Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 356 insertions, 0 deletions

diff --git a/comm/mailnews/mime/src/mimetric.cpp b/comm/mailnews/mime/src/mimetric.cpp
new file mode 100644
index 0000000000..79eedea75d
--- /dev/null
+++ b/comm/mailnews/mime/src/mimetric.cpp
@@ -0,0 +1,356 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "mimetric.h"
+#include "mimebuf.h"
+#include "prmem.h"
+#include "plstr.h"
+#include "prlog.h"
+#include "msgCore.h"
+#include <ctype.h>
+
+#define MIME_SUPERCLASS mimeInlineTextClass
+MimeDefClass(MimeInlineTextRichtext, MimeInlineTextRichtextClass,
+             mimeInlineTextRichtextClass, &MIME_SUPERCLASS);
+
+static int MimeInlineTextRichtext_parse_line(const char*, int32_t, MimeObject*);
+static int MimeInlineTextRichtext_parse_begin(MimeObject*);
+static int MimeInlineTextRichtext_parse_eof(MimeObject*, bool);
+
+static int MimeInlineTextRichtextClassInitialize(
+    MimeInlineTextRichtextClass* clazz) {
+  MimeObjectClass* oclass = (MimeObjectClass*)clazz;
+  PR_ASSERT(!oclass->class_initialized);
+  oclass->parse_begin = MimeInlineTextRichtext_parse_begin;
+  oclass->parse_line = MimeInlineTextRichtext_parse_line;
+  oclass->parse_eof = MimeInlineTextRichtext_parse_eof;
+  return 0;
+}
+
+/* This function has this clunky interface because it needs to be called
+   from outside this module (no MimeObject, etc.)
+ */
+int MimeRichtextConvert(const char* line, int32_t length, MimeObject* obj,
+                        char** obufferP, int32_t* obuffer_sizeP,
+                        bool enriched_p) {
+  /* RFC 1341 (the original MIME spec) defined text/richtext.
+   RFC 1563 superseded text/richtext with text/enriched.
+   The changes from text/richtext to text/enriched are:
+    - CRLF semantics are different
+    - << maps to <
+    - These tags were added:
+       <VERBATIM>, <NOFILL>, <PARAM>, <FLUSHBOTH>
+    - These tags were removed:
+       <COMMENT>, <OUTDENT>, <OUTDENTRIGHT>, <SAMEPAGE>, <SUBSCRIPT>,
+         <SUPERSCRIPT>, <HEADING>, <FOOTING>, <PARAGRAPH>, <SIGNATURE>,
+       <LT>, <NL>, <NP>
+   This method implements them both.
+
+   draft-resnick-text-enriched-03.txt is a proposed update to 1563.
+    - These tags were added:
+      <FONTFAMILY>, <COLOR>, <PARAINDENT>, <LANG>.
+    However, all of these rely on the magic <PARAM> tag, which we
+    don't implement, so we're ignoring all of these.
+   Interesting fact: it's by Peter W. Resnick from Qualcomm (Eudora).
+   And it also says "It is fully expected that other text formatting
+   standards like HTML and SGML will supplant text/enriched in
+   Internet mail."
+   */
+  int status = 0;
+  char* out;
+  const char* data_end;
+  const char* last_end;
+  const char* this_start;
+  const char* this_end;
+  unsigned int desired_size;
+
+  // The code below must never expand the input by more than 5x;
+  // if it does, the desired_size multiplier (5) below must be changed too
+#define BGROWTH 5
+  if ((uint32_t)length >= ((uint32_t)0xfffffffe) / BGROWTH) return -1;
+  desired_size = (length * BGROWTH) + 1;
+#undef BGROWTH
+  if (desired_size >= (uint32_t)*obuffer_sizeP)
+    status = mime_GrowBuffer(desired_size, sizeof(char), 1024, obufferP,
+                             obuffer_sizeP);
+  if (status < 0) return status;
+
+  if (enriched_p) {
+    for (this_start = line; this_start < line + length; this_start++)
+      if (!IS_SPACE(*this_start)) break;
+    if (this_start >= line + length) /* blank line */
+    {
+      PL_strncpyz(*obufferP, "<BR>", *obuffer_sizeP);
+      return MimeObject_write(obj, *obufferP, strlen(*obufferP), true);
+    }
+  }
+
+  uint32_t outlen = (uint32_t)*obuffer_sizeP;
+  out = *obufferP;
+  *out = 0;
+
+  data_end = line + length;
+  last_end = line;
+  this_start = last_end;
+  this_end = this_start;
+  uint32_t addedlen = 0;
+  while (this_end < data_end) {
+    /* Skip forward to next special character. */
+    while (this_start < data_end && *this_start != '<' && *this_start != '>' &&
+           *this_start != '&')
+      this_start++;
+
+    this_end = this_start;
+
+    /* Skip to the end of the tag. */
+    if (this_start < data_end && *this_start == '<') {
+      this_end++;
+      while (this_end < data_end && !IS_SPACE(*this_end) && *this_end != '<' &&
+             *this_end != '>' && *this_end != '&')
+        this_end++;
+    }
+
+    this_end++;
+
+    /* Push out the text preceding the tag. */
+    if (last_end && last_end != this_start) {
+      memcpy(out, last_end, this_start - last_end);
+      out += this_start - last_end;
+      *out = 0;
+      outlen -= (this_start - last_end);
+    }
+
+    if (this_start >= data_end)
+      break;
+    else if (*this_start == '&') {
+      PL_strncpyz(out, "&amp;", outlen);
+      addedlen = strlen(out);
+      outlen -= addedlen;
+      out += addedlen;
+    } else if (*this_start == '>') {
+      PL_strncpyz(out, "&gt;", outlen);
+      addedlen = strlen(out);
+      outlen -= addedlen;
+      out += addedlen;
+    } else if (enriched_p && this_start < data_end + 1 &&
+               this_start[0] == '<' && this_start[1] == '<') {
+      PL_strncpyz(out, "&lt;", outlen);
+      addedlen = strlen(out);
+      outlen -= addedlen;
+      out += addedlen;
+    } else if (this_start != this_end) {
+      /* Push out this ID. */
+      const char* old = this_start + 1;
+      const char* tag_open = 0;
+      const char* tag_close = 0;
+      if (*old == '/') {
+        /* This is </tag> */
+        old++;
+      }
+
+      switch (*old) {
+        case 'b':
+        case 'B':
+          if (!PL_strncasecmp("BIGGER>", old, 7)) {
+            tag_open = "<FONT SIZE=\"+1\">";
+            tag_close = "</FONT>";
+          } else if (!PL_strncasecmp("BLINK>", old, 6))
+          // Of course, both text/richtext and text/enriched must be
+          // enhanced *somehow*...  Or else what would people think.
+          {
+            tag_open = "<BLINK>";
+            tag_close = "</BLINK>";
+          } else if (!PL_strncasecmp("BOLD>", old, 5)) {
+            tag_open = "<B>";
+            tag_close = "</B>";
+          }
+          break;
+
+        case 'c':
+        case 'C':
+          if (!PL_strncasecmp("CENTER>", old, 7)) {
+            tag_open = "<CENTER>";
+            tag_close = "</CENTER>";
+          } else if (!enriched_p && !PL_strncasecmp("COMMENT>", old, 8)) {
+            tag_open = "<!-- ";
+            tag_close = " -->";
+          }
+          break;
+
+        case 'e':
+        case 'E':
+          if (!PL_strncasecmp("EXCERPT>", old, 8)) {
+            tag_open = "<BLOCKQUOTE>";
+            tag_close = "</BLOCKQUOTE>";
+          }
+          break;
+
+        case 'f':
+        case 'F':
+          if (!PL_strncasecmp("FIXED>", old, 6)) {
+            tag_open = "<TT>";
+            tag_close = "</TT>";
+          } else if (enriched_p && !PL_strncasecmp("FLUSHBOTH>", old, 10)) {
+            tag_open = "<P ALIGN=JUSTIFY>";
+            tag_close = "</P>";
+          } else if (!PL_strncasecmp("FLUSHLEFT>", old, 10)) {
+            tag_open = "<P ALIGN=LEFT>";
+            tag_close = "</P>";
+          } else if (!PL_strncasecmp("FLUSHRIGHT>", old, 11)) {
+            tag_open = "<P ALIGN=RIGHT>";
+            tag_close = "</P>";
+          } else if (!enriched_p && !PL_strncasecmp("FOOTING>", old, 8)) {
+            tag_open = "<H6>";
+            tag_close = "</H6>";
+          }
+          break;
+
+        case 'h':
+        case 'H':
+          if (!enriched_p && !PL_strncasecmp("HEADING>", old, 8)) {
+            tag_open = "<H6>";
+            tag_close = "</H6>";
+          }
+          break;
+
+        case 'i':
+        case 'I':
+          if (!PL_strncasecmp("INDENT>", old, 7)) {
+            tag_open = "<UL>";
+            tag_close = "</UL>";
+          } else if (!PL_strncasecmp("INDENTRIGHT>", old, 12)) {
+            tag_open = 0;
+            tag_close = 0;
+          } else if (!PL_strncasecmp("ITALIC>", old, 7)) {
+            tag_open = "<I>";
+            tag_close = "</I>";
+          }
+          break;
+
+        case 'l':
+        case 'L':
+          if (!enriched_p && !PL_strncasecmp("LT>", old, 3)) {
+            tag_open = "&lt;";
+            tag_close = 0;
+          }
+          break;
+
+        case 'n':
+        case 'N':
+          if (!enriched_p && !PL_strncasecmp("NL>", old, 3)) {
+            tag_open = "<BR>";
+            tag_close = 0;
+          }
+          if (enriched_p && !PL_strncasecmp("NOFILL>", old, 7)) {
+            tag_open = "<NOBR>";
+            tag_close = "</NOBR>";
+          }
+          break;
+
+        case 'o':
+        case 'O':
+          if (!enriched_p && !PL_strncasecmp("OUTDENT>", old, 8)) {
+            tag_open = 0;
+            tag_close = 0;
+          } else if (!enriched_p && !PL_strncasecmp("OUTDENTRIGHT>", old, 13)) {
+            tag_open = 0;
+            tag_close = 0;
+          }
+          break;
+
+        case 'p':
+        case 'P':
+          if (enriched_p && !PL_strncasecmp("PARAM>", old, 6)) {
+            tag_open = "<!-- ";
+            tag_close = " -->";
+          } else if (!enriched_p && !PL_strncasecmp("PARAGRAPH>", old, 10)) {
+            tag_open = "<P>";
+            tag_close = 0;
+          }
+          break;
+
+        case 's':
+        case 'S':
+          if (!enriched_p && !PL_strncasecmp("SAMEPAGE>", old, 9)) {
+            tag_open = 0;
+            tag_close = 0;
+          } else if (!enriched_p && !PL_strncasecmp("SIGNATURE>", old, 10)) {
+            tag_open = "<I><FONT SIZE=\"-1\">";
+            tag_close = "</FONT></I>";
+          } else if (!PL_strncasecmp("SMALLER>", old, 8)) {
+            tag_open = "<FONT SIZE=\"-1\">";
+            tag_close = "</FONT>";
+          } else if (!enriched_p && !PL_strncasecmp("SUBSCRIPT>", old, 10)) {
+            tag_open = "<SUB>";
+            tag_close = "</SUB>";
+          } else if (!enriched_p && !PL_strncasecmp("SUPERSCRIPT>", old, 12)) {
+            tag_open = "<SUP>";
+            tag_close = "</SUP>";
+          }
+          break;
+
+        case 'u':
+        case 'U':
+          if (!PL_strncasecmp("UNDERLINE>", old, 10)) {
+            tag_open = "<U>";
+            tag_close = "</U>";
+          }
+          break;
+
+        case 'v':
+        case 'V':
+          if (enriched_p && !PL_strncasecmp("VERBATIM>", old, 9)) {
+            tag_open = "<PRE>";
+            tag_close = "</PRE>";
+          }
+          break;
+      }
+
+      if (this_start[1] == '/') {
+        if (tag_close) PL_strncpyz(out, tag_close, outlen);
+        addedlen = strlen(out);
+        outlen -= addedlen;
+        out += addedlen;
+      } else {
+        if (tag_open) PL_strncpyz(out, tag_open, outlen);
+        addedlen = strlen(out);
+        outlen -= addedlen;
+        out += addedlen;
+      }
+    }
+
+    /* now go around again */
+    last_end = this_end;
+    this_start = last_end;
+  }
+  *out = 0;
+
+  return MimeObject_write(obj, *obufferP, out - *obufferP, true);
+}
+
+static int MimeInlineTextRichtext_parse_line(const char* line, int32_t length,
+                                             MimeObject* obj) {
+  bool enriched_p = (((MimeInlineTextRichtextClass*)obj->clazz)->enriched_p);
+
+  return MimeRichtextConvert(line, length, obj, &obj->obuffer,
+                             &obj->obuffer_size, enriched_p);
+}
+
+static int MimeInlineTextRichtext_parse_begin(MimeObject* obj) {
+  int status = ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_begin(obj);
+  char s[] = "";
+  if (status < 0) return status;
+  return MimeObject_write(obj, s, 0, true); /* force out any separators... */
+}
+
+static int MimeInlineTextRichtext_parse_eof(MimeObject* obj, bool abort_p) {
+  int status;
+  if (obj->closed_p) return 0;
+
+  /* Run parent method first, to flush out any buffered data. */
+  status = ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_eof(obj, abort_p);
+  if (status < 0) return status;
+
+  return 0;
+}