WebSVN – Kolibri OS – Diff – /contrib/network/netsurf/netsurf/content/fetchers/curl.c

+ *
  * The CURL handles are cached in the curl_handle_ring. There are at most
  * ::max_cached_fetch_handles in this ring.
  */
+/*
+TODO:
+Have a double linked list containing all the handles on work that needs to be done
+Inside fetch_poll_curl, do work on it.
+Let the overall structure remain intact
-#include "http.c"
+*/
 #include
 #include
+#include
 #include
 #include
 #include
 #include
 #include
 #include
 #include
 #include "utils/config.h"
-//#include
+/* #include  */
 #include "content/fetch.h"
  * poll on, until it has processed a bit of the handle.	 So we need schedules
  * in order to make this work.
  */
 #include
+#include "http_msg.h"
+#include "http.h"
+/**********************************************************************
+ ********This section added for resolving compile errors***************/
+#define CURL_ERROR_SIZE 100
+/*Definitions for CURL EASY Codes*/
+#define CURLE_OK 0
+#define CURLE_PARTIAL_FILE 18
+#define CURLE_WRITE_ERROR 23
+#define CURLE_SSL_CONNECT_ERROR 35
+/*Definitions for CURL MULTI Codes*/
+#define CURLM_OK 0
+#define CURLM_CALL_MULTI_PERFORM -1
+#define CURLM_FAILED 123123
+/* KOSH stands for KolibriOS HTTP :) */
+int FLAG_HTTP11             = 1 << 0;
+int FLAG_GOT_HEADER         = 1 << 1;
+int FLAG_GOT_ALL_DATA       = 1 << 2;
+int FLAG_CONTENT_LENGTH     = 1 << 3;
+int FLAG_CHUNKED            = 1 << 4;
+int FLAG_CONNECTED          = 1 << 5;
+/* ERROR flags go into the upper word */
+int FLAG_INVALID_HEADER     = 1 << 16;
+int FLAG_NO_RAM             = 1 << 17;
+int FLAG_SOCKET_ERROR       = 1 << 18;
+int FLAG_TIMEOUT_ERROR      = 1 << 19;
+int FLAG_TRANSFER_FAILED    = 1 << 20;
+struct KOSHcode {
+  long code;
+};
+struct KOSHMcode {
+  long code;
+};
+struct KOSHMsg {
+  char *msg;
+};
+typedef struct KOSHcode KOSHcode;
+typedef struct KOSHMcode KOSHMcode;
+struct kosh_infotype {
+  int type;
+};
+typedef struct kosh_infotype kosh_infotype;
+ struct curl_slist {
+   char *data;
+   struct curl_slist *next;
+ };
+/**********************************************************************/
 /* uncomment this to use scheduler based calling
 #define FETCHER_CURLL_SCHEDULED 1
+*/
+/** SSL certificate info */
+/* struct cert_info { */
+/* 	X509 *cert;		/\**< Pointer to certificate *\/ */
+/* 	long err;		/\**< OpenSSL error code *\/ */
+/* }; */
+/** Information for a single fetch. */
+struct curl_fetch_info {
+        struct fetch *fetch_handle; /**< The fetch handle we're parented by. */
+        struct http_msg * curl_handle;	/**< cURL handle if being fetched, or 0. */
+	bool had_headers;	/**< Headers have been processed. */
+	bool abort;		/**< Abort requested. */
+	bool stopped;		/**< Download stopped on purpose. */
+	bool only_2xx;		/**< Only HTTP 2xx responses acceptable. */
+	bool downgrade_tls;	/**< Downgrade to TLS <= 1.0 */
+	nsurl *url;		/**< URL of this fetch. */
+	lwc_string *host;	/**< The hostname of this fetch. */
+	struct curl_slist *headers;	/**< List of request headers. */
+	char *location;		/**< Response Location header, or 0. */
+	unsigned long content_length;	/**< Response Content-Length, or 0. */
+	char *cookie_string;	/**< Cookie string for this fetch */
+	char *realm;		/**< HTTP Auth Realm */
+	char *post_urlenc;	/**< Url encoded POST string, or 0. */
+	long http_code; /**< HTTP result code from cURL. */
+	struct curl_httppost *post_multipart;	/**< Multipart post data, or 0. */
+/* #define MAX_CERTS 10 */
+/* 	struct cert_info cert_data[MAX_CERTS];	/\**< HTTPS certificate data *\/ */
-*/
+	unsigned int last_progress_update;	/**< Time of last progress update */
-struct fetch_curl_context {
+};
-	struct fetch_curl_context *r_next, *r_prev;
-	struct fetch *fetchh; /**< Handle for this fetch */
+struct cache_handle {
-	bool aborted; /**< Flag indicating fetch has been aborted */
+	struct http_msg *handle; /**< The cached struct http_msg handle */
+	lwc_string *host;   /**< The host for which this handle is cached */
-	bool locked; /**< Flag indicating entry is already entered */
+	struct cache_handle *r_prev; /**< Previous cached handle in ring. */
+	struct cache_handle *r_next; /**< Next cached handle in ring. */
+};
 struct fetch_info_slist {
-	nsurl *url; /**< The full url the fetch refers to */
+  struct curl_fetch_info *fetch_info;  /* this fetch_info contains the same handle as the struct */
+  struct http_msg *handle;
+  bool fetch_curl_header_called;
+  struct fetch_info_slist *next;
+};
+struct fetch_info_slist *fetch_curl_multi;		/**< Global cURL multi handle. */
+/** Curl handle with default options set; not used for transfers. */
-	char *path; /**< The actual path to be used with open() */
+static struct http_msg *fetch_blank_curl;
+static struct cache_handle *curl_handle_ring = 0; /**< Ring of cached handles */
-	time_t file_etag; /**< Request etag for file (previous st.m_time) */
+static int curl_fetchers_registered = 0;
-};
+static bool curl_with_openssl;
-static struct fetch_curl_context *ring = NULL;
+static char fetch_error_buffer[CURL_ERROR_SIZE]; /**< Error buffer for cURL. */
+static char fetch_proxy_userpwd[100];	/**< Proxy authentication details. */
-static bool fetch_curl_initialise(lwc_string *scheme); //here
+static bool fetch_curl_initialise(lwc_string *scheme);
+static void fetch_curl_finalise(lwc_string *scheme);
+static bool fetch_curl_can_fetch(const nsurl *url);
+static void * fetch_curl_setup(struct fetch *parent_fetch, nsurl *url,
+		 bool only_2xx, bool downgrade_tls, const char *post_urlenc,
+		 const struct fetch_multipart_data *post_multipart,
+		 const char **headers);
-static void fetch_curl_finalise(lwc_string *scheme); //here
+static bool fetch_curl_start(void *vfetch);
+static bool fetch_curl_initiate_fetch(struct curl_fetch_info *fetch,
-static bool fetch_curl_can_fetch(const nsurl *url); //here
+		struct http_msg *handle);
-static void * fetch_curl_setup(struct fetch *parent_fetch, nsurl *url,
+static struct http_msg *fetch_curl_get_handle(lwc_string *host);
+static void fetch_curl_cache_handle(struct http_msg *handle, lwc_string *host);
+static KOSHcode fetch_curl_set_options(struct curl_fetch_info *f);
+/* static KOSHcode fetch_curl_sslctxfun(CURL *curl_handle, void *_sslctx, */
+/* 				     void *p); */
+static void fetch_curl_abort(void *vf);
+static void fetch_curl_stop(struct fetch_info_slist *f);
+static void fetch_curl_free(void *f);
+static void fetch_curl_poll(lwc_string *scheme_ignored);
+static void fetch_curl_done(struct fetch_info_slist *curl_handle);
+static int fetch_curl_progress(void *clientp, double dltotal, double dlnow,
+			       double ultotal, double ulnow);
+static int fetch_curl_ignore_debug(struct http_msg *handle,
+				   kosh_infotype type,
+				   char *data,
+				   size_t size,
+				   void *userptr);
+static size_t fetch_curl_data(void *_f);
+/* static size_t fetch_curl_header(char *data, size_t size, size_t nmemb, */
+/* 				void *_f); */
+void fetch_curl_header(void *_f);
-		 bool only_2xx, bool downgrade_tls, const char *post_urlenc,
+static bool fetch_curl_process_headers(struct curl_fetch_info *f);
+static struct curl_httppost *fetch_curl_post_convert(
+		const struct fetch_multipart_data *control);
+/* static int fetch_curl_verify_callback(int preverify_ok, */
+/* 		X509_STORE_CTX *x509_ctx); */
+/* static int fetch_curl_cert_verify_callback(X509_STORE_CTX *x509_ctx, */
+/* 		void *parm); */
 		 const struct fetch_multipart_data *post_multipart,
-		 const char **headers); //here
+/**************Functions added for replacing curl's provided functionality ************/
-static bool fetch_curl_start(void *vfetch); //here
+struct curl_slist *curl_slist_append(struct curl_slist * list, const char * string );
 void curl_slist_free_all(struct curl_slist *);
-static void fetch_curl_abort(void *vf); //here
+struct fetch_info_slist *curl_multi_remove_handle(struct fetch_info_slist *multi_handle, struct curl_fetch_info *fetch_to_delete);
-static void fetch_curl_free(void *f); //here
+struct http_msg * curl_easy_init(void);
-static void fetch_curl_poll(lwc_string *scheme_ignored); //here
+void curl_easy_cleanup(struct http_msg *handle);
+int curl_multi_add_handle(struct fetch_info_slist **multi_handle, struct curl_fetch_info *new_fetch_info);
+/**
+ * Initialise the fetcher.
+ *
+ * Must be called once before any other function.
+ */
+void fetch_curl_register(void)
+{
+	/* KOSHcode code; */
+	/* curl_version_info_data *data; */
+	int i;
+	lwc_string *scheme;
+	LOG(("curl_version (no CURL XD)"));
+	const struct fetcher_operation_table fetcher_ops = {
+	  .initialise = fetch_curl_initialise,
+	  .acceptable = fetch_curl_can_fetch,
+	  .setup = fetch_curl_setup,
+	  .start = fetch_curl_start,
+	  .abort = fetch_curl_abort,
+	  .free = fetch_curl_free,
+	  .poll = fetch_curl_poll,
+	  .finalise = fetch_curl_finalise
+	};
-/**
+	/* code = curl_global_init(CURL_GLOBAL_ALL); */
+	/* if (code != CURLE_OK) */
+	/* 	die("Failed to initialise the fetch module " */
+	/* 			"(curl_global_init failed)."); */
+	/*TODO : Put the init function for our global queue here */
+	/* What do we need for an init? Just setting the list to NULL should be enough.
+	   We might track the number of nodes in the list, but that's not required since we usean SLL.
+	*/
+	/* fetch_curl_multi = curl_multi_init(); */
+	/* if (!fetch_curl_multi) */
+	/* 	die("Failed to initialise the fetch module " */
+	/* 			"(curl_multi_init failed)."); */
+	/* Create a curl easy handle with the options that are common to all
+	   fetches. */
+	/*HTTP Library initiated using volatime asm code in http.c */
+	DBG("Calling curl_easy_init\n");
+	/* fetch_blank_curl = curl_easy_init();  */
+	/* if (!fetch_blank_curl) */
+	/*   { */
+	/*     DBG("fetch_blank_curl is NULL"); */
+	/*     die("Failed to initialise the fetch module " */
+	/* 	"(curl_easy_init failed)."); */
+	/*   } */
+	/* else */
+	/*   DBG("fetch_blank_curl is usable."); */
+	fetch_blank_curl = NULL;
+	/* TODO: The SETOPT calls set up the parameters for the curl handle.
+	   Since we don't want to use curl, these are of no use, but our native handle
+	   should consider all these fields while being set up for proper functioning
+	*/
+/* #undef SETOPT */
+/* #define SETOPT(option, value) \ */
+/* 	code = curl_easy_setopt(fetch_blank_curl, option, value);	\ */
+/* 	if (code != CURLE_OK)						\ */
+/* 		goto curl_easy_setopt_failed; */
+/* 	if (verbose_log) { */
+/* 	    SETOPT(CURLOPT_VERBOSE, 1); */
+/* 	} else { */
+/* 	    SETOPT(CURLOPT_VERBOSE, 0); */
+/* 	} */
+/* 	SETOPT(CURLOPT_ERRORBUFFER, fetch_error_buffer); */
+/* 	if (nsoption_bool(suppress_curl_debug)) */
+/* 		SETOPT(CURLOPT_DEBUGFUNCTION, fetch_curl_ignore_debug); */
+/* 	SETOPT(CURLOPT_WRITEFUNCTION, fetch_curl_data); */
+/* 	SETOPT(CURLOPT_HEADERFUNCTION, fetch_curl_header); */ /* Calling fetch_curl_header inside fetch_curl_process_headers */
+	/* 	SETOPT(CURLOPT_PROGRESSFUNCTION, fetch_curl_progress); */ /* TODO: Add this with httplib somehow */
+/* 	SETOPT(CURLOPT_NOPROGRESS, 0); */
+/* 	SETOPT(CURLOPT_USERAGENT, user_agent_string()); */
+/* 	SETOPT(CURLOPT_ENCODING, "gzip"); */
+/* 	SETOPT(CURLOPT_LOW_SPEED_LIMIT, 1L); */
+/* 	SETOPT(CURLOPT_LOW_SPEED_TIME, 180L); */
+/* 	SETOPT(CURLOPT_NOSIGNAL, 1L); */
+/* 	SETOPT(CURLOPT_CONNECTTIMEOUT, 30L); */
+/* 	if (nsoption_charp(ca_bundle) &&  */
+/* 	    strcmp(nsoption_charp(ca_bundle), "")) { */
+/* 		LOG(("ca_bundle: '%s'", nsoption_charp(ca_bundle))); */
+/* 		SETOPT(CURLOPT_CAINFO, nsoption_charp(ca_bundle)); */
+/* 	} */
+/* 	if (nsoption_charp(ca_path) && strcmp(nsoption_charp(ca_path), "")) { */
+/* 		LOG(("ca_path: '%s'", nsoption_charp(ca_path))); */
+/* 		SETOPT(CURLOPT_CAPATH, nsoption_charp(ca_path)); */
+/* 	} */
+	/*TODO: Useless for now, no SSL Support*/
+	/* /\* Detect whether the SSL CTX function API works *\/ */
+	/* curl_with_openssl = true; */
+	/* code = curl_easy_setopt(fetch_blank_curl,  */
+	/* 		CURLOPT_SSL_CTX_FUNCTION, NULL); */
+	/* if (code != CURLE_OK) { */
+	/* 	curl_with_openssl = false; */
+	/* } */
- * Initialise the fetcher.
+	/* /\* LOG(("cURL %slinked against openssl", curl_with_openssl ? "" : "not ")); *\/ */
+	/* /\* cURL initialised okay, register the fetchers *\/ */
+	/* data = curl_version_info(CURLVERSION_NOW); */
+	/*TODO: We strictly want to deal with only http as a protocol right now, this stuff can come
+	  handy later, so it shall sit here for a while XD
+	  Removing the for loop for a single http fetcher setup scheme.
+	*/
+	/*	for (i = 0; data->protocols[i]; i++) {
- *
- * Must be called once before any other function.
- */
-void fetch_curl_register(void)
-{
-lwc_string *scheme;
+		if (strcmp(data->protocols[i], "http") == 0) {
-LOG(("curl register\n"));
+			if (lwc_intern_string("http", SLEN("http"),
+					&scheme) != lwc_error_ok) {
-lwc_intern_string("http", SLEN("http"), &scheme);
-	if (!fetch_add_fetcher(scheme,
+				die("Failed to initialise the fetch module "
-				fetch_curl_initialise, //here
-				fetch_curl_can_fetch, //here
-				fetch_curl_setup,
-				fetch_curl_start,
+						"(couldn't intern \"http\").");
-				fetch_curl_abort, //here
+			}
 				fetch_curl_free, //here
-#ifdef FETCHER_CURLL_SCHEDULED
+		} else if (strcmp(data->protocols[i], "https") == 0) {
-				       NULL,
+			if (lwc_intern_string("https", SLEN("https"),
-#else
+					&scheme) != lwc_error_ok) {
-				fetch_curl_poll, //here
+				die("Failed to initialise the fetch module "
-#endif
+						"(couldn't intern \"https\").");
 				fetch_curl_finalise)) {  //here
 			LOG(("Unable to register cURL fetcher for HTTP"));
 		} else {
 			// Ignore non-http(s) protocols
 			continue;
-		lwc_intern_string("https", SLEN("https"), &scheme);
+		}
 		if (!fetch_add_fetcher(scheme,
+		fetch_curl_initialise,
+				fetch_curl_can_fetch,
+				fetch_curl_setup,
+				fetch_curl_start,
+				fetch_curl_abort,
+				sfetch_curl_free,
+#ifdef FETCHER_CURLL_SCHEDULED
+				       NULL,
+#else
+				fetch_curl_poll,
+#endif
+				fetch_curl_finalise)) {
+			LOG(("Unable to register cURL fetcher for %s",
+					data->protocols[i]));
+		}
+	}
+*/
+/* 	if (lwc_intern_string("http", SLEN("http"), */
+/* 			      &scheme) != lwc_error_ok) { */
+/* 	  die("Failed to initialise the fetch module " */
+/* 	      "(couldn't intern \"http\")."); */
+/* 	} */
+/* 	if (!fetch_add_fetcher(scheme, */
+/* 			       fetch_curl_initialise, */
+/* 			       fetch_curl_can_fetch, */
+/* 			       fetch_curl_setup, */
+/* 			       fetch_curl_start, */
+/* 			       fetch_curl_abort, */
-	if (!fetch_add_fetcher(scheme,
+/* 			       fetch_curl_free, */
-				fetch_curl_initialise,
+/* #ifdef FETCHER_CURLL_SCHEDULED */
-				fetch_curl_can_fetch,
+/* 			       NULL, */
-				fetch_curl_setup,
+/* #else */
+/* 			       fetch_curl_poll, */
-				fetch_curl_start,
+/* #endif */
-				fetch_curl_abort,
+/* 			       fetch_curl_finalise)) { */
+/* 	  LOG(("Unable to register cURL fetcher for %s", */
-				fetch_curl_free,
+/* 	       "http")); */
-#ifdef FETCHER_CURLL_SCHEDULED
+/* 	}        */
-				       NULL,
+/* 	DBG("fetch_curl_register returning.");	 */
-#else
+	return;
-				fetch_curl_poll,
-#endif
+ curl_easy_setopt_failed:
-				fetch_curl_finalise)) {
+	die("Failed to initialise the fetch module "
-			LOG(("Unable to register cURL fetcher for HTTPS"));
+			"(curl_easy_setopt failed).");
+}
+/**
+ * Initialise a cURL fetcher.
+ */
+/* Seems to not need any work right now, curl_fetchers_registered variable seems handy*/
+bool fetch_curl_initialise(lwc_string *scheme)
+{
+	LOG(("Initialise cURL fetcher for %s", lwc_string_data(scheme)));
+	curl_fetchers_registered++;
+	return true; /* Always succeeds */
+}
+/**
+ * Finalise a cURL fetcher
+ */
+void fetch_curl_finalise(lwc_string *scheme)
+{
+	struct cache_handle *h;
-		}
+	curl_fetchers_registered--;
+	LOG(("Finalise cURL fetcher %s", lwc_string_data(scheme)));
+	if (curl_fetchers_registered == 0) {
+		/* KOSHMcode codem; */
               	int codem;
-}
+		/* All the fetchers have been finalised. */
 		LOG(("All cURL fetchers finalised, closing down cURL"));
-/**
- * Initialise a cURL fetcher.
+		/* TODO: Add any clean up functions for httplib here. */
- */
+		/* curl_easy_cleanup now contains http_free()  */
-bool fetch_curl_initialise(lwc_string *scheme)
+		/* curl_easy_cleanup(fetch_blank_curl); */
+ *
  * Some private data can be passed as the last parameter to fetch_start, and
  * callbacks will contain this.
  */
-void * fetch_curl_setup (struct fetch *fetchh,
-		 nsurl *url,
-		 bool only_2xx,
-		 bool downgrade_tls,
+void * fetch_curl_setup(struct fetch *parent_fetch, nsurl *url,
-		 const char *post_urlenc,
+		 bool only_2xx, bool downgrade_tls, const char *post_urlenc,
 		 const struct fetch_multipart_data *post_multipart,
-		 const char **headers)
+			const char **headers)
+{
+	struct curl_fetch_info *fetch;
+	struct  curl_slist *slist;
+	int i;
+	fetch = malloc(sizeof (*fetch));
+	if (fetch == NULL)
+	  {
+	    LOG(("Fetch was NULL. Aborting fetch_curl_setup"));
+	    return 0;
+	  }
+	fetch->fetch_handle = parent_fetch;
+	LOG(("fetch %p, url '%s'", fetch, nsurl_access(url)));
+	/* construct a new fetch structure */
+	fetch->curl_handle = NULL;
+	fetch->had_headers = false;
+	fetch->abort = false;
+	fetch->stopped = false;
+	fetch->only_2xx = only_2xx;
-{
+	fetch->downgrade_tls = downgrade_tls;
+	fetch->headers = NULL;
+	fetch->url = nsurl_ref(url);
+	fetch->host = nsurl_get_component(url, NSURL_HOST);
+	fetch->location = NULL;
+	fetch->content_length = 0;
+	fetch->http_code = 0;
+	fetch->cookie_string = NULL;
+	fetch->realm = NULL;
+	fetch->post_urlenc = NULL;
+	fetch->post_multipart = NULL;
+	if (post_urlenc)
+	  {
+	    LOG(("post_urlenc is not NULL : %s.\n", post_urlenc));
+	    fetch->post_urlenc = strdup(post_urlenc);
+	  }
+	else if (post_multipart)
+	  {
+	    LOG(("post_multipart is not NULL : %x.\n", post_multipart));
+	  /*TODO: Need a post converter here, shouldn't be large though*/
+	  fetch->post_multipart = fetch_curl_post_convert(post_multipart);
+	  }
+	/* memset(fetch->cert_data, 0, sizeof(fetch->cert_data)); */
+	fetch->last_progress_update = 0;
+	if (fetch->host == NULL ||
+		(post_multipart != NULL && fetch->post_multipart == NULL) ||
+			(post_urlenc != NULL && fetch->post_urlenc == NULL))
+		goto failed;
+	/* TODO : Write an implementation for curl_slist_append for adding and appending fields to header*/
+	/* This is done for now */
+/* #define APPEND(list, value) \ */
+/* 	slist = curl_slist_append(list, value);		\ */
+/* 	if (slist == NULL)				\ */
+/* 		goto failed;				\ */
+/* 	list = slist; */
+	/*TODO : This section will need some work because we don't use curl headers but use the ones
+	  provided by http.obj which does not necessarily include the same prefed headers
+	*/
+	/* remove curl default headers */
+	/* APPEND(fetch->headers, "Pragma:"); */
+	/* when doing a POST libcurl sends Expect: 100-continue" by default
+	 * which fails with lighttpd, so disable it (see bug 1429054) */
+	/* APPEND(fetch->headers, "Expect:"); */
+	/* if ((nsoption_charp(accept_language) != NULL) &&  */
+	/*     (nsoption_charp(accept_language)[0] != '\0')) { */
+	/* 	char s[80]; */
+	/* 	snprintf(s, sizeof s, "Accept-Language: %s, *;q=0.1", */
+	/* 		 nsoption_charp(accept_language)); */
+	/* 	s[sizeof s - 1] = 0; */
+	/* 	APPEND(fetch->headers, s); */
+/* } */
+/* 	if (nsoption_charp(accept_charset) != NULL &&  */
+/* 	    nsoption_charp(accept_charset)[0] != '\0') { */
+/* 		char s[80]; */
+/* 		snprintf(s, sizeof s, "Accept-Charset: %s, *;q=0.1", */
+/* 			 nsoption_charp(accept_charset)); */
+/* 		s[sizeof s - 1] = 0; */
+/* 		APPEND(fetch->headers, s); */
+/* 	} */
+/* 	if (nsoption_bool(do_not_track) == true) { */
+/* 		APPEND(fetch->headers, "DNT: 1"); */
+/* 	} */
+/* 	/\* And add any headers specified by the caller *\/ */
+/* 	for (i = 0; headers[i] != NULL; i++) { */
+/* 		APPEND(fetch->headers, headers[i]); */
+/* 	} */
+	return fetch;
+failed:
+	if (fetch->host != NULL)
+		lwc_string_unref(fetch->host);
+	nsurl_unref(fetch->url);
+	free(fetch->post_urlenc);
+	/* TOOD: Figure out a way to deal with post data. */
+	/* if (fetch->post_multipart) */
-	LOG(("curl setup\n"));
+	/* 	curl_formfree(fetch->post_multipart); */
+	curl_slist_free_all(fetch->headers);
-	struct fetch_curl_context *ctx;
-	int i;
+	free(fetch);
+	return NULL;
+}
+/**
+ * Dispatch a single job
+ */
+bool fetch_curl_start(void *vfetch)
+{
+	struct curl_fetch_info *fetch = (struct curl_fetch_info*)vfetch;
+	DBG("Inside fetch_curl_start\n");
+	return fetch_curl_initiate_fetch(fetch,
+			fetch_curl_get_handle(fetch->host));
+}
+/**
+ * Initiate a fetch from the queue.
+ *
+ * Called with a fetch structure and a CURL handle to be used to fetch the
+ * content.
+ *
+ * This will return whether or not the fetch was successfully initiated.
+ */
-	ctx = calloc(1, sizeof(*ctx));
+bool fetch_curl_initiate_fetch(struct curl_fetch_info *fetch, struct http_msg *handle)
 	if (ctx == NULL)
-		return NULL;
+	KOSHcode code;
+        KOSHMcode codem;
+	unsigned int wererat; /* Like soUrcerer wanted it :D */
+	char *zz;
+	int pr;
+	/* fetch->curl_handle = handle; */
+	/* Don't need to add options to handle from http obj */
+	/* Initialise the handle */
+	/* DBG("inside fetch_curl_initiate_fetch()...\n"); */
+	/* code = fetch_curl_set_options(fetch);  */
+	/*  if (code.code != CURLE_OK) {  */
+	/*  	fetch->curl_handle = 0;  */
+	/*  	return false;  */
+	/*  }  */
+	/* TODO : Write a curl_multi_add_handle alternative which puts the handle in our global queue
+	   for polling later on multiple transfers together*/
-	//ctx->path = url_to_path(nsurl_access(url));
+	/* add to the global curl multi handle */
+	DBG("inside fetch_curl_initiate_fetch()...\n");
+	nsurl_get(fetch->url, NSURL_WITH_FRAGMENT, &zz, &pr);
+	if (zz == NULL) {
+	  fetch_curl_abort(fetch);
+	  return NULL;
+	}
+	/*TODO : Always clear the flags for the handle here*/
+	if(fetch->post_urlenc)
+	  {
+	    LOG(("http_post on %s with headers: %s", zz, fetch->post_urlenc));
-	char *zz;
+	    wererat = http_post(zz, NULL, "application/x-www-form-urlencoded", strlen(fetch->post_urlenc));
+	    if(wererat == 0)
+	      {
+		LOG(("Error. http_post failed. Aborting fetch.\n"));
+		fetch_curl_abort(fetch);
+		return NULL;
+	      }
+	    else /*Send the post request body*/
+	      {
+		int sent = http_send(wererat, fetch->post_urlenc, strlen(fetch->post_urlenc));
+		LOG(("Sent %d bytes in http_send for %s", sent, fetch->post_urlenc));
+	      }
+	  }
+	else /* GET Request */
+	  {
+	    LOG(("http_get on URL : %s", zz));
-	int pr;
+	    wererat = http_get(zz, NULL); /* Initiates the GET on the handle we want to initiate for */
+	    if(wererat == 0)               /* http_get failed. Something wrong. Can't do anything here  */
+	      {
+		DBG("Error. http_get failed. Aborting fetch.\n");
+		fetch_curl_abort(fetch);
+		return NULL;
+	      }
+	  }
+	/* Probably check for the older curl_handle here and http_free() or http_disconnect accordingly TODO */
+	fetch->curl_handle = (struct http_msg *)wererat;  /* Adding the http_msg handle to fetch->handle */
+	LOG(("wererat is %u with flags = %u", wererat, fetch->curl_handle->flags));
+	codem.code = curl_multi_add_handle(&fetch_curl_multi, fetch);
+	/* Probably drop the assert and handle this properly, but that's for later */
+	assert(codem.code == CURLM_OK || codem.code == CURLM_CALL_MULTI_PERFORM);
+	/* TODO: No idea what this does right now. Shouldn't this be inside an #if macro call? to enable/disable curll scheduling.*/
+	schedule(1, (schedule_callback_fn)fetch_curl_poll, NULL);
+	return true;
+}
+/**
+ * Find a CURL handle to use to dispatch a job
+ */
+struct http_msg *fetch_curl_get_handle(lwc_string *host)
+{
+	struct cache_handle *h;
+	struct http_msg *ret;
+	DBG("inside fetch_curl_get_handle()...\n");
+	RING_FINDBYLWCHOST(curl_handle_ring, h, host);
+	if (h) {
+		ret = h->handle;
+		lwc_string_unref(h->host);
-	nsurl_get(url, NSURL_WITH_FRAGMENT, &zz, &pr);
+		RING_REMOVE(curl_handle_ring, h);
+		free(h);
+	} else {
+	  /* ret = curl_easy_duphandle(fetch_blank_curl); */
+	  /* TODO: Verify if this is equivalent to curl_easy_duphandle call above this */
+	  ret = curl_easy_init();
+	}
+	return ret;
+}
+/**
+ * Cache a CURL handle for the provided host (if wanted)
-	ctx->path = zz;
+ */
+/*TODO : Useful for using a pre existing cached handle for faster lookup*/
+void fetch_curl_cache_handle(struct http_msg *handle, lwc_string *host)
+{
+	struct cache_handle *h = 0;
+	int c;
+	DBG("inside fetch_curl_cache_handle...\n");
+	RING_FINDBYLWCHOST(curl_handle_ring, h, host);
+	if (h) {
+	  /*TODO: Replace curl_easy_cleanup function for something useful for use with KOSH*/
+		/* Already have a handle cached for this hostname */
+		curl_easy_cleanup(handle);
+		return;
+	}
+	/* We do not have a handle cached, first up determine if the cache is full */
+	RING_GETSIZE(struct cache_handle, curl_handle_ring, c);
-	if (ctx->path == NULL) {
+	if (c >= nsoption_int(max_cached_fetch_handles)) {
+		/* Cache is full, so, we rotate the ring by one and
+		 * replace the oldest handle with this one. We do this
+		 * without freeing/allocating memory (except the
+		 * hostname) and without removing the entry from the
+		 * ring and then re-inserting it, in order to be as
+		 * efficient as we can.
+		 */
+		if (curl_handle_ring != NULL) {
-		free(ctx);
+			h = curl_handle_ring;
+			curl_handle_ring = h->r_next;
+			curl_easy_cleanup(h->handle);
+			h->handle = handle;
+			lwc_string_unref(h->host);
+			h->host = lwc_string_ref(host);
+		} else {
-		return NULL;
+			/* Actually, we don't want to cache any handles */
 			curl_easy_cleanup(handle);
+		}
 	ctx->url = nsurl_ref(url);
+		return;
+	}
+	/* The table isn't full yet, so make a shiny new handle to add to the ring */
+	h = (struct cache_handle*)malloc(sizeof(struct cache_handle));
+	h->handle = handle;
+	h->host = lwc_string_ref(host);
+	RING_INSERT(curl_handle_ring, h);
+}
+/**
+ * Set options specific for a fetch.
+ */
+/*TODO: This function sets up a specific fetch. Need a replacement for SETOPT for setting parameters
+  in our implementation
+*/
+KOSHcode
+fetch_curl_set_options(struct curl_fetch_info *f)
+{
+	KOSHcode code;
+	const char *auth;
+	DBG("Inside fetch_curl_set_options\n");
+	/*TODO: Replace SETOPT with sane set up of parameters for our handle*/
+/* #undef SETOPT */
+/* #define SETOPT(option, value) { \ */
+/* 	code = curl_easy_setopt(f->curl_handle, option, value);	\ */
+/* 	if (code != CURLE_OK)					\ */
+/* 		return code;					\ */
+/* 	} */
+/* 	SETOPT(CURLOPT_URL, nsurl_access(f->url)); */
+/* 	SETOPT(CURLOPT_PRIVATE, f); */
+/* 	SETOPT(CURLOPT_WRITEDATA, f); */
+/* 	SETOPT(CURLOPT_WRITEHEADER, f); */
+/* 	SETOPT(CURLOPT_PROGRESSDATA, f); */
+/* 	SETOPT(CURLOPT_REFERER, fetch_get_referer_to_send(f->fetch_handle)); */
+/* 	SETOPT(CURLOPT_HTTPHEADER, f->headers); */
+/* 	if (f->post_urlenc) { */
+/* 		SETOPT(CURLOPT_HTTPPOST, NULL); */
+/* 		SETOPT(CURLOPT_HTTPGET, 0L); */
+/* 		SETOPT(CURLOPT_POSTFIELDS, f->post_urlenc); */
+/* 	} else if (f->post_multipart) { */
+/* 		SETOPT(CURLOPT_POSTFIELDS, NULL); */
+/* 		SETOPT(CURLOPT_HTTPGET, 0L); */
+/* 		SETOPT(CURLOPT_HTTPPOST, f->post_multipart); */
+/* 	} else { */
+/* 		SETOPT(CURLOPT_POSTFIELDS, NULL); */
+/* 		SETOPT(CURLOPT_HTTPPOST, NULL); */
+/* 		SETOPT(CURLOPT_HTTPGET, 1L); */
+/* 	} */
+ 	/* f->cookie_string = urldb_get_cookie(f->url, true);  */
+/* 	if (f->cookie_string) { */
+/* 		SETOPT(CURLOPT_COOKIE, f->cookie_string); */
+/* 	} else { */
+/* 		SETOPT(CURLOPT_COOKIE, NULL); */
+/* 	} */
+/* 	if ((auth = urldb_get_auth_details(f->url, NULL)) != NULL) { */
+/* 		SETOPT(CURLOPT_HTTPAUTH, CURLAUTH_ANY); */
+/* 		SETOPT(CURLOPT_USERPWD, auth); */
+/* 	} else { */
+/* 		SETOPT(CURLOPT_USERPWD, NULL); */
+/* 	} */
+/* 	if (nsoption_bool(http_proxy) &&  */
+/* 	    (nsoption_charp(http_proxy_host) != NULL) && */
+/* 	    (strncmp(nsurl_access(f->url), "file:", 5) != 0)) { */
+/* 		SETOPT(CURLOPT_PROXY, nsoption_charp(http_proxy_host)); */
+/* 		SETOPT(CURLOPT_PROXYPORT, (long) nsoption_int(http_proxy_port)); */
+/* 		if (nsoption_int(http_proxy_auth) != OPTION_HTTP_PROXY_AUTH_NONE) { */
+/* 			SETOPT(CURLOPT_PROXYAUTH, */
+/* 			       nsoption_int(http_proxy_auth) == */
+/* 					OPTION_HTTP_PROXY_AUTH_BASIC ? */
+/* 					(long) CURLAUTH_BASIC : */
+/* 					(long) CURLAUTH_NTLM); */
+/* 			snprintf(fetch_proxy_userpwd, */
+/* 					sizeof fetch_proxy_userpwd, */
+/* 					"%s:%s", */
+/* 				 nsoption_charp(http_proxy_auth_user), */
+/* 				 nsoption_charp(http_proxy_auth_pass)); */
+/* 			SETOPT(CURLOPT_PROXYUSERPWD, fetch_proxy_userpwd); */
+/* 		} */
+/* 	} else { */
+/* 		SETOPT(CURLOPT_PROXY, NULL); */
+/* 	} */
+/* 	/\* Disable SSL session ID caching, as some servers can't cope. *\/ */
+/* 	SETOPT(CURLOPT_SSL_SESSIONID_CACHE, 0); */
+/* 	if (urldb_get_cert_permissions(f->url)) { */
+/* 		/\* Disable certificate verification *\/ */
+/* 		SETOPT(CURLOPT_SSL_VERIFYPEER, 0L); */
+/* 		SETOPT(CURLOPT_SSL_VERIFYHOST, 0L); */
-	ctx->fetchh = fetchh;
+/* 		if (curl_with_openssl) { */
+/* 			SETOPT(CURLOPT_SSL_CTX_FUNCTION, NULL); */
+/* 			SETOPT(CURLOPT_SSL_CTX_DATA, NULL); */
-	RING_INSERT(ring, ctx);
+/* 		} */
+/* 	} else { */
+/* 		/\* do verification *\/ */
+/* 		SETOPT(CURLOPT_SSL_VERIFYPEER, 1L); */
+/* 		SETOPT(CURLOPT_SSL_VERIFYHOST, 2L); */
+/* 		if (curl_with_openssl) { */
+/* 			SETOPT(CURLOPT_SSL_CTX_FUNCTION, fetch_curl_sslctxfun); */
+/* 			SETOPT(CURLOPT_SSL_CTX_DATA, f); */
+/* 		} */
+/* 	} */
+	code.code = CURLE_OK;
+	return code;
+	/* return CURLE_OK; */
+}
+/**
+ * cURL SSL setup callback
+ */
+/*TODO : Commenting this out because of lack of SSL support right now */
+/******************************************************************
+KOSHcode
+fetch_curl_sslctxfun(CURL *curl_handle, void *_sslctx, void *parm)
+{
+	struct curl_fetch_info *f = (struct curl_fetch_info *) parm;
+	SSL_CTX *sslctx = _sslctx;
+	long options = SSL_OP_ALL;
+	SSL_CTX_set_verify(sslctx, SSL_VERIFY_PEER, fetch_curl_verify_callback);
+	SSL_CTX_set_cert_verify_callback(sslctx, fetch_curl_cert_verify_callback,
+					 parm);
-	return ctx;
+	if (f->downgrade_tls) {
 #ifdef SSL_OP_NO_TLSv1_1
+//		 Disable TLS1.1, if the server can't cope with it
+		options |= SSL_OP_NO_TLSv1_1;
 #endif
+	}
+#ifdef SSL_OP_NO_TLSv1_2
+// Disable TLS1.2, as it causes some servers to stall.
+	options |= SSL_OP_NO_TLSv1_2;
+#endif
+	SSL_CTX_set_options(sslctx, options);
+	return CURLE_OK;
-/**
+}
+******************************************************************/
+/**
+ * Abort a fetch.
- * Dispatch a single job
+ */
+/* TODO: Seems usable until further action */
- */
+void fetch_curl_abort(void *vf)
+{
+	struct curl_fetch_info *f = (struct curl_fetch_info *)vf;
+	assert(f);
+	LOG(("fetch %p, url '%s'", f, nsurl_access(f->url)));
+	fetch_curl_multi = curl_multi_remove_handle(fetch_curl_multi, f);
+	if (f->curl_handle) {
+		f->abort = true;
+	} else {
+		fetch_remove_from_queues(f->fetch_handle);
+		fetch_free(f->fetch_handle);
+	}
+}
+/**
+ * Clean up the provided fetch object and free it.
-bool fetch_curl_start(void *vfetch)
+ *
+ * Will prod the queue afterwards to allow pending requests to be initiated.
+ */
+void fetch_curl_stop(struct fetch_info_slist *node)
+{
+	KOSHMcode codem;
-{
+	/* TODO: Assert doesn't look like a safe option, but this is probably a fatal condition */
+	struct curl_fetch_info *f = node->fetch_info;
-LOG(("curl start\n"));
-	return true;
+	assert(f);
 	LOG(("fetch %p, url '%s'", f, nsurl_access(f->url)));
 	if (f->curl_handle) {
+		/* remove from curl multi handle */
+	  /*TODO: Need a replacement for curl_multi_remove_handle function*/
 	  	/* LOG(("fetch_curl_multi : %u", fetch_curl_multi)); */
+		fetch_curl_multi = curl_multi_remove_handle(fetch_curl_multi, f);
+		/* assert(codem.code == CURLM_OK); */
+		/* Put this curl handle into the cache if wanted. */
+		/* TODO: Cache? */
+		/* fetch_curl_cache_handle(f->curl_handle, f->host); */
+		if(f && f->curl_handle)
+		  http_free(f->curl_handle);
+		f->curl_handle = 0;
+	}
-/**
+	fetch_remove_from_queues(f->fetch_handle);
+	LOG(("Returning"));
- * Abort a fetch.
+}
+/**
+ * Free a fetch structure and associated resources.
+ */
+/*TODO: Except the cert details at the bottom of the function, everything else seems workable*/
+void fetch_curl_free(void *vf)
+{
+	struct curl_fetch_info *f = (struct curl_fetch_info *)vf;
- */
+	int i;
 	DBG("inside fetch_curl_free()..\n");
+	if (f->curl_handle)
+		curl_easy_cleanup(f->curl_handle);
+	nsurl_unref(f->url);
+	lwc_string_unref(f->host);
+	free(f->location);
+	free(f->cookie_string);
+	free(f->realm);
+	if (f->headers)
+		curl_slist_free_all(f->headers);
+	free(f->post_urlenc);
+	/* TODO: Deal with POST data asap */
+	/* if (f->post_multipart) */
+	/* 	curl_formfree(f->post_multipart); */
+	/* for (i = 0; i < MAX_CERTS && f->cert_data[i].cert; i++) { */
+	/* 	f->cert_data[i].cert->references--; */
+	/* 	if (f->cert_data[i].cert->references == 0) */
+	/* 		X509_free(f->cert_data[i].cert); */
+	/* } */
+	free(f);
+}
+/**
+ * Do some work on current fetches.
+ *
+ * Must be called regularly to make progress on fetches.
+ */
+/*TODO: This is our slave (from master slave) function that will poll fetches.
+  We will maintain our own global ring of handles and let this function poll the entries
+  and do some work accordingly. Useful for multiple transfers simultaneously.
+*/
+void fetch_curl_poll(lwc_string *scheme_ignored)
+{
+	int running, queue;
-void fetch_curl_abort(void *ctx)
+	KOSHMcode codem;
-{
+	if(!fetch_curl_multi)
+	  LOG(("fetch_curl_multi is NULL"));
+	else
+	  {
+	    struct fetch_info_slist *temp = fetch_curl_multi;
+	    curl_multi_perform(fetch_curl_multi);
+	    while(temp)
+	      {
+		struct fetch_info_slist *new_temp = temp->next;
+		/* Check if the headers were received. thanks hidnplayr :P */
+		if ((temp->handle->flags & FLAG_GOT_HEADER) && (!temp->fetch_curl_header_called))
+		  {
+		    fetch_curl_header(temp->fetch_info);
+		    temp->fetch_curl_header_called = true;
+		  }
+		if(temp->handle->flags & FLAG_GOT_ALL_DATA) /* FLAG_GOT_ALL_DATA is set */
+		  {
+		    /* DBG(("calling fetch_curl_data")); */
+		    /* LOG(("content in handle is : %s", temp->handle->content_ptr)); */
+		    fetch_curl_data(temp->fetch_info);
+		    fetch_curl_done(temp);
+		    fetch_curl_multi = curl_multi_remove_handle(fetch_curl_multi, temp->fetch_info);
+		  }
+		/*Add Error FLAG handle here TODO*/
+		temp = new_temp;
+	      }
+	  }
+      /* TODO: Add more flags here */
+      /*TODO: Handle various conditions here, and set the status code accordinpgly when
+	calling fetch_curL_done
+      */
+      /* TODO: Probably decide the condition of the fetch here */
+      /* The whole data recieved is shown by FLAG_GOT_ALL_DATA that is 1 SHL 2, meaning 4. Check for it right here. */
+	/* process curl results */
+	/*TODO: Needs to be replaced , no idea how to do it right now */
+	/* Go through each http_msg handle from http.obj and check if it's done yet or not ,
+	   using the return value from http_receive.   If done, remove it. Else let it stay.
+	*/
+	/*TODO: This has been commented to figure out linker errors.
+	  Uncomment this and combine this with the above chunk toget the main process loop
+	*/
+	/* curl_msg = curl_multi_info_read(fetch_curl_multi, &queue); */
+	/* while (curl_msg) { */
+	/* 	switch (curl_msg->msg) { */
+	/* 		case CURLMSG_DONE: */
+	/* 			fetch_curl_done(curl_msg->easy_handle, */
+	/* 					curl_msg->data.result); */
+	/* 			break; */
-	struct fetch_curl_context *c = ctx;
+	/* 		default: */
+	/* 			break; */
+	/* 	} */
+	/* 	curl_msg = curl_multi_info_read(fetch_curl_multi, &queue); */
+	/* } */
-	/* To avoid the poll loop having to deal with the fetch context
+#ifdef FETCHER_CURLL_SCHEDULED
+	if (running != 0) {
+		schedule(1, (schedule_callback_fn)fetch_curl_poll, fetch_curl_poll);
+	}
+#endif
+	/* LOG(("Returning froms fetch_curl_poll\n")); */
+}
+/**
+ * Handle a completed fetch (CURLMSG_DONE from curl_multi_info_read()).
+ *
+ * \param  curl_handle	curl easy handle of fetch
+ */
+/* TODO: curl_easy_getinfo needs a replacement for getting the status of things around
+   SSL stuff needs to go away , as usual.
+*/
+void fetch_curl_done(struct fetch_info_slist *node)
+{
+	fetch_msg msg;
+	bool finished = false;
+	bool error = false;
+	bool cert = false;
+	bool abort_fetch;
+	struct curl_fetch_info *f = node->fetch_info;
+	char **_hideous_hack = (char **) (void *) &f;
+	KOSHcode code;
+	int result = CURLE_OK;
-	 * disappearing from under it, we simply flag the abort here.
+	/* TODO: Remove this definition and get a better replacement for CURLINFO_PRIVATE */
+	/* struct cert_info certs[MAX_CERTS]; */
+	/* memset(certs, 0, sizeof(certs)); */
+	/* find the structure associated with this fetch */
+	/* For some reason, cURL thinks CURLINFO_PRIVATE should be a string?! */
+	/* TODO: Do we really need curl_easy_getinfo? Our library struct provides us with all of this info already  */
+	/* code.code = curl_easy_getinfo(curl_handle, CURLINFO_PRIVATE, _hideous_hack); */
+	/* assert(code.code == CURLE_OK); */
-	 * The poll loop itself will perform the appropriate cleanup.
+	abort_fetch = f->abort;
+	LOG(("done %s", nsurl_access(f->url)));
+	if (abort_fetch == false && (result == CURLE_OK ||
+			(result == CURLE_WRITE_ERROR && f->stopped == false))) {
+		/* fetch completed normally or the server fed us a junk gzip
+		 * stream (usually in the form of garbage at the end of the
+		 * stream). Curl will have fed us all but the last chunk of
+		 * decoded data, which is sad as, if we'd received the last
-	 */
+		 * chunk, too, we'd be able to render the whole object.
+		 * As is, we'll just have to accept that the end of the
+		 * object will be truncated in this case and leave it to
+		 * the content handlers to cope. */
+		if (f->stopped ||
+				(!f->had_headers &&
-	c->aborted = true;
+					fetch_curl_process_headers(f)))
+			; /* redirect with no body or similar */
+		else
+			finished = true;
+	} else if (result == CURLE_PARTIAL_FILE) {
+		/* CURLE_PARTIAL_FILE occurs if the received body of a
+		 * response is smaller than that specified in the
+		 * Content-Length header. */
+		if (!f->had_headers && fetch_curl_process_headers(f))
+			; /* redirect with partial body, or similar */
+		else {
+			finished = true;
+		}
+	} else if (result == CURLE_WRITE_ERROR && f->stopped) {
+		/* CURLE_WRITE_ERROR occurs when fetch_curl_data
+		 * returns 0, which we use to abort intentionally */
+		;
+	/* } else if (result == CURLE_SSL_PEER_CERTIFICATE || */
+	/* 		result == CURLE_SSL_CACERT) { */
+	/* 	memcpy(certs, f->cert_data, sizeof(certs)); */
+	/* 	memset(f->cert_data, 0, sizeof(f->cert_data)); */
+	/* 	cert = true; */
+	} else {
+		LOG(("Unknown cURL response code %d", result));
+		error = true;
+	}
+	fetch_curl_stop(node);
+	if (abort_fetch)
+		; /* fetch was aborted: no callback */
+	else if (finished) {
+		msg.type = FETCH_FINISHED;
+		__menuet__debug_out("Calling FETCH_FINISHED callback inside fetch_curl_data\n");
+		fetch_send_callback(&msg, f->fetch_handle);
+	/* } else if (cert) { */
+	/* 	int i; */
+	/* 	BIO *mem; */
+	/* 	BUF_MEM *buf; */
+	/* 	/\* struct ssl_cert_info ssl_certs[MAX_CERTS]; *\/ */
+	/* 	for (i = 0; i < MAX_CERTS && certs[i].cert; i++) { */
+	/* 		ssl_certs[i].version = */
+	/* 			X509_get_version(certs[i].cert); */
+	/* 		mem = BIO_new(BIO_s_mem()); */
+	/* 		ASN1_TIME_print(mem, */
+	/* 				X509_get_notBefore(certs[i].cert)); */
+	/* 		BIO_get_mem_ptr(mem, &buf); */
+	/* 		(void) BIO_set_close(mem, BIO_NOCLOSE); */
+	/* 		BIO_free(mem); */
+	/* 		snprintf(ssl_certs[i].not_before, */
+	/* 				min(sizeof ssl_certs[i].not_before, */
+	/* 					(unsigned) buf->length + 1), */
+	/* 				"%s", buf->data); */
+	/* 		BUF_MEM_free(buf); */
+	/* 		mem = BIO_new(BIO_s_mem()); */
+	/* 		ASN1_TIME_print(mem, */
+	/* 				X509_get_notAfter(certs[i].cert)); */
+	/* 		BIO_get_mem_ptr(mem, &buf); */
+	/* 		(void) BIO_set_close(mem, BIO_NOCLOSE); */
+	/* 		BIO_free(mem); */
+	/* 		snprintf(ssl_certs[i].not_after, */
+	/* 				min(sizeof ssl_certs[i].not_after, */
+	/* 					(unsigned) buf->length + 1), */
+	/* 				"%s", buf->data); */
+	/* 		BUF_MEM_free(buf); */
+	/* 		ssl_certs[i].sig_type = */
+	/* 			X509_get_signature_type(certs[i].cert); */
+	/* 		ssl_certs[i].serial = */
+	/* 			ASN1_INTEGER_get( */
+	/* 				X509_get_serialNumber(certs[i].cert)); */
+	/* 		mem = BIO_new(BIO_s_mem()); */
+	/* 		X509_NAME_print_ex(mem, */
+	/* 			X509_get_issuer_name(certs[i].cert), */
+	/* 			0, XN_FLAG_SEP_CPLUS_SPC | */
+	/* 				XN_FLAG_DN_REV | XN_FLAG_FN_NONE); */
+	/* 		BIO_get_mem_ptr(mem, &buf); */
+	/* 		(void) BIO_set_close(mem, BIO_NOCLOSE); */
+	/* 		BIO_free(mem); */
+	/* 		snprintf(ssl_certs[i].issuer, */
+	/* 				min(sizeof ssl_certs[i].issuer, */
+	/* 					(unsigned) buf->length + 1), */
+	/* 				"%s", buf->data); */
+	/* 		BUF_MEM_free(buf); */
+	/* 		mem = BIO_new(BIO_s_mem()); */
+	/* 		X509_NAME_print_ex(mem, */
+	/* 			X509_get_subject_name(certs[i].cert), */
+	/* 			0, XN_FLAG_SEP_CPLUS_SPC | */
+	/* 				XN_FLAG_DN_REV | XN_FLAG_FN_NONE); */
+	/* 		BIO_get_mem_ptr(mem, &buf); */
+	/* 		(void) BIO_set_close(mem, BIO_NOCLOSE); */
+	/* 		BIO_free(mem); */
+	/* 		snprintf(ssl_certs[i].subject, */
+	/* 				min(sizeof ssl_certs[i].subject, */
+	/* 					(unsigned) buf->length + 1), */
+	/* 				"%s", buf->data); */
+	/* 		BUF_MEM_free(buf); */
+	/* 		ssl_certs[i].cert_type = */
+	/* 			X509_certificate_type(certs[i].cert, */
+	/* 				X509_get_pubkey(certs[i].cert)); */
+	/* 		/\* and clean up *\/ */
+	/* 		certs[i].cert->references--; */
+	/* 		if (certs[i].cert->references == 0) */
+	/* 			X509_free(certs[i].cert); */
+	/* 	} */
+	/* 	msg.type = FETCH_CERT_ERR; */
-/**
+	/* 	msg.data.cert_err.certs = ssl_certs; */
+	/* 	msg.data.cert_err.num_certs = i; */
+	/* 	fetch_send_callback(&msg, f->fetch_handle); */
+	} else if (error) {
- * Free a fetch structure and associated resources.
+		if (result != CURLE_SSL_CONNECT_ERROR) {
- */
-void fetch_curl_free(void *ctx)
-{
+			msg.type = FETCH_ERROR;
+			msg.data.error = fetch_error_buffer;
+		} else {
+			msg.type = FETCH_SSL_ERR;
+		}
+		fetch_send_callback(&msg, f->fetch_handle);
+	}
+	fetch_free(f->fetch_handle);
+	LOG(("Returning"));
+}
+/**
+ * Callback function for fetch progress.
+ */
+/* TODO: Useful for showing the fetch's progress. Need to figure out a way to hook this up with http.obj
+   More of an interface feature, but it'll be nice to have in a browser.
-	struct fetch_curl_context *c = ctx;
+*/
+int fetch_curl_progress(void *clientp, double dltotal, double dlnow,
+			double ultotal, double ulnow)
+{
+	static char fetch_progress_buffer[256]; /**< Progress buffer for cURL */
+	struct curl_fetch_info *f = (struct curl_fetch_info *) clientp;
+	unsigned int time_now_cs;
+	fetch_msg msg;
+	DBG("inside fetch_curl_progress()..\n");
+	if (f->abort)
+		return 0;
-	nsurl_unref(c->url);
-	free(c->path);
-	RING_REMOVE(ring, c);
-	free(ctx);
-}
+	msg.type = FETCH_PROGRESS;
+	msg.data.progress = fetch_progress_buffer;
-static inline bool fetch_curl_send_callback(const fetch_msg *msg,
+	/* Rate limit each fetch's progress notifications to 2 a second */
-		struct fetch_curl_context *ctx)
+#define UPDATES_PER_SECOND 2
-{
+#define UPDATE_DELAY_CS (100 / UPDATES_PER_SECOND)
+	time_now_cs = wallclock();
+	if (time_now_cs - f->last_progress_update < UPDATE_DELAY_CS)
+		return 0;
+	f->last_progress_update = time_now_cs;
+#undef UPDATE_DELAY_CS
-	ctx->locked = true;
+#undef UPDATES_PERS_SECOND
 	__menuet__debug_out("Inside curl_send_cb, Calling send_cb()\n");
+	if (dltotal > 0) {
-	fetch_send_callback(msg, ctx->fetchh);
+		snprintf(fetch_progress_buffer, 255,
+				messages_get("Progress"),
+				human_friendly_bytesize(dlnow),
+				human_friendly_bytesize(dltotal));
+		fetch_send_callback(&msg, f->fetch_handle);
+	} else {
+		snprintf(fetch_progress_buffer, 255,
+				messages_get("ProgressU"),
+				human_friendly_bytesize(dlnow));
+		fetch_send_callback(&msg, f->fetch_handle);
+	}
+	return 0;
+}
+/**
+ * Ignore everything given to it.
+ *
+ * Used to ignore cURL debug.
+ */
+/*TODO: No idea what it does exactly, so let it be like it was*/
+int fetch_curl_ignore_debug(struct http_msg *handle,
+			    kosh_infotype type,
+			    char *data,
+			    size_t size,
+			    void *userptr)
+{
+	return 0;
 	ctx->locked = false;
-	__menuet__debug_out("Returning ctx->aborted.\n");
+void send_header_callbacks(char *header, unsigned int header_length, struct curl_fetch_info *f)
+{
+  fetch_msg msg;
+  int newline = 0;
-	return ctx->aborted;
+  int i;
+  msg.type = FETCH_HEADER;
-}
+  for(i = 0;i < header_length; i++)
+    {
+      if(header[i] == '\n')
+	{
+	  msg.data.header_or_data.len = i - newline;
+	  msg.data.header_or_data.buf = (const uint8_t *) (header + newline);
+	  /* LOG(("buf inside send_header_cb is : %.*s\n", i - newline, header+newline)); */
+	  newline = i+1;
+	  fetch_send_callback(&msg, f->fetch_handle);
+	}
+    }
+}
-static bool fetch_curl_send_header(struct fetch_curl_context *ctx,
-		const char *fmt, ...)
+/**
-{
+ * Callback function for cURL.
+ */
+/*TODO: Seems okay for now */
+size_t fetch_curl_data(void *_f)
-	fetch_msg msg;
+{
+	struct curl_fetch_info *f = _f;
+	char *data = f->curl_handle->content_ptr;
-	char header[64];
+	KOSHcode code;
-	va_list ap;
+	fetch_msg msg;
-	__menuet__debug_out("Inside fetch_curl_send_header\n");
+	DBG("inside fetch_curl_data()..\n");
+	/* if(f->curl_handle) */
+	/*   LOG(("curl_handle is not NULL\n")); */
+	/* else */
+	/*   LOG(("curl_handle is NULL\n")); */
+	LOG(("Will be Setting HTTP Code to : %u\n", f->curl_handle->status));
-	va_start(ap, fmt);
+	/* ensure we only have to get this information once */
+	if (!f->http_code)
-	vsnprintf(header, sizeof header, fmt, ap);
+	{
+		/* TODO: For extracting the http response code of what happened in case we don't already have that.
+		   http_msg struct should have this info available for query.
+		   code = curl_easy_getinfo(f->curl_handle, CURLINFO_HTTP_CODE, */
+		/* 			 &f->http_code); */
+	  __menuet__debug_out("f->http_code is 0\n");
+	  LOG(("f->http_code was 0\n"));
-	va_end(ap);
+	  f->http_code = f->curl_handle->status;
+	  fetch_set_http_code(f->fetch_handle, f->http_code);
+	  /* assert(code.code == CURLE_OK); */
-	__menuet__debug_out("Header is : ");
+	}
+	else
+	  {
+	    f->http_code = f->curl_handle->status;
+	    fetch_set_http_code(f->fetch_handle, f->http_code);
+	  }
+	__menuet__debug_out("fetch_curl_data: ");
-	__menuet__debug_out(header);
+	LOG(("fetch->http_code is  : %ld\n", f->http_code));
-	msg.type = FETCH_HEADER;
+	/* ignore body if this is a 401 reply by skipping it and reset
+	   the HTTP response code to enable follow up fetches */
-	msg.data.header_or_data.buf = (const uint8_t *) header;
+	if (f->http_code == 401)
+	{
+		f->http_code = 0;
+		return;
-	msg.data.header_or_data.len = strlen(header);
+		/* return size * nmemb; */
+	}
-	__menuet__debug_out("\nCalling fetch_curl_send_callback\n");
+	if (f->abort || (!f->had_headers && fetch_curl_process_headers(f))) {
+	  __menuet__debug_out("Setting f->stopped = true\n");
+	  f->stopped = true;
+	  return 0;
+	}
+	/* send data to the caller */
+	LOG(("Inside fetch_curl_data, http_code is : %li", f->http_code));
+	if(f->http_code == 200)
+	  {
+	    send_header_callbacks(&f->curl_handle->header, f->curl_handle->header_length, f);
+	    LOG(("Finished sending header callbacks\n"));
+	    if (f->abort) {
+	      f->stopped = true;
+	      return 0;
-	fetch_curl_send_callback(&msg, ctx);
+	    }
+	  }
+	else
+	  LOG(("Error, http_code is not 200 but is : %u", f->http_code));
+	msg.type = FETCH_DATA;
+	msg.data.header_or_data.buf = (const uint8_t *) data;
+	msg.data.header_or_data.len = (size_t)f->curl_handle->content_received;
+	/* LOG(("FETCH_DATA with buf = %s and length = %u", msg.data.header_or_data.buf, msg.data.header_or_data.len)); */
+	fetch_send_callback(&msg, f->fetch_handle);
+	/* __menuet__debug_out("After Calling callback_send_fetch\n in fetch_curl_data"); */
+	if (f->abort) {
+		f->stopped = true;
+		return 0;
+	}
+	/* __menuet__debug_out("Exiting fetch_curl_data"); */
+	/* return size * nmemb; */
+}
+/**
+   Convertor function for converting a header field to its dedicated buffer
+   Also terminates with a NULL character so that the string is safe for further use.
+   field_name: Append the field name: to the generated string. Pass NULL for no field name.
+   source -> Refers to the original data which needs to be copied into dest.
+   dest -> destination. This will be allocated using malloc in the function as size is determined here.1
 	__menuet__debug_out("Returning ctx->aborted\n");
+   dest uses a double pointer in order to allocate storage for the original pointer and not it's temporary copy.
+**/
+void convert_to_asciiz(char *field_name, char *source, char **dest)
+{
+  char *i;
-	return ctx->aborted;
+  if(source == NULL)
+    return;
+  if(field_name == NULL)
+    {
-}
+      for(i = source; !isspace(*i); i++);
-static void fetch_curl_process_error(struct fetch_curl_context *ctx, int code)
+      *dest = (char *)malloc(i - source + 1);	/* Allocate a big enough buffer with +1 for NULL character */
+      strncpy(*dest, source, i - source); /* Copy to buffer */
-{
+      (*dest)[i - source] = '\0';
 	fetch_msg msg;
-	char buffer[1024];
-	const char *title;
+  else
-	char key[8];
-	/* content is going to return error code */
-	fetch_set_http_code(ctx->fetchh, code);
-	/* content type */
-	if (fetch_curl_send_header(ctx, "Content-Type: text/html"))
-		goto fetch_file_process_error_aborted;
-	snprintf(key, sizeof key, "HTTP%03d", code);
-	title = messages_get(key);
-	snprintf(buffer, sizeof buffer, "%s"
-			"%s
"
-			"Error %d while fetching file %s
",
-			title, title, code, nsurl_access(ctx->url));
-	msg.type = FETCH_DATA;
-	msg.data.header_or_data.buf = (const uint8_t *) buffer;
-	msg.data.header_or_data.len = strlen(buffer);
-	if (fetch_curl_send_callback(&msg, ctx))
-		goto fetch_file_process_error_aborted;
-	msg.type = FETCH_FINISHED;
-	fetch_curl_send_callback(&msg, ctx);
-fetch_file_process_error_aborted:
-	return;
-}
-static void fetch_curl_process(struct fetch_curl_context *ctx) {
-	char ps[96], str[128];
-	sprintf(ps, "Yay! Path is %s", ctx->path);
-	execl ("/sys/@notify", ps, 0);
-	fetch_msg msg;
-    __menuet__debug_out("AHOY!\n");
-	struct http_msg *http_ahoy;
-	unsigned int wererat = 0;
-    char * pa=ctx->path;
-    //    asm volatile ("pusha");		// TODO: verify if this is still needed. It used to be an issue with the library but should be fixed now.
-    wererat = http_get(pa, NULL);	// TODO: a pointer to additional headers (for cookies etc) can be placed here in the future.
-    //    asm volatile ("popa");		// ....
-    if(wererat == 0) /* Error condition : http_get returned 0 */
-      __menuet__debug_out("http_get() failed. [ Return Value 0 ]\n");
-    else
-      __menuet__debug_out("http_get() Succeeded!. [ Return Value Non zero ]\n");
-    __menuet__debug_out("HTTP GOT!\n");
-    int result = 1337;
-    char result_str[12];
-    char wererat_str[13];
+    {
-    http_ahoy = wererat;
-    sprintf (str, "Header %u bytes, content %u bytes, received %u bytes\n", http_ahoy->header_length, http_ahoy->content_length, http_ahoy->content_received);
-    __menuet__debug_out(str);
-    __menuet__debug_out("Going into the do while loop for http_process\n");
-    do  {
-      //          sprintf(result_str, "%d", result);
-      //          __menuet__debug_out("Result is : ");
-      //          __menuet__debug_out(result_str);
-      //          __menuet__debug_out("\n");
-		//		asm volatile ("pusha");	// TODO: verify if this is still needed. It used to be an issue with the library but should be fixed now.
-		result = http_process(wererat);
-		//		asm volatile ("popa");	// ....
-    } while ((result != 0));
-    __menuet__debug_out("After the do while loop for http_process.\n");
-    if(result == 0)
+      char *temp;
-      __menuet__debug_out("http_process() worked successfully!\n");
-    else
+      for(i = source; !isspace(*i); i++);
-      __menuet__debug_out("http_process() failed!\n");
-//    http_ahoy = wererat;		// really needed again??
-      sprintf (str, "Header %u bytes, content %u bytes, received %u bytes\n", http_ahoy->header_length, http_ahoy->content_length, http_ahoy->content_received);
+      *dest = (char *)malloc(i - source + 1 + strlen(field_name) + 2);	/* Allocate a big enough buffer with +1 for NULL character */
-    __menuet__debug_out(str);
+      strcpy(*dest, field_name);
+      temp = *dest + strlen(field_name);
-/* fetch is going to be successful */
+      *temp = ':';
+      temp++;
+      *temp = ' ';
+      temp++;
+      strncpy(temp, source, i - source); /* Copy to buffer */
+      temp[i - source] = '\0';
+    }
+}
+/**
+ * Callback function for headers.
+ *
+ * See RFC 2616 4.2.
+ */
+/*TODO: Seems okay for now */
+/* Called when the headers have been received. A callback should be sent for each header line and not the entire thing at once*/
+void fetch_curl_header(void *_f) /* Change type to curl_fetch_infO? TODO*/
+{
+	struct curl_fetch_info *f = _f;
+	struct http_msg *handle = f->curl_handle;
+	char *realm = NULL; /*Remove me ? TODO*/
+	char *cookie = NULL;
+	char *content_length = NULL;
+	char *content_type = NULL;
+	int realm_start;
+	int i;
+	fetch_msg msg;
+	/* size *= nmemb; */ /* ???? */
+	__menuet__debug_out("inside fetch_curl_header()..\n");
+	if (f->abort) {
+		f->stopped = true;
+		return;
+	}
+	f->http_code = handle->status;
+	fetch_set_http_code(f->fetch_handle, f->http_code);
+	LOG(("fetch->http_code is  : %ld\n", f->http_code));
+	convert_to_asciiz(NULL,http_find_header_field(f->curl_handle, "location"), &f->location);
+	convert_to_asciiz("content-length", http_find_header_field(f->curl_handle, "content-length"), &content_length);
+	convert_to_asciiz("set-cookie", http_find_header_field(f->curl_handle, "set-cookie"), &cookie);
+	f->content_length = atol(content_length);
+	if(cookie)
+	  fetch_set_cookie(f->fetch_handle, cookie+12);
+	return;
+	/* if(f->had_headers) */
+	/*   __menuet__debug_out("curl_fetch_data BEFORE: Had headers is true!\n"); */
+	/* else */
+	/*   __menuet__debug_out("curl_fetch_data BEFORE: Had headers is false!\n"); */
+	/* LOG(("Calling fetch_send_callback from fetch_curl_header")); */
+	/* fetch_send_callback(&msg, f->fetch_handle); */
+	/* LOG(("AFTER Calling fetch_send_callback from fetch_curl_header"));	 */
+	/* if(f->had_headers) */
+	/*   __menuet__debug_out("curl_fetch_data : Had headers is true!\n"); */
+	/* else */
+	/*   __menuet__debug_out("curl_fetch_data : Had headers is false!\n"); */
+	/* Remember to use lower case names for header field names for http.obj */
+	/* We extract only these fields */
+	/* convert_to_asciiz("content-length", http_find_header_field(f->curl_handle, "content-length"), &content_length); */
+	/* convert_to_asciiz("content-type", http_find_header_field(f->curl_handle, "content-type"), &content_type); */
+	/* TODO: Uncomment following line and add more fields if required later */
+	/* convert_to_asciiz("www-authenticate", http_find_header_field(f->curl_handle, "www-authenticate"), &realm); */
+	/* LOG(("The &header is : %s", &(f->curl_handle->header))); */
+	/* if(f->location) */
+	/*   { */
+	/*   LOG(("Setting data buf to %s with length %d", f->location, strlen(f->location))); */
+	/*   msg.type = FETCH_HEADER; */
+	/*   msg.data.header_or_data.buf = (const uint8_t *) f->location; */
+	/*   msg.data.header_or_data.len = strlen(f->location); */
+	/*   fetch_send_callback(&msg, f->fetch_handle); */
+	/*   } */
+	/* if(content_type) */
+	/*   { */
+	/*   LOG(("Setting data buf to %s with length %d", content_type, strlen(content_type)));	   */
+	/*   f->content_length = atoi(content_type); */
+	/*   msg.type = FETCH_HEADER; */
+	/*   msg.data.header_or_data.buf = (const uint8_t *) content_type; */
+	/*   msg.data.header_or_data.len = strlen(content_type); */
+	/*   fetch_send_callback(&msg, f->fetch_handle); */
+	/*   } */
+	/* if(content_length) */
+	/*   { */
+	/*   f->content_length = atoi(content_length); */
+	/*   msg.type = FETCH_HEADER; */
+	/*   msg.data.header_or_data.buf = (const uint8_t *) content_length; */
+	/*   msg.data.header_or_data.len = strlen(content_length); */
+	/*   fetch_send_callback(&msg, f->fetch_handle); */
+	/*   } */
+	/* Set appropriate fetch properties */
+	/* if(cookie) */
+	/*   { */
+	/*     fetch_set_cookie(f->fetch_handle, cookie); */
+	/*     msg.type = FETCH_HEADER; */
+	/*     msg.data.header_or_data.buf = (const uint8_t *) cookie; */
+	/*     msg.data.header_or_data.len = strlen(cookie); */
+	/*     fetch_send_callback(&msg, f->fetch_handle);	     */
+	/*   } */
+	/* if(realm) /\* Don't worry about this for now , fix it later TODO *\/ */
+	/*   {     */
+	/*     /\* For getting the realm, this was used as an example : ('WWW-Authenticate: Basic realm="My Realm"')  *\/	    */
+	/*     for(i = strlen("www-authenticate: "); realm[i]; i++) */
+	/*       if(realm[i] == '"') { */
+	/* 	realm_start = i+1; */
+	/* 	break; */
+	/*       }		 */
+	/*     for(i = realm_start ; realm[i]; i++) */
+	/*       if(realm[i] == '"') { */
+	/* 	realm[i] = '\0'; */
+	/* 	break; */
+	/*       } */
+	/*     f->realm = realm; */
+	/*   }	 */
+ /* TODO: call the fetch_callback for www authenticate field and any other fields that will be added here later */
+	/* LOG(("fetch->http_code is  ( AT THE END of f_c_header): %ld\n", f->http_code)); */
+	/* __menuet__debug_out("Leaving fetch_curl_header\n"); */
+	/* if(f->had_headers) */
+	/*   __menuet__debug_out("curl_fetch_data : Had headers is true!\n"); */
+	/* else */
+	/*   __menuet__debug_out("curl_fetch_data : Had headers is false!\n"); */
+	/* f->http_code = handle->status; */
+	/* fetch_set_http_code(f->fetch_handle, f->http_code); */
+/* #define SKIP_ST(o) for (i = (o); i < (int) size && (data[i] == ' ' || data[i] == '\t'); i++) */
+/* 	if (12 < size && strncasecmp(data, "Location:", 9) == 0) { */
+/* 		/\* extract Location header *\/ */
+/* 		free(f->location); */
+/* 		f->location = malloc(size); */
+/* 		if (!f->location) { */
+/* 			LOG(("malloc failed")); */
+/* 			return size; */
+/* 		} */
+/* 		SKIP_ST(9); */
+/* 		strncpy(f->location, data + i, size - i); */
+/* 		f->location[size - i] = '\0'; */
+/* 		for (i = size - i - 1; i >= 0 && */
+/* 				(f->location[i] == ' ' || */
-	__menuet__debug_out("Calling fetch_set_http_code call\n");
+/* 				f->location[i] == '\t' || */
-	fetch_set_http_code(ctx->fetchh, http_ahoy->status);
+/* 				f->location[i] == '\r' || */
-	__menuet__debug_out("Returned from fetch_set_http_code call\n");
+/* 				f->location[i] == '\n'); i--) */
 /* 			f->location[i] = '\0'; */
-	/* Any callback can result in the fetch being aborted.
+/* 	} else if (15 < size && strncasecmp(data, "Content-Length:", 15) == 0) { */
-	 * Therefore, we _must_ check for this after _every_ call to
+/* 		/\* extract Content-Length header *\/ */
+/* 		SKIP_ST(15); */
-	 * fetch_file_send_callback().
+/* 		if (i < (int)size && '0' <= data[i] && data[i] <= '9') */
-	 */
+/* 			f->content_length = atol(data + i); */
+/* 	} else if (17 < size && strncasecmp(data, "WWW-Authenticate:", 17) == 0) { */
+/* 		/\* extract the first Realm from WWW-Authenticate header *\/ */
+/* 		SKIP_ST(17); */
-	__menuet__debug_out("Calling fetch_curl_send_header: 1\n");
-	if (fetch_curl_send_header(ctx, "Content-Type: %s",
+/* 		while (i < (int) size - 5 && */
+/* 				strncasecmp(data + i, "realm", 5)) */
+/* 			i++; */
+/* 		while (i < (int) size - 1 && data[++i] != '"') */
+/* 			/\* *\/; */
+/* 		i++; */
+/* 		if (i < (int) size) { */
+/* 			size_t end = i; */
-			fetch_filetype(ctx->path)))
+/* 			while (end < size && data[end] != '"') */
+/* 				++end; */
-		goto fetch_file_process_aborted;
+/* 			if (end < size) { */
+/* 				free(f->realm); */
+/* 				f->realm = malloc(end - i + 1); */
+/* 				if (f->realm != NULL) { */
+/* 					strncpy(f->realm, data + i, end - i); */
+/* 					f->realm[end - i] = '\0'; */
-	/* main data loop */
+/* 				} */
-	__menuet__debug_out("inside main data loop\n");
+/* 			} */
+/* 		} */
-		msg.type = FETCH_DATA;
+/* 	} else if (11 < size && strncasecmp(data, "Set-Cookie:", 11) == 0) { */
+/* 		/\* extract Set-Cookie header *\/ */
-		msg.data.header_or_data.buf = http_ahoy->content_ptr; 	// lets pray this works..x2
+/* 		SKIP_ST(11); */
+/* 		fetch_set_cookie(f->fetch_handle, &data[i]); */
+/* 	} */
-		msg.data.header_or_data.len = http_ahoy->content_received;
+/* 	return size; */
+/* #undef SKIP_ST */
+}
-	__menuet__debug_out("Calling fetch_curl_send_callback\n");
-		fetch_curl_send_callback(&msg, ctx);
+/**
+ * Find the status code and content type and inform the caller.
+ *
+ * Return true if the fetch is being aborted.
+ */
+/*TODO: Handling the http status codes here and performing accordingly*/
+bool fetch_curl_process_headers(struct curl_fetch_info *f)
+{
+        long http_code;
+	KOSHcode code;
+	fetch_msg msg;
+	__menuet__debug_out("Setting had_headers to true\n");
+	f->had_headers = true;
+	http_code = f->curl_handle->status;
+	LOG(("Inside fetch_curl_process_headers..HTTP CODE : %ld\n", http_code));
+	if (!f->http_code)
+	  {
+	  /* TODO: Handle this like another similar piece of code in the file with HTTP_CODE_CURLINFO */
+	    /* code = curl_easy_getinfo(f->curl_handle, CURLINFO_HTTP_CODE, */
+	    /* 			 &f->http_code); */
+	    /* Replaced with this :  */
+	    /* Have a fetch_set_http_code here? TODO*/
+	    f->http_code = http_code;
+	    fetch_set_http_code(f->fetch_handle, f->http_code);
+	    /* assert(code.code == CURLE_OK); */
+	}
+	LOG(("HTTP status code %li\n", http_code));
+	if (http_code == 304 && !f->post_urlenc && !f->post_multipart) {
+		/* Not Modified && GET request */
+		msg.type = FETCH_NOTMODIFIED;
+		fetch_send_callback(&msg, f->fetch_handle);
+		return true;
+	}
+	/* handle HTTP redirects (3xx response codes) */
+	if (300 <= http_code && http_code < 400) {
+	  LOG(("FETCH_REDIRECT, '%s'", f->location));
+	  msg.type = FETCH_REDIRECT;
-	__menuet__debug_out("Calling http_free with wererat = ");
+	  msg.data.redirect = f->location;
+	  fetch_send_callback(&msg, f->fetch_handle);
+	  return true;
+	}
+	/* handle HTTP 401 (Authentication errors) */
+	if (http_code == 401) {
+                msg.type = FETCH_AUTH;
+		msg.data.auth.realm = f->realm;
+		fetch_send_callback(&msg, f->fetch_handle);
+		return true;
+	}
+	/* handle HTTP errors (non 2xx response codes) */
+	if (f->only_2xx && strncmp(nsurl_access(f->url), "http", 4) == 0 &&
+			(http_code < 200 || 299 < http_code)) {
+		msg.type = FETCH_ERROR;
+		DBG("FETCH_ERROR\n");
+		msg.data.error = messages_get("Not2xx");
+		fetch_send_callback(&msg, f->fetch_handle);
+		return true;
-	sprintf(wererat_str, "%u", wererat);
+	}
+	if (f->abort)
+		return true;
+	DBG("Returning false from fetch_curl_process_headers()\n");
+	return false;
+}
+/**
+ * Convert a list of struct ::fetch_multipart_data to a list of
+ * struct curl_httppost for libcurl.
+ */
+/* TODO: Not sure how to handle multipart data yet, but hopefully it'll be figured out soon */
+/* TODO: Seems like the forms that are being created use sequential fields, so we can probably craft the same */
+/*       using post from http,obj */
+struct curl_httppost *
+fetch_curl_post_convert(const struct fetch_multipart_data *control)
-	__menuet__debug_out(wererat_str);
+{
+	struct curl_httppost *post = 0, *last = 0;
+	/* TODO: CURLFORMcode code; */
-	__menuet__debug_out("\n");
+	DBG("inside fetch_curl_post_convert()..\n");
+	for (; control; control = control->next) {
+		if (control->file) {
+			char *leafname = 0;
+			leafname = filename_from_path(control->value);
+			if (leafname == NULL)
+				continue;
+			/* We have to special case filenames of "", so curl
-	http_free(wererat);
+			 * a) actually attempts the fetch and
+			 * b) doesn't attempt to open the file ""
-	if (ctx->aborted == false) {
-	__menuet__debug_out("ctx->aborted = false\n");
-		msg.type = FETCH_FINISHED;
+			 */
+			if (control->value[0] == '\0') {
+				/* dummy buffer - needs to be static so
+				 * pointer's still valid when we go out
+				 * of scope (not that libcurl should be
+				 * attempting to access it, of course). */
+				/* static char buf; */
+				/* code = curl_formadd(&post, &last, */
+				/* 	CURLFORM_COPYNAME, control->name, */
+				/* 	CURLFORM_BUFFER, control->value, */
+				/* 	/\* needed, as basename("") == "." *\/ */
+				/* 	CURLFORM_FILENAME, "", */
+				/* 	CURLFORM_BUFFERPTR, &buf, */
+				/* 	CURLFORM_BUFFERLENGTH, 0, */
-	__menuet__debug_out("Calling fetch_curl_send_callback\n");
+				/* 	CURLFORM_CONTENTTYPE, */
+				/* 		"application/octet-stream", */
+				/* 	CURLFORM_END); */
+				/* if (code != CURL_FORMADD_OK) */
+				/* 	LOG(("curl_formadd: %d (%s)", */
+				/* 		code, control->name)); */
+			} else {
+				/* char *mimetype = fetch_mimetype(control->value); */
+				/* code = curl_formadd(&post, &last, */
+				/* 	CURLFORM_COPYNAME, control->name, */
+				/* 	CURLFORM_FILE, control->value, */
+				/* 	CURLFORM_FILENAME, leafname, */
+				/* 	CURLFORM_CONTENTTYPE, */
-		fetch_curl_send_callback(&msg, ctx);
+				/* 	(mimetype != 0 ? mimetype : "text/plain"), */
+				/* 	CURLFORM_END); */
-	__menuet__debug_out("After Calling fetch_curl_send_callback\n");
+				/* if (code != CURL_FORMADD_OK) */
+				/* 	LOG(("curl_formadd: %d (%s=%s)", */
+				/* 		code, control->name, */
+				/* 		control->value)); */
+				/* free(mimetype); */
+			}
-	}
+			free(leafname);
+		}
+		else {
+			/* code = curl_formadd(&post, &last, */
+			/* 		CURLFORM_COPYNAME, control->name, */
+			/* 		CURLFORM_COPYCONTENTS, control->value, */
+			/* 		CURLFORM_END); */
+			/* if (code != CURL_FORMADD_OK) */
+			/* 	LOG(("curl_formadd: %d (%s=%s)", code, */
+			/* 			control->name, */
+			/* 			control->value)); */
+		}
+	}
+	return post;
+}
+/**
+ * OpenSSL Certificate verification callback
+ * Stores certificate details in fetch struct.
+ */
+/* TODO: SSL Stuff, useless as of now */
+/* int fetch_curl_verify_callback(int preverify_ok, X509_STORE_CTX *x509_ctx) */
+/* { */
+/* 	X509 *cert = X509_STORE_CTX_get_current_cert(x509_ctx); */
+/* 	int depth = X509_STORE_CTX_get_error_depth(x509_ctx); */
+/* 	int err = X509_STORE_CTX_get_error(x509_ctx); */
+/* 	struct curl_fetch_info *f = X509_STORE_CTX_get_app_data(x509_ctx); */
+/* 	/\* save the certificate by incrementing the reference count and */
+/* 	 * keeping a pointer *\/ */
+/* 	if (depth < MAX_CERTS && !f->cert_data[depth].cert) { */
+/* 		f->cert_data[depth].cert = cert; */
+/* 		f->cert_data[depth].err = err; */
+/* 		cert->references++; */
+/* 	} */
+/* 	return preverify_ok; */
+/* } */
+/**
+ * OpenSSL certificate chain verification callback
+ * Verifies certificate chain, setting up context for fetch_curl_verify_callback
+ */
+/* int fetch_curl_cert_verify_callback(X509_STORE_CTX *x509_ctx, void *parm) */
+/* { */
+/* 	int ok; */
+/* 	/\* Store fetch struct in context for verify callback *\/ */
+/* 	ok = X509_STORE_CTX_set_app_data(x509_ctx, parm); */
+/* 	/\* and verify the certificate chain *\/ */
+/* 	if (ok) */
+/* 		ok = X509_verify_cert(x509_ctx); */
+/* 	return ok; */
+/* } */
+struct curl_slist *curl_slist_append(struct curl_slist * list, const char * string )
+{
+  struct curl_slist *newnode = NULL;
+  DBG("Inside curl_slist_append..\n");
+  newnode = malloc(sizeof(struct curl_slist));
+  if(newnode == NULL)
+    return NULL;
+  strcpy(newnode->data, string);
+  newnode->next = NULL;
+  if(!list)
+    {
+      list = newnode;
+    }
+  else /*list isn't null*/
+    {
+      struct curl_slist *temp = list;
+      while(temp->next!=NULL)
+	temp = temp->next;
+      temp->next = newnode;
+    }
+  return list;
+}
+void curl_slist_free_all(struct curl_slist *list)
+{
+  struct curl_slist *temp = list;
+  DBG("Inside curl_slist_free_all..\n");
+  while(list)
+    {
+      temp = list->next;
+      free(list);
+      list = temp;
+    }
+}
+int curl_multi_add_handle(struct fetch_info_slist **multi_handle, struct curl_fetch_info *new_fetch)
+{
+  DBG("Inside curl_multi_add_handle..Adding handle\n");
+  if(*multi_handle == NULL)
+    {
+      struct fetch_info_slist *new_node = (struct fetch_info_slist *)malloc(sizeof(struct fetch_info_slist));
+      if(new_node == NULL || new_fetch == NULL) //add failture for malloc here TODO
+	return CURLM_FAILED;
+      new_node->fetch_info = new_fetch;
+      new_node->handle = new_fetch->curl_handle;
+      new_node->fetch_curl_header_called = false;
+      *multi_handle = new_node;
+      (*multi_handle)->next = NULL;
+    }
+  else
+    {
+      struct fetch_info_slist *temp = *multi_handle;
+      struct fetch_info_slist *new_node = (struct fetch_info_slist *)malloc(sizeof(struct fetch_info_slist));
+      if(new_node == NULL || new_fetch == NULL) //add failture for malloc here TODO
+	return CURLM_FAILED;
+      while(temp->next)
+	{
+	  temp = temp->next;
+	}
+      new_node->fetch_info = new_fetch;
+      new_node->handle = new_fetch->curl_handle;
+      new_node->next = NULL;
+      new_node->fetch_curl_header_called = false;
+      temp->next = new_node;
+    }
+  return CURLM_OK;
+}
+/* When this function returns, it is assured that the multi list does not contain the node to be deleted.
+   If it was, it was deleted. Else, the list is left unchanged
+*/
+/* This can be sped up a lot by using hash tables or the like for removal to be more speedy :)
+LTG
+*/
+/* struct fetch_info_slist *curl_multi_remove_handle(struct fetch_info_slist *multi_handle, struct fetch_info_slist *node_to_delete) */
+struct fetch_info_slist *curl_multi_remove_handle(struct fetch_info_slist *multi_handle, struct curl_fetch_info *fetch_to_delete)
+{
+  struct fetch_info_slist *temp = multi_handle;
+  char *zz;
+  int pr;
+  nsurl_get(fetch_to_delete->url, NSURL_WITH_FRAGMENT, &zz, &pr);
+  LOG(("inside curl_multi_remove_handle for %s..\n", zz));

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(root)/contrib/network/netsurf/netsurf/content/fetchers/curl.c @ 5535 – Rev 4821 → 5043

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