No issues found
| Tool | Failure ID | Location | Function | Message | Data |
|---|---|---|---|---|---|
| clang-analyzer | no-output-found | e-mail-formatter-text-highlight.c | Message(text='Unable to locate XML output from invoke-clang-analyzer') | None | |
| clang-analyzer | no-output-found | e-mail-formatter-text-highlight.c | Message(text='Unable to locate XML output from invoke-clang-analyzer') | None |
1 /*
2 * text-highlight.c
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) version 3.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with the program; if not, see <http://www.gnu.org/licenses/>
16 *
17 */
18
19 #ifdef HAVE_CONFIG_H
20 #include <config.h>
21 #endif
22
23 #include "e-mail-formatter-text-highlight.h"
24 #include "languages.h"
25
26 #include <em-format/e-mail-formatter-extension.h>
27 #include <em-format/e-mail-formatter.h>
28 #include <em-format/e-mail-part-utils.h>
29 #include <e-util/e-util.h>
30
31 #include <shell/e-shell-settings.h>
32 #include <shell/e-shell.h>
33
34 #include <libebackend/libebackend.h>
35 #include <libedataserver/libedataserver.h>
36
37 #include <glib/gi18n-lib.h>
38 #include <X11/Xlib.h>
39 #include <camel/camel.h>
40
41 typedef struct _EMailFormatterTextHighlight EMailFormatterTextHighlight;
42 typedef struct _EMailFormatterTextHighlightClass EMailFormatterTextHighlightClass;
43
44 struct _EMailFormatterTextHighlight {
45 EExtension parent;
46 };
47
48 struct _EMailFormatterTextHighlightClass {
49 EExtensionClass parent_class;
50 };
51
52 GType e_mail_formatter_text_highlight_get_type (void);
53 static void e_mail_formatter_formatter_extension_interface_init (EMailFormatterExtensionInterface *iface);
54 static void e_mail_formatter_mail_extension_interface_init (EMailExtensionInterface *iface);
55
56 G_DEFINE_DYNAMIC_TYPE_EXTENDED (
57 EMailFormatterTextHighlight,
58 e_mail_formatter_text_highlight,
59 E_TYPE_EXTENSION,
60 0,
61 G_IMPLEMENT_INTERFACE_DYNAMIC (
62 E_TYPE_MAIL_EXTENSION,
63 e_mail_formatter_mail_extension_interface_init)
64 G_IMPLEMENT_INTERFACE_DYNAMIC (
65 E_TYPE_MAIL_FORMATTER_EXTENSION,
66 e_mail_formatter_formatter_extension_interface_init));
67
68 static gchar *
69 get_default_font (void)
70 {
71 gchar *font;
72 GSettings *settings;
73
74 settings = g_settings_new ("org.gnome.desktop.interface");
75
76 font = g_settings_get_string (settings, "monospace-font-name");
77
78 g_object_unref (settings);
79
80 return font ? font : g_strdup ("monospace 10");
81 }
82
83 static gchar *
84 get_syntax (EMailPart *part,
85 const gchar *uri)
86 {
87 gchar *syntax = NULL;
88 CamelContentType *ct = NULL;
89
90 if (uri) {
91 SoupURI *soup_uri = soup_uri_new (uri);
92 GHashTable *query = soup_form_decode (soup_uri->query);
93
94 syntax = g_hash_table_lookup (query, "__formatas");
95 if (syntax) {
96 syntax = g_strdup (syntax);
97 }
98 g_hash_table_destroy (query);
99 soup_uri_free (soup_uri);
100 }
101
102 /* Try to detect syntax by content-type first */
103 if (syntax == NULL) {
104 ct = camel_mime_part_get_content_type (part->part);
105 if (ct) {
106 gchar *mime_type = camel_content_type_simple (ct);
107
108 syntax = (gchar *) get_syntax_for_mime_type (mime_type);
109 syntax = syntax ? g_strdup (syntax) : NULL;
110 g_free (mime_type);
111 }
112 }
113
114 /* If it fails or the content type too generic, try to detect it by
115 * filename extension */
116 if (syntax == NULL ||
117 (ct != NULL &&
118 (camel_content_type_is (ct, "application", "octet-stream") ||
119 (camel_content_type_is (ct, "text", "plain"))))) {
120 const gchar *filename = camel_mime_part_get_filename (part->part);
121 if (filename) {
122 gchar *ext = g_strrstr (filename, ".");
123 if (ext) {
124 syntax = (gchar *) get_syntax_for_ext (ext + 1);
125 syntax = syntax ? g_strdup (syntax) : NULL;
126 }
127 }
128 }
129
130 /* Out of ideas - use plain text */
131 if (syntax == NULL) {
132 syntax = g_strdup ("txt");
133 }
134
135 return syntax;
136 }
137
138 static gboolean
139 emfe_text_highlight_format (EMailFormatterExtension *extension,
140 EMailFormatter *formatter,
141 EMailFormatterContext *context,
142 EMailPart *part,
143 CamelStream *stream,
144 GCancellable *cancellable)
145 {
146 /* Don't format text/html unless it's an attachment */
147 CamelContentType *ct = camel_mime_part_get_content_type (part->part);
148 if (ct && camel_content_type_is (ct, "text", "html")) {
149 const CamelContentDisposition *disp;
150 disp = camel_mime_part_get_content_disposition (part->part);
151
152 if (!disp || g_strcmp0 (disp->disposition, "attachment") != 0)
153 return FALSE;
154 }
155
156 if (context->mode == E_MAIL_FORMATTER_MODE_PRINTING) {
157
158 CamelDataWrapper *dw;
159 CamelStream *filter_stream;
160 CamelMimeFilter *mime_filter;
161
162 dw = camel_medium_get_content (CAMEL_MEDIUM (part->part));
163 if (!dw) {
164 return FALSE;
165 }
166
167 camel_stream_write_string (
168 stream, "<pre><div class=\"pre\">", cancellable, NULL);
169
170 filter_stream = camel_stream_filter_new (stream);
171 mime_filter = camel_mime_filter_tohtml_new (
172 CAMEL_MIME_FILTER_TOHTML_PRE |
173 CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES, 0);
174 camel_stream_filter_add (
175 CAMEL_STREAM_FILTER (filter_stream), mime_filter);
176 g_object_unref (mime_filter);
177
178 e_mail_formatter_format_text (
179 formatter, part, filter_stream, cancellable);
180
181 camel_stream_flush (filter_stream, cancellable, NULL);
182 g_object_unref (filter_stream);
183
184 camel_stream_write_string (
185 stream, "</div></pre>", cancellable, NULL);
186
187 return TRUE;
188
189 } else if (context->mode == E_MAIL_FORMATTER_MODE_RAW) {
190 gint pipe_stdin, pipe_stdout;
191 GPid pid;
192 CamelDataWrapper *dw;
193 gchar *font_family, *font_size, *syntax;
194 gboolean use_custom_font;
195 EShell *shell;
196 EShellSettings *settings;
197 PangoFontDescription *fd;
198 gboolean success;
199
200 const gchar *argv[] = { "highlight",
201 NULL, /* --font= */
202 NULL, /* --font-size= */
203 NULL, /* --syntax= */
204 "--out-format=html",
205 "--include-style",
206 "--inline-css",
207 "--style=bclear",
208 "--failsafe",
209 NULL };
210
211 dw = camel_medium_get_content (CAMEL_MEDIUM (part->part));
212 if (!dw) {
213 return FALSE;
214 }
215
216 syntax = get_syntax (part, context->uri);
217
218 /* Use the traditional text/plain formatter for plain-text */
219 if (g_strcmp0 (syntax, "txt") == 0) {
220 g_free (syntax);
221 return FALSE;
222 }
223
224 shell = e_shell_get_default ();
225 settings = e_shell_get_shell_settings (shell);
226
227 fd = NULL;
228 use_custom_font = e_shell_settings_get_boolean (
229 settings, "mail-use-custom-fonts");
230 if (!use_custom_font) {
231 gchar *font;
232
233 font = get_default_font ();
234 fd = pango_font_description_from_string (font);
235 g_free (font);
236
237 } else {
238 gchar *font;
239
240 font = e_shell_settings_get_string (
241 settings, "mail-font-monospace");
242 if (!font)
243 font = get_default_font ();
244
245 fd = pango_font_description_from_string (font);
246 g_free (font);
247 }
248
249 font_family = g_strdup_printf (
250 "--font='%s'",
251 pango_font_description_get_family (fd));
252 font_size = g_strdup_printf (
253 "--font-size=%d",
254 pango_font_description_get_size (fd) / PANGO_SCALE);
255
256 argv[1] = font_family;
257 argv[2] = font_size;
258 argv[3] = g_strdup_printf ("--syntax=%s", syntax);
259 g_free (syntax);
260
261 success = g_spawn_async_with_pipes (
262 NULL, (gchar **) argv, NULL,
263 G_SPAWN_SEARCH_PATH, NULL, NULL, &pid,
264 &pipe_stdin, &pipe_stdout, NULL, NULL);
265
266 if (success) {
267 CamelStream *read;
268 CamelStream *write;
269 CamelStream *utf8;
270 GByteArray *ba;
271 gchar *tmp;
272
273 write = camel_stream_fs_new_with_fd (pipe_stdin);
274 read = camel_stream_fs_new_with_fd (pipe_stdout);
275
276 /* Decode the content of mime part to the 'utf8' stream */
277 utf8 = camel_stream_mem_new ();
278 camel_data_wrapper_decode_to_stream_sync (
279 dw, utf8, cancellable, NULL);
280
281 /* Convert the binary data do someting displayable */
282 ba = camel_stream_mem_get_byte_array (CAMEL_STREAM_MEM (utf8));
283 tmp = e_util_utf8_data_make_valid ((gchar *) ba->data, ba->len);
284
285 /* Send the sanitized data to the highlighter */
286 camel_stream_write_string (write, tmp, cancellable, NULL);
287 g_free (tmp);
288 g_object_unref (utf8);
289 g_object_unref (write);
290
291 g_spawn_close_pid (pid);
292
293 g_seekable_seek (G_SEEKABLE (read), 0, G_SEEK_SET, cancellable, NULL);
294 camel_stream_write_to_stream (read, stream, cancellable, NULL);
295 g_object_unref (read);
296 } else {
297 /* We can't call e_mail_formatter_format_as on text/plain,
298 * because text-highlight is registered as an handler for
299 * text/plain, so we would end up in an endless recursion.
300 *
301 * Just return FALSE here and EMailFormatter will automatically
302 * fall back to the default text/plain formatter */
303 if (camel_content_type_is (ct, "text", "plain")) {
304 g_free (font_family);
305 g_free (font_size);
306 g_free ((gchar *) argv[3]);
307 pango_font_description_free (fd);
308
309 return FALSE;
310 } else {
311 /* In case of any other content, force use of
312 * text/plain formatter, because returning FALSE
313 * for text/x-patch or application/php would show
314 * an error, as there is no other handler registered
315 * for these */
316 e_mail_formatter_format_as (
317 formatter, context, part, stream,
318 "application/vnd.evolution.plaintext",
319 cancellable);
320 }
321 }
322
323 g_free (font_family);
324 g_free (font_size);
325 g_free ((gchar *) argv[3]);
326 pango_font_description_free (fd);
327 } else {
328 const gchar *default_charset, *charset;
329 gchar *uri, *str;
330 gchar *syntax;
331
332 default_charset = e_mail_formatter_get_default_charset (formatter);
333 charset = e_mail_formatter_get_charset (formatter);
334
335 if (!default_charset)
336 default_charset = "";
337 if (!charset)
338 charset = "";
339
340 syntax = get_syntax (part, NULL);
341
342 uri = e_mail_part_build_uri (
343 context->folder, context->message_uid,
344 "part_id", G_TYPE_STRING, part->id,
345 "mode", G_TYPE_INT, E_MAIL_FORMATTER_MODE_RAW,
346 "__formatas", G_TYPE_STRING, syntax,
347 "formatter_default_charset", G_TYPE_STRING, default_charset,
348 "formatter_charset", G_TYPE_STRING, charset,
349 NULL);
350
351 g_free (syntax);
352
353 str = g_strdup_printf (
354 "<div class=\"part-container-nostyle\" >"
355 "<iframe width=\"100%%\" height=\"10\""
356 " id=\"%s\" name=\"%s\" "
357 " frameborder=\"0\" src=\"%s\" "
358 " style=\"border: 1px solid #%06x; background-color: #%06x;\">"
359 "</iframe>"
360 "</div>",
361 part->id, part->id, uri,
362 e_color_to_value ((GdkColor *)
363 e_mail_formatter_get_color (
364 formatter, E_MAIL_FORMATTER_COLOR_FRAME)),
365 e_color_to_value ((GdkColor *)
366 e_mail_formatter_get_color (
367 formatter, E_MAIL_FORMATTER_COLOR_CONTENT)));
368
369 camel_stream_write_string (stream, str, cancellable, NULL);
370
371 g_free (str);
372 g_free (uri);
373
374 }
375
376 return TRUE;
377 }
378
379 static const gchar *
380 emfe_text_highlight_get_display_name (EMailFormatterExtension *extension)
381 {
382 return _("Text Highlight");
383 }
384
385 static const gchar *
386 emfe_text_highlight_get_description (EMailFormatterExtension *extension)
387 {
388 return _("Syntax highlighting of mail parts");
389 }
390
391 static const gchar **
392 emfe_text_highlight_mime_types (EMailExtension *extension)
393 {
394 return get_mime_types ();
395 }
396
397 static void
398 emfe_text_highlight_constructed (GObject *object)
399 {
400 EExtensible *extensible;
401 EMailExtensionRegistry *reg;
402
403 extensible = e_extension_get_extensible (E_EXTENSION (object));
404 reg = E_MAIL_EXTENSION_REGISTRY (extensible);
405
406 e_mail_extension_registry_add_extension (reg, E_MAIL_EXTENSION (object));
407 }
408
409 static void
410 e_mail_formatter_text_highlight_init (EMailFormatterTextHighlight *object)
411 {
412 }
413
414 static void
415 e_mail_formatter_text_highlight_class_init (EMailFormatterTextHighlightClass *class)
416 {
417 GObjectClass *object_class;
418 EExtensionClass *extension_class;
419
420 object_class = G_OBJECT_CLASS (class);
421 object_class->constructed = emfe_text_highlight_constructed;
422
423 extension_class = E_EXTENSION_CLASS (class);
424 extension_class->extensible_type = E_TYPE_MAIL_FORMATTER_EXTENSION_REGISTRY;
425 }
426
427 static void
428 e_mail_formatter_text_highlight_class_finalize (EMailFormatterTextHighlightClass *class)
429 {
430 }
431
432 void
433 e_mail_formatter_text_highlight_type_register (GTypeModule *type_module)
434 {
435 e_mail_formatter_text_highlight_register_type (type_module);
436 }
437
438 static void
439 e_mail_formatter_formatter_extension_interface_init (EMailFormatterExtensionInterface *iface)
440 {
441 iface->format = emfe_text_highlight_format;
442 iface->get_display_name = emfe_text_highlight_get_display_name;
443 iface->get_description = emfe_text_highlight_get_description;
444 }
445
446 static void
447 e_mail_formatter_mail_extension_interface_init (EMailExtensionInterface *iface)
448 {
449 iface->mime_types = emfe_text_highlight_mime_types;
450 }