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/* ui-atom.c: functions for atom feeds
 *
 * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "ui-atom.h"
#include "html.h"
#include "ui-shared.h"

static void add_entry(struct commit *commit, const char *host)
{
	char delim = '&';
	char *hex;
	char *mail, *t, *t2;
	struct commitinfo *info;

	info = cgit_parse_commit(commit);
	hex = oid_to_hex(&commit->object.oid);
	html("<entry>\n");
	html("<title>");
	html_txt(info->subject);
	html("</title>\n");
	html("<updated>");
	cgit_print_date(info->committer_date, FMT_ATOMDATE, 0);
	html("</updated>\n");
	html("<author>\n");
	if (info->author) {
		html("<name>");
		html_txt(info->author);
		html("</name>\n");
	}
	if (info->author_email && !ctx.cfg.noplainemail) {
		mail = xstrdup(info->author_email);
		t = strchr(mail, '<');
		if (t)
			t++;
		else
			t = mail;
		t2 = strchr(t, '>');
		if (t2)
			*t2 = '\0';
		html("<email>");
		html_txt(t);
		html("</email>\n");
		free(mail);
	}
	html("</author>\n");
	html("<published>");
	cgit_print_date(info->author_date, FMT_ATOMDATE, 0);
	html("</published>\n");
	if (host) {
		char *pageurl;
		html("<link rel='alternate' type='text/html' href='");
		html(cgit_httpscheme());
		html_attr(host);
		pageurl = cgit_pageurl(ctx.repo->url, "commit", NULL);
		html_attr(pageurl);
		if (ctx.cfg.virtual_root)
			delim = '?';
		htmlf("%cid=%s", delim, hex);
		html("'/>\n");
		free(pageurl);
	}
	htmlf("<id>%s</id>\n", hex);
	html("<content type='text'>\n");
	html_txt(info->msg);
	html("</content>\n");
	html("<content type='xhtml'>\n");
	html("<div xmlns='http://www.w3.org/1999/xhtml'>\n");
	html("<pre>\n");
	html_txt(info->msg);
	html("</pre>\n");
	html("</div>\n");
	html("</content>\n");
	html("</entry>\n");
	cgit_free_commitinfo(info);
}


void cgit_print_atom(char *tip, char *path, int max_count)
{
	char *host;
	const char *argv[] = {NULL, tip, NULL, NULL, NULL};
	struct commit *commit;
	struct rev_info rev;
	int argc = 2;

	if (ctx.qry.show_all)
		argv[1] = "--all";
	else if (!tip)
		argv[1] = ctx.qry.head;

	if (path) {
		argv[argc++] = "--";
		argv[argc++] = path;
	}

	init_revisions(&rev, NULL);
	rev.abbrev = DEFAULT_ABBREV;
	rev.commit_format = CMIT_FMT_DEFAULT;
	rev.verbose_header = 1;
	rev.show_root_diff = 0;
	rev.max_count = max_count;
	setup_revisions(argc, argv, &rev, NULL);
	prepare_revision_walk(&rev);

	host = cgit_hosturl();
	ctx.page.mimetype = "text/xml";
	ctx.page.charset = "utf-8";
	cgit_print_http_headers();
	html("<feed xmlns='http://www.w3.org/2005/Atom'>\n");
	html("<title>");
	html_txt(ctx.repo->name);
	if (path) {
		html("/");
		html_txt(path);
	}
	if (tip && !ctx.qry.show_all) {
		html(", branch ");
		html_txt(tip);
	}
	html("</title>\n");
	html("<subtitle>");
	html_txt(ctx.repo->desc);
	html("</subtitle>\n");
	if (host) {
		char *repourl = cgit_repourl(ctx.repo->url);
		html("<link rel='alternate' type='text/html' href='");
		html(cgit_httpscheme());
		html_attr(host);
		html_attr(repourl);
		html("'/>\n");
		free(repourl);
	}
	while ((commit = get_revision(&rev)) != NULL) {
		add_entry(commit, host);
		free_commit_buffer(commit);
		free_commit_list(commit->parents);
		commit->parents = NULL;
	}
	html("</feed>\n");
	free(host);
}
n">htmlf("<html><head><title>%s", slash); html_txt(fullpath); htmlf("</title></head>\n<body>\n<h2>%s", slash); html_txt(fullpath); html("</h2>\n<ul>\n"); len = strlen(fullpath); if (len > 1) { fullpath[len - 1] = 0; slash = strrchr(fullpath, '/'); if (slash) *(slash + 1) = 0; else fullpath = NULL; html("<li>"); cgit_plain_link("../", NULL, NULL, ctx.qry.head, ctx.qry.sha1, fullpath); html("</li>\n"); } free(fullpath); } static void print_dir_entry(const unsigned char *sha1, const char *base, int baselen, const char *path, unsigned mode) { char *fullpath; fullpath = buildpath(base, baselen, path); if (!S_ISDIR(mode) && !S_ISGITLINK(mode)) fullpath[strlen(fullpath) - 1] = 0; html(" <li>"); if (S_ISGITLINK(mode)) { cgit_submodule_link(NULL, fullpath, sha1_to_hex(sha1)); } else cgit_plain_link(path, NULL, NULL, ctx.qry.head, ctx.qry.sha1, fullpath); html("</li>\n"); free(fullpath); } static void print_dir_tail(void) { html(" </ul>\n</body></html>\n"); } static int walk_tree(const unsigned char *sha1, const char *base, int baselen, const char *pathname, unsigned mode, int stage, void *cbdata) { struct walk_tree_context *walk_tree_ctx = cbdata; if (baselen == walk_tree_ctx->match_baselen) { if (S_ISREG(mode)) { if (print_object(sha1, pathname)) walk_tree_ctx->match = 1; } else if (S_ISDIR(mode)) { print_dir(sha1, base, baselen, pathname); walk_tree_ctx->match = 2; return READ_TREE_RECURSIVE; } } else if (baselen > walk_tree_ctx->match_baselen) { print_dir_entry(sha1, base, baselen, pathname, mode); walk_tree_ctx->match = 2; } else if (S_ISDIR(mode)) { return READ_TREE_RECURSIVE; } return 0; } static int basedir_len(const char *path) { char *p = strrchr(path, '/'); if (p) return p - path + 1; return 0; } void cgit_print_plain(struct cgit_context *ctx) { const char *rev = ctx->qry.sha1; unsigned char sha1[20]; struct commit *commit; struct pathspec_item path_items = { .match = ctx->qry.path, .len = ctx->qry.path ? strlen(ctx->qry.path) : 0 }; struct pathspec paths = { .nr = 1, .items = &path_items }; struct walk_tree_context walk_tree_ctx = { .match = 0 }; if (!rev) rev = ctx->qry.head; if (get_sha1(rev, sha1)) { html_status(404, "Not found", 0); return; } commit = lookup_commit_reference(sha1); if (!commit || parse_commit(commit)) { html_status(404, "Not found", 0); return; } if (!path_items.match) { path_items.match = ""; walk_tree_ctx.match_baselen = -1; print_dir(commit->tree->object.sha1, "", 0, ""); walk_tree_ctx.match = 2; } else walk_tree_ctx.match_baselen = basedir_len(path_items.match); read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx); if (!walk_tree_ctx.match) html_status(404, "Not found", 0); else if (walk_tree_ctx.match == 2) print_dir_tail(); }