From 4c8e8f64ceb5af93a9a92407d0d6e3b998e7dae4 Mon Sep 17 00:00:00 2001 From: Hannes Janetzek Date: Sat, 8 May 2010 15:24:07 +0000 Subject: [PATCH] added utility function for md5 sum item_changed event now says what has changed SVN revision: 48680 --- src/modules/everything/Evry.h | 10 + src/modules/everything/Makefile.am | 4 +- src/modules/everything/evry_plug_view_thumb.c | 34 ++- src/modules/everything/evry_util.c | 48 ++++ src/modules/everything/md5.c | 251 ++++++++++++++++++ src/modules/everything/md5.h | 24 ++ 6 files changed, 357 insertions(+), 14 deletions(-) create mode 100644 src/modules/everything/md5.c create mode 100644 src/modules/everything/md5.h diff --git a/src/modules/everything/Evry.h b/src/modules/everything/Evry.h index 281d4b7fd..e09b088b7 100644 --- a/src/modules/everything/Evry.h +++ b/src/modules/everything/Evry.h @@ -92,7 +92,13 @@ typedef unsigned int Evry_Type; if (EVRY_ITEM(_it)->detail) eina_stringshare_del(EVRY_ITEM(_it)->detail); \ EVRY_ITEM(_it)->detail = eina_stringshare_add(_detail); +#define EVRY_ITEM_LABEL_SET(_it, _label) \ + if (EVRY_ITEM(_it)->label) eina_stringshare_del(EVRY_ITEM(_it)->label); \ + EVRY_ITEM(_it)->label = eina_stringshare_add(_label); +#define EVRY_ITEM_CONTEXT_SET(_it, _context) \ + if (EVRY_ITEM(_it)->context) eina_stringshare_del(EVRY_ITEM(_it)->context); \ + EVRY_ITEM(_it)->context = eina_stringshare_add(_context); #define EVRY_ITEM_NEW(_base, _plugin, _label, _icon_get, _free) \ (_base *) evry_item_new(EVRY_ITEM(E_NEW(_base, 1)), EVRY_PLUGIN(_plugin), \ @@ -372,6 +378,8 @@ struct _Evry_View struct _Evry_Event_Item_Changed { Evry_Item *item; + int changed_selection; + int changed_icon; }; /* FIXME this should be exposed. @@ -523,6 +531,8 @@ EAPI Eina_Bool evry_util_module_config_check(const char *module_name, int conf, EAPI Evas_Object *evry_util_icon_get(Evry_Item *it, Evas *e); EAPI int evry_util_plugin_items_add(Evry_Plugin *p, Eina_List *items, const char *input, int match_detail, int set_usage); EAPI int evry_items_sort_func(const void *data1, const void *data2); +EAPI void evry_event_item_changed(Evry_Item *it, int change_icon, int change_selected); +EAPI char *evry_util_md5_sum(const char *str); EAPI const char *evry_file_path_get(Evry_Item_File *file); EAPI const char *evry_file_uri_get(Evry_Item_File *file); diff --git a/src/modules/everything/Makefile.am b/src/modules/everything/Makefile.am index 8f89ef92a..c28c7bd7b 100644 --- a/src/modules/everything/Makefile.am +++ b/src/modules/everything/Makefile.am @@ -36,7 +36,9 @@ module_la_SOURCES = $(EVRYHEADERS) \ evry_plug_view_thumb.c \ evry_plug_view_help.c \ evry_plug_clipboard.c \ - evry_plug_text.c + evry_plug_text.c \ + md5.h \ + md5.c module_la_LIBADD = @e_libs@ @dlopen_libs@ module_la_LDFLAGS = -module -avoid-version diff --git a/src/modules/everything/evry_plug_view_thumb.c b/src/modules/everything/evry_plug_view_thumb.c index 97392faae..8796b884b 100644 --- a/src/modules/everything/evry_plug_view_thumb.c +++ b/src/modules/everything/evry_plug_view_thumb.c @@ -1365,28 +1365,36 @@ _cb_item_changed(void *data, int type, void *event) EINA_LIST_FOREACH(sd->items, l, it) if (it->item == ev->item) { - if (it->item->selected) - _pan_item_select(v->span, it, 1); + if (ev->changed_selection) + { + if (it->item->selected) + _pan_item_select(v->span, it, 1); + } if (!it->visible) break; edje_object_part_text_set(it->frame, "e.text.label", it->item->label); - if (it->do_thumb) e_thumb_icon_end(it->thumb); - if (it->thumb) evas_object_del(it->thumb); - if (it->image) evas_object_del(it->image); + if (ev->changed_icon) + { + if (it->do_thumb) e_thumb_icon_end(it->thumb); + if (it->thumb) evas_object_del(it->thumb); + if (it->image) evas_object_del(it->image); - it->thumb = NULL; - it->image = NULL; + it->thumb = NULL; + it->image = NULL; - it->have_thumb = EINA_FALSE; - it->do_thumb = EINA_FALSE; + it->have_thumb = EINA_FALSE; + it->do_thumb = EINA_FALSE; - if (!eina_list_data_find(sd->queue, it)) - sd->queue = eina_list_append(sd->queue, it); + if (!eina_list_data_find(sd->queue, it)) + sd->queue = eina_list_append(sd->queue, it); - if (!sd->thumb_idler) - sd->thumb_idler = ecore_timer_add(0.01,_thumb_idler, sd); + if (!sd->thumb_idler) + sd->thumb_idler = ecore_timer_add(0.01,_thumb_idler, sd); + } + + break; } return 1; diff --git a/src/modules/everything/evry_util.c b/src/modules/everything/evry_util.c index 6abc8ad54..4e34a2c48 100644 --- a/src/modules/everything/evry_util.c +++ b/src/modules/everything/evry_util.c @@ -1,4 +1,5 @@ #include "Evry.h" +#include "md5.h" #define MAX_FUZZ 100 #define MAX_WORDS 5 @@ -840,3 +841,50 @@ evry_file_uri_get(Evry_Item_File *file) return file->url; } + +static void +_cb_free_item_changed(void *data, void *event) +{ + Evry_Event_Item_Changed *ev = event; + + evry_item_free(ev->item); + E_FREE(ev); +} + + +EAPI void +evry_event_item_changed(Evry_Item *it, int icon, int selected) +{ + Evry_Event_Item_Changed *ev; + ev = E_NEW(Evry_Event_Item_Changed, 1); + ev->item = it; + ev->changed_selection = selected; + ev->changed_icon = icon; + evry_item_ref(it); + ecore_event_add(EVRY_EVENT_ITEM_CHANGED, ev, _cb_free_item_changed, NULL); +} + +static char thumb_buf[4096]; +static const char hex[] = "0123456789abcdef"; + +EAPI char * +evry_util_md5_sum(const char *str) +{ + MD5_CTX ctx; + unsigned char hash[MD5_HASHBYTES]; + int n; + char md5out[(2 * MD5_HASHBYTES) + 1]; + MD5Init (&ctx); + MD5Update (&ctx, (unsigned char const*)str, + (unsigned)strlen (str)); + MD5Final (hash, &ctx); + + for (n = 0; n < MD5_HASHBYTES; n++) + { + md5out[2 * n] = hex[hash[n] >> 4]; + md5out[2 * n + 1] = hex[hash[n] & 0x0f]; + } + md5out[2 * n] = '\0'; + + return strdup(md5out); +} diff --git a/src/modules/everything/md5.c b/src/modules/everything/md5.c new file mode 100644 index 000000000..b62a9ffe7 --- /dev/null +++ b/src/modules/everything/md5.c @@ -0,0 +1,251 @@ +/* + * This code implements the MD5 message-digest algorithm. + * The algorithm is due to Ron Rivest. This code was + * written by Colin Plumb in 1993, no copyright is claimed. + * This code is in the public domain; do with it what you wish. + * + * Equivalent code is available from RSA Data Security, Inc. + * This code has been tested against that, and is equivalent, + * except that you don't need to include two pages of legalese + * with every copy. + * + * To compute the message digest of a chunk of bytes, declare an + * MD5Context structure, pass it to MD5Init, call MD5Update as + * needed on buffers full of bytes, and then call MD5Final, which + * will fill a supplied 16-byte array with the digest. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include /* for memcpy() */ +#include "md5.h" + +#if (__BYTE_ORDER == 1234) +#define byteReverse(buf, len) /* Nothing */ +#else +void byteReverse(unsigned char *buf, unsigned longs); + +/* + * Note: this code is harmless on little-endian machines. + */ +void byteReverse(unsigned char *buf, unsigned longs) +{ + uint32_t t; + do { + t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 | + ((unsigned) buf[1] << 8 | buf[0]); + *(uint32_t *) buf = t; + buf += 4; + } while (--longs); +} +#endif + +/* + * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious + * initialization constants. + */ +void MD5Init(MD5_CTX *ctx) +{ + ctx->buf[0] = 0x67452301; + ctx->buf[1] = 0xefcdab89; + ctx->buf[2] = 0x98badcfe; + ctx->buf[3] = 0x10325476; + + ctx->bits[0] = 0; + ctx->bits[1] = 0; +} + +/* + * Update context to reflect the concatenation of another buffer full + * of bytes. + */ +void MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) +{ + uint32_t t; + + /* Update bitcount */ + + t = ctx->bits[0]; + if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t) + ctx->bits[1]++; /* Carry from low to high */ + ctx->bits[1] += len >> 29; + + t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ + + /* Handle any leading odd-sized chunks */ + + if (t) { + unsigned char *p = (unsigned char *) ctx->in + t; + + t = 64 - t; + if (len < t) { + memcpy(p, buf, len); + return; + } + memcpy(p, buf, t); + byteReverse(ctx->in, 16); + MD5Transform(ctx->buf, (uint32_t *) ctx->in); + buf += t; + len -= t; + } + /* Process data in 64-byte chunks */ + + while (len >= 64) { + memcpy(ctx->in, buf, 64); + byteReverse(ctx->in, 16); + MD5Transform(ctx->buf, (uint32_t *) ctx->in); + buf += 64; + len -= 64; + } + + /* Handle any remaining bytes of data. */ + + memcpy(ctx->in, buf, len); +} + +/* + * Final wrapup - pad to 64-byte boundary with the bit pattern + * 1 0* (64-bit count of bits processed, MSB-first) + */ +void MD5Final(unsigned char digest[16], MD5_CTX *ctx) +{ + unsigned count; + unsigned char *p; + + /* Compute number of bytes mod 64 */ + count = (ctx->bits[0] >> 3) & 0x3F; + + /* Set the first char of padding to 0x80. This is safe since there is + always at least one byte free */ + p = ctx->in + count; + *p++ = 0x80; + + /* Bytes of padding needed to make 64 bytes */ + count = 64 - 1 - count; + + /* Pad out to 56 mod 64 */ + if (count < 8) { + /* Two lots of padding: Pad the first block to 64 bytes */ + memset(p, 0, count); + byteReverse(ctx->in, 16); + MD5Transform(ctx->buf, (uint32_t *) ctx->in); + + /* Now fill the next block with 56 bytes */ + memset(ctx->in, 0, 56); + } else { + /* Pad block to 56 bytes */ + memset(p, 0, count - 8); + } + byteReverse(ctx->in, 14); + + /* Append length in bits and transform */ + ((uint32_t *) ctx->in)[14] = ctx->bits[0]; + ((uint32_t *) ctx->in)[15] = ctx->bits[1]; + + MD5Transform(ctx->buf, (uint32_t *) ctx->in); + byteReverse((unsigned char *) ctx->buf, 4); + memcpy(digest, ctx->buf, 16); + memset((char *) ctx, 0, sizeof(ctx)); /* In case it's sensitive */ +} + +/* The four core functions - F1 is optimized somewhat */ + +/* #define F1(x, y, z) (x & y | ~x & z) */ +#define F1(x, y, z) (z ^ (x & (y ^ z))) +#define F2(x, y, z) F1(z, x, y) +#define F3(x, y, z) (x ^ y ^ z) +#define F4(x, y, z) (y ^ (x | ~z)) + +/* This is the central step in the MD5 algorithm. */ +#define MD5STEP(f, w, x, y, z, data, s) \ + ( w += f(x, y, z) + data, w = w<>(32-s), w += x ) + +/* + * The core of the MD5 algorithm, this alters an existing MD5 hash to + * reflect the addition of 16 longwords of new data. MD5Update blocks + * the data and converts bytes into longwords for this routine. + */ +void MD5Transform(uint32_t buf[4], uint32_t const in[16]) +{ + register uint32_t a, b, c, d; + + a = buf[0]; + b = buf[1]; + c = buf[2]; + d = buf[3]; + + MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); + MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); + MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); + MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); + MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); + MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); + MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); + MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); + MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); + MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); + MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); + MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); + MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); + MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); + MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); + MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); + + MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); + MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); + MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); + MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); + MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); + MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); + MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); + MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); + MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); + MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); + MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); + MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); + MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); + MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); + MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); + MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); + + MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); + MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); + MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); + MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); + MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); + MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); + MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); + MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); + MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); + MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); + MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); + MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); + MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); + MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); + MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); + MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); + + MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); + MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); + MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); + MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); + MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); + MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); + MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); + MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); + MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); + MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); + MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); + MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); + MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); + MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); + MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); + MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); + + buf[0] += a; + buf[1] += b; + buf[2] += c; + buf[3] += d; +} diff --git a/src/modules/everything/md5.h b/src/modules/everything/md5.h new file mode 100644 index 000000000..348fcd654 --- /dev/null +++ b/src/modules/everything/md5.h @@ -0,0 +1,24 @@ +#ifndef _MD5_H_ +#define _MD5_H_ + +#include +#include + +#define MD5_HASHBYTES 16 + +typedef struct MD5Context { + uint32_t buf[4]; + uint32_t bits[2]; + unsigned char in[64]; +} MD5_CTX; + +extern void MD5Init(MD5_CTX *context); +extern void MD5Update(MD5_CTX *context,unsigned char const *buf,unsigned len); +extern void MD5Final(unsigned char digest[MD5_HASHBYTES], MD5_CTX *context); + +extern void MD5Transform(uint32_t buf[4], uint32_t const in[16]); +extern char *MD5End(MD5_CTX *, char *); +extern char *MD5File(const char *, char *); +extern char *MD5Data (const unsigned char *, unsigned int, char *); + +#endif