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-rw-r--r--source3/cgi.c631
1 files changed, 0 insertions, 631 deletions
diff --git a/source3/cgi.c b/source3/cgi.c
deleted file mode 100644
index 6468c92917..0000000000
--- a/source3/cgi.c
+++ /dev/null
@@ -1,631 +0,0 @@
-/*
- some simple CGI helper routines
- Copyright (C) Andrew Tridgell 1997-1998
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-
-#include "includes.h"
-#include "smb.h"
-
-#define MAX_VARIABLES 10000
-
-/* set the expiry on fixed pages */
-#define EXPIRY_TIME (60*60*24*7)
-
-#define CGI_LOGGING 0
-
-#ifdef DEBUG_COMMENTS
-extern void print_title(char *fmt, ...);
-#endif
-
-struct var {
- char *name;
- char *value;
-};
-
-static struct var variables[MAX_VARIABLES];
-static int num_variables;
-static int content_length;
-static int request_post;
-static int request_get;
-static char *query_string;
-static char *baseurl;
-
-static void unescape(char *buf)
-{
- char *p=buf;
-
- while ((p=strchr(p,'+')))
- *p = ' ';
-
- p = buf;
-
- while (p && *p && (p=strchr(p,'%'))) {
- int c1 = p[1];
- int c2 = p[2];
-
- if (c1 >= '0' && c1 <= '9')
- c1 = c1 - '0';
- else if (c1 >= 'A' && c1 <= 'F')
- c1 = 10 + c1 - 'A';
- else if (c1 >= 'a' && c1 <= 'f')
- c1 = 10 + c1 - 'a';
- else {p++; continue;}
-
- if (c2 >= '0' && c2 <= '9')
- c2 = c2 - '0';
- else if (c2 >= 'A' && c2 <= 'F')
- c2 = 10 + c2 - 'A';
- else if (c2 >= 'a' && c2 <= 'f')
- c2 = 10 + c2 - 'a';
- else {p++; continue;}
-
- *p = (c1<<4) | c2;
-
- memcpy(p+1, p+3, strlen(p+3)+1);
- p++;
- }
-}
-
-
-static char *grab_line(FILE *f, int *cl)
-{
- char *ret;
- int i = 0;
- int len = 1024;
-
- ret = (char *)malloc(len);
- if (!ret) return NULL;
-
-
- while ((*cl)) {
- int c = fgetc(f);
- (*cl)--;
-
- if (c == EOF) {
- (*cl) = 0;
- break;
- }
-
- if (c == '\r') continue;
-
- if (strchr("\n&", c)) break;
-
- ret[i++] = c;
-
- if (i == len-1) {
- char *ret2;
- ret2 = (char *)realloc(ret, len*2);
- if (!ret2) return ret;
- len *= 2;
- ret = ret2;
- }
- }
-
-
- ret[i] = 0;
- return ret;
-}
-
-/***************************************************************************
- load all the variables passed to the CGI program. May have multiple variables
- with the same name and the same or different values. Takes a file parameter
- for simulating CGI invocation eg loading saved preferences.
- ***************************************************************************/
-void cgi_load_variables(FILE *f1)
-{
- FILE *f = f1;
- static char *line;
- char *p, *s, *tok;
- int len;
-
-#ifdef DEBUG_COMMENTS
- char dummy[100]="";
- print_title(dummy);
- printf("<!== Start dump in cgi_load_variables() %s ==>\n",__FILE__);
-#endif
-
- if (!f1) {
- f = stdin;
- if (!content_length) {
- p = getenv("CONTENT_LENGTH");
- len = p?atoi(p):0;
- } else {
- len = content_length;
- }
- } else {
- fseek(f, 0, SEEK_END);
- len = ftell(f);
- fseek(f, 0, SEEK_SET);
- }
-
-
- if (len > 0 &&
- (f1 || request_post ||
- ((s=getenv("REQUEST_METHOD")) &&
- strcasecmp(s,"POST")==0))) {
- while (len && (line=grab_line(f, &len))) {
- p = strchr(line,'=');
- if (!p) continue;
-
- *p = 0;
-
- variables[num_variables].name = strdup(line);
- variables[num_variables].value = strdup(p+1);
-
- free(line);
-
- if (!variables[num_variables].name ||
- !variables[num_variables].value)
- continue;
-
- unescape(variables[num_variables].value);
- unescape(variables[num_variables].name);
-
-#ifdef DEBUG_COMMENTS
- printf("<!== POST var %s has value \"%s\" ==>\n",
- variables[num_variables].name,
- variables[num_variables].value);
-#endif
-
- num_variables++;
- if (num_variables == MAX_VARIABLES) break;
- }
- }
-
- if (f1) {
-#ifdef DEBUG_COMMENTS
- printf("<!== End dump in cgi_load_variables() ==>\n");
-#endif
- return;
- }
-
- fclose(stdin);
-
- if ((s=query_string) || (s=getenv("QUERY_STRING"))) {
- for (tok=strtok(s,"&;");tok;tok=strtok(NULL,"&;")) {
- p = strchr(tok,'=');
- if (!p) continue;
-
- *p = 0;
-
- variables[num_variables].name = strdup(tok);
- variables[num_variables].value = strdup(p+1);
-
- if (!variables[num_variables].name ||
- !variables[num_variables].value)
- continue;
-
- unescape(variables[num_variables].value);
- unescape(variables[num_variables].name);
-
-#ifdef DEBUG_COMMENTS
- printf("<!== Commandline var %s has value \"%s\" ==>\n",
- variables[num_variables].name,
- variables[num_variables].value);
-#endif
- num_variables++;
- if (num_variables == MAX_VARIABLES) break;
- }
-
- }
-#ifdef DEBUG_COMMENTS
- printf("<!== End dump in cgi_load_variables() ==>\n");
-#endif
-}
-
-
-/***************************************************************************
- find a variable passed via CGI
- Doesn't quite do what you think in the case of POST text variables, because
- if they exist they might have a value of "" or even " ", depending on the
- browser. Also doesn't allow for variables[] containing multiple variables
- with the same name and the same or different values.
- ***************************************************************************/
-char *cgi_variable(char *name)
-{
- int i;
-
- for (i=0;i<num_variables;i++)
- if (strcmp(variables[i].name, name) == 0)
- return variables[i].value;
- return NULL;
-}
-
-/***************************************************************************
-return a particular cgi variable
- ***************************************************************************/
-char *cgi_vnum(int i, char **name)
-{
- if (i < 0 || i >= num_variables) return NULL;
- *name = variables[i].name;
- return variables[i].value;
-}
-
-/***************************************************************************
- return the value of a CGI boolean variable.
- ***************************************************************************/
-int cgi_boolean(char *name, int def)
-{
- char *p = cgi_variable(name);
-
- if (!p) return def;
-
- return strcmp(p, "1") == 0;
-}
-
-/***************************************************************************
-like strdup() but quotes < > and &
- ***************************************************************************/
-char *quotedup(char *s)
-{
- int i, n=0;
- int len;
- char *ret;
- char *d;
-
- if (!s) return strdup("");
-
- len = strlen(s);
-
- for (i=0;i<len;i++)
- if (s[i] == '<' || s[i] == '>' || s[i] == '&')
- n++;
-
- ret = malloc(len + n*6 + 1);
-
- if (!ret) return NULL;
-
- d = ret;
-
- for (i=0;i<len;i++) {
- switch (s[i]) {
- case '<':
- strcpy(d, "&lt;");
- d += 4;
- break;
-
- case '>':
- strcpy(d, "&gt;");
- d += 4;
- break;
-
- case '&':
- strcpy(d, "&amp;");
- d += 5;
- break;
-
- default:
- *d++ = s[i];
- }
- }
-
- *d = 0;
-
- return ret;
-}
-
-
-/***************************************************************************
-like strdup() but quotes a wide range of characters
- ***************************************************************************/
-char *urlquote(char *s)
-{
- int i, n=0;
- int len;
- char *ret;
- char *d;
- char *qlist = "\"\n\r'&<> \t+;";
-
- if (!s) return strdup("");
-
- len = strlen(s);
-
- for (i=0;i<len;i++)
- if (strchr(qlist, s[i])) n++;
-
- ret = malloc(len + n*2 + 1);
-
- if (!ret) return NULL;
-
- d = ret;
-
- for (i=0;i<len;i++) {
- if (strchr(qlist,s[i])) {
- sprintf(d, "%%%02X", (int)s[i]);
- d += 3;
- } else {
- *d++ = s[i];
- }
- }
-
- *d = 0;
-
- return ret;
-}
-
-
-/***************************************************************************
-like strdup() but quotes " characters
- ***************************************************************************/
-char *quotequotes(char *s)
-{
- int i, n=0;
- int len;
- char *ret;
- char *d;
-
- if (!s) return strdup("");
-
- len = strlen(s);
-
- for (i=0;i<len;i++)
- if (s[i] == '"')
- n++;
-
- ret = malloc(len + n*6 + 1);
-
- if (!ret) return NULL;
-
- d = ret;
-
- for (i=0;i<len;i++) {
- switch (s[i]) {
- case '"':
- strcpy(d, "&quot;");
- d += 6;
- break;
-
- default:
- *d++ = s[i];
- }
- }
-
- *d = 0;
-
- return ret;
-}
-
-
-/***************************************************************************
-quote spaces in a buffer
- ***************************************************************************/
-void quote_spaces(char *buf)
-{
- while (*buf) {
- if (*buf == ' ') *buf = '+';
- buf++;
- }
-}
-
-
-
-/***************************************************************************
-tell a browser about a fatal error in the http processing
- ***************************************************************************/
-static void cgi_setup_error(char *err, char *header, char *info)
-{
- printf("HTTP/1.1 %s\r\n%sConnection: close\r\nContent-Type: text/html\r\n\r\n<HTML><HEAD><TITLE>%s</TITLE></HEAD><BODY><H1>%s</H1>%s<p></BODY></HTML>\r\n", err, header, err, err, info);
- exit(0);
-}
-
-
-/***************************************************************************
-decode a base64 string in-place - simple and slow algorithm
- ***************************************************************************/
-static void base64_decode(char *s)
-{
- char *b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
- int bit_offset, byte_offset, idx, i;
- unsigned char *d = (unsigned char *)s;
- char *p;
-
- i=0;
-
- while (*s && (p=strchr(b64,*s))) {
- idx = (int)(p - b64);
- byte_offset = (i*6)/8;
- bit_offset = (i*6)%8;
- d[byte_offset] &= ~((1<<(8-bit_offset))-1);
- if (bit_offset < 3) {
- d[byte_offset] |= (idx << (2-bit_offset));
- } else {
- d[byte_offset] |= (idx >> (bit_offset-2));
- d[byte_offset+1] = 0;
- d[byte_offset+1] |= (idx << (8-(bit_offset-2))) & 0xFF;
- }
- s++; i++;
- }
-}
-
-
-/***************************************************************************
-handle a http authentication line
- ***************************************************************************/
-static int cgi_handle_authorization(char *line)
-{
- char *p, *user, *pass;
-
- if (strncasecmp(line,"Basic ", 6)) {
- cgi_setup_error("401 Bad Authorization", "",
- "Only basic authorization is understood");
- }
- line += 6;
- while (line[0] == ' ') line++;
- base64_decode(line);
- if (!(p=strchr(line,':'))) {
- cgi_setup_error("401 Bad Authorization", "",
- "username/password must be supplied");
- }
- *p = 0;
- user = line;
- pass = p+1;
-
- /* currently only allow connections as root */
- if (strcmp(user,"root")) {
- cgi_setup_error("401 Bad Authorization", "",
- "incorrect username/password");
- }
-
-
- return password_ok(user, pass, strlen(pass), NULL);
-}
-
-
-/***************************************************************************
-handle a file download
- ***************************************************************************/
-static void cgi_download(char *file)
-{
- struct stat st;
- char buf[1024];
- int fd, l, i;
- char *p;
-
- /* sanitise the filename */
- for (i=0;file[i];i++) {
- if (!isalnum(file[i]) && !strchr("/.-_", file[i])) {
- cgi_setup_error("404 File Not Found","",
- "Illegal character in filename");
- }
- }
-
- if (!file_exist(file, &st)) {
- cgi_setup_error("404 File Not Found","",
- "The requested file was not found");
- }
- fd = open(file,O_RDONLY);
- if (fd == -1) {
- cgi_setup_error("404 File Not Found","",
- "The requested file was not found");
- }
- printf("HTTP/1.1 200 OK\r\n");
- if ((p=strrchr(file,'.'))) {
- if (strcmp(p,".gif")==0) {
- printf("Content-Type: image/gif\r\n");
- } else if (strcmp(p,".jpg")==0) {
- printf("Content-Type: image/jpeg\r\n");
- } else {
- printf("Content-Type: text/html\r\n");
- }
- }
- printf("Expires: %s\r\n", http_timestring(time(NULL)+EXPIRY_TIME));
-
- printf("Content-Length: %d\r\n\r\n", (int)st.st_size);
- while ((l=read(fd,buf,sizeof(buf)))>0) {
- fwrite(buf, 1, l, stdout);
- }
- close(fd);
- exit(0);
-}
-
-
-/***************************************************************************
-setup the cgi framework, handling the possability that this program is either
-run as a true cgi program by a web browser or is itself a mini web server
- ***************************************************************************/
-void cgi_setup(char *rootdir, int auth_required)
-{
- int authenticated = 0;
- char line[1024];
- char *url=NULL;
- char *p;
-#if CGI_LOGGING
- FILE *f = fopen("/tmp/cgi.log", "a");
-
- fprintf(f,"\n[Date: %s]\n", http_timestring(time(NULL)));
-#endif
-
- if (chdir(rootdir)) {
- cgi_setup_error("400 Server Error", "",
- "chdir failed - the server is not configured correctly");
- }
-
- if (getenv("CONTENT_LENGTH") || getenv("REQUEST_METHOD")) {
- /* assume we are running under a real web server */
- return;
- }
-
- /* we are a mini-web server. We need to read the request from stdin
- and handle authentication etc */
- while (fgets(line, sizeof(line)-1, stdin)) {
-#if CGI_LOGGING
- fputs(line, f);
-#endif
- if (line[0] == '\r' || line[0] == '\n') break;
- if (strncasecmp(line,"GET ", 4)==0) {
- request_get = 1;
- url = strdup(&line[4]);
- } else if (strncasecmp(line,"POST ", 5)==0) {
- request_post = 1;
- url = strdup(&line[5]);
- } else if (strncasecmp(line,"PUT ", 4)==0) {
- cgi_setup_error("400 Bad Request", "",
- "This server does not accept PUT requests");
- } else if (strncasecmp(line,"Authorization: ", 15)==0) {
- authenticated = cgi_handle_authorization(&line[15]);
- } else if (strncasecmp(line,"Content-Length: ", 16)==0) {
- content_length = atoi(&line[16]);
- }
- /* ignore all other requests! */
- }
-#if CGI_LOGGING
- fclose(f);
-#endif
-
- if (auth_required && !authenticated) {
- cgi_setup_error("401 Authorization Required",
- "WWW-Authenticate: Basic realm=\"root\"\r\n",
- "You must be authenticated to use this service");
- }
-
- if (!url) {
- cgi_setup_error("400 Bad Request", "",
- "You must specify a GET or POST request");
- }
-
- /* trim the URL */
- if ((p = strchr(url,' ')) || (p=strchr(url,'\t'))) {
- *p = 0;
- }
- while (*url && strchr("\r\n",url[strlen(url)-1])) {
- url[strlen(url)-1] = 0;
- }
-
- /* anything following a ? in the URL is part of the query string */
- if ((p=strchr(url,'?'))) {
- query_string = p+1;
- *p = 0;
- }
-
- if (strstr(url+1,"..")==0 && file_exist(url+1, NULL)) {
- cgi_download(url+1);
- }
-
- printf("HTTP/1.1 200 OK\r\nConnection: close\r\n");
- printf("Date: %s\r\n", http_timestring(time(NULL)));
- baseurl = url+1;
-}
-
-
-/***************************************************************************
-return the current pages URL
- ***************************************************************************/
-char *cgi_baseurl(void)
-{
- return baseurl;
-}
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