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lynx-dev Lynx Support for bibp URLs (Bibliographic Protocol)
|
From: |
Rob Cameron |
|
Subject: |
lynx-dev Lynx Support for bibp URLs (Bibliographic Protocol) |
|
Date: |
Tue, 2 Jan 2001 07:31:43 -0800 (PST) |
Last month, I volunteered to add support for the bibp: scheme
(bibliographic protocol) to lynx.
Bibliographic protocol is currently described by the internet draft:
http://www.ietf.org/internet-drafts/draft-cameron-tatu-bibp-02.txt
We have implemented bibp support as described by the enclosed
patch file for 2.8.4dev.16. Patch files for 2.8.4dev.14 and 2.8.3
are available from http://www.usin.org/software/clients/ .
There are some rudimentary demos/tests available at http://usin.org/ .
I had delayed sending the patch to lynx-dev, hoping to have more
interesting server side demos (and final publication of the bibp
document as an RFC). But with the pace of activities on the list,
I thought I'd better get this in.
Please let me know what to do from here.
Robert D. Cameron, Professor
School of Computing Science
Simon Fraser University
Burnaby, B.C. V5A 1S6
---------------------------------------------------------------------------
diff -ur lynx2-8-4r16/LYMessages_en.h lynx2-8-4r16.bibp/LYMessages_en.h
--- lynx2-8-4r16/LYMessages_en.h Thu Sep 21 19:21:59 2000
+++ lynx2-8-4r16.bibp/LYMessages_en.h Tue Jan 2 06:06:44 2001
@@ -355,6 +355,7 @@
#define POPUP_FAILED gettext("Unable to create popup window!")
#define GOTO_DISALLOWED gettext("Goto a random URL is disallowed!")
#define GOTO_NON_HTTP_DISALLOWED gettext("Goto a non-http URL is disallowed!")
+#define GOTO_BIBP_DISALLOWED gettext("You are not allowed to goto \"bibp:\"
URLs")
#define GOTO_CSO_DISALLOWED gettext("You are not allowed to goto \"cso:\"
URLs")
#define GOTO_FILE_DISALLOWED gettext("You are not allowed to goto \"file:\"
URLs")
#define GOTO_FINGER_DISALLOWED gettext("You are not allowed to goto
\"finger:\" URLs")
diff -ur lynx2-8-4r16/WWW/Library/Implementation/HTAnchor.c
lynx2-8-4r16.bibp/WWW/Library/Implementation/HTAnchor.c
--- lynx2-8-4r16/WWW/Library/Implementation/HTAnchor.c Wed Oct 25 09:35:28 2000
+++ lynx2-8-4r16.bibp/WWW/Library/Implementation/HTAnchor.c Tue Jan 2
06:06:44 2001
@@ -83,6 +83,7 @@
newAnchor->FileCache = NULL; /* Path to a disk-cached copy. - FM */
newAnchor->SugFname = NULL; /* Suggested filename. - FM */
newAnchor->RevTitle = NULL; /* TITLE for a LINK with REV. - FM */
+ newAnchor->citehost = NULL; /* LINK REL=citehost - RDC */
newAnchor->cache_control = NULL; /* Cache-Control. - FM */
newAnchor->no_cache = FALSE; /* no-cache? - FM */
newAnchor->content_type = NULL; /* Content-Type. - FM */
@@ -743,6 +744,7 @@
FREE(me->bookmark);
FREE(me->owner);
FREE(me->RevTitle);
+ FREE(me->citehost);
#ifdef SOURCE_CACHE
HTAnchor_clearSourceCache(me);
#endif
@@ -1048,6 +1050,23 @@
me->RevTitle[i] = ' ';
}
}
+ }
+}
+
+/* Citehost for bibp links from LINKs with REL="citehost". - RDC
+*/
+PUBLIC CONST char * HTAnchor_citehost ARGS1(
+ HTParentAnchor *, me)
+{
+ return( me ? me->citehost : NULL);
+}
+
+PUBLIC void HTAnchor_setCitehost ARGS2(
+ HTParentAnchor *, me,
+ CONST char *, citehost)
+{
+ if (me) {
+ StrAllocCopy(me->citehost, citehost);
}
}
diff -ur lynx2-8-4r16/WWW/Library/Implementation/HTAnchor.h
lynx2-8-4r16.bibp/WWW/Library/Implementation/HTAnchor.h
--- lynx2-8-4r16/WWW/Library/Implementation/HTAnchor.h Wed Dec 15 03:03:18 1999
+++ lynx2-8-4r16.bibp/WWW/Library/Implementation/HTAnchor.h Tue Jan 2
06:06:44 2001
@@ -67,6 +67,7 @@
char * title; /* Title of document */
char * owner; /* Owner of document */
char * RevTitle; /* TITLE in REV="made" or REV="owner" LINK */
+ char * citehost; /* Citehost from REL="citehost" LINK */
#ifdef USE_HASH
char * style;
#endif
@@ -294,6 +295,15 @@
extern void HTAnchor_setRevTitle PARAMS((
HTParentAnchor * me,
CONST char * title));
+
+/* Citehost for bibp links from LINKs with REL="citehost". - RDC
+*/
+extern CONST char * HTAnchor_citehost PARAMS((
+ HTParentAnchor * me));
+
+extern void HTAnchor_setCitehost PARAMS((
+ HTParentAnchor * me,
+ CONST char * citehost));
/* Suggested filename handling. - FM
** (will be loaded if we had a Content-Disposition
diff -ur lynx2-8-4r16/lynx.cfg lynx2-8-4r16.bibp/lynx.cfg
--- lynx2-8-4r16/lynx.cfg Wed Oct 25 09:35:28 2000
+++ lynx2-8-4r16.bibp/lynx.cfg Tue Jan 2 06:06:44 2001
@@ -1102,6 +1102,19 @@
#
#LYNX_SIG_FILE:.lynxsig
+.h1 Bibliographic Protocol (bibp scheme)
+
+.h2 BIBP_GLOBAL_SERVER
+# BIBP_GLOBAL_SERVER is the default global server for bibp: links, used
+# when a local bibhost or document-specified citehost is unavailable.
+# Set in userdefs.h and can be changed here.
+#BIBP_GLOBAL_SERVER:http://usin.org/
+
+.h2 BIBP_BIBHOST
+# BIBP_BIBHOST is the URL at which local bibp service may be found, if
+# it exists. Defaults to http://bibhost/ for protocol conformance, but
+# may be overridden here or via --bibhost parameter.
+#BIBP_BIBHOST:http://bibhost/
.h1 Interaction
# These settings control interaction of the user with lynx.
diff -ur lynx2-8-4r16/lynx_help/lynx_url_support.html
lynx2-8-4r16.bibp/lynx_help/lynx_url_support.html
--- lynx2-8-4r16/lynx_help/lynx_url_support.html Thu Apr 13 19:39:31 2000
+++ lynx2-8-4r16.bibp/lynx_help/lynx_url_support.html Tue Jan 2 06:06:44 2001
@@ -18,6 +18,7 @@
<a href="#mailto">mailto</a> <em>|</em>
<a href="#finger">finger</a> <em>|</em>
<a href="#cso">cso</a> <em>|</em>
+<a href="#bibp">bibp</a> <em>|</em>
<a href="#exec">lynxexec, lynxprog</a> <em>|</em>
<a href="#cgi">lynxcgi</a><em>|</em>
<a href="#internal">internal</a><em>]</em>
@@ -537,6 +538,15 @@
(searches) which appear to be a URL with a supported scheme will be
converted into a link for accessing that URL.
<HR>
+
+<H2><a name="bibp">The <em>bibp</em> URL:</a></H2>
+
+<p>Lynx provides built-in support for bibliographic protocol (BibP).
+BibP links are links to published works such as books or journal articles,
+without a predefined server. BibP links are intended for resolution
+by a local bibhost server (http://bibhost/) if it exists. Otherwise,
+resolution is performed by a document-specified server or a known global
+server.
<H2><a name="exec">The <em>lynxexec</em> and <em>lynxprog</em> URLs:</a></H2>
Only in lynx2-8-4r16/po: es.po
Only in lynx2-8-4r16/po: it.po
Only in lynx2-8-4r16/po: ko.po
Only in lynx2-8-4r16/po: no.po
Only in lynx2-8-4r16/po: pl.po
Only in lynx2-8-4r16/po: pt.po
diff -ur lynx2-8-4r16/src/HTML.c lynx2-8-4r16.bibp/src/HTML.c
--- lynx2-8-4r16/src/HTML.c Thu Dec 21 18:44:11 2000
+++ lynx2-8-4r16.bibp/src/HTML.c Tue Jan 2 06:06:44 2001
@@ -1556,6 +1556,13 @@
StrAllocCopy(temp, "RelTitle: ");
StrAllocCat(temp, value[HTML_LINK_REL]);
}
+ } else
+ if (!strcasecomp(value[HTML_LINK_REL], "citehost")) {
+ /* Citehost determination for bibp links. - RDC */
+ HTAnchor_setCitehost(me->node_anchor, href);
+ CTRACE((tfp, "HTML: citehost '%s' found\n", href));
+ FREE(href);
+ break;
} else {
CTRACE((tfp, "HTML: LINK with REL=\"%s\" ignored.\n",
value[HTML_LINK_REL]));
diff -ur lynx2-8-4r16/src/LYGetFile.c lynx2-8-4r16.bibp/src/LYGetFile.c
--- lynx2-8-4r16/src/LYGetFile.c Wed Oct 25 09:35:28 2000
+++ lynx2-8-4r16.bibp/src/LYGetFile.c Tue Jan 2 06:06:44 2001
@@ -758,6 +758,27 @@
#ifdef DIRED_SUPPORT
lynx_edit_mode = FALSE;
#endif /* DIRED_SUPPORT */
+ if (url_type == BIBP_URL_TYPE) {
+ char *bibpTmp=NULL;
+ if (!BibP_bibhost_checked) LYCheckBibHost();
+ if (BibP_bibhost_available) {
+ StrAllocCopy(bibpTmp, BibP_bibhost);
+ } else if (HTMainAnchor &&
HTAnchor_citehost(HTMainAnchor)) {
+ StrAllocCopy(bibpTmp, HTAnchor_citehost(HTMainAnchor));
+ } else {
+ StrAllocCopy(bibpTmp, BibP_globalserver);
+ }
+ if (HTMainAnchor && HTAnchor_citehost(HTMainAnchor)) {
+ StrAllocCat(bibpTmp, "bibp1.0/resolve?citehost=");
+ StrAllocCat(bibpTmp, HTAnchor_citehost(HTMainAnchor));
+ StrAllocCat(bibpTmp, "&usin=");
+ }
+ else StrAllocCat(bibpTmp, "bibp1.0/resolve?usin=");
+ StrAllocCat(bibpTmp, doc->address+5); /* USIN after bibp:
*/
+ StrAllocCopy(doc->address, bibpTmp);
+ WWWDoc.address = doc->address;
+ FREE(bibpTmp);
+ }
if (url_type == FILE_URL_TYPE) {
/*
@@ -865,6 +886,8 @@
url_type == FILE_URL_TYPE) ||
(no_goto_lynxcgi &&
url_type == LYNXCGI_URL_TYPE) ||
+ (no_goto_bibp &&
+ url_type == BIBP_URL_TYPE) ||
(no_goto_cso &&
url_type == CSO_URL_TYPE) ||
(no_goto_finger &&
diff -ur lynx2-8-4r16/src/LYGlobalDefs.h lynx2-8-4r16.bibp/src/LYGlobalDefs.h
--- lynx2-8-4r16/src/LYGlobalDefs.h Wed Oct 25 09:35:28 2000
+++ lynx2-8-4r16.bibp/src/LYGlobalDefs.h Tue Jan 2 06:06:44 2001
@@ -242,6 +242,7 @@
extern BOOLEAN no_goto_lynxexec;
extern BOOLEAN no_goto_lynxprog;
extern BOOLEAN no_goto_mailto;
+extern BOOLEAN no_goto_bibp;
extern BOOLEAN no_goto_news;
extern BOOLEAN no_goto_nntp;
extern BOOLEAN no_goto_rlogin;
@@ -364,6 +365,10 @@
extern BOOLEAN LYMBMAdvanced; /* MBM statusline for ADVANCED? */
extern int LYStatusLine; /* Line for statusline() or -1 */
extern BOOLEAN LYCollapseBRs; /* Collapse serial BRs? */
+extern char *BibP_globalserver; /* global server for bibp: links */
+extern char *BibP_bibhost; /* local server for bibp: links */
+extern BOOLEAN BibP_bibhost_checked; /* bibhost has been checked */
+extern BOOLEAN BibP_bibhost_available; /* bibhost is responding */
extern BOOLEAN LYSetCookies; /* Process Set-Cookie headers? */
extern BOOLEAN LYAcceptAllCookies; /* accept ALL cookies? */
extern char *LYCookieAcceptDomains; /* domains to accept all cookies */
diff -ur lynx2-8-4r16/src/LYMain.c lynx2-8-4r16.bibp/src/LYMain.c
--- lynx2-8-4r16/src/LYMain.c Mon Jan 1 17:39:50 2001
+++ lynx2-8-4r16.bibp/src/LYMain.c Tue Jan 2 06:06:44 2001
@@ -248,6 +248,7 @@
PUBLIC BOOLEAN no_goto_lynxexec = FALSE;
PUBLIC BOOLEAN no_goto_lynxprog = FALSE;
PUBLIC BOOLEAN no_goto_mailto = FALSE;
+PUBLIC BOOLEAN no_goto_bibp = FALSE;
#ifndef DISABLE_NEWS
PUBLIC BOOLEAN no_goto_news = FALSE;
PUBLIC BOOLEAN no_goto_nntp = FALSE;
@@ -411,6 +412,10 @@
PUBLIC BOOLEAN LYMBMAdvanced = TRUE;
PUBLIC int LYStatusLine = -1; /* Line for statusline() if > -1 */
PUBLIC BOOLEAN LYCollapseBRs = COLLAPSE_BR_TAGS; /* Collapse serial BRs? */
+PUBLIC char *BibP_globalserver = NULL; /* global server for bibp: links */
+PUBLIC char *BibP_bibhost = NULL; /* local server for bibp: links */
+PUBLIC BOOLEAN BibP_bibhost_checked = FALSE; /* until LYCheckBibHost */
+PUBLIC BOOLEAN BibP_bibhost_available = FALSE; /* until check succeeds */
PUBLIC BOOLEAN LYSetCookies = SET_COOKIES; /* Process Set-Cookie headers? */
PUBLIC BOOLEAN LYAcceptAllCookies = ACCEPT_ALL_COOKIES; /* take all cookies? */
PUBLIC char *LYCookieAcceptDomains = NULL; /* domains to accept all cookies */
@@ -624,6 +629,8 @@
FREE(LynxSigFile);
FREE(system_mail);
FREE(system_mail_flags);
+ FREE(BibP_bibhost);
+ FREE(BibP_globalserver);
#ifdef EXP_PERSISTENT_COOKIES
FREE(LYCookieFile);
FREE(LYCookieSaveFile);
@@ -1145,7 +1152,8 @@
StrAllocCopy(URLDomainPrefixes, URL_DOMAIN_PREFIXES);
StrAllocCopy(URLDomainSuffixes, URL_DOMAIN_SUFFIXES);
StrAllocCopy(XLoadImageCommand, XLOADIMAGE_COMMAND);
-
+ StrAllocCopy(BibP_globalserver, BIBP_GLOBAL_SERVER);
+ StrAllocCopy(BibP_bibhost, "http://bibhost/";); /* protocol specified. */
/*
* Disable news posting if the compilation-based
* LYNewsPosting value is FALSE. This may be changed
@@ -3061,6 +3069,10 @@
PARSE_FUN(
"base", 4|FUNCTION_ARG, base_fun,
"prepend a request URL comment and BASE tag to text/html\noutputs for
-source dumps"
+ ),
+ PARSE_STR(
+ "bibhost", 4|NEED_LYSTRING_ARG, &BibP_bibhost,
+ "=URL\nlocal bibp server (default http://bibhost/)"
),
#ifdef USE_SLANG
PARSE_FUN(
Only in lynx2-8-4r16.bibp/src: LYMain.c~
diff -ur lynx2-8-4r16/src/LYMainLoop.c lynx2-8-4r16.bibp/src/LYMainLoop.c
--- lynx2-8-4r16/src/LYMainLoop.c Thu Dec 21 18:44:11 2000
+++ lynx2-8-4r16.bibp/src/LYMainLoop.c Tue Jan 2 06:06:44 2001
@@ -560,6 +560,10 @@
!strncmp(user_input_buffer, "mailto:";, 7)) {
HTUserMsg(GOTO_MAILTO_DISALLOWED);
+ } else if (no_goto_bibp &&
+ !strncmp(user_input_buffer, "bibp:", 5)) {
+ HTUserMsg(GOTO_BIBP_DISALLOWED);
+
#ifndef DISABLE_NEWS
} else if (no_goto_news &&
!strncmp(user_input_buffer, "news:";, 5)) {
diff -ur lynx2-8-4r16/src/LYReadCFG.c lynx2-8-4r16.bibp/src/LYReadCFG.c
--- lynx2-8-4r16/src/LYReadCFG.c Thu Dec 21 18:44:11 2000
+++ lynx2-8-4r16.bibp/src/LYReadCFG.c Tue Jan 2 06:06:44 2001
@@ -1404,6 +1404,8 @@
#ifdef DIRED_SUPPORT
PARSE_ENV("auto_uncache_dirlists", CONF_INT, &LYAutoUncacheDirLists),
#endif
+ PARSE_STR("bibp_bibhost", CONF_STR, &BibP_bibhost),
+ PARSE_STR("bibp_globalserver", CONF_STR, &BibP_globalserver),
PARSE_SET("block_multi_bookmarks", CONF_BOOL, &LYMBMBlocked),
PARSE_SET("bold_h1", CONF_BOOL, &bold_H1),
PARSE_SET("bold_headers", CONF_BOOL, &bold_headers),
Only in lynx2-8-4r16.bibp/src: LYReadCFG.c~
diff -ur lynx2-8-4r16/src/LYUtils.c lynx2-8-4r16.bibp/src/LYUtils.c
--- lynx2-8-4r16/src/LYUtils.c Thu Dec 21 18:44:11 2000
+++ lynx2-8-4r16.bibp/src/LYUtils.c Tue Jan 2 06:06:44 2001
@@ -2858,6 +2858,9 @@
} else if (compare_type(cp, "mailto:";, 7)) {
return(MAILTO_URL_TYPE);
+ } else if (compare_type(cp, "bibp:", 5)) {
+ return(BIBP_URL_TYPE);
+
} else if (compare_type(cp, "file:", 5)) {
if (LYisLocalFile(cp)) {
return(FILE_URL_TYPE);
@@ -4198,6 +4201,7 @@
no_inside_rlogin = !(CAN_ANONYMOUS_INSIDE_DOMAIN_RLOGIN);
no_outside_rlogin = !(CAN_ANONYMOUS_OUTSIDE_DOMAIN_RLOGIN);
no_goto = !(CAN_ANONYMOUS_GOTO);
+ no_goto_bibp = !(CAN_ANONYMOUS_GOTO_BIBP);
no_goto_cso = !(CAN_ANONYMOUS_GOTO_CSO);
no_goto_file = !(CAN_ANONYMOUS_GOTO_FILE);
#ifndef DISABLE_FINGER
@@ -6946,6 +6950,29 @@
StrAllocCopy((p->name), newname);
}
}
+
+/*
+ * Check that bibhost defines the BibP icon.
+ */
+PUBLIC void LYCheckBibHost NOARGS
+{
+ DocAddress bibhostIcon;
+ BOOLEAN saveFlag;
+ bibhostIcon.address = NULL;
+ StrAllocCopy(bibhostIcon.address, BibP_bibhost);
+ StrAllocCat(bibhostIcon.address, "bibp1.0/bibpicon.jpg");
+ bibhostIcon.post_data = NULL;
+ bibhostIcon.post_content_type = NULL;
+ bibhostIcon.bookmark = FALSE;
+ bibhostIcon.isHEAD = FALSE;
+ bibhostIcon.safe = FALSE;
+ saveFlag = traversal;
+ traversal = TRUE; /* Hack to force error response. */
+ BibP_bibhost_available = HTLoadAbsolute(&bibhostIcon) == YES;
+ traversal = saveFlag;
+ BibP_bibhost_checked = TRUE;
+}
+
/*
* Management of User Interface Pages. - kw
diff -ur lynx2-8-4r16/src/LYUtils.h lynx2-8-4r16.bibp/src/LYUtils.h
--- lynx2-8-4r16/src/LYUtils.h Thu Dec 21 18:44:11 2000
+++ lynx2-8-4r16.bibp/src/LYUtils.h Tue Jan 2 06:06:44 2001
@@ -108,6 +108,7 @@
extern void LYAddPathSep PARAMS((char **path));
extern void LYAddPathSep0 PARAMS((char *path));
extern void LYAddPathToHome PARAMS((char *fbuffer, size_t fbuffer_size, char
*fname));
+extern void LYCheckBibHost NOPARAMS;
extern void LYCheckMail NOPARAMS;
extern void LYCleanupTemp NOPARAMS;
extern void LYCloseTemp PARAMS((char *name));
@@ -212,6 +213,7 @@
TELNET_GOPHER_URL_TYPE,
INDEX_GOPHER_URL_TYPE,
MAILTO_URL_TYPE,
+ BIBP_URL_TYPE,
FINGER_URL_TYPE,
CSO_URL_TYPE,
HTTPS_URL_TYPE,
Only in lynx2-8-4r16.bibp/src: LYUtils.h~
diff -ur lynx2-8-4r16/userdefs.h lynx2-8-4r16.bibp/userdefs.h
--- lynx2-8-4r16/userdefs.h Fri Jun 23 08:15:08 2000
+++ lynx2-8-4r16.bibp/userdefs.h Tue Jan 2 06:06:44 2001
@@ -838,6 +838,12 @@
#define LYNX_SIG_FILE ".lynxsig"
/********************************
+ * BIBP_GLOBAL_SERVER is the default global server for bibp: links, used
+ * when a local bibhost or document-specified citehost is unavailable.
+ */
+#define BIBP_GLOBAL_SERVER "http://usin.org/";
+
+/********************************
* If USE_SELECT_POPUPS is set FALSE, Lynx will present a vertical list
* of radio buttons for the OPTIONs in SELECT blocks which lack the
* MULTIPLE attribute, instead of using a popup menu. Note that if
@@ -1581,6 +1587,7 @@
* set to FALSE if you don't want users of your anonymous
* account to be able to goto particular URLs.
*/
+#define CAN_ANONYMOUS_GOTO_BIBP TRUE /* BIBP maps to HTTP */
#define CAN_ANONYMOUS_GOTO_CSO FALSE
#define CAN_ANONYMOUS_GOTO_FILE FALSE
#define CAN_ANONYMOUS_GOTO_FINGER TRUE
---------------------------------------------------------------------------
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- lynx-dev Lynx Support for bibp URLs (Bibliographic Protocol),
Rob Cameron <=