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http_server.c: reindent, cleanup, fixed memory leak

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This commit is contained in:
Andrew Karpow 2014-01-08 15:23:14 +01:00
parent 31f1df974c
commit 993be4a474
1 changed files with 27 additions and 34 deletions
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61
src/http_server.c
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@ -32,7 +32,7 @@ static const struct serveable whitelist[] = {
{ "/fonts/glyphicons-halflings-regular.ttf", "application/x-font-ttf"},
{ "/fonts/glyphicons-halflings-regular.eot", "application/vnd.ms-fontobject"},
{ "assets/favicon.ico", "image/vnd.microsoft.icon" },
{ "/assets/favicon.ico", "image/vnd.microsoft.icon" },
/* last one is the default served if no match */
{ "/index.html", "text/html" },
@ -40,34 +40,28 @@ static const struct serveable whitelist[] = {
/* Converts a hex character to its integer value */
char from_hex(char ch) {
return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
}
/* Converts an integer value to its hex character*/
char to_hex(char code) {
static char hex[] = "0123456789abcdef";
return hex[code & 15];
return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
}
/* Returns a url-decoded version of str */
/* IMPORTANT: be sure to free() the returned string after use */
char *url_decode(char *str) {
char *pstr = str, *buf = malloc(strlen(str) + 1), *pbuf = buf;
while (*pstr) {
if (*pstr == '%') {
if (pstr[1] && pstr[2]) {
*pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
pstr += 2;
}
} else if (*pstr == '+') {
*pbuf++ = ' ';
} else {
*pbuf++ = *pstr;
char *pstr = str, *buf = malloc(strlen(str) + 1), *pbuf = buf;
while (*pstr) {
if (*pstr == '%') {
if (pstr[1] && pstr[2]) {
*pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
pstr += 2;
}
} else if (*pstr == '+') {
*pbuf++ = ' ';
} else {
*pbuf++ = *pstr;
}
pstr++;
}
pstr++;
}
*pbuf = '\0';
return buf;
*pbuf = '\0';
return buf;
}
int callback_http(struct libwebsocket_context *context,
@ -75,7 +69,7 @@ int callback_http(struct libwebsocket_context *context,
enum libwebsocket_callback_reasons reason, void *user,
void *in, size_t len)
{
char buf[256], *response_buffer, *p;
char *response_buffer, *p;
size_t n, response_size;
switch (reason) {
@ -89,7 +83,7 @@ int callback_http(struct libwebsocket_context *context,
if(strncmp((const char *)in, "/api/get_browse", 15) == 0)
{
char *url;
if(sscanf(in, "/api/get_browse/%m[^\t\n]", &url) && url)
if(sscanf(in, "/api/get_browse/%m[^\t\n]", &url))
{
char *url_decoded = url_decode(url);
printf("searching for %s", url_decoded);
@ -119,15 +113,15 @@ int callback_http(struct libwebsocket_context *context,
return -1;
}
p += response_size + sprintf(p, "HTTP/1.0 200 OK\x0d\x0a"
"Server: libwebsockets\x0d\x0a"
"Content-Type: application/json\x0d\x0a"
"Content-Length: %6lu\x0d\x0a\x0d\x0a",
response_size
);
"Server: libwebsockets\x0d\x0a"
"Content-Type: application/json\x0d\x0a"
"Content-Length: %6lu\x0d\x0a\x0d\x0a",
response_size
);
response_buffer[98] = '{';
n = libwebsocket_write(wsi, (unsigned char *)response_buffer,
p - response_buffer, LWS_WRITE_HTTP);
p - response_buffer, LWS_WRITE_HTTP);
free(response_buffer);
/*
@ -139,10 +133,9 @@ int callback_http(struct libwebsocket_context *context,
else
{
for (n = 0; n < (sizeof(whitelist) / sizeof(whitelist[0]) - 1); n++)
{
if (in && strcmp((const char *)in, whitelist[n].urlpath) == 0)
break;
}
sprintf(buf, "%s%s", resource_path, whitelist[n].urlpath);
if (libwebsockets_serve_http_file(context, wsi, buf, whitelist[n].mimetype, NULL))