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httpd: ssi: move checking file extensions against g_pcSSIExtensions array into its own function guarded by LWIP_HTTPD_SSI_BY_FILE_EXTENSION
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@ -2087,6 +2087,47 @@ badrequest:
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}
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}
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#if LWIP_HTTPD_SSI && (LWIP_HTTPD_SSI_BY_FILE_EXTENSION == 1)
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/* Check if SSI should be parsed for this file/URL
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* (With LWIP_HTTPD_SSI_BY_FILE_EXTENSION == 2, this function can be
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* overridden by an external implementation.)
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*
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* @return 1 for SSI, 0 for standard files
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*/
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static u8_t
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http_uri_is_ssi(struct fs_file *file, const char *uri)
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{
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size_t loop;
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u8_t tag_check = 0;
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if (file != NULL) {
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/* See if we have been asked for an shtml file and, if so,
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enable tag checking. */
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const char *ext = NULL, *sub;
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char *param = (char *)strstr(uri, "?");
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if (param != NULL) {
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/* separate uri from parameters for now, set back later */
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*param = 0;
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}
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sub = uri;
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ext = uri;
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for (sub = strstr(sub, "."); sub != NULL; sub = strstr(sub, ".")) {
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ext = sub;
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sub++;
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}
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for (loop = 0; loop < NUM_SHTML_EXTENSIONS; loop++) {
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if (!lwip_stricmp(ext, g_pcSSIExtensions[loop])) {
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tag_check = 1;
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break;
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}
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}
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if (param != NULL) {
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*param = '?';
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}
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}
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return tag_check;
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}
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#endif /* LWIP_HTTPD_SSI */
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/** Try to find the file specified by uri and, if found, initialize hs
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* accordingly.
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*
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@ -2193,33 +2234,8 @@ http_find_file(struct http_state *hs, const char *uri, int is_09)
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} else {
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file = http_get_404_file(hs, &uri);
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}
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#if LWIP_HTTPD_SSI
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if (file != NULL) {
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/* See if we have been asked for an shtml file and, if so,
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enable tag checking. */
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const char *ext = NULL, *sub;
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char *param = (char *)strstr(uri, "?");
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if (param != NULL) {
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/* separate uri from parameters for now, set back later */
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*param = 0;
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}
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sub = uri;
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ext = uri;
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for (sub = strstr(sub, "."); sub != NULL; sub = strstr(sub, ".")) {
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ext = sub;
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sub++;
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}
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tag_check = 0;
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for (loop = 0; loop < NUM_SHTML_EXTENSIONS; loop++) {
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if (!lwip_stricmp(ext, g_pcSSIExtensions[loop])) {
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tag_check = 1;
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break;
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}
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}
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if (param != NULL) {
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*param = '?';
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}
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}
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#if LWIP_HTTPD_SSI && LWIP_HTTPD_SSI_BY_FILE_EXTENSION
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tag_check = http_uri_is_ssi(file, uri);
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#endif /* LWIP_HTTPD_SSI */
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}
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if (file == NULL) {
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@ -109,6 +109,18 @@
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#define LWIP_HTTPD_SSI_RAW 0
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#endif
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/** Set this to 0 to prevent parsing the file extension at runtime to decide
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* if a file should be scanned for SSI tags or not.
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* Default is 1 (file extensions are checked using the g_pcSSIExtensions array)
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* Set to 2 to override this runtime test function.
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*
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* This is enabled by default, but if you only use a newer version of makefsdata
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* supporting the "-ssi" option, this info is already present in
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*/
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#if !defined LWIP_HTTPD_SSI_BY_FILE_EXTENSION || defined __DOXYGEN__
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#define LWIP_HTTPD_SSI_BY_FILE_EXTENSION 1
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#endif
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/** Set this to 1 to support HTTP POST */
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#if !defined LWIP_HTTPD_SUPPORT_POST || defined __DOXYGEN__
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#define LWIP_HTTPD_SUPPORT_POST 0
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