* (see COPYING for full license text)
*/
-#include "cgit.h"
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+
+/* Percent-encoding of each character, except: a-zA-Z0-9!$()*,./:;@- */
+static const char* url_escape_table[256] = {
+ "%00", "%01", "%02", "%03", "%04", "%05", "%06", "%07", "%08", "%09",
+ "%0a", "%0b", "%0c", "%0d", "%0e", "%0f", "%10", "%11", "%12", "%13",
+ "%14", "%15", "%16", "%17", "%18", "%19", "%1a", "%1b", "%1c", "%1d",
+ "%1e", "%1f", "%20", 0, "%22", "%23", 0, "%25", "%26", "%27", 0, 0, 0,
+ "%2b", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "%3c", "%3d",
+ "%3e", "%3f", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, "%5c", 0, "%5e", 0, "%60", 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "%7b",
+ "%7c", "%7d", 0, "%7f", "%80", "%81", "%82", "%83", "%84", "%85",
+ "%86", "%87", "%88", "%89", "%8a", "%8b", "%8c", "%8d", "%8e", "%8f",
+ "%90", "%91", "%92", "%93", "%94", "%95", "%96", "%97", "%98", "%99",
+ "%9a", "%9b", "%9c", "%9d", "%9e", "%9f", "%a0", "%a1", "%a2", "%a3",
+ "%a4", "%a5", "%a6", "%a7", "%a8", "%a9", "%aa", "%ab", "%ac", "%ad",
+ "%ae", "%af", "%b0", "%b1", "%b2", "%b3", "%b4", "%b5", "%b6", "%b7",
+ "%b8", "%b9", "%ba", "%bb", "%bc", "%bd", "%be", "%bf", "%c0", "%c1",
+ "%c2", "%c3", "%c4", "%c5", "%c6", "%c7", "%c8", "%c9", "%ca", "%cb",
+ "%cc", "%cd", "%ce", "%cf", "%d0", "%d1", "%d2", "%d3", "%d4", "%d5",
+ "%d6", "%d7", "%d8", "%d9", "%da", "%db", "%dc", "%dd", "%de", "%df",
+ "%e0", "%e1", "%e2", "%e3", "%e4", "%e5", "%e6", "%e7", "%e8", "%e9",
+ "%ea", "%eb", "%ec", "%ed", "%ee", "%ef", "%f0", "%f1", "%f2", "%f3",
+ "%f4", "%f5", "%f6", "%f7", "%f8", "%f9", "%fa", "%fb", "%fc", "%fd",
+ "%fe", "%ff"
+};
+
+int htmlfd = STDOUT_FILENO;
char *fmt(const char *format, ...)
{
va_start(args, format);
len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
va_end(args);
- if (len>sizeof(buf[bufidx]))
- die("[html.c] string truncated: %s", format);
+ if (len>sizeof(buf[bufidx])) {
+ fprintf(stderr, "[html.c] string truncated: %s\n", format);
+ exit(1);
+ }
return buf[bufidx];
}
+void html_raw(const char *data, size_t size)
+{
+ write(htmlfd, data, size);
+}
+
void html(const char *txt)
{
write(htmlfd, txt, strlen(txt));
html(buf);
}
-void html_txt(char *txt)
+void html_status(int code, const char *msg, int more_headers)
+{
+ htmlf("Status: %d %s\n", code, msg);
+ if (!more_headers)
+ html("\n");
+}
+
+void html_txt(const char *txt)
{
- char *t = txt;
+ const char *t = txt;
while(t && *t){
int c = *t;
if (c=='<' || c=='>' || c=='&') {
- *t = '\0';
- html(txt);
- *t = c;
+ html_raw(txt, t - txt);
if (c=='>')
html(">");
else if (c=='<')
html(txt);
}
-void html_ntxt(int len, char *txt)
+void html_ntxt(int len, const char *txt)
{
- char *t = txt;
+ const char *t = txt;
while(t && *t && len--){
int c = *t;
if (c=='<' || c=='>' || c=='&') {
- *t = '\0';
- html(txt);
- *t = c;
+ html_raw(txt, t - txt);
if (c=='>')
html(">");
else if (c=='<')
}
t++;
}
- if (t!=txt) {
- char c = *t;
- *t = '\0';
- html(txt);
- *t = c;
- }
+ if (t!=txt)
+ html_raw(txt, t - txt);
if (len<0)
html("...");
}
-void html_attr(char *txt)
+void html_attr(const char *txt)
{
- char *t = txt;
+ const char *t = txt;
while(t && *t){
int c = *t;
- if (c=='<' || c=='>' || c=='\'') {
- *t = '\0';
- html(txt);
- *t = c;
+ if (c=='<' || c=='>' || c=='\'' || c=='\"' || c=='&') {
+ html_raw(txt, t - txt);
if (c=='>')
html(">");
else if (c=='<')
html("<");
else if (c=='\'')
- html(""e;");
+ html("'");
+ else if (c=='"')
+ html(""");
+ else if (c=='&')
+ html("&");
+ txt = t+1;
+ }
+ t++;
+ }
+ if (t!=txt)
+ html(txt);
+}
+
+void html_url_path(const char *txt)
+{
+ const char *t = txt;
+ while(t && *t){
+ int c = *t;
+ const char *e = url_escape_table[c];
+ if (e && c!='+' && c!='&') {
+ html_raw(txt, t - txt);
+ html(e);
+ txt = t+1;
+ }
+ t++;
+ }
+ if (t!=txt)
+ html(txt);
+}
+
+void html_url_arg(const char *txt)
+{
+ const char *t = txt;
+ while(t && *t){
+ int c = *t;
+ const char *e = url_escape_table[c];
+ if (c == ' ')
+ e = "+";
+ if (e) {
+ html_raw(txt, t - txt);
+ html(e);
txt = t+1;
}
t++;
html(txt);
}
-void html_hidden(char *name, char *value)
+void html_hidden(const char *name, const char *value)
{
html("<input type='hidden' name='");
html_attr(name);
html("'/>");
}
-void html_option(char *value, char *text, char *selected_value)
+void html_option(const char *value, const char *text, const char *selected_value)
{
html("<option value='");
html_attr(value);
html("</option>\n");
}
-void html_link_open(char *url, char *title, char *class)
+void html_intoption(int value, const char *text, int selected_value)
+{
+ htmlf("<option value='%d'%s>", value,
+ value == selected_value ? " selected='selected'" : "");
+ html_txt(text);
+ html("</option>");
+}
+
+void html_link_open(const char *url, const char *title, const char *class)
{
html("<a href='");
html_attr(url);
void html_fileperm(unsigned short mode)
{
- htmlf("%c%c%c", (mode & 4 ? 'r' : '-'),
+ htmlf("%c%c%c", (mode & 4 ? 'r' : '-'),
(mode & 2 ? 'w' : '-'), (mode & 1 ? 'x' : '-'));
}
-void html_filemode(unsigned short mode)
-{
- if (S_ISDIR(mode))
- html("d");
- else if (S_ISLNK(mode))
- html("l");
- else if (S_ISGITLINK(mode))
- html("m");
- else
- html("-");
- html_fileperm(mode >> 6);
- html_fileperm(mode >> 3);
- html_fileperm(mode);
-}
-
int html_include(const char *filename)
{
FILE *f;
char buf[4096];
size_t len;
- if (!(f = fopen(filename, "r")))
+ if (!(f = fopen(filename, "r"))) {
+ fprintf(stderr, "[cgit] Failed to include file %s: %s (%d).\n",
+ filename, strerror(errno), errno);
return -1;
+ }
while((len = fread(buf, 1, 4096, f)) > 0)
- write(htmlfd, buf, len);
+ html_raw(buf, len);
fclose(f);
return 0;
}
+
+int hextoint(char c)
+{
+ if (c >= 'a' && c <= 'f')
+ return 10 + c - 'a';
+ else if (c >= 'A' && c <= 'F')
+ return 10 + c - 'A';
+ else if (c >= '0' && c <= '9')
+ return c - '0';
+ else
+ return -1;
+}
+
+char *convert_query_hexchar(char *txt)
+{
+ int d1, d2, n;
+ n = strlen(txt);
+ if (n < 3) {
+ *txt = '\0';
+ return txt-1;
+ }
+ d1 = hextoint(*(txt+1));
+ d2 = hextoint(*(txt+2));
+ if (d1<0 || d2<0) {
+ memmove(txt, txt+3, n-2);
+ return txt-1;
+ } else {
+ *txt = d1 * 16 + d2;
+ memmove(txt+1, txt+3, n-2);
+ return txt;
+ }
+}
+
+int http_parse_querystring(const char *txt_, void (*fn)(const char *name, const char *value))
+{
+ char *o, *t, *txt, *value = NULL, c;
+
+ if (!txt_)
+ return 0;
+
+ o = t = txt = strdup(txt_);
+ if (t == NULL) {
+ printf("Out of memory\n");
+ exit(1);
+ }
+ while((c=*t) != '\0') {
+ if (c=='=') {
+ *t = '\0';
+ value = t+1;
+ } else if (c=='+') {
+ *t = ' ';
+ } else if (c=='%') {
+ t = convert_query_hexchar(t);
+ } else if (c=='&') {
+ *t = '\0';
+ (*fn)(txt, value);
+ txt = t+1;
+ value = NULL;
+ }
+ t++;
+ }
+ if (t!=txt)
+ (*fn)(txt, value);
+ free(o);
+ return 0;
+}
git.ckatri.com / cgit.git / blobdiff