📄 bookmarks.c
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/* * Bookmarks server (chat version). * * NOTE: this code illustrates how to make a dpi-program. * * Copyright 2002 Jorge Arellano Cid <jcid@dillo.org> * * 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. * *//* Todo: this server is not assembling the received packets. * This means it currently expects dillo to send full dpi tags * within the socket; if that fails, everything stops. * This is not hard to fix, mainly is a matter of expecting the * final '>' of a tag. */#include <stdio.h>#include <stdlib.h>#include <stddef.h>#include <string.h>#include <unistd.h>#include <errno.h>#include <ctype.h>#include <sys/socket.h>#include <sys/stat.h>#include <sys/types.h>#include <sys/un.h>#include <time.h>#include <netdb.h>#include <fcntl.h>#include <signal.h>#include <glib.h>/* This one os tricky, some sources state it should include the byte * for the terminating NULL, and others say it shouldn't. */# define D_SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) \ + strlen ((ptr)->sun_path))typedef struct { gint key; gint section; gchar *url; gchar *title;} BmRec;typedef struct { gint section; gchar *title; gint o_sec; /* private, for normalization */} BmSec;/* * Local data */static char *Header = "Content-type: text/html\n\n";static char *BmFile = NULL;static time_t BmFileTimeStamp = 0;static GSList *B_bms = NULL;static gint bm_key = 0;static GSList *B_secs = NULL;static gint sec_key = 0;static int MODIFY_PAGE_NUM = 1;/* * Forward declarations */int send_bm_page(int OutFD);/* -- HTML templates ------------------------------------------------------- */char *mainpage_header ="<html>\n""<head>\n""<title>Bookmarks</title>\n""</head>\n""<body bgcolor='#778899' link='black' vlink='gray'>\n""<table border='1' cellpadding='0' width='100%'>\n"" <tr><td>\n"" <table width='100%' bgcolor='#b4b4b4'>\n"" <tr>\n"" <td> Bookmarks::</td>\n"" <td width='100%' align='right'>\n"" [<a href='dpi:/bm/modify'>modify</a>]\n"" </td></tr>\n"" </table></td></tr>\n""</table>\n""<br>\n";char *modifypage_header ="<html>\n""<head>\n""<title>Bookmarks</title>\n""</head>\n""<body bgcolor='#778899' link='black' vlink='gray'>\n""<table border='1' cellpadding='0' width='100%'>\n"" <tr><td>\n"" <table width='100%' bgcolor='#b4b4b4'>\n"" <tr>\n"" <td> Bookmarks :: modify</td></tr>\n"" </table></td></tr> \n""</table> \n""\n""<form>\n""<table width='100%' border='1' cellpadding='0'>\n"" <tr><td>\n"" <table width='100%' bgcolor='teal'>\n"" <tr>\n"" <td><b>Select an operation </b></td>\n"" <td><select name='operation'>\n"" <option value='none' selected>--\n"" <option value='delete'>Delete\n"" <option value='move'>Move\n"" <option value='modify'>Modify\n"" <option value='add_sec'>Add Section\n"" <option value='add_url'>Add URL\n"" </select></td>\n"" <td><b>, mark its operands, and </b></td>\n"" <td><input type='submit' name='submit' value='submit.'></td>\n"" <td width='100%'></td>\n"" </tr>\n"" </table></td></tr>\n""</table>\n";char *mainpage_sections_header ="<table border='1' cellpadding='0' cellspacing='20' width='100%'>\n"" <tr valign='top'>\n"" <td>\n"" <table bgcolor='#b4b4b4' border='1' cellpadding='4' cellspacing='1'>\n"" <tr><td>\n"" <table width='100%' bgcolor='#b4b4b4'>\n"" <tr><td><small>Sections:</small></td></tr></table></td></tr>\n";char *modifypage_sections_header ="<table border='1' cellpadding='0' cellspacing='20' width='100%'>\n"" <tr valign='top'>\n"" <td>\n"" <table bgcolor='#b4b4b4' border='1'>\n"" <tr><td>\n"" <table width='100%' bgcolor='#b4b4b4'>\n"" <tr><td><small>Sections:</small></td></tr></table></td></tr>\n";char *mainpage_sections_item =" <tr><td>\n"" <table width='100%%' bgcolor='#b4b4b4'>\n"" <tr><td><b><a href='#s%d'>%s</a></b></td></tr></table></td></tr>\n";char *modifypage_sections_item =" <tr><td>\n"" <table width='100%%' bgcolor='#b4b4b4'>\n"" <tr><td width='1%%'><input type='checkbox' name='s%d'></td>\n"" <td><b><a href='#s%d'>%s</a></b></td></tr></table></td></tr>\n";char *mainpage_sections_footer =" </table>\n";char *modifypage_sections_footer =" </table>\n";char *mainpage_middle1 =" </td>\n"" <td width='100%'>\n";char *modifypage_middle1 =" </td>\n"" <td width='100%'>\n";char *mainpage_section_card_header =" <a name='s%d'></a>\n"" <table bgcolor='#bfbfbf' width='100%%' cellspacing='2'>\n"" <tr>\n"" <td bgcolor='#bf0c0c'><font color='white'><b>\n"" %s </b></font></td>\n"" <td bgcolor='white' width='100%%'> </td></tr>\n";char *modifypage_section_card_header =" <a name='s%d'></a>\n"" <table bgcolor='#bfbfbf' width='100%%' cellspacing='2'>\n"" <tr>\n"" <td bgcolor='#bf0c0c'><font color='white'><b>\n"" %s </b></font></td>\n"" <td bgcolor='white' width='100%%'> </td></tr>\n";char *mainpage_section_card_item =" <tr><td colspan='2'>\n"" <a href='%s'>%s</a> </td></tr>\n";char *modifypage_section_card_item =" <tr>\n"" <td colspan='2'><input type='checkbox' name='url%d'>\n"" <a href='%s'>%s</a></td></tr>\n";char *mainpage_section_card_footer =" </table>\n"" <hr>\n";char *modifypage_section_card_footer =" </table>\n"" <hr>\n";char *mainpage_footer =" </td>\n"" </tr>\n""</table>\n""</body>\n""</html>\n";char *modifypage_footer =" </td>\n"" </tr>\n""</table>\n""</form>\n""</body>\n""</html>\n";/* ------------------------------------------------------------------------- */char *modifypage_add_section_page ="<html>\n""<head>\n""<title>Bookmarks</title>\n""</head>\n""<body bgcolor='#778899' link='black' vlink='gray'>\n""<table border='1' cellpadding='0' width='100%'>\n"" <tr><td colspan='2'>\n"" <table bgcolor='#b4b4b4' width='100%'>\n"" <tr><td bgcolor='#b4b4b4'> Modify bookmarks:: add section\n"" </td></tr></table></td></tr>\n""</table>\n""<br>\n""<form>\n"" <input type='hidden' name='operation' value='add_section'>\n""<table border='1' width='100%'>\n"" <tr>\n"" <td bgcolor='olive'><b>New section:</b></td>\n"" <td bgcolor='white' width='100%'></td></tr>\n""</table>\n""<table width='100%' cellpadding='10'>\n""<tr><td>\n"" <table width='100%' bgcolor='teal'>\n"" <tr>\n"" <td>Title:</td>\n"" <td><input type='text' name='title' size='64'></td></tr>\n"" </table>\n"" </td></tr>\n""</table>\n""<table width='100%' cellpadding='4' border='0'>\n""<tr><td bgcolor='#a0a0a0'>\n"" <input type='submit' name='submit' value='submit.'></td></tr>\n""</table>\n""</form>\n""</body>\n""</html>\n""\n";/* ------------------------------------------------------------------------- */char *modifypage_update_header ="<html>\n""<head>\n""<title>Bookmarks</title>\n""</head>\n""<body bgcolor='#778899' link='black' vlink='gray'>\n""<table border='1' cellpadding='0' width='100%'>\n"" <tr><td colspan='2'>\n"" <table bgcolor='#b4b4b4' width='100%'>\n"" <tr><td bgcolor='#b4b4b4'> Modify bookmarks:: update\n"" </td></tr></table></td></tr>\n""</table>\n""<br>\n""<form>\n""<input type='hidden' name='operation' value='modify2'>\n";char *modifypage_update_title ="<table border='1' width='100%%'>\n"" <tr>\n"" <td bgcolor='olive'><b>%s</b></td>\n"" <td bgcolor='white' width='100%%'></td></tr>\n""</table>\n";char *modifypage_update_item_header ="<table width='100%' cellpadding='10'>\n";char *modifypage_update_item ="<tr><td>\n"" <table width='100%%' bgcolor='teal'>\n"" <tr>\n"" <td>Title:</td>\n"" <td><input type='text' name='title%d' size='64'\n"" value='%s'></td></tr>\n"" <tr>\n"" <td>URL:</td>\n"" <td>%s</td></tr>\n"" </table>\n"" </td></tr>\n";char *modifypage_update_item2 ="<tr><td>\n"" <table width='100%%' bgcolor='teal'>\n"" <tr>\n"" <td>Title:</td>\n"" <td><input type='text' name='s%d' size='64'\n"" value='%s'></td></tr>\n"" </table>\n"" </td></tr>\n";char *modifypage_update_item_footer ="</table>\n";char *modifypage_update_footer ="<table width='100%' cellpadding='4' border='0'>\n""<tr><td bgcolor='#a0a0a0'>\n"" <input type='submit' name='submit' value='submit.'></td></tr>\n""</table>\n""</form>\n""</body>\n""</html>\n";/* ------------------------------------------------------------------------- */char *modifypage_add_url ="<html>\n""<head>\n""<title>Bookmarks</title>\n""</head>\n""<body bgcolor='#778899' link='black' vlink='gray'>\n""<table border='1' cellpadding='0' width='100%'>\n"" <tr><td colspan='2'>\n"" <table bgcolor='#b4b4b4' width='100%'>\n"" <tr><td bgcolor='#b4b4b4'> Modify bookmarks:: add url\n"" </td></tr></table></td></tr>\n""</table>\n""<br>\n""<form>\n""<input type='hidden' name='operation' value='add_url2'>\n""<table border='1' width='100%'>\n"" <tr>\n"" <td bgcolor='olive'><b>Add url:</b></td>\n"" <td bgcolor='white' width='100%'></td></tr>\n""</table>\n""<table width='100%' cellpadding='10'>\n""<tr><td>\n"" <table width='100%' bgcolor='teal'>\n"" <tr>\n"" <td>Title:</td>\n"" <td><input type='text' name='title' size='64'></td></tr>\n"" <tr>\n"" <td>URL:</td>\n"" <td><input type='text' name='url' size='64'></td></tr>\n"" </table>\n"" </td></tr>\n""</table>\n""<table width='100%' cellpadding='4' border='0'>\n""<tr><td bgcolor='#a0a0a0'>\n"" <input type='submit' name='submit' value='submit.'></td></tr>\n""</table>\n""</form>\n""</body>\n""</html>\n";/* ------------------------------------------------------------------------- *//* * Return a new string with spaces changed with */char *make_one_line_str(char *str){ char *new_str; int i, j, n; for (i = 0, n = 0; str[i]; ++i) if (str[i] == ' ') ++n; new_str = g_new(char, strlen(str) + 6*n + 1); new_str[0] = 0; for (i = 0, j = 0; str[i]; ++i) { if (str[i] == ' ') { strcpy(new_str + j, " "); j += 6; } else { new_str[j] = str[i]; new_str[++j] = 0; } } return new_str;}/* * Use character stuffing for characters given in 'esc_set'. * Return value: New stuffed string. */gchar *Stuff_chars(const gchar *str, const gchar *esc_set){ gint i; gchar *p, *sstr = NULL; if ((p = strpbrk(str, esc_set))) { /* start stuffing */ GString *gstr = g_string_new(str); for (i = p - str; gstr->str[i]; ++i) if (strchr(esc_set, gstr->str[i])) { g_string_insert_c(gstr, i, gstr->str[i]); ++i; } sstr = gstr->str; g_string_free(gstr, FALSE); } return (sstr ? sstr : g_strdup(str));}/* * Task: given a tag and an attribute name, return its value. * (character stuffing is removed here) * Return value: the attribute value, or NULL if not present or malformed. */char *Get_attr_value(char *tag, int tagsize, char *attrname){ char *p, *q, *ltag, quote, *start, *val = NULL; ltag = g_strndup(tag, tagsize); if ((p = strstr(ltag, attrname)) && (p = strchr(p, '=')) && (p = strpbrk(p, "'\"")) ) { quote = *p; start = ++p; while ((q = strchr(p, quote)) && q[1] == quote) p = q + 2; if (q) { val = g_strndup(start, q - start); for (p = q = val; (*q = *p); ++p, ++q) if ((*p == '"' || *p == '\'') && p[1] == p[0]) ++p; } } g_free(ltag); return val;}/* * Given an urlencoded string, return it to the original version. */void Unencode_str(char *e_str){ char *p, *e; for (p = e = e_str; *e; e++, p++) { if (*e == '+') { *p = ' '; } else if (*e == '%') { if (g_strncasecmp(e, "%0D%0A", 6) == 0) { *p = '\n';⌨️ 快捷键说明
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