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authorVincent Sanders <vince@kyllikki.org>2020-07-03 18:07:21 +0100
committerVincent Sanders <vince@kyllikki.org>2020-07-03 18:07:21 +0100
commit0908925ca67652e4e335c5f8ef4139ca6f60904f (patch)
tree13dc0f6975b3f33b3f451f3efe6374151d05f156 /content/dirlist.c
parent1697118e227406764d1cfad78a5fcc9febe152be (diff)
downloadnetsurf-0908925ca67652e4e335c5f8ef4139ca6f60904f.tar.gz
netsurf-0908925ca67652e4e335c5f8ef4139ca6f60904f.tar.bz2
move the file fetcher sources into a single directory
Diffstat (limited to 'content/dirlist.c')
-rw-r--r--content/dirlist.c406
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diff --git a/content/dirlist.c b/content/dirlist.c
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-/*
- * Copyright 2010 Michael Drake <tlsa@netsurf-browser.org>
- *
- * This file is part of NetSurf, http://www.netsurf-browser.org/
- *
- * NetSurf is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * NetSurf 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/** \file
- * Generate HTML content for displaying directory listings (implementation).
- */
-
-#include <stdbool.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "utils/nsurl.h"
-#include "utils/messages.h"
-#include "utils/nscolour.h"
-
-#include "netsurf/types.h"
-#include "netsurf/plot_style.h"
-
-#include "content/dirlist.h"
-#include "desktop/system_colour.h"
-
-static int dirlist_filesize_calculate(unsigned long *bytesize);
-static int dirlist_filesize_value(unsigned long bytesize);
-static char* dirlist_filesize_unit(unsigned long bytesize);
-
-
-/**
- * Generates the top part of an HTML directory listing page
- *
- * \return Top of directory listing HTML
- *
- * This is part of a series of functions. To generate a complete page,
- * call the following functions in order:
- *
- * dirlist_generate_top()
- * dirlist_generate_hide_columns() -- optional
- * dirlist_generate_title()
- * dirlist_generate_parent_link() -- optional
- * dirlist_generate_headings()
- * dirlist_generate_row() -- call 'n' times for 'n' rows
- * dirlist_generate_bottom()
- */
-
-bool dirlist_generate_top(char *buffer, int buffer_length)
-{
- int error = snprintf(buffer, buffer_length,
- "<html>\n"
- "<head>\n"
- "<link rel=\"stylesheet\" title=\"Standard\" "
- "type=\"text/css\" href=\"resource:internal.css\">\n"
- "<style>\n");
- if (error < 0 || error >= buffer_length)
- /* Error or buffer too small */
- return false;
- else
- /* OK */
- return true;
-
-}
-
-
-/**
- * Generates the part of an HTML directory listing page that can suppress
- * particular columns
- *
- * \param flags flags for which cols to suppress. 0 to suppress none
- * \param buffer buffer to fill with generated HTML
- * \param buffer_length maximum size of buffer
- * \return true iff buffer filled without error
- *
- * This is part of a series of functions. To generate a complete page,
- * call the following functions in order:
- *
- * dirlist_generate_top()
- * dirlist_generate_hide_columns() -- optional
- * dirlist_generate_title()
- * dirlist_generate_parent_link() -- optional
- * dirlist_generate_headings()
- * dirlist_generate_row() -- call 'n' times for 'n' rows
- * dirlist_generate_bottom()
- */
-
-bool dirlist_generate_hide_columns(int flags, char *buffer, int buffer_length)
-{
- int error = snprintf(buffer, buffer_length,
- "%s\n%s\n%s\n%s\n%s\n",
- (flags & DIRLIST_NO_NAME_COLUMN) ?
- "span.name { display: none; }\n" : "",
- (flags & DIRLIST_NO_TYPE_COLUMN) ?
- "span.type { display: none; }\n" : "",
- (flags & DIRLIST_NO_SIZE_COLUMN) ?
- "span.size { display: none; }\n" : "",
- (flags & DIRLIST_NO_DATE_COLUMN) ?
- "span.date { display: none; }\n" : "",
- (flags & DIRLIST_NO_TIME_COLUMN) ?
- "span.time { display: none; }\n" : "");
- if (error < 0 || error >= buffer_length)
- /* Error or buffer too small */
- return false;
- else
- /* OK */
- return true;
-}
-
-
-/**
- * Generates the part of an HTML directory listing page that contains the title
- *
- * \param title title to use
- * \param buffer buffer to fill with generated HTML
- * \param buffer_length maximum size of buffer
- * \return true iff buffer filled without error
- *
- * This is part of a series of functions. To generate a complete page,
- * call the following functions in order:
- *
- * dirlist_generate_top()
- * dirlist_generate_hide_columns() -- optional
- * dirlist_generate_title()
- * dirlist_generate_parent_link() -- optional
- * dirlist_generate_headings()
- * dirlist_generate_row() -- call 'n' times for 'n' rows
- * dirlist_generate_bottom()
- */
-
-bool dirlist_generate_title(const char *title, char *buffer, int buffer_length)
-{
- const char *stylesheet;
- nserror err;
- int error;
-
- if (title == NULL)
- title = "";
-
- err = nscolour_get_stylesheet(&stylesheet);
- if (err != NSERROR_OK) {
- return false;
- }
-
- error = snprintf(buffer, buffer_length,
- "</style>\n"
- "<title>%s</title>\n"
- "<style>\n"
- "html {\n"
- "\tbackground-color: #%06x;\n"
- "}\n"
- "%s"
- "</style>\n"
- "</head>\n"
- "<body id=\"dirlist\" class=\"ns-even-bg ns-even-fg ns-border\">\n"
- "<h1 class=\"ns-border\">%s</h1>\n",
- title,
- colour_rb_swap(nscolours[NSCOLOUR_WIN_ODD_BG]),
- stylesheet, title);
- if (error < 0 || error >= buffer_length)
- /* Error or buffer too small */
- return false;
- else
- /* OK */
- return true;
-}
-
-
-/**
- * Generates the part of an HTML directory listing page that links to the parent
- * directory
- *
- * \param parent url of parent directory
- * \param buffer buffer to fill with generated HTML
- * \param buffer_length maximum size of buffer
- * \return true iff buffer filled without error
- *
- * This is part of a series of functions. To generate a complete page,
- * call the following functions in order:
- *
- * dirlist_generate_top()
- * dirlist_generate_hide_columns() -- optional
- * dirlist_generate_title()
- * dirlist_generate_parent_link() -- optional
- * dirlist_generate_headings()
- * dirlist_generate_row() -- call 'n' times for 'n' rows
- * dirlist_generate_bottom()
- */
-
-bool dirlist_generate_parent_link(const char *parent, char *buffer,
- int buffer_length)
-{
- int error = snprintf(buffer, buffer_length,
- "<p><a href=\"%s\">%s</a></p>",
- parent, messages_get("FileParent"));
- if (error < 0 || error >= buffer_length)
- /* Error or buffer too small */
- return false;
- else
- /* OK */
- return true;
-}
-
-
-/**
- * Generates the part of an HTML directory listing page that displays the column
- * headings
- *
- * \param buffer buffer to fill with generated HTML
- * \param buffer_length maximum size of buffer
- * \return true iff buffer filled without error
- *
- * This is part of a series of functions. To generate a complete page,
- * call the following functions in order:
- *
- * dirlist_generate_top()
- * dirlist_generate_hide_columns() -- optional
- * dirlist_generate_title()
- * dirlist_generate_parent_link() -- optional
- * dirlist_generate_headings()
- * dirlist_generate_row() -- call 'n' times for 'n' rows
- * dirlist_generate_bottom()
- */
-
-bool dirlist_generate_headings(char *buffer, int buffer_length)
-{
- int error = snprintf(buffer, buffer_length,
- "<div>\n"
- "<strong>\n"
- "\t<span class=\"name\">%s</span>\n"
- "\t<span class=\"type\">%s</span>\n"
- "\t<span class=\"size\">%s</span>"
- "<span class=\"size\"></span>\n"
- "\t<span class=\"date\">%s</span>\n"
- "\t<span class=\"time\">%s</span>\n"
- "</strong>\n",
- messages_get("FileName"), messages_get("FileType"),
- messages_get("FileSize"), messages_get("FileDate"),
- messages_get("FileTime"));
- if (error < 0 || error >= buffer_length)
- /* Error or buffer too small */
- return false;
- else
- /* OK */
- return true;
-}
-
-
-/**
- * Generates the part of an HTML directory listing page that displays a row
- * in the directory contents table
- *
- * \param even evenness of row number, for alternate row colouring
- * \param directory whether this row is for a directory (or a file)
- * \param url url for row entry
- * \param name name of row entry
- * \param mimetype MIME type of row entry
- * \param size size of row entry. If negative, size is left blank
- * \param date date row entry was last modified
- * \param time time row entry was last modified
- * \param buffer buffer to fill with generated HTML
- * \param buffer_length maximum size of buffer
- * \return true iff buffer filled without error
- *
- * This is part of a series of functions. To generate a complete page,
- * call the following functions in order:
- *
- * dirlist_generate_top()
- * dirlist_generate_hide_columns() -- optional
- * dirlist_generate_title()
- * dirlist_generate_parent_link() -- optional
- * dirlist_generate_headings()
- * dirlist_generate_row() -- call 'n' times for 'n' rows
- * dirlist_generate_bottom()
- */
-
-bool dirlist_generate_row(bool even, bool directory, nsurl *url, char *name,
- const char *mimetype, long long size, char *date, char *time,
- char *buffer, int buffer_length)
-{
- const char *unit;
- char size_string[100];
- int error;
-
- if (size < 0) {
- unit = "";
- strncpy(size_string, "", sizeof size_string);
- } else {
- unit = messages_get(dirlist_filesize_unit((unsigned long)size));
- snprintf(size_string, sizeof size_string, "%d",
- dirlist_filesize_value((unsigned long)size));
- }
-
- error = snprintf(buffer, buffer_length,
- "<a href=\"%s\" class=\"%s %s\">\n"
- "\t<span class=\"name ns-border\">%s</span>\n"
- "\t<span class=\"type ns-border\">%s</span>\n"
- "\t<span class=\"size ns-border\">%s</span>"
- "<span class=\"size ns-border\">%s</span>\n"
- "\t<span class=\"date ns-border\">%s</span>\n"
- "\t<span class=\"time ns-border\">%s</span>\n"
- "</a>\n", nsurl_access(url),
- even ? "even ns-even-bg" : "odd ns-odd-bg",
- directory ? "dir" : "file",
- name, mimetype, size_string, unit, date, time);
- if (error < 0 || error >= buffer_length)
- /* Error or buffer too small */
- return false;
- else
- /* OK */
- return true;
-}
-
-
-/**
- * Generates the bottom part of an HTML directory listing page
- *
- * \return Bottom of directory listing HTML
- *
- * This is part of a series of functions. To generate a complete page,
- * call the following functions in order:
- *
- * dirlist_generate_top()
- * dirlist_generate_hide_columns() -- optional
- * dirlist_generate_title()
- * dirlist_generate_parent_link() -- optional
- * dirlist_generate_headings()
- * dirlist_generate_row() -- call 'n' times for 'n' rows
- * dirlist_generate_bottom()
- */
-
-bool dirlist_generate_bottom(char *buffer, int buffer_length)
-{
- int error = snprintf(buffer, buffer_length,
- "</div>\n"
- "</body>\n"
- "</html>\n");
- if (error < 0 || error >= buffer_length)
- /* Error or buffer too small */
- return false;
- else
- /* OK */
- return true;
-}
-
-
-/**
- * Obtain display value and units for filesize after conversion to B/kB/MB/GB,
- * as appropriate.
- *
- * \param bytesize file size in bytes, updated to filesize in output units
- * \return number of times bytesize has been divided by 1024
- */
-
-int dirlist_filesize_calculate(unsigned long *bytesize)
-{
- int i = 0;
- while (*bytesize > 1024 * 4) {
- *bytesize /= 1024;
- i++;
- if (i == 3)
- break;
- }
- return i;
-}
-
-
-/**
- * Obtain display value for filesize after conversion to B/kB/MB/GB,
- * as appropriate
- *
- * \param bytesize file size in bytes
- * \return Value to display for file size, in units given by filesize_unit()
- */
-
-int dirlist_filesize_value(unsigned long bytesize)
-{
- dirlist_filesize_calculate(&bytesize);
- return (int)bytesize;
-}
-
-
-/**
- * Obtain display units for filesize after conversion to B/kB/MB/GB,
- * as appropriate
- *
- * \param bytesize file size in bytes
- * \return Units to display for file size, for value given by filesize_value()
- */
-
-char* dirlist_filesize_unit(unsigned long bytesize)
-{
- const char* units[] = { "Bytes", "kBytes", "MBytes", "GBytes" };
- return (char*)units[dirlist_filesize_calculate(&bytesize)];
-}