minrss.c: convert TAGIS from macro to inline func

itemStruct's fields are now array elements. Tag parsing is now done
within handlers.c for more modularity.

Makefile

@@ -1,15 +1,20 @@
 PREFIX = ~/.local
-VERSION = 0.1
+VERSION = 0.2
 
-# CC = cc
-SRC = minrss.c util.c net.c xml.c
-OBJ =  $(SRC:.c=.o)
 PKG_CONFIG = pkg-config
+
+# Comment out if JSON output support isn't needed
+JSONLIBS = `$(PKG_CONFIG) --libs json-c`
+JSONINCS = `$(PKG_CONFIG) --cflags json-c`
+JSONFLAG = -DJSON
+
 CURL_CONFIG = curl-config
-INCS = `$(PKG_CONFIG) --cflags libxml-2.0` `$(CURL_CONFIG) --cflags`
-LIBS = `$(PKG_CONFIG) --libs libxml-2.0` `$(CURL_CONFIG) --libs`
+SRC = minrss.c util.c net.c handlers.c
+OBJ =  $(SRC:.c=.o)
+INCS = `$(PKG_CONFIG) --cflags libxml-2.0` `$(CURL_CONFIG) --cflags` $(JSONINC)
+LIBS = `$(PKG_CONFIG) --libs libxml-2.0` `$(CURL_CONFIG) --libs` $(JSONLIBS)
 WARN = -Wall -Wpedantic -Wextra
-CFLAGS = $(INCS) $(LIBS) $(WARN) -DVERSION=\"$(VERSION)\"
+CFLAGS = $(INCS) $(LIBS) $(WARN) -DVERSION=\"$(VERSION)\" $(JSONFLAG)
 
 all: config.h minrss
 

README

@@ -1,8 +1,10 @@
 MinRSS
 ======
-MinRSS is an RSS/Atom feed reader for Linux inspired by suckless.org's
-IRC clients ii and sic. Instead of presenting articles as entries
-in a menu, it saves them as files in folders.
+MinRSS is an RSS/Atom feed reader for Linux inspired by suckless.org's IRC
+clients ii and sic. Instead of presenting articles as entries in a menu, it
+saves them as files in folders.
+
+These files can either be formatted as HTML, or as JSON to help with scripting.
 
 rss
 |--news
@@ -16,6 +18,9 @@ Requirements
 ------------
 You need libcurl and libxml2 to compile MinRSS.
 
+json-c is required for JSON output. To disable this feature, comment out the
+relevant lines in Makefile.
+
 Installation
 ------------
 Run this command to build MinRSS:

config.def.h

@@ -21,7 +21,6 @@ typedef struct {
 		.url = "https://example.com/rss/feed.rss",
 		// This will be used as the folder name for the feed.
 		.feedName = "examplefeed",
-		.tags = "test example sample"
 	},
 */
 
@@ -50,5 +49,12 @@ static const int maxRedirs = 10;
 // For more information: https://curl.se/libcurl/c/CURLOPT_PROTOCOLS.html
 static const int curlProtocols = CURLPROTO_HTTPS | CURLPROTO_HTTP;
 
-// File extension used for each article.
-static const char fileExt[] = ".html";
+enum outputFormats {
+	OUTPUT_HTML,
+#ifdef JSON
+	OUTPUT_JSON,
+#endif // JSON
+};
+
+// When saving, sets the format of the saved file.
+static const enum outputFormats outputFormat = OUTPUT_HTML;

handlers.c

@@ -0,0 +1,239 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include <libxml/xmlreader.h>
+#ifdef JSON
+#include <json-c/json.h>
+#endif // JSON
+
+#include "config.h"
+#include "util.h"
+#include "handlers.h"
+
+void
+freeItem(itemStruct *item)
+{
+	for (int i = 0; i < FIELD_END; i++) {
+		if (item->fields[i])
+			free(item->fields[i]);
+	}
+	free(item);
+}
+
+static inline int
+propIs(xmlChar *prop, char *name)
+{
+	return !xmlStrcmp(prop, (const xmlChar *) name);
+}
+
+static void
+allocField(char **field, char *str)
+{
+	size_t len = strlen(str) + 1;
+	char *fieldStr = ecalloc(len, sizeof(char));
+	memcpy(fieldStr, str, len * sizeof(char));
+	*field = fieldStr;
+}
+
+void
+copyField(itemStruct *item, enum fields field, char *str)
+{
+	allocField(&item->fields[field], str);
+}
+
+int
+atomLink(itemStruct *item, xmlNodePtr node)
+{
+	xmlChar *href = xmlGetProp(node, (xmlChar *) "href");
+	xmlChar *rel = xmlGetProp(node, (xmlChar *) "rel");
+
+	if (!href) {
+		logMsg(1, "Invalid link tag.\n");
+		if (rel)
+			xmlFree(rel);
+		return 1;
+	}
+
+	if (!rel || propIs(rel, "alternate")) {
+		copyField(item, FIELD_LINK, (char *)href);
+	} else if (propIs(rel, "enclosure")) {
+		copyField(item, FIELD_ENCLOSURE_URL, (char *)href);
+	}
+
+	xmlFree(href);
+	xmlFree(rel);
+	
+	return 0;
+}
+
+int
+rssEnclosure(itemStruct *item, xmlNodePtr node)
+{
+	xmlChar *href = xmlGetProp(node, (xmlChar *) "url");
+	if (!href) {
+		logMsg(1, "Invalid enclosure URL.\n");
+		return 1;
+	}
+
+	copyField(item, FIELD_ENCLOSURE_URL, (char *)href);
+
+	xmlFree(href);
+	
+	return 0;
+}
+
+FILE *
+openFile(const char *folder, char *fileName, char *fileExt)
+{
+	// [folder]/[fileName][fileExt]
+	// caller's responsibility to sanitize names, but frees fileName
+	
+	if (!folder) {
+		logMsg(1, "NULL folder");
+		return NULL;
+	} else if (!fileName) {
+		logMsg(1, "NULL file base name");
+		return NULL;
+	} else if (!fileExt) {
+		logMsg(1, "NULL file extension");
+		return NULL;
+	}
+
+	size_t folderLen = strlen(folder);
+	size_t extLen = strlen(fileExt);
+	size_t fileNameLen = strlen(fileName);
+
+	// +1 for null terminator and +1 for path separator
+	size_t pathLen = folderLen + 1 + fileNameLen + extLen + 1;
+
+	char *filePath;
+
+	if (fileName[0])
+		filePath = ecalloc(pathLen, sizeof(char));
+	else {
+		logMsg(1, "Invalid filename.\n");
+		return NULL;
+	}
+
+	memcpy(filePath, folder, folderLen * sizeof(char));
+
+	filePath[folderLen] = fsep();
+	filePath[pathLen - 1] = '\0';
+
+	memcpy(filePath + folderLen + 1, fileName, fileNameLen * sizeof(char));
+	memcpy(filePath + pathLen - extLen - 1, fileExt, extLen * sizeof(char));
+
+	FILE *itemFile = fopen(filePath, "a");
+	free (filePath);
+	free (fileName);
+
+	return itemFile;
+}
+
+static void
+outputHtml(itemStruct *item, FILE *f)
+{
+	if (item->fields[FIELD_TITLE])
+		fprintf(f, "<h1>%s</h1><br>\n", item->fields[FIELD_TITLE]);
+	if (item->fields[FIELD_LINK])
+		fprintf(f, "<a href=\"%s\">Link</a><br>\n", item->fields[FIELD_LINK]);
+	if (item->fields[FIELD_ENCLOSURE_URL])
+		fprintf(f, "<a href=\"%s\">Enclosure</a><br>\n", item->fields[FIELD_ENCLOSURE_URL]);
+	if (item->fields[FIELD_DESCRIPTION])
+		fprintf(f, "%s", item->fields[FIELD_DESCRIPTION]);
+}
+
+#ifdef JSON
+static void
+outputJson(itemStruct *item, FILE *f)
+{
+	json_object *root = json_object_new_object();
+
+	if (item->fields[FIELD_TITLE])
+		json_object_object_add(root, "title",
+				json_object_new_string(item->fields[FIELD_TITLE]));
+
+	if (item->fields[FIELD_LINK])
+		json_object_object_add(root, "link",
+				json_object_new_string(item->fields[FIELD_LINK]));
+
+	if (item->fields[FIELD_ENCLOSURE_URL]) {
+		json_object *enclosure = json_object_new_object();
+		json_object_object_add(enclosure, "link",
+				json_object_new_string(item->fields[FIELD_ENCLOSURE_URL]));
+		json_object_object_add(root, "enclosure", enclosure);
+	}
+
+	if (item->fields[FIELD_DESCRIPTION])
+		json_object_object_add(root, "description",
+				json_object_new_string(item->fields[FIELD_DESCRIPTION]));
+
+	fprintf(f, "%s", json_object_to_json_string_ext(root, 0));
+	json_object_put(root);
+}
+#endif // JSON
+
+void
+itemAction(itemStruct *item, const char *folder)
+{
+	// Receives a linked list of articles to process.
+	
+	itemStruct *cur = item;
+	itemStruct *prev;
+
+	unsigned long long int newItems = 0;
+
+	while (cur) {
+		prev = cur;
+
+		char fileExt[10];
+		void (*outputFunction)(itemStruct *, FILE *);
+
+		switch (outputFormat) {
+			case OUTPUT_HTML:
+				memcpy(fileExt, ".html", 6);
+				outputFunction = &outputHtml;
+				break;
+#ifdef JSON
+			case OUTPUT_JSON:
+				memcpy(fileExt, ".json", 6);
+				outputFunction = &outputJson;
+				break;
+#endif //JSON
+	   		
+			default:
+				logMsg(0, "Output format is invalid.");
+				break;
+		}
+		
+		FILE *itemFile = openFile(folder, san(cur->fields[FIELD_TITLE]), fileExt);
+
+		// Do not overwrite files
+		if (!ftell(itemFile)) {
+			outputFunction(cur, itemFile);
+			newItems++;
+		}
+
+		fclose(itemFile);
+		cur = cur->next;
+		freeItem(prev);
+	}
+
+	if (newItems)
+		logMsg(2, "%s : %d new articles\n", folder, newItems);
+}
+
+void
+finish(char *url, long responseCode)
+{
+	// Executed after a download finishes
+
+	if (responseCode == 200)
+		logMsg(4, "Finished downloading %s\n", url);
+	else if (!responseCode)
+		logMsg(1, "Can not reach %s: ensure the protocol is enabled and the site is accessible.\n", url);
+	else
+		logMsg(1, "HTTP %ld for %s\n", responseCode, url);
+}

handlers.h

@@ -0,0 +1,36 @@
+enum feedFormat {
+	NONE,
+	RSS,
+	ATOM,
+};
+
+enum fields {
+	FIELD_TITLE,
+	FIELD_LINK,
+	FIELD_DESCRIPTION,
+	FIELD_ENCLOSURE_URL,
+
+	FIELD_END
+};
+enum numFields {
+	// currently unimplemented
+	NUM_ENCLOSURE_SIZE,
+
+	NUM_END
+};
+typedef struct itemStruct itemStruct;
+struct itemStruct {
+	char *fields[FIELD_END];
+	int numFields[NUM_END];
+	itemStruct *next;
+};
+
+void copyField(itemStruct *item, enum fields field, char *str);
+
+void freeItem(itemStruct *item);
+void itemAction(itemStruct *item, const char *folder);
+void finish(char *url, long responseCode);
+
+int rssEnclosure(itemStruct *item, xmlNodePtr node);
+
+int atomLink(itemStruct *item, xmlNodePtr node);

minrss.c

@@ -13,90 +13,191 @@ You should have received a copy of the GNU General Public License along with thi
 #include <stdio.h>
 #include <stdarg.h>
 #include <string.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include <libxml/xmlreader.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
 
-#include "config.h"
 #include "util.h"
 #include "net.h"
-#include "xml.h"
+#include "handlers.h"
+#include "config.h"
 
-void
-itemAction(itemStruct *item, const char *folder)
+static inline int
+tagIs(xmlNodePtr node, char *str)
 {
-	// Receives a link list of articles to process.
+	return !xmlStrcmp(node->name, (const xmlChar *) str);
+}
 
-	itemStruct *cur = item;
+static int
+parseXml(xmlDocPtr doc,
+         const char *feedName,
+         void itemAction(itemStruct *, const char *))
+{
+	// Parse the XML in a single document.
 
-	unsigned long long int newItems = 0;
+	if (!feedName || !feedName[0]) {
+		logMsg(1, "Missing feed name, please set one.\n");
+		return 1;
+	}
 
-	size_t folderLen = strlen(folder);
-	size_t extLen = strlen(fileExt);
+	xmlNodePtr rootNode;
 
+	rootNode = xmlDocGetRootElement(doc);
+
+	if (!rootNode) {
+		logMsg(1, "Empty document for feed.\n");
+		return 1;
+	}
+
+	enum feedFormat format = NONE;
+
+	if (tagIs(rootNode, "rss")) {
+		format = RSS;
+	} else if (tagIs(rootNode, "feed")) {
+		if (!xmlStrcmp(rootNode->ns->href, (const xmlChar *) "http://www.w3.org/2005/Atom"))
+			format = ATOM;
+	}
+
+	
+	if (format == NONE) {
+		logMsg(1, "XML document is not an RSS or Atom feed.\n");
+		return 1;
+	}
+
+	// Pointer to the first child of the root XML node
+	xmlNodePtr cur = rootNode->children;
+
+	switch (format) {
+		case RSS:
+			// Get channel XML tag
+			while(cur && !tagIs(cur, "channel"))
+				cur = cur->next;
+
+			if (!cur || !tagIs(cur, "channel")) {
+				logMsg(1, "Invalid RSS syntax.\n");
+				return 1;
+			}
+
+			// Set cur to child of channel
+			cur = cur->children;
+			break;
+
+		case ATOM:
+			// Set cur to child of feed
+			cur = rootNode->children;
+			break;
+
+		default:
+			logMsg(1, "Missing starting tag for format\n");
+			return 1;
+	}
+
+	// Previous item (to build a linked list later)
+	itemStruct *prev = NULL;
+
+	// Loop over articles (skipping non-article tags)
 	while (cur) {
-		char *filePath;
-		char *fileName = san(cur->title, 1);
-		size_t fileNameLen = strlen(fileName);
 
-		itemStruct *prev = cur;
+		short isArticle = 0;
 
+		switch (format) {
+			case RSS:
+				isArticle = tagIs(cur, "item");
+				break;
+			case ATOM:
+				isArticle = tagIs(cur, "entry");
+				break;
+			default:
+				logMsg(1, "Missing article tag name for format\n");
+				return 1;
+		}
 
-		// +1 for null terminator and +1 for path separator
-		size_t pathLen = folderLen + fileNameLen + extLen + 2;
+		if (isArticle) {
+			itemStruct *item = ecalloc(1, sizeof(itemStruct));
 
-		if (fileName[0])
-			filePath = ecalloc(pathLen, sizeof(char));
-		else {
-			logMsg(1, "Invalid article title.\n");
+			// Build a linked list of item structs to pass to itemAction()
+			item->next = prev;
+			prev = item;
+
+			xmlNodePtr itemNode = cur->children;
+
+			// Value within the tag
+			char *itemKey;
+
+			while (itemNode) {
+				itemKey = (char *)xmlNodeListGetString(doc, itemNode->children, 1);
+
+				switch (format) {
+					case RSS:
+						if (tagIs(itemNode, "link"))
+							copyField(item, FIELD_LINK, itemKey);
+						else if (tagIs(itemNode, "description"))
+							copyField(item, FIELD_DESCRIPTION, itemKey);
+						else if (tagIs(itemNode, "title"))
+							copyField(item, FIELD_TITLE, itemKey);
+						else if (tagIs(itemNode, "enclosure"))
+							rssEnclosure(item, itemNode);
+						break;
+					case ATOM:
+						if (tagIs(itemNode, "link"))
+							atomLink(item, itemNode);
+						else if (tagIs(itemNode, "content"))
+							copyField(item, FIELD_DESCRIPTION, itemKey);
+						else if (tagIs(itemNode, "title"))
+							copyField(item, FIELD_TITLE, itemKey);
+						break;
+					default:
+						break;
+				}
+
+				xmlFree(itemKey);
+				
+				itemNode = itemNode->next;
+			}
+		}
 
 		cur = cur->next;
-			freeItem(prev);
-
-			continue;
 	}
 
-		memcpy(filePath, folder, folderLen * sizeof(char));
+	errno = 0;
+	int stat = mkdir((const char* ) feedName, S_IRWXU);
 
-		filePath[folderLen] = fsep();
-		filePath[pathLen - 1] = '\0';
-
-		memcpy(filePath + folderLen + 1, fileName, fileNameLen * sizeof(char));
-		memcpy(filePath + pathLen - extLen - 1, fileExt, extLen * sizeof(char));
-
-		FILE *itemFile = fopen(filePath, "a");
-
-		free(filePath);
-		free(fileName);
-
-
-		// Do not overwrite files
-		if (!ftell(itemFile)) {
-			newItems++;
-
-			fprintf(itemFile, "<h1>%s</h1><br>\n", cur->title);
-			fprintf(itemFile, "<a href=\"%s\">Link</a><br>\n", san(cur->link, 0));
-			fprintf(itemFile, "%s", san(cur->description, 0));
+	if (!stat && errno && errno != EEXIST) {
+		logMsg(1, "Error creating directory for feed.\n");
+		return 1;
 	}
 
-		fclose(itemFile);
+	itemAction(prev, feedName);
 
-		cur = cur->next;
-		freeItem(prev);
+	return 0;
 }
 
-	if (newItems)
-		logMsg(2, "%s : %d new articles\n", folder, newItems);
-}
-
-void
-finish(char *url, long responseCode)
+int
+readDoc(char *content,
+        const char *feedName,
+        void itemAction(itemStruct *, const char *))
 {
-	// Executed after a download finishes
+	// Initialize the XML document, read it, then free it
 
-	if (responseCode == 200)
-		logMsg(4, "Finished downloading %s\n", url);
-	else if (!responseCode)
-		logMsg(1, "Can not reach %s: ensure the protocol is enabled and the site is accessible.\n", url);
-	else
-		logMsg(1, "HTTP %ld for %s\n", responseCode, url);
+	xmlDocPtr doc;
+
+	doc = xmlReadMemory(content, strlen(content), "noname.xml", NULL, 0);
+	if (!doc) {
+		logMsg(1, "XML parser error.\n");
+		return 1;
+	}
+
+	int stat = parseXml(doc, feedName, itemAction);
+
+	if (stat)
+		logMsg(1, "Skipped feed %s due to errors.\n", feedName);
+
+	xmlFreeDoc(doc);
+
+	return stat;
 }
 
 int

util.c

@@ -61,12 +61,10 @@ erealloc(void *p, size_t size)
 }
 
 char *
-san(char *str, int rep)
+san(char *str)
 {
 	if (!str)
 		return "";
-	if (!rep)
-		return str;
 
 	unsigned long long int len = strlen(str);
 	unsigned long long int offset = 0;

util.h

@@ -14,5 +14,5 @@ You should have received a copy of the GNU General Public License along with thi
 void logMsg(int argc, char *msg, ...);
 void *ecalloc(size_t nmemb, size_t size);
 void *erealloc(void *p, size_t nmemb);
-char *san(char *str, int rep);
+char *san(char *str);
 char fsep();

xml.c

@@ -1,258 +0,0 @@
-/*
-
-This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.
-
-© 2021 dogeystamp <dogeystamp@disroot.org>
-*/
-
-#include <libxml/parser.h>
-#include <libxml/tree.h>
-#include <libxml/xmlreader.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <string.h>
-
-#include "util.h"
-#include "xml.h"
-
-#define TAGIS(X, Y) (!xmlStrcmp(X->name, (const xmlChar *) Y))
-
-void
-freeItem(itemStruct *item)
-{
-	// Free the memory used by an article.
-
-	char **mems[] = {
-		&item->title,
-		&item->link,
-		&item->description,
-	};
-
-	for (unsigned long int i = 0; i < LEN(mems); i++) {
-		if (*mems[i])
-			free(*mems[i]);
-	}
-
-	free(item);
-}
-
-static int
-parseXml(xmlDocPtr doc,
-         const char *feedName,
-         void itemAction(itemStruct *, const char *))
-{
-	// Parse the XML in a single document.
-
-	if (!feedName || !feedName[0]) {
-		logMsg(1, "Missing feed name, please set one.\n");
-		return 1;
-	}
-
-	xmlNodePtr rootNode;
-
-	rootNode = xmlDocGetRootElement(doc);
-
-	if (!rootNode) {
-		logMsg(1, "Empty document for feed.\n");
-		return 1;
-	}
-
-	enum feedFormat format = none;
-
-	if (TAGIS(rootNode, "rss")) {
-		format = rss;
-	} else if (TAGIS(rootNode, "feed")) {
-		if (!xmlStrcmp(rootNode->ns->href, (const xmlChar *) "http://www.w3.org/2005/Atom"))
-			format = atom;
-	}
-
-	
-	if (format == none) {
-		logMsg(1, "XML document is not an RSS or Atom feed.\n");
-		return 1;
-	}
-
-	// Pointer to the first child of the root XML node
-	xmlNodePtr cur = rootNode->children;
-
-	switch (format) {
-		case rss:
-			// Get channel XML tag
-			while(cur && !TAGIS(cur, "channel"))
-				cur = cur->next;
-
-			if (!cur || !TAGIS(cur, "channel")) {
-				logMsg(1, "Invalid RSS syntax.\n");
-				return 1;
-			}
-
-			// Set cur to child of channel
-			cur = cur->children;
-			break;
-
-		case atom:
-			// Set cur to child of feed
-			cur = rootNode->children;
-			break;
-
-		default:
-			logMsg(1, "Missing starting tag for format\n");
-			return 1;
-	}
-
-	// Previous item (to build a linked list later)
-	itemStruct *prev = NULL;
-
-	// Loop over articles (skipping non-article tags)
-	while (cur) {
-
-		short isArticle = 0;
-
-		switch (format) {
-			case rss:
-				isArticle = TAGIS(cur, "item");
-				break;
-			case atom:
-				isArticle = TAGIS(cur, "entry");
-				break;
-			default:
-				logMsg(1, "Missing article tag name for format\n");
-				return 1;
-		}
-
-		if (isArticle) {
-			itemStruct *item = ecalloc(1, sizeof(itemStruct));
-
-			// The selected set of attribute keys
-			char **attKeys;
-
-			// Struct variables to map attributes to
-			char **atts[] = {
-				&item->title,
-				&item->link,
-				&item->description,
-			};
-
-			// Attribute keys for each format
-			
-			char *attKeysRss[LEN(atts)] = {
-				"title",
-				"link",
-				"description",
-			};
-
-			char *attKeysAtom[LEN(atts)] = {
-				"title",
-				// link has special treatment because its value is in href not within the tag
-				"",
-				"content",
-			};
-
-			switch (format) {
-				case rss:
-					attKeys = attKeysRss;
-					break;
-
-				case atom:
-					attKeys = attKeysAtom;
-					break;
-
-				default:
-					logMsg(1, "Missing article attribute keys for format\n");
-					return 1;
-			};
-
-			// Build a linked list of item structs to pass to itemAction()
-			item->next = prev;
-			prev = item;
-
-			xmlNodePtr itemNode = cur->children;
-
-			// Value within the tag
-			char *itemKey;
-
-			while (itemNode) {
-				itemKey = (char *)xmlNodeListGetString(doc, itemNode->children, 1);
-
-				if (itemKey) {
-					for (unsigned long int i = 0; i < LEN(atts); i++) {
-						if (TAGIS(itemNode, attKeys[i])) {
-							size_t keyLen = strlen(itemKey) + 1;
-							*atts[i] = ecalloc(keyLen, sizeof(char));
-							memcpy(*atts[i], itemKey, keyLen * sizeof(char));
-
-							break;
-						}
-					}
-
-					xmlFree(itemKey);
-				}
-				
-				// Exceptions
-				
-				// Atom entry link tag
-				if (format == atom && TAGIS(itemNode, "link")) {
-					xmlChar *link = xmlGetProp(itemNode, (xmlChar *) "href");
-
-					if (!link) {
-						logMsg(1, "Missing Atom entry link\n");
-						xmlFree(link);
-						return 1;
-					}
-
-					size_t linkLen = strlen((char *) link) + 1;
-					item->link = ecalloc(linkLen, sizeof(char));
-					memcpy(item->link, (char *) link, linkLen * sizeof(char));
-
-					xmlFree(link);
-				}
-
-				itemNode = itemNode->next;
-			}
-		}
-
-		cur = cur->next;
-	}
-
-	errno = 0;
-	int stat = mkdir((const char* ) feedName, S_IRWXU);
-
-	if (!stat && errno && errno != EEXIST) {
-		logMsg(1, "Error creating directory for feed.\n");
-		return 1;
-	}
-
-	itemAction(prev, feedName);
-
-	return 0;
-}
-
-int
-readDoc(char *content,
-        const char *feedName,
-        void itemAction(itemStruct *, const char *))
-{
-	// Initialize the XML document, read it, then free it
-
-	xmlDocPtr doc;
-
-	doc = xmlReadMemory(content, strlen(content), "noname.xml", NULL, 0);
-	if (!doc) {
-		logMsg(1, "XML parser error.\n");
-		return 1;
-	}
-
-	int stat = parseXml(doc, feedName, itemAction);
-
-	if (stat)
-		logMsg(1, "Skipped feed %s due to errors.\n", feedName);
-
-	xmlFreeDoc(doc);
-
-	return stat;
-}

xml.h

@@ -1,31 +0,0 @@
-/*
-
-This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.
-
-© 2021 dogeystamp <dogeystamp@disroot.org>
-*/
-
-typedef struct itemStruct itemStruct;
-struct itemStruct {
-	char *title;
-	char *link;
-	char *description;
-	itemStruct *next;
-};
-
-enum feedFormat {
-	none,
-	rss,
-	atom
-};
-
-void freeItem(itemStruct *item);
-
-int readDoc(
-    char *content,
-    const char *feedName,
-    void itemAction(itemStruct *, char const *chanTitle));