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Fix broken --header handling, see: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744725
From upstream: http://busybox.net/downloads/fixes-1.23.1/busybox-1.23.1-wget.patch
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
--- busybox-1.23.1/networking/wget.c
+++ busybox-1.23.1-wget/networking/wget.c
@@ -38,8 +38,14 @@
#if 0
# define log_io(...) bb_error_msg(__VA_ARGS__)
+# define SENDFMT(fp, fmt, ...) \
+ do { \
+ log_io("> " fmt, ##__VA_ARGS__); \
+ fprintf(fp, fmt, ##__VA_ARGS__); \
+ } while (0);
#else
# define log_io(...) ((void)0)
+# define SENDFMT(fp, fmt, ...) fprintf(fp, fmt, ##__VA_ARGS__)
#endif
@@ -55,6 +61,36 @@ static const char P_FTP[] = "ftp";
static const char P_HTTP[] = "http";
static const char P_HTTPS[] = "https";
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+/* User-specified headers prevent using our corresponding built-in headers. */
+enum {
+ HDR_HOST = (1<<0),
+ HDR_USER_AGENT = (1<<1),
+ HDR_RANGE = (1<<2),
+ HDR_AUTH = (1<<3) * ENABLE_FEATURE_WGET_AUTHENTICATION,
+ HDR_PROXY_AUTH = (1<<4) * ENABLE_FEATURE_WGET_AUTHENTICATION,
+};
+static const char wget_user_headers[] ALIGN1 =
+ "Host:\0"
+ "User-Agent:\0"
+ "Range:\0"
+# if ENABLE_FEATURE_WGET_AUTHENTICATION
+ "Authorization:\0"
+ "Proxy-Authorization:\0"
+# endif
+ ;
+# define USR_HEADER_HOST (G.user_headers & HDR_HOST)
+# define USR_HEADER_USER_AGENT (G.user_headers & HDR_USER_AGENT)
+# define USR_HEADER_RANGE (G.user_headers & HDR_RANGE)
+# define USR_HEADER_AUTH (G.user_headers & HDR_AUTH)
+# define USR_HEADER_PROXY_AUTH (G.user_headers & HDR_PROXY_AUTH)
+#else /* No long options, no user-headers :( */
+# define USR_HEADER_HOST 0
+# define USR_HEADER_USER_AGENT 0
+# define USR_HEADER_RANGE 0
+# define USR_HEADER_AUTH 0
+# define USR_HEADER_PROXY_AUTH 0
+#endif
/* Globals */
struct globals {
@@ -69,6 +105,7 @@ struct globals {
#if ENABLE_FEATURE_WGET_LONG_OPTIONS
char *post_data;
char *extra_headers;
+ unsigned char user_headers; /* Headers mentioned by the user */
#endif
char *fname_out; /* where to direct output (-O) */
const char *proxy_flag; /* Use proxies if env vars are set */
@@ -830,43 +867,46 @@ static void download_one_url(const char
#endif
/* Send HTTP request */
if (use_proxy) {
- fprintf(sfp, "GET %s://%s/%s HTTP/1.1\r\n",
+ SENDFMT(sfp, "GET %s://%s/%s HTTP/1.1\r\n",
target.protocol, target.host,
target.path);
} else {
- fprintf(sfp, "%s /%s HTTP/1.1\r\n",
+ SENDFMT(sfp, "%s /%s HTTP/1.1\r\n",
(option_mask32 & WGET_OPT_POST_DATA) ? "POST" : "GET",
target.path);
}
-
- fprintf(sfp, "Host: %s\r\nUser-Agent: %s\r\n",
- target.host, G.user_agent);
+ if (!USR_HEADER_HOST)
+ SENDFMT(sfp, "Host: %s\r\n", target.host);
+ if (!USR_HEADER_USER_AGENT)
+ SENDFMT(sfp, "User-Agent: %s\r\n", G.user_agent);
/* Ask server to close the connection as soon as we are done
* (IOW: we do not intend to send more requests)
*/
- fprintf(sfp, "Connection: close\r\n");
+ SENDFMT(sfp, "Connection: close\r\n");
#if ENABLE_FEATURE_WGET_AUTHENTICATION
- if (target.user) {
- fprintf(sfp, "Proxy-Authorization: Basic %s\r\n"+6,
+ if (target.user && !USR_HEADER_AUTH) {
+ SENDFMT(sfp, "Proxy-Authorization: Basic %s\r\n"+6,
base64enc(target.user));
}
- if (use_proxy && server.user) {
- fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
+ if (use_proxy && server.user && !USR_HEADER_PROXY_AUTH) {
+ SENDFMT(sfp, "Proxy-Authorization: Basic %s\r\n",
base64enc(server.user));
}
#endif
- if (G.beg_range != 0)
- fprintf(sfp, "Range: bytes=%"OFF_FMT"u-\r\n", G.beg_range);
+ if (G.beg_range != 0 && !USR_HEADER_RANGE)
+ SENDFMT(sfp, "Range: bytes=%"OFF_FMT"u-\r\n", G.beg_range);
#if ENABLE_FEATURE_WGET_LONG_OPTIONS
- if (G.extra_headers)
+ if (G.extra_headers) {
+ log_io(G.extra_headers);
fputs(G.extra_headers, sfp);
+ }
if (option_mask32 & WGET_OPT_POST_DATA) {
- fprintf(sfp,
+ SENDFMT(sfp,
"Content-Type: application/x-www-form-urlencoded\r\n"
"Content-Length: %u\r\n"
"\r\n"
@@ -876,7 +916,7 @@ static void download_one_url(const char
} else
#endif
{
- fprintf(sfp, "\r\n");
+ SENDFMT(sfp, "\r\n");
}
fflush(sfp);
@@ -1093,7 +1133,9 @@ int wget_main(int argc UNUSED_PARAM, cha
#if ENABLE_FEATURE_WGET_LONG_OPTIONS
applet_long_options = wget_longopts;
#endif
- opt_complementary = "-1" IF_FEATURE_WGET_TIMEOUT(":T+") IF_FEATURE_WGET_LONG_OPTIONS(":\xfe::");
+ opt_complementary = "-1"
+ IF_FEATURE_WGET_TIMEOUT(":T+")
+ IF_FEATURE_WGET_LONG_OPTIONS(":\xfe::");
getopt32(argv, "csqO:P:Y:U:T:" /*ignored:*/ "t:",
&G.fname_out, &G.dir_prefix,
&G.proxy_flag, &G.user_agent,
@@ -1106,16 +1148,32 @@ int wget_main(int argc UNUSED_PARAM, cha
#if ENABLE_FEATURE_WGET_LONG_OPTIONS
if (headers_llist) {
- int size = 1;
- char *cp;
+ int size = 0;
+ char *hdr;
llist_t *ll = headers_llist;
while (ll) {
size += strlen(ll->data) + 2;
ll = ll->link;
}
- G.extra_headers = cp = xmalloc(size);
+ G.extra_headers = hdr = xmalloc(size + 1);
while (headers_llist) {
- cp += sprintf(cp, "%s\r\n", (char*)llist_pop(&headers_llist));
+ int bit;
+ const char *words;
+
+ size = sprintf(hdr, "%s\r\n",
+ (char*)llist_pop(&headers_llist));
+ /* a bit like index_in_substrings but don't match full key */
+ bit = 1;
+ words = wget_user_headers;
+ while (*words) {
+ if (strstr(hdr, words) == hdr) {
+ G.user_headers |= bit;
+ break;
+ }
+ bit <<= 1;
+ words += strlen(words) + 1;
+ }
+ hdr += size;
}
}
#endif
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