||||
|
||||
static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
|
||||
{
|
||||
char *p;
|
||||
|
||||
if (s1) {
|
||||
if (!s2) s2="";
|
||||
fprintf(fp, "%s%s\n", s1, s2);
|
||||
fflush(fp);
|
||||
}
|
||||
|
||||
do {
|
||||
p = fgets(buf, 510, fp);
|
||||
if (!p)
|
||||
perror_msg_and_die("fgets()");
|
||||
} while (! isdigit(buf[0]) || buf[3] != ' ');
|
||||
|
||||
return atoi(buf);
|
||||
}
|
||||
|
||||
#ifdef BB_FEATURE_WGET_STATUSBAR
|
||||
/* Stuff below is from BSD rcp util.c, as added to openshh.
|
||||
* Original copyright notice is retained at the end of this file.
|
||||
@ -534,7 +719,7 @@ progressmeter(int flag)
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: wget.c,v 1.30 2001/03/21 07:34:26 andersen Exp $
|
||||
* $Id: wget.c,v 1.31 2001/04/05 21:45:53 andersen Exp $
|
||||
*/
|
||||
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user