1 files changed, 413 insertions, 0 deletions
diff --git a/data/lighttpd/lighttpd-1.4.53/src/mod_uploadprogress.c b/data/lighttpd/lighttpd-1.4.53/src/mod_uploadprogress.c
new file mode 100644
index 000000000..3dbd61e1b
--- /dev/null
+++ b/data/lighttpd/lighttpd-1.4.53/src/mod_uploadprogress.c
@@ -0,0 +1,413 @@
+#include "first.h"
+
+#include "base.h"
+#include "log.h"
+#include "buffer.h"
+#include "http_header.h"
+
+#include "plugin.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * this is a uploadprogress for a lighttpd plugin
+ *
+ */
+
+typedef struct {
+	buffer     *con_id;
+	connection *con;
+} connection_map_entry;
+
+typedef struct {
+	connection_map_entry **ptr;
+
+	size_t used;
+	size_t size;
+} connection_map;
+
+/* plugin config for all request/connections */
+
+typedef struct {
+	buffer *progress_url;
+} plugin_config;
+
+typedef struct {
+	PLUGIN_DATA;
+
+	connection_map *con_map;
+
+	plugin_config **config_storage;
+
+	plugin_config conf;
+} plugin_data;
+
+/**
+ *
+ * connection maps
+ *
+ */
+
+/* init the plugin data */
+static connection_map *connection_map_init() {
+	connection_map *cm;
+
+	cm = calloc(1, sizeof(*cm));
+
+	return cm;
+}
+
+static void connection_map_free(connection_map *cm) {
+	size_t i;
+	for (i = 0; i < cm->size; i++) {
+		connection_map_entry *cme = cm->ptr[i];
+
+		if (!cme) break;
+
+		if (cme->con_id) {
+			buffer_free(cme->con_id);
+		}
+		free(cme);
+	}
+
+	free(cm);
+}
+
+static int connection_map_insert(connection_map *cm, connection *con, const char *con_id, size_t idlen) {
+	connection_map_entry *cme;
+	size_t i;
+
+	if (cm->size == 0) {
+		cm->size = 16;
+		cm->ptr = malloc(cm->size * sizeof(*(cm->ptr)));
+		for (i = 0; i < cm->size; i++) {
+			cm->ptr[i] = NULL;
+		}
+	} else if (cm->used == cm->size) {
+		cm->size += 16;
+		cm->ptr = realloc(cm->ptr, cm->size * sizeof(*(cm->ptr)));
+		for (i = cm->used; i < cm->size; i++) {
+			cm->ptr[i] = NULL;
+		}
+	}
+
+	if (cm->ptr[cm->used]) {
+		/* is already alloced, just reuse it */
+		cme = cm->ptr[cm->used];
+	} else {
+		cme = malloc(sizeof(*cme));
+		cme->con_id = buffer_init();
+	}
+	buffer_copy_string_len(cme->con_id, con_id, idlen);
+	cme->con = con;
+
+	cm->ptr[cm->used++] = cme;
+
+	return 0;
+}
+
+static connection *connection_map_get_connection(connection_map *cm, const char *con_id, size_t idlen) {
+	size_t i;
+
+	for (i = 0; i < cm->used; i++) {
+		connection_map_entry *cme = cm->ptr[i];
+
+		if (buffer_is_equal_string(cme->con_id, con_id, idlen)) {
+			/* found connection */
+
+			return cme->con;
+		}
+	}
+	return NULL;
+}
+
+static int connection_map_remove_connection(connection_map *cm, connection *con) {
+	size_t i;
+
+	for (i = 0; i < cm->used; i++) {
+		connection_map_entry *cme = cm->ptr[i];
+
+		if (cme->con == con) {
+			/* found connection */
+
+			buffer_clear(cme->con_id);
+			cme->con = NULL;
+
+			cm->used--;
+
+			/* swap positions with the last entry */
+			if (cm->used) {
+				cm->ptr[i] = cm->ptr[cm->used];
+				cm->ptr[cm->used] = cme;
+			}
+
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+/* init the plugin data */
+INIT_FUNC(mod_uploadprogress_init) {
+	plugin_data *p;
+
+	p = calloc(1, sizeof(*p));
+
+	p->con_map = connection_map_init();
+
+	return p;
+}
+
+/* detroy the plugin data */
+FREE_FUNC(mod_uploadprogress_free) {
+	plugin_data *p = p_d;
+
+	UNUSED(srv);
+
+	if (!p) return HANDLER_GO_ON;
+
+	if (p->config_storage) {
+		size_t i;
+		for (i = 0; i < srv->config_context->used; i++) {
+			plugin_config *s = p->config_storage[i];
+
+			if (NULL == s) continue;
+
+			buffer_free(s->progress_url);
+
+			free(s);
+		}
+		free(p->config_storage);
+	}
+
+	connection_map_free(p->con_map);
+
+	free(p);
+
+	return HANDLER_GO_ON;
+}
+
+/* handle plugin config and check values */
+
+SETDEFAULTS_FUNC(mod_uploadprogress_set_defaults) {
+	plugin_data *p = p_d;
+	size_t i = 0;
+
+	config_values_t cv[] = {
+		{ "upload-progress.progress-url", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },       /* 0 */
+		{ NULL,                         NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
+	};
+
+	if (!p) return HANDLER_ERROR;
+
+	p->config_storage = calloc(1, srv->config_context->used * sizeof(plugin_config *));
+
+	for (i = 0; i < srv->config_context->used; i++) {
+		data_config const* config = (data_config const*)srv->config_context->data[i];
+		plugin_config *s;
+
+		s = calloc(1, sizeof(plugin_config));
+		s->progress_url    = buffer_init();
+
+		cv[0].destination = s->progress_url;
+
+		p->config_storage[i] = s;
+
+		if (0 != config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION)) {
+			return HANDLER_ERROR;
+		}
+	}
+
+	return HANDLER_GO_ON;
+}
+
+#define PATCH(x) \
+	p->conf.x = s->x;
+static int mod_uploadprogress_patch_connection(server *srv, connection *con, plugin_data *p) {
+	size_t i, j;
+	plugin_config *s = p->config_storage[0];
+
+	PATCH(progress_url);
+
+	/* skip the first, the global context */
+	for (i = 1; i < srv->config_context->used; i++) {
+		data_config *dc = (data_config *)srv->config_context->data[i];
+		s = p->config_storage[i];
+
+		/* condition didn't match */
+		if (!config_check_cond(srv, con, dc)) continue;
+
+		/* merge config */
+		for (j = 0; j < dc->value->used; j++) {
+			data_unset *du = dc->value->data[j];
+
+			if (buffer_is_equal_string(du->key, CONST_STR_LEN("upload-progress.progress-url"))) {
+				PATCH(progress_url);
+			}
+		}
+	}
+
+	return 0;
+}
+#undef PATCH
+
+/**
+ *
+ * the idea:
+ *
+ * for the first request we check if it is a post-request
+ *
+ * if no, move out, don't care about them
+ *
+ * if yes, take the connection structure and register it locally
+ * in the progress-struct together with an session-id (md5 ... )
+ *
+ * if the connections closes, cleanup the entry in the progress-struct
+ *
+ * a second request can now get the info about the size of the upload,
+ * the received bytes
+ *
+ */
+
+URIHANDLER_FUNC(mod_uploadprogress_uri_handler) {
+	plugin_data *p = p_d;
+	size_t len;
+	char *id;
+	buffer *b;
+	connection *post_con = NULL;
+	int pathinfo = 0;
+
+	if (buffer_string_is_empty(con->uri.path)) return HANDLER_GO_ON;
+	switch(con->request.http_method) {
+	case HTTP_METHOD_GET:
+	case HTTP_METHOD_POST: break;
+	default:               return HANDLER_GO_ON;
+	}
+
+	mod_uploadprogress_patch_connection(srv, con, p);
+	if (buffer_string_is_empty(p->conf.progress_url)) return HANDLER_GO_ON;
+
+	if (con->request.http_method == HTTP_METHOD_GET) {
+		if (!buffer_is_equal(con->uri.path, p->conf.progress_url)) {
+			return HANDLER_GO_ON;
+		}
+	}
+
+	if (NULL != (b = http_header_request_get(con, HTTP_HEADER_OTHER, CONST_STR_LEN("X-Progress-ID")))) {
+		id = b->ptr;
+	} else if (!buffer_string_is_empty(con->uri.query)
+		   && (id = strstr(con->uri.query->ptr, "X-Progress-ID="))) {
+		/* perhaps the POST request is using the query-string to pass the X-Progress-ID */
+		id += sizeof("X-Progress-ID=")-1;
+	} else {
+		/*(path-info is not known at this point in request)*/
+		id = con->uri.path->ptr;
+		len = buffer_string_length(con->uri.path);
+		if (len >= 33 && id[len-33] == '/') {
+			id += len - 32;
+			pathinfo = 1;
+		} else {
+			return HANDLER_GO_ON;
+		}
+	}
+
+	/* the request has to contain a 32byte ID */
+	for (len = 0; light_isxdigit(id[len]); ++len) ;
+	if (len != 32) {
+		if (!pathinfo) { /*(reduce false positive noise in error log)*/
+			log_error_write(srv, __FILE__, __LINE__, "ss",
+					"invalid progress-id; non-xdigit or len != 32:", id);
+		}
+		return HANDLER_GO_ON;
+	}
+
+	/* check if this is a POST request */
+	switch(con->request.http_method) {
+	case HTTP_METHOD_POST:
+
+		connection_map_insert(p->con_map, con, id, len);
+
+		return HANDLER_GO_ON;
+	case HTTP_METHOD_GET:
+		buffer_reset(con->physical.path);
+
+		con->file_started = 1;
+		con->file_finished = 1;
+
+		con->http_status = 200;
+		con->mode = DIRECT;
+
+		/* get the connection */
+		if (NULL == (post_con = connection_map_get_connection(p->con_map, id, len))) {
+			log_error_write(srv, __FILE__, __LINE__, "ss",
+					"ID not known:", id);
+
+			chunkqueue_append_mem(con->write_queue, CONST_STR_LEN("not in progress"));
+
+			return HANDLER_FINISHED;
+		}
+
+		http_header_response_set(con, HTTP_HEADER_CONTENT_TYPE, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("text/xml"));
+
+		/* just an attempt the force the IE/proxies to NOT cache the request ... doesn't help :( */
+		http_header_response_set(con, HTTP_HEADER_OTHER, CONST_STR_LEN("Pragma"), CONST_STR_LEN("no-cache"));
+		http_header_response_set(con, HTTP_HEADER_OTHER, CONST_STR_LEN("Expires"), CONST_STR_LEN("Thu, 19 Nov 1981 08:52:00 GMT"));
+		http_header_response_set(con, HTTP_HEADER_CACHE_CONTROL, CONST_STR_LEN("Cache-Control"), CONST_STR_LEN("no-store, no-cache, must-revalidate, post-check=0, pre-check=0"));
+
+		/* prepare XML */
+		b = srv->tmp_buf;
+		buffer_copy_string_len(b, CONST_STR_LEN(
+			"<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>"
+			"<upload>"
+			"<size>"));
+		buffer_append_int(b, post_con->request.content_length);
+		buffer_append_string_len(b, CONST_STR_LEN(
+			"</size>"
+			"<received>"));
+		buffer_append_int(b, post_con->request_content_queue->bytes_in);
+		buffer_append_string_len(b, CONST_STR_LEN(
+			"</received>"
+			"</upload>"));
+		chunkqueue_append_mem(con->write_queue, CONST_BUF_LEN(b));
+		return HANDLER_FINISHED;
+	default:
+		break;
+	}
+
+	return HANDLER_GO_ON;
+}
+
+REQUESTDONE_FUNC(mod_uploadprogress_request_done) {
+	plugin_data *p = p_d;
+
+	UNUSED(srv);
+
+	if (con->request.http_method != HTTP_METHOD_POST) return HANDLER_GO_ON;
+	if (buffer_string_is_empty(con->uri.path)) return HANDLER_GO_ON;
+
+	if (connection_map_remove_connection(p->con_map, con)) {
+		/* removed */
+	}
+
+	return HANDLER_GO_ON;
+}
+
+/* this function is called at dlopen() time and inits the callbacks */
+
+int mod_uploadprogress_plugin_init(plugin *p);
+int mod_uploadprogress_plugin_init(plugin *p) {
+	p->version     = LIGHTTPD_VERSION_ID;
+	p->name        = buffer_init_string("uploadprogress");
+
+	p->init        = mod_uploadprogress_init;
+	p->handle_uri_clean  = mod_uploadprogress_uri_handler;
+	p->connection_reset  = mod_uploadprogress_request_done;
+	p->set_defaults  = mod_uploadprogress_set_defaults;
+	p->cleanup     = mod_uploadprogress_free;
+
+	p->data        = NULL;
+
+	return 0;
+}