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/* cmd.c: the cgit command dispatcher
 *
 * Copyright (C) 2008 Lars Hjemli
 * Copyright (C) 2013 Jason A. Donenfeld <Jason@zx2c4.com>.
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "cmd.h"
#include "cache.h"
#include "ui-shared.h"
#include "ui-atom.h"
#include "ui-blob.h"
#include "ui-clone.h"
#include "ui-commit.h"
#include "ui-diff.h"
#include "ui-log.h"
#include "ui-patch.h"
#include "ui-plain.h"
#include "ui-refs.h"
#include "ui-repolist.h"
#include "ui-snapshot.h"
#include "ui-stats.h"
#include "ui-summary.h"
#include "ui-tag.h"
#include "ui-tree.h"

static void HEAD_fn(struct cgit_context *ctx)
{
	cgit_clone_head(ctx);
}

static void atom_fn(struct cgit_context *ctx)
{
	cgit_print_atom(ctx->qry.head, ctx->qry.path, ctx->cfg.max_atom_items);
}

static void about_fn(struct cgit_context *ctx)
{
	if (ctx->repo)
		cgit_print_repo_readme(ctx->qry.path);
	else
		cgit_print_site_readme();
}

static void blob_fn(struct cgit_context *ctx)
{
	cgit_print_blob(ctx->qry.sha1, ctx->qry.path, ctx->qry.head, 0);
}

static void commit_fn(struct cgit_context *ctx)
{
	cgit_print_commit(ctx->qry.sha1, ctx->qry.path);
}

static void diff_fn(struct cgit_context *ctx)
{
	cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path, 1);
}

static void info_fn(struct cgit_context *ctx)
{
	cgit_clone_info(ctx);
}

static void log_fn(struct cgit_context *ctx)
{
	cgit_print_log(ctx->qry.sha1, ctx->qry.ofs, ctx->cfg.max_commit_count,
		       ctx->qry.grep, ctx->qry.search, ctx->qry.path, 1,
		       ctx->repo->enable_commit_graph,
		       ctx->repo->commit_sort);
}

static void ls_cache_fn(struct cgit_context *ctx)
{
	ctx->page.mimetype = "text/plain";
	ctx->page.filename = "ls-cache.txt";
	cgit_print_http_headers(ctx);
	cache_ls(ctx->cfg.cache_root);
}

static void objects_fn(struct cgit_context *ctx)
{
	cgit_clone_objects(ctx);
}

static void repolist_fn(struct cgit_context *ctx)
{
	cgit_print_repolist();
}

static void patch_fn(struct cgit_context *ctx)
{
	cgit_print_patch(ctx->qry.sha1, ctx->qry.path);
}

static void plain_fn(struct cgit_context *ctx)
{
	cgit_print_plain(ctx);
}

static void refs_fn(struct cgit_context *ctx)
{
	cgit_print_refs();
}

static void snapshot_fn(struct cgit_context *ctx)
{
	cgit_print_snapshot(ctx->qry.head, ctx->qry.sha1, ctx->qry.path,
			    ctx->repo->snapshots, ctx->qry.nohead);
}

static void stats_fn(struct cgit_context *ctx)
{
	cgit_show_stats(ctx);
}

static void summary_fn(struct cgit_context *ctx)
{
	cgit_print_summary();
}

static void tag_fn(struct cgit_context *ctx)
{
	cgit_print_tag(ctx->qry.sha1);
}

static void tree_fn(struct cgit_context *ctx)
{
	cgit_print_tree(ctx->qry.sha1, ctx->qry.path);
}

#define def_cmd(name, want_repo, want_layout, want_vpath, is_clone) \
	{#name, name##_fn, want_repo, want_layout, want_vpath, is_clone}

struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
{
	static struct cgit_cmd cmds[] = {
		def_cmd(HEAD, 1, 0, 0, 1),
		def_cmd(atom, 1, 0, 0, 0),
		def_cmd(about, 0, 1, 0, 0),
		def_cmd(blob, 1, 0, 0, 0),
		def_cmd(commit, 1, 1, 1, 0),
		def_cmd(diff, 1, 1, 1, 0),
		def_cmd(info, 1, 0, 0, 1),
		def_cmd(log, 1, 1, 1, 0),
		def_cmd(ls_cache, 0, 0, 0, 0),
		def_cmd(objects, 1, 0, 0, 1),
		def_cmd(patch, 1, 0, 1, 0),
		def_cmd(plain, 1, 0, 0, 0),
		def_cmd(refs, 1, 1, 0, 0),
		def_cmd(repolist, 0, 0, 0, 0),
		def_cmd(snapshot, 1, 0, 0, 0),
		def_cmd(stats, 1, 1, 1, 0),
		def_cmd(summary, 1, 1, 0, 0),
		def_cmd(tag, 1, 1, 0, 0),
		def_cmd(tree, 1, 1, 1, 0),
	};
	int i;

	if (ctx->qry.page == NULL) {
		if (ctx->repo)
			ctx->qry.page = "summary";
		else
			ctx->qry.page = "repolist";
	}

	for (i = 0; i < sizeof(cmds)/sizeof(*cmds); i++)
		if (!strcmp(ctx->qry.page, cmds[i].name))
			return &cmds[i];
	return NULL;
}
s="p">; }; struct cgit_page { time_t modified; time_t expires; size_t size; char *mimetype; char *charset; char *filename; char *etag; char *title; int status; char *statusmsg; }; struct cgit_environment { char *cgit_config; char *http_host; char *https; char *no_http; char *path_info; char *query_string; char *request_method; char *script_name; char *server_name; char *server_port; }; struct cgit_context { struct cgit_environment env; struct cgit_query qry; struct cgit_config cfg; struct cgit_repo *repo; struct cgit_page page; }; struct cgit_snapshot_format { const char *suffix; const char *mimetype; write_archive_fn_t write_func; int bit; }; extern const char *cgit_version; extern struct cgit_repolist cgit_repolist; extern struct cgit_context ctx; extern const struct cgit_snapshot_format cgit_snapshot_formats[]; extern struct cgit_repo *cgit_add_repo(const char *url); extern struct cgit_repo *cgit_get_repoinfo(const char *url); extern void cgit_repo_config_cb(const char *name, const char *value); extern int chk_zero(int result, char *msg); extern int chk_positive(int result, char *msg); extern int chk_non_negative(int result, char *msg); extern char *trim_end(const char *str, char c); extern char *strlpart(char *txt, int maxlen); extern char *strrpart(char *txt, int maxlen); extern void cgit_add_ref(struct reflist *list, struct refinfo *ref); extern int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags, void *cb_data); extern void *cgit_free_commitinfo(struct commitinfo *info); extern int cgit_diff_files(const unsigned char *old_sha1, const unsigned char *new_sha1, unsigned long *old_size, unsigned long *new_size, int *binary, int context, linediff_fn fn); extern void cgit_diff_tree(const unsigned char *old_sha1, const unsigned char *new_sha1, filepair_fn fn, const char *prefix); extern void cgit_diff_commit(struct commit *commit, filepair_fn fn); extern char *fmt(const char *format,...); extern struct commitinfo *cgit_parse_commit(struct commit *commit); extern struct taginfo *cgit_parse_tag(struct tag *tag); extern void cgit_parse_url(const char *url); extern const char *cgit_repobasename(const char *reponame); extern int cgit_parse_snapshots_mask(const char *str); extern int cgit_open_filter(struct cgit_filter *filter); extern int cgit_close_filter(struct cgit_filter *filter); extern int readfile(const char *path, char **buf, size_t *size); #endif /* CGIT_H */