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Implement the 'wget' command to download files from http:// ##shell

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This commit is contained in:
pancake 2023-02-15 19:42:26 +01:00
parent ae3cb4d66f
commit 726a39a3ee
2 changed files with 39 additions and 4 deletions
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37
libr/core/cmd_write.c
View File

@ -20,6 +20,7 @@ static const char *help_msg_w[] = {
"wd"," [off] [n]","copy N bytes from OFF to $$ (memcpy) (see y?)",
"we","[?] [nNsxX] [arg]","extend write operations (insert instead of replace)",
"wf","[fs] -|file","write contents of file at current offset",
"wg","[et] [http://host/file]", "download file from http server and save it to disk (wget)",
"wh"," r2","whereis/which shell command",
"wm"," f0ff","set binary mask hexpair to be used as cyclic write mask",
"wo","[?] hex","write in block with operation. 'wo?' fmi",
@ -1462,6 +1463,39 @@ static int cmd_w(RCore *core, const char *input) {
return 0;
}
static int cmd_wget(RCore *core, const char *input) {
while (*input && *input != ' ') {
input++;
}
input = r_str_trim_head_ro (input);
if (!r_str_startswith (input, "http://")) {
R_LOG_ERROR ("wget/wg command only accepts http:// urls");
return 0;
}
const char *fname = r_str_lchr (input, '/');
if (!fname || !*fname) {
fname = "index.html";
} else {
fname ++;
}
int len = 0;
char *data = r_socket_http_get (input, NULL, &len);
if (data) {
if (!r_file_dump (fname, (const ut8*)data, len, 0)) {
R_LOG_ERROR ("Cannot save file to disk");
r_core_return_value (core, 1);
} else {
r_core_return_value (core, 0);
R_LOG_INFO ("Saved %d bytes in %s", len, fname);
}
free (data);
} else {
R_LOG_ERROR ("Cannot retrieve file");
r_core_return_value (core, 1);
}
return 0;
}
static int cmd_wz(RCore *core, const char *input) {
char *str = strdup (input + 1);
int len = r_str_unescape (str) + 1;
@ -2281,6 +2315,9 @@ static int cmd_write(void *data, const char *input) {
}
break;
}
case 'g': // "wg"
cmd_wget (core, input + 1);
break;
case 'z': // "wz"
cmd_wz (core, input + 1);
break;

6
libr/core/patch.c
View File

@ -8,9 +8,7 @@ R_API bool r_core_patch_line(RCore *core, char *str) {
return false;
}
*p = 0;
for (p++; *p == ' '; p++) {
; // XXX: skipsspaces here
}
p = (char *)r_str_trim_head_ro (p + 1);
switch (*p) {
case '"':
@ -29,7 +27,7 @@ R_API bool r_core_patch_line(RCore *core, char *str) {
q = strchr (p + 1, ' ');
if (q) {
*q = 0;
q = r_str_trim_head_ro (q + 1);
q = (char *)r_str_trim_head_ro (q + 1);
} else {
return 0;
}