+
/*
- * $Id$
- */
-/**
- * \defgroup HTML2HTML Output an HTML message, modifying it slightly to make sure it plays nice
+ * Output an HTML message, modifying it slightly to make sure it plays nice
* with the rest of our web framework.
- * \ingroup WebcitHttpServer
+ *
+ * Copyright (c) 2005-2012 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*/
-/*@{*/
+
#include "webcit.h"
#include "webserver.h"
-/**
- * \brief Strip surrounding single or double quotes from a string.
- *
- * \param s String to be stripped.
+/*
+ * Strip surrounding single or double quotes from a string.
*/
-void stripquotes(char *s)
-{
+void stripquotes(char *s) {
int len;
- if (!s) return;
+ if (!s)
+ return;
len = strlen(s);
- if (len < 2) return;
+ if (len < 2)
+ return;
- if ( ( (s[0] == '\"') && (s[len-1] == '\"') ) || ( (s[0] == '\'') && (s[len-1] == '\'') ) ) {
- s[len-1] = 0;
+ if (((s[0] == '\"') && (s[len - 1] == '\"')) || ((s[0] == '\'') && (s[len - 1] == '\''))) {
+ s[len - 1] = 0;
strcpy(s, &s[1]);
}
}
-/**
- * \brief Check to see if a META tag has overridden the declared MIME character set.
+/*
+ * Check to see if a META tag has overridden the declared MIME character set.
*
- * \param charset Character set name (left unchanged if we don't do anything)
- * \param meta_http_equiv Content of the "http-equiv" portion of the META tag
- * \param meta_content Content of the "content" portion of the META tag
+ * charset Character set name (left unchanged if we don't do anything)
+ * meta_http_equiv Content of the "http-equiv" portion of the META tag
+ * meta_content Content of the "content" portion of the META tag
*/
-void extract_charset_from_meta(char *charset, char *meta_http_equiv, char *meta_content)
-{
+void extract_charset_from_meta(char *charset, char *meta_http_equiv, char *meta_content) {
char *ptr;
char buf[64];
- if (!charset) return;
- if (!meta_http_equiv) return;
- if (!meta_content) return;
+ if (!charset)
+ return;
+ if (!meta_http_equiv)
+ return;
+ if (!meta_content)
+ return;
- if (strcasecmp(meta_http_equiv, "Content-type")) return;
+ if (strcasecmp(meta_http_equiv, "Content-type"))
+ return;
ptr = strchr(meta_content, ';');
- if (!ptr) return;
+ if (!ptr)
+ return;
safestrncpy(buf, ++ptr, sizeof buf);
striplt(buf);
strcpy(charset, "UTF-8");
}
+ /* Remove wandering punctuation */
+ if ((ptr = strchr(charset, '\"')))
+ *ptr = 0;
+ striplt(charset);
}
}
-/**
- * \brief Sanitize and enhance an HTML message for display.
- * Also convert weird character sets to UTF-8 if necessary.
- * Also fixup img src="cid:..." type inline images to fetch the image
+/*
+ * Sanitize and enhance an HTML message for display.
+ * Also convert weird character sets to UTF-8 if necessary.
+ * Also fixup img src="cid:..." type inline images to fetch the image
*
- * \param supplied_charset the input charset as declared in the MIME headers
*/
-void output_html(char *supplied_charset, int treat_as_wiki, int msgnum) {
+void output_html(const char *supplied_charset, int treat_as_wiki, int msgnum, StrBuf * Source, StrBuf * Target) {
char buf[SIZ];
char *msg;
char *ptr;
int i;
int linklen;
char charset[128];
+ StrBuf *BodyArea = NULL;
#ifdef HAVE_ICONV
- iconv_t ic = (iconv_t)(-1) ;
- char *ibuf; /**< Buffer of characters to be converted */
- char *obuf; /**< Buffer for converted characters */
- size_t ibuflen; /**< Length of input buffer */
- size_t obuflen; /**< Length of output buffer */
- char *osav; /**< Saved pointer to output buffer */
+ iconv_t ic = (iconv_t) (-1);
+ char *ibuf; /* Buffer of characters to be converted */
+ char *obuf; /* Buffer for converted characters */
+ size_t ibuflen; /* Length of input buffer */
+ size_t obuflen; /* Length of output buffer */
+ char *osav; /* Saved pointer to output buffer */
#endif
+ if (Target == NULL)
+ Target = WC->WBuf;
safestrncpy(charset, supplied_charset, sizeof charset);
msg = strdup("");
sprintf(new_window, "<a target=\"%s\" href=", TARGET);
- while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
- line_length = strlen(buf);
- buffer_length = content_length + line_length + 2;
- ptr = realloc(msg, buffer_length);
- if (ptr == NULL) {
- wprintf("<b>");
- wprintf(_("realloc() error! couldn't get %d bytes: %s"),
- buffer_length + 1,
- strerror(errno));
- wprintf("</b><br /><br />\n");
- while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+ if (Source == NULL)
+ while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+ line_length = strlen(buf);
+ buffer_length = content_length + line_length + 2;
+ ptr = realloc(msg, buffer_length);
+ if (ptr == NULL) {
+ StrBufAppendPrintf(Target, "<b>");
+ StrBufAppendPrintf(Target, _("realloc() error! couldn't get %d bytes: %s"),
+ buffer_length + 1, strerror(errno));
+ StrBufAppendPrintf(Target, "</b><br><br>\n");
+ while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+
/** flush */
+ }
+ free(msg);
+ return;
}
- free(msg);
- return;
+ msg = ptr;
+ strcpy(&msg[content_length], buf);
+ content_length += line_length;
+ strcpy(&msg[content_length], "\n");
+ content_length += 1;
}
- msg = ptr;
- strcpy(&msg[content_length], buf);
- content_length += line_length;
- strcpy(&msg[content_length], "\n");
- content_length += 1;
+ else {
+ content_length = StrLength(Source);
+ free(msg);
+ msg = (char *) ChrPtr(Source); /* TODO: remove cast */
+ buffer_length = content_length;
}
/** Do a first pass to isolate the message body */
/** Advance to next tag */
ptr = strchr(ptr, '<');
- if ((ptr == NULL) || (ptr >= msgend)) break;
+ if ((ptr == NULL) || (ptr >= msgend))
+ break;
++ptr;
- if ((ptr == NULL) || (ptr >= msgend)) break;
+ if ((ptr == NULL) || (ptr >= msgend))
+ break;
- /**
+ /*
* Look for META tags. Some messages (particularly in
* Asian locales) illegally declare a message's character
* set in the HTML instead of in the MIME headers. This
strcpy(meta_content, &meta_content[8]);
stripquotes(meta_http_equiv);
stripquotes(meta_content);
- extract_charset_from_meta(charset,
- meta_http_equiv, meta_content);
+ extract_charset_from_meta(charset, meta_http_equiv, meta_content);
}
free(meta_content);
}
}
}
- /**
+ /*
* Any of these tags cause everything up to and including
* the tag to be removed.
- */
- if ( (!strncasecmp(ptr, "HTML", 4))
- ||(!strncasecmp(ptr, "HEAD", 4))
- ||(!strncasecmp(ptr, "/HEAD", 5))
- ||(!strncasecmp(ptr, "BODY", 4)) ) {
+ */
+ if ((!strncasecmp(ptr, "HTML", 4))
+ || (!strncasecmp(ptr, "HEAD", 4))
+ || (!strncasecmp(ptr, "/HEAD", 5))
+ || (!strncasecmp(ptr, "BODY", 4))) {
+ char *pBody = NULL;
+
+ if (!strncasecmp(ptr, "BODY", 4)) {
+ pBody = ptr;
+ }
ptr = strchr(ptr, '>');
- if ((ptr == NULL) || (ptr >= msgend)) break;
+ if ((ptr == NULL) || (ptr >= msgend))
+ break;
+ if ((pBody != NULL) && (ptr - pBody > 4)) {
+ char *src;
+ char *cid_start, *cid_end;
+
+ *ptr = '\0';
+ pBody += 4;
+ while ((isspace(*pBody)) && (pBody < ptr))
+ pBody++;
+ BodyArea = NewStrBufPlain(NULL, ptr - pBody);
+
+ if (pBody < ptr) {
+ src = strstr(pBody, "cid:");
+ if (src) {
+ cid_start = src + 4;
+ cid_end = cid_start;
+ while ((*cid_end != '"') && !isspace(*cid_end) && (cid_end < ptr))
+ cid_end++;
+
+ /* copy tag and attributes up to src="cid: */
+ StrBufAppendBufPlain(BodyArea, pBody, src - pBody, 0);
+
+ /* add in /webcit/mimepart/<msgno>/CID/
+ trailing / stops dumb URL filters getting excited */
+ StrBufAppendPrintf(BodyArea, "/webcit/mimepart/%d/", msgnum);
+ StrBufAppendBufPlain(BodyArea, cid_start, cid_end - cid_start, 0);
+
+ if (ptr - cid_end > 0)
+ StrBufAppendBufPlain(BodyArea, cid_end + 1, ptr - cid_end, 0);
+ }
+ else
+ StrBufAppendBufPlain(BodyArea, pBody, ptr - pBody, 0);
+ }
+ *ptr = '>';
+ }
++ptr;
- if ((ptr == NULL) || (ptr >= msgend)) break;
+ if ((ptr == NULL) || (ptr >= msgend))
+ break;
msgstart = ptr;
}
- /**
+ /*
* Any of these tags cause everything including and following
* the tag to be removed.
*/
- if ( (!strncasecmp(ptr, "/HTML", 5))
- ||(!strncasecmp(ptr, "/BODY", 5)) ) {
+ if ((!strncasecmp(ptr, "/HTML", 5))
+ || (!strncasecmp(ptr, "/BODY", 5))) {
--ptr;
msgend = ptr;
strcpy(ptr, "");
-
+
}
++ptr;
strcpy(msg, msgstart);
}
+ /* Now go through the message, parsing tags as necessary. */
+ converted_msg = NewStrBufPlain(NULL, content_length + 8192);
+
+
/** Convert foreign character sets to UTF-8 if necessary. */
#ifdef HAVE_ICONV
- if ( (strcasecmp(charset, "us-ascii"))
- && (strcasecmp(charset, "UTF-8"))
- && (strcasecmp(charset, ""))
- ) {
- lprintf(9, "Converting %s to UTF-8\n", charset);
- ic = ctdl_iconv_open("UTF-8", charset);
- if (ic == (iconv_t)(-1) ) {
- lprintf(5, "%s:%d iconv_open() failed: %s\n",
- __FILE__, __LINE__, strerror(errno));
+ if ((strcasecmp(charset, "us-ascii"))
+ && (strcasecmp(charset, "UTF-8"))
+ && (strcasecmp(charset, ""))
+ ) {
+ syslog(LOG_DEBUG, "Converting %s to UTF-8\n", charset);
+ ctdl_iconv_open("UTF-8", charset, &ic);
+ if (ic == (iconv_t) (-1)) {
+ syslog(LOG_WARNING, "%s:%d iconv_open() failed: %s\n", __FILE__, __LINE__, strerror(errno));
}
}
- if (ic != (iconv_t)(-1) ) {
- ibuf = msg;
- ibuflen = content_length;
- obuflen = content_length + (content_length / 2) ;
- obuf = (char *) malloc(obuflen);
- osav = obuf;
- iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
- content_length = content_length + (content_length / 2) - obuflen;
- osav[content_length] = 0;
- free(msg);
- msg = osav;
- iconv_close(ic);
+ if (Source == NULL) {
+ if (ic != (iconv_t) (-1)) {
+ ibuf = msg;
+ ibuflen = content_length;
+ obuflen = content_length + (content_length / 2);
+ obuf = (char *) malloc(obuflen);
+ osav = obuf;
+ iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
+ content_length = content_length + (content_length / 2) - obuflen;
+ osav[content_length] = 0;
+ free(msg);
+ msg = osav;
+ iconv_close(ic);
+ }
}
+ else {
+ if (ic != (iconv_t) (-1)) {
+ StrBuf *Buf = NewStrBufPlain(NULL, StrLength(Source) + 8096);;
+ StrBufConvert(Source, Buf, &ic);
+ FreeStrBuf(&Buf);
+ iconv_close(ic);
+ msg = (char *) ChrPtr(Source); /* TODO: get rid of this. */
+ }
+ }
+
#endif
- /**
- * At this point, the message has been stripped down to
- * only the content inside the <BODY></BODY> tags, and has
- * been converted to UTF-8 if it was originally in a foreign
- * character set. The text is also guaranteed to be null
- * terminated now.
+ /*
+ * At this point, the message has been stripped down to
+ * only the content inside the <BODY></BODY> tags, and has
+ * been converted to UTF-8 if it was originally in a foreign
+ * character set. The text is also guaranteed to be null
+ * terminated now.
*/
- /** Now go through the message, parsing tags as necessary. */
- converted_msg = NewStrBufPlain(NULL, content_length + 8192);
if (converted_msg == NULL) {
- wprintf("Error %d: %s<br />%s:%d", errno, strerror(errno), __FILE__, __LINE__);
+ StrBufAppendPrintf(Target, "Error %d: %s<br>%s:%d", errno, strerror(errno), __FILE__, __LINE__);
goto BAIL;
}
+ if (BodyArea != NULL) {
+ StrBufAppendBufPlain(converted_msg, HKEY("<table "), 0);
+ StrBufAppendBuf(converted_msg, BodyArea, 0);
+ StrBufAppendBufPlain(converted_msg, HKEY(" width=\"100%\"><tr><td>"), 0);
+ }
ptr = msg;
msgend = strchr(msg, 0);
while (ptr < msgend) {
*/
if (!strncasecmp(ptr, "<a href=\"mailto:", 16)) {
content_length += 64;
- StrBufAppendPrintf(converted_msg,
- "<a href=\"display_enter?force_room=_MAIL_&recp=");
+ StrBufAppendPrintf(converted_msg, "<a href=\"display_enter?force_room=_MAIL_?recp=");
ptr = &ptr[16];
++alevel;
++brak;
}
+
/** Make external links open in a separate window */
else if (!strncasecmp(ptr, "<a href=\"", 9)) {
++alevel;
++brak;
- if ( ((strchr(ptr, ':') < strchr(ptr, '/')))
- && ((strchr(ptr, '/') < strchr(ptr, '>')))
- ) {
+ if (((strchr(ptr, ':') < strchr(ptr, '/')))
+ && ((strchr(ptr, '/') < strchr(ptr, '>')))
+ ) {
/* open external links to new window */
StrBufAppendPrintf(converted_msg, new_window);
ptr = &ptr[8];
}
- else if ( (treat_as_wiki) && (strncasecmp(ptr, "<a href=\"wiki?", 14)) ) {
+ else if ((treat_as_wiki)
+ && (strncasecmp(ptr, "<a href=\"wiki?", 14))
+ && (strncasecmp(ptr, "<a href=\"dotgoto?", 17))
+ && (strncasecmp(ptr, "<a href=\"knrooms?", 17))
+ ) {
content_length += 64;
- StrBufAppendPrintf(converted_msg, "<a href=\"wiki?page=");
+ StrBufAppendPrintf(converted_msg, "<a href=\"wiki?go=");
+ StrBufUrlescAppend(converted_msg, WC->CurRoom.name, NULL);
+ StrBufAppendPrintf(converted_msg, "?page=");
ptr = &ptr[9];
}
else {
ptr = &ptr[9];
}
}
+
/** Fixup <img src="cid:... ...> to fetch the mime part */
else if (!strncasecmp(ptr, "<img ", 5)) {
- char* tag_end=strchr(ptr,'>');
- char* src=strstr(ptr, " src=\"cid:");
char *cid_start, *cid_end;
- ++brak;
+ char *tag_end = strchr(ptr, '>');
+ char *src;
+ /* FIXME - handle this situation (maybe someone opened an <img cid...
+ * and then ended the message)
+ */
+ if (!tag_end) {
+ syslog(LOG_DEBUG, "tag_end is null and ptr is:\n");
+ syslog(LOG_DEBUG, "%s\n", ptr);
+ syslog(LOG_DEBUG, "Theoretical bytes remaining: %d\n", (int) (msgend - ptr));
+ }
- if (src &&
- (cid_start=strchr(src,':')) &&
- (cid_end=strchr(cid_start,'"')) &&
- (cid_end < tag_end)) {
+ src = strstr(ptr, "src=\"cid:");
+ ++brak;
+ if (src && isspace(*(src - 1))
+ && tag_end && (cid_start = strchr(src, ':'))
+ && (cid_end = strchr(cid_start, '"'))
+ && (cid_end < tag_end)
+ ) {
/* copy tag and attributes up to src="cid: */
StrBufAppendBufPlain(converted_msg, ptr, src - ptr, 0);
cid_start++;
/* add in /webcit/mimepart/<msgno>/CID/
- trailing / stops dumb URL filters getting excited */
- StrBufAppendPrintf(converted_msg,
- "src=\"/webcit/mimepart/%d/",msgnum);
+ trailing / stops dumb URL filters getting excited */
+ StrBufAppendPrintf(converted_msg, " src=\"/webcit/mimepart/%d/", msgnum);
StrBufAppendBufPlain(converted_msg, cid_start, cid_end - cid_start, 0);
StrBufAppendBufPlain(converted_msg, "/\"", -1, 0);
-
- ptr = cid_end+1;
+
+ ptr = cid_end + 1;
}
StrBufAppendBufPlain(converted_msg, ptr, tag_end - ptr, 0);
ptr = tag_end;
* Turn anything that looks like a URL into a real link, as long
* as it's not inside a tag already
*/
- else if ( (brak == 0) && (alevel == 0)
- && (!strncasecmp(ptr, "http://", 7))) {
- /** Find the end of the link */
- int strlenptr;
- linklen = 0;
-
- strlenptr = strlen(ptr);
- for (i=0; i<=strlenptr; ++i) {
- if ((ptr[i]==0)
- ||(isspace(ptr[i]))
- ||(ptr[i]==10)
- ||(ptr[i]==13)
- ||(ptr[i]=='(')
- ||(ptr[i]==')')
- ||(ptr[i]=='<')
- ||(ptr[i]=='>')
- ||(ptr[i]=='[')
- ||(ptr[i]==']')
- ||(ptr[i]=='"')
- ||(ptr[i]=='\'')
- ) linklen = i;
- /* did s.b. send us an entity? */
- if (ptr[i] == '&') {
- if ((ptr[i+2] ==';') ||
- (ptr[i+3] ==';') ||
- (ptr[i+5] ==';') ||
- (ptr[i+6] ==';') ||
- (ptr[i+7] ==';'))
- linklen = i;
- }
- if (linklen > 0) break;
+ else if ((brak == 0) && (alevel == 0) && ((!strncasecmp(ptr, "http://", 7)) || (!strncasecmp(ptr, "https://", 8)))) {
+
+ /** Find the end of the link */
+ int strlenptr;
+ linklen = 0;
+
+ strlenptr = strlen(ptr);
+ for (i = 0; i <= strlenptr; ++i) {
+ if ((ptr[i] == 0)
+ || (isspace(ptr[i]))
+ || (ptr[i] == 10)
+ || (ptr[i] == 13)
+ || (ptr[i] == '(')
+ || (ptr[i] == ')')
+ || (ptr[i] == '<')
+ || (ptr[i] == '>')
+ || (ptr[i] == '[')
+ || (ptr[i] == ']')
+ || (ptr[i] == '"')
+ || (ptr[i] == '\'')
+ )
+ linklen = i;
+ /* did s.b. send us an entity? */
+ if (ptr[i] == '&') {
+ if ((ptr[i + 2] == ';') ||
+ (ptr[i + 3] == ';') ||
+ (ptr[i + 5] == ';') || (ptr[i + 6] == ';') || (ptr[i + 7] == ';'))
+ linklen = i;
+ }
+ if (linklen > 0)
+ break;
+ }
+ if (linklen > 0) {
+ char *ltreviewptr;
+ char *nbspreviewptr;
+ char linkedchar;
+ int len;
+
+ len = linklen;
+ linkedchar = ptr[len];
+ ptr[len] = '\0';
+ /* spot for some subject strings tinymce tends to give us. */
+ ltreviewptr = strchr(ptr, '<');
+ if (ltreviewptr != NULL) {
+ *ltreviewptr = '\0';
+ linklen = ltreviewptr - ptr;
}
- if (linklen > 0) {
- char *ltreviewptr;
- char *nbspreviewptr;
- char linkedchar;
- int len = linklen;
-
- len = linklen;
- linkedchar = ptr[len];
- ptr[len] = '\0';
- /* spot for some subject strings tinymce tends to give us. */
- ltreviewptr = strchr(ptr, '<');
- if (ltreviewptr != NULL) {
- *ltreviewptr = '\0';
- linklen = ltreviewptr - ptr;
- }
- nbspreviewptr = strstr(ptr, " ");
- if (nbspreviewptr != NULL) {
- ///*nbspreviewptr = '\0';
- linklen = nbspreviewptr - ptr;
- }
- if (ltreviewptr != 0)
- *ltreviewptr = '<';
-
- ptr[len] = linkedchar;
-
- content_length += (32 + linklen);
- StrBufAppendPrintf(converted_msg, "%s\"", new_window);
- StrBufAppendBufPlain(converted_msg, ptr, linklen, 0);
- StrBufAppendPrintf(converted_msg, "\">");
- StrBufAppendBufPlain(converted_msg, ptr, linklen, 0);
- ptr += linklen;
- StrBufAppendPrintf(converted_msg, "</A>");
+ nbspreviewptr = strstr(ptr, " ");
+ if (nbspreviewptr != NULL) {
+ /* nbspreviewptr = '\0'; */
+ linklen = nbspreviewptr - ptr;
}
+ if (ltreviewptr != 0)
+ *ltreviewptr = '<';
+
+ ptr[len] = linkedchar;
+
+ content_length += (32 + linklen);
+ StrBufAppendPrintf(converted_msg, "%s\"", new_window);
+ StrBufAppendBufPlain(converted_msg, ptr, linklen, 0);
+ StrBufAppendPrintf(converted_msg, "\">");
+ StrBufAppendBufPlain(converted_msg, ptr, linklen, 0);
+ ptr += linklen;
+ StrBufAppendPrintf(converted_msg, "</A>");
+ }
}
else {
StrBufAppendBufPlain(converted_msg, ptr, 1, 0);
ptr++;
}
- /**
- * We need to know when we're inside a tag,
- * so we don't turn things that look like URL's into
- * links, when they're already links - or image sources.
- */
- if (*(ptr-1) == '<') {
- ++brak;
- }
- if (*(ptr-1) == '>') {
- --brak;
- if ((scriptlevel == 0) && (script_start_pos >= 0)) {
- StrBufCutRight(converted_msg, StrLength(converted_msg) - script_start_pos);
- script_start_pos = (-1);
+
+ if ((ptr >= msg) && (ptr <= msgend)) {
+ /*
+ * We need to know when we're inside a tag,
+ * so we don't turn things that look like URL's into
+ * links, when they're already links - or image sources.
+ */
+ if ((ptr > msg) && (*(ptr - 1) == '<')) {
+ ++brak;
+ }
+ if ((ptr > msg) && (*(ptr - 1) == '>')) {
+ --brak;
+ if ((scriptlevel == 0) && (script_start_pos >= 0)) {
+ StrBufCutRight(converted_msg, StrLength(converted_msg) - script_start_pos);
+ script_start_pos = (-1);
+ }
}
+ if (!strncasecmp(ptr, "</A>", 3))
+ --alevel;
}
- if (!strncasecmp(ptr, "</A>", 3)) --alevel;
+ }
+
+ if (BodyArea != NULL) {
+ StrBufAppendBufPlain(converted_msg, HKEY("</td></tr></table>"), 0);
+ FreeStrBuf(&BodyArea);
}
/** uncomment these two lines to override conversion */
+
/** memcpy(converted_msg, msg, content_length); */
+
/** output_length = content_length; */
/** Output our big pile of markup */
- StrBufAppendBuf(WC->WBuf, converted_msg, 0);
+ StrBufAppendBuf(Target, converted_msg, 0);
-BAIL: /** A little trailing vertical whitespace... */
- wprintf("<br /><br />\n");
+ BAIL:
+ /** A little trailing vertical whitespace... */
+ StrBufAppendPrintf(Target, "<br><br>\n");
/** Now give back the memory */
- if (converted_msg != NULL) free(converted_msg);
- if (msg != NULL) free(msg);
+ FreeStrBuf(&converted_msg);
+ if ((msg != NULL) && (Source == NULL))
+ free(msg);
}
-/*@}*/
+
+
+
+
+
+/*
+ * Look for URL's embedded in a buffer and make them linkable. We use a
+ * target window in order to keep the Citadel session in its own window.
+ */
+void UrlizeText(StrBuf * Target, StrBuf * Source, StrBuf * WrkBuf) {
+ int len, UrlLen, Offset, TrailerLen;
+ const char *start, *end, *pos;
+
+ FlushStrBuf(Target);
+
+ start = NULL;
+ len = StrLength(Source);
+ end = ChrPtr(Source) + len;
+ for (pos = ChrPtr(Source); (pos < end) && (start == NULL); ++pos) {
+ if (!strncasecmp(pos, "http://", 7))
+ start = pos;
+ else if (!strncasecmp(pos, "ftp://", 6))
+ start = pos;
+ }
+
+ if (start == NULL) {
+ StrBufAppendBuf(Target, Source, 0);
+ return;
+ }
+ FlushStrBuf(WrkBuf);
+
+ for (pos = ChrPtr(Source) + len; pos > start; --pos) {
+ if ((!isprint(*pos))
+ || (isspace(*pos))
+ || (*pos == '{')
+ || (*pos == '}')
+ || (*pos == '|')
+ || (*pos == '\\')
+ || (*pos == '^')
+ || (*pos == '[')
+ || (*pos == ']')
+ || (*pos == '`')
+ || (*pos == '<')
+ || (*pos == '>')
+ || (*pos == '(')
+ || (*pos == ')')
+ ) {
+ end = pos;
+ }
+ }
+
+ UrlLen = end - start;
+ StrBufAppendBufPlain(WrkBuf, start, UrlLen, 0);
+
+ Offset = start - ChrPtr(Source);
+ if (Offset != 0)
+ StrBufAppendBufPlain(Target, ChrPtr(Source), Offset, 0);
+ StrBufAppendPrintf(Target, "%ca href=%c%s%c TARGET=%c%s%c%c%s%c/A%c",
+ LB, QU, ChrPtr(WrkBuf), QU, QU, TARGET, QU, RB, ChrPtr(WrkBuf), LB, RB);
+
+ TrailerLen = StrLength(Source) - (end - ChrPtr(Source));
+ if (TrailerLen > 0)
+ StrBufAppendBufPlain(Target, end, TrailerLen, 0);
+}
+
+
+void url(char *buf, size_t bufsize) {
+ int len, UrlLen, Offset, TrailerLen, outpos;
+ char *start, *end, *pos;
+ char urlbuf[SIZ];
+ char outbuf[SIZ];
+
+ start = NULL;
+ len = strlen(buf);
+ if (len > bufsize) {
+ syslog(LOG_WARNING, "URL: content longer than buffer!");
+ return;
+ }
+ end = buf + len;
+ for (pos = buf; (pos < end) && (start == NULL); ++pos) {
+ if (!strncasecmp(pos, "http://", 7))
+ start = pos;
+ if (!strncasecmp(pos, "ftp://", 6))
+ start = pos;
+ }
+
+ if (start == NULL)
+ return;
+
+ for (pos = buf + len; pos > start; --pos) {
+ if ((!isprint(*pos))
+ || (isspace(*pos))
+ || (*pos == '{')
+ || (*pos == '}')
+ || (*pos == '|')
+ || (*pos == '\\')
+ || (*pos == '^')
+ || (*pos == '[')
+ || (*pos == ']')
+ || (*pos == '`')
+ || (*pos == '<')
+ || (*pos == '>')
+ || (*pos == '(')
+ || (*pos == ')')
+ ) {
+ end = pos;
+ }
+ }
+
+ UrlLen = end - start;
+ if (UrlLen > sizeof(urlbuf)) {
+ syslog(LOG_WARNING, "URL: content longer than buffer!");
+ return;
+ }
+ memcpy(urlbuf, start, UrlLen);
+ urlbuf[UrlLen] = '\0';
+
+ Offset = start - buf;
+ if ((Offset != 0) && (Offset < sizeof(outbuf)))
+ memcpy(outbuf, buf, Offset);
+ outpos = snprintf(&outbuf[Offset], sizeof(outbuf) - Offset,
+ "%ca href=%c%s%c TARGET=%c%s%c%c%s%c/A%c", LB, QU, urlbuf, QU, QU, TARGET, QU, RB, urlbuf, LB, RB);
+ if (outpos >= sizeof(outbuf) - Offset) {
+ syslog(LOG_WARNING, "URL: content longer than buffer!");
+ return;
+ }
+
+ TrailerLen = len - (end - start);
+ if (TrailerLen > 0)
+ memcpy(outbuf + Offset + outpos, end, TrailerLen);
+ if (Offset + outpos + TrailerLen > bufsize) {
+ syslog(LOG_WARNING, "URL: content longer than buffer!");
+ return;
+ }
+ memcpy(buf, outbuf, Offset + outpos + TrailerLen);
+ *(buf + Offset + outpos + TrailerLen) = '\0';
+}
projects / citadel.git / blobdiff