Minor fix.
[bertos.git] / bertos / net / http.c
index e3fc8085790e661dc556e571b068d76142426582..29146d405161d2f379298451a5fb6aeb9995ff52 100644 (file)
 #include <cfg/log.h>
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
+static struct {        const char *key; const char *content; } http_content_type[] =
+{
+       {"",    "Content-type: application/json\r\n\r\n"},
+       {"htm", "Content-type: text/html\r\n\r\n"},
+       {"css", "Content-type: text/css\r\n\r\n"},
+       {"js",  "Content-type: text/javascript\r\n\r\n"},
+       {"png", "Content-type: image/png\r\n\r\n"},
+       {"jpg", "Content-type: image/jpeg\r\n\r\n"},
+       {"gif", "Content-type: image/gif\r\n\r\n"},
+       {"txt", "Content-type: text/plain\r\n\r\n"},
+};
 
-static const char http_html_hdr_200[] = "HTTP/1.1 200 OK\r\nContent-type: text/html\r\n\r\n";
-static const char http_html_hdr_404[] = "HTTP/1.1 404 Not Found\r\nContent-type: text/html\r\n\r\n";
-static const char http_html_hdr_500[] = "HTTP/1.1 500 Internal Server Error\r\nContent-type: text/html\r\n\r\n";
+static const char http_html_hdr_200[] = "HTTP/1.0 200 OK\r\n";
+static const char http_html_hdr_404[] = "HTTP/1.0 404 Not Found\r\n";
+static const char http_html_hdr_500[] = "HTTP/1.0 500 Internal Server Error\r\n";
 
 static HttpCGI *cgi_table;
 static http_handler_t http_callback;
+static char decoded_str[80];
 
 /**
- * Send on \param client socket
- * the 200 Ok http header
+ * Get key value from tokenized buffer
  */
-void http_sendOk(struct netconn *client)
+int http_getValue(char *tolenized_buf, size_t tolenized_buf_len, const char *key, char *value, size_t len)
 {
-       netconn_write(client, http_html_hdr_200, sizeof(http_html_hdr_200) - 1, NETCONN_NOCOPY);
-}
+       if (!tolenized_buf || !key || !value)
+               return -1;
+
+       char *p = tolenized_buf;
+       size_t value_len = 0;
+
+       memset(value, 0, len);
+
+       for (size_t i = 0; i < tolenized_buf_len; i++)
+       {
+               size_t token_len = strlen(p);
+               http_decodeUrl(p, token_len, decoded_str, sizeof(decoded_str));
+
+               if (!strcmp(key, decoded_str))
+               {
+                       /* skip key */
+                       p += token_len + 1;
 
+                       value_len = http_decodeUrl(p, strlen(p), decoded_str, sizeof(decoded_str));
+
+                       if (value_len >= len)
+                               return -1;
+
+                       strcpy(value, decoded_str);
+                       return value_len;
+               }
+               /* jump to next pair */
+               p += token_len + 1;
+       }
+
+       return -1;
+}
 
 /**
- * Send on \param client socket
- * the 404 File not found http header
+ * tokenize a buffer
  */
-void http_sendFileNotFound(struct netconn *client)
+int http_tokenizeGetRequest(char *raw_buf, size_t raw_len)
 {
-       netconn_write(client, http_html_hdr_404, sizeof(http_html_hdr_404) - 1, NETCONN_NOCOPY);
+       size_t token = 0;
+
+    for(size_t i = 0; (i < raw_len) && raw_buf; i++)
+       {
+               if (raw_buf[i] == '&')
+               {
+                       token++;
+                       raw_buf[i] = '\0';
+               }
+
+               if (raw_buf[i] == '=')
+                       raw_buf[i] = '\0';
+    }
+
+    return token + 1;
 }
 
-/**
- * Send on \param client socket
- * the 500 internal server error http header
- */
-void http_sendInternalErr(struct netconn *client)
+static char http_hexToAscii(char first, char second)
 {
-       netconn_write(client, http_html_hdr_500, sizeof(http_html_hdr_500) - 1, NETCONN_NOCOPY);
+       char hex[5], *stop;
+       hex[0] = '0';
+       hex[1] = 'x';
+       hex[2] = first;
+       hex[3] = second;
+       hex[4] = 0;
+       return strtol(hex, &stop, 16);
 }
 
-void http_getPageName(const char *revc_buf, size_t recv_len, char *page_name, size_t len)
+size_t http_decodeUrl(const char *raw_buf, size_t raw_len, char *decodec_buf, size_t len)
 {
-       int i = 0;
-       bool str_ok = false;
+       ASSERT(decodec_buf);
+
+       char value;
+       size_t i;
+       memset(decodec_buf, 0, len);
 
-       if (revc_buf && (recv_len > sizeof("GET /")))
+       for (i = 0; i < raw_len; i++)
        {
-               if (*revc_buf++ == 'G' &&
-                       *revc_buf++ == 'E' && *revc_buf++ == 'T')
+               if (len <= 1)
+                       return i;
+
+               if (raw_buf[i] == '%')
+               {
+                       if (i + 2 < raw_len)
                        {
-                               str_ok = true;
-                               revc_buf += 2;
+                               /* convert hex value after % */
+                               value = http_hexToAscii(raw_buf[i + 1], raw_buf[i + 2]);
+                               if (value)
+                               {
+                                       *decodec_buf++ = value;
+                                       len--;
+                                       /* decoded two digit of hex value, go to next value*/
+                                       i += 2;
+                                       continue;
+                               }
                        }
+               }
+
+               /* Manage special case of '+', that it should be convert in space */
+               *decodec_buf++ = (raw_buf[i] == '+' ? ' ' : raw_buf[i]);
+               len--;
+       }
+
+       return i;
+}
+
+void http_getPageName(const char *recv_buf, size_t recv_len, char *page_name, size_t len)
+{
+       int i = 0;
+       bool str_ok = false;
+       const char *p = recv_buf;
+       if (p && (recv_len > sizeof("GET /")))
+       {
+               if (*p++ == 'G' && *p++ == 'E' && *p++ == 'T')
+               {
+                       str_ok = true;
+                       /* skip the space and "/" */
+                       p += 2;
+               }
        }
 
        if (str_ok)
        {
                while ((size_t)i < recv_len)
                {
-                       char ch = *(revc_buf++);
+                       char ch = *(p++);
                        if (ch == ' ' || ch == '\t' || ch == '\n')
                                break;
                        if((size_t)i == len - 1)
@@ -127,12 +221,76 @@ void http_getPageName(const char *revc_buf, size_t recv_len, char *page_name, si
 INLINE const char *get_ext(const char *name)
 {
        const char *ext = strstr(name, ".");
-       if(ext && (ext + 1))
+       if(ext != NULL && ext[1] != '\0')
                return (ext + 1);
 
        return NULL;
 }
 
+int http_searchContentType(const char *name)
+{
+       if (!name)
+               return 0;
+
+       const char *ext = get_ext(name);
+       LOG_INFO("Ext: %s\n", !ext ? "none" : ext);
+
+       if (!ext)
+               return 0;
+
+       if (!strcmp(ext, "ico"))
+               return HTTP_CONTENT_JPEG;
+
+       for (int i = 0; i < HTTP_CONTENT_CNT; i++)
+       {
+               if (!strcmp(ext, http_content_type[i].key))
+                       return i;
+       }
+
+       return 0;
+}
+
+
+/**
+ * Send on \param client socket the 200 Ok http header with
+ * select \param content_type
+ */
+void http_sendOk(struct netconn *client, int content_type)
+{
+       ASSERT(content_type < HTTP_CONTENT_CNT);
+
+       netconn_write(client, http_html_hdr_200, sizeof(http_html_hdr_200) - 1, NETCONN_NOCOPY);
+       netconn_write(client, http_content_type[content_type].content,
+                       strlen(http_content_type[content_type].content), NETCONN_NOCOPY);
+}
+
+
+/**
+ * Send on \param client socket the 404 File not found http header with
+ * select \param content_type
+ */
+void http_sendFileNotFound(struct netconn *client, int content_type)
+{
+       ASSERT(content_type < HTTP_CONTENT_CNT);
+
+       netconn_write(client, http_html_hdr_404, sizeof(http_html_hdr_404) - 1, NETCONN_NOCOPY);
+       netconn_write(client, http_content_type[content_type].content,
+                       strlen(http_content_type[content_type].content), NETCONN_NOCOPY);
+}
+
+/**
+ * Send on \param client socket the 500 internal server error http header with
+ * select \param content_type
+ */
+void http_sendInternalErr(struct netconn *client, int content_type)
+{
+       ASSERT(content_type < HTTP_CONTENT_CNT);
+
+       netconn_write(client, http_html_hdr_500, sizeof(http_html_hdr_500) - 1, NETCONN_NOCOPY);
+       netconn_write(client, http_content_type[content_type].content,
+                       strlen(http_content_type[content_type].content), NETCONN_NOCOPY);
+}
+
 static http_handler_t cgi_search(const char *name,  HttpCGI *table)
 {
        if (!table)
@@ -140,20 +298,35 @@ static http_handler_t cgi_search(const char *name,  HttpCGI *table)
 
        int i = 0;
        const char *ext = get_ext(name);
-       LOG_INFO("EXT %s\n", ext);
+
        while(table[i].name)
        {
                if (ext && table[i].type == CGI_MATCH_EXT)
                {
-                       LOG_INFO("Match all ext %s\n", ext);
+
                        if (!strcmp(table[i].name, ext))
+                       {
+                               LOG_INFO("Match ext: %s\n", ext);
                                break;
+                       }
                }
-               else /* (table[i].type == CGI_MATCH_NAME) */
+               else if (table[i].type == CGI_MATCH_NAME)
                {
-                       LOG_INFO("Match all name %s\n", name);
+
+                       if (strstr(name, table[i].name) != NULL)
+                       {
+                               LOG_INFO("Match string: %s\n", name);
+                               break;
+                       }
+               }
+               else /* (table[i].type == CGI_MATCH_WORD) */
+               {
+
                        if (!strcmp(table[i].name, name))
+                       {
+                               LOG_INFO("Word match: %s\n", name);
                                break;
+                       }
                }
 
                i++;
@@ -190,7 +363,6 @@ void http_poll(struct netconn *server)
                        memset(req_string, 0, sizeof(req_string));
                        http_getPageName(rx_buf, len, req_string, sizeof(req_string));
 
-                       LOG_INFO("Search %s\n", req_string);
                        if (req_string[0] == '\0')
                                strcpy(req_string, HTTP_DEFAULT_PAGE);
 
@@ -200,7 +372,7 @@ void http_poll(struct netconn *server)
                                if (cgi(client, req_string, rx_buf, len) < 0)
                                {
                                        LOG_ERR("Internal server error\n");
-                                       http_sendInternalErr(client);
+                                       http_sendInternalErr(client, HTTP_CONTENT_HTML);
                                        netconn_write(client, http_server_error, http_server_error_len - 1, NETCONN_NOCOPY);
                                }
                        }