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- /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /* mimestub.c --- junk to let libmime.a be tested standalone.
- Created: Jamie Zawinski <jwz@netscape.com>, 15-May-96.
- */
-
- /*
- mimestub.c --- junk to let libmime.a be tested standalone.
-
- The junk in this file is various bits and pieces that have been
- cut-and-pasted from other places in Mozilla, mainly netlib. We just
- copied these functions to avoid pulling in the spaghetti that is netlib,
- and libxp, and libmsg, and and and...
-
- In addition to this file, we link directly against lib/xp/xp_file.o,
- lib/xp/xp_str.o, and lib/libmsg/addr.o, because those files *actually
- stand on their own*!
-
- Life kinda s#$%s, but oh well.
- */
-
- #include "xp.h"
-
-
- #ifndef XP_UNIX
- ERROR! this is a unix-only file for the "mimefilt" standalone program.
- This does not go into libmime.a.
- #endif
-
-
- #include <netdb.h>
-
- #define CONST const
-
- extern int MK_MSG_MIME_MAC_FILE;
- extern int MK_MSG_NO_HEADERS;
- extern int MK_OUT_OF_MEMORY;
- extern int MK_UNABLE_TO_OPEN_TMP_FILE;
-
- /* recommended by comment in lib/xp/xp_intl.c... */
- char *
- XP_GetString(int16 i)
- {
- extern char * XP_GetBuiltinString(int16 i);
-
- return XP_GetBuiltinString(i);
- }
-
- int16 INTL_CharSetNameToID(char *charset) { return 0; }
- char *XP_GetStringForHTML (int i, int16 wincsid, char* english)
- {
- return english;
- }
-
-
- /* from nspr somewhere...
- */
- struct hostent *
- PR_gethostbyname(const char *name)
- {
- return gethostbyname(name);
- }
-
-
-
- /* from libnet/mkutils.c */
- PUBLIC char *
- NET_EscapeHTML(const char * string)
- {
- char *rv = (char *) XP_ALLOC(XP_STRLEN(string)*4 + 1); /* The +1 is for
- the trailing
- null! */
- char *ptr = rv;
-
- if(rv)
- {
- for(; *string != '\0'; string++)
- {
- if(*string == '<')
- {
- *ptr++ = '&';
- *ptr++ = 'l';
- *ptr++ = 't';
- *ptr++ = ';';
- }
- else if(*string == '>')
- {
- *ptr++ = '&';
- *ptr++ = 'g';
- *ptr++ = 't';
- *ptr++ = ';';
- }
- else if(*string == '&')
- {
- *ptr++ = '&';
- *ptr++ = 'a';
- *ptr++ = 'm';
- *ptr++ = 'p';
- *ptr++ = ';';
- }
- else
- {
- *ptr++ = *string;
- }
- }
- *ptr = '\0';
- }
-
- return(rv);
- }
-
-
- /* from libnet/mkutils.c */
- # define MSG_FONT int
- # define MSG_PlainFont 0
- # define MSG_BoldFont 1
- # define MSG_ItalicFont 2
- # define MSG_BoldItalicFont 3
- # define MSG_CITATION_SIZE int
- # define MSG_NormalSize 4
- # define MSG_Bigger 5
- # define MSG_Smaller 6
- static int MSG_CitationFont = MSG_ItalicFont;
- static int MSG_CitationSize = MSG_NormalSize;
- static const char *MSG_CitationColor = 0;
-
- #ifndef MOZILLA_30
- # define MSG_Prefs void
- # define MSG_GetCitationStyle(w,x,y,z) do{}while(0)
- # define MSG_GetPrefs(x) 0
- #endif
-
- /* from libnet/mkutils.c */
- PUBLIC int
- NET_ScanForURLs(
- #ifndef MOZILLA_30
- MSG_Pane* pane,
- #endif /* !MOZILLA_30 */
- const char *input, int32 input_size,
- char *output, int output_size, XP_Bool urls_only)
- {
- int col = 0;
- const char *cp;
- const char *end = input + input_size;
- char *output_ptr = output;
- char *end_of_buffer = output + output_size - 40; /* add safty zone :( */
- Bool line_is_citation = FALSE;
- const char *cite_open1, *cite_close1;
- const char *cite_open2, *cite_close2;
- #ifndef MOZILLA_30
- const char* color = NULL;
- #else /* MOZILLA_30 */
- const char* color = MSG_CitationColor;
- #endif /* MOZILLA_30 */
-
- if (urls_only)
- {
- cite_open1 = cite_close1 = "";
- cite_open2 = cite_close2 = "";
- }
- else
- {
- #ifdef MOZILLA_CLIENT
- # ifdef MOZILLA_30
- MSG_FONT font = MSG_CitationFont;
- MSG_CITATION_SIZE size = MSG_CitationSize;
- # else /* !MOZILLA_30 */
- MSG_Prefs* prefs;
- MSG_FONT font = MSG_ItalicFont;
- MSG_CITATION_SIZE size = MSG_NormalSize;
-
- if (pane) {
- prefs = MSG_GetPrefs(pane);
- MSG_GetCitationStyle(prefs, &font, &size, &color);
- }
- #endif /* !MOZILLA_30 */
- switch (font)
- {
- case MSG_PlainFont:
- cite_open1 = "", cite_close1 = "";
- break;
- case MSG_BoldFont:
- cite_open1 = "<B>", cite_close1 = "</B>";
- break;
- case MSG_ItalicFont:
- cite_open1 = "<I>", cite_close1 = "</I>";
- break;
- case MSG_BoldItalicFont:
- cite_open1 = "<B><I>", cite_close1 = "</I></B>";
- break;
- default:
- XP_ASSERT(0);
- cite_open1 = cite_close1 = "";
- break;
- }
- switch (size)
- {
- case MSG_NormalSize:
- cite_open2 = "", cite_close2 = "";
- break;
- case MSG_Bigger:
- cite_open2 = "<FONT SIZE=\"+1\">", cite_close2 = "</FONT>";
- break;
- case MSG_Smaller:
- cite_open2 = "<FONT SIZE=\"-1\">", cite_close2 = "</FONT>";
- break;
- default:
- XP_ASSERT(0);
- cite_open2 = cite_close2 = "";
- break;
- }
- #else /* !MOZILLA_CLIENT */
- XP_ASSERT(0);
- #endif /* !MOZILLA_CLIENT */
- }
-
- if (!urls_only)
- {
- /* Decide whether this line is a quotation, and should be italicized.
- This implements the following case-sensitive regular expression:
-
- ^[ \t]*[A-Z]*[]>]
-
- Which matches these lines:
-
- > blah blah blah
- > blah blah blah
- LOSER> blah blah blah
- LOSER] blah blah blah
- */
- const char *s = input;
- while (s < end && XP_IS_SPACE (*s)) s++;
- while (s < end && *s >= 'A' && *s <= 'Z') s++;
-
- if (s >= end)
- ;
- else if (input_size >= 6 && *s == '>' &&
- !XP_STRNCMP (input, ">From ", 6)) /* #$%^ing sendmail... */
- ;
- else if (*s == '>' || *s == ']')
- {
- line_is_citation = TRUE;
- XP_STRCPY(output_ptr, cite_open1);
- output_ptr += XP_STRLEN(cite_open1);
- XP_STRCPY(output_ptr, cite_open2);
- output_ptr += XP_STRLEN(cite_open2);
- if (color &&
- output_ptr + XP_STRLEN(color) + 20 < end_of_buffer) {
- XP_STRCPY(output_ptr, "<FONT COLOR=");
- output_ptr += XP_STRLEN(output_ptr);
- XP_STRCPY(output_ptr, color);
- output_ptr += XP_STRLEN(output_ptr);
- XP_STRCPY(output_ptr, ">");
- output_ptr += XP_STRLEN(output_ptr);
- }
- }
- }
-
- /* Normal lines are scanned for buried references to URL's
- Unfortunately, it may screw up once in a while (nobody's perfect)
- */
- for(cp = input; cp < end && output_ptr < end_of_buffer; cp++)
- {
- /* if NET_URL_Type returns true then it is most likely a URL
- But only match protocol names if at the very beginning of
- the string, or if the preceeding character was not alphanumeric;
- this lets us match inside "---HTTP://XXX" but not inside of
- things like "NotHTTP://xxx"
- */
- int type = 0;
- if(!XP_IS_SPACE(*cp) &&
- (cp == input || (!XP_IS_ALPHA(cp[-1]) && !XP_IS_DIGIT(cp[-1]))) &&
- (type = NET_URL_Type(cp)) != 0)
- {
- const char *cp2;
- #if 0
- Bool commas_ok = (type == MAILTO_TYPE_URL);
- #endif
-
- for(cp2=cp; cp2 < end; cp2++)
- {
- /* These characters always mark the end of the URL. */
- if (XP_IS_SPACE(*cp2) ||
- *cp2 == '<' || *cp2 == '>' ||
- *cp2 == '`' || *cp2 == ')' ||
- *cp2 == '\'' || *cp2 == '"' ||
- *cp2 == ']' || *cp2 == '}'
- #if 0
- || *cp2 == '!'
- #endif
- )
- break;
-
- #if 0
- /* But a "," marks the end of the URL only if there was no "?"
- earlier in the URL (this is so we can do imagemaps, like
- "foo.html?300,400".)
- */
- else if (*cp2 == '?')
- commas_ok = TRUE;
- else if (*cp2 == ',' && !commas_ok)
- break;
- #endif
- }
-
- /* Check for certain punctuation characters on the end, and strip
- them off. */
- while (cp2 > cp &&
- (cp2[-1] == '.' || cp2[-1] == ',' || cp2[-1] == '!' ||
- cp2[-1] == ';' || cp2[-1] == '-' || cp2[-1] == '?' ||
- cp2[-1] == '#'))
- cp2--;
-
- col += (cp2 - cp);
-
- /* if the url is less than 7 characters then we screwed up
- * and got a "news:" url or something which is worthless
- * to us. Exclude the A tag in this case.
- *
- * Also exclude any URL that ends in a colon; those tend
- * to be internal and magic and uninteresting.
- *
- * And also exclude the builtin icons, whose URLs look
- * like "internal-gopher-binary".
- */
- if (cp2-cp < 7 ||
- (cp2 > cp && cp2[-1] == ':') ||
- !XP_STRNCMP(cp, "internal-", 9))
- {
- XP_MEMCPY(output_ptr, cp, cp2-cp);
- output_ptr += (cp2-cp);
- *output_ptr = 0;
- }
- else
- {
- char *quoted_url;
- int32 size_left = output_size - (output_ptr-output);
-
- if(cp2-cp > size_left)
- return MK_OUT_OF_MEMORY;
-
- XP_MEMCPY(output_ptr, cp, cp2-cp);
- output_ptr[cp2-cp] = 0;
- quoted_url = NET_EscapeHTML(output_ptr);
- if (!quoted_url) return MK_OUT_OF_MEMORY;
- PR_snprintf(output_ptr, size_left,
- "<A HREF=\"%s\">%s</A>",
- quoted_url,
- quoted_url);
- output_ptr += XP_STRLEN(output_ptr);
- XP_FREE(quoted_url);
- output_ptr += XP_STRLEN(output_ptr);
- }
-
- cp = cp2-1; /* go to next word */
- }
- else
- {
- /* Make sure that special symbols don't screw up the HTML parser
- */
- if(*cp == '<')
- {
- XP_STRCPY(output_ptr, "<");
- output_ptr += 4;
- col++;
- }
- else if(*cp == '>')
- {
- XP_STRCPY(output_ptr, ">");
- output_ptr += 4;
- col++;
- }
- else if(*cp == '&')
- {
- XP_STRCPY(output_ptr, "&");
- output_ptr += 5;
- col++;
- }
- else
- {
- *output_ptr++ = *cp;
- col++;
- }
- }
- }
-
- *output_ptr = 0;
-
- if (line_is_citation) /* Close off the highlighting */
- {
- if (color) {
- XP_STRCPY(output_ptr, "</FONT>");
- output_ptr += XP_STRLEN(output_ptr);
- }
-
- XP_STRCPY(output_ptr, cite_close2);
- output_ptr += XP_STRLEN (cite_close2);
- XP_STRCPY(output_ptr, cite_close1);
- output_ptr += XP_STRLEN (cite_close1);
- }
-
- return 0;
- }
-
-
- /* from libnet/mkutils.c */
- PUBLIC int
- NET_URL_Type (CONST char *URL)
- {
- /* Protect from SEGV */
- if (!URL || (URL && *URL == '\0'))
- return(0);
-
- switch(*URL) {
- case 'a':
- case 'A':
- if(!strncasecomp(URL,"about:security", 14))
- return(SECURITY_TYPE_URL);
- else if(!strncasecomp(URL,"about:",6))
- return(ABOUT_TYPE_URL);
- break;
- case 'f':
- case 'F':
- if(!strncasecomp(URL,"ftp:",4))
- return(FTP_TYPE_URL);
- else if(!strncasecomp(URL,"file:",5))
- return(FILE_TYPE_URL);
- break;
- case 'g':
- case 'G':
- if(!strncasecomp(URL,"gopher:",7))
- return(GOPHER_TYPE_URL);
- break;
- case 'h':
- case 'H':
- if(!strncasecomp(URL,"http:",5))
- return(HTTP_TYPE_URL);
- else if(!strncasecomp(URL,"https:",6))
- return(SECURE_HTTP_TYPE_URL);
- break;
- case 'i':
- case 'I':
- if(!strncasecomp(URL,"internal-gopher-",16))
- return(INTERNAL_IMAGE_TYPE_URL);
- else if(!strncasecomp(URL,"internal-news-",14))
- return(INTERNAL_IMAGE_TYPE_URL);
- else if(!strncasecomp(URL,"internal-edit-",14))
- return(INTERNAL_IMAGE_TYPE_URL);
- else if(!strncasecomp(URL,"internal-attachment-",20))
- return(INTERNAL_IMAGE_TYPE_URL);
- else if(!strncasecomp(URL,"internal-dialog-handler",23))
- return(HTML_DIALOG_HANDLER_TYPE_URL);
- else if(!strncasecomp(URL,"internal-panel-handler",22))
- return(HTML_PANEL_HANDLER_TYPE_URL);
- else if(!strncasecomp(URL,"internal-security-",18))
- return(INTERNAL_SECLIB_TYPE_URL);
- break;
- case 'j':
- case 'J':
- if(!strncasecomp(URL, "javascript:",11))
- return(MOCHA_TYPE_URL);
- break;
- case 'l':
- case 'L':
- if(!strncasecomp(URL, "livescript:",11))
- return(MOCHA_TYPE_URL);
- break;
- case 'm':
- case 'M':
- if(!strncasecomp(URL,"mailto:",7))
- return(MAILTO_TYPE_URL);
- else if(!strncasecomp(URL,"mailbox:",8))
- return(MAILBOX_TYPE_URL);
- else if(!strncasecomp(URL, "mocha:",6))
- return(MOCHA_TYPE_URL);
- break;
- case 'n':
- case 'N':
- if(!strncasecomp(URL,"news:",5))
- return(NEWS_TYPE_URL);
- #ifdef NFS_TYPE_URL
- else if(!strncasecomp(URL,"nfs:",4))
- return(NFS_TYPE_URL);
- #endif /* NFS_TYPE_URL */
- break;
- case 'p':
- case 'P':
- if(!strncasecomp(URL,"pop3:",5))
- return(POP3_TYPE_URL);
- break;
- case 'r':
- case 'R':
- if(!strncasecomp(URL,"rlogin:",7))
- return(RLOGIN_TYPE_URL);
- break;
- case 's':
- case 'S':
- if(!strncasecomp(URL,"snews:",6))
- return(NEWS_TYPE_URL);
- case 't':
- case 'T':
- if(!strncasecomp(URL,"telnet:",7))
- return(TELNET_TYPE_URL);
- else if(!strncasecomp(URL,"tn3270:",7))
- return(TN3270_TYPE_URL);
- break;
- case 'v':
- case 'V':
- if(!strncasecomp(URL, VIEW_SOURCE_URL_PREFIX,
- sizeof(VIEW_SOURCE_URL_PREFIX)-1))
- return(VIEW_SOURCE_TYPE_URL);
- break;
- case 'w':
- case 'W':
- if(!strncasecomp(URL,"wais:",5))
- return(WAIS_TYPE_URL);
- break;
- case 'u':
- case 'U':
- if(!strncasecomp(URL,"URN:",4))
- return(URN_TYPE_URL);
- break;
-
- }
-
- /* no type match :( */
- return(0);
- }
-
-
-
- /* from libnet/mkparse.c */
- PRIVATE CONST
- int netCharType[256] =
- /* Bit 0 xalpha -- the alphas
- ** Bit 1 xpalpha -- as xalpha but
- ** converts spaces to plus and plus to %20
- ** Bit 3 ... path -- as xalphas but doesn't escape '/'
- */
- /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
- { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x */
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1x */
- 0,0,0,0,0,0,0,0,0,0,7,4,0,7,7,4, /* 2x !"#$%&'()*+,-./ */
- 7,7,7,7,7,7,7,7,7,7,0,0,0,0,0,0, /* 3x 0123456789:;<=>? */
- 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /* 4x @ABCDEFGHIJKLMNO */
- 7,7,7,7,7,7,7,7,7,7,7,0,0,0,0,7, /* 5X PQRSTUVWXYZ[\]^_ */
- 0,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /* 6x `abcdefghijklmno */
- 7,7,7,7,7,7,7,7,7,7,7,0,0,0,0,0, /* 7X pqrstuvwxyz{\}~ DEL */
- 0, };
-
- #define IS_OK(C) (netCharType[((unsigned int) (C))] & (mask))
-
-
- #define HEX_ESCAPE '%'
-
-
- PUBLIC char *
- NET_Escape (const char * str, int mask)
- {
- register CONST unsigned char *src;
- register unsigned char *dst;
- char *result;
- int32 extra = 0;
- char *hexChars = "0123456789ABCDEF";
-
- if(!str)
- return(0);
-
- for(src=((unsigned char *)str); *src; src++)
- {
- if (!IS_OK(*src))
- extra+=2; /* the escape, plus an extra byte for each nibble */
- }
-
- if(!(result = (char *) XP_ALLOC((int32) (src - ((unsigned char *)str)) + extra + 1)))
- return(0);
-
- dst = (unsigned char *) result;
- for(src=((unsigned char *)str); *src; src++)
- if (IS_OK((unsigned char) (*src)))
- {
- *dst++ = *src;
- }
- else if(mask == URL_XPALPHAS && *src == ' ')
- {
- *dst++ = '+'; /* convert spaces to pluses */
- }
- else
- {
- *dst++ = HEX_ESCAPE;
- *dst++ = hexChars[(*src >> 4) & 0x0f]; /* high nibble */
- *dst++ = hexChars[*src & 0x0f]; /* low nibble */
- }
-
- *dst++ = '\0'; /* tack on eos */
- return result;
- }
-
-
- /* from libmsg/msgutils.c */
- int
- msg_GrowBuffer (uint32 desired_size, uint32 element_size, uint32 quantum,
- char **buffer, uint32 *size)
- {
- if (*size <= desired_size)
- {
- char *new_buf;
- uint32 increment = desired_size - *size;
- if (increment < quantum) /* always grow by a minimum of N bytes */
- increment = quantum;
-
- #ifdef TESTFORWIN16
- if (((*size + increment) * (element_size / sizeof(char))) >= 64000)
- {
- /* Make sure we don't choke on WIN16 */
- XP_ASSERT(0);
- return MK_OUT_OF_MEMORY;
- }
- #endif /* DEBUG */
-
- new_buf = (*buffer
- ? (char *) XP_REALLOC (*buffer, (*size + increment)
- * (element_size / sizeof(char)))
- : (char *) XP_ALLOC ((*size + increment)
- * (element_size / sizeof(char))));
- if (! new_buf)
- return MK_OUT_OF_MEMORY;
- *buffer = new_buf;
- *size += increment;
- }
- return 0;
- }
-
-
- XP_List * ExternalURLTypeList=0;
-
- #define EXTERNAL_TYPE_URL 999 /* a special external URL type */
-
- /* check the passed in url to see if it is an
- * external type url
- */
- PRIVATE int
- net_CheckForExternalURLType(char * url)
- {
- XP_List * list_ptr = ExternalURLTypeList;
- char * reg_type;
- int len;
-
- while((reg_type = (char *)XP_ListNextObject(list_ptr)))
- {
- len = XP_STRLEN(reg_type);
- if(!strncasecomp(reg_type, url, len) && url[len] == ':')
- {
- /* found it */
- return EXTERNAL_TYPE_URL; /* done */
- }
- }
-
- return(0);
- }
-
- /* modifies a url of the form /foo/../foo1 -> /foo1
- *
- * it only operates on "file" "ftp" and "http" url's all others are returned
- * unmodified
- *
- * returns the modified passed in URL string
- */
- PRIVATE char *
- net_ReduceURL (char *url)
- {
- int url_type = NET_URL_Type(url);
- char * fwd_ptr;
- char * url_ptr;
- char * path_ptr;
-
- if(!url)
- return(url);
-
- if(url_type == HTTP_TYPE_URL || url_type == FILE_TYPE_URL ||
- url_type == FTP_TYPE_URL ||
- url_type == SECURE_HTTP_TYPE_URL)
- {
-
- /* find the path so we only change that and not the host
- */
- path_ptr = XP_STRCHR(url, '/');
-
- if(!path_ptr)
- return(url);
-
- if(*(path_ptr+1) == '/')
- path_ptr = XP_STRCHR(path_ptr+2, '/');
-
- if(!path_ptr)
- return(url);
-
- fwd_ptr = path_ptr;
- url_ptr = path_ptr;
-
- for(; *fwd_ptr != '\0'; fwd_ptr++)
- {
-
- if(*fwd_ptr == '/' && *(fwd_ptr+1) == '.' && *(fwd_ptr+2) == '/')
- {
- /* remove ./
- */
- fwd_ptr += 1;
- }
- else if(*fwd_ptr == '/' && *(fwd_ptr+1) == '.' && *(fwd_ptr+2) == '.' &&
- (*(fwd_ptr+3) == '/' || *(fwd_ptr+3) == '\0'))
- {
- /* remove foo/..
- */
- /* reverse the url_ptr to the previous slash
- */
- if(url_ptr != path_ptr)
- url_ptr--; /* we must be going back at least one */
- for(;*url_ptr != '/' && url_ptr != path_ptr; url_ptr--)
- ; /* null body */
-
- /* forward the fwd_prt past the ../
- */
- fwd_ptr += 2;
- }
- else
- {
- /* copy the url incrementaly
- */
- *url_ptr++ = *fwd_ptr;
- }
- }
- *url_ptr = '\0'; /* terminate the url */
- }
-
- return(url);
- }
-
-
- /* Makes a relative URL into an absolute one.
- *
- * If an absolute url is passed in it will be copied and returned.
- *
- * Always returns a malloc'd string or NULL on out of memory error
- */
- PUBLIC char *
- NET_MakeAbsoluteURL(char * absolute_url, char * relative_url)
- {
- char * ret_url=0;
- int new_length;
- char * cat_point=0;
- char cat_point_char;
- int url_type=0;
- int base_type;
-
- /* if either is NULL
- */
- if(!absolute_url || !relative_url)
- {
- StrAllocCopy(ret_url, relative_url);
- return(ret_url);
- }
-
- /* use the URL_Type function to figure
- * out if it's a recognized URL method
- */
- url_type = NET_URL_Type(relative_url);
-
- /* there are some extra cases we need to catch
- */
- if(!url_type)
- {
- switch(*relative_url)
- {
- case 'i':
- if(!XP_STRNCMP(relative_url,"internal-icon-", 14)
- || !XP_STRNCMP(relative_url,"internal-external-reconnect:", 28)
- || !XP_STRCMP(relative_url,"internal-external-plugin"))
- url_type = INTERNAL_IMAGE_TYPE_URL;
- break;
- case '/':
- if(!strncasecomp(relative_url, "/mc-icons/", 10) ||
- !strncasecomp(relative_url, "/ns-icons/", 10))
- {
- if(!XP_STRCMP(relative_url+10, "menu.gif"))
- url_type = INTERNAL_IMAGE_TYPE_URL;
- else if(!XP_STRCMP(relative_url+10, "unknown.gif"))
- url_type = INTERNAL_IMAGE_TYPE_URL;
- else if(!XP_STRCMP(relative_url+10, "text.gif"))
- url_type = INTERNAL_IMAGE_TYPE_URL;
- else if(!XP_STRCMP(relative_url+10, "image.gif"))
- url_type = INTERNAL_IMAGE_TYPE_URL;
- else if(!XP_STRCMP(relative_url+10, "sound.gif"))
- url_type = INTERNAL_IMAGE_TYPE_URL;
- else if(!XP_STRCMP(relative_url+10, "binary.gif"))
- url_type = INTERNAL_IMAGE_TYPE_URL;
- else if(!XP_STRCMP(relative_url+10, "movie.gif"))
- url_type = INTERNAL_IMAGE_TYPE_URL;
- }
- break;
- }
- }
- else if(url_type == ABOUT_TYPE_URL)
- {
- /* don't allow about:cache in a document */
- if(!strncasecomp(relative_url, "about:cache", 11)
- || !strncasecomp(relative_url, "about:global", 12)
- || !strncasecomp(relative_url, "about:image-cache", 17)
- || !strncasecomp(relative_url, "about:memory-cache", 18))
- {
- return XP_STRDUP("");
- }
- }
-
- if(!url_type)
- url_type = net_CheckForExternalURLType(relative_url);
-
- if(url_type)
- {
- /* it's either an absolute url
- * or a messed up one of the type proto:/path
- * but notice the missing host.
- */
- char * colon = XP_STRCHR(relative_url, ':'); /* must be there */
-
- if( (colon && *(colon+1) == '/' && *(colon+2) == '/') ||
- (url_type != GOPHER_TYPE_URL
- && url_type != FTP_TYPE_URL
- && url_type != HTTP_TYPE_URL
- && url_type != SECURE_HTTP_TYPE_URL
- && url_type != RLOGIN_TYPE_URL
- && url_type != TELNET_TYPE_URL
- && url_type != TN3270_TYPE_URL
- && url_type != WAIS_TYPE_URL) )
- {
- /* it appears to have all it's parts. Assume it's completely
- * absolute
- */
- StrAllocCopy(ret_url, relative_url);
- return(ret_url);
- }
- else
- {
- /* it's a screwed up relative url of the form http:[relative url]
- * remove the stuff before and at the colon and treat it as a normal
- * relative url
- */
- char * colon = XP_STRCHR(relative_url, ':');
-
- relative_url = colon+1;
- }
- }
-
-
- /* At this point, we know that `relative_url' is not absolute.
- If the base URL, `absolute_url', is a "mailbox:" URL, then
- we should not allow relative expansion: that is,
- NET_MakeAbsoluteURL("mailbox:/A/B/C", "YYY") should not
- return "mailbox:/A/B/YYY".
-
- However, expansion of "#" and "?" parameters should work:
- NET_MakeAbsoluteURL("mailbox:/A/B/C?id=XXX", "#part2")
- should be allowed to expand to "mailbox:/A/B/C?id=XXX#part2".
-
- If you allow random HREFs in attached HTML to mail messages to
- expand to mailbox URLs, then bad things happen -- among other
- things, an entry will be automatically created in the folders
- list for each of these bogus non-files.
-
- It's an open question as to whether relative expansion should
- be allowed for news: and snews: URLs.
-
- Reasons to allow it:
-
- = ClariNet has been using it
-
- = (Their reason:) it's the only way for an HTML news message
- to refer to another HTML news message in a way which
- doesn't make assumptions about the name of the news host,
- and which also doesn't assume that the message is on the
- default news host.
-
- Reasons to disallow it:
-
- = Consistency with "mailbox:"
-
- = If there is a news message which has type text/html, and
- which has a relative URL like <IMG SRC="foo.gif"> in it,
- but which has no <BASE> tag, then we would expand that
- image to "news:foo.gif". Which would fail, of course,
- but which might annoy news admins by generating bogus
- references.
-
- So for now, let's allow
- NET_MakeAbsoluteURL("news:123@4", "456@7") => "news:456@7"; and
- NET_MakeAbsoluteURL("news://h/123@4", "456@7") => "news://h/456@7".
- */
- base_type = NET_URL_Type(absolute_url);
- if (base_type == MAILBOX_TYPE_URL &&
- *relative_url != '#' &&
- *relative_url != '?')
- {
- return XP_STRDUP("");
- }
-
- if(relative_url[0] == '/' && relative_url[1] == '/')
- {
- /* a host absolute URL
- */
-
- /* find the colon after the protocol
- */
- cat_point = XP_STRCHR(absolute_url, ':');
- if (cat_point && base_type == WYSIWYG_TYPE_URL)
- cat_point = XP_STRCHR(cat_point + 1, ':');
-
- /* append after the colon
- */
- if(cat_point)
- cat_point++;
-
- }
- else if(relative_url[0] == '/')
- {
- /* a path absolute URL
- * append at the slash after the host part
- */
-
- /* find the colon after the protocol
- */
- char *colon = XP_STRCHR(absolute_url, ':');
- if (colon && base_type == WYSIWYG_TYPE_URL)
- colon = XP_STRCHR(colon + 1, ':');
-
- if(colon)
- {
- if(colon[1] == '/' && colon[2] == '/')
- {
- /* find the next slash
- */
- cat_point = XP_STRCHR(colon+3, '/');
-
- if(!cat_point)
- {
- /* if there isn't another slash then the cat point is the very end
- */
- cat_point = &absolute_url[XP_STRLEN(absolute_url)];
- }
- }
- else
- {
- /* no host was given so the cat_point is right after the colon
- */
- cat_point = colon+1;
- }
-
- #if defined(XP_WIN) || defined(XP_OS2)
- /* this will allow drive letters to work right on windows
- */
- if(XP_IS_ALPHA(*cat_point) && *(cat_point+1) == ':')
- cat_point += 2;
- #endif /* XP_WIN */
-
- }
- }
- else if(relative_url[0] == '#')
- {
- /* a positioning within the same document relative url
- *
- * add teh relative url to the full text of the absolute url minus
- * any # punctuation the url might have
- *
- */
- char * hash = XP_STRCHR(absolute_url, '#');
-
- if(hash)
- {
- char * ques_mark = XP_STRCHR(absolute_url, '?');
-
- if(ques_mark)
- {
- /* this is a hack.
- * copy things to try and make them more correct
- */
- *hash = '\0';
-
- StrAllocCopy(ret_url, absolute_url);
- StrAllocCat(ret_url, relative_url);
- StrAllocCat(ret_url, ques_mark);
-
- *hash = '#';
-
- return(net_ReduceURL(ret_url));
- }
-
- cat_point = hash;
- }
- else
- {
- cat_point = &absolute_url[XP_STRLEN(absolute_url)]; /* the end of the URL */
- }
- }
- else
- {
- /* a completely relative URL
- *
- * append after the last slash
- */
- char * ques = XP_STRCHR(absolute_url, '?');
- char * hash = XP_STRCHR(absolute_url, '#');
-
- if(ques)
- *ques = '\0';
-
- if(hash)
- *hash = '\0';
-
- cat_point = XP_STRRCHR(absolute_url, '/');
-
- /* if there are no slashes then append right after the colon after the protocol
- */
- if(!cat_point)
- cat_point = XP_STRCHR(absolute_url, ':');
-
- /* set the value back
- */
- if(ques)
- *ques = '?';
-
- if(hash)
- *hash = '#';
-
- if(cat_point)
- cat_point++; /* append right after the slash or colon not on it */
- }
-
- if(cat_point)
- {
- cat_point_char = *cat_point; /* save the value */
- *cat_point = '\0';
- new_length = XP_STRLEN(absolute_url) + XP_STRLEN(relative_url) + 1;
- ret_url = (char *) XP_ALLOC(new_length);
- if(!ret_url)
- return(NULL); /* out of memory */
-
- XP_STRCPY(ret_url, absolute_url);
- XP_STRCAT(ret_url, relative_url);
- *cat_point = cat_point_char; /* set the absolute url back to its original state */
- }
- else
- {
- /* something went wrong. just return a copy of the relative url
- */
- StrAllocCopy(ret_url, relative_url);
- }
-
- return(net_ReduceURL(ret_url));
- }
-
-
- /* from libmsg/msgutils.c */
- static int
- msg_convert_and_send_buffer(char* buf, int length, XP_Bool convert_newlines_p,
- int32 (*per_line_fn) (char *line,
- uint32 line_length,
- void *closure),
- void *closure)
- {
- /* Convert the line terminator to the native form.
- */
- char* newline;
-
- XP_ASSERT(buf && length > 0);
- if (!buf || length <= 0) return -1;
- newline = buf + length;
- XP_ASSERT(newline[-1] == CR || newline[-1] == LF);
- if (newline[-1] != CR && newline[-1] != LF) return -1;
-
- if (!convert_newlines_p)
- {
- }
- #if (LINEBREAK_LEN == 1)
- else if ((newline - buf) >= 2 &&
- newline[-2] == CR &&
- newline[-1] == LF)
- {
- /* CRLF -> CR or LF */
- buf [length - 2] = LINEBREAK[0];
- length--;
- }
- else if (newline > buf + 1 &&
- newline[-1] != LINEBREAK[0])
- {
- /* CR -> LF or LF -> CR */
- buf [length - 1] = LINEBREAK[0];
- }
- #else
- else if (((newline - buf) >= 2 && newline[-2] != CR) ||
- ((newline - buf) >= 1 && newline[-1] != LF))
- {
- /* LF -> CRLF or CR -> CRLF */
- length++;
- buf[length - 2] = LINEBREAK[0];
- buf[length - 1] = LINEBREAK[1];
- }
- #endif
-
- return (*per_line_fn)(buf, length, closure);
- }
-
-
- /* from libmsg/msgutils.c */
- int
- msg_LineBuffer (const char *net_buffer, int32 net_buffer_size,
- char **bufferP, uint32 *buffer_sizeP, uint32 *buffer_fpP,
- XP_Bool convert_newlines_p,
- int32 (*per_line_fn) (char *line, uint32 line_length,
- void *closure),
- void *closure)
- {
- int status = 0;
- if (*buffer_fpP > 0 && *bufferP && (*bufferP)[*buffer_fpP - 1] == CR &&
- net_buffer_size > 0 && net_buffer[0] != LF) {
- /* The last buffer ended with a CR. The new buffer does not start
- with a LF. This old buffer should be shipped out and discarded. */
- XP_ASSERT(*buffer_sizeP > *buffer_fpP);
- if (*buffer_sizeP <= *buffer_fpP) return -1;
- status = msg_convert_and_send_buffer(*bufferP, *buffer_fpP,
- convert_newlines_p,
- per_line_fn, closure);
- if (status < 0) return status;
- *buffer_fpP = 0;
- }
- while (net_buffer_size > 0)
- {
- const char *net_buffer_end = net_buffer + net_buffer_size;
- const char *newline = 0;
- const char *s;
-
-
- for (s = net_buffer; s < net_buffer_end; s++)
- {
- /* Move forward in the buffer until the first newline.
- Stop when we see CRLF, CR, or LF, or the end of the buffer.
- *But*, if we see a lone CR at the *very end* of the buffer,
- treat this as if we had reached the end of the buffer without
- seeing a line terminator. This is to catch the case of the
- buffers splitting a CRLF pair, as in "FOO\r\nBAR\r" "\nBAZ\r\n".
- */
- if (*s == CR || *s == LF)
- {
- newline = s;
- if (newline[0] == CR)
- {
- if (s == net_buffer_end - 1)
- {
- /* CR at end - wait for the next character. */
- newline = 0;
- break;
- }
- else if (newline[1] == LF)
- /* CRLF seen; swallow both. */
- newline++;
- }
- newline++;
- break;
- }
- }
-
- /* Ensure room in the net_buffer and append some or all of the current
- chunk of data to it. */
- {
- const char *end = (newline ? newline : net_buffer_end);
- uint32 desired_size = (end - net_buffer) + (*buffer_fpP) + 1;
-
- if (desired_size >= (*buffer_sizeP))
- {
- status = msg_GrowBuffer (desired_size, sizeof(char), 1024,
- bufferP, buffer_sizeP);
- if (status < 0) return status;
- }
- XP_MEMCPY ((*bufferP) + (*buffer_fpP), net_buffer, (end - net_buffer));
- (*buffer_fpP) += (end - net_buffer);
- }
-
- /* Now *bufferP contains either a complete line, or as complete
- a line as we have read so far.
-
- If we have a line, process it, and then remove it from `*bufferP'.
- Then go around the loop again, until we drain the incoming data.
- */
- if (!newline)
- return 0;
-
- status = msg_convert_and_send_buffer(*bufferP, *buffer_fpP,
- convert_newlines_p,
- per_line_fn, closure);
- if (status < 0) return status;
-
- net_buffer_size -= (newline - net_buffer);
- net_buffer = newline;
- (*buffer_fpP) = 0;
- }
- return 0;
- }
-