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authorLukas Fleischer <lfleischer@lfos.de>2016-09-29 08:38:45 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2016-10-01 21:19:38 +0200
commit927b0ae30c84fbfce877e35415681dce6eba0229 (patch)
treebe0b56a1b2ecf4bcc767bd927c779c62e38fed2b
parente18a85b6a298feef88da8085ef16fd20ce971071 (diff)
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Simplify http_parse_querystring()
Instead of reimplementing URL parameter parsing from scratch, use url_decode_parameter_name() and url_decode_parameter_value() which are already provided by Git. Also, change the return type of http_parse_querystring() to void since its only caller already ignores the return value. Signed-off-by: Lukas Fleischer <lfleischer@lfos.de>
-rw-r--r--html.c66
-rw-r--r--html.h2
2 files changed, 11 insertions, 57 deletions
diff --git a/html.c b/html.c
index d89df3a..e7e6e07 100644
--- a/html.c
+++ b/html.c
@@ -8,6 +8,7 @@
#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] = {
@@ -337,64 +338,17 @@ int html_include(const char *filename)
return 0;
}
-static 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;
-}
-
-static 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;
- }
-}
+ const char *t = 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 = xstrdup(txt_);
- 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);
- free(o);
- return 0;
}
diff --git a/html.h b/html.h
index c72e845..1b24e55 100644
--- a/html.h
+++ b/html.h
@@ -32,6 +32,6 @@ extern void html_link_close(void);
extern void html_fileperm(unsigned short mode);
extern int html_include(const char *filename);
-extern int http_parse_querystring(const char *txt, void (*fn)(const char *name, const char *value));
+extern void http_parse_querystring(const char *txt, void (*fn)(const char *name, const char *value));
#endif /* HTML_H */