If the administrator specifies a smart-host as an smtp:// or smtps:// URI, allow...
[citadel.git] / citadel / modules / rssclient / serv_rssclient.c
index 3435eb4dd213aa42b598195113db1697e80e49a7..72ce11ed280f8164cdaa538ce73b0bf6994d7529 100644 (file)
@@ -48,6 +48,7 @@
 #include "citadel_dirs.h"
 #include "md5.h"
 #include "context.h"
+#include "internet_addressing.h"
 
 struct rssroom {
        struct rssroom *next;
@@ -63,6 +64,10 @@ struct rssurl {
 struct rssparser {
        StrBuf *CData;
        struct CtdlMessage *msg;
+       char *link;
+       char *description;
+       char *item_id;
+       struct rssroom *rooms;
 };
 
 time_t last_run = 0L;
@@ -70,22 +75,12 @@ struct CitContext rss_CC;
 struct rssurl *rsstodo = NULL;
 
 
-// This is what RSS probably looks like
-//
-//     <item>
-//             <title><![CDATA[Felicity flexes action chops]]></title>
-//             <link>http://video.foxnews.com/v/5336254459001/</link>
-//             <author>foxnewsonline@foxnews.com (Fox News Online)</author>
-//             <description />
-//             <pubDate>Sat, 25 Feb 2017 14:28:01 EST</pubDate>
-//     </item>
-
-
 // This handler is called whenever an XML tag opens.
 //
 void rss_start_element(void *data, const char *el, const char **attribute)
 {
        struct rssparser *r = (struct rssparser *)data;
+       int i;
 
        if (
                (!strcasecmp(el, "entry"))
@@ -102,6 +97,19 @@ void rss_start_element(void *data, const char *el, const char **attribute)
                r->msg->cm_anon_type = MES_NORMAL;
                r->msg->cm_format_type = FMT_RFC822;
        }
+
+       else if (!strcasecmp(el, "link")) {                     // atom feeds have the link as an attribute
+               for(i = 0; attribute[i]; i += 2) {
+                       if (!strcasecmp(attribute[i], "href")) {
+                               if (r->link != NULL) {
+                                       free(r->link);
+                                       r->link = NULL;
+                               }
+                               r->link = strdup(attribute[i+1]);
+                               striplt(r->link);
+                       }
+               }
+       }
 }
 
 
@@ -116,33 +124,144 @@ void rss_end_element(void *data, const char *el)
                || (!strcasecmp(el, "item"))
        ) {
 
-               // FIXME check the use table
+               if (r->msg != NULL) {                           // Save the message to the rooms
 
-               if (r->msg != NULL) {
-                       // FIXME WRITE IT TO THE ROOMS HERE, DUMMEH
+                       // use the link as an item id if nothing else is available
+                       if ((r->item_id == NULL) && (r->link != NULL)) {
+                               r->item_id = strdup(r->link);
+                       }
+
+                       // check the use table
+                       StrBuf *u = NewStrBuf();
+                       StrBufAppendPrintf(u, "rss/%s", r->item_id);
+                       int already_seen = CheckIfAlreadySeen(u);
+                       FreeStrBuf(&u);
+
+                       if (already_seen == 0) {
+
+                               // Compose the message text
+                               StrBuf *TheMessage = NewStrBuf();
+                               StrBufAppendPrintf(TheMessage,
+                                       "Content-type: text/html\n\n"
+                                       "\n\n"
+                                       "<html><head></head><body>"
+                               );
+               
+                               if (r->description != NULL) {
+                                       StrBufAppendPrintf(TheMessage, "%s<br><br>\r\n", r->description);
+                                       free(r->description);
+                                       r->description = NULL;
+                               }
+               
+                               if (r->link != NULL) {
+                                       StrBufAppendPrintf(TheMessage, "<a href=\"%s\">%s</a>\r\n", r->link, r->link);
+                                       free(r->link);
+                                       r->link = NULL;
+                               }
+       
+                               StrBufAppendPrintf(TheMessage, "</body></html>\r\n");
+                               CM_SetField(r->msg, eMesageText, ChrPtr(TheMessage), StrLength(TheMessage));
+                               FreeStrBuf(&TheMessage);
+       
+                               if (CM_IsEmpty(r->msg, eAuthor)) {
+                                       CM_SetField(r->msg, eAuthor, HKEY("rss"));
+                               }
+       
+                               if (CM_IsEmpty(r->msg, eTimestamp)) {
+                                       CM_SetFieldLONG(r->msg, eTimestamp, time(NULL));
+                               }
+       
+                               // Save it to the room(s)
+                               struct rssroom *rr = NULL;
+                               long msgnum = (-1);
+                               for (rr=r->rooms; rr!=NULL; rr=rr->next) {
+                                       if (rr == r->rooms) {
+                                               msgnum = CtdlSubmitMsg(r->msg, NULL, rr->room, 0);
+                                       }
+                                       else {
+                                               CtdlSaveMsgPointerInRoom(rr->room, msgnum, 0, NULL);
+                                       }
+                                       syslog(LOG_DEBUG, "Saved message %ld to %s", msgnum, rr->room);
+                               }
+                       }
+                       else {
+                               syslog(LOG_DEBUG, "%s was already seen", r->item_id);
+                       }
+       
                        CM_Free(r->msg);
                        r->msg = NULL;
                }
+
+               if (r->item_id != NULL) {
+                       free(r->item_id);
+                       r->item_id = NULL;
+               }
        }
 
        else if (!strcasecmp(el, "title")) {                    // item subject (rss and atom)
-               if ((r->msg != NULL) && (r->msg->cm_fields[eMsgSubject] == NULL)) {
-                       r->msg->cm_fields[eMsgSubject] = strdup(ChrPtr(r->CData));
+               if ((r->msg != NULL) && (CM_IsEmpty(r->msg, eMsgSubject))) {
+                       CM_SetField(r->msg, eMsgSubject, ChrPtr(r->CData), StrLength(r->CData));
+                       striplt(r->msg->cm_fields[eMsgSubject]);
                }
        }
 
        else if (!strcasecmp(el, "author")) {                   // author of item (rss and maybe atom)
-               if ((r->msg != NULL) && (r->msg->cm_fields[eAuthor] == NULL)) {
-                       r->msg->cm_fields[eAuthor] = strdup(ChrPtr(r->CData));
+               if ((r->msg != NULL) && (CM_IsEmpty(r->msg, eAuthor))) {
+                       CM_SetField(r->msg, eAuthor, ChrPtr(r->CData), StrLength(r->CData));
+                       striplt(r->msg->cm_fields[eAuthor]);
                }
        }
 
        else if (!strcasecmp(el, "pubdate")) {                  // date/time stamp (rss) Sat, 25 Feb 2017 14:28:01 EST
-               // FIXME parse it
+               if ((r->msg)&&(r->msg->cm_fields[eTimestamp]==NULL)) {
+                       CM_SetFieldLONG(r->msg, eTimestamp, parsedate(ChrPtr(r->CData)));
+               }
        }
 
        else if (!strcasecmp(el, "updated")) {                  // date/time stamp (atom) 2003-12-13T18:30:02Z
-               // FIXME parse it
+               if ((r->msg)&&(r->msg->cm_fields[eTimestamp]==NULL)) {
+                       struct tm t;
+                       char zulu;
+                       memset(&t, 0, sizeof t);
+                       sscanf(ChrPtr(r->CData), "%d-%d-%dT%d:%d:%d%c", &t.tm_year, &t.tm_mon, &t.tm_mday, &t.tm_hour, &t.tm_min, &t.tm_sec, &zulu);
+                       t.tm_year -= 1900;
+                       t.tm_mon -= 1;
+                       CM_SetFieldLONG(r->msg, eTimestamp, mktime(&t));
+               }
+       }
+
+       else if (!strcasecmp(el, "link")) {                     // link to story (rss)
+               if (r->link != NULL) {
+                       free(r->link);
+                       r->link = NULL;
+               }
+               r->link = strdup(ChrPtr(r->CData));
+               striplt(r->link);
+       }
+
+       else if (
+               (!strcasecmp(el, "guid"))                       // unique item id (rss)
+               || (!strcasecmp(el, "id"))                      // unique item id (atom)
+       ) {
+               if (r->item_id != NULL) {
+                       free(r->item_id);
+                       r->item_id = NULL;
+               }
+               r->item_id = strdup(ChrPtr(r->CData));
+               striplt(r->item_id);
+       }
+
+       else if (
+               (!strcasecmp(el, "description"))                // message text (rss)
+               || (!strcasecmp(el, "summary"))                 // message text (atom)
+               || (!strcasecmp(el, "content"))                 // message text (atom)
+       ) {
+               if (r->description != NULL) {
+                       free(r->description);
+                       r->description = NULL;
+               }
+               r->description = strdup(ChrPtr(r->CData));
+               striplt(r->description);
        }
 
        if (r->CData != NULL) {
@@ -168,12 +287,13 @@ void rss_handle_data(void *data, const char *content, int length)
 
 // Feed has been downloaded, now parse it.
 //
-void rss_parse_feed(StrBuf *Feed)
+void rss_parse_feed(StrBuf *Feed, struct rssroom *rooms)
 {
        struct rssparser r;
 
        memset(&r, 0, sizeof r);
-       XML_Parser p = XML_ParserCreateNS("UTF-8", ':');
+       r.rooms = rooms;
+       XML_Parser p = XML_ParserCreate("UTF-8");
        XML_SetElementHandler(p, rss_start_element, rss_end_element);
        XML_SetCharacterDataHandler(p, rss_handle_data);
        XML_SetUserData(p, (void *)&r);
@@ -212,22 +332,10 @@ void rssclient_push_todo(char *rssurl, char *roomname)
 }
 
 
-// Callback function for curl
-//
-size_t rss_pof_write_data(void *buffer, size_t size, size_t nmemb, void *userp)
-{
-       StrBuf *Downloaded = (StrBuf *)userp;
-       size_t bytes = size * nmemb;
-       StrBufAppendBufPlain(Downloaded, buffer, bytes, 0);
-       return(bytes);
-}
-
-
 // pull one feed (possibly multiple rooms)
 //
 void rss_pull_one_feed(struct rssurl *url)
 {
-       struct rssroom *r;
        CURL *curl;
        CURLcode res;
        StrBuf *Downloaded = NULL;
@@ -242,8 +350,10 @@ void rss_pull_one_feed(struct rssurl *url)
        Downloaded = NewStrBuf();
 
        curl_easy_setopt(curl, CURLOPT_URL, url->url);
+       curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+       curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
        curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);                     // Follow redirects
-       curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, rss_pof_write_data);      // What to do with downloaded data
+       curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, CurlFillStrBuf_callback); // What to do with downloaded data
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, Downloaded);                  // Give it our StrBuf to work with
        curl_easy_setopt(curl, CURLOPT_TIMEOUT, 20L);                           // Time out after 20 seconds
        res = curl_easy_perform(curl);                                          // Perform the request
@@ -252,14 +362,8 @@ void rss_pull_one_feed(struct rssurl *url)
        }
        curl_easy_cleanup(curl);
 
-       rss_parse_feed(Downloaded);                                             // parse the feed
-
-       for (r=url->rooms; r!=NULL; r=r->next) {                                // we might move this somewhere else
-               syslog(LOG_DEBUG, "Saving item to %s", r->room);
-               // FIXME save to rooms
-       }
-
-       FreeStrBuf(&Downloaded);
+       rss_parse_feed(Downloaded, url->rooms);                                 // parse the feed
+       FreeStrBuf(&Downloaded);                                                // free the downloaded feed data
 }
 
 
@@ -326,9 +430,9 @@ void rssclient_scan(void) {
        /* Run no more than once every 15 minutes. */
        if ((now - last_run) < 900) {
                syslog(LOG_DEBUG,
-                             "Client: polling interval not yet reached; last run was %ldm%lds ago",
-                             ((now - last_run) / 60),
-                             ((now - last_run) % 60)
+                       "Client: polling interval not yet reached; last run was %ldm%lds ago",
+                       ((now - last_run) / 60),
+                       ((now - last_run) % 60)
                );
                return;
        }