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1 nishi 1 
/* $Id: modern.c 15 2024-08-21 15:36:37Z nishi $ */
2 
 
3 
#include "rv_query.h"
4 
 
5 
#include "rv_util.h"
6 
#include "rv_version.h"
3 nishi 7 
#include "rv_auth.h"
1 nishi 8 
#include "rv_db.h"
11 nishi 9 
#include "rv_repo.h"
1 nishi 10 
 
11 
#include "../../config.h"
12 
 
13 nishi 13 
#ifdef USE_ENSCRIPT
14 
#include "rv_enscript.h"
15 
#endif
16 
 
7 nishi 17 
#include <stdio.h>
1 nishi 18 
#include <stdlib.h>
19 
#include <string.h>
20 
 
21 
extern char* buffer;
22 
void add_data(char** data, const char* txt);
23 
void render_stuff();
24 
 
25 
char* title = NULL;
26 
char* desc = NULL;
27 
char* page = NULL;
10 nishi 28 
char* nav = NULL;
11 nishi 29 
char* grepouser;
6 nishi 30 
extern char* user;
1 nishi 31 
 
11 nishi 32 
char* url_escape(const char* input) {
33 
	const char hex[] = "0123456789ABCDEF";
34 
	char* r = malloc(1);
35 
	r[0] = 0;
36 
	char cbuf[2];
37 
	cbuf[1] = 0;
38 
	int i;
39 
	for(i = 0; input[i] != 0; i++) {
40 
		if(input[i] == 0x20 || input[i] == 0x22 || input[i] == 0x25 || input[i] == 0x2d || input[i] == 0x2e || input[i] == 0x3c || input[i] == 0x3e || input[i] == 0x5c || input[i] == 0x5e || input[i] == 0x5f || input[i] == 0x60 || input[i] == 0x7b || input[i] == 0x7c || input[i] == 0x7d || input[i] == 0x7e || input[i] == 0x21 || input[i] == 0x23 || input[i] == 0x24 || input[i] == 0x26 || input[i] == 0x27 || input[i] == 0x28 || input[i] == 0x29 || input[i] == 0x2a || input[i] == 0x2b || input[i] == 0x2c || input[i] == 0x2f || input[i] == 0x3a || input[i] == 0x3b || input[i] == 0x3d || input[i] == 0x3f || input[i] == 0x40 || input[i] == 0x5b || input[i] == 0x5d) {
41 
			add_data(&r, "%");
42 
			cbuf[0] = hex[(input[i] >> 4) & 0xf];
43 
			add_data(&r, cbuf);
44 
			cbuf[0] = hex[input[i] & 0xf];
45 
			add_data(&r, cbuf);
46 
		} else {
47 
			cbuf[0] = input[i];
48 
			add_data(&r, cbuf);
49 
		}
50 
	}
51 
	return r;
52 
}
53 
 
54 
char* html_escape(const char* input) {
55 
	char* r = malloc(1);
56 
	r[0] = 0;
57 
	char cbuf[2];
58 
	cbuf[1] = 0;
59 
	int i;
60 
	for(i = 0; input[i] != 0; i++) {
61 
		if(input[i] == '<') {
62 
			add_data(&r, "&lt;");
63 
		} else if(input[i] == '>') {
64 
			add_data(&r, "&gt;");
65 
		} else {
66 
			cbuf[0] = input[i];
67 
			add_data(&r, cbuf);
68 
		}
69 
	}
70 
	return r;
71 
}
72 
 
73 
char* html_escape_nl_to_br(const char* input) {
74 
	char* r = malloc(1);
75 
	r[0] = 0;
76 
	char cbuf[2];
77 
	cbuf[1] = 0;
78 
	int i;
79 
	for(i = 0; input[i] != 0; i++) {
80 
		if(input[i] == '<') {
81 
			add_data(&r, "&lt;");
82 
		} else if(input[i] == '>') {
83 
			add_data(&r, "&gt;");
84 
		} else if(input[i] == '\n') {
85 
			add_data(&r, "<br>");
86 
		} else {
87 
			cbuf[0] = input[i];
88 
			add_data(&r, cbuf);
89 
		}
90 
	}
91 
	return r;
92 
}
93 
 
94 
void list_repo(const char* name, const char* rev) {
95 
	char* showname = html_escape(name);
96 
	char* urluser = url_escape(user);
97 
	char* urlrepo = url_escape(name);
98 
	add_data(&page, "<tr>");
99 
	add_data(&page, "<td><a href=\"");
100 
	add_data(&page, INSTANCE_ROOT);
101 
	add_data(&page, "/?page=repo&reponame=");
102 
	add_data(&page, urlrepo);
103 
	add_data(&page, "&username=");
104 
	add_data(&page, urluser);
105 
	add_data(&page, "\">");
106 
	add_data(&page, showname);
107 
	add_data(&page, "</a></td>");
108 
	add_data(&page, "<td>");
109 
	add_data(&page, rev);
110 
	add_data(&page, "</td>");
111 
	add_data(&page, "</tr>");
112 
	free(showname);
113 
	free(urluser);
114 
	free(urlrepo);
115 
}
116 
 
117 
int fcounter = 0;
118 
void list_files(const char* pathname) {
119 
	if(fcounter == 0) {
120 
		add_data(&nav, "<li><a href=\"#filelist\">File List</a></li>\n");
121 
		add_data(&page, "<h2 id=\"filelist\">File List</h2>\n");
122 
		add_data(&page, "<tr style=\"background-color: #D2E1F6;\"><th>Name</th><th>Size</th></tr>\n");
12 nishi 123 
		char* path = rv_get_query("path");
124 
		if(path == NULL) path = "/";
125 
		if(strcmp(path, "/") != 0) {
126 
			char* query = rv_strdup("?page=repo&reponame=");
127 
			char* esc;
128 
			esc = url_escape(rv_get_query("reponame"));
129 
			add_data(&query, esc);
130 
			free(esc);
131 
			add_data(&query, "&username=");
15 nishi 132 
			esc = url_escape(rv_get_query("username"));
12 nishi 133 
			add_data(&query, esc);
134 
			free(esc);
135 
			add_data(&query, "&path=");
136 
 
137 
			char* urlpath = rv_strdup(path);
138 
			int i;
139 
			int counter = 0;
140 
			int rep = urlpath[strlen(urlpath) - 1] == '/' ? 2 : 1;
141 
			for(i = strlen(urlpath) - 1; i >= 0; i--) {
142 
				char oldc = urlpath[i];
143 
				urlpath[i] = 0;
144 
				if(oldc == '/') {
145 
					counter++;
146 
					if(counter == 2) {
147 
						break;
148 
					}
149 
				}
150 
			}
151 
 
152 
			if(strlen(urlpath) == 0) {
153 
				free(urlpath);
154 
				urlpath = rv_strdup("/");
155 
			}
156 
 
157 
			esc = url_escape(urlpath);
158 
			add_data(&query, esc);
159 
			free(esc);
160 
 
161 
			add_data(&page, "<tr><td><a href=\"");
162 
			add_data(&page, query);
163 
			add_data(&page, "\">../</a></td><td>&lt;DIR&gt;</td></tr>\n");
164 
			fcounter++;
165 
			free(query);
166 
		}
11 nishi 167 
	}
168 
	fcounter++;
169 
	add_data(&page, "<tr style=\"background-color: #");
170 
	if((fcounter % 2) == 0) {
171 
		add_data(&page, "D2E1C0");
172 
	} else {
173 
		add_data(&page, "FFFFFF");
174 
	}
175 
	char* path = rv_get_query("path");
176 
	if(path == NULL) path = "/";
177 
	char* query = rv_strdup("?page=repo&reponame=");
178 
	char* esc;
179 
	esc = url_escape(rv_get_query("reponame"));
180 
	add_data(&query, esc);
181 
	free(esc);
182 
	add_data(&query, "&username=");
15 nishi 183 
	esc = url_escape(rv_get_query("username"));
11 nishi 184 
	add_data(&query, esc);
185 
	free(esc);
186 
	add_data(&query, "&path=");
13 nishi 187 
	char* urlpath = rv_strcat3(path, "/", pathname);
11 nishi 188 
	esc = url_escape(urlpath);
189 
	add_data(&query, esc);
190 
	free(esc);
191 
	char* sz = malloc(128);
192 
	sprintf(sz, "%lld", rv_get_filesize(grepouser, urlpath));
193 
	add_data(&page, "\"><td><a href=\"");
194 
	add_data(&page, query);
195 
	add_data(&page, "\">");
196 
	add_data(&page, pathname);
197 
	add_data(&page, "</a></td>\n");
198 
	add_data(&page, "<td>\n");
199 
	if(strcmp(sz, "-1") != 0) {
200 
		add_data(&page, sz);
201 
	} else {
202 
		add_data(&page, "&lt;DIR&gt;");
203 
	}
204 
	add_data(&page, "</td>\n");
205 
	free(sz);
206 
	add_data(&page, "</tr>\n");
207 
	free(query);
208 
	free(urlpath);
209 
}
210 
 
3 nishi 211 
void render_page(void) {
1 nishi 212 
	rv_load_query('Q');
213 
	char* query = rv_get_query("page");
214 
	if(query == NULL) query = "welcome";
215 
 
3 nishi 216 
	if(strcmp(query, "welcome") == 0) {
1 nishi 217 
		title = rv_strdup("Welcome");
218 
		desc = rv_strdup("Welcome to " INSTANCE_NAME ".");
219 
		page = rv_strcat3("Welcome to " INSTANCE_NAME ".<br>This instance is running RepoView version ", rv_get_version(), ".");
13 nishi 220 
#ifdef ALLOW_SIGNUP
221 
	} else if(strcmp(query, "signup") == 0) {
222 
		title = rv_strdup("Signup");
223 
		desc = rv_strdup("You can create your account here.");
224 
		page = rv_strdup("");
225 
 
226 
		add_data(&page, "<form action=\"");
227 
		add_data(&page, INSTANCE_ROOT);
228 
		add_data(&page, "/?page=sendsignup\" method=\"POST\">\n");
229 
		add_data(&page, "	<table border=\"0\">\n");
230 
		add_data(&page, "		<tr>\n");
231 
		add_data(&page, "			<th>Username</th>\n");
232 
		add_data(&page, "			<td>\n");
233 
		add_data(&page, "				<input name=\"username\">\n");
234 
		add_data(&page, "			</td>\n");
235 
		add_data(&page, "		</tr>\n");
236 
		add_data(&page, "		<tr>\n");
237 
		add_data(&page, "			<th>Password</th>\n");
238 
		add_data(&page, "			<td>\n");
239 
		add_data(&page, "				<input name=\"password\" type=\"password\">\n");
240 
		add_data(&page, "			</td>\n");
241 
		add_data(&page, "		</tr>\n");
242 
		add_data(&page, "	</table>\n");
243 
		char cbuf[2];
244 
		cbuf[0] = REPO_USER_DELIM;
245 
		cbuf[1] = 0;
246 
		add_data(&page, "Username cannot contain '<code>");
247 
		add_data(&page, cbuf);
14 nishi 248 
		add_data(&page, "</code>' and '<code>#</code>'.<br>");
13 nishi 249 
		add_data(&page, "	<input type=\"submit\" value=\"Signup\">\n");
250 
		add_data(&page, "</form>\n");
251 
	} else if(strcmp(query, "sendsignup") == 0) {
252 
		title = rv_strdup("Signup Result");
253 
		page = rv_strdup("");
254 
 
255 
		rv_load_query('P');
256 
		if(user != NULL) {
257 
			page = rv_strdup("It looks like you are already logged in.<br>Want to <a href=\"");
258 
			add_data(&page, INSTANCE_ROOT);
259 
			add_data(&page, "/?page=logout\">log out</a>?\n");
260 
		} else if(rv_get_query("username") == NULL || rv_get_query("password") == NULL) {
261 
			add_data(&page, "Invalid form.\n");
262 
		} else {
263 
			if(rv_has_user(rv_get_query("username"))) {
264 
				add_data(&page, "User already exists.");
265 
			} else {
266 
				if(user != NULL) free(user);
267 
				int i;
268 
				bool reject = false;
269 
				char* name = rv_get_query("username");
270 
				for(i = 0; name[i] != 0; i++) {
14 nishi 271 
					if(name[i] == REPO_USER_DELIM || name[i] == '#') {
13 nishi 272 
						char cbuf[2];
273 
						cbuf[0] = REPO_USER_DELIM;
274 
						cbuf[1] = 0;
275 
						add_data(&page, "Username cannot contain '<code>");
276 
						add_data(&page, cbuf);
277 
						add_data(&page, "</code>'.");
278 
						reject = true;
279 
						break;
280 
					}
281 
				}
282 
				if(!reject) {
283 
					rv_create_user(rv_get_query("username"), rv_get_query("password"));
284 
					user = rv_strdup(rv_get_query("username"));
285 
					add_data(&page, "Welcome.\n");
286 
					rv_save_login(rv_get_query("username"));
287 
				}
288 
			}
289 
		}
290 
#endif
3 nishi 291 
	} else if(strcmp(query, "login") == 0) {
1 nishi 292 
		title = rv_strdup("Login");
293 
		desc = rv_strdup("You can log in to your account here.");
294 
		page = rv_strdup("");
295 
 
296 
		add_data(&page, "<form action=\"");
297 
		add_data(&page, INSTANCE_ROOT);
298 
		add_data(&page, "/?page=sendlogin\" method=\"POST\">\n");
299 
		add_data(&page, "	<table border=\"0\">\n");
300 
		add_data(&page, "		<tr>\n");
301 
		add_data(&page, "			<th>Username</th>\n");
302 
		add_data(&page, "			<td>\n");
303 
		add_data(&page, "				<input name=\"username\">\n");
304 
		add_data(&page, "			</td>\n");
305 
		add_data(&page, "		</tr>\n");
306 
		add_data(&page, "		<tr>\n");
307 
		add_data(&page, "			<th>Password</th>\n");
308 
		add_data(&page, "			<td>\n");
309 
		add_data(&page, "				<input name=\"password\" type=\"password\">\n");
310 
		add_data(&page, "			</td>\n");
311 
		add_data(&page, "		</tr>\n");
312 
		add_data(&page, "	</table>\n");
313 
		add_data(&page, "	<input type=\"submit\" value=\"Login\">\n");
314 
		add_data(&page, "</form>\n");
3 nishi 315 
	} else if(strcmp(query, "sendlogin") == 0) {
1 nishi 316 
		title = rv_strdup("Login Result");
317 
		page = rv_strdup("");
318 
 
319 
		rv_load_query('P');
11 nishi 320 
		if(user != NULL) {
321 
			page = rv_strdup("It looks like you are already logged in.<br>Want to <a href=\"");
322 
			add_data(&page, INSTANCE_ROOT);
13 nishi 323 
			add_data(&page, "/?page=logout\">log out</a>?\n");
11 nishi 324 
		} else if(rv_get_query("username") == NULL || rv_get_query("password") == NULL) {
5 nishi 325 
			add_data(&page, "Invalid form.\n");
3 nishi 326 
		} else {
327 
			if(rv_has_user(rv_get_query("username"))) {
5 nishi 328 
				if(rv_check_password(rv_get_query("username"), rv_get_query("password"))) {
6 nishi 329 
					if(user != NULL) free(user);
330 
					user = rv_strdup(rv_get_query("username"));
5 nishi 331 
					add_data(&page, "Welcome back.\n");
332 
					rv_save_login(rv_get_query("username"));
333 
				} else {
334 
					add_data(&page, "Invalid password.");
335 
				}
3 nishi 336 
			} else {
5 nishi 337 
				add_data(&page, "User does not exist.");
1 nishi 338 
			}
339 
		}
7 nishi 340 
	} else if(strcmp(query, "sendlogout") == 0) {
341 
		title = rv_strdup("Logout Result");
342 
		page = rv_strdup("");
343 
		if(user == NULL) {
344 
			add_data(&page, "You were not logged in.\n");
345 
		} else {
346 
			rv_logout();
347 
			add_data(&page, "Goodbye.\n");
348 
			free(user);
349 
			user = NULL;
350 
		}
6 nishi 351 
	} else if(strcmp(query, "mypage") == 0) {
352 
		title = rv_strdup("My Page");
353 
		desc = rv_strdup("You manage your information here.");
354 
		if(user == NULL) {
355 
			page = rv_strdup("It looks like you are not logged in.<br>Want to <a href=\"");
356 
			add_data(&page, INSTANCE_ROOT);
357 
			add_data(&page, "/?page=login\">log in</a>?\n");
358 
		}
9 nishi 359 
	} else if(strcmp(query, "myrepo") == 0) {
360 
		title = rv_strdup("My Repositories");
361 
		desc = rv_strdup("You manage your repositories here.");
362 
		if(user == NULL) {
363 
			page = rv_strdup("It looks like you are not logged in.<br>Want to <a href=\"");
364 
			add_data(&page, INSTANCE_ROOT);
365 
			add_data(&page, "/?page=login\">log in</a>?\n");
10 nishi 366 
		} else {
11 nishi 367 
			char cbuf[2];
368 
			cbuf[0] = REPO_USER_DELIM;
369 
			cbuf[1] = 0;
10 nishi 370 
			nav = rv_strdup("");
371 
			add_data(&nav, "<li><a href=\"#createrepo\">Create a repository</a></li>\n");
372 
			add_data(&nav, "<li><a href=\"#repolist\">Repository List</a></li>\n");
373 
			page = rv_strdup("");
374 
			add_data(&page, "<h2 id=\"createrepo\">Create a repository</h2>\n");
375 
			add_data(&page, "<form action=\"");
376 
			add_data(&page, INSTANCE_ROOT);
377 
			add_data(&page, "/?page=createrepo\" method=\"POST\">\n");
378 
			add_data(&page, "	<table border=\"0\">\n");
379 
			add_data(&page, "		<tr>\n");
380 
			add_data(&page, "			<th>Repository name</th>\n");
381 
			add_data(&page, "			<td>\n");
382 
			add_data(&page, "				<input name=\"name\">\n");
383 
			add_data(&page, "			</td>\n");
384 
			add_data(&page, "			<td><input type=\"submit\" value=\"Create\"></td>\n");
385 
			add_data(&page, "		</tr>\n");
386 
			add_data(&page, "	</table>\n");
11 nishi 387 
			add_data(&page, "Repository name cannot contain '<code>");
388 
			add_data(&page, cbuf);
14 nishi 389 
			add_data(&page, "</code>' and '<code>#</code>'.");
10 nishi 390 
			add_data(&page, "</form>\n");
391 
			add_data(&page, "<h2 id=\"repolist\">Repository List</h2>\n");
11 nishi 392 
			add_data(&page, "<table border=\"0\">\n");
393 
			add_data(&page, "<tr><th>Repository name</th><th>Revision</th></tr>\n");
394 
			rv_repo_list(user, list_repo);
395 
			add_data(&page, "</table>\n");
9 nishi 396 
		}
11 nishi 397 
	} else if(strcmp(query, "createrepo") == 0) {
398 
		title = rv_strdup("Creating Repository Result");
399 
		page = rv_strdup("");
400 
 
401 
		rv_load_query('P');
402 
		if(user == NULL) {
403 
			page = rv_strdup("It looks like you are not logged in.<br>Want to <a href=\"");
404 
			add_data(&page, INSTANCE_ROOT);
405 
			add_data(&page, "/?page=login\">log in</a>?\n");
406 
		} else if(rv_get_query("name") == NULL) {
407 
			add_data(&page, "Invalid form.\n");
408 
		} else {
409 
			int i;
410 
			bool reject = false;
411 
			char* name = rv_get_query("name");
412 
			for(i = 0; name[i] != 0; i++) {
14 nishi 413 
				if(name[i] == REPO_USER_DELIM || name[i] == '#') {
11 nishi 414 
					char cbuf[2];
415 
					cbuf[0] = REPO_USER_DELIM;
416 
					cbuf[1] = 0;
417 
					add_data(&page, "Repository name cannot contain '<code>");
418 
					add_data(&page, cbuf);
419 
					add_data(&page, "</code>'.");
420 
					reject = true;
421 
					break;
422 
				}
423 
			}
424 
			if(!reject) {
425 
				char* ru = rv_construct_repouser(name, user);
426 
				if(rv_repo_exists(ru)) {
427 
					add_data(&page, "Repository already exists.");
428 
				} else {
429 
					char* esc;
430 
					rv_create_repo(ru);
431 
					add_data(&page, "Repository has been created.<br>\n");
432 
					add_data(&page, "<a href=\"");
433 
					add_data(&page, INSTANCE_ROOT);
434 
					esc = url_escape(name);
435 
					add_data(&page, "/?page=repo&reponame=");
436 
					add_data(&page, esc);
437 
					free(esc);
438 
					esc = url_escape(user);
439 
					add_data(&page, "&username=");
440 
					add_data(&page, esc);
441 
					free(esc);
442 
					add_data(&page, "\">Go to the repository</a>.\n");
443 
				}
444 
				free(ru);
445 
			}
446 
		}
7 nishi 447 
	} else if(strcmp(query, "logout") == 0) {
448 
		title = rv_strdup("Logout");
449 
		desc = rv_strdup("You can log out from your account here.");
450 
		if(user == NULL) {
451 
			page = rv_strdup("It looks like you are not logged in.<br>Want to <a href=\"");
452 
			add_data(&page, INSTANCE_ROOT);
453 
			add_data(&page, "/?page=login\">log in</a>?\n");
454 
		} else {
455 
			page = rv_strdup("");
456 
			add_data(&page, "Are you sure you want to log out?\n");
457 
			add_data(&page, "<form method=\"POST\" action=\"");
458 
			add_data(&page, INSTANCE_ROOT);
459 
			add_data(&page, "/?page=sendlogout\">\n");
460 
			add_data(&page, "	<input type=\"submit\" value=\"Yes\">\n");
461 
			add_data(&page, "</form>\n");
462 
		}
11 nishi 463 
	} else if(strcmp(query, "repo") == 0) {
464 
		title = rv_strdup("Repository");
465 
		desc = rv_strdup("");
466 
		page = rv_strdup("");
467 
		nav = rv_strdup("");
15 nishi 468 
		rv_load_query('Q');
11 nishi 469 
		if(rv_get_query("username") == NULL || rv_get_query("reponame") == NULL) {
470 
			add_data(&page, "Required parameters not set.");
471 
		} else {
15 nishi 472 
			char* ruser = rv_get_query("username");
11 nishi 473 
			char* repo = rv_get_query("reponame");
15 nishi 474 
			char* repouser = rv_construct_repouser(repo, ruser);
11 nishi 475 
			grepouser = repouser;
476 
			if(rv_repo_exists(repouser)) {
15 nishi 477 
				char* showuser = html_escape(ruser);
11 nishi 478 
				char* showrepo = html_escape(repo);
479 
				char* showreadme = rv_get_readme(repouser);
480 
				desc = html_escape_nl_to_br(showreadme);
481 
				add_data(&title, " - ");
482 
				add_data(&title, showrepo);
483 
				add_data(&title, "/");
484 
				add_data(&title, showuser);
485 
				free(showuser);
486 
				free(showrepo);
487 
				free(showreadme);
15 nishi 488 
#ifdef WWW_SVN_ROOT
489 
				add_data(&page, "<h2 id=\"repoinfo\">Info</h2>\n");
490 
				add_data(&page, "<a href=\"");
491 
				add_data(&page, WWW_SVN_ROOT);
492 
				add_data(&page, "/");
493 
				char* escru = url_escape(repouser);
494 
				add_data(&page, escru);
495 
				free(escru);
496 
				add_data(&page, "\">Raw repository</a>");
497 
#endif
11 nishi 498 
 
499 
				int isdir;
500 
				char* path = rv_get_query("path");
501 
				if(path == NULL) path = "/";
502 
				fcounter = 0;
503 
				add_data(&page, "<table border=\"0\" style=\"width: 100%;\">");
15 nishi 504 
				bool rej = false;
11 nishi 505 
				if(!rv_get_list(repouser, path, list_files, &isdir)) {
506 
					add_data(&page, "<tr><td>Path not found.</td></tr>\n");
15 nishi 507 
					rej = true;
11 nishi 508 
				}
509 
				add_data(&page, "</table>");
15 nishi 510 
				if(isdir == 0 && !rej) {
11 nishi 511 
					add_data(&nav, "<li><a href=\"#filecontent\">Content</a></li>");
512 
					add_data(&page, "<h2 id=\"filecontent\">Content</h2>\n");
513 
					add_data(&page, "<pre class=\"codeblock\"><code>");
13 nishi 514 
#ifdef USE_ENSCRIPT
515 
					int i;
516 
					char* ext = NULL;
517 
					for(i = strlen(path) - 1; i >= 0; i--) {
518 
						if(path[i] == '.') {
519 
							ext = path + i + 1;
520 
							break;
521 
						}
522 
					}
523 
					char* data = rv_enscript(repouser, path, ext);
524 
					if(data != NULL) {
525 
						add_data(&page, data);
526 
						free(data);
527 
					} else {
528 
						data = rv_read_file(repouser, path);
529 
						if(data != NULL) {
530 
							char* esc = html_escape_nl_to_br(data);
531 
							add_data(&page, esc);
532 
							free(esc);
533 
							free(data);
534 
						} else {
535 
							add_data(&page, "Cannot open the file.\n");
536 
						}
537 
					}
538 
#else
11 nishi 539 
					char* data = rv_read_file(repouser, path);
12 nishi 540 
					if(data != NULL) {
541 
						char* esc = html_escape_nl_to_br(data);
542 
						add_data(&page, esc);
543 
						free(esc);
544 
						free(data);
545 
					} else {
546 
						add_data(&page, "Cannot open the file.\n");
547 
					}
13 nishi 548 
#endif
11 nishi 549 
					add_data(&page, "</code></pre>");
550 
				}
15 nishi 551 
				if(user != NULL && strcmp(user, ruser) == 0) {
552 
					char* esc;
553 
					add_data(&nav, "<li><a href=\"#managerepo\">Manage The Repository</a></li>\n");
554 
					add_data(&page, "<h2 id=\"managerepo\">Manage The Repository</h2>\n");
555 
					add_data(&page, "<form action=\"");
556 
					add_data(&page, INSTANCE_ROOT);
557 
					add_data(&page, "/?page=sendmanrepo&username=");
558 
					esc = url_escape(ruser);
559 
					add_data(&page, esc);
560 
					free(esc);
561 
					add_data(&page, "&reponame=");
562 
					esc = url_escape(ruser);
563 
					add_data(&page, esc);
564 
					free(esc);
565 
					add_data(&page, "\" method=\"POST\">\n");
566 
					add_data(&page, "<table border=\"0\" style=\"width: 100%;\">\n");
567 
					add_data(&page, "	<tr>\n");
568 
					add_data(&page, "		<th>README</th>\n");
569 
					add_data(&page, "		<td>\n");
570 
					add_data(&page, "			<textarea name=\"readme\" style=\"width: 100%;resize: none;height: 128px;\">\n");
571 
					char* readme = rv_get_readme(repouser);
572 
					esc = html_escape(readme);
573 
					add_data(&page, esc);
574 
					free(esc);
575 
					free(readme);
576 
					add_data(&page, "			</textarea>\n");
577 
					add_data(&page, "		</td>\n");
578 
					add_data(&page, "	</tr>\n");
579 
					add_data(&page, "</table>\n");
580 
					add_data(&page, "<input type=\"submit\" value=\"Send\">\n");
581 
					add_data(&page, "</form>\n");
582 
					add_data(&page, "<a href=\"");
583 
					add_data(&page, INSTANCE_ROOT);
584 
					add_data(&page, "/?page=deleterepo&username=");
585 
					esc = url_escape(ruser);
586 
					add_data(&page, esc);
587 
					free(esc);
588 
					add_data(&page, "&reponame=");
589 
					esc = url_escape(ruser);
590 
					add_data(&page, esc);
591 
					free(esc);
592 
					add_data(&page, "\">\n");
593 
					add_data(&page, "Delete repository\n");
594 
					add_data(&page, "</a>\n");
595 
				}
11 nishi 596 
			} else {
597 
				add_data(&page, "Repository does not exist.\n");
598 
			}
599 
			free(repouser);
600 
		}
15 nishi 601 
	} else if(strcmp(query, "deleterepo") == 0) {
602 
		title = rv_strdup("Delete The Repository");
603 
		page = rv_strdup("");
604 
 
605 
		rv_load_query('Q');
606 
		if(user == NULL) {
607 
			add_data(&page, "It looks like you are not logged in.<br>Want to <a href=\"");
608 
			add_data(&page, INSTANCE_ROOT);
609 
			add_data(&page, "/?page=login\">log in</a>?\n");
610 
		} else if(rv_get_query("username") == NULL || rv_get_query("reponame") == NULL) {
611 
			add_data(&page, "Invalid Form.\n");
612 
		} else {
613 
			char* esc;
614 
			add_data(&page, "Are you sure you want to delete the repository?\n");
615 
			add_data(&page, "<form method=\"POST\" action=\"");
616 
			add_data(&page, INSTANCE_ROOT);
617 
			add_data(&page, "/?page=senddeleterepo&username=");
618 
			esc = url_escape(rv_get_query("username"));
619 
			add_data(&page, esc);
620 
			free(esc);
621 
			add_data(&page, "&reponame=");
622 
			esc = url_escape(rv_get_query("reponame"));
623 
			add_data(&page, esc);
624 
			free(esc);
625 
			add_data(&page, "\">");
626 
			add_data(&page, "	<input type=\"submit\" value=\"Yes\">\n");
627 
			add_data(&page, "</form>\n");
628 
		}
629 
	} else if(strcmp(query, "senddeleterepo") == 0) {
630 
		title = rv_strdup("Deleting Repository Result");
631 
		page = rv_strdup("");
632 
 
633 
		rv_load_query('Q');
634 
		if(user == NULL) {
635 
			add_data(&page, "It looks like you are not logged in.<br>Want to <a href=\"");
636 
			add_data(&page, INSTANCE_ROOT);
637 
			add_data(&page, "/?page=login\">log in</a>?\n");
638 
		} else if(rv_get_query("username") == NULL || rv_get_query("reponame") == NULL) {
639 
			add_data(&page, "Invalid Form.\n");
640 
		} else if(strcmp(rv_get_query("username"), user) != 0) {
641 
			add_data(&page, "You are not the owner of the repository.\n");
642 
		} else {
643 
			char* repouser = rv_construct_repouser(rv_get_query("reponame"), rv_get_query("username"));
644 
			if(rv_repo_exists(repouser)) {
645 
				rv_remove_repo(repouser);
646 
				add_data(&page, "Deleted the repository successfully.<br>\n");
647 
			} else {
648 
				add_data(&page, "Repository does not exist.<br>\n");
649 
			}
650 
		}
651 
	} else if(strcmp(query, "sendmanrepo") == 0) {
652 
		title = rv_strdup("Modifying Repository Result");
653 
		page = rv_strdup("");
654 
 
655 
		rv_load_query('Q');
656 
		if(user == NULL) {
657 
			add_data(&page, "It looks like you are not logged in.<br>Want to <a href=\"");
658 
			add_data(&page, INSTANCE_ROOT);
659 
			add_data(&page, "/?page=login\">log in</a>?\n");
660 
		} else if(rv_get_query("username") == NULL || rv_get_query("reponame") == NULL) {
661 
			add_data(&page, "Invalid Form.\n");
662 
		} else if(strcmp(rv_get_query("username"), user) != 0) {
663 
			add_data(&page, "You are not the owner of the repository.\n");
664 
		} else {
665 
			char* esc;
666 
			rv_load_query('P');
667 
			char* readme = rv_get_query("readme");
668 
			if(readme != NULL) {
669 
				rv_load_query('Q');
670 
				char* name = rv_construct_repouser(rv_get_query("reponame"), rv_get_query("username"));
671 
				rv_set_readme(name, readme);
672 
				free(name);
673 
			}
674 
			rv_load_query('Q');
675 
			add_data(&page, "Modified the repository successfully.<br>\n");
676 
			add_data(&page, "<a href=\"");
677 
			add_data(&page, INSTANCE_ROOT);
678 
			add_data(&page, "?page=repo&username=");
679 
			esc = url_escape(rv_get_query("username"));
680 
			add_data(&page, esc);
681 
			free(esc);
682 
			add_data(&page, "&reponame=");
683 
			esc = url_escape(rv_get_query("reponame"));
684 
			add_data(&page, esc);
685 
			free(esc);
686 
			add_data(&page, "\">Go back to the repository</a>.\n");
687 
		}
1 nishi 688 
	}
689 
 
690 
	if(title == NULL) title = rv_strdup("");
691 
	if(desc == NULL) desc = rv_strdup("");
692 
	if(page == NULL) page = rv_strdup("");
10 nishi 693 
	if(nav == NULL) nav = rv_strdup("");
1 nishi 694 
	render_stuff();
15 nishi 695 
freeall:
1 nishi 696 
	free(page);
697 
	free(desc);
698 
	free(title);
10 nishi 699 
	free(nav);
1 nishi 700 
}
701 
 
3 nishi 702 
char* escape(const char* str) {
1 nishi 703 
	char* r = malloc(1);
704 
	r[0] = 0;
705 
	char cbuf[2];
706 
	cbuf[1] = 0;
707 
	int i;
3 nishi 708 
	for(i = 0; str[i] != 0; i++) {
709 
		if(str[i] == '<') {
1 nishi 710 
			char* tmp = r;
711 
			r = rv_strcat(tmp, "&lt;");
712 
			free(tmp);
3 nishi 713 
		} else if(str[i] == '>') {
1 nishi 714 
			char* tmp = r;
715 
			r = rv_strcat(tmp, "&gt;");
716 
			free(tmp);
3 nishi 717 
		} else {
1 nishi 718 
			cbuf[0] = str[i];
719 
			char* tmp = r;
720 
			r = rv_strcat(tmp, cbuf);
721 
			free(tmp);
722 
		}
723 
	}
724 
	return r;
725 
}
726 
 
3 nishi 727 
void render_stuff(void) {
1 nishi 728 
	char* escaped;
729 
	add_data(&buffer, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\n");
730 
	add_data(&buffer, "<html>\n");
731 
	add_data(&buffer, "	<head>\n");
732 
	add_data(&buffer, "		<meta http-equiv=\"Content-Type\" content=\"text/html;charset=utf-8\">\n");
733 
	add_data(&buffer, "		<title>");
734 
	add_data(&buffer, INSTANCE_NAME);
735 
	add_data(&buffer, " - ");
736 
	add_data(&buffer, title);
737 
	add_data(&buffer, "</title>\n");
738 
	add_data(&buffer, "		<style type=\"text/css\">\n");
739 
	add_data(&buffer, "* {\n");
740 
	add_data(&buffer, "	padding: 0;\n");
741 
	add_data(&buffer, "	margin: 0;\n");
742 
	add_data(&buffer, "}\n");
743 
	add_data(&buffer, "li {\n");
744 
	add_data(&buffer, "	list-style: outside;\n");
745 
	add_data(&buffer, "	margin-left: 1.25em;\n");
746 
	add_data(&buffer, "}\n");
747 
	add_data(&buffer, "a {\n");
748 
	add_data(&buffer, "	text-decoration: none;\n");
749 
	add_data(&buffer, "}\n");
750 
	add_data(&buffer, "#nav div {\n");
751 
	add_data(&buffer, "	float: left;\n");
752 
	add_data(&buffer, "	margin: 0 0;\n");
753 
	add_data(&buffer, "	padding-left: 0;\n");
9 nishi 754 
	add_data(&buffer, "	padding-right: 25px;\n");
1 nishi 755 
	add_data(&buffer, "	padding-top: 7px;\n");
756 
	add_data(&buffer, "}\n");
11 nishi 757 
	add_data(&buffer, "th,td {\n");
758 
	add_data(&buffer, "	padding: 2px;\n");
759 
	add_data(&buffer, "}\n");
1 nishi 760 
	add_data(&buffer, "body {\n");
761 
	add_data(&buffer, "	background-color: #1F4677;\n");
762 
	add_data(&buffer, "	width: 940px;\n");
763 
	add_data(&buffer, "	margin: 5px auto;\n");
764 
	add_data(&buffer, "	font-family: sans-serif;\n");
765 
	add_data(&buffer, "}\n");
766 
	add_data(&buffer, "#nav {\n");
767 
	add_data(&buffer, "	background-color: white;\n");
6 nishi 768 
	add_data(&buffer, "	background-image: url('");
769 
	add_data(&buffer, INSTANCE_NAVBAR);
770 
	add_data(&buffer, "');\n");
1 nishi 771 
	add_data(&buffer, "	height: 44px;\n");
772 
	add_data(&buffer, "	padding: 8px;\n");
773 
	add_data(&buffer, "	padding-left: 32px;\n");
774 
	add_data(&buffer, "	font-size: 22px;\n");
775 
	add_data(&buffer, "	font-weight: bold;\n");
776 
	add_data(&buffer, "}\n");
11 nishi 777 
	add_data(&buffer, "pre {\n");
778 
	add_data(&buffer, "	background-color: #dddddd;\n");
779 
	add_data(&buffer, "	border: solid 2px #bbbbbb;\n");
12 nishi 780 
	add_data(&buffer, "	padding: 8px;\n");
781 
	add_data(&buffer, "	overflow: scroll;\n");
11 nishi 782 
	add_data(&buffer, "}\n");
1 nishi 783 
	add_data(&buffer, "#index {\n");
784 
	add_data(&buffer, "	list-style: none;\n");
785 
	add_data(&buffer, "	line-height: normal;\n");
786 
	add_data(&buffer, "	margin: auto 0;\n");
787 
	add_data(&buffer, "	padding-left: 0;\n");
788 
	add_data(&buffer, "}\n");
789 
	add_data(&buffer, "#desc {\n");
790 
	add_data(&buffer, "	background-color: #D2E1F6;\n");
791 
	add_data(&buffer, "	margin: 9px auto;\n");
792 
	add_data(&buffer, "	height: 128px;\n");
793 
	add_data(&buffer, "	padding: 24px;\n");
794 
	add_data(&buffer, "}\n");
795 
	add_data(&buffer, "#descinside {\n");
796 
	add_data(&buffer, "	float: left;\n");
11 nishi 797 
	add_data(&buffer, "	width: 700px;\n");
798 
	add_data(&buffer, "	overflow-y: scroll;\n");
799 
	add_data(&buffer, "	max-height: 128px;\n");
1 nishi 800 
	add_data(&buffer, "}\n");
801 
	add_data(&buffer, "#logo {\n");
802 
	add_data(&buffer, "	float: right;\n");
803 
	add_data(&buffer, "}\n");
804 
	add_data(&buffer, "#content {\n");
805 
	add_data(&buffer, "	background-color: #FFFFFF;\n");
806 
	add_data(&buffer, "	margin: -10px auto;\n");
807 
	add_data(&buffer, "	padding: 8px 24px 24px;\n");
808 
	add_data(&buffer, "}\n");
809 
	add_data(&buffer, "#pageindex {\n");
810 
	add_data(&buffer, "	background-color: #FFFFFF;\n");
811 
	add_data(&buffer, "	padding-right: 24px;\n");
812 
	add_data(&buffer, "	padding-bottom: 24px;\n");
813 
	add_data(&buffer, "	float: left;\n");
814 
	add_data(&buffer, "	border-right: 4px #1F4677 solid;\n");
815 
	add_data(&buffer, "	width: 150px;\n");
816 
	add_data(&buffer, "}\n");
817 
	add_data(&buffer, "#pagecontent {\n");
818 
	add_data(&buffer, "	background-color: #FFFFFF;\n");
819 
	add_data(&buffer, "	width: 670px;\n");
820 
	add_data(&buffer, "	float: right;\n");
821 
	add_data(&buffer, "	padding-left: 24px;\n");
822 
	add_data(&buffer, "}\n");
823 
	add_data(&buffer, "#footer {\n");
824 
	add_data(&buffer, "	background-color: #D2E1F6;\n");
825 
	add_data(&buffer, "	padding: 8px 8px 48px;\n");
826 
	add_data(&buffer, "	margin: 8px auto;\n");
827 
	add_data(&buffer, "	font-size: 15px;\n");
828 
	add_data(&buffer, "	height: 32px;\n");
829 
	add_data(&buffer, "}\n");
830 
	add_data(&buffer, ".fixfloat {\n");
831 
	add_data(&buffer, "	clear: both;\n");
832 
	add_data(&buffer, "}\n");
833 
	add_data(&buffer, "#copyright {\n");
834 
	add_data(&buffer, "	float: right;\n");
835 
	add_data(&buffer, "	font-size: 10px;\n");
836 
	add_data(&buffer, "	margin-top: 16px;\n");
837 
	add_data(&buffer, "}\n");
838 
	add_data(&buffer, "#gotop {\n");
839 
	add_data(&buffer, "	position: absolute;\n");
840 
	add_data(&buffer, "}\n");
841 
	add_data(&buffer, "h2, h3 {\n");
842 
	add_data(&buffer, "	padding-top: 8px;\n");
843 
	add_data(&buffer, "	padding-bottom: 8px;\n");
844 
	add_data(&buffer, "}\n");
845 
	add_data(&buffer, "img {\n");
846 
	add_data(&buffer, "	border: none;\n");
847 
	add_data(&buffer, "}\n");
848 
	add_data(&buffer, "		</style>\n");
849 
	add_data(&buffer, "	</head>\n");
850 
	add_data(&buffer, "	<body>\n");
851 
	add_data(&buffer, "		<div id=\"nav\">\n");
852 
	add_data(&buffer, "			<div>\n");
853 
	add_data(&buffer, "				<a href=\"");
854 
	add_data(&buffer, INSTANCE_ROOT);
855 
	add_data(&buffer, "/\">Home</a>\n");
856 
	add_data(&buffer, "			</div>\n");
5 nishi 857 
	if(user == NULL) {
858 
		add_data(&buffer, "			<div>\n");
859 
		add_data(&buffer, "				<a href=\"");
860 
		add_data(&buffer, INSTANCE_ROOT);
861 
		add_data(&buffer, "/?page=login\">Login</a>\n");
862 
		add_data(&buffer, "			</div>\n");
13 nishi 863 
#ifdef ALLOW_SIGNUP
864 
		add_data(&buffer, "			<div>\n");
865 
		add_data(&buffer, "				<a href=\"");
866 
		add_data(&buffer, INSTANCE_ROOT);
867 
		add_data(&buffer, "/?page=signup\">Signup</a>\n");
868 
		add_data(&buffer, "			</div>\n");
869 
#endif
7 nishi 870 
	} else {
871 
		add_data(&buffer, "			<div>\n");
872 
		add_data(&buffer, "				<a href=\"");
873 
		add_data(&buffer, INSTANCE_ROOT);
9 nishi 874 
		add_data(&buffer, "/?page=mypage\">My Page</a>\n");
875 
		add_data(&buffer, "			</div>\n");
876 
 
877 
		add_data(&buffer, "			<div>\n");
878 
		add_data(&buffer, "				<a href=\"");
879 
		add_data(&buffer, INSTANCE_ROOT);
880 
		add_data(&buffer, "/?page=myrepo\">My Repositories</a>\n");
881 
		add_data(&buffer, "			</div>\n");
882 
 
883 
		add_data(&buffer, "			<div>\n");
884 
		add_data(&buffer, "				<a href=\"");
885 
		add_data(&buffer, INSTANCE_ROOT);
7 nishi 886 
		add_data(&buffer, "/?page=logout\">Logout</a>\n");
887 
		add_data(&buffer, "			</div>\n");
5 nishi 888 
	}
6 nishi 889 
	if(user != NULL) {
890 
		add_data(&buffer, "<div style=\"float: right;font-size: 10px;padding-top: 36px;padding-right: 0;font-style: italic;\">You have logged in as <a href=\"");
891 
		add_data(&buffer, INSTANCE_ROOT);
892 
		add_data(&buffer, "/?page=mypage\">");
893 
		add_data(&buffer, user);
894 
		add_data(&buffer, "</a></div>");
895 
	}
1 nishi 896 
	add_data(&buffer, "		</div>\n");
897 
	add_data(&buffer, "		<div id=\"desc\">\n");
898 
	add_data(&buffer, "			<div id=\"descinside\">\n");
899 
	add_data(&buffer, "				<h1>");
900 
	add_data(&buffer, title);
901 
	add_data(&buffer, "</h1>\n");
902 
	add_data(&buffer, "				<p>\n");
903 
	add_data(&buffer, desc);
904 
	add_data(&buffer, "				</p>\n");
905 
	add_data(&buffer, "			</div>\n");
906 
	add_data(&buffer, "			<img id=\"logo\" src=\"");
907 
	add_data(&buffer, INSTANCE_LOGO);
908 
	add_data(&buffer, "\" height=\"128px\" alt=\"logo\">\n");
909 
	add_data(&buffer, "		</div>\n");
910 
	add_data(&buffer, "		<div id=\"content\">\n");
911 
	add_data(&buffer, "			<div id=\"pageindex\">\n");
912 
	add_data(&buffer, "				<h3>Page Menu</h3>\n");
913 
	add_data(&buffer, "				<ul>\n");
10 nishi 914 
	add_data(&buffer, nav);
1 nishi 915 
	add_data(&buffer, "				</ul>\n");
916 
	add_data(&buffer, "			</div>\n");
917 
	add_data(&buffer, "			<div id=\"pagecontent\">\n");
918 
	add_data(&buffer, page);
919 
	add_data(&buffer, "			</div>\n");
11 nishi 920 
	add_data(&buffer, "			<div class=\"fixfloat\"></div>\n");
1 nishi 921 
	add_data(&buffer, "		</div>\n");
922 
	add_data(&buffer, "		<div id=\"footer\">\n");
923 
	add_data(&buffer, "			<div id=\"gotop\">\n");
924 
	add_data(&buffer, "				<a href=\"#top\">Top</a>\n");
925 
	add_data(&buffer, "			</div>\n");
926 
	add_data(&buffer, "			<div id=\"copyright\">\n");
927 
	add_data(&buffer, "				");
928 
	escaped = escape(INSTANCE_ADMIN);
929 
	add_data(&buffer, escaped);
930 
	free(escaped);
931 
	add_data(&buffer, "\n");
932 
	add_data(&buffer, "			</div>\n");
933 
	add_data(&buffer, "			<div class=\"fixfloat\"></div>\n");
15 nishi 934 
#ifdef INSTANCE_BANNERS
935 
	add_data(&buffer, "			<div id=\"banners\" style=\"clear: both;\">\n");
936 
	add_data(&buffer, INSTANCE_BANNERS);
937 
	add_data(&buffer, "			</div>\n");
938 
#else
939 
	add_data(&buffer, "			<div class=\"fixfloat\"></div>\n");
940 
#endif
1 nishi 941 
	add_data(&buffer, "		</div>\n");
942 
	add_data(&buffer, "	</body>\n");
943 
	add_data(&buffer, "</html>\n");
5 nishi 944 
	if(user != NULL) free(user);
1 nishi 945 
}