Subversion Repositories Keine

Rev

Rev 4 | Rev 6 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 nishi 1 
/* $Id: cgi.c 5 2024-09-11 10:27:37Z nishi $ */
2 
 
3 
#include "../config.h"
4 
 
5 
#include "kn_cgi.h"
6 
 
7 
#include <stdlib.h>
8 
#include <string.h>
9 
#include <stdbool.h>
10 
#include <stdio.h>
11 
 
12 
#include "kn_version.h"
13 
#include "kn_util.h"
4 nishi 14 
#include "kn_man.h"
2 nishi 15 
 
16 
struct q_entry {
17 
	char* key;
18 
	char* value;
19 
};
20 
 
21 
bool no = false;
22 
bool showmain = false;
23 
struct q_entry** entries = NULL;
4 nishi 24 
char* path;
2 nishi 25 
 
4 nishi 26 
char* kn_get_query(const char* key) {
2 nishi 27 
	if(entries == NULL) return NULL;
28 
	int i;
4 nishi 29 
	for(i = 0; entries[i] != NULL; i++) {
30 
		if(strcmp(entries[i]->key, key) == 0) return entries[i]->value;
2 nishi 31 
	}
32 
	return NULL;
33 
}
34 
 
4 nishi 35 
char* kn_null(const char* a) { return a == NULL ? "" : (char*)a; }
2 nishi 36 
 
4 nishi 37 
void kn_parse_query(void) {
2 nishi 38 
	char* query = getenv("QUERY_STRING");
4 nishi 39 
	if(query != NULL) {
2 nishi 40 
		entries = malloc(sizeof(*entries));
41 
		entries[0] = NULL;
42 
		int i;
43 
		int incr = 0;
4 nishi 44 
		for(i = 0;; i++) {
45 
			if(query[i] == 0 || query[i] == '&') {
2 nishi 46 
				char* a = malloc(i - incr + 1);
4 nishi 47 
				memcpy(a, query + incr, i - incr);
2 nishi 48 
				a[i - incr] = 0;
49 
 
50 
				char* key = a;
51 
				char* value = "";
52 
 
53 
				int j;
4 nishi 54 
				for(j = 0; key[j] != 0; j++) {
55 
					if(key[j] == '=') {
2 nishi 56 
						key[j] = 0;
57 
						value = key + j + 1;
58 
						break;
59 
					}
60 
				}
61 
 
62 
				struct q_entry* e = malloc(sizeof(*e));
63 
				e->key = kn_strdup(key);
64 
				e->value = kn_strdup(value);
65 
 
66 
				struct q_entry** old = entries;
4 nishi 67 
				for(j = 0; old[j] != NULL; j++)
68 
					;
2 nishi 69 
				entries = malloc(sizeof(*entries) * (j + 2));
70 
				for(j = 0; old[j] != NULL; j++) entries[j] = old[j];
71 
				entries[j] = e;
72 
				entries[j + 1] = NULL;
73 
				free(old);
74 
 
75 
				free(a);
76 
 
77 
				incr = i + 1;
78 
				if(query[i] == 0) break;
79 
			}
80 
		}
81 
	}
4 nishi 82 
	if(kn_get_query("page") == NULL) {
2 nishi 83 
		printf("Status: 200 OK\n\n");
84 
		showmain = true;
4 nishi 85 
	} else {
86 
		if((path = kn_find(MANPAGE_DIR, kn_get_query("page"))) != NULL) {
87 
			printf("Status: 200 OK\n\n");
88 
		} else {
89 
			printf("Status: 404 Not Found\n\n");
90 
			no = true;
91 
		}
2 nishi 92 
	}
93 
}
94 
 
4 nishi 95 
void kn_cgi(void) {
2 nishi 96 
	printf("<html>\n");
97 
	printf("	<head>\n");
98 
	printf("		<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n");
99 
	printf("		<title>Keine - ");
4 nishi 100 
	if(no) {
2 nishi 101 
		printf("Not found");
4 nishi 102 
	} else if(showmain) {
2 nishi 103 
		printf("Main");
4 nishi 104 
	} else {
105 
		printf("%s", kn_get_query("page"));
2 nishi 106 
	}
107 
	printf("</title>\n");
108 
	printf("		<style>\n");
109 
	printf("html {\n");
110 
	printf("	background-color: #222222;\n");
111 
	printf("	color: #ffffff;\n");
112 
	printf("}\n");
113 
	printf("body {\n");
114 
	printf("	width: 900px;\n");
115 
	printf("	margin: 0 auto;\n");
116 
	printf("}\n");
117 
	printf("a:link {\n");
118 
	printf("	color: #88f;\n");
119 
	printf("}\n");
120 
	printf("a:visited {\n");
121 
	printf("	color: #44b;\n");
122 
	printf("}\n");
123 
	printf("		</style>\n");
124 
	printf("	</head>\n");
125 
	printf("	<body>\n");
126 
	printf("		<div style=\"text-align: center;\">\n");
127 
	printf("			<form action=\"%s%s\">\n", getenv("SCRIPT_NAME"), kn_null(getenv("PATH_INFO")));
128 
	printf("				<a href=\"%s%s\">Main</a> | ", getenv("SCRIPT_NAME"), kn_null(getenv("PATH_INFO")));
129 
	printf("				Name: <input name=\"page\">\n");
130 
	printf("				<input type=\"submit\">\n");
131 
	printf("			</form>\n");
132 
	printf("		</div>\n");
133 
	printf("		<hr>\n");
4 nishi 134 
	if(no) {
2 nishi 135 
		printf("		Not found.\n");
4 nishi 136 
	} else if(showmain) {
137 
		printf("%s", MAIN_HTML);
138 
	} else {
139 
		printf("<pre>");
140 
		char* c = kn_manpage_process(path);
141 
		if(c != NULL) {
142 
			printf("%s", c);
143 
			free(c);
144 
		}
145 
		printf("</pre>\n");
2 nishi 146 
	}
147 
	printf("		<hr>\n");
5 nishi 148 
#ifdef FOOTER_HTML
149 
	printf("%s\n", FOOTER_HTML);
150 
	printf("		<hr>\n");
151 
#endif
4 nishi 152 
	printf("		<i>Generated by <a href=\"http://nishi.boats/keine\">Keine</a> %s</i>\n", kn_get_version());
2 nishi 153 
	printf("	</body>\n");
154 
	printf("</html>\n");
4 nishi 155 
	if(path != NULL) free(path);
2 nishi 156 
}