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/* |
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* Copyright (C) 1997-2002 Jon Nelson <jnelson@boa.org> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 1, or (at your option) |
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* any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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*/ |
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|
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/* $Id: index_dir.c,v 1.6 2002/10/26 20:58:48 nmav Exp $*/ |
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|
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#include <stdio.h> |
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#include <sys/stat.h> |
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#include <limits.h> /* for PATH_MAX */ |
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#include <time.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include "compat.h" |
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|
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#define MAX_FILE_LENGTH MAXNAMLEN |
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#define MAX_PATH_LENGTH PATH_MAX |
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|
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#define INT_TO_HEX(x) \ |
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((((x)-10)>=0)?('A'+((x)-10)):('0'+(x))) |
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|
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#include "escape.h" |
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|
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char *html_escape_string(char *inp, char *buf, const int len); |
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char *http_escape_string(char *inp, char *buf, const int len); |
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|
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#if defined __GNUC__ && \ |
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(__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 0)) |
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#define CONST const |
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#else |
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#define CONST |
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#endif |
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|
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int select_files(CONST struct dirent *d); |
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int index_directory(char *dir, char *title); |
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|
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/* |
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* Name: html_escape_string |
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*/ |
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char *html_escape_string(char *inp, char *dest, const int len) |
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{ |
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int max; |
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char *buf; |
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unsigned char c; |
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|
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max = len * 5; |
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|
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if (dest == NULL && max) |
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dest = malloc(sizeof (unsigned char) * (max + 1)); |
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|
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if (dest == NULL) |
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return NULL; |
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|
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buf = dest; |
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while ((c = *inp++)) { |
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switch (c) { |
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case '>': |
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*dest++ = '&'; |
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*dest++ = 'g'; |
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*dest++ = 't'; |
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*dest++ = ';'; |
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break; |
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case '<': |
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*dest++ = '&'; |
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*dest++ = 'l'; |
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*dest++ = 't'; |
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*dest++ = ';'; |
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break; |
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case '&': |
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*dest++ = '&'; |
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*dest++ = 'a'; |
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*dest++ = 'm'; |
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*dest++ = 'p'; |
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*dest++ = ';'; |
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break; |
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default: |
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*dest++ = c; |
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} |
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} |
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*dest = '\0'; |
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return buf; |
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} |
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|
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|
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/* |
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* Name: escape_string |
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* |
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* Description: escapes the string inp. Uses variable buf. If buf is |
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* NULL when the program starts, it will attempt to dynamically allocate |
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* the space that it needs, otherwise it will assume that the user |
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* has already allocated enough space for the variable buf, which |
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* could be up to 3 times the size of inp. If the routine dynamically |
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* allocates the space, the user is responsible for freeing it afterwords |
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* Returns: NULL on error, pointer to string otherwise. |
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*/ |
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|
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char *http_escape_string(char *inp, char *buf, const int len) |
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{ |
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int max; |
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char *index; |
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unsigned char c; |
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|
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max = len * 3; |
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|
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if (buf == NULL && max) |
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buf = malloc(sizeof (unsigned char) * (max + 1)); |
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|
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if (buf == NULL) |
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return NULL; |
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|
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index = buf; |
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while ((c = *inp++)) { |
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if (needs_escape((unsigned int) c)) { |
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*index++ = '%'; |
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*index++ = INT_TO_HEX(c >> 4); |
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*index++ = INT_TO_HEX(c & 15); |
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} else |
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*index++ = c; |
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} |
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*index = '\0'; |
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|
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return buf; |
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} |
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|
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void send_error(int error) |
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{ |
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char *the_error; |
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|
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switch (error) { |
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|
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case 1: |
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the_error = "Not enough arguments were passed to the indexer."; |
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break; |
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case 2: |
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the_error = "The Directory Sorter ran out of Memory"; |
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break; |
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case 3: |
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the_error = |
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"The was a problem changing to the appropriate directory."; |
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break; |
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case 4: |
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the_error = "There was an error escaping a string."; |
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case 5: |
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the_error = "Too many arguments were passed to the indexer."; |
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break; |
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case 6: |
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the_error = "No files in this directory."; |
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break; |
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default: |
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the_error = "An unknown error occurred producing the directory."; |
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break; |
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} |
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printf("<html>\n<head>\n<title>\n%s\n</title>\n" |
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"<body>\n%s\n</body>\n</html>\n", the_error, the_error); |
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} |
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|
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int select_files(CONST struct dirent *dirbuf) |
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{ |
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if (dirbuf->d_name[0] == '.') |
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return 0; |
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else |
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return 1; |
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} |
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|
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/* |
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* Name: index_directory |
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* Description: Called from get_dir_mapping if a directory html |
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* has to be generated on the fly |
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* If no_slash is true, prepend slashes to hrefs |
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* returns -1 for problem, else 0 |
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*/ |
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|
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int index_directory(char *dir, char *title) |
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{ |
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struct dirent *dirbuf; |
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int numdir; |
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struct dirent **array; |
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struct stat statbuf; |
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char http_filename[MAX_FILE_LENGTH * 3]; |
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char html_filename[MAX_FILE_LENGTH * 5]; |
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int i; |
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|
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if (chdir(dir) == -1) { |
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send_error(3); |
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return -1; |
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} |
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|
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numdir = scandir(".", &array, select_files, alphasort); |
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if (numdir == -1) { |
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send_error(2); |
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return -1; |
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} else if (numdir == -2) { |
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send_error(6); |
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return -1; |
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} |
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|
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if (html_escape_string(title, html_filename, strlen(title)) == NULL) { |
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send_error(4); |
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return -1; |
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} |
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|
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printf("<html>\n" |
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"<head>\n<title>Index of %s</title>\n</head>\n\n" |
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"<body bgcolor=\"#ffffff\">\n" |
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"<H2>Index of %s</H2>\n" |
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"<table>\n%s", |
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html_filename, html_filename, |
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(strcmp(title, "/") == 0 ? "" : |
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"<tr><td colspan=3><h3>Directories</h3></td></tr>" |
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"<tr><td colspan=3><a href=\"../\">Parent Directory</a></td></tr>\n")); |
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|
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for (i = 0; i < numdir; ++i) { |
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dirbuf = array[i]; |
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|
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if (stat(dirbuf->d_name, &statbuf) == -1) |
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continue; |
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|
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if (!S_ISDIR(statbuf.st_mode)) |
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continue; |
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|
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if (html_escape_string(dirbuf->d_name, html_filename, |
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NAMLEN(dirbuf)) == NULL) { |
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send_error(4); |
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return -1; |
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} |
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if (http_escape_string(dirbuf->d_name, http_filename, |
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NAMLEN(dirbuf)) == NULL) { |
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send_error(4); |
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return -1; |
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} |
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#ifndef USE_LONG_OFFSETS |
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printf("<tr>" |
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"<td width=\"40%%\"><a href=\"%s/\">%s/</a></td>" |
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"<td align=right>%s</td>" |
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"<td align=right>%ld bytes</td>" |
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"</tr>\n", |
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http_filename, html_filename, |
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ctime(&statbuf.st_mtime), (long) statbuf.st_size); |
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#else |
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printf("<tr>" |
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"<td width=\"40%%\"><a href=\"%s/\">%s/</a></td>" |
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"<td align=right>%s</td>" |
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"<td align=right>%lld bytes</td>" |
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"</tr>\n", |
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http_filename, html_filename, |
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ctime(&statbuf.st_mtime), statbuf.st_size); |
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#endif |
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} |
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|
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printf |
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("<tr><td colspan=3> </td></tr>\n<tr><td colspan=3><h3>Files</h3></td></tr>\n"); |
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|
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for (i = 0; i < numdir; ++i) { |
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int len; |
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dirbuf = array[i]; |
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|
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if (stat(dirbuf->d_name, &statbuf) == -1) |
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continue; |
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|
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|
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if (S_ISDIR(statbuf.st_mode)) |
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continue; |
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|
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if (html_escape_string(dirbuf->d_name, html_filename, |
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NAMLEN(dirbuf)) == NULL) { |
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send_error(4); |
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return -1; |
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} |
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if (http_escape_string(dirbuf->d_name, http_filename, |
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NAMLEN(dirbuf)) == NULL) { |
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send_error(4); |
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return -1; |
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} |
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|
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len = strlen(http_filename); |
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#ifndef HAVE_STAT64 |
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printf("<tr>" |
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"<td width=\"40%%\"><a href=\"%s\">%s</a></td>" |
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"<td align=right>%s</td>" |
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"<td align=right>%ld bytes</td>" |
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"</tr>\n", |
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http_filename, html_filename, |
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ctime(&statbuf.st_mtime), (long) statbuf.st_size); |
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#else |
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printf("<tr>" |
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"<td width=\"40%%\"><a href=\"%s\">%s</a></td>" |
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"<td align=right>%s</td>" |
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"<td align=right>%lld bytes</td>" |
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"</tr>\n", |
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http_filename, html_filename, |
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ctime(&statbuf.st_mtime), statbuf.st_size); |
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#endif |
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} |
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/* hey -- even though this is a one-shot deal, we should |
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* still free memory we ought to free |
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* You never know -- this code might get used elsewhere! |
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*/ |
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for (i = 0; i < numdir; ++i) { |
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free(array[i]); |
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array[i] = NULL; |
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} |
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free(array); |
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array = NULL; |
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|
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return 0; /* success */ |
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} |
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|
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int main(int argc, char *argv[]) |
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{ |
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time_t timep; |
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struct tm *timeptr; |
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char *now; |
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|
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if (argc < 3) { |
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send_error(1); |
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return -1; |
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} else if (argc > 3) { |
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send_error(5); |
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return -1; |
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} |
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|
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build_needs_escape(); |
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|
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if (argv[2] == NULL) |
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index_directory(argv[1], argv[1]); |
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else |
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index_directory(argv[1], argv[2]); |
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|
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time(&timep); |
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#ifdef USE_LOCALTIME |
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timeptr = localtime(&timep); |
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#else |
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timeptr = gmtime(&timep); |
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#endif |
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now = strdup(asctime(timeptr)); |
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now[strlen(now) - 1] = '\0'; |
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#ifdef USE_LOCALTIME |
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printf("</table>\n<hr noshade>\nIndex generated %s %s\n" |
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"<!-- This program is part of the Boa Webserver Copyright (C) 1991-2002 http://www.boa.org -->\n" |
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"</body>\n</html>\n", now, TIMEZONE(timeptr)); |
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#else |
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printf("</table>\n<hr noshade>\nIndex generated %s UTC\n" |
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"<!-- This program is part of the Boa Webserver Copyright (C) 1991-2002 http://www.boa.org -->\n" |
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"</body>\n</html>\n", now); |
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#endif |
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|
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return 0; |
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} |