RSS updates: more flexible output and updated prss code

git-svn-id: https://conky.svn.sourceforge.net/svnroot/conky/trunk/conky1@873 7f574dfc-610e-0410-a909-a81674777703

src/conky.c

@@ -95,7 +95,7 @@ static void print_version()
 #endif /* TCP_PORT_MONITOR */
 #ifdef RSS
 	"  * rss\n"
-#endif
+#endif /* RSS */
 	"\n");	
 
 	exit(0);
@@ -1286,7 +1286,8 @@ struct text_object {
 #ifdef RSS
 		struct {
 			char *uri;
-			int count;
+			char *action;
+			int act_par;
 			int delay;
 		} rss;
 #endif
@@ -2047,6 +2048,7 @@ static void free_text_objects(unsigned int count, struct text_object *objs)
 #ifdef RSS
 			case OBJ_rss:
 				free(objs[i].data.rss.uri);
+				free(objs[i].data.rss.action);
 #endif
 			case OBJ_pre_exec:
 			case OBJ_battery:
@@ -3120,15 +3122,17 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
 #ifdef RSS
 	OBJ(rss, 0) 
 		if (arg) {
-			int argc, count, delay;
-			char *uri = (char *)malloc(64 * sizeof(char *));
+			int argc, delay, act_par;
+			char *uri = (char *)malloc(128 * sizeof(char *));
+			char *action = (char *)malloc(64 * sizeof(char *));
 
-			argc = sscanf(arg, "%63s %d %d", uri, &count, &delay);
+			argc = sscanf(arg, "%127s %d %63s %d", uri, &delay, action, &act_par);
 			obj->data.rss.uri = uri;
-			obj->data.rss.count = count;
 			obj->data.rss.delay = delay;
+			obj->data.rss.action = action;
+			obj->data.rss.act_par = act_par;
 		} else
-			CRIT_ERR("rss: needs arguments (uri, item count, delay in minutes)");
+			CRIT_ERR("rss needs arguments: <uri> <delay in minutes> <action> [act_par]");
 
 	END
 #endif
@@ -4292,23 +4296,32 @@ static void generate_text_internal(char *p, int p_max_size, struct text_object *
 				if(data == NULL)
 					snprintf(p, p_max_size, "prss: Error reading RSS data\n");
 				else {
-					if(data->item_count > 0) {
-						int itmp;
-						char ctmp[64];
-						p[0] = 0;
-						int show;
-						if(obj->data.rss.count > data->item_count)
-							show = data->item_count;
-						else	show = obj->data.rss.count;
-						for(itmp = 0; itmp < show; itmp++) {
-							PRSS_Item *item = &data->items[itmp];
-							if(i>0)
-								strncat(p, "\n", p_max_size);
-							snprintf(ctmp, 64, "%s", item->title);
-							strncat(p, ctmp, p_max_size);
+					if(!strcmp(obj->data.rss.action, "feed_title")) {
+							snprintf(p, p_max_size, "%s", data->title);
+					} else if(!strcmp(obj->data.rss.action, "item_title")) {
+						if(obj->data.rss.act_par < data->item_count) {
+							snprintf(p, p_max_size, "%s", data->items[obj->data.rss.act_par].title);
 						}
-					} else
-						snprintf(p, p_max_size, "prss: Empty feed");
+					} else if(!strcmp(obj->data.rss.action, "item_desc")) {
+						if(obj->data.rss.act_par < data->item_count) {
+							snprintf(p, p_max_size, "%s", data->items[obj->data.rss.act_par].description);
+						}
+					} else if(!strcmp(obj->data.rss.action, "item_titles")) {
+						if(data->item_count > 0) {
+							int itmp;
+							p[0] = 0;
+							int show;
+							if(obj->data.rss.act_par > data->item_count)
+								show = data->item_count;
+							else	show = obj->data.rss.act_par;
+							for(itmp = 0; itmp < show; itmp++) {
+								PRSS_Item *item = &data->items[itmp];
+								if(i>0)
+									strncat(p, "\n", p_max_size);
+								strncat(p, item->title, p_max_size);
+							}
+						}
+					}
 				}
 			}
 #endif

src/prss.c

@@ -26,15 +26,13 @@
 #define PARSE_OPTIONS 0
 #endif
 
-static PRSS* get_data(xmlDocPtr doc);
-
 PRSS* prss_parse_data(const char* xml_data)
 {
 	xmlDocPtr doc = xmlReadMemory(xml_data, strlen(xml_data), "", NULL, PARSE_OPTIONS);
 	if (!doc)
 		return NULL;
 	
-	return get_data(doc);
+	return prss_parse_doc(doc);
 }
 PRSS* prss_parse_file(const char* xml_file)
 {
@@ -42,7 +40,7 @@ PRSS* prss_parse_file(const char* xml_file)
 	if (!doc)
 		return NULL;
 	
-	return get_data(doc);
+	return prss_parse_doc(doc);
 }
 void prss_free(PRSS* data)
 {
@@ -55,13 +53,11 @@ void prss_free(PRSS* data)
 
 static inline void prss_null(PRSS* p)
 {
-	p->title = p->link = p->description = p->language = NULL;
-	p->items = NULL;
-	p->item_count = 0;
+	memset(p, 0, sizeof(PRSS));
 }
 static inline void prss_null_item(PRSS_Item* i)
 {
-	i->title = i->link = i->description = i->category = i->pubdate = NULL;
+	memset(i, 0, sizeof(PRSS_Item));
 }
 
 static inline void read_item(PRSS_Item* res, xmlNodePtr data)
@@ -127,7 +123,9 @@ static inline void read_element(PRSS* res, xmlNodePtr n)
 static inline int parse_rss_2_0(PRSS* res, xmlNodePtr root)
 {
 	xmlNodePtr channel = root->children;
-	while(channel && (channel->type!=XML_ELEMENT_NODE || strcmp((char*)channel->name, "channel")))
+	while(channel
+			&& (channel->type!=XML_ELEMENT_NODE
+			 || strcmp((char*)channel->name, "channel")))
 		channel = channel->next;
 	if (!channel)
 		return 0;
@@ -180,7 +178,7 @@ static inline int parse_rss_0_9x(PRSS* res, xmlNodePtr root)
 	return parse_rss_2_0(res, root);
 }
 
-PRSS* get_data(xmlDocPtr doc)
+PRSS* prss_parse_doc(xmlDocPtr doc)
 {
 	xmlNodePtr root = xmlDocGetRootElement(doc);
 	PRSS* result = malloc(sizeof(PRSS));

src/prss.h

@@ -50,6 +50,7 @@ typedef struct PRSS_ {
 /* Functions for parsing RSS-data */
 PRSS* prss_parse_data(const char *xml_data);
 PRSS* prss_parse_file(const char *xml_file);
+PRSS* prss_parse_doc(xmlDocPtr doc);
 
 /* Frees the PRSS-stucture returned by prss_parse_*.
  * The memory area pointed by data becomes invalid

src/rss.c

@@ -15,6 +15,8 @@
 #include <curl/types.h>
 #include <curl/easy.h>
 
+#include "conky.h"
+
 #define MAX_FEEDS 16
 
 struct MemoryStruct {
@@ -125,7 +127,8 @@ get_rss_info(char *uri, int delay)
 		if(chunk.size) {
 			curdata = prss_parse_data(chunk.memory);
 			free(chunk.memory);
-		}
+		} else
+			ERR("No data from server");
 
 		curfeed->data = curdata;