/* html.c: helper functions for html output
*
- * Copyright (C) 2006 Lars Hjemli
+ * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <errno.h>
+#include "cgit.h"
+#include "html.h"
+#include "url.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", "+", 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"
+ "%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", NULL, "%22", "%23", NULL, "%25", "%26", "%27",
+ NULL, NULL, NULL, "%2b", NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, "%3c", "%3d", "%3e", "%3f",
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, "%5c", NULL, "%5e", NULL,
+ "%60", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, "%7b", "%7c", "%7d", NULL, "%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, ...)
{
static char buf[8][1024];
va_start(args, format);
len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
va_end(args);
- if (len>sizeof(buf[bufidx])) {
+ if (len > sizeof(buf[bufidx])) {
fprintf(stderr, "[html.c] string truncated: %s\n", format);
exit(1);
}
return buf[bufidx];
}
+char *fmtalloc(const char *format, ...)
+{
+ struct strbuf sb = STRBUF_INIT;
+ va_list args;
+
+ va_start(args, format);
+ strbuf_vaddf(&sb, format, args);
+ va_end(args);
+
+ return strbuf_detach(&sb, NULL);
+}
+
void html_raw(const char *data, size_t size)
{
- write(htmlfd, data, size);
+ if (write(STDOUT_FILENO, data, size) != size)
+ die_errno("write error on html output");
}
void html(const char *txt)
{
- write(htmlfd, txt, strlen(txt));
+ html_raw(txt, strlen(txt));
}
void htmlf(const char *format, ...)
{
- static char buf[65536];
va_list args;
+ struct strbuf buf = STRBUF_INIT;
va_start(args, format);
- vsnprintf(buf, sizeof(buf), format, args);
+ strbuf_vaddf(&buf, format, args);
va_end(args);
- html(buf);
+ html(buf.buf);
+ strbuf_release(&buf);
}
-void html_status(int code, const char *msg, int more_headers)
+void html_txtf(const char *format, ...)
{
- htmlf("Status: %d %s\n", code, msg);
- if (!more_headers)
- html("\n");
+ va_list args;
+
+ va_start(args, format);
+ html_vtxtf(format, args);
+ va_end(args);
+}
+
+void html_vtxtf(const char *format, va_list ap)
+{
+ va_list cp;
+ struct strbuf buf = STRBUF_INIT;
+
+ va_copy(cp, ap);
+ strbuf_vaddf(&buf, format, cp);
+ va_end(cp);
+ html_txt(buf.buf);
+ strbuf_release(&buf);
}
void html_txt(const char *txt)
{
- const char *t = txt;
- while(t && *t){
- int c = *t;
- if (c=='<' || c=='>' || c=='&') {
- html_raw(txt, t - txt);
- if (c=='>')
- html(">");
- else if (c=='<')
- html("<");
- else if (c=='&')
- html("&");
- txt = t+1;
- }
- t++;
- }
- if (t!=txt)
- html(txt);
+ if (txt)
+ html_ntxt(txt, strlen(txt));
}
-void html_ntxt(int len, const char *txt)
+ssize_t html_ntxt(const char *txt, size_t len)
{
const char *t = txt;
- while(t && *t && len--){
+ ssize_t slen;
+
+ if (len > SSIZE_MAX)
+ return -1;
+
+ slen = (ssize_t) len;
+ while (t && *t && slen--) {
int c = *t;
- if (c=='<' || c=='>' || c=='&') {
+ if (c == '<' || c == '>' || c == '&') {
html_raw(txt, t - txt);
- if (c=='>')
+ if (c == '>')
html(">");
- else if (c=='<')
+ else if (c == '<')
html("<");
- else if (c=='&')
+ else if (c == '&')
html("&");
- txt = t+1;
+ txt = t + 1;
}
t++;
}
- if (t!=txt)
+ if (t != txt)
html_raw(txt, t - txt);
- if (len<0)
- html("...");
+ return slen;
+}
+
+void html_attrf(const char *fmt, ...)
+{
+ va_list ap;
+ struct strbuf sb = STRBUF_INIT;
+
+ va_start(ap, fmt);
+ strbuf_vaddf(&sb, fmt, ap);
+ va_end(ap);
+
+ html_attr(sb.buf);
+ strbuf_release(&sb);
}
void html_attr(const char *txt)
{
const char *t = txt;
- while(t && *t){
+ while (t && *t) {
int c = *t;
- if (c=='<' || c=='>' || c=='\'' || c=='\"') {
+ if (c == '<' || c == '>' || c == '\'' || c == '\"' || c == '&') {
html_raw(txt, t - txt);
- if (c=='>')
+ if (c == '>')
html(">");
- else if (c=='<')
+ else if (c == '<')
html("<");
- else if (c=='\'')
+ else if (c == '\'')
html("'");
- else if (c=='"')
+ else if (c == '"')
html(""");
- txt = t+1;
+ else if (c == '&')
+ html("&");
+ txt = t + 1;
}
t++;
}
- if (t!=txt)
+ if (t != txt)
html(txt);
}
void html_url_path(const char *txt)
{
const char *t = txt;
- while(t && *t){
- int c = *t;
+ while (t && *t) {
+ unsigned char c = *t;
const char *e = url_escape_table[c];
- if (e && c!='+' && c!='&' && c!='+') {
+ if (e && c != '+' && c != '&') {
html_raw(txt, t - txt);
- html_raw(e, 3);
- txt = t+1;
+ html(e);
+ txt = t + 1;
}
t++;
}
- if (t!=txt)
+ if (t != txt)
html(txt);
}
void html_url_arg(const char *txt)
{
const char *t = txt;
- while(t && *t){
- int c = *t;
+ while (t && *t) {
+ unsigned char c = *t;
const char *e = url_escape_table[c];
+ if (c == ' ')
+ e = "+";
if (e) {
html_raw(txt, t - txt);
- html_raw(e, strlen(e));
- txt = t+1;
+ html(e);
+ txt = t + 1;
}
t++;
}
- if (t!=txt)
+ if (t != txt)
html(txt);
}
+void html_header_arg_in_quotes(const char *txt)
+{
+ const char *t = txt;
+ while (t && *t) {
+ unsigned char c = *t;
+ const char *e = NULL;
+ if (c == '\\')
+ e = "\\\\";
+ else if (c == '\r')
+ e = "\\r";
+ else if (c == '\n')
+ e = "\\n";
+ else if (c == '"')
+ e = "\\\"";
+ if (e) {
+ html_raw(txt, t - txt);
+ html(e);
+ txt = t + 1;
+ }
+ t++;
+ }
+ if (t != txt)
+ html(txt);
+
+}
+
void html_hidden(const char *name, const char *value)
{
html("<input type='hidden' name='");
html("</option>\n");
}
+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='");
filename, strerror(errno), errno);
return -1;
}
- while((len = fread(buf, 1, 4096, f)) > 0)
+ while ((len = fread(buf, 1, 4096, f)) > 0)
html_raw(buf, len);
fclose(f);
return 0;
}
-int hextoint(char c)
+void http_parse_querystring(const char *txt, void (*fn)(const char *name, const char *value))
{
- 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-3);
- 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 *t, *txt, *value = NULL, c;
-
- if (!txt_)
- return 0;
+ const char *t = txt;
- 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;
+ while (t && *t) {
+ char *name = url_decode_parameter_name(&t);
+ if (*name) {
+ char *value = url_decode_parameter_value(&t);
+ fn(name, value);
+ free(value);
}
- t++;
+ free(name);
}
- if (t!=txt)
- (*fn)(txt, value);
- return 0;
}
git.ckatri.com / cgit.git / blobdiff